Design Manual by Martin Terry-Evans

Insul ati on CI/Sfb

(2-)

Insulation Solutions for Roofs, Walls & Floors THE ARCHITECT’S AND DESIGNER'S GUIDE TO CONSTRUCTION AND GOOD PRACTICE

Low Energy – Low Carbon Buildings

Rn7

Pitched Roof Insulation

Insulation CI/Sfb

(27.9)

Tenth Issue

Rn7

March 2011

K7 Pitched Roof Board INSULATION FOR TILED OR SLATED PITCHED WARM ROOF SPACES

Premium performance rigid thermoset insulation – thermal conductivities as low as 0.020 W/m.K

Negligible smoke obscuration

Class 0 fire rated insulation core

Unaffected by air infiltration

G G

Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP and low GWP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

Unventilated – Insulation Between & Under Rafters

The U−values in the tables that follow have been calculated, under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U–value and Condensation Risk Calculations, using the method detailed in BS / I.S. EN ISO 6946: 2007 (Building components and building elements. Thermal resistance and thermal transmittance. Calculation method), and using the conventions set out in BR443 (Conventions for U−value calculations). They are valid for the constructions shown in the details immediately above each table.

Fully Filled Insulation Between Rafters – No Sarking Board Horizontal lap between runs of breathable sarking membrane sealed (if required) with 75 mm wide double sided acrylic adhesive tape

47 mm wide rafters at 600 mm centres

Breathable sarking membrane e.g. Kingspan nilvent ® 1 Kingspan Kooltherm® K7 Pitched Roof Board fully filling space between rafters 3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard under rafters 2/3

NB Calculations assume that the insulation core of Kingspan Kooltherm® K18 Insulated Plasterboard has a thermal conductivity of 0.021 W/m.K (insulant thickness 25–44 mm) or 0.020 W/m.K (insulant thickness ≥ 45 mm).

Figure 1a

NB When calculating U–values to BS / I.S. EN ISO 6946: 2007, the type of mechanical fixing used may change the thickness of insulation required. The effect of fixings for Kingspan Kooltherm® K18 Insulated Plasterboard in the U–value calculations for Figures 1a, 1b, 1c, 1d, 2a, 2b, 4a & 4c is insignificant as the insulation layer penetrated is not the main insulation layer. The U–value calculations for Figures 3a & 3b assume that over rafter layers of insulation are fixed using stainless steel fixings with a cross sectional area 7.45 mm2, with 3.7 fasteners per m2 (insulant thickness 0–40 mm), 6.2 per m2 (insulant thickness 41–60 mm), 8.3 per m2 (insulant thickness 61–80 mm) and 10.0 per m2 (insulant thickness > 80 mm). Please contact the Kingspan Insulation Technical Service Department (see rear cover) for project calculations.

U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K18 Insulated Plasterboard Assuming Rafters of Depth Shown Fully Filled with Kingspan Kooltherm® K7 Pitched Roof Board Rafter Depth (mm)

NB For the purposes of these calculations the standard of workmanship has been assumed good, and therefore the correction factor for air gaps has been ignored.

100 125 150

NB The figures quoted are for guidance only. A detailed U–value calculation and a condensation risk analysis should be completed for each project. NB If your construction is different from those specified, and / or to gain a comprehensive U−value calculation along with a condensation risk analysis of your project, please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

The requirement for a vapour control layer and / or under tile ventilation should be assessed to BS 5250: 2002. Vapour check plasterboard or a separate vapour control layer can be used as preferred (see ‘Design Considerations – Vapour Control Layer’).

Kingspan Kooltherm K18 Insulated Plasterboard contains an integral vapour control layer (see ‘Design Considerations – Vapour Control Layer’).

If tiles are to be used then this normally necessitates the use of counter–battens and tiling battens over the breathable sarking membrane to allow for water drainage and attachment of the tiles.

Product Thickness of Kingspan Kooltherm® K18 Insulated Plasterboard* (mm) 37.5

62.5

82.5

0.19 0.16 0.14

0.15 0.13 0.12

0.13 0.12 0.11

Fully Filled Insulation Between Rafters – 18 mm Sarking Board

Image Key In Figures 1a & 3a the breathable sarking membrane can be placed over the counter–battens, draped to provide for drainage and overlain with tile / slate battens. This will yield a marginally better U–value but it will be more difficult to seal the breathable sarking membrane effectively.

Tiles / slates

38 x 38 mm counter–batten

U−value tables for pitched roofs with rafters at different centres than those specified can be found on the Kingspan Insulation website (see rear cover for details).

Tiles / slate batten

18 mm sarking board

Horizontal lap between runs of breathable sarking membrane sealed (if required) with 75 mm wide double sided acrylic adhesive tape

Natural slates 4

47 mm wide rafters at 600 mm centres

Breathable sarking membrane e.g. Kingspan nilvent ®

U–value Table Key

Kingspan Kooltherm® K7 Pitched Roof Board fully filling space between rafters

Where an is shown, the U−value is higher than the worst of the maximum new build area weighted average U−values allowed by the 2010 Editions of Approved Documents L to the Building Regulations (England & Wales), the 2010 Editions of Technical Handbooks Section 6 (Scotland), the 2006 Editions of Technical Booklets F (Northern Ireland), or the 2008 Editions of Technical Guidance Documents L* (Republic of Ireland).

3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard under rafters 2/3

Figure 1b U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K18 Insulated Plasterboard Assuming Rafters of Depth Shown Fully Filled with Kingspan Kooltherm® K7 Pitched Roof Board Rafter Depth (mm)

* Excluding Change of Use and Material Alterations.

Where an is shown, the combination of insulation products may result in an interstitial condensation risk and so the calculations have been excluded.

100 125 150

Product Thickness of Kingspan Kooltherm® K18 Insulated Plasterboard* (mm) 37.5

62.5

82.5

0.19 0.16 0.14

0.15 0.13 0.12

0.13 0.12 0.10

* Product thickness = insulant thickness + 12.5 mm plasterboard.

at 600 mm Centres (Recommended for New Build or Re–roofing) Partially Filled Insulation Between Rafters – No Sarking Board

Partially Filled Insulation Between Rafters – 18 mm Sarking Board Tiles / slate batten

100 mm vertical lap between runs of Kingspan nilvent ® sealed by the placement of the counter–batten***

18 mm sarking board

Horizontal lap between runs of breathable sarking membrane sealed (if required) with 75 mm wide double sided acrylic adhesive tape

Tiles / slates

Breathable sarking membrane e.g. Kingspan nilvent ®***

Natural slates 4

47 mm wide rafters at 600 mm centres

Air space* Timber batten 47 mm wide rafter at 600 centres Timber batten

Breathable sarking membrane e.g. Kingspan nilvent ®

38 x 38 mm counter–batten***

3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard under rafters 2/3

Air space*

Kingspan Kooltherm® K7 Pitched Roof Board between rafters 3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard under rafters 2/3

Kingspan Kooltherm® K7 Pitched Roof Board between rafters

Figure 1d

Figure 1c U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K18 Insulated Plasterboard Assuming Rafters of Depth Shown Partially Filled with Kingspan Kooltherm® K7 Pitched Roof Board

U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K18 Insulated Plasterboard Assuming Rafters of Depth Shown Partially Filled with Kingspan Kooltherm® K7 Pitched Roof Board

Thickness of Kingspan Kooltherm® K7 Pitched Roof Board (mm)

45 50 55 60 65 70 75 45 50 55 60 65 70 75 80 90 100 45 50 55 60 65 70 75 80 90 100 110 120 125

Product Thickness of Kingspan Kooltherm® K18 Insulated Plasterboard** (mm) 37.5

62.5

82.5

100 mm Deep Rafters

0.19 0.25 0.19 0.24 0.18 0.23 0.17 0.22 0.17 0.21 0.16 125 mm Deep Rafters

0.19 0.25 0.19 0.24 0.18 0.23 0.17 0.22 0.17 0.21 0.16 0.20 0.16 0.19 0.15 0.18 0.14 150 mm Deep Rafters

0.24 0.23 0.23 0.22 0.21 0.20 0.19 0.18 0.17 0.16 0.15

0.19 0.18 0.18 0.17 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.13

45 50 60 65 70 75 80 90

0.14 0.14

45 50 60 65 70 75 80 90 100 110 120

0.14 0.14 0.14 0.13 0.12

45 50 60 65 70 75 80 90 100 110 120 125 130 140

0.14 0.14 0.14 0.13 0.12 0.12 0.11 0.11

* A minimum 13 mm air space must be maintained above the insulation in order to claim the maximum thermal resistance in the cavity. ** Product thickness = insulant thickness + 12.5 mm plasterboard. *** If sealing the roof is deemed to be unimportant, it is possible to lay the breathable membrane in horizontal runs, draped between rafters. This negates the requirement for counter battens. The U–values shown above remain valid.

Product Thickness of Kingspan Kooltherm® K18 Insulated Plasterboard** (mm) 37.5

62.5

82.5

100 mm Deep Rafters

0.25 0.19 0.23 0.18 0.23 0.17 0.22 0.17 0.21 0.16 0.20 0.16 0.19 0.15 125 mm Deep Rafters

0.25 0.19 0.23 0.18 0.22 0.17 0.21 0.17 0.21 0.16 0.20 0.16 0.19 0.15 0.18 0.14 0.17 0.13 0.16 0.13 150 mm Deep Rafters

0.25 0.23 0.22 0.21 0.20 0.20 0.19 0.17 0.16 0.16 0.15 0.15 0.14

0.19 0.18 0.17 0.17 0.16 0.16 0.15 0.14 0.13 0.13 0.13 0.12 0.12

0.14 0.14 0.14 0.13

0.14 0.14 0.14 0.13 0.12 0.12 0.12

0.14 0.14 0.13 0.13 0.12 0.12 0.11 0.11 0.11 0.11

* A minimum 13 mm air space must be maintained above the insulation in order to claim the maximum thermal resistance in the cavity. ** Product thickness = insulant thickness + 12.5 mm plasterboard.

Typical Constructions and U–values Ventilated – Insulation Between & Under Rafters at 400 mm Centres (Recommended for Loft Conversion where Re–roofing is not Intended) No Sarking Board

18 mm Sarking Board 18 mm sarking board

Tiles / slate batten Tiles / slates

Horizontal lap between runs of sarking felt

Natural slates 4

Horizontal lap between runs of sarking felt

Ventilated air space (min. 50 mm) above insulation to current Building Regulations / Standards

Timber batten

47 mm wide rafters at 400 mm centres

Sarking felt

Kingspan Kooltherm® K7 Pitched Roof Board between rafters

3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard under rafters 2/3

Figure 2a

Figure 2b

U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K18 Insulated Plasterboard Assuming Rafters of Depth Shown Partially Filled with Kingspan Kooltherm® K7 Pitched Roof Board

Thickness of Kingspan Kooltherm® K7 Pitched Roof Board (mm)

Product Thickness of Kingspan Kooltherm® K18 Insulated Plasterboard* (mm) 62.5 125 mm Deep Rafters

50 55 60 65 70 75

0.21 0.20 0.19 0.19 0.18 150 mm Deep Rafters

50 55 60 65 70 75 80 90 100

0.21 0.20 0.19 0.19 0.18 0.18 0.17 0.16

82.5

Product Thickness of Kingspan Kooltherm® K18 Insulated Plasterboard* (mm) 62.5 125 mm Deep Rafters

50 55 60 65 70 75

0.16 0.15

50 55 60 65 70 75 80 90 100

0.16 0.15 0.15 0.14 0.14

0.21 0.20 0.19 0.19 0.18 150 mm Deep Rafters

0.21 0.20 0.19 0.19 0.18 0.18 0.17 0.16

* Product thickness = insulant thickness + 12.5 mm plasterboard.

82.5

0.16 0.15

0.16 0.15 0.15 0.14 0.14

Unventilated – Insulation Between & Over Rafters at 600 mm Centres (Recommended for New Build or Re–roofing) No Sarking Board

18 mm Sarking Board

Horizontal lap between runs of breathable sarking membrane sealed (if required) with 75 mm wide double sided acrylic adhesive tape

Tiles / slate batten Tiles / slates

Breathable sarking membrane e.g. Kingspan nilvent ® 1

Breathable sarking membrane e.g. Kingspan nilvent ®

47 mm wide rafters at 600 mm centres

47 mm wide rafter at 600 mm centres

Unventilated air space

38 x 38 mm counter–batten

Kingspan Kooltherm® K7 Pitched Roof Board between and over rafters

Kingspan Kooltherm® K7 Pitched Roof Board between and over rafters Nailable sarking clips 3 mm skim coated 12.5 mm plasterboard 2

Nailable sarking clips 3 mm skim coated 12.5 mm plasterboard 2

Figure 3a

Figure 3b

U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K7 Pitched Roof Board and Different Rafter Depths Thickness of Kingspan Kooltherm® K7 Pitched Roof Board (mm) 35 + 35 35 + 40* 40 + 40 50 + 50 60 + 60 70 + 70 75 + 75 80 + 80 90 + 90 100 + 100 100 + 110*

18 mm sarking board Natural slates 4

U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K7 Pitched Roof Board and Different Rafter Depths

125

150

Thickness of Kingspan Kooltherm® K7 Pitched Roof Board (mm)

0.25 0.24 0.19 0.17 0.14 0.14 0.13 0.12 0.11 0.10

0.25 0.24 0.19 0.16 0.14 0.14 0.13 0.11 0.10 0.10

0.25 0.24 0.19 0.16 0.14 0.13 0.13 0.11 0.10 0.10

35 + 35 35 + 40* 40 + 40 50 + 50 60 + 60 70 + 70 75 + 75 80 + 80 90 + 90 100 + 100 100 + 110*

Rafter Depth (mm) 100

* First thickness refers to thickness between rafters, second thickness over rafters. The thermal resistance of the over rafter layer of insulation must be ≥ that of the between rafter layer so as to avoid condensation.

Rafter Depth (mm) 100

125

150

0.25 0.24 0.19 0.16 0.14 0.13 0.13 0.12 0.11 0.10

0.25 0.24 0.19 0.16 0.14 0.13 0.13 0.11 0.10 0.10

0.25 0.23 0.19 0.16 0.14 0.13 0.13 0.11 0.10 0.10

Typical Constructions and U–values Ventilated and Unventilated – Dwarf Wall and Loft Floor / Ceiling Level Insulation Loft Floor or Flat Ceiling – Insulation Between and Over Joists

Dwarf Wall – Insulation Between Studs and Inside Studs 3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard 2/3

Timber batten*

Kingspan Kooltherm® K7 Pitched Roof Board 47 mm wide joists 47 mm wide studs*

Kingspan Kooltherm® K7 Pitched Roof Board

Figure 4a

Figure 4b U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K7 Pitched Roof Board Installed Between and Over Joists of Depths and Centres Shown

U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K18 Insulated Plasterboard Assuming Studs Shown Filled with Various Thicknesses of Kingspan Kooltherm® K7 Pitched Roof Board Thickness of Kingspan Kooltherm® K7 Pitched Roof Board (mm)

37.5

62.5

Stud Centres (mm)

400

600

Ventilated Construction

30 35 40 45 50 60 70 75 80 90 100 110 120 125 130 140 150 20 25 35 40 45 50 60 70 75 80 90 100 110 120 125 130 140 150

Thickness of Joist Centres (mm) Kingspan 400 600 Kooltherm® K7 Pitched Roof Ventilated Unventilated Ventilated Unventilated Board (mm) Construction Construction Construction Construction

Product Thickness of Kingspan Kooltherm® K18 Insulated Plasterboard** (mm)

400

0.35 0.34 0.34 0.32 0.31 0.30 0.30 0.29 0.21 0.27 0.26 0.20 0.25 0.24 0.19 0.24 0.23 0.18 0.23 0.22 0.18 0.22 0.21 0.17 0.20 0.19 0.16 0.19 0.18 0.15 0.18 0.17 0.15 0.18 0.17 0.14 0.17 0.16 0.14 0.17 0.15 0.13 0.16 0.15 0.13 Unventilated Construction

0.35 0.33 0.30 0.28 0.27 0.25 0.23 0.22 0.22 0.20 0.19 0.18 0.17 0.17 0.16 0.16 0.15

0.34 0.32 0.29 0.27 0.26 0.24 0.22 0.21 0.20 0.19 0.18 0.17 0.16 0.16 0.15 0.15 0.14

0.20 0.19 0.18 0.17 0.17 0.16 0.15 0.14 0.14 0.14 0.13 0.13 0.12

600

100 mm Deep Joists

0.21 0.19 0.18 0.17 0.17 0.16 0.15 0.14 0.14 0.13 0.13 0.13 0.12

100 + 100 100 + 110*

0.11 0.10

0.11 0.11 0.10 0.10 125 mm Deep Joists

0.10 0.10

125 + 125

0.09

0.09 0.09 150 mm Deep Joists

0.08

150 + 150

0.08

0.07

0.19 0.18 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.13 0.13 0.12 0.12

* Where the insulation between studs exceeds the depth of the stud, the stud must be battened out to correspond with the thickness of insulation and horizontal timber ‘stop’ battens must be fixed to the outer surface of the stud to provide a ‘stop’ for the insulation boards so that they can finish flush with the inner surface of the timber studs. ** Product thickness = insulant thickness + 12.5 mm plasterboard.

Linear Thermal Bridging at Wall to Pitched Roof Junctions Linear thermal bridging describes the heat loss at junctions between elements, where the geometry of the junction means that a building’s primary insulation layer is not continuous or is reduced. This heat loss is represented by the junction’s psi (ψ) value. The ψ–values of all the linear thermal bridges in a building are used to produce an overall y–value which is used in whole building carbon dioxide emissions calculation software.

Loft Floor or Collar Tie – Insulation Between and Under Joists

47 mm wide joists

The details in the images that follow (Figures 5a – 9b) are designed to reflect Accredited Construction Details (England & Wales / Scotland / Northern Ireland) and Acceptable Construction Details (Republic of Ireland), collectively referred to here as ACDs.

Kingspan Kooltherm® K7 Pitched Roof Board 3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard 2/3

Unventilated – Insulation Between & Under Rafters (Recommended for New Build or Re–roofing) Figure 4c

38 x 38 mm counter batten

U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K18 Insulated Plasterboard Assuming Joists at Centres Shown with Various Thicknesses of Kingspan Kooltherm® K7 Pitched Roof Board Installed Between Joists Thickness of Kingspan Kooltherm® K7 Pitched Roof Board (mm)

62.5

82.5 Joist Centres (mm)

400

600

Ventilated Construction

40 50 60 65 70 75 80 90 100 110 120 125 130 140 150 40 50 60 65 70 75 80 90 100 110 120 125 130 140 150

Breathable sarking membrane e.g. Kingspan nilvent ® lapped over eaves strip and plywood

Thickness of Kingspan Kooltherm® K18 Insulated Plasterboard* (mm) Joist Centres (mm)

400

0.21 0.20 0.20 0.19 0.19 0.18 0.18 0.18 0.15 0.18 0.17 0.15 0.17 0.16 0.15 0.16 0.16 0.14 0.15 0.15 0.13 0.15 0.14 0.13 0.14 0.13 0.12 0.14 0.13 0.12 0.13 0.13 0.12 0.13 0.12 0.11 0.12 0.12 0.11 Unventilated Construction

0.20 0.19 0.18 0.18 0.17 0.17 0.16 0.15 0.14 0.14 0.13 0.13 0.13 0.12

0.20 0.18 0.18 0.17 0.17 0.16 0.15 0.14 0.14 0.13 0.13 0.12 0.12 0.11

0.15 0.15 0.14 0.14 0.13 0.13 0.12 0.12 0.12 0.11 0.11

Rafter fully / partially filled with Kingspan Kooltherm® K7 Pitched Roof Board

Eaves strip over plywood Marine grade plywood

Seal gap between floor and sloping ceiling

Rafter

600

Cavity closer Flexible insulation material tightly packed to block cold bridge and retard air infiltration

Figure 5a – Overhanging Eaves Detail – Section Perpendicular to Ridge

0.15 0.14 0.14 0.13 0.13 0.12 0.12 0.11 0.11 0.11 0.10

Undercloak

38 x 38 mm counter batten

Breathable sarking membrane e.g. Kingspan nilvent ® laid over marine plywood and under counter battens

Mortar infill

Marine grade plywood Flying rafter Fascia board Cavity closer

Flexible insulation material tightly packed to block cold bridge and retard air infiltration

0.15 0.14 0.14 0.13 0.13 0.12 0.11 0.11 0.11 0.11 0.10

Rafter

Figure 5b – Section Parallel to Ridge

* Product thickness = insulant thickness + 12.5 mm plasterboard. NB Where the insulation between joists exceeds the depth of the joist and access to the loft space is required, the joists must be battened out to correspond with the thickness of insulation and a protective layer (e.g chipboard / OSB) fixed over the insulation.

Rafter fully / partially filled with Kingspan Kooltherm® K7 Pitched Roof Board

Typical Constructions and U–values

Ventilated – Insulation Between & Under Rafters (Recommended for Loft Conversion where Re–Roofing is not Intended)

Unventilated – Insulation Between & Over Rafters (Recommended for New Build or Re–roofing) 38 x 38 mm counter–batten

Proprietary eaves ventilator Optional second layer of breathable sarking membrane e.g. Kingspan nilvent ® with joints taped for air tightness

Sarking felt

Rafter Sarking felt is laid into gutter

Breathable sarking membrane e.g. Kingspan nilvent ® Breathable sarking membrane lapped over eaves strip Eaves strip

Rafter

Flexible insulation material tightly packed to block cold bridge and retard air infiltration

Seal gap between floor and sloping ceiling

Preservative treated stop rail

Cavity closer

Ventilation port

Figure 6a – Overhanging Eaves Detail – Section Perpendicular to Ridge Sarking felt fully covering the undercloak

Cavity closer

Flexible insulation material tightly packed to block cold bridge and retard air infiltration

Air flow path must not be blocked

Marine grade plywood

Seal gap between floor and sloping ceiling

Timber batten

Figure 7a – Overhanging Eaves Detail – Section Perpendicular to Ridge

Sarking felt

Optional second layer of breathable sarking membrane e.g. Kingspan nilvent ® with joints taped for air tightness

Breathable sarking membrane e.g. Kingspan nilvent ® lapped 150 mm (min) over the ridge from each side

Mortar infill Flying rafter Fascia board Cavity closer

Flexible insulation material tightly packed to block cold bridge and retard air infiltration

Ventilated air space 50 mm (min.)

Rafter

Figure 6b – Section Parallel to Ridge

Figure 7b – Ridge Detail – Section Perpendicular to Ridge Undercloak

Breathable sarking membrane e.g. Kingspan nilvent ®

38 x 38 mm counter–batten

Mortar infill Fascia board Cavity closer Flying rafter Flexible insulation material tightly packed to block cold bridge and retard air infiltration Rafter Optional second layer of breathable sarking membrane e.g. Kingspan nilvent ® with joints taped for air tightness

Figure 7c – Section Parallel to Ridge 8

Timber batten

Loft Floor Insulation – Insulation Between and Over Joists Kingspan Kooltherm® K7 Pitched Roof Board installed between and over joists

Loft Floor Insulation – Insulation Between and Under Joists Kingspan Kooltherm® K7 Pitched Roof Board installed between joists

Rafter

Insulated plasterboard e.g. Kingspan Kooltherm® K18 Insulated Plasterboard fixed to underside of joists

Proprietary eaves ventilator

Sarking felt lapped over eaves strip

Sarking felt lapped over eaves strip Cavity closer

Eaves strip

Eaves strip Cavity closer

Flexible insulation material tightly packed to block cold bridge and retard air infiltration

Air flow path must not be blocked

Figure 8a – Ventilated Loft Floor Detail at Eaves Kingspan Kooltherm® K7 Pitched Roof Board installed between and over joists

Figure 9a – Ventilated Loft Floor Detail at Eaves Kingspan Kooltherm® K7 Pitched Roof Board installed between joists

Rafter

Insulated plasterboard e.g. Kingspan Kooltherm® K18 Insulated Plasterboard fixed to underside of joists Breathable sarking membrane e.g. Kingspan nilvent ® lapped over eaves strip and plywood

Breathable sarking membrane e.g. Kingspan nilvent ® lapped over eaves strip and plywood

Eaves strip over plywood

Marine grade plywood

Flexible insulation material tightly packed to block cold bridge and retard air infiltration

Cavity closer

Figure 8b – Unventilated Loft Floor Detail at Eaves

Figure 9b – Unventilated Loft Floor Detail at Eaves

Design Considerations Environmental Impact & Responsible Sourcing

Specification Clause Kingspan Kooltherm® K7 Pitched Roof Board should be described in specifications as:–

Green Guide Rating An Ecoprofile, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, has been created for Kingspan Kooltherm® K7 Pitched Roof Board produced at Kingspan Insulation’s Pembridge manufacturing facility. The BRE has assigned the product a 2008 Green Guide Summary Rating of A+.

The rafter / joist level insulation shall be Kingspan Kooltherm® K7 Pitched Roof Board____ mm thick: comprising a premium performance rigid thermoset insulation core faced on both sides with a low emissivity composite foil facing. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them.

Environmental Profiles Scheme Certificate Number ENP 410

Responsible Sourcing Kingspan Kooltherm® K7 Pitched Roof Board produced at Kingspan Insulation’s Pembridge and Castleblayney manufacturing facilities is manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer component of the product produced at these facilities is also manufactured under a management system certified to BS EN ISO 14001: 2004.

NBS Specifications Details also available in NBS Plus. NBS users should refer to clause: K11 695, P10 140 (Standard and Intermediate) K11 55 (Minor Works)

Insulation at Rafter Level – Choice of Build Up

NB The above information is correct at the time of writing. Please confirm at the point of need by contacting Kingspan Insulation’s Technical Service Department (see rear cover), from which copies of Kingspan Insulation and its suppliers’ ISO 14001 certificates can be obtained along with confirmation of Kingspan Insulation’s products’ Green Guide ratings.

Unventilated and Ventilated Constructions There is generally a choice between unventilated and ventilated constructions, except in the case of refurbishment / loft conversions. In these instances, unless the whole roof is to be stripped or unless there is a breathable sarking membrane already in situ, it is impossible to use an unventilated roof, because a breathable sarking membrane cannot be installed.

Position of Insulation Dependent on the designed U–value of the construction and the available rafter depth and headroom, different approaches can be taken.

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

In most cases, approaches with layers of insulation between and over rafters are likely to yield very tall fascia boards and so, generally, between and under rafter insulation approaches are probably more desirable e.g. Figures 1 and 2. The exception to the rule is when very low U–values are required, in which case headroom may become an issue for between and under rafter solutions, so between and over rafter solutions may be more practical.

In roofs with no continuous surface (Figure 1c), it is preferable, though more difficult, to install the breathable sarking membrane in vertical runs with junctions between runs sealed by counter–battens placed over the laps in rafter positions. The breathable sarking membrane is installed taut as the counter–batten provides a space for water drainage.

Unventilated Roof – Ventilation Considerations Unventilated roof approaches create a warm pitched roof space which does not require cross ventilation. Research suggests that sealing an unventilated roof yields a more energy efficient roof, as the impacts of ventilation and incidental infiltrating cold air can be minimised. Therefore, if creating an unventilated roof, it is preferable to fully seal all joints in the breathable sarking membrane (see ‘Position of Breathable Sarking Membrane’ below). Any water vapour reaching the breathable sarking membrane escapes without condensing. There is then adequate air movement beneath the tiles to dissipate this water vapour to the outside atmosphere. Tape for sealing joints in the breathable sarking membrane should be specified in accordance with the recommendations of the breathable membrane manufacturer.

Recommended Solutions for New Build / Re–roofing The ideal solution for new build or re–roofing projects is, therefore, between and under rafter insulation with a continuous surface for the breathable sarking membrane so that it can be installed in horizontal runs under counter–battens with laps sealed with tape (Figures 1a, 1b & 1d). The next best solution is, therefore, between and under rafter insulation with no continuous surface for the breathable sarking membrane, and the breathable sarking membrane installed in vertical runs with laps sealed under counter–battens (Figure 1c).

The requirement for a vapour control layer and / or under–tile ventilation should be assessed to BS 5250: 2002 (Code of practice for control of condensation in buildings).

Where very low U–values are required, for new build or re–roofing projects, the ideal solution is between and over rafter insulation with the breathable sarking membrane installed in horizontal runs under counter battens with laps sealed with tape (Figures 3a & 3b).

Ventilated Roof – Ventilation Considerations In these cases the Building Regulations / Standards require a 50 mm ventilation air gap between the insulation and the sarking felt, so as to avoid condensation. The requirement for a vapour control layer should be assessed to BS 5250: 2002.

Insulating at Ceiling Level – Choice of Build Up

Vapour Control Layer If required, the vapour resistance of the roof lining can be increased by the use of a vapour check plasterboard*, the use of Kingspan Kooltherm® K18 Insulated Plasterboard, which contains an integral vapour control layer*, the use of a layer of polythene sheeting*, or by the application of two coats of Gyproc Drywall Sealer.

When insulating at ceiling level in a pitched roof with loft insulation between and over joists (Figures 4b, 8a & 8b) it is vital to ensure the continuity of insulation at the specified R−value right to the eaves. This can be difficult because of the angle of pitch of the roof and the position of the rafters can prevent the insulation laid over the joists from being fitted all the way to the eaves. The use of Kingspan Kooltherm® K7 Pitched Roof Board in between joists and Kingspan Kooltherm® K18 Insulated Plasterboard below joists (Figures 4c, 9a & 9b) allows continuity of insulation and can minimise heat loss from this linear thermal bridge.

* With appropriate detailing at joints, penetrations and roof perimeters.

Breathable Sarking Membrane BS 5250: 2002 recommends that low resistance breathable sarking membranes for use in unventilated systems must not have a vapour resistance that exceeds 0.25 MN.s/g, e.g. Kingspan nilvent ®.

Mansard Roofs / Walls

Position of Breathable Sarking Membrane The sealing of breathable sarking membrane joints with tape is considerably easier to achieve if the membrane is installed on a continuous surface (Figures 1a, 1b, 1d, 3a & 3b).

Kingspan Kooltherm® K7 Pitched Roof Board can be used for the construction of insulated tiled or slated mansard roofs / walls. Design and installation guidance is as for pitched roofs.

In these cases the breathable sarking membrane is installed under the counter–battens (which provide a channel for water drainage) or, in situations with a sarking board under a natural slated roof, the breathable sarking membrane is installed directly under the slates (as neither tile battens nor counter–battens are used).

Fire Stops Current Building Regulations / Standards should be considered with regard to the requirements for, and provision of, fire stops.

Lightning Protection Building designers should give consideration to the requirements of BS / I.S. EN 62305: 2006 (Protection against lightning).

Generally, when a continuous surface is available, it will prove easier to install the breathable sarking membrane in horizontal runs, whilst still enabling easy sealing between runs. 11

Sitework Over Rafter Insulation

Between Rafter Insulation

General G A preservative treated stop rail should be secured to the rafters at the eaves.

Between Rafter Insulation Partially Filled Flush to the Top Surface of Rafters G If Kingspan Kooltherm® K7 Pitched Roof Board is to be installed between and over rafters, the between rafter layer must be flush with the top of the rafters in order to prevent the risk of air movement between the two layers of insulation boards.

G Kingspan Kooltherm® K7 Pitched Roof Board may be laid

either across or down the line of the rafters and should be laid lightly butted and preferably break bonded. G All board joints running from eaves to ridge must occur

G If the between rafter layer of insulation is to be fitted from

over rafters.

the outside, install the insulation with the use of nailable sarking clips.

G Ensure continuity of insulation at the ridge of the roof G There is no necessity to tape board joints.

G Sarking clips should be the correct size so the insulation is

flush with the top surface of the rafters.

Over Rafter Insulation Without a Sarking Board G Lay 38 x 38 mm treated softwood counter–battens in line with the rafters.

G The nailable sarking clips are driven into the upper surface

of each rafter at one–metre intervals up the roof slope.

G The nailable sarking clips then support lengths of

G Secure the counter–battens to the rafters by fixing through

insulation, trimmed to suit rafter spacings, and placed between the rafters.

both the counter–battens and the insulation boards. Over Rafter Insulation With Slates Fixed Directly into a Sarking Board G Overlay the insulation boards with the sarking board.

G Insulation can be installed from the inside with the use of

timber ‘stop’ battens.

G Push insulation, trimmed to suit rafter spacings, between

G Secure the sarking board and insulation boards to the

the rafters so they are flush with the top surface of the rafters.

rafters by fixing through both the sarking board and the insulation.

G Side–nail treated softwood battens to the rafters to hold

Over Rafter Insulation with a Sarking Board and Tiles on Tiling Battens and Counter–Battens G Overlay the insulation boards with the sarking board, and lay 38 x 38 mm treated softwood counter–battens in line with the rafters.

the boards in place. Between Rafter Insulation Partially Filled Flush to the Bottom Surface of Rafters G Kingspan Kooltherm® K7 Pitched Roof Board installed between rafters must be flush with the bottom of the rafters in order to prevent the risk of air movement between the boards and the ceiling.

G Secure the counter–battens to the rafters by fixing through

the counter–batten, the sarking board and the insulation.

G Where the insulation between rafters is to be flush with the

Fixings for Over Rafter Insulation

G Approved fixings should be applied at centres appropriate

bottom of the rafters but does not fill the full rafter depth, install the insulation, trimmed to suit rafter spacings, with the aid of treated softwood battens nailed to the side of the rafters to provide a ‘stop’ above the insulation.

to the design of the roof and location of the building. Refer to: Ancon Building Products www.ancon.co.uk

+44 (0) 114 275 5224

G The battens should be in the appropriate position to

Helifix Limited www.helifix.co.uk

+44 (0) 20 8735 5222

G An additional restraint to the insulation boards will be

MAK Fasteners www.makfasteners.com

+353 (0) 1 451 99 00

Target Fixings Limited www.targetfixings.com

+44 (0) 1635 58 00 88

Tech Fasteners www.techfasteners.ie

+353 (0) 1 457 33 00

Wallfast Limited www.wallfast.co.uk

+44 (0) 23 9229 8443

ensure the insulation is flush with the bottom of the rafters. provided by Kingspan Kooltherm® K18 Insulated Plasterboard fixed to the inside face of the rafters.

Between Rafter Insulation Fully Filling the Depth of the Rafters G Where the insulation between rafters fully fills the rafter depth simply install the correct thickness of insulation, trimmed to suit rafter spacings, in such a manner that it is flush with the bottom and top of the rafters.

G If installing insulation from the outside this will necessitate

the use of sarking clips as described above.

Between Joist Insulation

Between Dwarf Wall Stud Insulation

G Kingspan Kooltherm® K7 Pitched Roof Board installed

between joists must be flush with the bottom of the joists in order to prevent the risk of air movement between the boards and the ceiling.

between studs must be flush with the inside surface of the studs and the plasterboard / insulated plasterboard wall finish in order to prevent the risk of air movement between the boards and the plasterboard / insulated plasterboard.

G Install the correct thickness of insulation, trimmed to suit

G Nail treated softwood battens to the side of studs to

rafter spacings, in such a manner that it is flush with the bottom of the joists.

provide a ‘stop’ and prevent the insulation boards moving within the stud cavity.

G The insulation must not be used as a weight bearing

G This ‘stop’ should be positioned such that the insulation

surface and, if the thickness of insulation exceeds the depth of the joists, batten out the joists such that they stand proud of the insulation.

boards finish flush with the inside surface of the studs.

G If the insulation boards are thicker than the timber studs fix

G Where there is no over joist insulation, and the loft is to be

appropriately sized treated softwood battens to the back of the studs and fix timber ‘stop’ straps diagonally to the battens in an appropriate pattern to hold the insulation boards in place. Each board must be restrained by a minimum of two diagonal straps.

used for storage, 9 mm (min.) plywood / chipboard / OSB should be mechanically fixed over the joists. Where pedestrian access is required, 18 mm (min.) plywood / chipboard / OSB should be installed instead.

G Insulation boards may be temporarily held in place

with large headed clout nails fixed through the ‘stop’ battens / straps.

Over Joist Insulation G If Kingspan Kooltherm® K7 Pitched Roof Board is to be

G The boards will be further restrained by the plasterboard /

installed between and over joists, the between joist layer must fully fill the joist depth, so that it is flush with the bottom and the top of the joists, in order to prevent the risk of air movement either above or below the insulation boards. It must not stand proud above the joists, otherwise a gap would be created over the joists themselves.

insulated plasterboard lining fixed to the inside face of the timbers.

Under Rafter / Joist or Inside Dwarf Wall Studs Insulation

G The insulation over joists must be tapered so it fits snugly

G Please refer to literature for Kingspan Kooltherm® K18

Insulated Plasterboard. This literature is available from the Kingspan Insulation Marketing Department or from the Kingspan Insulation website (see rear cover for details).

under rafters at the eaves.

G The insulation must not be used as a weight bearing

surface. If loft storage, or pedestrian access to the loft area, is necessary, it is recommended that one of the following options is adopted.

General

G Where the loft is to be used for storage, 9 mm (min.)

Fitting Insulation Boards Between Rafters / Joists / Studs G Measure the distance between the rafters / joists / studs before cutting the boards as spacings can vary.

plywood / chipboard / OSB should be mechanically fixed over the joists, with the over joist insulation layer laid on top. Where pedestrian access is required, a further layer of 18 mm (min.) plywood / chipboard / OSB should also be installed over the insulation boards.

G Ensure that insulation boards are lightly butted and that

there is a tight fit between the insulation and the rafters / joists / studs.

G A proprietary insulated loft storage, or pedestrian access,

G Fill all gaps with expanding urethane sealant.

board can be installed.

G Alternatively, treated softwood battens should be laid

perpendicular to the joists, at 600 mm (max.) centres, and fixed to them. The depth of the battens should be ≥ to that of the over joist insulation layer. The over joist insulation layer is installed between the battens following the guidance for between joist insulation (above) 18 mm (min.) plywood / chipboard / OSB should be mechanically fixed over the battens.

Sitework

Product Details The Facings Kingspan Kooltherm® K7 Pitched Roof Board is faced on both sides with a low emissivity composite foil, autohesively bonded to the insulation core during manufacture. This reflective, low emissivity surface improves the thermal resistance of any unventilated cavity adjacent to the board.

Surface Treatment G Kingspan Kooltherm® K7 Pitched Roof Board is not intended to provide an internal finish and should be underlined with a suitable building board. Cutting G Cutting should be carried out either by using a fine toothed saw, or by scoring with a sharp knife, snapping the board over a straight edge and then cutting the facing on the other side.

The Core The core of Kingspan Kooltherm® K7 Pitched Roof Board is a premium performance rigid thermoset modified resin insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

G Ensure accurate trimming to achieve close–butting joints

and continuity of insulation. Daily Working Practice

Standards and Approvals

G At the completion of each day’s work, or whenever work is

Kingspan Kooltherm® K7 Pitched Roof Board is manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

interrupted for extended periods of time, board edges and joints should be protected from inclement weather. Availability G Kingspan Kooltherm® K7 Pitched Roof Board is available through specialist insulation distributors and selected builders’ and roofing merchants throughout the UK and Ireland.

The use of Kingspan Kooltherm® K7 Pitched Roof Board, produced at Kingspan Insulation’s Pembridge manufacturing facility, is covered by BBA Certificate 94/3061, and that produced at Kingspan Insulation’s Castleblayney manufacturing facility by NSAI Agrément Certificate 09/0329.

Packaging and Storage G The polyethylene packaging of Kingspan Insulation products, which is recyclable, should not be considered adequate for outdoor protection. G Ideally, boards should be stored inside a building.

If, however, outdoor storage cannot be avoided the boards should be stacked clear of the ground and covered with an opaque polythene sheet or weatherproof tarpaulin. Boards that have been allowed to get wet should not be used.

Standard Dimensions Kingspan Kooltherm® K7 Pitched Roof Board is available in the following standard size:

Health and Safety G Kingspan Insulation products are chemically inert and safe to use. G

Nominal Dimension Length Width Insulant Thickness

A Safety Information Data Sheet for this product is available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety.

Please note that the reflective surfaces on this product are designed to enhance its thermal performance. As such, they will reflect light as well as heat, including ultraviolet light. Therefore, if this product is being installed during very bright or sunny weather, it is advisable to wear UV protective sunglasses or goggles, and if the skin is exposed for a significant period of time, to protect the bare skin with a UV block sun cream. The reflective facings used on this product can be slippery underfoot when wet. Therefore, it is recommended that any excess material should be contained to avoid a slip hazard. Warning – do not stand on or otherwise support your weight on this product unless it is fully supported by a load bearing surface. If nailable sarking clips are used, ensure care is taken to avoid skin and eye contact with any sharp edges.

Availability (m) (m) (mm)

2.4 1.2 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Compressive Strength The compressive strength of Kingspan Kooltherm® K7 Pitched Roof Board typically exceeds 125 kPa at 10% compression, when tested to BS / I.S. EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

Kingspan Kooltherm® K7 Pitched Roof Board, when subjected to the British Standard fire test specified in the table below, will achieve the following result shown, where the external finish of the pitched roof consists of slate or concrete roof tiles. For specifications with different external finishes please consult the roof finish manufacturer for their specific fire classification details.

Water Vapour Resistance Adjusted for the effect of board joints, the product typically achieves a resistance far greater than 100 MN.s/g, when tested in accordance with BS EN 12086: 1997 / I.S. EN 12086: 1998 (Thermal insulating products for building applications. Determination of water vapour transmission properties).

If correctly installed, Kingspan Kooltherm® K7 Pitched Roof Board can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Thermal Conductivity The boards achieve a thermal conductivity (λ–value) of: 0.023 W/m.K (insulant thickness 15−24 mm); 0.021 W/m.K (insulant thickness 25–44 mm); and 0.020 W/m.K (insulant thickness ≥ 45 mm). Thermal Resistance Thermal resistance (R–value) varies with thickness and is calculated by dividing the thickness of the board (expressed in metres) by its thermal conductivity. The resulting number is rounded down to the nearest 0.05 (m2.K/W).

The insulation core and facings used in the manufacture of Kingspan Kooltherm® K7 Pitched Roof Board resist attack by mould and microbial growth, and do not provide any food value to vermin.

Fire Performance Kingspan Kooltherm® K7 Pitched Roof Board is Class 1, as defined by BS 476–7: 1997 (Fire tests on building materials and structures. Method of test to determine the classification of the surface spread of flame of products). The rigid thermoset insulation core of Kingspan Kooltherm® K7 Pitched Roof Board is Class 0, as defined by the Building Regulations. The rigid thermoset insulation core of Kingspan Kooltherm® K7 Pitched Roof Board, when subjected to the British Standard fire test specified in the table below, has achieved the result shown. < 5% (Negligible smoke obscuration)

SAA rating

The λ–values and R–values detailed below are quoted in accordance with BS / I.S. EN 13166: 2008 (Thermal insulation products for buildings – Factory made products of phenolic foam (PF) – Specification).

The insulation core is resistant to short–term contact with petrol and with most dilute acids, alkalis and mineral oils. However, it is recommended that any spills be cleaned off fully before the boards are installed. Ensure that safe methods of cleaning are used, as recommended by suppliers of the spilt liquid. The insulation core is not resistant to some solvent–based adhesive systems, particularly those containing methyl ethyl ketone. Adhesives containing such solvents should not be used in association with this product. Damaged boards or boards that have been in contact with harsh solvents or acids should not be used.

Result

BS 476–3: 1958 (External fire membrane adopted exposure roof test)

Thermal Properties

Resistance to Solvents, Fungi & Rodents

BS 5111–1: 1974 (Smoke Obscuration)

Result

Further details of the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

Durability

Test

Insulant Thickness (mm)

Thermal Resistance (m2.K/W)

20 25 30 35 40 45 50 55 60 65 70 75 80 90 100 110 120 125 130 140 150

0.85 1.15 1.40 1.65 1.90 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.50 5.00 5.50 6.00 6.25 6.50 7.00 7.50

NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Literature & Samples Kingspan Insulation produces a comprehensive range of technical literature for specifiers, contractors, stockists and end users. The literature contains clear ‘user friendly’ advice on typical design; design considerations; thermal properties; sitework and product data. Available as a complete Design Manual or as individual product brochures, Kingspan Insulation technical literature is an essential specification tool. For copies please contact the Kingspan Insulation Marketing Department, or visit the Kingspan Insulation website, using the details below: UK

– Tel: +44 (0) 1544 387 384 – Fax: +44 (0) 1544 387 484 – email: literature@kingspaninsulation.co.uk – www.kingspaninsulation.co.uk/literature

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie – www.kingspaninsulation.ie/literature

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

This includes a computer–aided service designed to give fast, accurate technical advice. Simply phone the Kingspan Insulation Technical Service Department with your project specification. Calculations can be carried out to provide U–values, condensation / dew point risk, required insulation thicknesses etc… Thereafter any number of permutations can be provided to help you achieve your desired targets. The Kingspan Insulation Technical Service Department can also give general application advice and advice on design detailing and fixing etc... Site surveys are also undertaken as appropriate. The Kingspan Insulation British Technical Service Department operates under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U–value and Condensation Risk Calculations. Please contact the Kingspan Insulation Technical Service Department on the numbers below: UK

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd. reserves the right to amend product specifications without prior notice. Product thicknesses shown in this document should not be taken as being available ex–stock and reference should be made to the current Kingspan Insulation price–list or advice sought from Kingspan Insulation’s Customer Service Department (see above left). The information, technical details and fixing instructions etc. included in this literature are given in good faith and apply to uses described. Recommendations for use should be verified for suitability and compliance with actual requirements, specifications and any applicable laws and regulations. For other applications or conditions of use, Kingspan Insulation offers a Technical Advisory Service (see above), the advice of which should be sought for uses of Kingspan Insulation products that are not specifically described herein. Please check that your copy of this literature is current by contacting the Kingspan Insulation Marketing Department (see left).

Kingspan Insulation Ltd is a member of: The National Insulation Association (NIA)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Kingspan, Kooltherm, nilvent, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK, Ireland and other countries. All rights reserved. Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456. Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Insulation CI/Sfb

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Sixth Issue

Ln6

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March 2011

BREATHABLE MEMBRANE FOR UNVENTILATED PITCHED ROOFS AND TIMBER FRAME WALLS

G G

Waterproof – can be used as a temporary roof covering Non–tenting Airtight at normal building pressures Excellent water vapour permeability Strong – excellent nail tear and tensile strengths

Quiet under wind loading

Durable – heat and UV stable

Lightweight

Easy to handle and install

Ideal for new build

Low Energy – Low Carbon Buildings

Typical Constructions Pitched Roofs Horizontal Installation on a Continuous Substrate 150 / 100 / 75 mm lap between runs of Kingspan nilvent ® sealed (if required) with 75 mm wide acrylic double sided adhesive tape

Tiles / slates

Vertical Installation on a Discontinuous Substrate 100 mm lap between runs of Kingspan nilvent ® sealed by the placement of the counter–batten

Tile / slate batten

Tiles / slates

Tile / slate batten

Kingspan nilvent ® Kingspan nilvent ® Rafter

Insulated plasterboard e.g. Kingspan Kooltherm® K18 Insulated Plasterboard under rafters*/**

Rafter

38 x 38 mm counter–batten

Timber batten

Insulation between rafters e.g. Kingspan Kooltherm® K7 Pitched Roof Board

Insulated plasterboard e.g. Kingspan Kooltherm® K18 Insulated Plasterboard under rafters*/**

Figure 1a − Fully Filled Insulation Between Rafters – No Sarking Board – Battens & Tiles

150 / 100 / 75 mm lap between runs of Kingspan nilvent ® sealed (if required) with 75 mm wide acrylic double sided adhesive tape

Tiles / slates

38 x 38 mm counter–batten Unventilated air space above insulation Insulation partially filling the space between rafters e.g. Kingspan Kooltherm® K7 Pitched Roof Board

Figure 2a − Partially Filled Insulation Between Rafters – No Sarking Board – Battens & Tiles

Slates

150 / 100 / 75 mm lap between runs of Kingspan nilvent ® sealed (if required) with 75 mm wide acrylic double sided adhesive tape

Tile / slate batten

Rafter

Kingspan nilvent ® Kingspan nilvent ®

18 mm sarking board (if required) Unventilated air space 12.5 mm plasterboard Nailable sarking clips (if required)

Rafter

38 x 38 mm counter–batten Insulation over and between rafters e.g. Kingspan Kooltherm® K7 Pitched Roof Board

Insulated plasterboard e.g. Kingspan Kooltherm® K18 Insulated Plasterboard under rafters*/**

Figure 1b − Insulation Over Rafters – Sarking Board / No Sarking Board – Battens & Tiles

150 / 100 / 75 mm lap between runs of Kingspan nilvent ® sealed (if required) with 75 mm wide acrylic double sided adhesive tape

Tiles / slates

Insulated plasterboard e.g. Kingspan Kooltherm® K18 Insulated Plasterboard under rafters*/**

Insulation between rafters (partially or fully filling space) e.g. Kingspan Kooltherm® K7 Pitched Roof Board

Figure 1d − Insulation Between Rafters – Sarking Board & Natural Slates

150 / 100 / 75 mm lap between runs of Kingspan nilvent ® sealed (if required) with 75 mm wide acrylic double sided adhesive tape

Tile / slate batten

Slates

Kingspan nilvent ®

Kingspan nilvent ® Rafter

18 mm softwood sarking board

38 x 38 mm counter–batten 18 mm sarking board

Rafter Unventilated air space

Insulation between rafters (partially or fully filling space) e.g. Kingspan Kooltherm® K7 Pitched Roof Board

12.5 mm plasterboard* Nailable sarking clips (if required)

Figure 1c − Insulation Between Rafters – Sarking Board – Battens & Tiles

18 mm softwood sarking board Insulation over and between rafters e.g. Kingspan Kooltherm® K7 Pitched Roof Board

Figure 1e − Insulation Over Rafters – Sarking Board and Natural Slates

Timber Frame Walls Horizontal Installation on a Discontinuous Substrate 225 / 150 / 100 mm lap (depending on pitch) between runs of Kingspan nilvent ®

Tiles / slates

Horizontal Installation

Tile / slate batten

150 mm vertical lap at end of run of Kingspan nilvent ®

100 mm lap between horizontal runs of Kingspan nilvent ®

Kingspan nilvent ®

Rafter Timber batten Insulated plasterboard e.g. Kingspan Kooltherm® K18 Insulated Plasterboard under rafters*/**

Air space (10 mm min.) above insulation to provide a space to drape the Kingspan nilvent ® Insulation partially filling the space between rafters e.g. Kingspan Kooltherm® K7 Pitched Roof Board

Kingspan nilvent ®

Figure 3a − Partially Filled Insulation Between Rafters – No Sarking Board – Battens & Tiles

Figure 4a − External Masonry

Vertical Installation Insulation over and between rafters e.g. Kingspan Kooltherm® K7 Pitched Roof Board

Tiles / slates

Tile / slate batten 150 / 400 mm lap (depending on whether or not lap is taped) between vertical runs of Kingspan nilvent ®

Kingspan nilvent ® Unventilated air space

Rafter 12.5 mm plasterboard* 18 mm sarking board (if required) Air space (10 mm min.) above sarking board or insulation (if no sarking board) to provide a space to drape the Kingspan nilvent ®

225 / 150 / 100 mm lap (depending on pitch) between runs of Kingspan nilvent ® 38 x 38 mm counter–batten Nailable sarking clips (if required)

Kingspan nilvent ®

Figure 3b − Insulation Over Rafters – Sarking Board / No Sarking Board – Battens & Tiles

Insulation between rafters (partially or fully filling space) e.g. Kingspan Kooltherm® K7 Pitched Roof Board Air space (10 mm min.) above sarking board to provide a space to drape the Kingspan nilvent ®

Ventilated cladding e.g. timber cladding / 10 mm polymer rendered calcium silicate board / tiles on vertical battens

Tiles / slates Tile / slate batten

Rafter

Insulated plasterboard e.g. Kingspan Kooltherm® K18 Insulated Plasterboard under rafters*/**

Figure 5a − External Masonry

225 / 150 / 100 mm lap (depending on pitch) between runs of Kingspan nilvent ® 38 x 38 mm counter–batten

Kingspan nilvent ® 18 mm sarking board

Figure 3c − Insulation Between Rafters – Sarking Board – Battens & Tiles * The requirement for a vapour control layer and / or under the tile ventilation should be assessed to BS 5250: 2002. Vapour check plasterboard or a separate vapour control layer can be used as preferred. ** Kingspan Kooltherm® K18 Insulated Board contains an integral vapour control layer which, with appropriate detailing at joints, penetrations and wall perimeters, can increase the vapour resistance of the roof lining.

Figure 5b − Ventilated Cladding

150 mm lap (sealed by vertical battens) between vertical runs of Kingspan nilvent ®

Design Considerations Sustainability & Responsibility

Pitched Roofs

Horizontal Installation on a Continuous Substrate In these cases, the breathable sarking membrane is installed either under counter–battens, which provide a channel for water drainage (Figures 1a–1c), or, in situations with a sarking board under a natural slate roof, directly under the slates (as neither tile battens nor counter–battens are used) (Figures 1d and 1e).

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

The membrane is laid taut, and joints between runs of membrane are sealed with tape, if required.

Specification Clause

Vertical Installation on a Discontinuous Substrate Kingspan nilvent ® is installed in vertical runs, from eaves to eaves, in one length, under counter–battens (see Figure 2a). Installed in this way there will be no laps along the length of a run and laps between runs can be formed over a rafter, where counter–battens can secure them and make an airtight joint. The membrane should be laid taut, with no valleys between rafters.

Kingspan nilvent ® should be described in specifications as:– The breathable membrane shall be Kingspan nilvent ® comprising a laminated 3–layer polyolefin construction and shall be applied in accordance with the instructions issued by Kingspan Insulation Limited. Details also available in NBS Plus. NBS users should refer to clauses: H21 130, H30 350, H31 280, P10 320 (Standard and Intermediate) H21 20, H30 50, H31 55, P10 65 (Minor Works)

NB It is theoretically possible to install the membrane vertically with a valley between rafters, however this adds no technical benefit, will prove cumbersome, and has the disadvantage of allowing greater wind induced membrane movement (see section on ‘Wind Induced Membrane Movement’).

Horizontal Installation on a Discontinuous Substrate In situations where there is no continuous surface (see Figures 3a–3c), the breathable sarking membrane can be draped over the rafters or counter–battens, to provide a channel for water drainage. There should be a minimum 10 mm gap, between the membrane and the tile / slate batten, to afford a drainage channel for any penetrating rain. No counter–batten is required above the Kingspan nilvent ® as water can freely drain under the tile / slate battens. NB It is possible to have the membrane laid taut with counter–battens above. This is not as practical and incurs the cost penalty of extra counter–battens. It does, however, have the advantage of allowing reduced wind induced membrane movement (see section on ‘Wind Induced Membrane Movement’).

In these situations, it may not be practical to seal the laps between the runs of Kingspan nilvent ®, and the roof should be considered as being unsealed. General Kingspan nilvent ® meets all of the recommendations and requirements for underlays detailed in BS 5534: 2003 (Code of practice for slating and tiling (including shingles)) and NFRC Technical Bulletin 6.

For horizontal installation on a discontinuous substrate, counter–battens are not necessary to provide air movement. As long as Kingspan nilvent ® is draped such that there is a minimum 10 mm gap between the membrane and the tile / slate batten, the void so created will be sufficient.

Waterproofing If installed as per the instructions given in this document, Kingspan nilvent ® will give a watertight structure under normal weather conditions. Kingspan nilvent ® can be safely used, even in constructions with a large number of nail penetrations through the membrane, e.g. where natural slates are nailed directly into a sarking board.

With some roof coverings (e.g. pantiles, natural slates and cambered plain tiles), irregularities in their surfaces should allow sufficient natural ventilation to remove moisture from the space above the breathable membrane. With other roof coverings (e.g. sheet metal, interlocking tiles and artificial slates), provision of vents to encourage ventilation may be necessary.

Ventilation and Condensation Risk Most buildings contain air that is more humid than the air outside of that building. This humidity differential drives the moisture from the inside to the outside of a building’s structure. When the moisture is confronted with a relatively cold and impermeable layer it may condense. In pitched roofs, sarking felt can be such a layer.

Natural slates nailed through Kingspan nilvent ® into a sarking board, without counter–battens or slate battens, provide for enough air movement to disperse vapour because of the gaps created by their irregularity. Artificial slates may not be suitable for direct fixing to a sarking board, because the regularity of their shape may not provide for enough air movement to disperse vapour. It may be necessary to put counter–battens and slate battens in place under artificial slates, to provide an airspace for ventilation.

The traditional way of avoiding the risk of condensation in roofs, is to ventilate the moisture away, by introducing airflow directly above the insulation layer and below the sarking felt. Modern remedies for roofs include the use of breathable sarking membranes to replace sarking felt. Breathable sarking membranes negate the need for ventilation directly above the insulation layer. They do this because they have a low vapour resistance, which allows water vapour to escape through the breathable membrane to the outside of the building. Studies have shown that ventilation directly above an insulation layer can reduce its thermal efficiency.

Ventilation beneath the underlay is not required, and should be avoided. Airtightness & Sealed vs. Unsealed Constructions As we drive for buildings with lower and lower U–values, in order to save on wasteful heat losses, the component of heat lost from a building directly through its fabric becomes less, as a proportion of total heat lost. The proportion lost by accidental air–leakage becomes more significant. This air–leakage is not the same as deliberate ventilation. This accidental air–leakage into a roof can be lessened by sealing the roof construction to make it as airtight as possible.

BS 5250: 2002 (Code of practice for control of condensation in buildings) defines a breathable membrane as a membrane with a vapour resistance that must not exceed 0.60 MN.s/g. It further sub–defines breathable membranes into two types: HR breathable membranes have a vapour resistance > 0.25 MN.s/g; and LR breathable membranes have a vapour resistance that must not exceed 0.25 MN.s/g. Kingspan nilvent ® is an LR underlay, as defined by BS 5250: 2002, and has a vapour resistance of 0.17 MN.s/g.

Research has proven that a sealed roof approach yields a more energy efficient roof, as the impacts of incidental infiltrating cold air are negated. Therefore, if creating an unventilated roof, it is preferable to fully seal all joints in the breathable sarking membrane with tape. 75 mm wide acrylic double sided adhesive tape should be used for sealing joints in Kingspan nilvent ®.

There must be adequate provision, for vapour to disperse to atmosphere, outside of Kingspan nilvent ®. For horizontal installation on a continuous substrate and for vertical installation, Kingspan Insulation recommends the use of minimum 25 mm thick counter–battens over the breathable sarking membrane, to create an airspace, between the breathable membrane and the tile / slate battens, large enough to encourage air movement. They also allow the dust and debris from tiling and slating to slide down the slope and emerge at the eaves. The use of counter–battens also makes it easier to achieve interconnecting airspaces at interruptions to the main roof area – such as roof windows, chimneys, dormers, hips, and valleys.

However, there is limited point in carefully sealing a roof structure if the specified breathable membrane is not airtight. Kingspan nilvent ® is airtight at normal building pressures.

Design Considerations Timber Frame Walls Installation Kingspan nilvent ® may be installed in horizontal or vertical runs. In both cases, upper layers must overlap lower layers, so water is shed away from the ply, OSB, or insulation sheathing.

The ideal is to install Kingspan nilvent ® in a manner that is practical, and maximises the ability to achieve an airtight construction. The use of horizontal runs of Kingspan nilvent ® is by far the most practical method of installation, however, it is difficult to achieve airtightness unless the Kingspan nilvent ® is to be laid onto a continuous surface (see Figures 1a–1e). The taping of breathable membrane joints is considerably easier to achieve if this is the case.

The membrane is fixed taut, and joints between runs of membrane are sealed with tape, if required. Waterproofing Kingspan nilvent ® resists windblown rain and snow, and will protect the sheathing and timber frame from external moisture penetration. The product can be used as a temporary weather protection during construction, prior to the completion of external brickwork or cladding. This time period must be limited to two months, as Kingspan nilvent ® is not resistant to long term UV exposure.

The use of vertical runs of Kingspan nilvent ® is not as practical a method of installation as horizontal runs, however, it is easy to achieve airtightness as the laps between runs are sealed by the counter–battens that are installed over them (see Figure 2a).

Ventilation and Condensation Risk Condensation can be controlled, in timber frame walls, by ensuring there is a layer of high vapour resistance on the warm side of the insulation. The vapour resistance of the wall lining can be increased by the use of: a vapour check plasterboard*, the use of Kingspan Kooltherm® K18 Insulated Plasterboard, which contains an integral vapour control layer*, a layer of polythene sheeting*, or by the application of two coats of Gyproc Drywall Sealer, if required.

If the sealing of the roof is deemed to be unimportant, horizontal installation without sealing joints with tape will always be the most practical solution, regardless of whether it is laid onto a continuous or discontinuous surface (see Figures 1a–1e and 3a–3c). However, it must be stressed that these roof configurations are not recommended, on thermal efficiency grounds. Wind Induced Membrane Movement Wind blowing over a pitched roof generates positive and negative air pressures. These air pressures can cause underlays to move up and down. This effect is increased if the underlay is draped rather than installed taut. A roof underlay is required to reduce the wind loading on the tiles / slates, in order to stop them from becoming detached from the roof.

* With appropriate detailing at joints, penetrations and wall perimeters.

A breathable membrane with low vapour resistance, e.g. Kingspan nilvent ®, allows any moisture that does penetrate the construction to escape to the outside of the building. A condensation risk analysis should be carried out following the procedures set out in BS 5250: 2002 (Code of practice for the control of condensation in buildings). The Kingspan Insulation Technical Service Department (see rear cover) can provide this service.

Tile / Slate Damage Under extreme conditions, if the membrane stretches as it moves up and down, it can knock against the tiles / slates and cause damage. The upward deflection of the underlay, under maximum negative pressure, must be small enough to avoid contact with the underside of the tiles / slates.

Fire Stops Current Building Regulations / Standards should be considered with regard to the requirements for, and provision of, fire stops

Kingspan nilvent ® has mechanical properties sufficient to prevent this effect, given the wind uplift forces prevalent in the UK and Ireland.

Lightning Protection

Wind Noise Under extreme conditions, underlays can produce a noise, irritating to occupants, as they move up and down. Kingspan nilvent ® is quiet under wind loading.

Building designers should give consideration to the requirements of BS / I.S. EN 62305: 2006 (Protection against lightning).

Mansard Roofs / Walls Kingspan nilvent ® can be used for the construction of insulated tiled or slated mansard roofs / walls. Its installation procedures are identical to those for pitched roofs.

Sitework Pitched Roofs G Vertical laps between lengths of Kingspan nilvent ® should

Horizontal Installation on a Continuous Substrate G Start installation at the eaves.

be not less than 100 mm wide, and be positioned so as to coincide with a rafter position.

G Fit an eaves strip, of a UV–resistant material, to overhang

G These laps will be secured and sealed by the later fixing of

the eaves / fascia by 50–60 mm. G Lap the Kingspan nilvent , logo–up, over the eaves strip

the counter–battens.

G Avoid vertical laps over the same rafter position,

(if required), with the bottom edge of the Kingspan nilvent ® in line with the top of the fascia.

in successive runs of Kingspan nilvent ® .

G Kingspan nilvent should be laid taut.

NB In constructions with a sarking board under a slated roof with no counter–battens or slate battens, the vertical laps are taped with 75 mm wide acrylic double sided adhesive tape, and fixed in place with clout nails.

G Temporarily fix in place with clout nails, and cut to length

G Continue installation up the roof, in the same manner, to the

with a sharp knife. G The second run of Kingspan nilvent ® should lap over the

ridge. Install counter–battens (min. 25 mm deep) and tile / slate battens, in the usual manner, as proves necessary to fully fix the Kingspan nilvent ® in place, and to provide a support for moving up the roof.

top of the first, by the distance shown in the table below. Rafter pitch (degrees)

Minimum lap (mm)

12.5 – 14 15 – 34 ≥ 35

150 100 75

G Lap over the ridge by not less than 150 mm each side

(total overlap of 300 mm). G Complete the installation of counter–battens and tile / slate

G The printed tramlines on the top surface of Kingspan

nilvent ® indicate a distance of 150 mm.

battens over the whole area installed.

G Use 75 mm wide acrylic double sided adhesive tape to

NB In constructions with a sarking board under a slated roof with no counter–battens or slate battens, Kingspan nilvent ® is laid over the whole roof using roof ladders or similar for access prior to slating.

seal horizontal laps between runs of Kingspan nilvent ® (unless otherwise specified).

Vertical lap not less than 100 mm wide and positioned over a rafter Second run of Kingspan nilvent ® lapping over first by 150 / 100 / 75 mm (depending on pitch)

Kingspan nilvent ® lapped over eaves strip Horizontal lap joint taped unless otherwise specified

Eaves strip

Continuous substrate i.e. sarking board, insulation over rafters or insulation between and fully–filling rafters Line of rafter

Kingspan nilvent ® laid taut in horizontal runs

Figure 5a Eaves − Fully Supported Horizontal Installation

Sitework

Vertical lap not less than 100 mm wide and positioned over a rafter. Lap is taped Second run of Kingspan nilvent ® lapping over first by 150 / 100 / 75 mm (depending on pitch)

Kingspan nilvent ® lapped over eaves strip

Eaves strip

Horizontal lap joint taped unless otherwise specified

Sarking board forming continuous substrate

Line of rafter Kingspan nilvent ® laid taut in horizontal runs

Figure 5b Eaves – Fully Supported Horizontal Installation with Natural Slates

Kingspan nilvent ® lapped over both sides of ridge by 150 mm (min.)

Continuous substrate i.e. sarking board, insulation over rafters or insulation between and fully–filling rafters

Line of rafter

Kingspan nilvent ® laid taut in horizontal runs

Figure 5c Ridge – Fully Supported Horizontal Installation

Kingspan nilvent ® lapped over both sides of ridge by 150 mm (min.)

Sarking board forming continuous substrate

Line of rafter Kingspan nilvent ® laid taut in horizontal runs

Figure 5d Ridge – Fully Supported Horizontal Installation with Natural Slates

G Temporarily fix in place with clout nails, cut to length with a

Vertical Installation on a Discontinuous Substrate G For ease of installation, thread a wood or metal bar through the core of the Kingspan nilvent ® roll, and set it on bearers on the scaffold platform.

sharp knife, move sideways and repeat the process. G The second run of Kingspan nilvent ® should lap over the

first by not less than 100 mm, and be positioned so that the lap coincides with a rafter position.

G The leading edge of the Kingspan nilvent ® can then

G The printed tramlines on the top surface of Kingspan

be taken up and over the ridge, and down to the opposite eaves.

nilvent ® indicate a distance of 150 mm.

G Fit an eaves strip, of a UV–resistant material, to overhang

G These laps should be secured and sealed by the fixing of

the eaves / fascia by 50–60 mm.

counter–battens (min. 25 mm deep), as work progresses across the roof. Counter–battens should be fixed through to the rafters below, with fixings at a maximum of 300 mm centres.

G Lap the Kingspan nilvent ® , logo–up, over the eaves strip

(if required), with the bottom edge of the Kingspan nilvent ® in line with the top of the fascia. Kingspan nilvent ® should be laid such that it is taut in both horizontal and vertical directions.

G Continue installation across the roof in the same manner,

then install tile / slate battens over the whole area installed.

G Each run of Kingspan nilvent should be installed in a ®

NB Kingspan nilvent ® can be laid in a vertical orientation with a drape. However, counter–battens will still be required to give an effective seal. If sealing of the roof is not required, and counter–battens are not specified, it will prove a lot easier to install Kingspan nilvent ® horizontally with a drape (see page 10).

single piece from eaves to eaves.

Vertical lap not less than 100 mm wide and positioned over a rafter Kingspan nilvent ® laid taut in vertical runs

Kingspan nilvent ® laid over eaves strip

Eaves strip

Rafters forming a discontinuous substrate

Figure 6a Eaves – Vertical Installation

Single run of Kingspan nilvent ® taken from eaves to eaves over ridge

Kingspan nilvent ® laid taut in vertical runs

Rafters forming a discontinuous substrate

Figure 6b Ridge – Vertical Installation 9

Sitework

G It may not be practical to attempt to seal the laps between

Horizontal Installation on a Discontinuous Substrate G Start installation at the eaves.

the runs of Kingspan nilvent ® .

G Fit an eaves strip, of a UV–resistant material, to overhang

G Vertical laps between lengths of Kingspan nilvent ® should

the eaves / fascia by 50–60 mm.

be not less than 100 mm wide, and be positioned so as to coincide with a rafter.

G Lap the Kingspan nilvent , logo–up, over the eaves strip ®

G These laps will be secured and sealed by the later fixing

(if required), with the bottom edge of the Kingspan nilvent ® in line with the top of the fascia.

of the tile / slate battens.

G Kingspan nilvent and the eaves strip should be laid in

G Avoid vertical laps over the same rafter or counter–batten

position, in successive runs of Kingspan nilvent ® .

such a manner as to create a valley between rafters (see Figure 3a) or counter–battens (see Figures 3b–3c), to allow water drainage.

G Continue installation up the roof, in the same manner,

to the ridge.

G Temporarily fix in place with clout nails, and cut to length

G Install tile / slate battens, in the usual manner, as proves

with a sharp knife.

necessary to fully fix the Kingspan nilvent ® in place, and to provide a support for moving up the roof.

G The second run of Kingspan nilvent should lap over the ®

G Lap over the ridge by not less than 150 mm each side

top of the first, by the distance shown in the table below. Rafter pitch (degrees)

Minimum lap (mm)

12.5 – 14 15 – 34 ≥ 35

225 150 100

(total over lap of 300 mm). G Complete the installation of tile / slate battens over the

whole area installed. NB Kingspan nilvent ® can be laid taut without draping on a discontinuous substrate. In which case, install as in the method (shown on page 7) for horizontal installation on a continuous substrate. Effective taping of joints will prove extremely difficult.

G The printed tramlines on the top surface of Kingspan

nilvent ® indicate a distance of 150 mm. Vertical lap not less than 100 mm wide and positioned over a rafter

Second run of Kingspan nilvent ® lapping over first by 225 / 150 / 100 mm (depending on pitch)

Kingspan nilvent ® draped over timbers in horizontal runs Kingspan nilvent ® lapped over eaves strip

Horizontal lap joint Eaves strip

Rafters / counter–battens forming a discontinuous substrate

Figure 7a Eaves – Draped Horizontal Installation Kingspan nilvent ® lapped over both sides of ridge by 150 mm (min.)

Kingspan nilvent ® draped over timbers in horizontal runs Rafters / counter–battens forming a discontinuous substrate

Figure 7b Ridge – Draped Horizontal Installation

Abutments G At any abutment, chimney stack or similar roof penetration, apply 1.5 mm butyl rubber tape (e.g. glazing tape) to the abutment. G Turn up the Kingspan nilvent ® at least 50 mm under the

flashing, and secure it with a counter–batten / tiling batten, pressed firmly against the abutment, and fixed to the end rafter or trimmer. G In constructions with a sarking board under a slated

roof with no counter–battens or slate battens, the above method is followed without the batten to secure the membrane. Kingspan nilvent ® turned up by 50 mm (min.)

1.5 mm butyl rubber tape e.g. glazing tape

Flashing

Kingspan nilvent ® turned up by 50 mm (min.)

Continuous substrate i.e. sarking board, insulation over rafters or insulation between and fully–filling rafters

Kingspan nilvent ® laid taut in horizontal runs

Line of rafter

1.5 mm butyl rubber tape e.g. glazing tape

Figure 8a Abutments – Fully Supported Horizontal Installation

Kingspan nilvent ® turned up by 50 mm (min.)

Flashing

Kingspan nilvent ® laid taut in horizontal runs

Sarking board forming a continuous substrate

Line of rafter

Figure 8b Abutments – Fully Supported Horizontal Installation with Natural Slates

Kingspan nilvent ® laid taut in vertical runs

Kingspan nilvent ® turned up by 50 mm (min.)

Rafters forming discontinuous substrate

Flashing

Kingspan nilvent ® laid taut in vertical runs

Rafters forming discontinuous substrate

1.5 mm butyl rubber tape e.g. glazing tape

Figure 8c Abutments – Vertical Installation

Figure 8d Abutments – Draped Horizontal Installation

Sitework

Verges G Extend the Kingspan nilvent ® across the gable wall and overhang. G Turn it up at least 50 mm behind the fascia board, before

fixing with a batten to the flying rafter. G Where no counter–battens are used, extend the

Kingspan nilvent ® across the gable wall and overhang, and extend it to fully cover the undercloak.

Kingspan nilvent ® laid taut in horizontal runs

Fascia board

Fascia board Sarking board forming continuous substrate

Mortar infill

Mortar infill Undercloak

Continuous substrate i.e. sarking board, insulation over rafters or insulation between and fully–filling rafters

Kingspan nilvent ® laid taut in horizontal runs

Kingspan nilvent ® turned up by 50 mm (min.)

Kingspan nilvent ® fully covering the undercloak

Flying rafter

Figure 9b Verges – Fully Supported Horizontal Installation with Natural Slates

Figure 9a Verges – Fully Supported Horizontal Installation

Kingspan nilvent ® laid taut in vertical runs

Flying rafter

Kingspan nilvent ® draped over timbers in horizontal runs

Fascia board

Mortar infill

Fascia board

Mortar infill

Undercloak

Rafters / counter–battens forming discontinuous substrate

Rafters forming discontinuous substrate Kingspan nilvent ® turned up by 50 mm (min.)

Kingspan nilvent ® fully covering the undercloak

Flying rafter

Figure 9c Verges – Vertical Installation

Figure 9d Verges – Draped Horizontal Installation

Flying rafter

Hips G Fit the Kingspan nilvent ® to the hipped end of the roof before covering the main roof area. G Pull the Kingspan nilvent ® over the hip rafter and trim off

the surplus, leaving an overlap of at least 150 mm. Secure in the same manner as for the main roof area. G Once the hipped end is covered, move round and lay

Kingspan nilvent ® on the main roof area. G Fold over hip rafters, and trim off surplus material.

150 mm (min.) overlap on both sides of hip

Line of rafter

Kingspan nilvent ® laid taut in horizontal runs

Line of rafter

Kingspan nilvent ® laid taut in horizontal runs

Continuous substrate i.e. sarking board, insulation over rafters or insulation between and fully–filling rafters

Figure 10a Hips – Fully Supported Horizontal Installation

Figure 10b Hips – Fully Supported Horizontal Installation with Natural Slates

150 mm (min.) overlap on both sides of hip

Rafters forming discontinuous substrate

Sarking board forming continuous substrate

150 mm (min.) overlap on both sides of hip

Rafters / counter–battens forming a discontinuous substrate

Kingspan nilvent ® laid taut in vertical runs

10c Hips – Vertical Installation

Kingspan nilvent ® draped over timbers in horizontal runs

Figure 10d Hips – Draped Horizontal Installation

Valleys G Lay the Kingspan nilvent ® along the main roof area until you reach the valley. G Fold the Kingspan nilvent ® into the valley. Trim off surplus

leaving not less than 300 mm of material beyond the centre line of the valley. G Laid in this way there is no need to apply a separate strip

of Kingspan nilvent ® in the valley. G Cut counter–battens (if required) short of the valley, to

encourage air movement and allow run–off of any water penetrating the tiles / slates. G Kingspan nilvent ® forms an excellent underlay beneath

zinc, lead or GRP valley gutter liners.

Kingspan nilvent ® horizontal lapping over by 150 / 100 / 75 mm (depending on pitch)

Kingspan nilvent ® to extend 300 mm (min.) beyond valley centre line on both sides of valley

Counter–battens cut short of Kingspan nilvent ® laid taut valley to encourage air in horizontal runs movement and allow run–off

Line of rafter

Kingspan nilvent ® horizontal lapping over by 150 / 100 / 75 mm (depending on pitch)

Continuous substrate i.e. sarking board, insulation over rafters or insulation between and fully–filling rafters

Figure 11a Valleys – Fully Supported Horizontal Installation

Kingspan nilvent ® vertical lapping over rafters by 100 mm (min.)

Kingspan nilvent ® to extend 300 mm (min.) beyond valley centre line on both sides of valley

Rafters forming a discontinuous substrate

Kingspan nilvent ® laid taut in horizontal runs

Line of rafter

Kingspan nilvent ® to extend 300 mm (min.) beyond valley centre line on both sides of valley

Sarking board forming continuous substrate

Figure 11b Valleys – Fully Supported Horizontal Installation with Natural Slates

Kingspan nilvent ® horizontal lapping over by 225 / 150 / 100 mm (depending on pitch)

Counter–battens cut short of valley to encourage air movement and allow run–off

Kingspan nilvent ® to extend 300 mm (min.) beyond valley centre line on both sides of valley

Kingspan nilvent ® laid taut in vertical runs

Figure 11c Valleys – Vertical Installation

Kingspan nilvent ® draped over timbers in horizontal runs

Rafters / counter–battens forming a discontinuous substrate

Figure 11d Valleys – Draped Horizontal Installation

General Pipe Penetrations G For all pipe penetrations, Kingspan nilvent ® is star cut and dressed up the side of the penetrations. Use tape to seal the Kingspan nilvent ® around the pipe.

Rooflights G Please refer to the instructions provided by the rooflight manufacturer. In the absence of manufacturer’s information, cut and fit Kingspan nilvent ® neatly around the rooflight kerb, with an upstand of 50 mm.

Damage Repair G Whilst Kingspan nilvent ® is strong and durable in normal use, it may be damaged by careless handling.

G Seal the underlay to the kerb all round, using 1.5 mm butyl

rubber tape (e.g. glazing tape).

G The risk of damage may be increased if Kingspan

Slating and Tiling G Slating and tiling over Kingspan nilvent ® is exactly the same as on any other pitched roof except that, in some instances, the slate / tile battens (if required) are fixed to the previously applied counter–battens.

nilvent ® is left uncovered on the roof for longer than is necessary. G Any repairs are normally carried out with self–adhesive

tape before installation of the outer leaf / roof covering.

G It is, however, essential that slate or tiling rubble does not

Temporary Waterproof Covering

G It is often necessary for Kingspan nilvent ® to act as a

lie in contact with Kingspan nilvent ® as this may facilitate water penetration.

temporary, waterproof, wall or roof covering. G Kingspan nilvent ® is UV–resistant and can be safely

Timber Frame Walls

exposed on site for a period not exceeding 2 months. Fixing G Kingspan nilvent ® can be fixed to a timber frame wall either horizontally or vertically.

Cutting G Cutting should be carried out using a sharp knife.

G In both cases, it must be fixed so that upper layers overlap

Availability

G Kingspan nilvent ® is available through specialist insulation

the lower layers by a minimum of 100 mm, so that water is shed away from the sheathing.

distributors and selected builders’ and roofing merchants throughout the UK and Ireland.

G Kingspan nilvent ® must be secured at regular intervals

using either nails or staples to prevent damage by wind.

Packaging and Storage G The polyethylene packaging of Kingspan Insulation products, which is recyclable, should not be considered adequate for outdoor protection.

G Nails should comprise galvanized mild steel, austenitic

stainless steel, phosphor bronze, or silicon bronze. Staples should comprise austenitic stainless steel.

G Ideally, rolls should be stored inside a building. If, however,

G The positions of studs should be marked on the face of

the Kingspan nilvent ® , usually with tape, to enable fixing of wall ties or battens.

outdoor storage cannot be avoided, the rolls should be stored on their sides, on a clean dry surface, and protected from sunlight.

G It is essential that the lowest timbers in the wall are

protected by the breather membrane.

Health and Safety G Kingspan nilvent ® is chemically inert and safe to use.

Lapping and Jointing G Horizontal laps should be a minimum of 75 mm.

G A Safety Information Data Sheet for this product is

G For horizontal installation, vertical laps should be a

available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety.

minimum of 150 mm, with laps in adjacent strips of product staggered. G For vertical installation, the vertical laps should be

Please note that the white upper surface on this product is designed to enhance its performance. This surface will reflect light, including ultraviolet light. Therefore, if this membrane is being installed during very bright or sunny weather, it is advisable to wear UV protective sunglasses or goggles, and if the skin is exposed for a significant period of time, to protect the bare skin with a UV block sun cream.

150 mm minimum, if the laps are sealed with an acrylic double−sided adhesive tape or vertical battens applied to the outside of the membrane, or 400 mm min., if the laps are unsealed.

Warning – do not stand on or otherwise support your weight on this product unless it is fully supported by a load–bearing surface.

Product Details Composition

Air Permeability

Kingspan nilvent ® comprises a laminated, 3–layer polyolefin construction. The top layer provides protection from UV and mechanical damage. The middle layer is the functional layer. The bottom layer provides abrasion resistance. Kingspan nilvent ® has a light grey upper surface, printed with the Kingspan nilvent ® logo, and a dark grey lower surface.

Kingspan nilvent ® is airtight, when tested at normal building pressures, i.e. 50 Pa pressure difference.

Tensile Strength Kingspan nilvent ® achieves an unaged tensile strength of 240 N / 50 mm in the longitudinal direction, and 180 N / 50 mm in the transverse direction, when tested in accordance with BS EN 12311–1: 2000 (Flexible sheets for waterproofing. Determination of tensile properties. Bitumen sheets for roof waterproofing).

Standards and Approvals Kingspan nilvent ® is manufactured to the highest standards under a management system certified to EN ISO 9001: 2008 (Quality management systems. Requirements).

Nail Tear Strength

Its use is covered by BBA Certificate 10/4757.

Kingspan nilvent ® achieves a nail tear strength of 120 N in the longitudinal direction, and 140 N in the transverse direction, when tested in accordance with BS EN 12310–1: 2000 (Flexible sheets for waterproofing. Determination of resistance to tearing (nail shanks). Bitumen sheets for roof waterproofing).

Standard Dimensions UV / Heat Ageing

Kingspan nilvent ® is available in the following dimensions: Nominal Dimension

Availability

Roll Length (m) Roll Width (m) Thickness (mm) Area per Roll (m2) Weight (kg/m2) Weight per Roll (kg)

50 1.5 0.60 75 0.14 12

Kingspan nilvent ® maintains its W1 classification for liquid water penetration, and its tensile strength is only reduced to 220 N / 50 mm in the longitudinal direction, and 160 N / 50 mm in the transverse direction, when aged in accordance with BS EN 1297: 2004 (Flexible sheets for waterproofing. Bitumen, plastic and rubber sheets for roofing. Method for artificial ageing by long term exposure to the combination of UV radiation, elevated temeprature and water) and BS EN 1296: 2001 (Flexible sheets for waterproofing. Bitumen, plastic and rubber sheets for roofing. Method of artificial aging by long term exposure to elevated temperature).

Water Vapour Resistance Kingspan nilvent ® is an LR underlay, as defined by BS 5250: 2002 (Code of practice for control of condensation in buildings), and achieves a resistance of 0.17 MN.s/g when tested in accordance with BS 3177: 1959 (1995) (Method for determining the permeability to water vapour of flexible sheet materials used for packaging).

This means that Kingspan nilvent ® maintains adequate functional performance after continuous exposure to UV–light at 50°C for 336 hours, and then continuous exposure to a temperature of 70°C for 90 days.

Liquid Water Penetration Resistance

Kingspan nilvent ® can be left exposed on a roof or wall for a period of up to 2 months, after which time is must be fully protected from UV–light.

Kingspan nilvent is classified as W1, when tested, unaged, in accordance with BS EN 1928: 2000 – Method A (Flexible sheets for waterproofing. Bitumen, plastic and rubber sheets for waterproofing. Determination of watertightness). W1 is the best possible classification. ®

Kingspan nilvent ® is non–tenting, and can be fully or partially supported.

Kingspan Insulation Wind Noise Sensitivity

Insulation Product Benefits

Kingspan nilvent ® is quiet when exposed to the wind uplift forces prevalent in the UK and Ireland.

Kingspan Kooltherm® K–range Products G With a thermal conductivity of 0.020–0.023 W/m.K these are the most thermally efficient insulation products commonly used.

Resistance to Solvents, Fungi & Rodents

G The thinnest commonly used insulation products for any

Kingspan nilvent ® resists attack by mould and fungus growth, and will not encourage insect attack.

specific U–value. G Rigid thermoset insulation core is Class 0, as defined

Kingspan nilvent ® is resistant to most organic and inorganic chemicals, including acids, alkalis and salts. Direct contact with wet solvents causes temporary expansion and a slight loss of physical properties. Kingspan nilvent ® is not affected by the timber preservatives and treatments traditionally used in the UK and Ireland to protect timber from rotting, even when they are not fully dried out.

by the Building Regulations in England, Wales & Ireland, and Low Risk, as defined by the Building Standards in Scotland. G Rigid thermoset insulation core achieves the best possible

rating of < 5% smoke obscuration when tested to BS 5111: Part 1: 1974. G Manufactured with a blowing agent that has zero Ozone

Limiting Temperatures

Depletion Potential (ODP) and low Global Warming Potential (GWP).

Kingspan nilvent retains its strength and flexibility at temperatures down to –40ºC and up to +80ºC. ®

Kingspan Therma™ Range Products G With a thermal conductivity of 0.022–0.027 W/m.K these are amongst the more thermally efficient insulation products commonly used. G Each product achieves the required fire performance for its

intended application. G Manufactured with a blowing agent that has zero Ozone

Depletion Potential (ODP) and low Global Warming Potential (GWP). Kingspan Styrozone® Range Products G Rigid extruded polystyrene insulation (XPS) has the necessary compressive strength to make it the product of choice for specialist applications such as heavy duty flooring, car park decks and inverted roofing. G Each product achieves the required fire performance for its

intended application. G Manufactured with a blowing agent that has zero Ozone

Depletion Potential (ODP). All Products G Their closed cell structure resists both moisture and water vapour ingress – a problem which can be associated with open cell materials such as mineral fibre and which can result in reduced thermal performance. G Unaffected by air infiltration – a problem that can be

experienced with mineral fibre and which can reduce thermal performance. G Safe and easy to install – non–fibrous. G If installed correctly, can provide reliable long term thermal

performance over the lifetime of the building.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 384 – Fax: +44 (0) 1544 387 484 – email: literature@kingspaninsulation.co.uk – www.kingspaninsulation.co.uk/literature

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie – www.kingspaninsulation.ie/literature

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd is a member of: The National Insulation Association (NIA)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Kingspan, Kooltherm, nilvent, Styrozone and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK, Ireland and other countries. All rights reserved. ™ Therma is a Trademark of the Kingspan Group plc. Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456. Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Flat Roof Insulation

Insulation CI/Sfb

(27.9)

Sixth Issue

Rn7

March 2011

LPC/FM Systems TAPERED INSULATION TO ENHANCE WATER DRAINAGE FROM FLAT ROOFS G

G G G G

G G G G G G G G

LPS 1181: Part 1 Certificate No. 388b

High performance rigid thermoset insulation – thermal conductivities as low as 0.022 W/m.K LPCB approved to LPS 1181: Part 1 FM approved for Class 1 steel deck roof assemblies Insulation and drainage in one Compatible with most waterproofing and green roof systems Provides a practical alternative to screeding, structural falls or firrings Load bearing implications for an existing structure can be minimal Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP and low GWP Tapered insulation U−values calculated according to Annex C of BS EN ISO 6946: 2007

Class 1 Roof Construction

Low Energy – Low Carbon Buildings

LPC/FM Systems

Introduction to The Problem There are many critical factors which must be taken into consideration when designing a flat roof construction. Two of these factors, insulation and rainwater run–off, can be addressed with one product range: Thermataper® LPC/FM from Kingspan Insulation Limited.

Quicker Kingspan Thermataper® LPC/FM Systems avoid a wet trade and do not need time to dry out, saving time in the scheduling of a construction project. It has been estimated that screed to falls systems may require up to 195 days, or more, to dry.

Many flat roof failures can be traced to the inability of the roof to shed rainwater from its surface, leading to the formation of water ponds. Ponding of rainwater can decrease the design life of a roof by subjecting its waterproofing membrane to attack from thermal stress and growth of plants, moss and algae.

Lighter Kingspan Thermataper® LPC/FM Systems are also a lighter weight alternative to screeding and they do not present the risk of an overloaded structure due to excessive screed depths. Kingspan Thermataper® LPC/FM Systems can be as little as 1.5%, or less, of the weight of a solution using screed to falls with a flat insulation board.

Excessive ponding can also increase roof loading, causing further deflection of the deck, which may add to the problem of drainage. The most effective solution is to eliminate ponding by designing an adequate fall into the roof.

Less Waste Pre−mitred boards reduce waste from the installation process. Insulation boards are cut in half by Kingspan Insulation in its factory to make mitred hip and valley boards. These are single picked to match the tapered system design so as to reduce waste from cutting hips and valleys on site. Both (hip and valley) halves of the cut board are used and the only waste is the dust generated by sawing. Whereas, when boards are cut on site, up to 50% of the cut boards could be wasted, depending on the particulars of the specific board layout and falls design.

The Solution Kingspan Thermataper® LPC/FM Systems have been developed to help solve these problems. Kingspan Thermataper® LPC/FM Systems comprise tapered insulation boards, flat packer boards, pre−mitred hip and valley boards and the market’s leading tapered roofing design service. Kingspan Thermataper® LPC/FM products are designed: for use under most waterproofing membranes; to provide required roof falls; and to provide insulation to meet the requirements of Building Regulations / Standards.

In the Old Days – Two Full Tapered Boards Cut in Half on Site Left hand valley board

The Benefits Simpler On new roofs, the use of a Kingspan Thermataper® LPC/FM System eliminates the need to incorporate a fall into the design of the roof deck. On existing roofs, a Kingspan Thermataper® LPC/FM System and a new waterproofing membrane can be laid on top of the original waterproofing. This eliminates the need for stripping down the roof to deck level, and the provision of a vapour control layer may not be required.

Right hand valley board

Right hand hip board

In the Old Days – Up to 50% of Material Sent to Landfill

NB The existing insulation / substrate and waterproofing must be sound, in order to provide a satisfactory surface for the Kingspan Thermataper® LPC/FM System, and the risk of interstitial condensation must be fully assessed.

Unwanted half board to landfill

Cheaper Using a Kingspan Thermataper® LPC/FM System to achieve a U−value of 0.16 W/m2.K could be up to, or over, 26% cheaper than using alternative methods (e.g. timber firrings or screed) to create a fall in a flat roof for rainwater drainage purposes.

Required full valley piece made up of two half boards

Unwanted half board to landfill

The New Order – Landfill from this Source Completely Avoided

Full valley piece used on one site

Full hip piece used on a different site

Figure 1 How Kingspan Pre−Mitred Tapered Flat Roof Insulation Boards Save Waste from Going to Landfill

Typical Tapered Roofing Design for Kingspan Thermataper速 TT47 LPC/FM 26.3 m

BLH

BRH 1

BRH CLH

BLH CRH

CRH DLH

DRH ELH

FLH 12.95 m

S BRH BLV

FRH

CRV 4

FLH

CLH DRH

DLV

FRV

DRH

FRH

FLV

DLH

ELH 4

FLH ARH

6 6

CLH

DLH

ERH ELV

ELH ERH

ERV

BLH CRH

DRV

FRH

CLV

5 FLH

1 BRV

ELH

FRH 1

DLH ERH

ERH

CLH DRH

ALH

5 2

CRH

BLH

5 26.6 m

BRH

1 2

S 1

145 mm infill

FRH

FLH 5

FRH

FLH

ELH

ERH 4

ERH

ELH

DLH

DRH 3

DRH

DLH

CLH

CRH 2

CRH

CLH

BLH

BRH 1

BLH

BRH

Section 1:60

85 mm

65 mm

45 mm

4 125 mm

105 mm

145 mm

165 mm 145 mm Infill

Packer Board

1.2 m Type B

2.4 m Type C

3.6 m Type D

4.8 m Type E

Figure 2 3

6.0 m Type F

7.2 m Type A

Flat Boards

LPC/FM System Design Considerations Design Services Efficiency by Design Kingspan Thermataper® LPC/FM Systems come with a supporting design service. This ensures that the most cost−effective solution for a roof is identified and that the end result is a tapered system design which meets the roof’s rainwater run–off and insulation requirements.

Condensation Risk Analysis Included in the design service is the calculation of condensation risk in accordance with BS 5250: 2002 (Code of practice for control of condensation in buildings). This ensures that any predicted dew point is above the vapour control layer at the point of minimum thickness of the Kingspan Thermataper® LPC/FM System, whilst also ensuring any condensation risk is within the limits given in BS 5250: 2002.

Board Layout & Falls Design The design of the board layout and falls of a successful Kingspan Thermataper® LPC/FM System must take several factors into account:

Calculation of U−values U−values for Kingspan Thermataper® LPC/FM Systems are calculated, under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U–value and Condensation Risk Calculations, in accordance with Annex C of BS EN ISO 6946: 2007 (Building components and building elements – Thermal resistance and thermal transmittance – Calculation method). Annex C outlines the calculation procedure to determine the total thermal transmittance of tapered insulation – termed the ‘Annex C U–value’.

G the position of the roof outlets;

G the extent of water run–off required;

APPROVAL INSPECTION TESTING CERTIFICATION CERTIFICATE No 06/4372

G the dimensions of the roof;

G the presence of any existing falls or steps on the roof; and G the location and dimensions of permanent projections

such as roof lights, vents etc., and perimeter restrictions. Normally, for new roofs, this information can be most simply acquired from an architect’s drawing. It is strongly recommended that architect’s drawings are submitted electronically by email but they can be supplied in any of the following ways:

Typical U–values

G electronically by email;

Kingspan Thermataper® LPC/FM Systems can easily meet the U–values required for compliance with Building Regulations / Standards. A detailed U–value calculation together with condensation risk analysis should be completed for each individual project. Please contact the Kingspan Insulation Tapered Roofing Department (see rear cover) for assistance.

G electronically on a CD, DVD or memory stick by post; or G as a hard copy drawing by post.

For email and postal addresses, see rear cover. On existing British roofs, a free survey of the roof will be carried out by one of our experienced surveyors to collect the required information.

Linear Thermal Bridging

The board layout and falls of even the most complex tapered system can be designed quickly and effectively, ready for client approval. The design will illustrate the required direction of drainage and will also take into account U–value requirements, condensation risk and minimum / maximum rise restrictions. Client amendments or revisions can be easily incorporated. Wind uplift and corresponding restraint requirements for insulation boards can be calculated if necessary. This service operates under a quality control system certified to BS EN ISO 9001: 2008 (Quality management systems. Requirements) in Britain.

Reasonable provision must be made to limit the effects of cold bridging. The design should ensure that roof–light or ventilator kerbs etc. are always insulated with the same thickness of Kingspan Thermataper® TT46 LPC/FM or Kingspan Thermataper® TT47 LPC/FM as the general roof area. A 25 mm thick Kingspan Thermaroof® TR27 LPC/FM upstand should be used around the perimeter of the roof on the internal façade of parapets. A minimum distance of 300 mm should be maintained between the top of the insulation upstand and the bottom of the horizontal roof insulation. Wall insulation should also be carried up into parapets as high as the flat roof insulation upstand. Please contact the Kingspan Insulation Technical Service Department (see rear cover) for further advice.

Once the final design has been accepted by the client and the Kingspan Thermataper® LPC/FM System is ordered, a working drawing will be produced on waterproof paper. This drawing will clearly set out the fall pitch, fall direction and fixing of each board type, and will clearly match the markings on the boards. Installation of Kingspan Thermataper® LPC/FM Systems is simple using these easy to follow drawings and, to facilitate installation, each board type is packed separately in labelled shrink wrapped packs. 4

Environmental Impact & Responsible Sourcing

Spanning on Metal Decks

Green Guide Rating Ecoprofiles, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, have been created for Kingspan Thermataper® TT46 LPC/FM and Kingspan Thermataper® TT47 LPC/FM produced at Kingspan Insulation’s British manufacturing facilities. The BRE has assigned the products a 2008 Green Guide Summary Rating of A+ and A respectively.

The designer’s attention is drawn to the requirement that insulation boards are of the minimum thicknesses shown in the table below, when used over metal decks with trough openings as shown.

Environmental Profiles Scheme Certificate Number ENP 409

Green roof systems are a specialist design area. When designing a loose–laid insulated green roof assembly consideration needs to be given to the following. Green roof systems are required to have a minimum dry weight of 80 kg/m2 to ballast the insulation boards beneath them. However, the total required dry weight will depend upon wind uplift, which in turn will vary with the geographical location of the building, local topography, and the height and width of the roof concerned. The necessity for any additional dry weight should be assessed in accordance with BS 6399−2: 1997 (Loading for Buildings. Code of practice for wind loads) or BS / I.S. EN 1991−1−4: 2005 (National Annex to Eurocode 1 Actions on structures. General Actions. Wind Actions).

When installing a loose–laid insulated green roof assembly, any insulation must be immediately over–laid with the green roof system, which must meet all of the requirements outlined above.

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

Wind Loading

Where these requirements cannot be ensured, the insulation must be mechanically fixed (see Sitework). For further information please contact the Kingspan Insulation Technical Service Department (see rear cover).

Wind loadings should be assessed in accordance with BS 6399−2: 1997 (Loading for Buildings. Code of practice for wind loads) or BS / I.S. EN 1991−1−4: 2005 (National Annex to Eurocode 1 Actions on Structures. General Actions. Wind Actions) taking into account: G

orientation of the building;

wind speed;

aspect (e.g. on a hill side); and

topographical value of the surrounding area.

25 30 35 40 45 50 55 60

Kingspan Thermataper® TT46 LPC/FM and Kingspan Thermataper® TT47 LPC/FM are suitable for use under most green roof systems.

length / width / height of the building;

Minimum Insulant Thickness (mm)

≤ 75 76–100 101–125 126–150 151–175 176–200 201–225 225–250

Green Roofs

Responsible Sourcing Kingspan Thermataper® TT46 LPC/FM and Kingspan Thermataper® TT47 LPC/FM are manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer components of the products are also manufactured under management systems certified to EN ISO 14001: 2004.

Trough Opening (mm)

Lightning Protection Building designers should give consideration to the requirements of BS / I.S. EN 62305: 2006 (Protection against lightning).

Thermataper LPC/FM Systems 速

Project Gallery

Project: Location: Use: Specifier: Product:

Century Wharf Cardiff Bay Appartments White Young Green Kingspan Thermataper速 TT46 LPC/FM

Project: Location: Use: Specifier: Product:

Walthamstow Academy London Education Howarth Litchfield Partnership Kingspan Thermataper速 TT46 LPC/FM

Project: Location: Use: Specifier: Product:

St Mary’s Garden Hall London Community Centre White Young Green Kingspan Thermataper® TT47 LPC/FM

Project: RSPB Building Location: Rainham Marshes, Essex Use: Environment & Education Centre Specifier: Heyningen and Haward Product: Kingspan Thermataper® TT47 LPC/FM

TT46 LPC/FM Design Considerations Typical Constructions Metal Deck

All U−values shall be calculated in accordance with Annex C of BS EN ISO 6946: 2007 (Building components and building elements – Thermal resistance and thermal transmittance – Calculation method).

DPC to drain internally or externally as specified

Damp proof course (DPC) Single–ply non–bituminous membrane

NBS Specifications

Telescopic tube fastener

Details also available in NBS Plus. NBS users should refer to clause(s): J42 420, J42 430 (Standard and Intermediate) J42 10 (Minor Works)

Kingspan Thermataper TT46 LPC/FM

Roof Waterproofing Metal deck Vapour control layer (not required if metal deck is sealed)

Kingspan Kooltherm K8 Cavity Board taken up as high as the flat roof insulation upstand ®

Kingspan Thermataper® TT46 LPC/FM is suitable for use with most mechanically fixed single–ply waterproofing membranes.

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Please note: Kingspan Thermataper® TT46 LPC/FM is not suitable for use with bitumen based built–up waterproofing systems or mastic asphalt.

Figure 3

Dense Concrete Deck Damp proof course (DPC)

Water Vapour Control

DPC to drain internally or externally as specified

Kingspan Thermataper® TT46 LPC/FM should be installed over a separate vapour control layer, in new build roofs, unless it is being used in conjunction with a sealed metal deck. Regardless of the deck type it is recommended that a condensation risk analysis is carried out for every project.

Single–ply non–bituminous membrane Telescopic tube fastener Kingspan Thermataper® TT46 LPC/FM

For refurbishment projects, involving the addition of insulation to existing insulated flat roofs, it is imperative that a U–value calculation and condensation risk analysis is carried out for every project, in order to ensure that the correct thickness of insulation is installed to achieve the required thermal performance, whilst avoiding interstitial condensation.

12.5 mm plasterboard fixed to 25 x 50 mm timber battens at 600 mm centres 150 mm concrete deck Vapour control layer

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

In refurbishment projects, where Kingspan Thermataper® TT46 LPC/FM is to be installed over an existing bituminous waterproofing membrane, the membrane can be used as a vapour control layer, as long as it is in a good water tight condition. Where this is not the case, a separate vapour control layer should be installed.

Figure 4

Specification Clause Kingspan Thermataper® TT46 LPC/FM should be described in specifications as:–

A minimum separate vapour control layer should consist of a 1000 gauge (250 micron) polythene sheet, with all joints lapped and then sealed with double sided self adhesive tape.

The roof insulation shall be Kingspan Thermataper® TT46 LPC/FM ____mm thick: comprising a high performance rigid thermoset insulation core faced on both sides with a low emissivity composite foil facing. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); in accordance with the requirements of BS 4841–4; under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them.

Roof Loading / Traffic Kingspan Thermataper® TT46 LPC/FM is suitable for use on access roof decks subject to limited foot traffic. Where inappropriate foot traffic is liable to occur it is recommended that the roof surface is protected by specially constructed walk–ways. For further advice on the acceptability of specific foot traffic regimes, please contact the Kingspan Insulation Technical Service Department (see rear cover). 8

TT46 LPC/FM Sitework Laying pattern

Installing over Metal Decks

G The working drawings supplied by the Kingspan Insulation

G Where an FM or LPCB approved construction is required,

Tapered Roofing Department will indicate the area of the roof to be covered, the minimum insulation level, fall direction and pitch of the tapered system.

please refer to ‘LPCB & FM Certification’ on page 13. G Metal decks should be level, clean, dry, and without large

projections, steps or gaps.

G The location of each board type will be indicated clearly

G If using a sealed metal deck there is no requirement for a

on the drawing and each pack will contain one board type only.

separate vapour control layer. G If the metal deck is not sealed the vapour control layer

G Ridges, hips and valleys will be marked on the drawings,

should be loose–laid. G Where one run of the specified vapour control layer laps

together with the setting out commencement points for laying of the boards.

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G In situations where two or more layers of insulation are

G Turn up the vapour control layer at the edge of the roof

required, all layers should be installed in the same manner, as detailed in the following sections. However, refer to ‘Mechanical Fixings’ for guidance on the number of fixings to be used in each layer.

to a height appropriate to the specified waterproofing membrane. G Boards of Kingspan Thermataper® TT46 LPC/FM should

G In all cases, the layers should be horizontally offset relative

be secured to the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixing’).

to each other so that, as far as possible, the board joints in any two adjacent layers do not coincide with each other (see Figures 5 and 6).

G Insulation boards should, wherever possible, be laid

break–bonded and with joints lightly butted. There should be no gaps at abutments. G Roof–light or ventilator kerbs etc. should always insulated

First and third, if required, packer board layer

to the same standard as the general roof area i.e. to the Annex C U–value of the tapered system. G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

upstand should be used around the perimeter of the roof on the internal façade of parapets. G A minimum distance of 300 mm should be maintained

between the top of the insulation upstand and the bottom of the horizontal roof insulation. G The waterproofing membrane is also mechanically fixed in

accordance with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

Second and fourth packer board layer, if required, offset relative to first and third

Figure 5 Offsetting of Multiple Packer Board Layers

Upper–most packer board layer

Tapered boards offset relative to upper–most packer board layer

Figure 6 Offsetting of Tapered Boards Relative to Packer Boards 9

TT46 LPC/FM Sitework Installing over Concrete Decks G Concrete decks should be level, clean, dry, and without

G Roof–light or ventilator kerbs etc. should always insulated

large projections, steps or gaps.

to the same standard as the general roof area i.e. to the Annex C U–value of the tapered system.

G The vapour control layer should be loose–laid over the

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM

deck.

G Where one run of the specified vapour control layer laps

upstand should be used around the perimeter of the roof on the internal façade of parapets.

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G A minimum distance of 300 mm should be maintained

G Turn up the vapour control layer at the edge of the roof

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

to a height appropriate to the specified waterproofing membrane.

G The waterproofing membrane is also mechanically fixed in

G Boards of Kingspan Thermataper® TT46 LPC/FM should

accordance with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

be secured to the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixing’).

G Insulation boards should, wherever possible, be laid

break–bonded and with joints lightly butted. There should be no gaps at abutments.

Installing over Existing Flat Roofs

G Roof–light or ventilator kerbs etc. should always insulated

G The existing waterproofing membrane surface should be

to the same standard as the general roof area i.e. to the Annex C U–value of the tapered system.

clean, dry, without large projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

upstand should be used around the perimeter of the roof on the internal façade of parapets.

G Where the existing waterproofing membrane is not fit for

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

G Where one run of the specified vapour control layer laps

accordance with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

G Turn up the vapour control layer at the edge of the roof to

purpose as a vapour control layer, a separate vapour control layer should be loose–laid over it.

G A minimum distance of 300 mm should be maintained

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G The waterproofing membrane is also mechanically fixed in

a height appropriate to the specified new waterproofing membrane. G Boards of Kingspan Thermataper® TT46 LPC/FM should

Installing over Plywood Decks

be secured to the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixing’).

G Timber decks should be level, clean, dry, and without large

G Insulation boards should, wherever possible, be laid

projections, steps or gaps.

G The vapour control layer should be temporarily stapled or

break–bonded and with joints lightly butted. There should be no gaps at abutments.

nailed to the deck.

G Roof–light or ventilator kerbs etc. should always insulated

G Where one run of the specified vapour control layer laps

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

to the same standard as the general roof area i.e. to the Annex C U–value of the tapered system.

G Turn up the vapour control layer at the edge of the roof

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

to a height appropriate to the specified waterproofing membrane.

upstand should be used around the perimeter of the roof on the internal façade of parapets.

G Boards of Kingspan Thermataper® TT46 LPC/FM should

G A minimum distance of 300 mm should be maintained

be secured to the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixing’).

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

G Insulation boards should, wherever possible, be laid

G The waterproofing membrane is installed in accordance

break–bonded and with joints lightly butted. There should be no gaps at abutments.

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

G Joints between insulation boards should not coincide with

those between the plywood sheets.

Mechanical Fixings

General

G The number of mechanical fixings required to fix Kingspan

Following Trades G The roof must be adequately protected when building works are being carried out on or over the roof surface. This is best achieved by close boarding. The completed roof must not be used for storage of heavy building components such as bricks or air conditioning equipment.

Thermataper TT46 LPC/FM will vary with the geographical location of the building, the local topography, and the height and width of the roof concerned along with the deck type. ®

G A minimum of 4 fixings are required to secure boards of

Kingspan Thermataper® TT46 LPC/FM to the deck.

G The requirement for additional fixings should be assessed

Cutting G Cutting should be carried out either by using a fine toothed saw, or by scoring with a sharp knife, snapping the board over a straight edge and then cutting the facing on the other side.

G Mechanical fixings must be arranged in an even pattern. G Fasteners at insulation board edges must be located > 50

mm and < 150 mm from edges and corners of the board and not overlap board joints.

G Ensure accurate trimming to achieve close–butting joints

G Please refer to page 22 for recommended fixing patterns.

and continuity of insulation.

G Each fixing should incorporate a square or circular plate

Availability G Kingspan Thermataper® TT46 LPC/FM is available through specialist insulation distributors and selected roofing merchants throughout the UK and Ireland.

washer (min. 50 x 50 mm or 50 mm diameter). G If two or more layers of insulation are to be installed, the

packer boards should be mechanically fixed with minimum 1 No. fixing in the centre of the board before fixing the top layer as described above.

Packaging and Storage G The polyethylene packaging of Kingspan Insulation products, which is recyclable, should not be considered adequate for outside protection.

G Where alternative mechanical fixing systems are specified,

such as bar fixing systems, the specified system must give similar restraint to the insulation board as would be attained by the use of conventional telescopic tube fasteners.

G Ideally boards should be stored inside a building. If

however, outside storage cannot be avoided the boards should be stacked clear of the ground and covered with an opaque polythene sheet or weatherproof tarpaulin. Boards that have been allowed to get wet should not be used. Health & Safety G Kingspan Insulation products are chemically inert and safe to use. G A Safety Information Data Sheet for this product is

available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety. Please note that the reflective surface on this product is designed to enhance its thermal performance. As such, it will reflect light as well as heat, including ultraviolet light. Therefore, if this board is being installed during very bright or sunny weather, it is advisable to wear UV protective sunglasses or goggles, and if the skin is exposed for a significant period of time, to protect the bare skin with a UV block sun cream. The reflective facing used on this product can be slippery underfoot when wet. Therefore, it is recommended that any excess material should be contained to avoid a slip hazard. Warning – do not stand on or otherwise support your weight on any of these products unless it is fully supported by a load bearing surface.

TT46 LPC/FM Product Details Product Description

Taper Gradients

Kingspan Thermataper® TT46 LPC/FM is the tapered version of Kingspan Thermaroof® TR26 LPC/FM.

Kingspan Thermataper® TT46 LPC/FM is available ex–stock in falls of 1:30, 1:40, 1:60 and 1:80. For information regarding tapered roof designs incorporating Kingspan Thermataper® TT46 LPC/FM in a wider range of falls please contact the Kingspan Insulation Tapered Roofing Department (see rear cover).

The Facings Kingspan Thermataper® TT46 LPC/FM is faced on both sides with a low emissivity composite foil, autohesively bonded to the insulation core during manufacture.

Compressive Strength

The Core

The compressive strength of Kingspan Thermataper® TT46 LPC/FM typically exceeds 150 kPa at 10% compression, when tested to BS / I.S. EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

The core of Kingspan Thermataper® TT46 LPC/FM is manufactured with Nilflam® technology, a high performance rigid thermoset polyisocyanurate (PIR) insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Water Vapour Resistance Adjusted for the effect of board joints, the product achieves a resistance far greater than 100 MN.s/g, when tested in accordance with BS EN 12086: 1997 / I.S. EN 12086: 1998 (Thermal insulating products for building applications Determination of water vapour transmission properties). Kingspan Thermataper® TT46 LPC/FM should be installed over a vapour control layer or sealed metal deck (see ‘Water Vapour Control’ on page 8).

Standards and Approvals Kingspan Thermataper® TT46 LPC/FM is manufactured to the highest standards in accordance with requirements BS 4841–4 (Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end–use applications. Specification for laminated boards (roofboards) with auto–adhesively or separately bonded facings for use as roofboard thermal insulation under single–ply roofing membranes).

Durability If correctly installed, Kingspan Thermataper® TT46 LPC/FM can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Kingspan Thermataper® TT46 LPC/FM is also manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

Standard Dimensions Kingspan Thermataper® TT46 LPC/FM is available in the following standard size: Nominal Dimension

Availability

Length (m) Width (m) Insulant Thickness (mm) Systems with a 1:30 & 1:40 fall Systems with a 1:60 & 1:80 fall All systems

1.2 1.2 50 minimum 25 minimum Unlimited maximum*

* Packer boards will be required above a specific thickness.

Resistance to Solvents, Fungi & Rodents

LPCB & FM Certification

The insulation core is resistant to short–term contact with petrol and with most dilute acids, alkalis and mineral oils. However, it is recommended that any spills be cleaned off fully before the boards are installed. Ensure that safe methods of cleaning are used, as recommended by the suppliers of the spilt liquid. The insulation core is not resistant to some solvent–based adhesive systems, particularly those containing methyl ethyl ketone. Adhesives containing such solvents should not be used in association with this product. Damaged boards or boards that have been in contact with harsh solvents or acids should not be used.

FM Certification Kingspan Thermataper® TT46 LPC/FM is certified as achieving Class 1 Insulated Steel Deck Pass to Factory Mutual Research Standards 4450: 1989 (Approval Standard for Class 1 Insulated Steel Deck Pass) and 4470: 2010 (Approval Standard for Single–Ply, Polymer–Modified Bitumen Sheet, Built–Up Roof (BUR) and Liquid Applied Roof Assemblies for use in Class 1 Noncombustible Roof Deck Construction), subject to the conditions of approval as a roof insulation product for use in Class 1 roof constructions as described in the current edition of the Factory Mutual Research Approval Guide.

The insulation core and facings used in the manufacture of Kingspan Thermataper® TT46 LPC/FM, resist attack by mould and microbial growth, and do not provide any food value to vermin.

Class 1 Roof Construction

Fire Performance LPCB Certification Metal deck roofing constructions incorporating Kingspan Thermataper® TT46 LPC/FM, produced at Kingspan Insulation’s Pembridge and Castleblayney manufacturing facilities, have been successfully tested to LPS 1181: Part 1 (Requirements and Tests for Built–up Cladding and Sandwich Panel Systems for use as the External Envelope of Buildings). The table below indicates the LPCB listed approvals for Kingspan Thermataper® TT46 LPC/FM. For further details please contact the Kingspan Insulation Technical Service Department (see rear cover) or alternatively search for “Thermataper® TT46 LPC/FM” or approval reference number 388b/01 on www.redbooklive.com.

Kingspan Thermataper® TT46 LPC/FM, when subjected to the British Standard fire test, specified in the table below, will achieve the result shown, when waterproofed with a single–ply waterproofing membrane. Test

Result

BS 476–3: 2004 (External fire exposure roof test)

Dependent on single–ply membrane adopted

Further details on the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

Thermal Properties The effective thermal conductivity and thermal resistance of the insulation in a tapered roofing system is specific to the individual roof design. The Kingspan Insulation Tapered Roofing Department (see rear cover for details) performs calculations to determine these values in accordance with Annex C of BS EN ISO 6946: 2007 (Building components and building elements – Thermal resistance and thermal transmittance – Calculation method) as part of the scheme design process.

Product

Thickness (mm)

Vapour Control

Grade

LPCB Ref No.

Kingspan 30 – 120 sealed metal EXT − B 388b/01 Thermataper® in a deck or TT46 LPC/FM single layer separate vapour control layer

LPS 1181: Part 1 Certificate No. 388b/01

TT47 LPC/FM Design Considerations Typical Constructions Metal Deck

DPC to drain internally or externally as specified

Damp proof course (DPC)

Single–ply non–bituminous membrane

NBS Specifications Details also available in NBS Plus. NBS users should refer to clause(s): J21 333, J42 420 and J42 430 (Standard and Intermediate) J42 10 (Minor Works)

Kingspan Thermataper® TT47 LPC/FM

Metal deck

Vapour control layer (not required if metal deck is sealed)

Roof Waterproofing Kingspan Kooltherm K8 Cavity Board taken up as high as the flat roof insulation upstand ®

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Kingspan Thermataper® TT47 LPC/FM is suitable for use with most fully adhered single–ply waterproofing membranes. When using Kingspan Thermataper® TT47 LPC/FM with fully adhered single–ply waterproofing membranes, the joints between boards and cut edges, immediately below the waterproofing membrane, must be taped with a min. 50 mm wide foil tape. Please contact the Kingspan Insulation Technical Service Department (see rear cover) to check waterproofing membrane and proprietary adhesive system compatibility. Advice should be sought, from the appropriate waterproofing membrane manufacturer, in relation to the requirement for the use of a fleece backed membrane with the waterproofing membrane in question.

Figure 7

Dense Concrete Deck DPC to drain internally or externally as specified

Damp proof course (DPC) Single–ply non–bituminous membrane

Kingspan Thermataper® TT47 LPC/FM

12.5 mm plasterboard fixed to 25 x 50 mm timber battens at 600 mm centres 150 mm concrete deck Vapour control layer

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Kingspan Thermataper® TT47 LPC/FM is also suitable for use with most bitumen based waterproofing systems including high performance types which incorporate a Type 3G perforated base layer to BS 747: 2000 (Reinforced bitumen sheets for roofing. Specification). The 3G felt layer should be laid dry and loose, mineral face down with a fully bonded perimeter zone. Partially bonded built–up felt waterproofing should be laid, where applicable, in accordance with BS 8217: 2005 (Reinforced bitumen membranes for roofing. Code of practice).

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Figure 8

Specification Clause

Kingspan Thermataper® TT47 LPC/FM is also suitable for use with mastic asphalt waterproofing systems. Mastic asphalt waterproofing should be laid, where applicable, in accordance with BS 8218: 1998 (Code of practice for mastic asphalt roofing). Mastic asphalt should always be laid over an isolating layer of loose–laid Type 4A sheathing felt to BS 747: 2000 (Reinforced bitumen sheets for roofing. Specification). The exposed face of insulation upstands, at parapets and abutments, must be lined with 18 mm exterior grade plywood, prior to the mastic asphalt waterproofing being laid. The plywood is used as an anchor point for the expanded metal substrate onto which the vertical mastic asphalt is laid.

Kingspan Thermataper® TT47 LPC/FM should be described in specifications as:– The roof insulation shall be Kingspan Thermataper® TT47 LPC/FM ____mm thick: comprising a high performance rigid thermoset insulation core faced on both sides with a coated glass tissue facing. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); in accordance with the requirements of BS 4841–3 and BS 4841–4; under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them. 14

For mechanically fixed applications, a minimum vapour control layer should consist of a 1000 gauge (250 micron) polythene sheet, with all joints lapped and then sealed with double sided self adhesive tape.

When Kingspan Thermataper® TT47 LPC/FM is to be used to insulate balconies, waterproofed with mastic asphalt with a porous promenade tile overlay, a 20 mm cork roofboard should be bitumen bonded to the Kingspan Thermataper® TT47 LPC/FM prior to laying the Type 4A sheathing felt and mastic asphalt.

For applications where the insulation boards are to be bonded to the vapour control layer, a minimum vapour control layer should consist of a coated roofing felt complying with Type 3B to BS 747: 2000 (Reinforced bitumen sheets for Roofing. Specification), or S1P1 to BS 8747: 2007 (Reinforced bitumen membranes (RBMs) for roofing. Guide to selection and specification), or any appropriate metal–cored vapour control layer.

Kingspan Thermataper® TT47 LPC/FM is also suitable for use with some cold liquid applied waterproofing systems. When using Kingspan Thermataper® TT47 LPC/FM with cold liquid applied waterproofing systems, a carrier membrane for the waterproofing must be installed over the insulation boards. Advice should be sought, from the waterproofing system manufacturer, about the specification of the carrier membrane and the compatibility of the waterproofing system with Kingspan Thermataper® TT47 LPC/FM. For further advice please contact the Kingspan Insulation Technical Service Department (see rear cover).

Where the separate vapour control layer is to be bonded, allowance should be made for adequate bonding of the vapour control layer to the substrate, so as to provide a suitable surface upon which to lay the insulation boards and sufficient resistance to wind up–lift (see ‘Wind Loading’).

NB Kingspan Thermataper® TT47 LPC/FM is also suitable for use with mechanically fixed single–ply waterproofing membranes.

Roof Loading / Traffic

Water Vapour Control

Kingspan Thermataper® TT47 LPC/FM is suitable for use on access roof decks subject to limited foot traffic.

Kingspan Thermataper® TT47 LPC/FM should be installed over a separate vapour control layer, in new build roofs, unless it is being used in conjunction with a sealed metal deck. Regardless of the deck type it is recommended that a condensation risk analysis is carried out for every project.

Where inappropriate foot traffic is liable to occur, it is recommended that, for roofs waterproofed with mastic asphalt, a 20 mm cork roofboard is bitumen bonded to the Kingspan Thermataper® TT47 LPC/FM prior to waterproofing, and the roof surface is protected by promenade tiles.

Where inappropriate foot traffic is liable to occur, it is recommended that, for roofs waterproofed with partially bonded built–up felt, the roof surface is protected by promenade tiles. Where inappropriate foot traffic is liable to occur, it is recommended that, for roofs waterproofed with fully adhered single–ply or cold liquid applied waterproofing systems, the roof surface is protected by specially constructed walk–ways.

In refurbishment projects, where Kingspan Thermataper® TT47 LPC/FM is to be installed over an existing bituminous waterproofing membrane, the membrane can be used as a vapour control layer, as long as it is in a good water tight condition. Where this is not the case, a separate vapour control layer should be installed.

For further advice on the acceptability of specific foot traffic regimes, please contact the Kingspan Insulation Technical Service Department (see rear cover).

The type of separate vapour control layer required will be dependent upon the chosen method of fixing the insulation boards.

TT47 LPC/FM Sitework Laying Pattern G The working drawings supplied by the Kingspan Insulation

Upper–most packer board layer

Tapered Roofing Department will indicate the area of the roof to be covered, the minimum insulation level, fall direction and pitch of the tapered system. G The location of each board type will be indicated clearly

on the drawing and each pack will contain one board type only. G Ridges, hips and valleys will be marked on the drawings,

together with the setting out commencement points for laying of the boards G In situations where two or more layers of insulation are Tapered boards offset relative to upper–most packer board layer

Figure 10 Offsetting of Tapered Boards Relative to Packer Boards

G In all cases, the layers should be horizontally offset relative

Packer Board Size Selection G If consideration is being given to bonding Kingspan

to each other so that, as far as possible, the board joints in any two adjacent layers do not coincide with each other (see Figures 9 and 10).

Thermaroof® TR27 LPC/FM packer boards, either in hot bitumen or with the use of a suitable alternative proprietary adhesive system, it is recommended that 1.2 x 0.6 m boards (in Britain) or 1.2 x 1.2 m boards (in Ireland) are used.

First and third, if required, packer board layer

G All sizes of board are suitable for mechanical fixing.

Second and fourth packer board layer, if required, offset relative to first and third

Figure 9 Offsetting of Multiple Packer Board Layers

Installing over Metal Decks

Installing over Concrete Decks

G Where an FM or LPCB approved construction is required,

G Concrete decks should be clean, level, dry, and without

please refer to ‘LPCB & FM Certification’ on page 21.

large projections, steps or gaps.

G Metal decks should be clean, level, dry, and without large

G If the insulation boards are to be bonded down, in order to

projections, steps or gaps.

ensure an adequate bond between the vapour control layer and the concrete deck, the concrete or screeded surface should be suitably primed, in accordance with the primer manufacturer’s instructions, prior to the application of the hot bitumen, or suitable alternative proprietary adhesive system, used to bond the vapour control layer to the deck.

G If using a sealed metal deck there is no requirement for a

separate vapour control layer. G If the metal deck is not sealed, and the insulation boards

are to be bonded down, in order to ensure an adequate bond between the metal deck and the vapour control layer, the metal deck should be suitably primed, in accordance with the primer manufacturer’s instructions, prior to the application of the hot bitumen, or suitable alternative proprietary adhesive system, used to bond the vapour control layer to the deck.

G Where one run of the specified vapour control layer laps

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed. G Turn up the vapour control layer at the edge of the roof

G If the metal deck is not sealed, and the insulation boards

to a height appropriate to the specified waterproofing membrane.

are to be mechanically fixed, the vapour control layer should be loose–laid.

G Boards of Kingspan Thermataper® TT47 LPC/FM should

G Where one run of the specified vapour control layer laps

be bonded down by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer, or with the use of a suitable alternative proprietary adhesive system.

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed. G Turn up the vapour control layer at the edge of the roof

G Alternatively, the insulation boards should be secured to

to a height appropriate to the specified waterproofing membrane.

the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixings’).

G Boards of Kingspan Thermataper® TT47 LPC/FM should

G Insulation boards should, wherever possible, be laid

be secured to the deck using mechanical fixings e.g. telescopic tube fasteners (see `Mechanical Fixings').

break–bonded and with joints lightly butted. There should be no gaps at abutments.

G Alternatively, the insulation boards should be bonded down

G Roof–light or ventilator kerbs etc. should always insulated

by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer / sealed metal deck, or with the use of a suitable alternative proprietary adhesive system.

to the same standard as the general roof area i.e. to the Annex C U–value of the tapered system. G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

G Insulation boards should, wherever possible, be laid

upstand should be used around the perimeter of the roof on the internal façade of parapets.

break–bonded and with joints lightly butted. There should be no gaps at abutments.

G The waterproofing membrane is installed in accordance

G Roof–light or ventilator kerbs etc. should always insulated

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

to the same standard as the general roof area i.e. to the Annex C U–value of the tapered system. G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

upstand should be used around the perimeter of the roof on the internal façade of parapets. G The waterproofing membrane is installed in accordance

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

TT47 LPC/FM Sitework Installing over Plywood Decks

Installing over Existing Flat Roofs

G Plywood decks should be clean, level, dry, and without

G The existing waterproofing membrane surface should be

large projections, steps or gaps.

clean, dry, without large projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.

G If the insulation boards are to be bonded down, in order to

ensure an adequate bond between the plywood deck and the vapour control layer, the plywood surface should be suitably primed, in accordance with the primer manufacturer’s instructions, prior to the application of the hot bitumen, or suitable alternative proprietary adhesive system, used to bond the vapour control layer to the deck.

G Where the existing waterproofing membrane is not fit for

purpose as a vapour control layer, and the new insulation boards are to be bonded down, a separate vapour control layer should be bonded to it with hot bitumen, or suitable alternative proprietary adhesive system. If the insulation boards are to be mechanically fixed, the vapour control layer should be loose–laid.

G Alternatively, the vapour control layer can be nailed to the

deck, in which case the nail heads will become sealed with the subsequent bonding of the insulation boards to the vapour control layer.

G Where one run of the specified vapour control layer laps

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G If the insulation boards are to be mechanically fixed, the

G Turn up the vapour control layer at the edge of the roof to

vapour control layer should be loose–laid. G Where one run of the specified vapour control layer laps

a height appropriate to the specified new waterproofing membrane.

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G Boards of Kingspan Thermataper® TT47 LPC/FM should

G Turn up the vapour control layer at the edge of the roof

be bonded down by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer, or with the use of a suitable alternative proprietary adhesive system.

to a height appropriate to the specified waterproofing membrane. G Boards of Kingspan Thermataper® TT47 LPC/FM should

G Alternatively, the insulation boards should be secured to

be bonded down by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer, or with the use of a suitable alternative proprietary adhesive system.

the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixings’). G Insulation boards should, wherever possible, be laid

G Alternatively, the insulation boards should be secured to

break–bonded and with joints lightly butted. There should be no gaps at abutments.

the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixings’).

G Roof–light or ventilator kerbs etc. should always insulated

G Insulation boards should, wherever possible, be laid

to the same standard as the general roof area i.e. to the Annex C U–value of the tapered system.

break–bonded and with joints lightly butted. There should be no gaps at abutments.

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

G Joints between insulation boards should not coincide with

upstand should be used around the perimeter of the roof on the internal façade of parapets.

those between the plywood sheets.

G A minimum distance of 300 mm should be maintained

G Roof–light or ventilator kerbs etc. should always insulated

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

to the same standard as the general roof area i.e. to the Annex C U–value of the tapered system.

G The waterproofing membrane is installed in accordance

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

upstand should be used around the perimeter of the roof on the internal façade of parapets. G The waterproofing membrane is installed in accordance

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

Mechanical Fixings

General

G The number of mechanical fixings required to fix Kingspan

Thermataper TT47 LPC/FM will vary with the geographical location of the building, the local topography, and the height and width of the roof concerned along with the deck type. ®

G A minimum of 4 fixings are required to secure boards of

Kingspan Thermataper® TT47 LPC/FM to the deck.

Reflective Coatings G Bitumen based built–up waterproofing systems laid over Kingspan Thermataper® TT47 LPC/FM should always incorporate a solar reflective layer such as chippings or a specialist coating.

G The requirement for additional fixings should be assessed

Daily Working Practice

G Mechanical fixings must be in an even pattern.

G At the completion of each day’s work, or whenever work

G Fasteners at insulation board edges must be located

is interrupted for extended periods of time, a night joint must be made in order to prevent water penetration into the roof construction.

> 50 mm and < 150 mm from edges and corners of the board and not overlap board joints. G Please refer to page 22 for recommended fixing patterns.

Cutting G Cutting should be carried out either by using a fine toothed

G Each fixing should incorporate a square or circular plate

washer (min. 50 x 50 mm or 50 mm diameter).

saw, or by scoring with a sharp knife, snapping the board over a straight edge and then cutting the facing on the other side.

G If two or more layers of insulation are to be installed, the

packer boards should be mechanically fixed with minimum 1 No. fixing in the centre of the board before fixing the top layer as described above.

G Ensure accurate trimming to achieve close–butting joints

and continuity of insulation.

G Where alternative mechanical fixing systems are specified,

Availability G Kingspan Thermataper® TT47 LPC/FM is available through specialist insulation distributors and selected roofing merchants throughout the UK and Ireland.

such as bar fixing systems, the specified system must give similar restraint to the insulation board as would be attained by the use of conventional telescopic tube fasteners.

Packaging and Storage

G The polyethylene packaging of Kingspan Insulation

products, which is recyclable, should not be considered adequate for outdoor protection. G Ideally, boards should be stored inside a building.

If, however, outside storage cannot be avoided, then the boards should be stacked clear of the ground and covered with an opaque polythene sheet or weatherproof tarpaulin. Boards that have been allowed to get wet should not be used. Health and Safety G Kingspan Insulation products are chemically inert and safe to use. G A Safety Information Data Sheet for this product is

available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety. Warning – do not stand on or otherwise support your weight on this board unless it is fully supported by a load bearing surface.

TT47 LPC/FM Product Details Product Description

Standard Dimensions

Kingspan Thermataper® TT47 LPC/FM is the tapered version of Kingspan Thermaroof® TR27 LPC/FM.

Kingspan Thermataper® TT47 LPC/FM is available in the following standard size:

The Facings Kingspan Thermataper® TT47 LPC/FM is faced on both sides with a coated glass tissue, autohesively bonded to the insulation core during manufacture.

The Core

Nominal Dimension

Availability

Length (m) Width (m) Insulant Thickness (mm) Systems with a 1:30 & 1:40 fall Systems with a 1:60 & 1:80 fall Systems with a 1:120 fall All systems

1.2 1.2 50 minimum 25 minimum 30 minimum Unlimited maximum*

* Packer boards will be required above a specific thickness.

The core of Kingspan Thermataper TT47 LPC/FM is manufactured with Nilflam® technology, a high performance rigid thermoset polyisocyanurate (PIR) insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Kingspan Thermataper® TT47 LPC/FM is available ex stock in falls of 1:30, 1:40, 1:60 and 1:80. For information regarding tapered roof designs incorporating Kingspan Thermataper® TT47 in a wider range of falls please contact the Kingspan Insulation Tapered Roofing Department (see rear cover).

Standards and Approvals

Compressive Strength

Kingspan Thermataper TT47 LPC/FM is manufactured to the highest standards in accordance with the requirements of both BS 4841–3 (Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end–use applications. Specification for laminated boards (roofboards) with auto–adhesively or separately bonded facings for use as roofboard thermal insulation under built–up bituminous roofing membranes) and BS 4841–4 (Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end–use applications. Specification for laminated boards (roofboards) with auto–adhesively or separately bonded facings for use as roofboard thermal insulation under single−ply roofing membranes).

The compressive strength of Kingspan Thermataper® TT47 LPC/FM typically exceeds 150 kPa at 10% compression, when tested to BS / I.S. EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

Taper Gradients

Water Vapour Resistivity The product typically achieves a resistivity greater than 300 MN.s/g.m, when tested in accordance with BS EN 12086: 1997 / I.S. EN 12086: 1998 (Thermal insulating products for building applications. Determination of water vapour transmission properties). Kingspan Thermataper® TT47 LPC/FM should be installed over a vapour control layer or sealed metal deck (see ‘Water Vapour Control’ page 15).

Kingspan Thermataper® TT47 LPC/FM is also manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

Durability If correctly installed, Kingspan Thermataper® TT47 LPC/FM can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Kingspan Thermataper® TT47 LPC/FM, produced at Kingspan Insulation’s Pembridge and Selby manufacturing facilities, is covered by BBA Certificate 06/4372.

APPROVAL INSPECTION TESTING CERTIFICATION CERTIFICATE No 06/4372

Resistance to Solvents, Fungi & Rodents

LPCB & FM Certification

The insulation core is resistant to short–term contact with petrol and with most dilute acids, alkalis and mineral oils. However, it is recommended that any spills be cleaned off fully before the boards are installed. Ensure that safe methods of cleaning are used, as recommended by the suppliers of the spilt liquid. The insulation core is not resistant to some solvent–based adhesive systems, particularly those containing methyl ethyl ketone. Adhesives containing such solvents should not be used in association with this product. Damaged boards or boards that have been in contact with harsh solvents or acids should not be used.

FM Certification Kingspan Thermataper® TT47 LPC/FM is certified as achieving Class 1 Insulated Steel Deck Pass to Factory Mutual Research Standards 4450: 1989 (Approval Standard for Class 1 Insulated Steel Deck Pass) and 4470: 2010 (Approval Standard for Single–Ply, Polymer–Modified Bitumen Sheet, Built–Up Roof (BUR) and Liquid Applied Roof Assemblies for use in Class 1 Non–combustible Roof Deck Construction), subject to the conditions of approval as a roof insulation product for use in Class 1 roof constructions as described in the current edition of the Factory Mutual Research Approval Guide.

The insulation core and facings used in the manufacture of Kingspan Thermataper® TT46 LPC/FM, resist attack by mould and microbial growth, and do not provide any food value to vermin.

Class 1 Roof Construction

Fire Performance LPCB Certification Metal deck roofing constructions incorporating Kingspan Thermataper® TT47 LPC/FM, produced at Kingspan Insulation’s Pembridge and Castleblayney manufacturing facilities, have been successfully tested to LPS 1181: Part 1 (Requirements and Tests for Built–up Cladding and Sandwich Panel Systems for use as the External Envelope of Buildings). The table below indicates the LPCB listed approvals for Kingspan Thermataper® TT47 LPC/FM. For further details please contact the Kingspan Insulation Technical Service Department (see rear cover) or alternatively search for “Thermataper® TT47 LPC/FM” or approval reference number 388b/02 on www.redbooklive.com.

Kingspan Thermataper® TT47 LPC/FM, when subjected to the British Standard fire test, specified in the table below, will achieve the result shown, when waterproofed with a single–ply waterproofing membrane. Test

Result

BS 476–3: 2004 (External fire exposure roof test)

Dependent on single–ply membrane adopted

Kingspan Thermataper® TT47 LPC/FM, when subjected to the British Standard fire test specified in the table below, will achieve the result shown, when waterproofed with 3 layer built–up felt and a loading coat of 10 mm chippings. For specifications without the chippings please consult the manufacturer of the mineral surfaced cap sheet for their fire classification details. Test

Result

BS 476–3: 1958 (External fire exposure roof test)

FAA Rating

Product

Thickness (mm)

Vapour Control

Grade

LPCB Ref No.

Kingspan 30 – 120 Sealed metal EXT − B 388b/02 Thermataper® in a deck or TT47 LPC/FM single layer separate vapour control layer

Further details on the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

Thermal Properties

LPS 1181: Part 1 Certificate No. 388b/02

The effective thermal conductivity and thermal resistance of the insulation in a tapered roofing system is specific to the individual roof design. The Kingspan Insulation Tapered Roofing Department (see rear cover for details) performs calculations to determine these values in accordance with Annex C of BS EN ISO 6946: 2007 (Building components and building elements – Thermal resistance and thermal transmittance – Calculation method) as part of the scheme design process. 21

Mechanical Fixing Patterns Recommended Fixing Patterns The recommended fixing patterns for Kingspan Thermataper® TT46 LPC/FM and Kingspan Thermataper® TT47 LPC/FM are shown below. The number of fixings necessary should be assessed in accordance with BS 6399−2: 1997 (Loadings for buildings. Code of practice for wind loads) or BS / I.S. EN 1991−1.4: 2005 (National Annex to Eurocode 1. Actions on structures, General Actions, Wind Actions). The images below show recommended fixing patterns, the number of fixings used and the resulting fixing density (number of fixings per m2).

4 No. per board

5 No. per board

6 No. per board

7 No. per board

(1.2 x 1.2 m board – 2.77 fixings / m2) (1.2 x 1.2 m board – 3.47 fixings / m2) (1.2 x 1.2 m board – 4.16 fixings / m2) (1.2 x 1.2 m board – 4.86 fixings / m2)

8 No. per board

9 No. per board

10 No. per board

11 No. per board

(1.2 x 1.2 m board – 5.55 fixings / m2) (1.2 x 1.2 m board – 6.25 fixings / m2) (1.2 x 1.2 m board – 6.94 fixings / m2) (1.2 x 1.2 m board – 7.63 fixings / m2)

12 No. per board

13 No. per board

14 No. per board

15 No. per board

(1.2 x 1.2 m board – 8.33 fixings / m2) (1.2 x 1.2 m board – 9.02 fixings / m2) (1.2 x 1.2 m board – 9.72 fixings / m2) (1.2 x 1.2 m board – 10.41 fixings / m2) NB Mechanical fixings e.g. telescopic tube fasteners, must be arranged in an even pattern. Fasteners at board edges must be located > 50 mm and < 150 mm from edges and corners of the board and not overlap board joints.

Kingspan Insulation Company Details

Insulation Product Benefits

Kingspan Insulation Ltd is part of the Kingspan Group plc., one of Europe's leading construction product manufacturers. The Kingspan Group was formed in the late 1960s and is a publicly quoted group of companies headquartered in Kingscourt, County Cavan, Ireland.

Kingspan Kooltherm® K–range Products G With a thermal conductivity of 0.020–0.023 W/m.K these are the most thermally efficient insulation products commonly used. G The thinnest commonly used insulation products for any

specific U–value.

Kingspan Insulation Ltd is a market leading manufacturer of premium and high performance rigid insulation products and insulated systems for building fabric and building services applications.

G Rigid thermoset insulation core is Class 0, as defined

by the Building Regulations in England, Wales & Ireland, and Low Risk, as defined by the Building Standards in Scotland. G Rigid thermoset insulation core achieves the best possible

Products & Applications

rating of < 5% smoke obscuration when tested to BS 5111: Part 1: 1974.

Kingspan Insulation Ltd has a vast product range. Kingspan Insulation Ltd products are suitable for both new build and refurbishment in a variety of applications within both domestic and non–domestic buildings.

G Manufactured with a blowing agent that has zero Ozone

Depletion Potential (ODP) and low Global Warming Potential (GWP).

Insulation for: G Pitched Roofs

Kingspan Therma™ Range Products G With a thermal conductivity of 0.022–0.027 W/m.K these are amongst the more thermally efficient insulation products commonly used.

G Flat Roofs G Green Roofs G Cavity Walls

G Each product achieves the required fire performance for its

G Solid Walls

intended application.

G Timber and Steel Framing

G Manufactured with a blowing agent that has zero Ozone

G Insulated Cladding Systems

Depletion Potential (ODP) and low Global Warming Potential (GWP).

G Insulated Render Systems G Floors

Kingspan Styrozone® Range Products G Rigid extruded polystyrene insulation (XPS) has the necessary compressive strength to make it the product of choice for specialist applications such as heavy duty flooring, car park decks and inverted roofing.

G Soffits G Ductwork

Further Solutions:

G Insulated Dry–Lining

G Each product achieves the required fire performance for its

G Tapered Roofing Systems

intended application.

G Cavity Closers

G Manufactured with a blowing agent that has zero Ozone

G Kingspan KoolDuct® Pre–Insulated Ducting

Depletion Potential (ODP).

G Kingspan nilvent Breathable Membranes ®

All Products G Their closed cell structure resists both moisture and water vapour ingress – a problem which can be associated with open cell materials such as mineral fibre and which can result in reduced thermal performance.

G Kingspan TEK® Building System

G Unaffected by air infiltration – a problem that can be

experienced with mineral fibre and which can reduce thermal performance. G Safe and easy to install – non–fibrous. G If installed correctly, can provide reliable long term thermal

performance over the lifetime of the building.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Ireland

– Tel: +44 (0) 1544 387 384 – Fax: +44 (0) 1544 387 484 – email: literature@kingspaninsulation.co.uk – www.kingspaninsulation.co.uk/literature – Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie – www.kingspaninsulation.ie/literature

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Please contact the Kingspan Insulation Technical Service Department on the numbers below: UK

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd is a member of: The Single Ply Roofing Association The Mastic Asphalt Council (MAC)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Kingspan, KoolDuct, Kooltherm, Nilflam, nilvent, TEK, Thermaroof, Thermataper, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK, Ireland and other countries. All rights reserved. ™ Therma is a Trademark of the Kingspan Group plc. ® Styrozone is a Registered Trademark. Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456. Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Insulation CI/Sfb

(27.9)

Rn7

Seventh Issue

March 2011

TR26 LPC/FM INSULATION FOR FLAT ROOFS WATERPROOFED WITH MECHANICALLY FIXED SINGLE–PLY WATERPROOFING

G G G

G G G G G G G

LPS 1181: Part 1 Certificate No. 388b/01

High performance rigid thermoset insulation – thermal conductivity 0.022 W/m.K LPCB approved to LPS 1181: Part 1 FM approved for Class 1 steel deck roof assemblies Fully compatible with most mechanically fixed single–ply waterproofing systems Compatible with most green roof systems Installation technique is ideal for fast track building programmes Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP and low GWP

Class 1 Roof Construction

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

Concrete Deck

The U−values in the tables that follow have been calculated, under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U–value and Condensation Risk Calculations, using the method detailed in BS / I.S. EN ISO 6946: 2007 (Building components and building elements. Thermal resistance and thermal transmittance. Calculation method) and using the conventions set out in BR443 “Conventions for U−value calculations”. They are valid for the constructions shown in the details immediately above each table.

Dense Concrete Deck with Suspended Ceiling DPC to drain internally or externally as specified

Damp proof course (DPC)

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Waterproofing e.g. single–ply non–bituminous membrane Telescopic tube fastener Kingspan Thermaroof® TR26 LPC/FM

These examples are based on Kingspan Thermaroof® TR26 LPC/FM, waterproofed using a mechanically fixed single–ply membrane. The insulation board is mechanically through a sealed metal deck, or over a vapour control layer, which has itself been loose–laid directly over the type of deck stated for each application. The ceiling, where applicable, is taken to be a 3 mm skim coated 12.5 mm plasterboard with a cavity between it and the underside of the deck.

50 mm screed to falls 150 mm concrete deck 12.5 mm plasterboard fixed to 25 x 50 mm timber battens at 600 mm centres

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Figure 1

Insulant Thickness (mm)

NB For the purposes of these calculations the standard of workmanship has been assumed good and therefore the correction factor for air gaps has been ignored.

70 75 80 90 100 105 110 115 120 125 130 135 140 150 75 + 80* 80 + 85* 90 + 90 100 + 100

NB The figures quoted are for guidance only. A detailed U–value calculation together with condensation risk analysis should be completed for each individual project. NB If your construction is different for those specified and / or to gain a comprehensive U−value calculation along with a condensation risk analysis for your project please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

U–value Table Key Where an is shown, the U−value is higher than the worst of the maximum new build area weighted average U−values allowed by the 2010 Editions of Approved Documents L to the Building Regulations (England & Wales), the 2010 Editions of Technical Handbooks Section 6 (Scotland), the 2006 Editions of Technical Booklets F (Northern Ireland), or the 2008 Editions of Technical Guidance Documents L* (Republic of Ireland).

U–values (W/m2.K)

0.25 0.24 0.22 0.20 0.19 0.18 0.17 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.12 0.11 0.10

* Where multiple layers of insulation of different thicknesses are used, the thickest layer should be installed as the outermost layer in the construction.

* Excluding Change of Use and Material Alterations.

Timber Deck

Metal Deck

Timber Deck with Plasterboard Ceiling

Metal Deck with No Ceiling DPC to drain internally or externally as specified

Damp proof course (DPC)

DPC to drain internally or externally as specified

Damp proof course (DPC)

Single–ply non–bituminous membrane

Telescopic tube fastener

Kingspan Thermaroof® TR26 LPC/FM

18 mm plywood deck

Metal deck

Vapour control layer 50 x 150 mm timber joists at 600 mm centres

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Vapour control layer (not required if metal deck is sealed)

Figure 2

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Figure 3 Insulant Thickness (mm) 70 75 80 90 100 105 110 115 120 125 130 135 140 150 75 + 80* 80 + 85* 90 + 90 100 + 100

Insulant Thickness (mm)

U–values (W/m2.K)

80 85 90 95 100 105 110 120 125 130 135 140 150 80 + 80 90 + 90 95 + 95 100 + 100 105 + 105

0.25 0.24 0.22 0.20 0.19 0.18 0.17 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.12 0.11 0.10

* Where multiple layers of insulation of different thicknesses are used, the thickest layer should be installed as the outermost layer in the construction.

U–values (W/m2.K)

0.25 0.24 0.22 0.21 0.20 0.19 0.18 0.17 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.11 0.10

Green Roof Systems Extensive Green Roof Covering – Metal Deck with No Ceiling

Semi−Intensive Green Roof Covering – Dense Concrete Deck with Suspended Ceiling

Extensive green roof covering

Semi−intensive green roof covering

Substrate to depth required

Filtration layer

Drainage layer

Roof barrier / protective layer(s)

Roof barrier / protective layer(s) Single–ply non–bituminous membrane Telescopic tube fastener

Single–ply non–bituminous membrane

Vapour control layer (not required if metal deck is sealed)

Telescopic tube fastener Kingspan Thermaroof® TR26 LPC/FM

50 mm screed to falls

150 mm concrete deck

Vapour control layer Metal decking (trough width appropriate to weight of green roof system applied)

12.5 mm plasterboard fixed to 25 x 50 mm timber battens at 600 mm centres

Figure 4

Kingspan Thermaroof® TR26 LPC/FM

Figure 5 Insulant Thickness (mm) 80 85 90 95 100 105 110 120 125 130 135 140 150 80 + 80 90 + 90 95 + 95 105 + 105

Insulant Thickness (mm)

U–values (W/m2.K)

70 75 80 90 100 105 110 115 120 125 130 135 140 150 75 + 80* 80 + 85* 90 + 90 100 + 100

0.25 0.24 0.22 0.21 0.20 0.19 0.18 0.17 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.10

U–values (W/m2.K)

0.25 0.24 0.22 0.20 0.19 0.18 0.17 0.17 0.16 0.16 0.15 0.14 0.14 0.13 0.12 0.11 0.10

* Where multiple layers of insulation of different thicknesses are used, the thickest layer should be installed as the outermost layer in the construction.

Design Considerations Linear Thermal Bridging

Specification Clause

Reasonable provision must be made to limit the effects of cold bridging. The design should ensure that roof–light or ventilator kerbs etc. are always insulated with the same thickness of Kingspan Thermaroof® TR26 LPC/FM as the general roof area. A 25 mm thick Kingspan Thermaroof® TR27 LPC/FM upstand should be used around the perimeter of the roof on the internal façade of parapets. A minimum distance of 300 mm should be maintained between the top of the insulation upstand and the bottom of the horizontal roof insulation. Wall insulation should also be carried up into parapets as high as the flat roof insulation upstand. Please contact the Kingspan Insulation Technical Service Department (see rear cover) for further advice.

Kingspan Thermaroof® TR26 LPC/FM should be described in specifications as:– The roof insulation shall be Kingspan Thermaroof® TR26 LPC/FM ____mm thick: comprising a high performance rigid thermoset insulation core faced on both sides with a low emissivity composite foil facing. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); in accordance with the requirements of BS 4841–4; under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them.

Environmental Impact & Responsible Sourcing

NBS Specifications Details also available in NBS Plus. NBS users should refer to clause(s): J42 420, J42 430 (Standard and Intermediate) J42 10 (Minor Works).

Green Guide Rating An Ecoprofile, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, has been created for Kingspan Thermaroof® TR26 LPC/FM produced at Kingspan Insulation’s British manufacturing facilities. The BRE has assigned the product a 2008 Green Guide Summary Rating of A+.

Wind Loading Wind loadings should be assessed in accordance with BS 6399–2: 1997 (Loadings for buildings. Code of practice for wind loads) or BS / I.S. EN 1991–1–4: 2005 (National Annex to Eurocode 1 Actions on Structures. General Actions. Wind Actions) taking into account: G length / width / height of the building; G orientation of the building;

Environmental Profiles Scheme Certificate Number ENP 409

G wind speed; G aspect (e.g. on a hill side); and

Responsible Sourcing Kingspan Thermaroof® TR26 LPC/FM is manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer components of the product are also manufactured under management systems certified to EN ISO 14001: 2004.

G topographical value of the surrounding area.

Falls The fall on a flat roof, constructed using Kingspan Thermaroof® TR26 LPC/FM, is normally provided by the supporting structure being directed towards the rainwater outlets. The fall should be smooth and steep enough to prevent the formation of rainwater ponds. In order to ensure adequate drainage, BS 6229: 2003 (Flat roofs with continuously supported coverings. Code of practice) recommends uniform gradients of not less than 1 in 80. However, because of building settlement, it is advisable to design in even greater falls. These can be provided by a Kingspan Thermataper® LPC/FM tapered roofing system (see below).

Sustainability & Responsibility Kingspan Insulation has a long–term commitment to sustainability and responsibility: as a manufacturer and supplier of insulation products; as an employer; as a substantial landholder; and as a key member of its neighbouring communities. A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility. 5

Tapered Roofing

Roof Loading / Traffic

Kingspan Thermaroof® TR26 LPC/FM is suitable for use on access roof decks subject to limited foot traffic.

Kingspan Thermaroof TR26 LPC/FM is also available in a tapered version, Kingspan Thermataper® TT46 LPC/FM, comprising a high performance rigid thermoset insulation core, manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP), faced on both sides with a low emissivity composite foil facing. Kingspan Thermataper® TT46 LPC/FM comes with a supporting design service. This ensures that the most cost−effective solution for a roof is identified and that the end result is a tapered system design which meets a roof's rainwater run−off and insulation requirements. Further details of Kingspan Thermataper® TT46 LPC/FM are available from the Kingspan Insulation Tapered Roofing Department (see rear cover), which should be consulted as early as possible in the process of designing a roof.

Where inappropriate foot traffic is liable to occur it is recommended that the roof surface is protected by specially constructed walk–ways. For further advice on the acceptability of specific foot traffic regimes, please contact the Kingspan Insulation Technical Service Department (see rear cover).

Green Roofs Kingspan Thermaroof® TR26 LPC/FM is suitable for use under most green roof systems. Green roof systems are a specialist design area. When designing a loose–laid insulated green roof assembly consideration needs to be given to the following.

Roof Waterproofing

Green roof systems are required to have a minimum dry weight of 80 kg/m2 to ballast the insulation boards beneath them. However, the total required dry weight will depend upon wind uplift, which in turn will vary with the geographical location of the building, local topography, and the height and width of the roof concerned. The necessity for any additional dry weight should be assessed in accordance with BS 6399−2: 1997 (Loading for Buildings. Code of practice for wind loads) or BS / I.S. EN 1991−1−4: 2005 (National Annex to Eurocode 1 Actions on structures. General Actions. Wind Actions).

Kingspan Thermaroof® TR26 LPC/FM is suitable for use with most mechanically fixed single–ply waterproofing membranes. Please Note: Kingspan Thermaroof® TR26 LPC/FM is not suitable for use with bitumen based built–up waterproofing systems or mastic asphalt.

Water Vapour Control Kingspan Thermaroof® TR26 LPC/FM should be installed over a separate vapour control layer, in new build roofs, unless it is being used in conjunction with a sealed metal deck. Regardless of the deck type it is recommended that a condensation risk analysis is carried out for every project.

When installing a loose–laid insulated green roof assembly, any insulation must be immediately over–laid with the green roof system, which must meet all of the requirements outlined above.

For refurbishment projects, involving the addition of insulation to existing insulated flat roofs, or roofs constructed of insulated steel faced composite panels, it is imperative that a U–value calculation and condensation risk analysis is carried out for every project, in order to ensure that the correct thickness of insulation is installed to achieve the required thermal performance, whilst avoiding interstitial condensation.

Lightning Protection

In refurbishment projects, where Kingspan Thermaroof® TR26 LPC/FM is to be installed over an existing bituminous waterproofing membrane, the membrane can be used as a vapour control layer, as long as it is in a good water tight condition. Where this is not the case, a separate vapour control layer should be installed.

Building designers should give consideration to the requirements of BS / I.S. EN 62305: 2006 (Protection against lightning).

A minimum separate vapour control layer should consist of a 1000 gauge (250 micron) polythene sheet, with all joints lapped and then sealed with double sided self adhesive tape.

Sitework Installing over Metal Decks

Installing over Concrete Decks

G Where an FM or LPCB approved construction is required,

G Concrete decks should be clean, dry, without large

please refer to ‘LPCB & FM Certification’ on page 13.

projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.

G Metal decks should be clean, dry, without large

G The vapour control layer should be loose–laid over the

projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.

deck.

G If using a sealed metal deck there is no requirement for a

G Where one run of the specified vapour control layer laps

separate vapour control layer.

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G If the metal deck is not sealed the vapour control layer

G Turn up the vapour control layer at the edge of the roof

should be loose–laid. G Where one run of the specified vapour control layer laps

to a height appropriate to the specified waterproofing membrane.

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G Boards of Kingspan Thermaroof TR26 LPC/FM should ®

G Turn up the vapour control layer at the edge of the roof

be secured to the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixings’).

to a height appropriate to the specified waterproofing membrane.

G Insulation boards should always be laid break–bonded,

G Boards of Kingspan Thermaroof TR26 LPC/FM should

either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments.

be secured to the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixings’).

G Roof–light or ventilator kerbs etc. should always insulated

G Insulation boards should always be laid break–bonded,

with the same thickness of Kingspan Thermaroof® TR26 LPC/FM as the general roof area.

either with their long edges at right angles to the trough openings, or diagonally across the corrugation line, and with joints lightly butted. There should be no gaps at abutments.

G A 25 mm thick Kingspan Thermaroof TR26 LPC/FM ®

upstand should be used around the perimeter of the roof on the internal façade of parapets.

G Roof–light or ventilator kerbs etc. should always insulated

G A minimum distance of 300 mm should be maintained

with the same thickness of Kingspan Thermaroof® TR26 LPC/FM as the general roof area.

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

G A 25 mm thick Kingspan Thermaroof TR26 LPC/FM ®

G The waterproofing membrane is also mechanically fixed in

upstand should be used around the perimeter of the roof on the internal façade of parapets.

accordance with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

G A minimum distance of 300 mm should be maintained

between the top of the insulation upstand and the bottom of the horizontal roof insulation. G The waterproofing membrane is also mechanically fixed in

accordance with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

Installing over Plywood Decks

Installing over Existing Flat Roofs

G Timber decks should be clean, dry, without large

G The existing waterproofing membrane surface should be

projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.

clean, dry, without large projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.

G The vapour control layer should be temporarily stapled or

G Where the existing waterproofing membrane is not fit for

nailed to the deck. G Where one run of the specified vapour control layer laps

purpose as a vapour control layer, a separate vapour control layer should be loose–laid over it.

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G Where one run of the specified vapour control layer laps

G Turn up the vapour control layer at the edge of the roof

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

to a height appropriate to the specified waterproofing membrane.

G Turn up the vapour control layer at the edge of the roof to

G Boards of Kingspan Thermaroof TR26 LPC/FM should

a height appropriate to the specified new waterproofing membrane.

be secured to the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixings’).

G Boards of Kingspan Thermaroof TR26 LPC/FM should ®

G Insulation boards should always be laid break–bonded,

be secured to the deck using mechanical fixings e.g. telescopic tube fasteners (see `Mechanical Fixings').

either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments.

G Insulation boards should always be laid break–bonded,

either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments.

G Joints between insulation boards should not coincide with

those between the plywood sheets.

G Roof–light or ventilator kerbs etc. should always insulated

with the same thickness of Kingspan Thermaroof® TR26 LPC/FM as the general roof area.

with the same thickness of Kingspan Thermaroof TR26 LPC/FM as the general roof area.

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM

G A 25 mm thick Kingspan Thermaroof TR26 LPC/FM

upstand should be used around the perimeter of the roof on the internal façade of parapets.

G A minimum distance of 300 mm should be maintained

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

G The waterproofing membrane is installed in accordance

G The waterproofing membrane is also mechanically fixed in

with the membrane manufacturer's instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

accordance with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

Installing over Existing Composite Panel Roofs

Mechanical Fixings

G If the existing profile provides inadequate support for the

G The number of mechanical fixings required to fix

Kingspan Thermaroof® TR26 LPC/FM will vary with the geographical location of the building, the local topography, and the height and width of the roof concerned along with the deck type.

insulation boards, the existing roof should be over–boarded, e.g. with plywood, prior to their installation. G Boards of Kingspan Thermaroof TR26 LPC/FM should ®

be secured to the deck using mechanical fixings. Please refer to the Kingspan Insulation Technical Advice Service (see rear cover) for advice on fixing specification.

G A minimum of 6 fixings are required to secure boards of

Kingspan Thermaroof® TR26 LPC/FM to the deck.

G Insulation boards should always be laid break–bonded and

G The requirement for additional fixings should be assessed

with joints lightly butted. There should be no gaps at abutments. If the existing roof has been over–boarded, then insulation boards should be laid with their long edges at right angles to the edge of, or diagonally across the roof. If not, they should be laid either with their long edges at right angles to the trough openings, or diagonally across the corrugation line

in accordance with BS 6399–2: 1997 (Loadings for buildings. Code of practice for wind loads) or BS / I.S. EN 1991−1.4: 2005 (National Annex to Eurocode 1. Actions on structures, General Actions, Wind Actions). G Mechanical fixings must be arranged in an even pattern. G Fasteners at insulation board edges must be located > 50

G Roof–light or ventilator kerbs etc. should always insulated

mm and < 150 mm from edges and corners of the board and not overlap board joints.

with the same thickness of Kingspan Thermaroof® TR26 LPC/FM as the general roof area.

G Please refer to page 11 for recommended fixing patterns. G Each fixing should incorporate a square or circular plate

G The waterproofing membrane is installed in accordance

washer (50 x 50 mm or 50 mm diameter).

with the membrane manufacturer's instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

G If two layers of insulation are to be installed, the base layer

should be mechanically fixed with minimum 1 No. fixing in the centre of the board before fixing the top layer as described above. G Where alternative mechanical fixing systems are specified,

such as bar fixing systems, the specified system must give similar restraint to the insulation board as would be attained by the use of conventional telescopic tube fasteners.

Installing in Two Layers

General

G In situations where two layers of insulation are required,

both layers should be installed in the same manner, as detailed in the preceding sections. However, refer to ‘Mechanical Fixings’ for guidance on the number of fixings to be used in each layer. G In all cases, the layers should be horizontally offset

relative to each other so that, as far as possible, the board joints in the two adjacent layers do not coincide with each other (see Figure 6).

First insulation layer

Cutting G Cutting should be carried out either by using a fine toothed saw, or by scoring with a sharp knife, snapping the board over a straight edge and then cutting the facing on the other side. G Ensure accurate trimming to achieve close–butting joints

and continuity of insulation. Availability

G Kingspan Thermaroof TR26 LPC/FM is available ®

through specialist insulation distributors and selected roofing merchants throughout the UK and Ireland.

Second insulation layer, if required, offset relative to first.

Figure 6 Offsetting of Multiple Insulation Layers

available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety. Please note that the reflective surface on this product is designed to enhance its thermal performance. As such, it will reflect light as well as heat, including ultraviolet light. Therefore, if this board is being installed during very bright or sunny weather, it is advisable to wear UV protective sunglasses or goggles, and if the skin is exposed for a significant period of time, to protect the bare skin with a UV block sun cream. The reflective facing used on this product can be slippery underfoot when wet. Therefore, it is recommended that any excess material should be contained to avoid a slip hazard. Warning – do not stand on or otherwise support your weight on this board unless it is fully supported by a load bearing surface.

Mechanical Fixing Patterns Recommended Fixing Patterns The recommended fixing patterns for Kingspan Thermaroof® TR26 LPC/FM are shown below. The number of fixings necessary should be assessed in accordance with BS 6399−2: 1997 (Loadings for buildings. Code of practice for wind loads) or BS / I.S. EN 1991–1.4: 2005 (National Annex to Eurocode 1. Actions on structures, General Actions, Wind Actions). The images below show the recommended fixing pattern, the number of fixings used and the resulting fixing rate shown as the number of fixings per m2.

6 No. per board (2.4 x 1.2 m board – 2.08 fixings / m2)

7 No. per board (2.4 x 1.2 m board – 2.43 fixings / m2)

8 No. per board (2.4 x 1.2 m board – 2.77 fixings / m2)

9 No. per board (2.4 x 1.2 m board – 3.12 fixings / m2)

10 No. per board (2.4 x 1.2 m board – 3.47 fixings / m2)

11 No. per board (2.4 x 1.2 m board – 3.81 fixings / m2)

12 No. per board (2.4 x 1.2 m board – 4.16 fixings / m2)

13 No. per board (2.4 x 1.2 m board – 4.51 fixings / m2)

14 No. per board (2.4 x 1.2 m board – 4.86 fixings / m2)

15 No. per board (2.4 x 1.2 m board – 5.20 fixings / m2)

16 No. per board (2.4 x 1.2 m board – 5.55 fixings / m2)

17 No. per board (2.4 x 1.2 m board – 5.90 fixings / m2)

NB Mechanical fixings e.g. telescopic tube fasteners, must be arranged in an even pattern. Fasteners at board edges must be located > 50 mm and < 150 mm from edges and corners of the board and not overlap board joints.

Product Details The Facings

Compressive Strength ®

The compressive strength of Kingspan Thermaroof® TR26 LPC/FM typically exceeds 150 kPa at 10% compression, when tested to BS / I.S. EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

Kingspan Thermaroof TR26 LPC/FM is faced on both sides with a low emissivity composite foil, autohesively bonded to the insulation core during manufacture.

The Core The core of Kingspan Thermaroof® TR26 LPC/FM is manufactured with Nilflam® technology, a high performance rigid thermoset polyisocyanurate (PIR) insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Water Vapour Resistance Adjusted for the effect of board joints, the product achieves a resistance greater than 100 MN.s/g, when tested in accordance with BS EN 12086: 1997 / I.S. EN 12086: 1998 (Thermal insulating products for building applications Determination of water vapour transmission properties). Kingspan Thermaroof® TR26 LPC/FM should always be installed over a vapour control layer or sealed metal deck (see ‘Water Vapour Control’ on page 6).

Standards and Approvals Kingspan Thermaroof® TR26 LPC/FM is manufactured to the highest standards in accordance with requirements BS 4841–4 (Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end–use applications. Specification for laminated boards (roofboards) with auto–adhesively or separately bonded facings for use as roofboard thermal insulation under single–ply roofing membranes).

Durability If correctly installed, Kingspan Thermaroof® TR26 LPC/FM can have indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Resistance to Solvents, Fungi & Rodents

Kingspan Thermaroof® TR26 LPC/FM is also manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

The insulation core is resistant to short–term contact with petrol and with most dilute acids, alkalis and mineral oils. However, it is recommended that any spills be cleaned off fully before the boards are installed. Ensure that safe methods of cleaning are used, as recommended by the suppliers of the spilt liquid. The insulation core is not resistant to some solvent–based adhesive systems, particularly those containing methyl ethyl ketone. Adhesives containing such solvents should not be used in association with this product. Damaged boards or boards that have been in contact with harsh solvents or acids should not be used.

Standard Dimensions Kingspan Thermaroof® TR26 LPC/FM is available in the following standard size: Nominal Dimension Length Width Insulant Thickness

Availability (m) (m) (mm)

The insulation core and facings used in the manufacture of Kingspan Thermaroof® TR26 LPC/FM resist attack by mould and microbial growth, and do not provide any food value to vermin.

2.4 1.2 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Fire Performance Kingspan Thermaroof® TR26 LPC/FM, when subjected to the British Standard fire test specified in the table below, will achieve the result shown, when waterproofed with a single–ply waterproofing membrane. Test

Result

BS 476–3: 2004 (External fire exposure roof test)

Dependent on single–ply membrane adopted

For further details please contact the Kingspan Insulation Technical Service Department (see rear cover) or alternatively search for “Thermaroof® TR26 LPC/FM” or approval reference number 388b/01 on www.redbooklive.com. Product

Thickness (mm)

Vapour Control

Grade

LPCB Ref No.

Kingspan 30 – 120 Sealed metal EXT − B 388b/01 Thermaroof® in a deck or TR26 LPC/FM single layer separate vapour control layer

Further details on the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

LPCB & FM Certification FM Certification Kingspan Thermaroof® TR26 LPC/FM is certified as achieving Class 1 Insulated Steel Deck Pass to Factory Mutual Research Standards 4450: 1989 (Approval Standard for Class 1 Insulated Steel Deck Pass) and 4470: 2010 (Approval Standard for Single–Ply, Polymer–Modified Bitumen Sheet, Built–Up Roof (BUR) and Liquid Applied Roof Assemblies for use in Class 1 Noncombustible Roof Deck Construction), subject to the conditions of approval as a roof insulation product for use in Class 1 roof constructions as described in the current edition of the Factory Mutual Research Approval Guide.

LPS 1181: Part 1 Certificate No. 388b/01

Thermal Properties The λ–values and R–values detailed below are quoted in accordance with BS / I.S. EN 13165: 2008 (Thermal insulation products for buildings – Factory made rigid polyurethane foam (PUR) products – Specification). Thermal Conductivity The boards achieve a thermal conductivity (λ–value) of 0.022 W/m.K. Thermal Resistance Thermal resistance (R–value) varies with thickness and is calculated by dividing the thickness of the board (expressed in metres) by its thermal conductivity. The resulting number is rounded down to the nearest 0.05 (m2.K/W).

Class 1 Roof Construction

LPCB Certification Metal deck roofing constructions incorporating Kingspan Thermaroof® TR26 LPC/FM, produced at Kingspan Insulation’s Pembridge and Castleblayney manufacturing facilities, have been successfully tested to LPS 1181: Part 1 (Requirements and Tests for Built–up Cladding and Sandwich Panel Systems for use as the External Envelope of Buildings). The table below indicates the LPCB listed approvals for Kingspan Thermaroof® TR26 LPC/FM.

Insulant Thickness (mm)

Thermal Resistance (m2.K/W)

70 80 85 90 95 100 105 110 115 120 125 130 135 140 150

3.15 3.60 3.85 4.05 4.30 4.50 4.75 5.00 5.20 5.45 5.65 5.90 6.10 6.35 6.80

NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Ireland

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Please contact the Kingspan Insulation Technical Service Department on the numbers below: UK

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd is a member of: The Single Ply Roofing Association

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Kingspan, Kooltherm, Nilflam, Thermaroof, Thermataper, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK, Ireland and other countries. All rights reserved. Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456. Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Insulation CI/Sfb

(27.9)

Rn7

Eighth Issue

March 2011

TR27 LPC/FM INSULATION FOR FLAT ROOFS WATERPROOFED WITH FULLY ADHERED SINGLE–PLY, PARTIALLY BONDED BUILT–UP FELT, MASTIC ASPHALT AND COLD LIQUID APPLIED WATERPROOFING G

G G G

G G G G G G

LPS 1181: Part 1 Certificate No. 388b/01

High performance rigid thermoset insulation – thermal conductivities as low as 0.024 W/m.K LPCB approved to LPS 1181: Part 1 FM approved for Class 1 steel deck roof assemblies Fully compatible with single–ply non–bituminous membranes that are fully bonded with solvent based adhesive systems Fully compatible with most bitumen based and mastic asphalt waterproofing systems Compatible with most green roof systems Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP and low GWP

Class 1 Roof Construction

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

Concrete Deck

The U−values in the tables that follow have been calculated, under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U–value and Condensation Risk Calculations, using the method detailed in BS / I.S. EN ISO 6946: 2007 (Building components and building elements. Thermal resistance and thermal transmittance. Calculation method) and using the conventions set out in BR443 (Conventions for U−value calculations). They are valid for the constructions shown in the details immediately above each table.

Dense Concrete Deck with Suspended Ceiling DPC to drain internally or externally as specified

Damp proof course (DPC)

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Waterproofing e.g. single–ply non–bituminous membrane

Kingspan Thermaroof® TR27 LPC/FM

These examples are based on Kingspan Thermaroof® TR27 LPC/FM waterproofed using either a fully adhered single−ply membrane, mastic asphalt, partially bonded built–up felt, or under a cold liquid applied waterproofing system. The insulation board is: fully bonded to a sealed metal deck, or a vapour control layer, which has itself been fully bonded to the type of deck stated for each application; or mechanically fixed through a sealed metal deck, or a vapour control layer, which has itself been loose–laid directly over the type of deck stated for each application. The ceiling, where applicable, is taken to be a 3 mm skim coated 12.5 mm plasterboard with a cavity between it and the underside of the deck.

50 mm screed to falls 150 mm concrete deck Vapour control layer 12.5 mm plasterboard fixed to 25 x 50 mm timber battens at 600 mm centres

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Figure 1 U–values (W/m2.K) for Various Thicknessses of Insulation and Waterproofing Systems Waterproofing System

NB When calculating U–values to BS EN ISO 6946: 2007, the type of mechanical fixing used may change the thickness of insulation required. These calculations assume telescopic tube fasteners with a thermal conductivity of 1.00 W/m.K or less, the effect of which is insignificant. NB For the purposes of these calculations the standard of workmanship has been assumed good and therefore the correction factor for air gaps has been ignored. NB The figures quoted are for guidance only. A detailed U–value calculation together with condensation risk analysis should be completed for each individual project. NB If your construction is different from those specified and / or to gain a comprehensive U−value calculation along with a condensation risk analysis for your project please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

Insulant Thickness (mm)

Partially Bonded Built−Up Felt

Mastic Asphalt

Fully Adhered Single−Ply / Cold Liquid Applied

80 85 90 100 110 115 120 125 130 135 140 145 150 80 + 80 85 + 90* 90 + 100* 100 + 110* 100 + 120*

0.25 0.24 0.22 0.20 0.19 0.18 0.17 0.17 0.16 0.16 0.15 0.15 0.14 0.13 0.12 0.11 0.10

* Where multiple layers of insulation of different thicknesses are used, the thickest layer should be installed as the outermost layer in the construction.

Timber Deck

Metal Deck

Timber Deck with Plasterboard Ceiling

Metal Deck with No Ceiling DPC to drain internally or externally as specified

Damp proof course (DPC)

DPC to drain internally or externally as specified

Damp proof course (DPC)

Waterproofing e.g. single–ply non–bituminous membrane

Kingspan Thermaroof® TR27 LPC/FM

Metal deck 18 mm plywood deck Vapour control layer 50 x 150 mm timber joists at 600 mm centres

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Vapour control layer (not required if metal deck is sealed)

Figure 2

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Figure 3

U–values (W/m2.K) for Various Thicknessses of Insulation and Waterproofing Systems

Waterproofing System

Insulant Thickness (mm)

Partially Bonded Built−Up Felt

Mastic Asphalt

Fully Adhered Single−Ply / Cold Liquid Applied

80 85 90 100 110 115 120 125 130 135 140 145 150 80 + 80 80 + 90* 85 + 90* 90 + 100* 100 + 110* 100 + 120*

0.25 0.24 0.22 0.20 0.19 0.18 0.17 0.17 0.16 0.16 0.15 0.15 0.14 0.13 0.13 0.12 0.11 0.10

0.25 0.24 0.22 0.20 0.19 0.18 0.17 0.17 0.16 0.16 0.15 0.15 0.14 0.14 0.13 0.12 0.11 0.10

Insulant Thickness (mm)

Partially Bonded Built−Up Felt

Mastic Asphalt

Fully Adhered Single−Ply / Cold Liquid Applied

90 95 100 110 120 125 130 135 140 145 150 80 + 80 80 + 90* 90 + 95* 100 + 100 100 + 110* 110 + 120*

0.25 0.24 0.22 0.19 0.19 0.18 0.17 0.17 0.16 0.16 0.15 0.14 0.13 0.12 0.11 0.10

* Where multiple layers of insulation of different thicknesses are used, the thickest layer should be installed as the outermost layer in the construction.

Green Roof Systems Extensive Green Roof Covering – Metal Deck with No Ceiling

Semi−intensive Green Roof Covering – Dense Concrete Deck with Suspended Ceiling

Extensive green roof covering

Semi−intensive green roof covering

Substrate to depth required

Filtration layer

Drainage layer

Roof barrier / protective layer(s)

Roof barrier / protective layer(s) Waterproofing e.g. single–ply non–bituminous membrane Vapour control layer (not required if metal deck is sealed) Metal decking (trough width appropriate to weight of green roof system applied)

Vapour control layer 12.5 mm plasterboard fixed to 25 x 50 mm timber battens at 600 mm centres

Kingspan Thermaroof TR27 LPC/FM

Waterproofing e.g. single–ply non–bituminous membrane

50 mm screed to falls

150 mm concrete deck

Figure 4

Kingspan Thermaroof® TR27 LPC/FM

Figure 5

U–values (W/m2.K) for Various Thicknessses of Insulation and Waterproofing Systems

Waterproofing System

Insulant Thickness (mm)

Partially Bonded Built−Up Felt

Mastic Asphalt

Fully Adhered Single−Ply / Cold Liquid Applied

90 95 100 110 120 125 130 135 140 145 150 80 + 80 80 + 90* 90 + 95* 100 + 100 100 + 110* 110 + 120*

0.25 0.24 0.22 0.19 0.19 0.18 0.17 0.17 0.16 0.16 0.15 0.14 0.13 0.12 0.11 0.10

* Where multiple layers of insulation of different thicknesses are used, the thickest layer should be installed as the outermost layer in the construction.

Insulant Thickness (mm)

Partially Bonded Built−Up Felt

Mastic Asphalt

Fully Adhered Single−Ply / Cold Liquid Applied

80 85 90 100 110 115 120 125 130 135 140 145 150 80 + 80 85 + 90* 90 + 100* 100 + 110* 100 + 120*

0.25 0.24 0.22 0.20 0.19 0.18 0.17 0.17 0.16 0.16 0.15 0.15 0.14 0.13 0.12 0.11 0.10

* Where multiple layers of insulation of different thicknesses are used, the thickest layer should be installed as the outermost layer in the construction.

Design Considerations Linear Thermal Bridging

Sustainability & Responsibility

Reasonable provision must be made to limit the effects of cold bridging. The design should ensure that roof–light or ventilator kerbs etc. are always insulated with the same thickness of Kingspan Thermaroof® TR27 LPC/FM as the general roof area. A 25 mm thick Kingspan Thermaroof® TR27 LPC/FM upstand should be used around the perimeter of the roof on the internal façade of parapets. A minimum distance of 300 mm should be maintained between the top of the insulation upstand and the bottom of the horizontal roof insulation. Wall insulation should also be carried up into parapets as high as the flat roof insulation upstand. Please contact the Kingspan Insulation Technical Service Department (see rear cover) for further advice.

Kingspan Insulation has a long–term commitment to sustainability and responsibility: as a manufacturer and supplier of insulation products; as an employer; as a substantial landholder; and as a key member of its neighbouring communities. A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

Specification Clause Kingspan Thermaroof® TR27 LPC/FM should be described in specifications as:– The roof insulation shall be Kingspan Thermaroof® TR27 LPC/FM ____mm thick: comprising a high performance rigid thermoset insulation core faced on both sides with a coated glass tissue facing. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); in accordance with the requirements of BS 4841–3 and BS 4841–4; under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them.

Environmental Impact & Responsible Sourcing Green Guide Rating An Ecoprofile, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, has been created for Kingspan Thermaroof® TR27 LPC/FM produced at Kingspan Insulation’s British manufacturing facilities. The BRE has assigned the product a 2008 Green Guide Summary Rating of A.

NBS Specifications Details also available in NBS Plus. NBS users should refer to clause(s): J21 420, J21 430, J31 335 (Standard and Intermediate) J21 10 (Minor Works)

Environmental Profiles Scheme Certificate Number ENP 409

Responsible Sourcing Kingspan Thermaroof® TR27 LPC/FM is manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer components of the product are also manufactured under management systems certified to EN ISO 14001: 2004.

G length / width / height of the building; G orientation of the building; G wind speed; G aspect (e.g. on a hill side); and G topographical value of the surrounding area.

Falls The fall on a flat roof, constructed using Kingspan Thermaroof® TR27 LPC/FM, is normally provided by the supporting structure being directed towards the rainwater outlets. The fall should be smooth and steep enough to prevent the formation of rainwater ponds. In order to ensure adequate drainage, BS 6229: 2003 (Flat roofs with continuously supported coverings. Code of practice) recommends uniform gradients of not less than 1 in 80. However, because of building settlement, it is advisable to design in even greater falls. These can be provided by a Kingspan Thermataper® LPC/FM tapered roofing system (see below).

Partially bonded built–up felt waterproofing should be laid, where applicable, in accordance with BS 8217: 2005 (Reinforced bitumen membranes for roofing. Code of practice). Kingspan Thermaroof® TR27 LPC/FM is also suitable for use with mastic asphalt waterproofing systems. Mastic asphalt waterproofing should be laid, where applicable, in accordance with BS 8218: 1998 (Code of practice for mastic asphalt roofing). Mastic asphalt should always be laid over an isolating layer of loose–laid Type 4A sheathing felt to BS 747: 2000 (Reinforced bitumen sheets for roofing. Specification). The exposed face of insulation upstands, at parapets and abutments, must be lined with 18 mm exterior grade plywood, prior to the mastic asphalt waterproofing being laid. The plywood is used as an anchor point for the expanded metal substrate onto which the vertical mastic asphalt is laid.

Tapered Roofing Kingspan Thermaroof® TR27 LPC/FM is also available in a tapered version, Kingspan Thermataper® TT47 LPC/FM, comprising a high performance rigid thermoset insulation core, manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP), faced on both sides with a coated glass tissue facing. Kingspan Thermataper® TT47 LPC/FM comes with a supporting design service. This ensures that the most cost−effective solution for a roof is identified and that the end result is a tapered system design which meets a roof’s rainwater run−off and insulation requirements. Further details of Kingspan Thermataper® TT47 LPC/FM are available from the Kingspan Insulation Tapered Roofing Department (see rear cover), which should be consulted as early as possible in the process of designing a roof.

When Kingspan Thermaroof® TR27 LPC/FM is to be used to insulate balconies, waterproofed with mastic asphalt with a porous promenade tile overlay, a 20 mm cork roofboard should be bitumen bonded to the Kingspan Thermaroof® TR27 LPC/FM prior to laying the Type 4A sheathing felt and mastic asphalt. Kingspan Thermaroof® TR27 LPC/FM is also suitable for use with some cold liquid applied waterproofing systems. When using Kingspan Thermaroof® TR27 LPC/FM with cold liquid applied waterproofing systems, a carrier membrane for the waterproofing must be installed over the insulation boards. Advice should be sought, from the waterproofing system manufacturer, about the specification of the carrier membrane and the compatibility of the waterproofing system with Kingspan Thermaroof® TR27 LPC/FM. For further advice please contact the Kingspan Insulation Technical Service Department (see rear cover).

Roof Waterproofing Kingspan Thermaroof® TR27 LPC/FM is suitable for use with most fully adhered single–ply waterproofing membranes. When using Kingspan Thermaroof® TR27 LPC/FM with fully adhered single–ply waterproofing membranes, the joints between boards and cut edges, immediately below the waterproofing membrane, must be taped with a min. 50 mm wide foil tape. Please contact the Kingspan Insulation Technical Service Department (see rear cover) to check waterproofing membrane and proprietary adhesive system compatibility. Advice should be sought, from the appropriate waterproofing membrane manufacturer, in relation to the requirement for the use of a fleece backed membrane with the waterproofing membrane in question.

NB Kingspan Thermaroof® TR27 LPC/FM is also suitable for use with mechanically fixed single–ply waterproofing membranes.

Kingspan Thermaroof® TR27 LPC/FM is also suitable for use with most bitumen based waterproofing systems including high performance types which incorporate a Type 3G perforated base layer to BS 747: 2000 (Reinforced bitumen sheets for roofing. Specification). The 3G felt layer should be laid dry and loose, mineral face down with a fully bonded perimeter zone. 6

Water Vapour Control

Roof Loading / Traffic

Kingspan Thermaroof® TR27 LPC/FM is suitable for use on access roof decks subject to limited foot traffic.

Kingspan Thermaroof TR27 LPC/FM should be installed over a separate vapour control layer, in new build roofs, unless it is being used in conjunction with a sealed metal deck. Regardless of the deck type it is recommended that a condensation risk analysis is carried out for every project.

Where inappropriate foot traffic is liable to occur, it is recommended that, for roofs waterproofed with mastic asphalt, a 20 mm cork roofboard is bitumen bonded to the Kingspan Thermaroof® TR27 LPC/FM prior to waterproofing, and the roof surface is protected by promenade tiles.

In refurbishment projects, where Kingspan Thermaroof® TR27 LPC/FM is to be installed over an existing bituminous waterproofing membrane, the membrane can be used as a vapour control layer, as long as it is in a good water tight condition. Where this is not the case, a separate vapour control layer should be installed.

For further advice on the acceptability of specific foot traffic regimes, please contact the Kingspan Insulation Technical Service Department (see rear cover).

The type of separate vapour control layer required will be dependent upon the chosen method of fixing the insulation boards.

Green Roofs Kingspan Thermaroof® TR27 LPC/FM is suitable for use under most green roof systems.

Green roof systems are a specialist design area. When designing a loose–laid insulated green roof assembly consideration needs to be given to the following.

When installing a loose–laid insulated green roof assembly, any insulation must be immediately over–laid with the green roof system, which must meet all of the requirements outlined above. Where these requirements cannot be ensured, the insulation must be mechanically fixed (see Sitework). For further information please contact the Kingspan Insulation Technical Service Department (see rear cover).

Sitework Board Size Selection G If consideration is being given to bonding Kingspan

G Roof–light or ventilator kerbs etc. should always insulated

with the same thickness of Kingspan Thermaroof® TR27 LPC/FM as the general roof area.

Thermaroof TR27 LPC/FM, either in hot bitumen or with the use of a suitable alternative proprietary adhesive system, it is recommended that 1.2 x 0.6 m boards (in Britain) or 1.2 x 1.2 m boards (in Ireland) are used.

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

upstand should be used around the perimeter of the roof on the internal façade of parapets.

G All sizes of board are suitable for mechanical fixing.

G A minimum distance of 300 mm should be maintained

Installing over Metal Decks

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

G Where an FM or LPCB approved construction is required,

G The waterproofing membrane is installed in accordance

please refer to ‘LPCB & FM Certification’ on page 14. G Metal decks should be clean, dry, without large

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets. G If using a sealed metal deck there is no requirement for a

Installing over Concrete Decks

separate vapour control layer.

G Concrete decks should be clean, dry, without large

G If the metal deck is not sealed, and the insulation boards

projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.

G If the insulation boards are to be bonded down, in order to

G If the metal deck is not sealed, and the insulation boards

are to be mechanically fixed, the vapour control layer should be loose–laid.

G If the insulation boards are to be mechanically fixed, the

G Where one run of the specified vapour control layer laps

vapour control layer should be loose–laid.

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G Where one run of the specified vapour control layer laps

G Turn up the vapour control layer at the edge of the roof

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

to a height appropriate to the specified waterproofing membrane.

G Turn up the vapour control layer at the edge of the roof

G Boards of Kingspan Thermaroof TR27 LPC/FM should

to a height appropriate to the specified waterproofing membrane.

be secured to the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixings’).

G Boards of Kingspan Thermaroof TR27 LPC/FM should ®

G Alternatively, the insulation boards should be bonded down

be bonded down by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer, or with the use of a suitable alternative proprietary adhesive system.

by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer / sealed metal deck, or with the use of a suitable alternative proprietary adhesive system.

G Alternatively, the insulation boards should be secured to

G Insulation boards should always be laid break–bonded,

the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixings’).

either with their long edges at right angles to the trough openings, or diagonally across the corrugation line, and with joints lightly butted. There should be no gaps at abutments.

G Insulation boards should always be laid break–bonded,

either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments.

G Roof–light or ventilator kerbs etc. should always insulated

G Insulation boards should always be laid break–bonded,

with the same thickness of Kingspan Thermaroof TR27 LPC/FM as the general roof area.

either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments.

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

G Joints between insulation boards should not coincide with

upstand should be used around the perimeter of the roof on the internal façade of parapets.

those between the plywood sheets.

G A minimum distance of 300 mm should be maintained

G Roof–light or ventilator kerbs etc. should always insulated

with the same thickness of Kingspan Thermaroof® TR27 LPC/FM as the general roof area.

between the top of the insulation upstand and the bottom of the horizontal roof insulation. G The waterproofing membrane is installed in accordance

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

upstand should be used around the perimeter of the roof on the internal façade of parapets. G The waterproofing membrane is installed in accordance

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

Installing over Plywood Decks G Plywood decks should be clean, dry, without large

projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.

Installing over Existing Flat Roofs

G If the insulation boards are to be bonded down, in order

G The existing waterproofing membrane surface should be

to ensure an adequate bond between the plywood deck and the vapour control layer, the plywood surface should be suitably primed, in accordance with the primer manufacturer’s instructions, prior to the application of the hot bitumen, or suitable alternative proprietary adhesive system, used to bond the vapour control layer to the deck.

clean, dry, without large projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets. G Where the existing waterproofing membrane is not fit for

G Alternatively, the vapour control layer can be nailed to the

deck, in which case the nail heads will become sealed with the subsequent bonding of the insulation boards to the vapour control layer. G If the insulation boards are to be mechanically fixed, the

G Where one run of the specified vapour control layer laps

vapour control layer should be loose–laid.

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G Where one run of the specified vapour control layer laps

G Turn up the vapour control layer at the edge of the roof to

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

a height appropriate to the specified new waterproofing membrane.

G Turn up the vapour control layer at the edge of the roof

G Boards of Kingspan Thermaroof TR27 LPC/FM should ®

to a height appropriate to the specified waterproofing membrane.

be bonded down by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer, or with the use of a suitable alternative proprietary adhesive system.

G Boards of Kingspan Thermaroof TR27 LPC/FM should ®

be bonded down by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer, or with the use of a suitable alternative proprietary adhesive system.

G Alternatively, the insulation boards should be secured to

the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixings’).

G Alternatively, the insulation boards should be secured to

G Insulation boards should always be laid break–bonded,

the deck using mechanical fixings e.g. telescopic tube fasteners (see ‘Mechanical Fixings’).

either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments.

Mechanical Fixings G The number of mechanical fixings required to fix

G Roof–light or ventilator kerbs etc. should always insulated

Kingspan Thermaroof® TR27 LPC/FM will vary with the geographical location of the building, the local topography, and the height and width of the roof concerned along with the deck type.

with the same thickness of Kingspan Thermaroof TR27 LPC/FM as the general roof area. G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

upstand should be used around the perimeter of the roof on the internal façade of parapets.

G A minimum of 4 fixings are required to secure 1.2 x 0.6 m

G A minimum distance of 300 mm should be maintained

boards of Kingspan Thermaroof® TR27 LPC/FM to the deck.

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

G A minimum of 5 fixings are required to secure 1.2 x 1.2 m

G The waterproofing membrane is installed in accordance

boards of Kingspan Thermaroof® TR27 LPC/FM to the deck.

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

G A minimum of 6 fixings are required to secure 2.4 x 1.2 m

boards of Kingspan Thermaroof® TR27 LPC/FM to the deck.

Installing over Existing Composite Panel Roofs

G The requirement for additional fixings should be assessed

G If the existing profile provides inadequate support for the

insulation boards, the existing roof should be over–boarded, e.g. with plywood, prior to their installation.

G Mechanical fixings must be arranged in an even pattern.

G Boards of Kingspan Thermaroof TR27 LPC/FM should ®

G Fasteners at insulation board edges must be located

be secured to the deck using mechanical fixings. Please refer to the Kingspan Insulation Technical Advice Service (see rear cover) for advice on fixing specification.

> 50 and < 150 mm from edges and corners of the board and not overlap board joints.

G Insulation boards should always be laid break–bonded and

G Please refer to page 13 for recommended fixing patterns. G Each fixing should incorporate a square or circular plate

washer (min. 50 x 50 mm or 50 mm diameter). G If two layers of insulation are to be installed, the base layer

should be mechanically fixed with minimum 1 No. fixing in the centre of the insulation board before fixing the top layer as described above. G Where alternative mechanical fixing systems are specified,

G Roof–light or ventilator kerbs etc. should always insulated

such as bar fixing systems, the specified system must give similar restraint to the insulation board as would be attained by the use of conventional telescopic tube fasteners.

with the same thickness of Kingspan Thermaroof® TR27 LPC/FM as the general roof area. G The waterproofing membrane is installed in accordance

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation boards.

Installing in Two Layers

General

G In situations where two layers of insulation are required,

both layers should be installed in the same manner, as detailed in the preceding sections. However, if mechanical fixing methods are to be employed, refer to ‘Mechanical Fixings’ for guidance on the number of fixings to be used in each layer. G In all cases, the layers should be horizontally offset

Reflective Coatings G Bitumen based built up waterproofing systems laid over Kingspan Thermaroof® TR27 LPC/FM should always incorporate a solar reflective layer such as chippings or a specialist coating.

relative to each other so that, as far as possible, the board joints in the two adjacent layers do not coincide with each other (see Figure 6). First insulation layer

Daily Working Practice G At the completion of each day’s work, or whenever work is interrupted for extended periods of time, a night joint must be made in order to prevent water penetration into the roof construction. Cutting G Cutting should be carried out either by using a fine toothed saw, or by scoring with a sharp knife, snapping the board over a straight edge and then cutting the facing on the other side. G Ensure accurate trimming to achieve close–butting joints

Second insulation layer, if required, offset relative to first.

and continuity of insulation.

Figure 6 Offsetting of Multiple Insulation Layers

Availability ® G Kingspan Thermaroof TR27 LPC/FM is available through specialist insulation distributors and selected roofing merchants throughout the UK and Ireland. Packaging and Storage

G The polyethylene packaging of Kingspan Insulation

products, which is recyclable, should not be considered adequate for outdoor protection. G Ideally, boards should be stored inside a building.

Mechanical Fixing Patterns Recommended Fixing Patterns The recommended fixing patterns for Kingspan Thermaroof® TR27 LPC/FM are shown below. The number of fixings necessary should be assessed in accordance with BS 6399−2: 1997 (Loadings for buildings. Code of practice for wind loads) or BS / I.S. EN 1991−1.4: 2005 (National Annex to Eurocode 1. Actions on structures, General Actions, Wind Actions). The images below show recommended fixing patterns, the number of fixings used and the resulting fixing density (number of fixings per m2).

4 No. per board (1.2 x 0.6 m board – 5.55 fixings / m2)

5 No. per board (1.2 x 0.6 m board – 6.94 fixings / m2) (1.2 x 1.2 m board – 3.47 fixings / m2)

A minimum of 4 fixings are required to secure a 1.2 m x 0.6 m insulation board to the deck, a minimum of 5 fixings are required to secure a 1.2 x 1.2 m insulation board to the deck and a minimum of 6 fixings are required to secure a 2.4 x 1.2 m insulation board to the deck. Therefore, of the two fixing patterns above, that on the left can only be applied for a 1.2 x 0.6 m insulation board and that on the right for a 1.2 x 0.6 m insulation board or a 1.2 x 1.2 m insulation board.

6 No. per board (1.2 x 0.6 m board – 8.33 fixings / m2) (1.2 x 1.2 m board – 4.16 fixings / m2) (2.4 x 1.2 m board – 2.08 fixings / m2)

7 No. per board (1.2 x 0.6 m board – 9.72 fixings / m2) (1.2 x 1.2 m board – 4.86 fixings / m2) (2.4 x 1.2 m board – 2.43 fixings / m2)

8 No. per board (1.2 x 0.6 m board – 11.11 fixings / m2) (1.2 x 1.2 m board – 5.55 fixings / m2) (2.4 x 1.2 m board – 2.77 fixings / m2)

9 No. per board (1.2 x 0.6 m board – 12.50 fixings / m2) (1.2 x 1.2 m board – 6.25 fixings / m2) (2.4 x 1.2 m board – 3.12 fixings / m2)

10 No. per board (1.2 x 0.6 m board – 13.88 fixings / m2) (1.2 x 1.2 m board – 6.94 fixings / m2) (2.4 x 1.2 m board – 3.47 fixings / m2)

11 No. per board (1.2 x 0.6 m board – 15.27 fixings / m2) (1.2 x 1.2 m board – 7.63 fixings / m2) (2.4 x 1.2 m board – 3.81 fixings / m2)

12 No. per board (1.2 x 0.6 m board – 16.66 fixings / m2) (1.2 x 1.2 m board – 8.33 fixings / m2) (2.4 x 1.2 m board – 4.16 fixings / m2)

13 No. per board (1.2 x 0.6 m board – 18.05 fixings / m2) (1.2 x 1.2 m board – 9.02 fixings / m2) (2.4 x 1.2 m board – 4.51 fixings / m2)

14 No. per board (1.2 x 0.6 m board – 19.44 fixings / m2) (1.2 x 1.2 m board – 9.72 fixings / m2) (2.4 x 1.2 m board – 4.86 fixings / m2)

15 No. per board (1.2 x 0.6 m board – 20.83 fixings / m2) (1.2 x 1.2 m board – 10.41 fixings / m2) (2.4 x 1.2 m board – 5.20 fixings / m2)

Product Details The Facings

Standard Dimensions ®

Kingspan Thermaroof® TR27 LPC/FM is available in the following standard size(s):

Kingspan Thermaroof TR27 LPC/FM is faced on both sides with a coated glass tissue, autohesively bonded to the insulation core during manufacture.

Nominal Dimension Length Width Insulant Thickness

The Core The core of Kingspan Thermaroof® TR27 LPC/FM is manufactured with Nilflam® technology, a high performance rigid thermoset polyisocyanurate (PIR) insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Availability (m) (m) (mm)

1.2* 1.2** 2.4 0.6* 1.2** 1.2 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

* for product produced at Kingspan Insulation’s British manufacturing facilities only. ** for product produced at Kingspan Insulation’s Irish manufacturing facility only.

Compressive Strength The compressive strength of Kingspan Thermaroof® TR27 LPC/FM typically exceeds 150 kPa at 10% compression, when tested to BS / I.S. EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

Standards and Approvals Kingspan Thermaroof® TR27 LPC/FM is manufactured to the highest standards in accordance with the requirements of both BS 4841–3 (Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end–use applications. Specification for laminated boards (roofboards) with auto–adhesively or separately bonded facings for use as roofboard thermal insulation under built–up bituminous roofing membranes) and BS 4841–4 (Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end–use applications. Specification for laminated boards (roofboards) with auto–adhesively or separately bonded facings for use as roofboard thermal insulation under single−ply roofing membranes).

Water Vapour Resistivity The product typically achieves a resistivity greater than 300 MN.s/g.m, when tested in accordance with BS EN 12086: 1997 / I.S. EN 12086: 1998 (Thermal insulating products for building applications Determination of water vapour transmission properties). Kingspan Thermaroof® TR27 LPC/FM should always be installed over a vapour control layer or sealed metal deck (see ‘Water Vapour Control’ on page 7).

Durability

Kingspan Thermaroof® TR27 LPC/FM is also manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

If correctly installed, Kingspan Thermaroof® TR27 LPC/FM can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Resistance to Solvents, Fungi & Rodents The insulation core is resistant to short–term contact with petrol and with most dilute acids, alkalis and mineral oils. However, it is recommended that any spills be cleaned off fully before the boards are installed. Ensure that safe methods of cleaning are used, as recommended by the suppliers of the spilt liquid. The insulation core is not resistant to some solvent–based adhesive systems, particularly those containing methyl ethyl ketone. Adhesives containing such solvents should not be used in association with this product. Damaged boards or boards that have been in contact with harsh solvents or acids should not be used.

Kingspan Thermaroof® TR27 LPC/FM, produced at Kingspan Insulation’s Pembridge and Selby manufacturing facilities, is covered by BBA Certificate 06/4372.

APPROVAL INSPECTION TESTING CERTIFICATION CERTIFICATE No 06/4372

The insulation core and facings used in the manufacture of Kingspan Thermaroof® TR27 LPC/FM resist attack by mould and microbial growth, and do not provide any food value to vermin.

Fire Performance Kingspan Thermaroof® TR27 LPC/FM, when subjected to the British Standard fire test, specified in the table below, will achieve the result shown, when waterproofed with a single–ply waterproofing membrane. Test

Result

BS 476–3: 2004 (External fire exposure roof test)

Dependent on single–ply membrane adopted

For further details please contact the Kingspan Insulation Technical Service Department (see rear cover) or alternatively search for “Thermaroof® TR27 LPC/FM” or approval reference number 388b/02 on www.redbooklive.com. Product

Result

BS 476–3: 2004 (External fire exposure roof test)

FAA Rating

Vapour Control

Grade

LPCB Ref No.

Kingspan 30 – 120 Sealed metal EXT − B 388b/02 Thermaroof® in a deck or TR27 LPC/FM single layer separate vapour control layer

Kingspan Thermaroof® TR27 LPC/FM, when subjected to the British Standard fire test, specified in the table below, will achieve the result shown when waterproofed with 3 layer built–up felt and a loading coat of 10 mm chippings. For specifications without the chippings please consult the manufacturer of the mineral surfaced cap sheet for their fire classification details. Test

Thickness (mm)

LPS 1181: Part 1 Certificate No. 388b/02

Further details on the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

LPCB & FM Certification FM Certification Kingspan Thermaroof® TR27 LPC/FM is certified as achieving Class 1 Insulated Steel Deck Pass to Factory Mutual Research Standards 4450: 1989 (Approval Standard for Class 1 Insulated Steel Deck Pass) and 4470: 2010 (Approval Standard for Single–Ply, Polymer–Modified Bitumen Sheet, Built–Up Roof (BUR) and Liquid Applied Roof Assemblies for use in Class 1 Non–combustible Roof Deck Construction), subject to the conditions of approval as a roof insulation product for use in Class 1 roof constructions as described in the current edition of the Factory Mutual Research Approval Guide.

Thermal Conductivity The boards achieve a thermal conductivity (λ–value) of: 0.025 W/m.K (insulant thickness 80 – 119 mm); and 0.024 W/m.K (insulant thickness ≥ 120 mm). Thermal Resistance Thermal resistance (R–value) varies with thickness and is calculated by dividing the thickness of the board (expressed in metres) by its thermal conductivity. The resulting number is rounded down to the nearest 0.05 (m2.K/W).

Class 1 Roof Construction

LPCB Certification Metal deck roofing constructions incorporating Kingspan Thermaroof® TR27 LPC/FM, produced at Kingspan Insulation’s Pembridge and Castleblayney manufacturing facilities, have been successfully tested to LPS 1181: Part 1 (Requirements and Tests for Built–up Cladding and Sandwich Panel Systems for use as the External Envelope of Buildings). The table below indicates the LPCB listed approvals for Kingspan Thermaroof® TR27 LPC/FM.

Insulant Thickness (mm)

Thermal Resistance (m2.K/W)

80 85 90 95 100 110 120 125 130 135 140 145 150

3.20 3.40 3.60 3.80 4.00 4.40 5.00 5.20 5.40 5.60 5.80 6.00 6.25

NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Kingspan Insulation Company Details

Insulation Product Benefits

Kingspan Insulation Ltd is part of the Kingspan Group plc., one of Europe’s leading construction product manufacturers. The Kingspan Group was formed in the late 1960s and is a publicly quoted group of companies headquartered in Kingscourt, County Cavan, Ireland.

specific U–value.

Kingspan Insulation Ltd is a market leading manufacturer of premium and high performance rigid insulation products and insulated systems for building fabric and building services applications.

G Rigid thermoset insulation core is Class 0, as defined

by the Building Regulations in England, Wales & Ireland, and Low Risk, as defined by the Building Standards in Scotland. G Rigid thermoset insulation core achieves the best possible

Products & Applications

rating of < 5% smoke obscuration when tested to BS 5111: Part 1: 1974.

G Manufactured with a blowing agent that has zero Ozone

Depletion Potential (ODP) and low Global Warming Potential (GWP).

Insulation for: G Pitched Roofs

Kingspan Therma™ Range Products G With a thermal conductivity of 0.022–0.027 W/m.K these are amongst the more thermally efficient insulation products commonly used.

G Flat Roofs G Green Roofs G Cavity Walls

G Each product achieves the required fire performance for its

G Solid Walls

intended application.

G Timber and Steel Framing

G Manufactured with a blowing agent that has zero Ozone

G Insulated Cladding Systems

Depletion Potential (ODP) and low Global Warming Potential (GWP).

G Insulated Render Systems G Floors

G Soffits G Ductwork

Further Solutions:

G Insulated Dry–Lining

G Each product achieves the required fire performance for its

G Tapered Roofing Systems

intended application.

G Cavity Closers

G Manufactured with a blowing agent that has zero Ozone

G Kingspan KoolDuct® Pre–Insulated Ducting

Depletion Potential (ODP).

G Kingspan nilvent Breathable Membranes ®

G Kingspan TEK® Building System

G Unaffected by air infiltration – a problem that can be

experienced with mineral fibre and which can reduce thermal performance. G Safe and easy to install – non–fibrous. G If installed correctly, can provide reliable long term thermal

performance over the lifetime of the building.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Ireland

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Please contact the Kingspan Insulation Technical Service Department on the numbers below: UK

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd is a member of: The Single Ply Roofing Association The Mastic Asphalt Council (MAC)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Insulation CI/Sfb

(27.9)

Sixth Issue

Rn7

March 2011

TR31 STRUCTURAL INSULATION / FSC CERTIFIED PLYWOOD COMPOSITE FOR FLAT ROOFS WATERPROOFED WITH PARTIALLY BONDED BUILT–UP FELT

G G G G G G G

High performance rigid thermoset insulation – thermal conductivity 0.022 W/m.K Insulation, vapour control layer and decking in one board Proven reputation as a quality composite roof deck Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP and low GDP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Timber Deck

Assumptions The U−values in the tables that follow have been calculated, under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U–value and Condensation Risk Calculations, using the method detailed in BS / I.S. EN ISO 6946: 2007 (Building components and building elements. Thermal resistance and thermal transmittance. Calculation method) and using the conventions set out in BR443 (Conventions for U−value calculations). They are valid for the constructions shown in the detail immediately above each table.

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Insulation angle fillet Perimeter fully bonded Waterproofing e.g. 3 layer built–up felt utilising 3G felt base layer partially bonded 3G base layer 50 x 150 mm timber joists

These examples are based on Kingspan Thermaroof® TR31, mechanically fixed to 150 mm timber roof joists at the centres shown, waterproofed using partially bonded built−up felt with the surface covered with mineral chippings. The ceiling is taken to be a 3 mm skim coated 12.5 mm plasterboard (of type shown in the examples) with a non–ventilated low emissivity cavity between it and the underside of the deck.

Timber stop batten

Plasterboard / foil backed plasterboard** Kingspan Thermaroof® TR31

Unventilated cavity (low emissivity)

Water vapour resistant non–setting, gun–grade mastic sealant applied continuously to upper surface of all joists / noggins corresponding with board edges to provide continuous vapour control layer from foil facer on underside of Kingspan Thermaroof® TR31**

Kingspan Kooltherm® K7 Pitched Roof Board Foil facer to underside of Kingspan Thermaroof® TR31

NB When calculating U–values to BS / I.S. EN ISO 6946: 2007, the type of mechanical fixing used may change the thickness of insulation. Calculations assume the use of stainless steel oval headed fixings with a cross sectional area of 12.32 mm2.

Figure 1

NB For the purposes of these calculations the standard of workmanship has been assumed good and therefore the correction factor for air gaps has been ignored.

U–values (W/m2.K)

NB The figures quoted are for guidance only. A detailed U–value calculation together with condensation risk analysis should be completed for each individual project.

Thickness Product Kingspan Thickness of Kooltherm® K7 Kingspan Pitched Roof Thermaroof® Board (mm) TR31* (mm)

NB If your construction is different from those specified and / or to gain a comprehensive U−value calculation along with a condensation risk analysis for your project please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

U–value Table Key

0 0 0 0 0 0 0 0 0 20 25 35 45 50 55 60** 70** 80** 90** 105** 115**

81 86 91 96 101 106 111 116 121 121 126 126 126 126 126 126 126 126 126 126 126

Timber Joist Centres (mm) 400

600

0.25 0.24 0.23 0.22 0.21 0.20 0.19 0.18 0.16 0.15 0.15 0.14 0.14 0.13 0.13 0.12 0.12 0.11 0.11 0.10

0.25 0.23 0.22 0.21 0.21 0.20 0.19 0.18 0.16 0.15 0.15 0.14 0.13 0.13 0.12 0.12 0.11 0.11 0.10 0.10

* Product thickness = insulant thickness + 6 mm plywood.

**Where Kingspan Kooltherm® K7 Pitched Roof Board ≥ 60 mm thick is installed between joists the use of mastic sealant over the joists can result in an interstitial condensation risk. In order to avoid this risk, mastic sealant should not be applied over the joists and a separate vapour control layer should be installed. The separate vapour control layer should consist of either a foil backed vapour check plasterboard or a layer of polythtene sheeting installed between the plasterboard and the underside of the joists.

Design Considerations Linear Thermal Bridging

Specification Clause

Reasonable provision must be made to limit the effects of cold bridging. The design should ensure that roof–light or ventilator kerbs etc. are always insulated with the same thickness of Kingspan Thermaroof® TR31 as the general roof area. A 25 mm thick Kingspan Thermaroof® TR27 LPC/FM upstand should be used around the perimeter of the roof on the internal façade of parapets. A minimum distance of 300 mm should be maintained between the top of the insulation upstand and the bottom of the horizontal roof insulation. Wall insulation should also be carried up into parapets as high as the flat roof insulation upstand. Please contact the Kingspan Insulation Technical Service Department (see rear cover) for further advice.

Kingspan Thermaroof® TR31 should be described in specifications as:– The roof insulation shall be Kingspan Thermaroof® TR31 ____mm thick: comprising a high performance rigid thermoset insulation core faced with an FSC certified 6 mm nominal thickness WBP exterior grade plywood on its upper surface and a low emissivity composite foil facing on its lower surface. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); in accordance with the requirements of BS 4841–3 and BS 4841–4; under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them.

Environmental Impact & Responsible Sourcing

NBS Specifications

Green Guide Rating An Ecoprofile, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, has been created for the insulation component Kingspan Thermaroof® TR31 produced at Kingspan Insulation’s British manufacturing facilities. The BRE has assigned the product a 2008 Green Guide Summary Rating of A+.

Details also available in NBS Plus. NBS users should refer to clause(s): J41 420, J41 430 (Standard and Intermediate) J41 10 (Minor Works)

Wind Loading Wind loadings should be assessed in accordance with BS 6399–2: 1997 (Loading for Buildings. Code of practice for wind loads) or BS / I.S. EN 1991–1–4: 2005 (National Annex to Eurocode 1 Actions on Structures. General Actions. Wind Actions) taking into account:

Environmental Profiles Scheme Certificate Number ENP 409

G length / width / height of the building; G orientation of the building;

Responsible Sourcing Kingspan Thermaroof® TR31 is manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer components of the product are also manufactured under management systems certified to EN ISO 14001: 2004. The plywood component of the product is FSC certified.

G wind speed; G aspect (e.g. on a hill side); and G topographical value of the surrounding area.

NB The above information is correct at the time of writing. Please confirm the point of need by contacting Kingspan Insulation’s Technical Service Department (see rear cover), from which copies of Kingspan Insulation and its suppliers’ ISO 14001 and FSC certificates can be obtained along with confirmation of Kingspan Insulation’s products’ Green Guide ratings.

Falls The fall on a flat roof, constructed using Kingspan Thermaroof® TR31, is normally provided by the supporting structure being directed towards the rainwater outlets. The fall should be smooth and steep enough to prevent the formation of rainwater pools. In order to ensure adequate drainage, BS 6229: 2003 (Flat roofs with continuously supported coverings. Code of practice) recommends uniform gradients of not less than 1 in 80. However, because of building settlement, it is advisable to ‘design in’ even greater falls. These can be provided by a Kingspan Thermataper® LPC/FM tapered roofing system. Further details of the Kingspan Thermataper® LPC/FM range and its supporting design service are available from the Kingspan Insulation Tapered Roofing Department (see rear cover).

Mastic asphalt should always be laid over an isolating layer of Type 4A sheathing felt to BS 747: 2000 (Reinforced bitumen sheets for roofing. Specification). The exposed face of insulation upstands, at parapets and abutments, must be lined with 18 mm exterior grade plywood instead of 20 mm cork roofboard, prior to the mastic asphalt waterproofing being laid. The plywood is used as an anchor point for the expanded metal substrate onto which the vertical mastic asphalt is laid. It is also possible to use Kingspan Thermaroof® TR31 with certain single–ply waterproofing membranes. Please contact the Kingspan Insulation Technical Service Department (see rear cover) for further advice.

Water Vapour Control Roofs, insulated only with Kingspan Thermaroof® TR31 over joists, and roofs with 121 / 126 mm Kingspan Thermaroof® TR31 over joists and < 60 mm of Kingspan Kooltherm® K7 Pitched Roof Board between joists, do not require a separate vapour control layer. By combining the water vapour resistance of the foil faced underside of Kingspan Thermaroof® TR31 with the use of a suitable water vapour resistant, non–setting, gun–grade mastic sealant, applied to the upper surface of all supporting timbers, a perfectly adequate vapour control layer can be formed. A continuous bead of vapour resistant mastic sealant should also be applied between the outside–top corner of all roof perimeter joists and noggins, and adjacent upstands and parapets.

Roof Waterproofing Kingspan Thermaroof® TR31 is suitable for use with most bitumen based waterproofing systems including high performance types which incorporate a Type 3G perforated base layer to BS 747: 2000 (Reinforced bitumen sheets for roofing. Specification). The 3G felt layer should be laid dry and loose, mineral face down with a fully bonded perimeter zone. Partially bonded built–up felt waterproofing should be laid, where applicable, in accordance with BS 8217: 2005 (Reinforced bitumen membranes for roofing. Code of practice). It is possible to use Kingspan Thermaroof® TR31 with high performance bitumen based waterproofing systems which incorporate 2 layer fully bonded felts. When using Kingspan Thermaroof® TR31 with fully bonded built–up felt waterproofing, it is recommended that an overlay of 20 mm cork roofboard is fixed to the plywood surface of the sheets of Kingspan Thermaroof® TR31, using hot bitumen bonding or felt nailing, prior to the installation of the waterproofing. The fibreboard acts as a surface to allow full bonding of the built–up felt. Fully bonded built–up felt waterproofing should be laid, where applicable, in accordance with BS 8217: 2005 (Reinforced bitumen membranes for roofing. Code of practice).

Where 121 / 126 mm Kingspan Thermaroof® TR31 is installed over joists with Kingspan Kooltherm® K7 Pitched Roof Board ≥ 60 mm thick installed between joists, the application of mastic sealant to the upper surface of all supporting timbers can result in an interstitial condensation risk. In order to avoid this risk, mastic sealant should not be applied over the joists, and a separate vapour control layer should be installed under the joists instead. The separate vapour control layer should consist of either a foil backed vapour check plasterboard or a layer of polythene sheeting installed between the plasterboard and the underside of the joists. The junction between the perimeter of the vapour control layer and adjacent walls should be sealed. There is a limit to the thickness of Kingspan Kooltherm® K7 Pitched Roof Board that can be installed, for any particular thickness of Kingspan Thermaroof® TR31, in that, in order to avoid a condensation risk, the thermal resistance of the insulation component of Kingspan Thermaroof® TR31 must always be greater than that of the Kingspan Kooltherm® K7 Pitched Roof Board.

It is also possible to use Kingspan Thermaroof® TR31 with mastic asphalt waterproofing systems. When using Kingspan Thermaroof® TR31 with mastic asphalt, it is recommended that an overlay of 20 mm cork roofboard is fixed to the plywood surface of the sheets of Kingspan Thermaroof® TR31, using hot bitumen bonding or felt nailing, prior to the installation of the waterproofing. The cork roofboard acts as a heat soak for the mastic asphalt. Mastic asphalt waterproofing should be laid, where applicable, in accordance with BS 8218: 1998 (Code of practice for mastic asphalt roofing).

NB These recommendations are based on condensation risk calculations that assume internal conditions consistent with dwellings with low occupancy. If this occupancy assumption is incorrect, if you intend to use between joist insulation with any thickness of Kingspan Thermaroof® TR31 other than 121 or 126 mm, if your construction is any different to those specified and / or to gain a comprehensive U−value calculation along with a condensation risk analysis of your project please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

Sitework Over Joist Insulation Only

Roof Loading / Traffic

G A continuous bead of vapour resistant mastic sealant

Kingspan Thermaroof TR31 is suitable for use on access roof decks subject to limited foot traffic.

should be applied between the outside–top corner of all roof perimeter joists and noggins, and adjacent upstands and parapets.

Supporting joists should be placed at maximum 600 mm centres and noggins should be provided to coincide with the board edges.

G Kingspan Thermaroof TR31 should be fixed, plywood ®

uppermost, directly onto minimum 50 mm wide joists set at maximum 600 mm centres (for maintenance access purposes) or maximum 400 mm centres (where continuous or excessive foot traffic is expected).

Where inappropriate foot traffic is liable to occur, it is recommended that the supporting roof joists are spaced at maximum 400 mm centres. Noggins should be provided, as described above, and the roof surface should be protected by promenade tiles. For further advice on the acceptability of specific foot traffic regimes, please contact the Kingspan Insulation Technical Service Department (see rear cover).

G In order to form a continuous vapour control layer from the

foil underside of the sheets of Kingspan Thermaroof® TR31, a bead of water vapour resistant, non–setting, gun–grade mastic sealant, wide enough to accommodate two sheet edges butted side by side, should be applied to the upper surface of all supporting joists and noggins (see Figure 2).

Ceiling Details The underside of Kingspan Thermaroof® TR31 is not suitable to form a decorative internal finish to the roof. Therefore, it is recommended that Kingspan Thermaroof® TR31 should always be underdrawn by a separate ceiling such as plasterboard or similar fire resistant material. Where the roof joists are to be left exposed, the plasterboard should be fixed between joists to minimum 25 x 25 mm timber battens. The 25 mm cavity between the underside of the sheets of Kingspan Thermaroof® TR31 and the plasterboard ceiling can be used to run services.

Lightning Protection Building designers should give consideration to the requirements of BS / I.S. EN 62305: 2006 (Protection against lightning).

Figure 2 – Sheets laid into non setting mastic G Sheets should be laid with the long edge along the joists

and shorter edge joints should be staggered and butted (approximately 2 mm gap) ensuring there is a minimum bearing of 20 mm per sheet edge over the supporting timber (see Figure 3).

Figure 3 – Staggered joints over roof joists 5

G Timber noggins (minimum 50 x 50 mm) should

G The waterproofing membrane is installed in accordance

be used to fully support any free edges of Kingspan Thermaroof® TR31 e.g. short edges, trimmers to openings etc.

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation sheets.

G The number of mechanical fixings required to fix sheets of

Between and Over Joist Insulation

Kingspan Thermaroof® TR31 will vary with the geographical location of the building, the local topography, and the height and width of the roof concerned.

G For constructions where the Kingspan Thermaroof TR31 ®

is 121 / 126 mm and the Kingspan Kooltherm® K7 Pitched Roof Board installed between joists is < 60 mm, the installation of Kingspan Thermaroof® TR31 is carried out as outlined in ‘Over Joist Insulation Only’.

G As a minimum, sheets should be fixed with suitable low

profile oval head screw fixings placed at 200 mm centres around the board edges and at 300 mm centres along any intermediate supporting timbers.

G For constructions where the Kingspan Thermaroof TR31 ®

G The requirement for additional fixings should be assessed

is 121 / 126 mm and the Kingspan Kooltherm® K7 Pitched Roof Board installed between joists is ≥ 60 mm thick, mastic sealant should not be applied over the joists and a separate vapour control layer should be installed under the joists instead.

in accordance with BS 6399–2: 1997 (Loadings for buildings. Code of practice for wind loads) or BS / I.S. EN 1991−1.4: 2005 (National Annex to Eurocode 1. Actions on structures, General Actions, Wind Actions). G Fixings should be no less than 10 mm from sheet edges

G The separate vapour control layer should consist of either

and no less than 50 mm from sheet corners.

a foil backed vapour check plasterboard, or a layer of polythene sheeting installed between the plasterboard and the underside of the joists. The junction between the perimeter of the vapour control layer and adjacent walls should be sealed.

G Where two sheets are secured to the same joist, nail /

screws should be staggered. G Fixings should penetrate supporting timbers by a depth

of minimum 35 mm.

G In all other respects installation of Kingspan Thermaroof

G When securing sheets, whether nailing or screwing, care

TR31 is carried out as outlined in ‘Over Joist Insulation Only’.

must be taken not to over–drive / screw. G Nails / screw heads should finish flush with the plywood

G Regardless of thickness, the installation of Kingspan

surface.

Kooltherm® K7 Pitched Roof Board proceeds as follows.

For more information on board fixings refer to: Ancon Building Products www.ancon.co.uk

+44 (0) 114 275 5224

Ejot UK Limited www.ejot.co.uk

+44 (0) 1977 687 040

SFS Intec Limited www.sfsintec.biz/uk

+44 (0)113 2085 500

MAK Fasteners www.makfasteners.com

+353 (0) 1 451 9900

Tech Fasteners www.techfasteners.ie

+353 (0) 1 457 3300

G Kingspan Kooltherm® K7 Pitched Roof Board is fixed

between joists below the Kingspan Thermaroof® TR31. G Measure the distance between the joists before cutting the

insulation boards as spacings can vary. G Push the cut insulation boards between the joists so

they are flush with the underside of the Kingspan Thermaroof® TR31. G In order to hold the boards in place, side–nail supporting

timber battens to the joists or partially drive galvanised nails into the side of the joists leaving the nail 40 mm proud. G In all cases ensure that insulation boards between joists

G Roof–light or ventilator kerbs etc. should always insulated

are fitted tightly. G Fill any gaps between the boards and the joists with

with the same thickness of Kingspan Thermaroof TR31 as the general roof area.

expanding urethane sealant.

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM

G Insulate any narrow gaps between a joist and the

upstand should be used around the perimeter of the roof on the internal façade of parapets.

perimeter wall with specially cut pieces of board. G Support these on blocks nailed to the underside of

G A minimum distance of 300 mm should be maintained

the joists.

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

NB If you intend to use between joist insulation with any thickness of Kingspan Thermaroof® TR31 other than 121 or 126 mm, please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

General Following Trades G The roof must be adequately protected when building works are being carried out on or over the roof surface. This is best achieved by close boarding. The completed roof must not be used for storage of heavy building components such as bricks or air conditioning equipment.

If, however, outside storage cannot be avoided, then the product should be stacked clear of the ground and covered with an opaque polythene sheet or weatherproof tarpaulin. Product that has been allowed to get wet should not be used.

Reflective Coatings G Bitumen based built–up waterproofing systems laid over Kingspan Thermaroof® TR31 should always incorporate a solar reflective layer such as chippings or a specialist coating.

Health and Safety G Kingspan Insulation products are chemically inert and safe to use.

Daily Working Practice

G Kingspan Thermaroof TR31 should not be considered ®

G A Safety Information Data Sheet for this product is

as temporary waterproofing. Sheets should be waterproofed as soon as possible after fixing. At the completion of each day’s work, or whenever work is interrupted for extended periods of time, a temporary weather protection must be made in order to prevent water penetration into the roof construction.

G Care should be taken to ensure that the sheets are kept

dry by laying only as much of the product as can be reasonably waterproofed in the working day.

The reflective facing used on this product can be slippery when wet. Therefore, it is recommended that any excess material should be contained to avoid a slip hazard. Warning – do not stand on or otherwise support your weight on this product unless it is fully supported by a load bearing surface.

Cutting

G Cutting should be carried out by using a fine toothed saw.

Do not attempt to snap the product sheets. G Ensure accurate trimming to achieve close butting joints

and continuity of insulation. Availability

G Kingspan Thermaroof TR31 is available through specialist ®

insulation distributors and selected roofing merchants throughout the UK and Ireland.

Product Details The Upper Facing

Standard Dimensions ®

Kingspan Thermaroof® TR31 is available in the following standard size:

The upper facing of Kingspan Thermaroof TR31 is an FSC certified, 6 mm nominal thickness, WBP exterior grade plywood, secondary bonded to the insulation core.

Nominal Dimension Length Width Nominal Plywood Thickness Insulant Thickness

The Core The core of Kingspan Thermaroof® TR31 is manufactured with Nilflam® technology, a high performance rigid thermoset polyisocyanurate (PIR) insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Availability (m) (m) (mm) (mm)

2.4 1.2 6 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Compressive Strength The compressive strength of Kingspan Thermaroof® TR31 typically exceeds 150 kPa at 10% compression, when tested to BS / I.S. EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

The Lower Facing The lower facing of Kingspan Thermaroof® TR31 is a low emissivity composite foil, autohesively bonded to the insulation core during manufacture. This reflective, low emissivity surface improves the thermal resistance of any unventilated cavity adjacent to the board.

Water Vapour Resistance / Resistivity Adjusted for the effect of unsealed board joints, the non–plywood component of, the product achieves a resistance far greater than 100 MN.s/g, when tested in accordance with BS EN 12086: 1997 / I.S. EN 12086: 1998 (Thermal insulating products for building applications Determination of water vapour transmission properties). When the joints between boards are sealed by the application of a continuous mastic sealant to the whole of the upper surface of the joists and cross noggins, a vapour resistance greater than 1000 MN.s/g can be achieved by the non–plywood component of the product. For the purposes of calculation of condensation risk, the resistivity of the plywood component of the product should be taken as 520 MN.s/g.m.

Standards and Approvals Kingspan Thermaroof® TR31 is manufactured to the highest standards in accordance with the requirements of both BS 4841–3 (Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end–use applications. Specification for laminated boards (roofboards) with auto–adhesively or separately bonded facings for use as roofboard thermal insulation under built–up bituminous roofing membranes) and BS 4841–4 (Rigid polyisocyanurate (PIR) and polyurethane (PUR) products for building end–use applications. Specification for laminated boards (roofboards) with auto–adhesively or separately bonded facings for use as roofboard thermal insulation under single−ply roofing membranes).

Durability If correctly installed, Kingspan Thermaroof® TR31 can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Kingspan Thermaroof® TR31 is also manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001 : 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

Resistance to Solvents, Fungi & Rodents

The insulation core is resistant to short–term contact with petrol and with most dilute acids, alkalis and mineral oils. However, it is recommended that any spills be cleaned off fully before the sheets are installed. Ensure that safe methods of cleaning are used, as recommended by the suppliers of the spilt liquid. The insulation core is not resistant to some solvent–based adhesive systems, particularly those containing methyl ethyl ketone. Adhesives containing such solvents should not be used in association with this product. Damaged sheets or sheets that have been in contact with harsh solvents or acids should not be used.

Thermal Conductivity Thermal conductivity (λ–value) of the plywood component of Kingspan Thermaroof® TR31 should be taken as 0.14 W/m.K. The thermal conductivity (λ–value) of the insulation core of Kingspan Thermaroof® TR31 is 0.022 W/m.K. Thermal Resistance Thermal resistance (R–value) varies with the thickness of each component. It is calculated by dividing the thickness of each component (expressed in metres) by its thermal conductivity, followed by adding the resulting figures together. The sum is rounded down to the nearest 0.05 (m2.K/W).

The insulation core and facings used in the manufacture of Kingspan Thermaroof® TR31 resist attack by mould and microbial growth, and do not provide any food value to vermin.

Fire Performance Kingspan Thermaroof® TR31, when subjected to the British Standard fire test specified in the table below, will achieve the result shown, when waterproofed with 3 layer built–up felt and a loading coat of 10 mm chippings. For specifications without the chippings please consult the manufacturer of the mineral surfaced cap sheet for their fire classification details. Test

Result

BS 476–3: 2004 (External fire exposure roof test)

FAA rating

Product Thickness* (mm)

Thermal Resistance (m2.K/W)

91 96 101 106 111 116 121 126

3.90 4.10 4.35 4.55 4.80 5.00 5.25 5.45

* Product thickness = insulant thickness + 6 mm plywood.

Further details on the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes. For thickness above 126 mm an additional layer of insulation between joists is required.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Literature & Samples

The Kingspan Insulation Technical Service Department can also give general application advice and advice on design detailing and fixing etc... Site surveys are also undertaken as appropriate.

Kingspan Insulation produces a comprehensive range of technical literature for specifiers, contractors, stockists and end users. The literature contains clear ‘user friendly’ advice on typical design; design considerations; thermal properties; sitework and product data.

The Kingspan Insulation British Technical Service Department operates under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U–value and Condensation Risk Calculations.

Available as a complete Design Manual or as individual product brochures, Kingspan Insulation technical literature is an essential specification tool. For copies please contact the Kingspan Insulation Marketing Department, or visit the Kingspan Insulation website, using the details below:

Please contact the Kingspan Insulation Technical Service Department on the numbers below: UK

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

– Tel: +44 (0) 1544 387 384 – Fax: +44 (0) 1544 387 484 – email: literature@kingspaninsulation.co.uk – www.kingspaninsulation.co.uk/literature

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie – www.kingspaninsulation.ie/literature

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

Kingspan Insulation Ltd is a member of: The National Insulation Association (NIA)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Insulation CI/Sfb

(27.9)

Ninth Issue

Rn7

March 2011

K11 Roofboard INSULATION FOR FLAT ROOFS WATERPROOFED WITH FULLY BONDED TORCH APPLIED MULTI–LAYER BITUMINOUS WATERPROOFING G

Premium performance rigid thermoset insulation – thermal conductivities as low as 0.021 W/m.K

Class 0 fire rated insulation core

Negligible smoke obscuration

G G

Compatible with torch applied waterproofing systems No requirement for a 3G ventilation layer Offers good resistance to foot traffic Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP and low GWP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

Concrete Deck

Dense Concrete Deck with Suspended Ceiling Damp proof course (DPC)

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Insulation angle fillet 2 layer fully bonded torch applied waterproofing membrane Kingspan Kooltherm® K11 Roofboard 12.5 mm plasterboard fixed to 25 x 50 mm timber battens at 600 mm centres

These examples are based on Kingspan Kooltherm® K11 Roofboard waterproofed using a fully bonded, torch applied waterproofing membrane, with the surface covered with mineral chippings. The insulation board is fully bonded to a sealed metal deck, or a vapour control layer, which has itself been fully bonded to the type of deck stated for each application. The ceiling, where applicable, is taken to be a 3 mm skim coated 12.5 mm plasterboard with a cavity between it and the underside of the deck.

Packer board* 50 mm screed to falls

DPC to drain internally or externally as specified

150 mm concrete deck Vapour control layer

Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Figure 1

Product thicknesses† for Kingspan Kooltherm® K11 Roofboard are only available up to 90 mm. To achieve better U−values than 90 mm Kingspan Kooltherm® K11 Roofboard can provide, a packer board is used. The packer board is taken to be Kingspan Thermaroof ® TR27 LPC/FM. Please refer to the relevant Kingspan Insulation literature for details of this product. † Product thickness = insulant thickness + 20 mm perlite. NB When calculating U–values to BS EN ISO 6946: 2007, the type of mechanical fixing used may change the thickness of insulation required. These calculations assume telescopic tube fasteners with a thermal conductivity of 1.00 W/m.K or less, the effect of which is insignificant. NB For the purposes of these calculations the standard of workmanship has been assumed good and therefore the correction factor for air gaps has been ignored. NB The figures quoted are for guidance only. A detailed U–value calculation together with condensation risk analysis should be completed for each individual project. NB If your construction is different from those specified and / or to gain a comprehensive U−value calculation along with a condensation risk analysis for your project please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

Packer Board* Thickness (mm)

Product Thickness** of Kingspan Kooltherm® K11 Roofboard (mm)

0 0 50 60 75 40 50 60 70 85 95 120 130

80 90 60 60 60 90 90 90 90 90 90 90 90

U–value (W/m2.K)

0.23 0.22 0.20 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.10

* The packer board is taken to be Kingspan Thermaroof TR27 LPC/FM. Please refer to the relevant Kingspan Insulation literature for details of this product. ** Product thickness = insulant thickness + 20 mm perlite.

U–value Table Key Where an is shown, the U–value is higher than the worst of the maximum new build area weighted average U−values allowed by the 2010 Editions of Approved Documents L to the Building Regulations (England & Wales) and the 2010 Editions of Technical Handbooks Section 6 (Scotland).

Timber Deck

Metal Deck

Timber Deck with Suspended Ceiling

Metal Deck with No Ceiling

Damp proof course (DPC)

Insulation angle fillet Insulation angle fillet 2 layer fully bonded torch applied waterproofing membrane 2 layer fully bonded torch applied waterproofing membrane

Kingspan Kooltherm® K11 Roofboard

50 x 150 mm timber joists at 600 mm centres

Packer board*

Packer board* 18 mm plywood deck

Vapour control layer

Vapour control layer (not required if metal deck is sealed)

DPC to drain internally or externally as specified Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Metal deck

Figure 2

DPC to drain internally or externally as specified Insulation upstand min. 300 mm from bottom surface of horizontal insulation layer

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Figure 3

Packer Board* Thickness (mm)

Product Thickness** of Kingspan Kooltherm® K11 Roofboard (mm)

0 0 45 60 70 40 45 55 70 80 95 110 125

80 90 60 60 60 90 90 90 90 90 90 90 90

U–value (W/m2.K)

0.23 0.22 0.20 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.10

Packer Board* Thickness (mm)

Product Thickness** of Kingspan Kooltherm® K11 Roofboard (mm)

0 60 70 80 50 60 70 80 90 110 120 135

90 60 60 90 90 90 90 90 90 90 90 90

U–value (W/m2.K)

0.22 0.20 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.10

* The packer board is taken to be Kingspan Thermaroof TR27 LPC/FM. Please refer to the relevant Kingspan Insulation literature for details of this product.

** Product thickness = insulant thickness + 20 mm perlite.

Design Considerations Linear Thermal Bridging

NBS Specifications

Reasonable provision must be made to limit the effects of cold bridging. The design should ensure that roof–light or ventilator kerbs etc. are always insulated with the same thickness of Kingspan Kooltherm® K11 Roofboard as the general roof area. A 25 mm thick Kingspan Thermaroof® TR27 LPC/FM upstand should be used around the perimeter of the roof on the internal façade of parapets. A minimum distance of 300 mm should be maintained between the top of the insulation upstand and the bottom of the horizontal roof insulation. Wall insulation should also be carried up into parapets as high as the flat roof insulation upstand. Please contact the Kingspan Insulation Technical Service Department (see rear cover) for further advice.

Details also available in NBS Plus. NBS users should refer to clause(s): J41 420, J41 430 (Standard and Intermediate) J41 10 (Minor Works)

Wind Loading Wind loadings should be assessed in accordance with BS 6399–2: 1997 (Loading for buildings. Code of practice for wind loads) or BS EN 1991–1–4: 2005 (National Annex to Eurocode 1 Actions on Structures. General Actions. Wind Actions) taking into account: G length / width / height of the building; G orientation of the building; G wind speed;

Sustainability & Responsibility

G aspect (e.g. on a hill side); and

G topographical value of the surrounding area.

Falls The fall on a flat roof, constructed using Kingspan Kooltherm® K11 Roofboard, is normally provided by the supporting structure being directed towards the rainwater outlets. The fall should be smooth and steep enough to prevent the formation of rainwater pools. In order to ensure adequate drainage, BS 6229: 2003 (Flat roofs with continuously supported coverings. Code of practice) recommends uniform gradients of not less than 1 in 80. However, because of building settlement, it is advisable to design in even greater falls. These can be provided by a Kingspan Thermataper® LPC/FM tapered roofing system. Further details of the Kingspan Thermataper® LPC/FM range and its supporting design service are available from the Kingspan Insulation Tapered Roofing Department (see rear cover).

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

Specification Clause Kingspan Kooltherm® K11 Roofboard should be described in specifications as:– The roof insulation shall be Kingspan Kooltherm® K11 Roofboard ____mm thick: comprising a premium performance rigid thermoset insulation core faced with 20 mm thick bitumen coated perlite on its upper surface and a glass tissue based facing on its lower surface. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); under a management system certified to NEN EN ISO 9001: 2008; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them.

Roof Waterproofing

Roof Loading / Traffic

Kingspan Kooltherm® K11 Roofboard is designed for use with 2 layer fully bonded torch applied felts. Fully bonded built–up felt waterproofing should be laid, where applicable, in accordance with BS 8217: 2005 (Reinforced bitumen membranes for roofing. Code of practice).

Kingspan Kooltherm® K11 Roofboard is suitable for use on access roof decks subject to limited foot traffic. Where inappropriate foot traffic is liable to occur, it is recommended that the roof surface is protected by promenade tiles.

NB Kingspan Kooltherm® K11 Roofboard is unsuitable for use with partially bonded torch applied waterproofing systems.

For further advice on the acceptability of specific foot traffic regimes, please contact the Kingspan Insulation Technical Service Department (see rear cover).

Water Vapour Control Kingspan Kooltherm® K11 Roofboard should be installed over a separate vapour control layer, in new build roofs, unless it is being used in conjunction with a sealed metal deck. Regardless of the deck type it is recommended that a condensation risk analysis is carried out for every project. For refurbishment projects, involving the addition of insulation to existing insulated flat roofs, it is imperative that a U–value calculation and condensation risk analysis is carried out for every project, in order to ensure that the correct thickness of insulation is installed to achieve the required thermal performance, whilst avoiding interstitial condensation. In refurbishment projects, where Kingspan Kooltherm® K11 Roofboard is to be installed over an existing bituminous waterproofing membrane, the membrane can be used as a vapour control layer, as long as it is in a good water tight condition. Where this is not the case, a separate vapour control layer should be installed. A minimum vapour control layer should consist of a coated roofing felt complying with Type 3B to BS 747: 2000 (Reinforced bitumen sheets for roofing. Specification) or S1P1 to BS 8747: 2007 (Reinforced bitumen membranes (RBMs) for roofing. Guide to selection and specification), or any appropriate metal–cored vapour control layer. Where the separate vapour control layer is to be bonded, allowance should be made for adequate bonding of the vapour control layer to the substrate, so as to provide a suitable surface upon which to lay the insulation boards and sufficient resistance to wind up–lift (see ‘Wind Loading’).

Sitework Installing over Metal Decks

Installing over Concrete Decks

G Metal decks should be clean, dry, without large

G Concrete decks should be clean, dry, without large

projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.

G If using a sealed metal deck there is no requirement for a

G In order to ensure an adequate bond between the vapour

separate vapour control layer.

control layer and the concrete deck, the concrete or screeded surface should be suitably primed, in accordance with the primer manufacturer’s instructions, prior to the application of the hot bitumen, or suitable alternative proprietary adhesive system, used to bond the vapour control layer to the deck.

G If the metal deck is not sealed, in order to ensure an

adequate bond between it and the vapour control layer, the metal deck should be suitably primed, in accordance with the primer manufacturer’s instructions, prior to the application of the hot bitumen, or suitable alternative proprietary adhesive system, used to bond the vapour control layer to the deck.

G Where one run of the specified vapour control layer laps

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G Where one run of the specified vapour control layer laps

G Turn up the vapour control layer at the edge of the roof

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

insulation, lap with the roof waterproofing and seal.

G Turn up the vapour control layer at the edge of the roof

G Sheets of Kingspan Kooltherm® K11 Roofboard should

to a height appropriate to the specified waterproofing membrane.

be bonded down by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer, or with the use of a suitable alternative proprietary adhesive system.

G Sheets of Kingspan Kooltherm® K11 Roofboard should be

bonded down by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer / sealed metal deck, or with the use of a suitable alternative proprietary adhesive system.

G Insulation sheets should always be laid break–bonded,

either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments.

G Insulation sheets should always be laid break–bonded,

G Roof–light or ventilator kerbs etc. should always insulated

either with their long edges at right angles to the trough openings, or diagonally across the corrugation line, and with joints lightly butted. There should be no gaps at abutments.

with the same thickness of Kingspan Kooltherm® K11 Roofboard as the general roof area. G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

G Roof–light or ventilator kerbs etc. should always insulated

upstand should be used around the perimeter of the roof on the internal façade of parapets.

with the same thickness of Kingspan Kooltherm K11 Roofboard as the general roof area. ®

G A minimum distance of 300 mm should be maintained

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

upstand should be used around the perimeter of the roof on the internal façade of parapets.

G The waterproofing membrane is installed in accordance

G A minimum distance of 300 mm should be maintained

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation sheets.

between the top of the insulation upstand and the bottom of the horizontal roof insulation. G The waterproofing membrane is installed in accordance

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation sheets.

Installing over Plywood Decks

Installing over Existing Flat Roofs

G Plywood decks should be clean, dry, without large

G The existing waterproofing membrane surface should be

projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.

clean, dry, without large projections, steps or gaps, and should be graded to allow correct falls to all rainwater outlets.

G If the vapour control layer is to be bonded, in order to

G Where the existing waterproofing membrane is not fit for

ensure an adequate bond between it and the plywood deck, the plywood surface should be suitably primed, in accordance with the primer manufacturer’s instructions, prior to the application of the hot bitumen, or suitable alternative proprietary adhesive system, used to bond the vapour control layer to the deck.

purpose as a vapour control layer, a separate vapour control layer should be bonded to it with hot bitumen, or suitable alternative proprietary adhesive system. G Where one run of the specified vapour control layer laps

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

G If the vapour control layer is to be nailed to the deck the nail

G Turn up the vapour control layer at the edge of the roof to

heads will become sealed with the subsequent bonding of the insulation boards to the vapour control layer.

a height appropriate to the specified new waterproofing membrane.

G Where one run of the specified vapour control layer laps

G Sheets of Kingspan Kooltherm® K11 Roofboard should

another, there should be minimum 150 mm side and end overlaps, which should be adequately sealed.

be bonded down by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer, or with the use of a suitable alternative proprietary adhesive system.

G Turn up the vapour control layer at the edge of the roof

to a height appropriate to the specified waterproofing membrane. G Sheets of Kingspan Kooltherm® K11 Roofboard should

G Insulation sheets should always be laid break–bonded,

be bonded down by laying into hot bitumen (max. temperature 240°C) mopped or poured over the vapour control layer, or with the use of a suitable alternative proprietary adhesive system.

either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments. G Roof–light or ventilator kerbs etc. should always insulated

G Insulation sheets should always be laid break–bonded,

with the same thickness of Kingspan Kooltherm® K11 Roofboard as the general roof area.

either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments.

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

upstand should be used around the perimeter of the roof on the internal façade of parapets.

G Joints between insulation boards should not coincide with

G A minimum distance of 300 mm should be maintained

those between the plywood sheets. G Roof–light or ventilator kerbs etc. should always insulated

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

with the same thickness of Kingspan Kooltherm® K11 Roofboard as the general roof area.

G The waterproofing membrane is installed in accordance

G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM ®

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation sheets

upstand should be used around the perimeter of the roof on the internal façade of parapets. G A minimum distance of 300 mm should be maintained

between the top of the insulation upstand and the bottom of the horizontal roof insulation. G The waterproofing membrane is installed in accordance

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands, as soon as possible after laying the insulation sheets.

Installing in Two Layers

General

G In situations where two layers of insulation are required, the

packer board and Kingspan Kooltherm K11 Roofboard should be installed in the same manner, as detailed in the preceding sections. ®

G In all cases, the layers should be horizontally offset relative

to each other so that, as far as possible, the board joints in the two adjacent layers do not coincide with each other (see Figure 4).

Reflective Coatings G Bitumen based built–up waterproofing systems laid over Kingspan Kooltherm® K11 Roofboard should always incorporate a solar reflective layer such as chippings or a specialist coating.

First insulation layer

Daily Working Practice G At the completion of each day’s work, or whenever work is interrupted for extended periods of time, a night joint must be made in order to prevent water penetration into the roof construction. Cutting G Cutting should be carried out by using a fine toothed saw. Do not attempt to snap the product sheets. G Ensure accurate trimming to achieve close butting joints

Second insulation layer, if required, offset relative to first.

and continuity of insulation.

Figure 4 Offsetting of Multiple Insulation Layers

Availability G Kingspan Kooltherm® K11 Roofboard is available through specialist insulation distributors and selected roofing merchants throughout the UK. Packing and Storage G The polyethylene packaging of Kingspan Insulation products, which is recyclable, should not be considered adequate for outdoor protection. G Ideally, the product should be stored inside a building.

If, however, outdoor storage cannot be avoided then the product should be stacked clear of the ground and covered with a polythene sheet or weatherproof tarpaulin. Product that has been allowed to get wet should not be used. Health and Safety G Kingspan Insulation products are chemically inert and safe to use. G A Safety Information Data Sheet for this product is

available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety. Warning – do not stand on or otherwise support your weight on this board unless it is fully supported by a load bearing surface.

Product Details The Upper Facing

Water Vapour Resistance / Resistivity

The upper facing of Kingspan Kooltherm® K11 Roofboard is 20 mm thick bitumen coated perlite board, manufactured from expanded, milled volcanic perlite rock particles, formed into a board, and treated during manufacture with a bitumen emulsion, and secondary bonded to the insulation core.

The non–perlite component of the product typically achieves a resistivity greater than 300 MN.s/g.m, when tested in accordance with EN 12086: 1997 (Thermal insulating products for building applications Determination of water vapour transmission properties). For the purposes of calculation of condensation risk, the resistivity of the perlite component of the product should be taken as 27 MN.s/g.m. Kingspan Kooltherm® K11 Roofboard should always be installed over a vapour control layer or sealed metal deck (see ‘Water Vapour Control’ on page 5).

The Core The core of Kingspan Kooltherm® K11 Roofboard is a premium performance rigid thermoset modified resin insulant, manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Durability If correctly installed, Kingspan Kooltherm® K11 Roofboard can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

The Lower Facing The lower facing of Kingspan Kooltherm® K11 Roofboard is a glass tissue based facing, is autohesively bonded to the insulation core during manufacture.

Resistance to Solvents, Fungi & Rodents The insulation core is resistant to short–term contact with petrol and with most dilute acids, alkalis and mineral oils. However, it is recommended that any spills be cleaned off fully before the sheets are installed. Ensure that safe methods of cleaning are used, as recommended by the suppliers of the spilt liquid. The insulation core is not resistant to some solvent–based adhesive systems, particularly those containing methyl ethyl ketone. Adhesives containing such solvents should not be used in association with this product.

Standard and Approvals Kingspan Kooltherm® K11 Roofboard is manufactured to the highest standards under a management system certified to NEN EN ISO 9001: 2008 (Quality management systems. Requirements).

Standard Dimensions Kingspan Kooltherm® K11 Roofboard is available in the following standard size: Nominal Dimension Length Width Perlite Thickness Insulant Thickness

Damaged sheets or sheets that have been in contact with harsh solvents or acids should not be used.

Availability (m) (m) (mm) (mm)

The insulation core and facings used in the manufacture of Kingspan Kooltherm® K11 Roofboard resist attack by mould and microbial growth, and do not provide any food value to vermin.

1.2 1.0 20 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Compressive Strength Typically exceeds 150 kPa at 10% compression, when tested to EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

Fire Performance

Thermal Properties The λ–values and R–values detailed below are quoted in accordance with EN 13166: 2008 (Thermal insulation products for buildings – Factory made products of phenolic foam (PF) – Specification).

Kingspan Kooltherm® K11 Roofboard is Class 1, as defined by by BS 476–7: 1997 (Fire tests on building materials and structures. Method of test to determine the classification of the surface spread of flame of products). The rigid thermoset insulation core of Kingspan Kooltherm® K11 Roofboard is Class 0, as defined by the Building Regulations.

Thermal Conductivity The thermal conductivity (λ–value) of the perlite component of Kingspan Kooltherm® K11 Roofboard is 0.050 W/m.K

The rigid thermoset insulation core of Kingspan Kooltherm® K11 Roofboard, when subjected to the British Standard fire test, specified in the table below, has achieved the result shown. Test

Result

BS 5111–1: 1974 (Smoke Obscuration)

< 5% (Negligible smoke obscuration)

The thermal conductivity (λ–value) of the insulation core of Kingspan Kooltherm® K11 Roofboard is: 0.023 W/m.K (insulant thickness 25–44 mm); and 0.021 W/m.K (insulant thickness ≥ 45 mm). Thermal Resistance Thermal resistance (R–value) varies with the thickness of each component. It is calculated by dividing the thickness of each component (expressed in metres) by its thermal conductivity, followed by adding the resulting figures together. The sum is rounded down to the nearest 0.05 (m2.K/W).

Kingspan Kooltherm® K11 Roofboard, when subjected to the British Standard fire test, specified in the table below, will achieve the result shown, when waterproofed with a 2 layer, torch applied felt and a loading coat of 10 mm mineral chippings. For specifications without the chippings please consult the manufacturer of the mineral surfaced cap sheet for their fire classification details. Test

Result

BS 476–3: 2004 (External fire exposure roof test)

FAA rating

Further details on the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

Product Thickness* (mm)

Thermal Resistance (m2.K/W)

60 70 75 80 90

2.10 2.75 3.00 3.25 3.70

* Product thickness = insulant thickness + 20 mm perlite board. NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes. For thickness above 90 mm a packer board is required.

Kingspan Insulation Company Details

Insulation Product Benefits

specific U–value.

Kingspan Insulation Ltd is a market leading manufacturer of premium and high performance rigid insulation products and insulated systems for building fabric and building services applications.

G Rigid thermoset insulation core is Class 0, as defined

by the Building Regulations in England, Wales & Ireland, and Low Risk, as defined by the Building Standards in Scotland. G Rigid thermoset insulation core achieves the best possible

Products & Applications

rating of < 5% smoke obscuration when tested to BS 5111: Part 1: 1974.

G Manufactured with a blowing agent that has zero Ozone

Depletion Potential (ODP) and low Global Warming Potential (GWP).

Insulation for: G Pitched Roofs

Kingspan Therma™ Range Products G With a thermal conductivity of 0.022–0.027 W/m.K these are amongst the more thermally efficient insulation products commonly used.

G Flat Roofs G Green Roofs G Cavity Walls

G Each product achieves the required fire performance for its

G Solid Walls

intended application.

G Timber and Steel Framing

G Manufactured with a blowing agent that has zero Ozone

G Insulated Cladding Systems

Depletion Potential (ODP) and low Global Warming Potential (GWP).

G Insulated Render Systems G Floors

G Soffits G Ductwork

Further Solutions: G Insulated Dry–Lining

G Each product achieves the required fire performance for its

G Tapered Roofing Systems

intended application.

G Cavity Closers

G Manufactured with a blowing agent that has zero Ozone

G Kingspan KoolDuct® Pre–Insulated Ducting

Depletion Potential (ODP).

G Kingspan nilvent Breathable Membranes ®

G Kingspan TEK® Building System

G Unaffected by air infiltration – a problem that can be

experienced with mineral fibre and which can reduce thermal performance. G Safe and easy to install – non–fibrous. G If installed correctly, can provide reliable long term thermal

performance over the lifetime of the building.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

Tel: +44 (0) 1544 388 601 Fax: +44 (0) 1544 388 888 email: customerservice@kingspaninsulation.co.uk

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Please contact the Kingspan Insulation Technical Service Department on the numbers below: Tel: +44 (0) 1544 387 382 Fax: +44 (0) 1544 387 482 email: technical@kingspaninsulation.co.uk

General Enquiries

Tapered Roofing

For all other enquiries contact Kingspan Insulation on the numbers below:

For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below:

Tel: +44 (0) 1544 388 601 Fax: +44 (0) 1544 388 888 email: info@kingspaninsulation.co.uk

Tel: +44 (0) 1544 387 383 Fax: +44 (0) 1544 387 483 email: tapered@kingspaninsulation.co.uk

Kingspan Insulation Ltd is a member of: The National Insulation Association (NIA)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK

www.kingspaninsulation.co.uk

Kingspan, KoolDuct, Kooltherm, nilvent, TEK, Thermaroof, Thermataper, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK and other countries. All rights reserved. ™ Therma is a Trademark of the Kingspan Group plc.

Styrozone is a Registered Trademark.

Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456.

Insulation CI/Sfb

(27.9)

Seventh Issue

Rn7

March 2011

Inverted Roofs INSULATION FOR PROTECTED MEMBRANE FLAT ROOFS AND GREEN ROOFS

High performance rigid extruded polystyrene insulation – thermal conductivities as low as 0.029 W/m.K Protects waterproofing membrane

Minimal water absorption

High compressive strength

Withstands freeze / thaw cycling

G G

Compatible with green roof systems Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

Concrete Deck with Paving Slab Ballast

The U−values in the tables that follow have been calculated, under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U–value and Condensation Risk Calculations, using the method detailed in BS / I.S. EN ISO 6946: 2007 (Building components and building elements. Thermal resistance and thermal transmittance. Calculation method) and using the conventions set out in BR443 (Conventions for U−value calculations). The method detailed in part D4.2 of BS / I.S. EN ISO 6946: 2007 has been used to take account of the effect of the high performance, non−woven polyethylene membrane over the insulation, and an (fx) factor ≤ 0.002 has been assumed. They are valid for the constructions shown in the details immediately above each table.

Dense Concrete Deck with Suspended Ceiling

They assume a nominal selection of post−codes, selected to represent the influence of geographical variations in rainfall on thermal performance.

Figure 1

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Damp proof course (DPC) Cover flashing Paving slabs on supports Non–woven polyester fleece layer (if required)

DPC to drain internally or externally as specified

High performance non−woven polyethylene membrane Kingspan Purlcrete®chevron upstand min. 12.5 mm 300 mm from 2 layer mastic asphalt plasterboard fixed surface bottom waterproofing on an to 25 x 50 mm of horizontal underlay of Type 4A 50 mm screed 150 mm timber battens at insulation layer sheathing felt to concrete deck 600 mm centres to falls BS 747: 2000 Kingspan Styrozone®

U–values (W/m2.K) with Different Grades of Kingspan Styrozone® for a Nominal Selection of Post−Codes Insulant Post−Code Thickness London Birm’ham Glasgow Cardiff Ireland (mm) NW1 B1 G1 CF10

The ceiling, where applicable, is taken to be a 3 mm skim coated 12.5 mm plasterboard with a cavity between it and the underside of the deck.

Kingspan Styrozone® N 300 R

NB For the purposes of these calculations the standard of workmanship has been assumed good and therefore the correction factor for air gaps has been ignored.

120 140 160 180 100 + 100 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 140* 160 + 160 180 + 160* 180 + 180 140 + 120 + 120* 140 + 140 + 140

NB The figures quoted are for guidance only. A detailed U–value calculation together with condensation risk analysis should be completed for each individual project. NB If your construction is different from those specified and / or to gain a comprehensive U−value calculation along with a condensation risk analysis for your project please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

0.24 0.21 0.20 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.11 0.10 0.09 0.09

0.25 0.22 0.21 0.19 0.17 0.16 0.15 0.14 0.13 0.13 0.12 0.12 0.11 0.10

0.24 0.21 0.20 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.11 0.10 0.09 0.09

Kingspan Styrozone® H 350 R 80 100 120 140 160 100 + 80* 100 + 100 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 140* 160 + 160 120 + 120 + 100*

* Excluding Change of Use and Material Alterations.

0.25 0.21 0.20 0.17 0.15 0.13 0.12 0.11 0.11 0.10 0.10 0.09 0.08

0.23 0.21 0.19 0.16 0.15 0.14 0.13 0.12 0.12 0.11 0.11 0.10

0.25 0.21 0.20 0.17 0.15 0.13 0.12 0.11 0.11 0.10 0.10 0.09 0.08

* Where there are multiple layers of insulation of different thicknesses the thickest insulation board is installed first.

Concrete Deck with Gravel Blast Dense Concrete Deck with Suspended Ceiling

Dense Concrete Deck with no Ceiling

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Damp proof course (DPC) Cover flashing

Kingspan Kooltherm® K8 Cavity Board taken up as high as the flat roof insulation upstand

Damp proof course (DPC) Cover flashing

Paving slabs on supports

Non–woven polyester fleece layer (if required)

DPC to drain internally or externally as specified

High performance non−woven polyethylene membrane

Kingspan Purlcrete®chevron upstand min. 12.5 mm 300 mm from 2 layer mastic asphalt plasterboard fixed surface bottom waterproofing on an to 25 x 50 mm of horizontal underlay of Type 4A 50 mm screed 150 mm timber battens at insulation layer sheathing felt to concrete deck 600 mm centres to falls BS 747: 2000

Kingspan Styrozone®

DPC to drain internally or externally as specified

Kingspan Purlcrete®chevron upstand min. 300 mm from bottom surface of horizontal insulation layer

2 layer mastic asphalt waterproofing on an underlay of Type 4A 50 mm screed 150 mm sheathing felt to concrete deck to falls BS 747: 2000

Figure 2

Figure 3

U–values (W/m2.K) with Different Grades of Kingspan Styrozone® for a Nominal Selection of Post−Codes Insulant Post−Code Thickness London Birm’ham Glasgow Cardiff Ireland (mm) NW1 B1 G1 CF10

Kingspan Styrozone® N 300 R

120 140 160 180 100 + 100 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 140* 160 + 160 180 + 160* 180 + 180 140 + 120 + 120* 140 + 140 + 140

0.24 0.21 0.20 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.11 0.10 0.09 0.09

0.25 0.22 0.21 0.19 0.17 0.16 0.15 0.14 0.13 0.13 0.12 0.12 0.11 0.10

0.24 0.21 0.20 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.11 0.10 0.09 0.09

Kingspan Styrozone® H 350 R 80 100 120 140 160 100 + 80* 100 + 100 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 140* 160 + 160 120 + 120 + 100*

0.25 0.21 0.20 0.17 0.15 0.13 0.12 0.11 0.11 0.10 0.10 0.09 0.08

0.23 0.21 0.19 0.16 0.15 0.14 0.13 0.12 0.12 0.11 0.11 0.10

120 140 160 180 100 + 100 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 140* 160 + 160 180 + 160* 180 + 180 140 + 120 + 120* 140 + 140 + 120* 140 + 140 + 140

0.25 0.22 0.21 0.18 0.16 0.15 0.14 0.13 0.12 0.11 0.11 0.11 0.10 0.09 0.09

Kingspan Styrozone® H 350 R

0.25 0.21 0.20 0.17 0.15 0.13 0.12 0.11 0.11 0.10 0.10 0.09 0.08

100 120 140 160 100 + 80* 100 + 100 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 120* 160 + 160 120 + 120 + 100*

0.24 0.22 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.13 0.12 0.11 0.11 0.10

0.25 0.22 0.21 0.18 0.16 0.15 0.15 0.14 0.13 0.12 0.12 0.12 0.11 0.10 0.10

0.22 0.21 0.18 0.15 0.14 0.13 0.12 0.11 0.11 0.10 0.09 0.08

0.24 0.22 0.20 0.17 0.15 0.14 0.13 0.13 0.12 0.12 0.11 0.10

0.22 0.21 0.18 0.15 0.15 0.14 0.13 0.12 0.12 0.11 0.10 0.09

* Where there are multiple layers of insulation of different thicknesses the thickest insulation board is installed first.

Green Roofs Semi−intensive Green Roof Covering with No Ceiling

Intensive Green Roof Covering with No Ceiling Intensive green roof covering

Semi−intensive green roof covering

Substrate to depth required

Filtration layer

Filtration layer Drainage layer

Drainage layer

High performance non−woven polyethylene membrane

Kingspan Styrozone®

Root barrier / protection layer(s)

2 layer mastic asphalt waterproofing on an underlay of Type 4A sheathing felt to BS 747: 2000 50 mm screed to falls

2 layer mastic asphalt waterproofing on an underlay of Type 4A sheathing felt to BS 747: 2000

150 mm concrete deck

50 mm screed to falls

Figure 4

Figure 5

U–values (W/m2.K) with Different Grades of Kingspan Styrozone® for a Nominal Selection of Post−Codes Insulant Post−Code Thickness London Birm’ham Glasgow Cardiff Ireland (mm) NW1 B1 G1 CF10

Kingspan Styrozone® N 300 R

120 140 160 180 100 + 100 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 140* 160 + 160 180 + 160* 180 + 180 140 + 120 + 120* 140 + 140 + 120* 140 + 140 + 140

0.25 0.22 0.21 0.18 0.16 0.15 0.14 0.13 0.12 0.11 0.11 0.11 0.10 0.09 0.09

Kingspan Styrozone® H 350 R 100 120 140 160 100 + 80* 100 + 100 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 120* 160 + 160 120 + 120 + 100*

0.24 0.22 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.13 0.12 0.11 0.11 0.10

120 140 160 180 100 + 100 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 140* 160 + 160 180 + 160* 180 + 180 140 + 120 + 120* 140 + 140 + 120* 140 + 140 + 140

0.25 0.22 0.21 0.18 0.16 0.15 0.15 0.14 0.13 0.12 0.12 0.12 0.11 0.10 0.10

0.22 0.21 0.18 0.15 0.14 0.13 0.12 0.11 0.11 0.10 0.09 0.08

0.24 0.22 0.20 0.17 0.15 0.14 0.13 0.13 0.12 0.12 0.11 0.10

0.22 0.21 0.18 0.15 0.15 0.14 0.13 0.12 0.12 0.11 0.10 0.09

0.25 0.22 0.21 0.18 0.16 0.15 0.14 0.13 0.12 0.11 0.11 0.11 0.10 0.09 0.09

Kingspan Styrozone® H 350 R 100 120 140 160 100 + 80* 100 + 100 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 120* 160 + 160 120 + 120 + 100*

* Where there are multiple layers of insulation of different thicknesses the thickest insulation board is installed first.

0.24 0.22 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.13 0.12 0.11 0.11 0.10

0.25 0.22 0.21 0.18 0.16 0.15 0.15 0.14 0.13 0.12 0.12 0.12 0.11 0.10 0.10

0.22 0.21 0.18 0.15 0.14 0.13 0.12 0.11 0.11 0.10 0.09 0.08

0.24 0.22 0.20 0.17 0.15 0.14 0.13 0.13 0.12 0.12 0.11 0.10

0.22 0.21 0.18 0.15 0.15 0.14 0.13 0.12 0.12 0.11 0.10 0.09

* Where there are multiple layers of insulation of different thicknesses the thickest insulation board is installed first.

Design Considerations Linear Thermal Bridging Reasonable provision must be made to limit the effects of cold bridging. The design should ensure that roof–light or ventilator kerbs, gutters etc. are always insulated with the same thickness of insulation (Kingspan Purlcrete®chevron with a seprate backing layer of Kingspan Styrozone®) as the general roof area. A Kingspan Purlcrete®chevron upstand should be used around the perimeter of the roof on the internal façade of parapets. A minimum distance of 300 mm should be maintained between the top of the insulation upstand and the bottom of the horizontal roof insulation. Wall insulation should also be carried up into parapets as high as the flat roof insulation upstand. Please contact the Kingspan Insulation Technical Service Department (see rear cover) for further advice.

Protected membrane roofing systems place the insulation above the waterproofing, and offer several advantages over traditional warm flat roofs. G The waterproofing system can be expected to have a life

in excess of that obtained in an exposed situation, as it is protected from mechanical damage, UV degradation from solar radiation and temperature extremes (both daily and seasonal). G The roof is safe from condensation risk. G The roof achieves an EXT.FAA fire rating with

gravel ballast and paving slab protective finishes. G Insulation can be lifted to allow inspection of the

waterproofing system. G Additional insulation can be added at a later date.

Sustainability & Responsibility

G The installation of the insulation is not weather dependant.

Kingspan Insulation has a long−term commitment to sustainability and responsibility: as a manufacturer and supplier of insulation products; as an employer; as a substantial landholder; and as a key member of its neighbouring communities.

Rigid extruded polystyrene insulation has minimal water absorption, due to its closed cell structure, and is the only material suitable and approved for this application, where it will be subject to wetting / drying and freeze / thaw cycles.

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

Product Selection Consideration must be given to which Kingspan Styrozone® product is most appropriate for the required application. A table of the key distinguishing features is shown below.

Specification Clause Kingspan Styrozone® should be described in specifications as:– The roof insulation shall be Kingspan Styrozone® (insert grade) _____ mm thick: comprising high performance rigid extruded polystyrene insulation. The product shall be manufactured, with a blowing agent that has zero Ozone Depletion Potential (ODP), under a management control system certified to EN ISO 9001: 2000, and shall be installed in accordance with the instructions issued by Kingspan Insulation Limited.

Product

Thermal Conductivity (W/m.K)

Styrozone® H 350 R Styrozone® N 300 R

0.029 – 0.031 0.038 – 0.040

Compressive Strength at 10% Density Compression (kg/m3) (kPa) 30 30

300 300

Design Loads & Roof Structure The suitability of the structure under consideration to accept design loads, including the increased dead load from ballast, snow and roof traffic, should be verified in accordance with BS 6399–3: 1988 (Loading for buildings. Code of practice for imposed roof loads).

NBS Specifications Details also available in NBS PLUS. NBS users should refer to clause(s): J21 440, J31 340, J41 440 (Standard and Intermediate)

The additional load from ballast can be considerable.

Protected Membrane Roofs This literature describes the use of Kingspan Styrozone® as a component of protected membrane roofing systems using either a gravel or paving slab finish, and as a component of green roof systems.

Ballast Layer

Dead Load

50 mm thick paving slabs Gravel (16–32 mm diameter) Soil (intensive green roof) Soil (semi–intensive green roof) Soil (extensive green roof)

125 kg/m2 16 kg/m2 per 10 mm depth 180 – 500 kg/m2 120 – 200 kg/m2 60 – 150 kg/m2

The ballast layer resists wind uplift, prevents floatation of the boards after heavy rain, prevents UV degradation of the boards and gives the roof the required external fire performance.

Wind Loads

Design Details

The resistance of the waterproofing system, insulation and ballast to wind uplift should be assessed in accordance with BS 6399–2: 1997 (Loading for buildings. Code of practice for wind loads) or BS / I.S. EN 1991−1−4: 2005 (National Annex to Eurocode 1 Actions on structures. General Actions. Wind Actions). BRE Digest 295 gives specific design guidelines for loose–laid insulation systems.

Paving Slab Ballasted Protected Membrane Roof Details Paving slabs on cruciform supports

High performance non−woven polyethylene membrane

Mineral surfaced bituminous felt layer

Gravel

Kingspan Styrozone® 150 mm min.

For constructions located in sheltered exposure zones, or on buildings of up to 10 storeys, the self weight of a minimum 50 mm gravel ballast layer (minimum 80 kg/m2), installed over a non–woven polyethylene membrane, is generally sufficient to ensure that both the insulation boards and waterproofing system remain stable under the full design load.

Mastic asphalt waterproofing

For constructions located in moderate exposure zones, or on buildings of up to 10 to 15 storeys, this gravel ballast specification is generally sufficient, but the perimeter should be loaded with 50 mm thick paving slabs.

Non–woven polyester fleece layer (if required)

Screed to falls

Concrete deck

Figure 6 – Eave / Kerb Detail Paving slabs on cruciform supports

High performance non−woven polyethylene membrane

For severe exposure zones or tall buildings over 15 storeys, specialist advice should be sought. BRE Digest 311 (Wind scour of gravel ballast on roofs) should be used when a calculation is required for a specific building project.

Proprietary mechanical fixing

Aluminium edge trim

Kingspan Styrozone®

Flotation The ballast specifications detailed in the ‘Wind Loads’ section (above) will be sufficient to prevent flotation of the insulation boards after heavy rain. Mastic asphalt waterproofing

Falls

Non–woven polyester fleece layer (if required)

Screed to falls

Concrete deck

Figure 7 – Eave / Gutter Detail

The fall on a flat roof, constructed using Kingspan Styrozone®, is normally provided by the supporting structure being directed towards the rainwater outlets. The fall should be smooth and steep enough to prevent the formation of rainwater ponds. In order to ensure adequate drainage, BS 6229: 2003 (Flat roofs with continuously supported coverings. Code of practice) recommends uniform gradients of not less than 1 in 80. However, because of building settlement, it is advisable to design in even greater falls.

Kingspan Styrozone®

Grating

High performance non−woven polyethylene membrane

Paving slabs on cruciform supports

Riser / extension piece Gravel

Protected membrane roofing systems incorporating Kingspan Styrozone® can be laid on roofs with a finished fall of less than 1:80, but the waterproofing system must be of a tanking specification.

Non–woven polyester fleece layer (if required)

Screed to falls

Figure 8 – Two Level Drainage

Outlet

Mastic asphalt waterproofing

Concrete deck

Rainfall Factors High performance non−woven Aluminium Paving slabs polyethylene membrane edge trim on cruciform Proprietary supports Kingspan mechanical fixing Styrozone® Vertical insulation Kingspan Purlcrete®chevron backed by an additional layer of Kingspan Styrozone®

Screed to falls

Gravel (paving slab)

Concrete deck

The requirements of BS / I.S. EN ISO 6946: 2007 part D.4.2 (Correction due to water flowing beneath the insulation and the waterproofing membrane) dictate that inverted roof constructions are subject to a geographical rainfall analysis. The cooling effect of rainwater flowing between and beneath the insulation boards, can mean that greater thicknesses of insulation are required to meet desired U−values, particularly in locations that receive high levels of rainfall.

Mastic asphalt waterproofing

The use of a high performance non−woven polyethylene membrane over the insulation (see figs 6−11), can dramatically minimize heat loss by reducing the amount of rainwater that flows between and beneath the insulation boards.

Non–woven polyester fleece layer (if required)

This reduction in rainwater flow is represented by the infiltration (fx) factor of the membrane. The fx factor of a membrane is fall (gradient) specific, and an fx factor measured on a fall can not be used to represent the performance of a membrane if installed horizontally.

Figure 9 – Internal Gutter ®

Kingspan Kooltherm K8 Cavity Board taken up as high as the flat roof insulation upstand Damp proof course

Cover flashing High performance non−woven Kingspan polyethylene Purlcrete®chevron membrane upstand min. 300 mm from bottom surface of Kingspan Styrozone® horizontal insulation layer

Cavity closer

Drainage

150 mm min.

The number and type of rainwater outlets should be assessed in accordance with BS EN 12056–3: 2000 (Gravity drainage systems inside buildings. Roof drainage, layout and calculation). The rainwater outlets should be double entry type, to allow rainwater to be drained from the roof surface at both the membrane level and the upper surface level. When using paving slabs as ballast, on a roof with a finished fall of less than 1:80, they must be laid on supports, in order to aid drainage.

Damp–proof course to drain internally or externally as specified

Mastic asphalt waterproofing

Paving slabs on Concrete Screed cruciform supports deck to falls

Non–woven polyester fleece layer (if required)

The drainage of green roofs should be carefully considered, especially in the case of intensive systems, which may require a moisture retention layer to ensure adequate moisture levels for the system but still allow the rapid drainage of excess rainwater. Dam type rainwater outlets that hold water in the system are not recommended, as the depth of water may create a moisture vapour impermeable layer above the insulation.

Figure 10 – Parapet Abutment

Paving slabs on cruciform supports

Proprietary mechanical fixing

High performance non−woven polyethylene membrane

Non–woven polyester fleece layer (if required)

Aluminium edge trim Upstand insulation Kingspan Purlcrete®chevron backed by an additional layer of Kingspan Styrozone®

Kingspan Styrozone®

Concrete deck

Mastic asphalt waterproofing

Figure 11 – Change in Level

Roof Waterproofing Kingspan Styrozone® is suitable for use over some fully adhered single–ply waterproofing membranes.

Types of Green Roof Green roof systems can be divied into two main categories.

Kingspan Styrozone® is also suitable for use over mastic asphalt waterproofing systems. Mastic asphalt waterproofing should be laid, where applicable, in accordance with BS 8218: 1998 (Code of practice for mastic asphalt roofing). Mastic asphalt should always be laid over an isolating layer of loose–laid Type 4A sheathing felt to BS 747: 2000 (Reinforced bitumen sheets for roofing. Specification).

Extensive green roofs comprise a relatively shallow growing medium and low maintenance vegetation such as grass. They are lightweight, simple to design, construct and maintain, but should not be considered suitable for regular traffic or recreational activities. Extensive systems are especially useful in creating green areas for both ecological and aesthetic reasons.

Kingspan Styrozone® is also suitable for use over some hot and cold liquid applied waterproofing systems.

Semi–intensive green roofs comprise a deeper growing medium and vegetation such as grass, perennials and shrubs. They are designed to be more garden–like and to accommodate limited access for maintenance and recreation.

Mastic asphalt, some single–ply and some hot liquid applied waterproofing systems require a separation layer (non−woven polyester fleece layer, 130 –140 g/m2, with an overlap of 250 – 300 mm) positioned between the membrane and the insulation.

Intensive green roofs have a much deeper growing medium and a wider variety of flora, including grass, shrubs and smaller trees. They are comparable with normal gardens in respect of maintenance, and can be used for recreation activities. The self weight of the system can be very high, due to the increased soil depth.

Waterproofing systems containing solvents should be allowed to fully cure before installing Kingspan Styrozone® insulation.

Water Vapour Control

Careful design and detailing of both roof types is important and includes the following elements.

Protected membrane roofs are inherently safe in respect of condensation risk. The roof design can be assessed for the risk of interstitial condensation using BS 5250: 2002 (Code of practice for control of condensation in buildings) or BS 6229: 2003 (Flat roofs with continuously supported coverings. Code of practice).

Growing Medium In its simplest form this is normal soil. Specialist mixtures are available, incorporating expanded clay and lava rock, which form the growing medium and have filtration, drainage and moisture retention functions.

Green Roofs

Drainage Layer The drainage layer normally consists of either: a layer of washed gravel 8/16; expanded clay; or a specialist ‘egg carton’ or castellated plastic (HDPE) sheeting; all overlaid with a filtration membrane. The drainage layer allows the rapid removal of excess rainwater from the roof, thus avoiding saturation of the soil and the associated increase in weight.

Benefits Green roofs, are an alternative to the standard protected membrane roof that offer many advantages but require precise design and detailing. Specifically they can: G

reduce dust levels and improve humidity;

provide a habitat for wildlife;

create usable areas for recreational activities;

G G G

Moisture Retention Layer The limited depth of soil, especially in the extensive type of roof, may require the use of a moisture retention layer to ensure sufficient water is available for the vegetation.

retain rainfall thus prevent water surges into the drainage system;

Root Barrier The roots of growing plants can seriously damage waterproof membranes, by growing into any small cracks, lap joints or other discontinuities. A root barrier may be formed by a separate cap sheet of polythene, or bitumen felt incorporating a thin copper film. The cap sheet is either adhered or loose–laid onto the waterproof membrane, with all joints sealed by bonding or welding, and must be continued up vertical faces of upstands.

improve sound insulation; and provide a visually more attractive finish than protected membrane roofs with gravel or paving slab ballast.

Sitework Waterproofing

High Performance Non–Woven Polyethylene Membrane

G A high performance non−woven polyethylene membrane

Prior to installing the insulation, it is essential to ensure that the waterproofing system has been installed correctly and that the roof is watertight and clean.

should be laid over the insulation boards. G Where one run of the membrane laps another, there

Single–ply membranes, in particular, need careful attention to ensure that there has been no damage from following trades, and that puncturing from below the membrane (from nail heads or debris) cannot occur.

should be a minimum 300 mm side and end overlaps. G The membrane should be turned up at the edge of the

roof insulation and sealed under the flashing.

If a single–ply membrane or mastic asphalt waterproofing system has been installed, a non−woven polyester fleece separation layer, with 250 – 300 mm overlaps, should be laid on top of the membrane prior to the installation of the insulation.

Gravel Ballast G

Insulation Boards

G Start laying the Kingspan Styrozone® insulation boards

from the point of access to the roof. G Insulation boards should always be loose–laid

break–bonded, either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments.

Install the ballast layer as soon as possible, to ensure that the high performance non−woven polyethylene membrane is always protected and excessive heat build up or high winds do not damage the insulation boards. Gravel ballast should be washed, rounded, nominal 20–40 mm diameter, and of minimum depth 50 mm. The diameter of the gravel is important as this size has been found to be the most resistant to wind scour, BRE Digest 311 gives advice.

Paving Slab Ballast

G If two or more layers of insulation are required, they should

be horizontally offset relative to each other so that, as far as possible, the board joints in any two adjacent layers do not coincide with each other (see Figure 12). First and third, if required, insulation layer

Min. 50 mm thick paving slabs should be laid, over the high performance non−woven polyethylene membrane, on proprietary paving slab supports of minimum diameter 175 mm (or equivalent base area), in order to maintain drainage below the slabs, and to ensure that moisture vapour can escape. Install paving slabs and supports as soon as possible, to ensure that the high performance non−woven polyethylene membrane is always protected and excessive heat build up or high winds do not damage the insulation boards. Gaps between the paving slabs and upstands should be filled with washed, rounded gravel, nominal 20–40 mm diameter.

Roof Gardens G

Second and fourth insulation layer, if required, offset relative to first and third.

Figure 12 Offsetting of Multiple Insulation Layers G Roof–light or ventilator kerbs, gutter etc. should always

insulated (Kingspan Purlcrete®chevron with a separate backing layer of Kingspan Styrozone®) to the same U–value as the general roof area. G A Kingspan Purlcrete®chevron upstand should be used

around the perimeter of the roof on the internal façade of parapets.

G A minimum distance of 300 mm should be maintained

between the top of the insulation upstand and the bottom of the horizontal roof insulation. G Boards can be laid in any weather but, due to the light weight

of the boards, care must be taken in windy conditions. 9

Having chosen the type of planting system and correctly detailed the various filter layers, moisture retention layers and growing medium, the installation, especially of extensive systems, is quick and simple. A root barrier (unless provided by the waterproofing layer) should be loose–laid on or bonded to the waterproofing membrane with all the laps sealed. The root barrier should be turned up at the edge of the roof insulation and sealed under the flashing. Kingspan Styrozone® should be installed as described previously. Boards should be overlaid with a high performance non−woven polyethylene membrane, which should be installed as described previously.

Product Details Composition G G

Kingspan Styrozone® H 350 R is a high performance rigid extruded polystyrene insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and has a smooth, dense skin on both faces.

A filtration layer or combined filtration layer / drainage mat is then installed, per its manufacturer’s instructions. The growing medium, generally 50–200 mm deep is then installed. Specialist spray systems are available, which allow the application of growing medium and grass / plant seed to be applied in one operation.

Kingspan Styrozone® N 300 R is a high performance rigid extruded polystyrene insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP) and has a smooth, dense skin on both faces.

The depth of growing medium should be assessed for wind loads in accordance with BS 6399–2: 1997 (Loading for buildings. Code of practice for wind loads).

General

Standards and Approvals

Cutting G Cutting should be carried out either by using a fine toothed saw, or by scoring with a sharp knife and snapping the board over a straight edge. G

Kingspan Styrozone® is manufactured to the highest quality standards under a quality control system certified to EN ISO 9001: 2000 (Quality management systems. Requirements).

Ensure accurate trimming to achieve close–butting joints and continuity of insulation.

Standard Dimensions

Availability G Kingspan Styrozone® is available through specialist insulation distributors and selected roofing merchants throughout the UK and Ireland.

All products in the Kingspan Styrozone® range are available in the following standard size: Nominal Dimension Length Width Insulant Thickness

Packaging and Storage G The polyethylene packaging of Kingspan Insulation products, which is recyclable, should not be considered adequate for outside protection. G

Availability (m) (m) (mm)

Edge Profile

Ideally, boards should be stored inside a well ventilated building. If, however, outside storage cannot be avoided, then the boards should be stacked clear of the ground and covered with a pale pigmented polythene sheet or weatherproof tarpaulin.

1.25 0.6 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes. Rebated

Compressive Strength The compressive strengths of Kingspan Styrozone® H 350 R and N 300 R typically exceed 300 kPa at 10% compression, when tested to EN 826: 1996 (Thermal insulating product for building applications. Determination of compression behaviour).

Kingspan Styrozone® should not be left in the sun covered by either a transparent or a dark plastic sheet, since in both cases, board temperatures can build up to a level hot enough to appreciably alter their dimensions or warp them.

Thermal Expansion The linear thermal expansion coefficient of Kingspan Styrozone® is 0.07 mm/m.K.

Health and Safety G Kingspan Insulation products are chemically inert and safe to use. G A Safety Information Data Sheet for this product is

available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety. Warning – do not stand on or otherwise support your weight on this product unless it is fully supported by a load–bearing surface.

Water Vapour Resistivity

Thermal Properties The λ–values and R–values detailed below are quoted in accordance with EN 13164: 2008 (Thermal insulation products for buildings – Factory made products of extruded polystyrene (XPS) – Specification).

The boards achieve a resistivity greater than 825 MN.s/g.m, when tested in accordance with EN 12086: 1997 (Thermal insulating products for building applications. Determination of water vapour transmission properties).

Absorption of Moisture

Thermal Conductivity The boards achieve a thermal conductivity (λ–value) of Kingspan Styrozone® H 350 R is: 0.029 W/m.K (insulant thickness ≤ 120 mm); and 0.031 W/m.K (insulant thickness > 120 mm).

Kingspan Styrozone® is highly resistant to water absorption. It is very resistant to the passage of water vapour, and unaffected by repeated freeze / thaw cycles.

Durability

Kingspan Styrozone® N 300 R is: 0.038 W/m.K (insulant thickness 100–160 mm); and 0.040 W/m.K (insulant thickness > 160 mm).

If correctly installed, Kingspan Styrozone® can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Thermal Resistance Thermal resistance (R–value) varies with thickness and is calculated by dividing the thickness of the board (expressed in metres) by its thermal conductivity. The resulting number is rounded down to the nearest 0.05 (m2.K/W).

Resistance to Solvents, Fungi & Rodents Kingspan Styrozone® is resistant to most commonly occurring construction materials such as lime, cement, plaster, anhydrous gypsum, solvent–free bituminous compounds, water–based wood preservatives, as well as alcohols, acids and alkalis. Certain organic materials such as solvent–based wood preservatives, coal tar and derivatives (creosote), paint thinners and common solvents (e.g. acetone, ethyl acetate, petrol, toluene and white spirit) will attack Kingspan Styrozone®, resulting in softening, shrinkage and possible dissolution, with a consequent loss of performance.

Insulant Thickness (mm) 80 100 120 140 160 180

Thermal Resistance (m2.K/W) H 350 R N 300 R 2.75 3.40 4.10 4.50 5.15 –

– 2.60 3.15 3.65 4.20 4.50

NB Multiple layers of insulation are required for higher thermal resistances.

Kingspan Styrozone® does not provide any food value to vermin and is not normally attractive to them.

NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Fire Performance Kingspan Styrozone®, when subjected to the British Standard fire test specified in the table below, will achieve the result shown, when the surface finish is either minimum 50 mm gravel ballast or minimum 40 mm paving slabs. For specifications without the gravel ballast or paving slabs please consult the manufacturer of the specific external weatherproofing / ballast for their fire classification details. Test

Result

BS 476–3: 2004 (External fire exposure roof test)

FAA rating

Further details on the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

Maximum Service Temperature Kingspan Styrozone® should not be brought into direct contact with high temperature heat sources. The maximum service temperature of Kingspan Styrozone® is 75°C.

NB Kingspan Styrozone® may be delivered in packaging bearing alternative product branding.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 384 – Fax: +44 (0) 1544 387 484 – email: literature@kingspaninsulation.co.uk – www.kingspaninsulation.co.uk/literature

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie – www.kingspaninsulation.ie/literature

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Please contact the Kingspan Insulation Technical Service Department on the numbers below: UK

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Kingspan, Kooltherm, Purlcrete, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK, Ireland and other countries. All rights reserved. ® Styrozone is a Registered Trademark. Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456. Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Insulation CI/Sfb

(27.9)

Rn7

Seventh Issue

March 2011

Car Park Decks INSULATION FOR CAR PARK DECKS

G G

High performance rigid extruded polystyrene insulation – thermal conductivities as low as 0.029 W/m.K High compressive strength withstands vehicle loads Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non−deleterious material Manufactured with a blowing agent that has zero ODP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Parking Decks, Cars and Light Commercial Vehicles (Non HGV)

Assumptions The U−values in the tables that follow have been calculated, under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U–value and Condensation Risk Calculations, using the method detailed in BS / I.S. EN ISO 6946: 2007 (Building components and building elements. Thermal resistance and thermal transmittance. Calculation method) and using the conventions set out in BR443 (Conventions for U−value calculations). They U−values in the tables that follow are valid for the constructions shown in the details immediately above each table.

(Maximum Individual Wheel Load – 1 Tonne)

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

18 mm exterior grade plywood

Cover flashing

Insulation upstand (e.g. Kingspan Thermaroof® TR27 LPC/FM) min. 300 mm from bottom surface of horizontal insulation layer 25 mm or 30 mm single coat paving grade asphalt to BS 1447: 1988 Expanded metal substrate 2 layer mastic asphalt waterproofing Type 4A sheathing felt to BS 747: 2000 Kingspan Styrozone®

NB For the purposes of these calculations the standard of workmanship has been assumed good and therefore the correction factor for air gaps has been ignored.

75 mm thickness of Lytag / sand concrete Grade 20, with A142 steel wire mesh reinforcement at mid–height laid to falls

NB The figures quoted are for guidance only. A detailed U−value calculation together with condensation risk analysis should be completed for each individual project. NB If your construction is different from those specified and / or to gain a comprehensive U−value calculation along with a condensation risk analysis for your project please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

Type 2 breathable building paper

U–value Table Key

In−situ or precast 200 mm concrete deck to falls

Wall insulation taken up at least as high as the flat roof insulation upstand

Figure 2a

U−values (W/m2.K) with Different Grades of Kingspan Styrozone® Insulant Thickness Kingspan Kingspan (mm) Styrozone® N 300 R Styrozone® H 350 R 100 120 140 160 180 120 + 50* 100 + 80* 100 + 100 80 + 80 + 50* 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 140* 160 + 160 120 + 120 + 120

* Excluding Change of Use and Material Alterations.

0.24 0.21 0.20 n/a 0.19 0.18 n/a 0.16 0.15 0.14 0.13 0.12 0.11 0.10

0.22 0.20 0.18 n/a 0.16 0.15 0.14 0.13 0.12 0.11 0.11 0.11 0.10 0.09 0.08

* Where there are multiple layers of insulation of different thicknesses the thickest insulation board is installed first.

Design Considerations Loading Bays, Service Decks and Commercial Vehicles

Linear Thermal Bridging Reasonable provision must be made to limit the effects of cold bridging. The design should ensure that roof–light or ventilator kerbs etc. are always insulated with Kingspan Thermaroof® TR27 LPC/FM to the same U–value as the general roof area. A 25 mm thick Kingspan Thermaroof® TR27 LPC/FM upstand should be used around the perimeter of the roof on the internal façade of parapets. A minimum distance of 300 mm should be maintained between the top of the insulation upstand and the bottom of the horizontal roof insulation. Wall insulation should also be carried up into parapets as high as the flat roof insulation upstand. Please contact the Kingspan Insulation Technical Service Department (see rear cover) for further advice.

(Design Should be Verified as to Suitability for Specific Wheel Loads) 18 mm exterior grade plywood

Cover flashing

Insulation upstand (e.g. Kingspan Thermaroof® TR27 LPC/FM) min. 300 mm from bottom surface of horizontal insulation layer 40 mm single coat paving grade asphalt to BS 1447: 1988 Expanded metal substrate 2 layer mastic asphalt waterproofing Type 4A sheathing felt to BS 747: 2000 Kingspan Styrozone®

Sustainability & Responsibility

100 mm thickness of Lytag / sand concrete Grade 20, with A142 steel wire mesh reinforcement at mid–height laid to falls Type 2 breathable building paper

Wall insulation taken up at least as high as the flat roof insulation upstand

In−situ or precast 200 mm concrete deck to falls

Figure 2b

Insulant Thickness (mm) 120 80 + 50* 50 + 50 + 50 120 + 50* 80 + 50 + 50 120 + 80* 80 + 80 + 50 120 + 50 + 50 120 + 120 120 + 80 + 50 80 + 80 + 50 + 50 120 + 120 + 50 120 + 120 + 80 120 + 120 + 50 + 50

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

U−values (W/m2.K) Kingspan Styrozone® N 500 R

0.25 0.22 0.20 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.10

Specification Clause Kingspan Styrozone® should be described in the specification as:– The roof insulation shall be Kingspan Styrozone® (insert grade) ____mm thick: comprising high performance rigid extruded polystyrene insulation. The product shall be manufactured, with a blowing agent that has zero Ozone Depletion Potential (ODP), under a management system certified to EN ISO 9001: 2000, and shall be installed in accordance with the instructions issued by Kingspan Insulation Limited.

* Where there are multiple layers of insulation of different thicknesses the thickest insulation board is installed first.

Design Considerations NBS Specifications

Falls

Details also available in NBS Plus. NBS users should refer to clause(s): J21 440, J31 340, J41 440 (Standard and Intermediate)

The fall on a car park deck, constructed using Kingspan Styrozone®, is normally provided by the screed being laid to falls directed towards the rainwater outlets. The fall should be smooth and steep enough to prevent the formation of rainwater ponds. In order to ensure adequate drainage, BS 6229: 2003 (Flat roofs with continuously supported coverings. Code of practice) recommends uniform gradients of not less than 1 in 80. However, because of building settlement, it is advisable to design in even greater falls.

Product Selection The high compressive strength of Kingspan Styrozone® makes it particularly suitable for use in car park applications where there are likely to be heavy loads. Consideration must be given to which Kingspan Styrozone® product is most appropriate for the required application. A table of the key distinguishing features is shown below.

Product

Thermal Conductivity (W/m.K)

Density (kg/m3)

Compressive Strength at 10% compression (kPa)

Styrozone® H 350 R Styrozone® N 300 R Styrozone® N 500 R Styrozone® N 700 R

0.029–0.031 0.037–0.040 0.036–0.038 0.036

30 30 35 45

300 300 500 700

Roof Waterproofing Kingspan Styrozone® is suitable for use with mastic asphalt waterproofing systems. Mastic asphalt waterproofing should be laid, where applicable, in accordance with BS 8218: 1998 (Code of practice for mastic asphalt roofing). Mastic asphalt should always be laid over an isolating layer of loose–laid Type 4A sheathing felt to BS 747: 2000 (Reinforced bitumen sheets for roofing. Specification), itself laid over a layer of Lytag / sand concrete, Grade 20, laid to falls with A142 steel wire mesh reinforcement at mid–height. The exposed face of insulation upstands, at parapets and abutments, must be lined with 18 mm exterior grade plywood, prior to the mastic asphalt waterproofing being laid. The plywood is used as an anchor point for the expanded metal substrate onto which the vertical mastic asphalt is laid.

Design Loads & Roof Structure Whilst almost any form or roof deck (timber, metal or concrete) can be used with protected membrane roofing systems, the traffic load and additional dead load from the ballast layer invariably limits this type of roof to concrete decks.

Water Vapour Control There is no requirement for a vapour control layer on car park decks where Kingspan Styrozone® is overlaid with screed and a mastic asphalt finish. However, this type of roof build up can not be used on high humidity buildings.

Data on specific concentrated loads is contained in BS 6399 −1: 1996 (Loading for buildings. Code of practice for dead and imposed loads). Department of Transport departmental standard BD 21/84 gives typical single wheel loads, depending on the type of vehicle, that act over a 150 mm square or 170 mm diameter contact area. The tyre pressure is taken as 1.1 N/mm2, in practice real tyre pressures are lower than this thus giving a lower load intensity. Vehicle Type (Weight in Tonnes) Cars and vans (<3) Vehicles generally (3–7.5) Vehicles generally (7.5–40) Fire engines (up to 60 kN axle load) Fire engines (up to 120 kN axle load)

Nominal Single Wheel Load (kN) 25 50 100 30 60

Sitework Insulation Boards

Screed and Mastic Asphalt

G Concrete decks should be clean, dry, without large

G A Type 2 breathable building paper should be laid over the

projections, steps or gaps.

boards and turned up at abutments.

G Start laying the Kingspan Styrozone insulation boards

G Reinforcement can then be fixed and the concrete poured

from the point of access to the roof.

and compacted in accordance with BS 8110−1: 1997 (Structural use of concrete. Code of practice for design and construction).

G Insulation boards should always be loose–laid break–

bonded, either with their long edges at right angles to the edge of, or diagonally across the roof, and with joints lightly butted. There should be no gaps at abutments.

G The mastic asphalt waterproofing is installed in accordance

with the membrane manufacturer’s instructions, over the whole insulated area including any insulation upstands.

G If two or more layers of insulation are required, they should

be horizontally offset relative to each other so that, as far as possible, the board joints in any two adjacent layers do not coincide with each other (see Figure 3).

General Cutting G Cutting should be carried out either by using a fine toothed saw, or by scoring with a sharp knife and snapping the board over a straight edge.

First and third, if required, insulation layer

G Ensure accurate trimming to achieve close−butting joints

and continuity of insulation. Availability

G Kingspan Styrozone® is available through specialist

insulation distributors and selected roofing merchants throughout the UK and Ireland. Packaging and Storage G The polyethylene packaging of Kingspan Insulation products, which is recycable, should not be considered adequate for outside protection.

Second and fourth insulation layer, if required, offset relative to first and third.

G Ideally, boards should be stored inside a well ventilated

Figure 3 Offsetting of Multiple Insulation Layers

building. If, however, outside storage cannot be avoided, then the boards should be stacked clear of the ground and covered with a pale pigmented polythene sheet or weatherproof tarpaulin.

G Roof–light or ventilator kerbs etc. should always insulated

with Kingspan Thermaroof® TR27 LPC/FM to the same U–value as the general roof area. G A 25 mm thick Kingspan Thermaroof TR27 LPC/FM

G Kingspan Styrozone® should not be left in the sun covered

upstand should be used around the perimeter of the roof on the internal façade of parapets.

by either a transparent or a dark plastic sheet, since in both cases, board temperatures can build up to a level hot enough to appreciably alter their dimensions or warp them.

G A minimum distance of 300 mm should be maintained

between the top of the insulation upstand and the bottom of the horizontal roof insulation.

Health and Safety G Kingspan Insulation products are chemically inert and safe to use.

G Boards can be laid in any weather but, due to the light weight

G A Safety Information Data Sheet for this product is

of the boards, care must be taken in windy conditions.

available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety. or www.kingspaninsulation.ie/safety. Warning – do not stand on or otherwise support your weight on this product unless it is fully supported by a load–bearing surface.

Product Details Composition

Thermal Expansion

The linear thermal expansion coefficient of Kingspan Styrozone® is 0.07 mm/m.K.

Water Vapour Resistivity The boards achieve a resistivity greater than 825 MN.s/g.m, when tested in accordance with EN 12086: 1997 (Thermal insulating products for building applications. Determination of water vapour transmission properties).

Kingspan Styrozone N 300 R, N 500 R and N 700 R are high performance rigid extruded polystyrene insulants manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP) and have a smooth, dense skin on both faces. ®

Absorption of Moisture Kingspan Styrozone® is highly resistant to water absorption. It is very resistant to the passage of water vapour, and unaffected by repeated freeze / thaw cycles.

Standards and Approvals Kingspan Styrozone® is manufactured to the highest quality standards under a quality control system certified to EN ISO 9001: 2000 (Quality management systems. Requirements).

Durability If correctly installed, Kingspan Styrozone® can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Standard Dimensions All products in the Kingspan Styrozone® range are available in the following standard size: Nominal Dimension Length Width Insulant Thickness

Edge Profile

Resistance to Solvents, Fungi & Rodents

Availability (m) (m) (mm)

Kingspan Styrozone® is resistant to most commonly occurring construction materials such as lime, cement, plaster, anhydrous gypsum, solvent−free bituminous compounds, water−based wood preservatives, as well as alcohols, acids and alkalis. Certain organic materials such as solvent−based wood preservatives, coal tar and derivatives (creosote), paint thinners and common solvents (e.g. acetone, ethyl acetate, petrol, toluene and white spirit) will attack Kingspan Styrozone®, resulting in softening, shrinkage and possible dissolution, with a consequent loss of performance.

1.25 0.6 Refer to local distributor or Kingspan Insulation price list for current stock and non−stock sizes. Rebated*

* Straight edge boards for non–protected membrane applications are available upon request.

Compressive Strength The compressive strengths of Kingspan Styrozone® are as follows:

Kingspan Styrozone® does not provide any food value to vermin and is not normally attractive to them.

Kingspan Styrozone® H 350 R – 300 kPa; Kingspan Styrozone® N 300 R – 300 kPa; Kingspan Styrozone® N 500 R – 500 kPa; and Kingspan Styrozone® N 700 R – 700 kPa, at 10% compression, when tested to EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

Fire Performance

Thermal Properties The λ−values and R−values detailed below are quoted in accordance with the EN 13164: 2008 (Thermal insulation products for buildings – Factory made products of extruded polystyrene (XPS) – Specification).

Kingspan Styrozone®, when subjected to the British Standard fire test specified in the table below, will achieve the result shown, when the surface finish is either minimum 40 mm paving slabs. or 75 mm thickness of Lytag / sand concrete Grade 20, with A142 steel wire mesh reinforcement at mid–height. For specifications without the paving slabs or concrete please consult the manufacturer of the specific external weatherproofing / ballast for their fire classification details. Test

Result

BS 476–3: 2004 (External fire exposure roof test)

FAA rating

Thermal Conductivity The boards achieve a thermal conductivity (λ−value) of Kingspan Styrozone® H 350 R is: 0.029 W/m.K (insulant thickness ≤ 120 mm); and 0.031 W/m.K (insulant thickness > 120 mm). Kingspan Styrozone® N 300 R is: 0.037 W/m.K (insulant thickness ≤ 80 mm); 0.038 W/m.K (insulant thickness 100−160 mm); and 0.040 W/m.K (insulant thickness > 160 mm).

Further details on the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

Kingspan Styrozone® N 500 R is: 0.036 W/m.K (insulant thickness ≤ 70 mm); and 0.038 W/m.K (insulant thickness > 70 mm).

Maximum Service Temperature Kingspan Styrozone® should not be brought into direct contact with high temperature heat sources. The maximum service temperature of Kingspan Styrozone® is 75°C.

Kingspan Styrozone® N 700 R is: 0.036 W/m.K (insulant thickness ≤ 50 mm). Thermal Resistance Thermal resistance (R−value) varies with thickness and is calculated by dividing the thickness of the board (expressed in metres) by its thermal conductivity. The resulting number is rounded down to the nearest 0.05 (m2.K/W). Insulant Thickness (mm) 50 80 100 120 140 160 180

Thermal Resistance (m2.K/W) H 350 R N 300 R N 500 R N 700 R 1.70 2.75 3.40 4.10 4.50 5.15 –

– 2.15 2.60 3.15 3.65 4.20 4.50

1.35 2.10 – 3.15 – – –

1.35 – – – – – –

NB Multiple layers of insulation are required for higher thermal resistances. NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes. NB Where a hyphen is shown the thickness is not available.

NB Kingspan Styrozone® may be delivered in packaging bearing alternative product branding.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 384 – Fax: +44 (0) 1544 387 484 – email: literature@kingspaninsulation.co.uk – www.kingspaninsulation.co.uk/literature

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie – www.kingspaninsulation.ie/literature

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Please contact the Kingspan Insulation Technical Service Department on the numbers below: UK

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Kingspan, Thermaroof, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK, Ireland and other countries. All rights reserved. ® Styrozone is a Registered Trademark. Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456. Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Wall Insulation

Insulation CI/Sfb

(27.9)

Eighth Issue

Rn7

March 2011

K5 External Wall Board EXTERNAL INSULATION FOR MASONRY WALLS G

Premium performance rigid thermoset insulation – thermal conductivities as low as 0.020 W/m.K

Class 0 fire rating

Class 0 fire rated insulation core

Negligible smoke obscuration

G G

Suitable for use behind traditional and lightweight polymer modified renders and dry cladding systems Unaffected by air infiltration Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non−deleterious material Manufactured with a blowing agent that has zero ODP and low GWP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

Refurbishment

100 mm Brick / 50 mm Cavity / 100 mm Brick Wall 13 mm dense plaster Bedding compound (render system only) Kingspan Kooltherm K5 External Wall Board ®

Render system incorporating EML or glass fibre mesh (alternative cladding system) Timber cladding on battens (alternative cladding system)

For the refurbishment examples, the internal wall finish is taken as 13 mm dense plaster unless stated otherwise. For the new build examples, the internal wall finish is taken to be a 3 mm skim coated 12.5 mm plasterboard on dabs, unless stated otherwise. In all examples, where the external wall finish is rendered, this is taken to be a 10 mm polymer render.

Slate / tile on tiling battens and vertical battens (alternative cladding system)

NB When calculating U–values to BS / I.S. EN ISO 6946: 2007, the type of mechanical fixing used may change the thickness of insulation required. These calculations assume telescopic tube fasteners with a thermal conductivity of 1.00 W/m.K or less, the effect of which is insignificant. For the ‘Ventilated Cladding’ options the use of carbon steel fasteners of cross sectional area of 7.44 mm2 has been assumed at a density of 4.4 per m2.

Mechanical fixings (render system only)

Figure 1 U–values for Various Thicknesses of Kingspan Kooltherm® K5 External Wall Board with Different Cladding Systems

NB For the purposes of these calculations the standard of workmanship has been assumed good, and therefore the correction factor for air gaps has been ignored.

Insulant Thickness (mm)

NB The figures below are for guidance only. A detailed U–value calculation and a condensation risk analysis should be completed for each project.

U−values (W/m2.K) 10 mm Polymer Render

NB If your construction is different from those specified, and / or to gain a comprehensive U−value calculation along with a condensation risk analysis of your project, please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

50 55 60 70 75 80 90 100 110 120

U–value Table Key Where an is shown, the U−value is higher than the worst of the maximum new build area weighted average / refurbishment (as applicable) U−values allowed by the 2010 Editions of Approved Documents L to the Building Regulations (England & Wales), the 2010 Editions of Technical Handbooks Section 6 (Scotland), the 2006 Editions of Technical Booklets F (Northern Ireland), or the 2008 Editions of Technical Guidance Documents L* (Republic of Ireland).

0.29 0.27 0.24 0.22 0.21 0.19 0.17 0.16 0.15 Ventilated Cladding e.g. Timber or Tile Hanging

50 55 60 70 75 80 90 100 110 120

* Excluding Change of Use and Material Alterations.

0.29 0.27 0.24 0.22 0.21 0.19 0.17 0.16 0.15

Solid Brick Wall

102.5 mm Brick / 50 mm Cavity / 100 mm Block Wall 13 mm dense plaster

13 mm dense plaster Bedding compound (render system only)

Bedding compound (render system only)

Kingspan Kooltherm K5 External Wall Board

Render system incorporating EML or glass fibre mesh (alternative cladding system)

Timber cladding on battens (alternative cladding system)

Slate / tile on tiling battens and vertical battens (alternative cladding system)

Mechanical fixings (render system only)

Figure 2

Figure 3

U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K5 External Wall Board on Different Thicknesses of Brickwork with Different Cladding Systems Insulant Thickness (mm)

U−values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K5 External Wall Board with Different Cladding Systems

Brickwork Thickness (mm) 102.5 10 mm Polymer Render

50 55 60 70 75 80 90 100 110 120 125

0.29 0.26 0.24 0.23 0.20 0.18 0.17 0.16 0.15

Insulant Thickness (mm)

215

0.29 0.25 0.24 0.23 0.20 0.18 0.17 0.16 0.15

Inner Leaf Blockwork Density and λ–value (W/m.K) Dense (1.13)

Medium (0.51)

Lightweight (0.15)*

10 mm Polymer Render

40 45 50 55 60 70 75 80 90 100 110 120

0.30 0.28 0.25 0.23 0.22 0.20 0.18 0.17 0.15 0.15

Ventilated Cladding e.g. Timber or Tile Hanging 50 55 60 70 75 80 90 100 110 120 125

Mechanical fixings (render system only)

40 45 50 55 60 70 75 80 90 100 110 120

0.30 0.28 0.25 0.23 0.22 0.20 0.18 0.16 0.15 0.15

0.29 0.30 0.27 0.29 0.28 0.26 0.27 0.26 0.24 0.24 0.23 0.21 0.23 0.22 0.20 0.21 0.21 0.19 0.19 0.19 0.18 0.18 0.17 0.16 0.16 0.16 0.15 0.15 0.15 0.14 Ventilated Cladding e.g. Timber or Tile Hanging

0.29 0.27 0.24 0.22 0.21 0.19 0.18 0.16 0.15

0.30 0.28 0.26 0.23 0.22 0.21 0.19 0.17 0.16 0.15

0.28 0.26 0.25 0.23 0.21 0.20 0.19 0.17 0.16 0.15 0.14

0.29 0.27 0.25 0.24 0.21 0.20 0.19 0.18 0.16 0.15 0.14

0.28 0.26 0.24 0.23 0.21 0.20 0.19 0.17 0.16 0.15 0.14

* A 6.6% thermal bridging factor has assumed for the effect of mortar joints.

Aerated (0.11)*

Typical Constructions and U–values New Build 100 mm Dense Block* / 50 mm Cavity / 100 mm Dense Block* Wall (Original Render Removed)

215 mm Solid Blockwork Wall

13 mm dense plaster

Bedding compound (render system only)

3 mm skim coated 12.5 mm plasterboard on plaster dabs

Kingspan Kooltherm K5 External Wall Board ®

Render system incorporating EML or glass fibre mesh (alternative cladding system)

Timber cladding on battens (alternative cladding system)

Slate / tile on tiling battens and vertical battens (alternative cladding system)

Mechanical fixings (render system only)

Figure 4

Figure 5 U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K5 External Wall Board with Different External Weatherproofing Blockwork Density and λ–value (W/m.K) Insulant Thin Joint Thickness Dense Medium Lightweight Aerated Aerated (mm) (1.13) (0.51) (0.15)* (0.11)* (0.11)**

U–values for Various Thicknesses of Kingspan Kooltherm® K5 External Wall Board with Different External Weatherproofing Insulant Thickness (mm)

U−values (W/m2.K) 10 mm Polymer Render

50 55 60 70 75 80 90 100 110 120

0.29 0.27 0.24 0.23 0.22 0.19 0.18 0.16 0.15

20 25 30 40 45 50 60 70 75 80 90 100 110 120

Ventilated Cladding e.g. Timber or Tile Hanging 50 55 60 70 75 80 90 100 110 120

Mechanical fixings (render system only)

0.29 0.27 0.24 0.23 0.21 0.19 0.18 0.16 0.15

0.34 0.32 0.27 0.24 0.23 0.21 0.19 0.18 0.16 0.15

10 mm Polymer Render

0.32 0.30 0.26 0.23 0.22 0.21 0.19 0.17 0.16 0.15

0.35 0.32 0.28 0.26 0.24 0.21 0.19 0.18 0.18 0.16 0.15 0.14 0.13

0.35 0.31 0.29 0.25 0.23 0.22 0.20 0.18 0.17 0.17 0.15 0.14 0.13 0.12

0.34 0.31 0.28 0.25 0.23 0.22 0.20 0.18 0.17 0.16 0.15 0.14 0.13 0.12

Ventilated Cladding e.g. Timber or Tile Hanging 20 25 30 40 45 50 60 70 75 80 90 100 110 120

* Calculations assume dense block of λ–value 1.13 W/m.K

0.34 0.32 0.27 0.24 0.23 0.21 0.19 0.18 0.16 0.15

0.32 0.30 0.26 0.23 0.22 0.20 0.19 0.17 0.16 0.15

0.35 0.32 0.28 0.25 0.24 0.21 0.19 0.18 0.18 0.16 0.15 0.14 0.13

0.35 0.31 0.29 0.25 0.23 0.22 0.20 0.18 0.17 0.17 0.15 0.14 0.13 0.12

* A 6.6% thermal bridging factor has assumed for the effect of mortar joints. ** A 1.4% thermal bridging factor has assumed for the effect of mortar joints.

0.34 0.30 0.28 0.25 0.23 0.22 0.20 0.18 0.17 0.16 0.15 0.14 0.13 0.12

Linear Thermal Bridging at Openings Linear thermal bridging describes the heat loss at junctions between elements, where the geometry of the junction means that a building’s primary insulation layer is not continuous or is reduced. This heat loss is represented by the junction’s psi (ψ) value. The ψ–values of all the linear thermal bridges in a building are used in whole building carbon dioxide emissions calculation software.

100 mm Dense Block* Outer Leaf / 50 mm Cavity / 100 mm Block Inner Leaf 3 mm skim coated 12.5 mm plasterboard on plaster dabs Kingspan Kooltherm K5 External Wall Board ®

Render system incorporating EML or glass fibre mesh (alternative cladding system)

At a window or door openings, in a wall insulated with Kingspan Kooltherm® K5 External Wall Board, the linear thermal bridge is the reveal.

Timber cladding on battens (alternative cladding system)

This linear thermal bridge can be avoided, by positioning the window frame so that its outer face is flush with the outer surface of the masonry wall, and overlapping the window frame with the external wall insulation.

Slate / tile on tiling battens and vertical battens (alternative cladding system)

If this is not possible, this linear thermal bridge can be reduced by insulating the reveal. The key factor is the thermal resistance (R–value) of this insulation layer.

Mechanical fixings (render system only)

Accredited Construction Details (England & Wales / Scotland / Northern Ireland) and Acceptable Construction Details (Republic of Ireland), collectively referred to here as ACDs, feature details for walls with external wall insulation, with reveals insulated with a material of minimum thermal resistance (R–value) of 0.60 m2.K/W. These constructions have the following ψ–values: 0.50 W/m.K for a steel lintel with a perforated steel base, 0.30 W/m.K for other lintels (including steel lintels), 0.04 W/m.K for a sill and 0.05 W/m.K for a jamb.

Figure 6 U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K5 External Wall Board with Different External Weatherproofing

Inner Leaf Blockwork Density and λ–value (W/m.K) Insulant Thin Joint Thickness Dense Medium Lightweight Aerated Aerated (mm) (1.13) (0.51) (0.15)** (0.11)** (0.11)***

25 30 35 40 45 50 60 70 75 80 90 100 110 120

0.33 0.30 0.26 0.23 0.22 0.21 0.19 0.17 0.16 0.15

10 mm Polymer Render

0.35 0.31 0.29 0.25 0.23 0.21 0.20 0.18 0.17 0.16 0.14

0.34 0.31 0.28 0.26 0.23 0.21 0.20 0.19 0.17 0.16 0.15 0.14

0.35 0.32 0.30 0.27 0.25 0.22 0.20 0.19 0.18 0.17 0.15 0.14 0.13

0.34 0.32 0.29 0.27 0.25 0.22 0.20 0.19 0.18 0.17 0.15 0.14 0.13

Ventilated Cladding e.g. Timber or Tile Hanging 25 30 35 40 45 50 60 70 75 80 90 100 110 120

0.32 0.30 0.26 0.23 0.22 0.21 0.19 0.17 0.16 0.15

0.35 0.31 0.29 0.25 0.22 0.21 0.20 0.18 0.17 0.15 0.14

0.33 0.31 0.28 0.26 0.23 0.21 0.20 0.19 0.17 0.16 0.15 0.14

0.34 0.32 0.29 0.27 0.25 0.22 0.20 0.19 0.18 0.17 0.15 0.14 0.13

0.34 0.31 0.29 0.27 0.25 0.22 0.20 0.19 0.18 0.17 0.15 0.14 0.13

Adhering to these constructions, entitles a designer to use a default y–value in whole building carbon dioxide emissions calculation software. ACDs are specifically targeted at new build constructions but, where applicable, they are also considered best practice for refurbishment. Reveals should be designed to accommodate the 20 mm of Kingspan Kooltherm® K5 External Wall Board required to achieve an R–value of 0.6 m2.K/W, and the depth of the cladding system (see Figure 7).

Masonry

Reduced insulation thickness in reveal Window

* Calculations assume dense block of λ–value 1.13 W/m.K ** A 6.6% thermal bridging factor has been assumed for the effect of mortar joints. *** A 1.4% thermal bridging factor has assumed for the effect of mortar joints.

Kingspan Kooltherm® K5 External Wall Board

Figure 7 5

Design Considerations Environmental Impact & Responsible Sourcing

Specification Clause Kingspan Kooltherm® K5 External Wall Board should be described in specifications as:–

Green Guide Rating An Ecoprofile, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, has been created for Kingspan Kooltherm® K5 External Wall Board produced at Kingspan Insulation’s Pembridge manufacturing facility. The BRE has assigned the product a 2008 Green Guide Summary Rating of A+.

The external wall insulation shall be Kingspan Kooltherm® K5 External Wall Board ____ mm thick: comprising a premium performance rigid thermoset insulation core faced on both sides with a glass tissue based facing. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them.

Environmental Profiles Scheme Certificate Number ENP 410

Responsible Sourcing Kingspan Kooltherm® K5 External Wall Board produced at Kingspan Insulation's Pembridge and Castleblayney manufacturing facilities is manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer component of the product produced at these facilities is also manufactured under a management system certified to BS EN ISO 14001: 2004.

NBS Specifications Details also available in NBS Plus. NBS users should refer to clause(s): M21 210, M21 220, M21 230 (Standard and Intermediate) M21 20 (Minor Works)

Water Vapour Control / Condensation

Consideration should be given to the risk of condensation, when designing thermal elements.

Sustainability & Responsibility

A condensation risk analysis should be carried out following the procedures set out in BS 5250: 2002 (Code of practice for the control of condensation in buildings). The Kingspan Insulation Technical Service Department (see rear cover) can provide this service.

Fire Stops

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

Current Building Regulations / Standards should be considered with regard to the requirements for, and provision of, fire stops.

Sitework Insulated Render Systems G Because insulated render systems are proprietary and Kingspan Kooltherm® K5 External Wall Board

Proprietary bracket fixings dependant on substrate

utilise different mechanisms for attaching insulation to the wall structure, sitework guidance should be sought from the render system manufacturer. However, in the absence of any other guidance, the instructions laid out below may be followed.

Mechanical fixing

G The external masonry wall should be clean, flat, and free

from protrusions. Approx. 25 mm

G Where an uneven surface remains, it is recommended

that a bedding compound can be applied prior to fixing the insulation boards. G External wall insulation should start 150 / 200 / 600* mm

Figure 8 − Drainpipe Extension Detail (Applicable to a Variety of External Building Ancillaries) PVC corner bead Insulated reveal

* 150 mm applies to the UK. 200 mm applies to the Republic of Ireland if a row of insulating blockwork (thermal conductivity < 0.20 W/m.K) is used, otherwise 600 mm applies.

Window Oversill with boxed end, trimmed on−site and fixed to reveal

G Insulation boards should be installed break–bonded, with

Mastic / silicon seal between oversill, window frame and render

joints lightly butted.

Original sill cut back to allow full depth of insulation to be carried up to the reveal

G Care should be taken to install the specified thickness of

20 mm (min.) of Kingspan Kooltherm® K5 External Wall Board under the oversill

insulation around reveals (see Figure 7). G Boards of Kingspan Kooltherm® K5 External Wall Board

Oversill with boxed end Mechanical fixing

are mechanically fixed to the exterior of masonry external walls, preferably using thermally broken telescopic tube fasteners.

Render finish Kingspan Kooltherm® K5 External Wall Board Bedding compound

G A minimum of 5 fixings are required to secure an insulation

Figure 9 − Oversill Extension Detail (Refurbishment)

board to the masonry wall. G Board edges at openings and external corners should be

G Wherever possible, care should be taken to avoid cold

fixed with fasteners at minimum 300 mm centres.

bridging when attaching services and ancillaries to the exterior of the building (see Figure 8).

G Fasteners at board edges must be located > 50 mm, and

G Depending on the render finish being applied, advice must

< 150 mm, from edges and corners of the board, and not overlap board joints.

be sought from the render manufacturer on the EML / glass fibre mesh and bedding mortar to be applied.

G The requirement for additional fixings is dependent on

G In refurbishment projects, sill extenders and flashings

the render system being applied and the type of fixing being used.

should be used around openings, with care taken to avoid cold bridging (see Figure 9).

For details on fixings refer to: +44 (0) 1977 687 040

Helifix Limited www.helifix.co.uk

+44 (0) 20 8735 5222

MAK Fasteners www.makfasteners.com

+353 (0) 1 451 99 00

SFS Intec www.sfsintec.biz/uk

+44 (0) 113 2085 500

Tech Fasteners www.techfasteners.ie

+353 (0) 1 457 33 00

Wallfast Limited www.wallfast.co.uk

+44 (0) 23 928443

Render finish All penetrations to render finish should be sealed e.g. with silicone sealant

below the top surface of the ground floor insulation / perimeter insulation upstand (whichever is higher) for a concrete floor, or 200 mm below the top surface of the ground floor insulation / perimeter insulation upstand (whichever is higher) for a suspended timber floor.

Ejot UK Limited www.ejot.co.uk

Bedding compound (if required)

Extension back plate fixed to substrate prior to insulation being applied

Sitework Ventilated Cladding Systems

General

G Boards of Kingspan Kooltherm® K5 External Wall Board

Cutting G Cutting should be carried out either by using a fine toothed saw, or by scoring with a sharp knife, snapping the board over a straight edge and then cutting the facing on the other side.

should be temporarily fastened to the external masonry wall using mechanical fixings or a bedding compound. G External wall insulation should start 150 / 200 / 600* mm

G Ensure accurate trimming to achieve close−butting joints

and continuity of insulation. Daily Working Practice G At the completion of each day’s work, or whenever work is interrupted for extended periods of time, board edges and joints should be protected from inclement weather.

* 150 mm applies to the UK. 200 mm applies to the Republic of Ireland if a row of insulating blockwork (thermal conductivity < 0.20 W/m.K) is used, otherwise 600 mm applies.

G Insulation boards should be installed break–bonded,

Availability G Kingspan Kooltherm® K5 External Wall Board is available through specialist insulation distributors and selected builders’ merchants throughout the UK and Ireland.

with joints lightly butted. G Care should be taken to install the specified thickness of

insulation around reveals (see Figure 7). G A breathable membrane, e.g. Kingspan nilvent ®, is

Packaging and Storage

installed over the insulation and temporarily stapled or pinned in place.

G The polyethylene packaging of Kingspan Insulation

products, which is recyclable, should not be considered adequate for outdoor protection.

G Minimum 38 mm x 38 mm vertical treated softwood timber

battens are fixed, through the breathable membrane and insulation, to the masonry wall.

G Ideally, boards should be stored inside a building.

G When selecting the type of fixing and fixing frequency for

the vertical battens, consideration must be given to the weight of cladding to be fixed to them, the design of the wall, and wind loading. G For details on fixings refer to the list on the previous page.

Health and Safety G Kingspan Insulation products are chemically inert and safe to use.

G If the cladding system is to be tile / slate hanging, horizontal

tiling battens can then be fixed to the vertical battens.

G Horizontal tiling battens and the tile / slate cladding that is

to be fixed to them should be installed in accordance with the tile / slate cladding manufacturers recommendations. G Alternatively, timber cladding can be fixed directly to the

vertical battens.

A Safety Information Data Sheet for this product is available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety.

Warning – do not stand on or otherwise support your weight on this product unless it is fully supported by a load bearing surface.

G If the cladding system is to be finished with render, the

render carrier (e.g. calcium silicate board, expanded metal lath) can be fixed directly to the vertical battens. G The dry cladding system should be secured in accordance

with the manufacturer’s recommendations. G Wherever possible, care should be taken to avoid cold

bridging when attaching services and ancillaries to the exterior of the building. G In refurbishment projects, sill extenders and flashings

should be used around openings, with care taken to avoid cold bridging.

Product Details The Facings

Compressive Strength

Kingspan Kooltherm® K5 External Wall Board is faced on both sides with a glass tissue based facing, autohesively bonded to the insulation core during manufacture.

The compressive strength of Kingspan Kooltherm® K5 External Wall Board typically exceeds 120 kPa at 10% compression, when tested to BS / I.S.EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

The Core The core of Kingspan Kooltherm® K5 External Wall Board is a premium performance rigid thermoset modified resin insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Standards and Approvals Kingspan Kooltherm® K5 External Wall Board is manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001 : 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

Durability If correctly installed, Kingspan Kooltherm® K5 External Wall Board can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Resistance to Solvents, Fungi & Rodents

Kingspan Kooltherm K5 External Wall Board is used as an integral component of several BBA / NSAI Agrément Certified rendered external wall insulation systems. For further details of BBA / NSAI Agrément Certification please contact the Kingspan Insulation Technical Service Department (see rear cover). ®

Standard Dimensions Kingspan Kooltherm® K5 External Wall Board is available in the following standard size: Nominal Dimension Length Width Insulant Thickness

Availability (m) (m) (mm)

The insulation core and facings used in the manufacture of Kingspan Kooltherm® K5 External Wall Board resist attack by mould and microbial growth and do not provide any food value to vermin.

1.2 0.6 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Product Details Fire Performance

Thermal Properties The λ−values and R−values detailed below are quoted in accordance with BS / I.S. EN 13166: 2008 (Thermal insulation products for buildings – Factory made products of phenolic foam (PF) – Specification).

Kingspan Kooltherm® K5 External Wall Board, and its rigid thermoset insulation core, are Class 0, as defined by the Building Regulations. The rigid thermoset insulation core of Kingspan Kooltherm® K5 External Wall Board, when subjected to the British Standard fire test specified in the table below, has achieved the result shown. Test

Result

BS 5111–1: 1974 (Smoke Obscuration)

< 5% (Negligible smoke obscuration)

Thermal Conductivity The boards achieve a thermal conductivity (λ–value) of: 0.023 W/m.K (insulant thickness 15–24 mm); 0.021 W/m.K (insulant thickness 25–44 mm); and 0.020 W/m.K (insulant thickness ≥ 45 mm). Thermal Resistance Thermal resistance (R–value) varies with thickness and is calculated by dividing the thickness of the board (expressed in metres) by its thermal conductivity. The resulting number is rounded down to the nearest 0.05 (m2.K/W).

Further details of the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

Insulant Thickness (mm)

Thermal Resistance (m2.K/W)

20 25 30 35 40 45 50 55 60 70 75 80 90 100 110 120 125

0.85 1.15 1.40 1.65 1.90 2.25 2.50 2.75 3.00 3.50 3.75 4.00 4.50 5.00 5.50 6.00 6.25

Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Kingspan Insulation Company Details

Insulation Product Benefits

specific U–value.

Kingspan Insulation Ltd is a market leading manufacturer of premium and high performance rigid insulation products and insulated systems for building fabric and building services applications.

G Rigid thermoset insulation core is Class 0, as defined

by the Building Regulations in England, Wales & Ireland, and Low Risk, as defined by the Building Standards in Scotland. G Rigid thermoset insulation core achieves the best possible

Products & Applications

rating of < 5% smoke obscuration when tested to BS 5111: Part 1: 1974.

G Manufactured with a blowing agent that has zero Ozone

Depletion Potential (ODP) and low Global Warming Potential (GWP).

Insulation for: G Pitched Roofs

Kingspan Therma™ Range Products G With a thermal conductivity of 0.022–0.027 W/m.K these are amongst the more thermally efficient insulation products commonly used.

G Flat Roofs G Green Roofs G Cavity Walls

G Each product achieves the required fire performance for its

G Solid Walls

intended application.

G Timber and Steel Framing

G Manufactured with a blowing agent that has zero Ozone

G Insulated Cladding Systems

Depletion Potential (ODP) and low Global Warming Potential (GWP).

G Insulated Render Systems G Floors

G Soffits G Ductwork

Further Solutions: G Insulated Dry–Lining

G Each product achieves the required fire performance for its

G Tapered Roofing Systems

intended application.

G Cavity Closers

G Manufactured with a blowing agent that has zero Ozone

G Kingspan KoolDuct® Pre–Insulated Ducting

Depletion Potential (ODP).

G Kingspan nilvent Breathable Membranes ®

G Kingspan TEK® Building System

G Unaffected by air infiltration – a problem that can be

experienced with mineral fibre and which can reduce thermal performance. G Safe and easy to install – non–fibrous. G If installed correctly, can provide reliable long term thermal

performance over the lifetime of the building.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Ireland

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd is a member of: The Insulated Render and Cladding Association (INCA) The National Insulation Association (NIA)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Kingspan, KoolDuct, Kooltherm, nilvent, Styrozone, TEK, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK, Ireland and other countries. All rights reserved. ™ Therma is a Trademark of the Kingspan Group plc. Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456. Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Insulation CI/Sfb

(27.9)

Tenth Issue

Rn7

March 2011

K8 Cavity Board PARTIAL FILL CAVITY WALL INSULATION

Premium performance rigid thermoset insulation – thermal conductivities as low as 0.020 W/m.K

Class 0 fire rated insulation core

Negligible smoke obscuration

Clear cavity is maintained – resists moisture penetration Low emissivity foil facings significantly increase the thermal resistance of the cavity Meets NHBC technical requirements when used with a 50 mm residual cavity

Unaffected by air infiltration

Easy to handle and install

Non–deleterious material

Manufactured with a blowing agent that has zero ODP and low GWP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

10 mm Polymer Rendered 100 mm Dense Block Outer

Internal Finish − Fair Faced Blockwork Residual cavity (see ‘Design Considerations’)

Inner leaf fair faced blockwork Double drip type wall tie and retaining clip (BBA Approved)

Kingspan Kooltherm® K8 Cavity Board

Kingspan Kooltherm® K3 Floorboard

Damp proof course

Unless stated otherwise the internal wall finish is taken to be a 3 mm skim coated 12.5 mm plasterboard on dabs. These U–values are valid for constructions with both a 40 mm and 50 mm clear residual cavity between the outer surface of the insulation and the inner face of the outer masonry leaf. In a small number of circumstances the U–value is marked with a † or ††. In these cases the U–value shown is valid for a 50 mm cavity and constructions with a 40 mm cavity have a U–value 0.01 W/m.K (annotated †) and 0.02 W/m.K (annotated ††) better (lower) than those shown. The better (lower) U–value results from the wall tie specification, which changes for cavity widths > 150 mm.

Insulation overlap min. 150 / 225*** mm from bottom of wall insulation to top of floor insulation upstand

10 mm polymer rendered 100 mm dense block outer leaf*

Figure 1 U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K8 Cavity Board Insulant Thickness (mm) 25 30 35 40 50 60 70 75 80 90 100 110 120 125

NB When calculating U–values to BS / I.S. EN ISO 6946: 2007, the type of wall tie used may change the thickness of insulation required. For cavity widths ≤ 125 mm, calculations assume a stainless steel flexible tie with 2.5 ties per m2 and a cross–sectional area of 12.50 mm2. For cavity widths > 125 mm, calculations assume a stainless steel flexible tie with 2.5 ties per m2 and a cross–sectional area of 23.00 mm2. For cavity widths > 150 mm, calculations assume a stainless steel flexible tie with 2.5 ties per m2 and a cross–sectional area of 80.00 mm2. NB For the purposes of these calculations the standard of workmanship has been assumed good, and therefore the correction factor for air gaps has been ignored. NB The figures quoted are for guidance only. A detailed U–value calculation and a condensation risk analysis should be completed for each project. NB If your construction is different from those specified, and / or to gain a comprehensive U−value calculation along with a condensation risk analysis of your project, please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

U–value Table Key

Inner Leaf Fair Faced Blockwork Density and λ–value (W/m.K) Dense (1.13)

0.34 0.28 0.25 0.22 0.21 0.20 0.18 0.17 0.17† 0.16 0.15

Medium (0.51)

0.35 0.32 0.27 0.24 0.21 0.20 0.20† 0.18 0.17 0.17†† 0.15 0.15

Lightweight (0.15)**

0.34 0.31 0.29 0.25 0.22 0.20 0.19 0.18 0.17 0.15 0.16† 0.15 0.14

* Calculations assume dense block outer leaf of λ–value (1.13 W/m.K). ** A 6.6% thermal bridging factor has been assumed for the effect of mortar joints. *** 150 mm applies to the UK and 225 mm to the Republic of Ireland. † U−values with a 40 mm cavity are 0.01 W/m.K lower (better) than those shown. †† U–values with a 40 mm cavity are 0.02 W/m.K lower (better) than those shown.

Where an is shown, the combination of insulation products may result in an interstitial condensation risk and so the calculations have been excluded.

Leaf* / 100 mm Block Inner Leaf Internal Finish – Kingspan Kooltherm® K17 Insulated Plasterboard

Internal Finish − 3mm Skim Coated 12.5 mm Plasterboard Residual cavity (see ‘Design Considerations’)

3 mm skim coated 12.5 mm plasterboard

Kingspan Kooltherm® K17 Insulated Plasterboard

Residual cavity (see ‘Design Considerations’)

Inner leaf blockwork

Double drip type wall tie and retaining clip (BBA Approved)

Kingspan Kooltherm® K8 Cavity Board

Flexible urethane sealant at junction Kingspan Kooltherm® K3 Floorboard

Kingspan Kooltherm® K3 Floorboard

Damp proof course

Insulation overlap min. 200 mm from bottom of wall insulation to top of floor insulation 10 mm polymer rendered 100 mm dense block outer leaf*

10 mm polymer rendered 100 mm dense block outer leaf*

Damp proof course

Figure 2

Figure 3 U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K8 Cavity Board

Insulant Thickness (mm) 20 25 30 35 40 50 60 70 75 80 90 100 110 120

Insulation overlap min. 300 mm for ECD compliance, otherwise 150 / 225**** mm from bottom of wall insulation to top of floor insulation upstand

U–values (W/m2.K) for Various Product Thicknesses of Kingspan Kooltherm® K17 Insulated Plasterboard** and Thicknesses of Kingspan Kooltherm® K8 Cavity Board

Inner Leaf Blockwork Density and λ–value (W/m.K) Dense (1.13)

0.34 0.31 0.26 0.23 0.21 0.20 0.19 0.18 0.16 0.16† 0.15

Medium (0.51)

Lightweight (0.15)**

0.35 0.32 0.30 0.26 0.23 0.20 0.19 0.19 0.17 0.16 0.16† 0.15

0.34 0.31 0.29 0.27 0.23 0.21 0.19 0.18 0.17 0.16 0.15 0.15† 0.14

Thickness of Kingspan Kooltherm® K8 Cavity Dense Board (mm (1.13)

Aerated (0.11)**

0.32 0.30 0.28 0.26 0.23 0.20 0.18 0.18 0.17 0.16 0.14 0.15†† 0.14

20 25 30 40 50 60 70 75 80

* Calculations assume dense block outer leaf of λ–value (1.13 W/m.K). ** A 6.6% thermal bridging factor has been assumed for the effect of mortar joints. † U−values with a 40 mm cavity are 0.01 W/m.K lower (better) than those shown. †† U–values with a 40 mm cavity are 0.02 W/m.K lower (better) than those shown.

45 50 60

0.27 0.26 0.23 0.20 0.18 0.17 0.16 0.15

0.16 0.15

Inner Leaf Blockwork Density and λ–value (W/m.K) Medium (0.51)

Light weight (0.15)***

37.5 mm Kingspan Kooltherm® K17 Insulated Plasterboard**

0.27 0.25 0.22 0.20 0.18 0.16 0.16 0.15

0.24 0.23 0.21 0.18 0.17 0.16 0.15 0.14

0.23 0.22 0.20 0.18 0.16 0.15 0.15 0.14

62.5 mm Kingspan Kooltherm® K17 Insulated Plasterboard**

0.16 0.15

0.15 0.14

0.14 0.13

* Calculations assume dense block outer leaf of λ–value (1.13 W/m.K). ** Product thickness = insulant thickness + 12.5 mm plasterboard. *** A 6.6% thermal bridging factor has assumed for the effect of mortar joints. **** 150 mm applies to the UK and 225 mm to the Republic of Ireland.

Aerated (0.11)***

Typical Constructions and U–values 102.5 mm Brick Outer Leaf / 100 mm Block Inner Leaf Internal Finish – Fair Faced Blockwork Residual cavity (see ‘Design Considerations’)

Internal Finish − 3 mm Skim Coated 12.5 mm Plasterboard Residual cavity (see ‘Design Considerations’)

Inner leaf fair faced blockwork Double drip type wall tie and retaining clip (BBA Approved)

Kingspan Kooltherm® K8 Cavity Board

3 mm skim coated 12.5 mm plasterboard Inner leaf blockwork Double drip type wall tie and retaining clip (BBA Approved)

Kingspan Kooltherm® K8 Cavity Board

Kingspan Kooltherm® K3 Floorboard

Kingspan Kooltherm® K3 Floorboard Insulation overlap min. 200 mm from bottom of wall insulation to top of floor insulation Insulation overlap min. 150 / 225** mm from bottom of wall insulation to top of floor insulation upstand

102.5 mm brick outer leaf

Figure 4

Figure 5 U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K8 Cavity Board

Insulant Thickness (mm) 25 30 35 40 50 60 70 75 80 90 100 110 120 125

Damp proof course

U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K8 Cavity Board

Inner Leaf Fair Faced Blockwork Density and λ–value (W/m.K) Dense (1.13)

0.34 0.28 0.25 0.22 0.21 0.20 0.19 0.17 0.17† 0.16 0.15

Medium (0.51)

Lightweight (0.15)*

0.33 0.27 0.24 0.22 0.20 0.20† 0.18 0.17 0.17† 0.16 0.15

0.34 0.31 0.29 0.25 0.22 0.20 0.19 0.18 0.17 0.16 0.16† 0.15 0.14

Insulant Thickness (mm)

20 25 30 35 40 50 60 70 75 80 90 100 110 120

* A 6.6% thermal bridging factor has assumed for the effect of mortar joints. ** 150 mm applies to the UK and 225 mm to the Republic of Ireland. † U−values with a 40 mm cavity are 0.01 W/m.K lower (better) than those shown.

Inner Leaf Blockwork Density and λ–value (W/m.K) Dense (1.13)

0.34 0.32 0.27 0.24 0.21 0.20 0.19 0.18 0.17 0.16† 0.15

Medium (0.51)

Lightweight (0.15)*

Aerated (0.11)*

0.33 0.31 0.26 0.23 0.21 0.20 0.19 0.18 0.16 0.16† 0.15

0.34 0.32 0.30 0.28 0.24 0.21 0.19 0.18 0.17 0.16 0.15 0.15† 0.14

0.33 0.30 0.28 0.26 0.23 0.20 0.19 0.18 0.17 0.16 0.15 0.15† 0.14

* A 6.6% thermal bridging factor has been assumed for the effect of mortar joints. † U−values with a 40 mm cavity are 0.01 W/m.K lower (better) than those shown.

Internal Finish − Kingspan Kooltherm® K17 Insulated Plasterboard

Linear thermal bridging describes the heat loss at junctions between elements, where the geometry of the junction means that a building's primary insulation layer is not continuous or is reduced. This heat loss is represented by the junction’s psi (ψ) value. The ψ–values of all the linear thermal bridges in a building are used to calculate an overall y–value which is used in whole building carbon dioxide emissions calculation software.

Kingspan Kooltherm® K17 Insulated Plasterboard

Residual cavity (see ‘Design Considerations’)

Inner leaf blockwork Double drip type wall tie and retaining clip (BBA Approved)

Kingspan Kooltherm® K8 Cavity Board

Flexible urethane sealant at junction Kingspan Kooltherm® K3 Floorboard

In a standard cavity wall–to–ground floor junction the linear thermal bridge is the inner leaf of masonry. This linear thermal bridge can be reduced by increasing the distance that the heat has to travel through the inner leaf of masonry. This can be achieved by means of overlapping the partial fill cavity wall insulation and the floor insulation. The key factor is the distance between the bottom of the cavity wall insulation and the top of the floor insulation (including any perimeter insulation upstand).

Damp proof course Insulation overlap min. 300 mm for ECD compliance, otherwise 150 / 225*** mm from bottom of wall insulation to top of floor insulation upstand

102.5 mm brick outer leaf

Figure 6

Accredited Construction Details (England & Wales / Scotland / Northern Ireland) and Acceptable Construction Details (Republic of Ireland), collectively referred to here as ACDs, feature masonry cavity wall / floor junction constructions with a ψ–value of 0.16 W/m.K, where the distance between the top of the perimeter floor insulation upstand and the bottom of the partial fill cavity wall insulation is a minimum of 150 / 225* mm for a concrete floor (see Figures 1 & 4) and 200 mm for a suspended timber floor (see Figures 2 & 5).

U–values (W/m2.K) for Various Product Thicknesses of Kingspan Kooltherm® K17 Insulated Plasterboard* and Thicknesses of Kingspan Kooltherm® K8 Cavity Board Thickness of Kingspan Kooltherm® K8 Cavity Dense Board (mm (1.13)

20 25 30 40 50 60 70 75 80 85 90

45 50 60

0.28 0.26 0.23 0.20 0.18 0.17 0.16 0.16 0.15 0.14

0.16 0.15

Inner Leaf Blockwork Density and λ–value (W/m.K) Medium (0.51)

Lightweight (0.15)**

Aerated (0.11)**

37.5 mm Kingspan Kooltherm® K17 Insulated Plasterboard*

0.27 0.25 0.22 0.20 0.18 0.17 0.16 0.15 0.15 0.14

0.24 0.23 0.21 0.18 0.17 0.16 0.15 0.14 0.14 0.13

0.23 0.22 0.20 0.18 0.16 0.15 0.15 0.14 0.14 0.13

62.5 mm Kingspan Kooltherm® K17 Insulated Plasterboard*

0.16 0.15

0.15 0.14

Linear Thermal Bridging at Wall to Floor Junctions

Adhering to these constructions, entitles a designer to use a default ψ–value in whole building carbon dioxide emissions calculation software. * 150 mm applies to the UK and 225 mm to the Republic of Ireland.

* Product thickness = insulant thickness + 12.5 mm plasterboard. ** A 6.6% thermal bridging factor has assumed for the effect of mortar joints. *** 150 mm applies to the UK and 225 mm to the Republic of Ireland.

Design Considerations Environmental Impact & Responsible Sourcing Green Guide Rating An Ecoprofile, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, has been created for Kingspan Kooltherm® K8 Cavity Board produced at Kingspan Insulation’s Pembridge manufacturing facility. The BRE has assigned the product a 2008 Green Guide Summary Rating of A+.

This linear thermal bridge can be further reduced by isolating the inner leaf of masonry from the internal conditioned space. This can be achieved by lining the inner leaf of masonry with insulation, which is installed so that there is continuity between it and the floor insulation. Enhanced Construction Details (ECDs) improve on the performance offered by ACDs. ECDs were developed in order to meet the needs of building designers who wish to exceed the performance standards required by Building Regulations / Standards with particular emphasis on the Code for Sustainable Homes. ECDs feature masonry cavity wall / floor junction constructions with ψ–values as low as 0.029 W/m.K, where the partial fill cavity wall is additionally lined with a layer of insulated plasterboard (see Figures 3 & 6), and the distance between the top of the perimeter floor insulation upstand and the bottom of the partial fill cavity wall insulation is increased to 300 mm for both concrete and suspended timber floor constructions.

Environmental Profiles Scheme Certificate Number ENP 410

Responsible Sourcing Kingspan Kooltherm® K8 Cavity Board produced at Kingspan Insulation’s Pembridge and Castleblayney manufacturing facilities is manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer component of the product produced at these facilities is also manufactured under a management system certified to BS EN ISO 14001: 2004.

Linear Thermal Bridging at Openings Prevention of thermal bridging should be considered when designing sills, jambs and lintels. An insulated cavity closer e.g. Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer PLUS is available from Kingspan Insulation. Please refer to the literature for these products for further information. This literature is available from the Kingspan Insulation Marketing Department or via the Kingspan Insulation website (see rear cover for details).

NB The above information is correct at the time of writing. Please confirm at the point of need by contacting Kingspan Insulation’s Technical Services Department (see rear cover), from which copies of Kingspan Insulation and its suppliers’ ISO 14001 certificates can be obtained along with confirmation of Kingspan Insulation's products' Green Guide ratings.

Sustainability & Responsibility

Residual Cavity Width

UK A minimum 25 mm residual cavity width is recommended between the insulation and the outer leaf for wall heights up to 12 metres. A minimum 50 mm residual cavity width is recommended for wall heights greater than 12 metres and up to and including 25 metres. For further details please refer to current BBA Certificate 94/3047.

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

The NHBC and / or Zurich Building Insurance Technical Standards normally require a minimum 50 mm residual cavity width in areas of severe exposure to wind driven rain (exposure zone 3) and a minimum 75 mm residual cavity width in areas of very severe exposure to wind driven rain (exposure zone 4), where nominal standards of tolerance and workmanship are accepted. The NHBC and / or Zurich Building Insurance Technical Standards are able to accept a 50 mm residual cavity width for Kingspan Kooltherm® K8 Cavity Board in all exposure zones including areas of very severe exposure to wind driven rain (exposure zone 4) where the outer leaf is fair faced masonry with tool flush joints.

Specification Clause Kingspan Kooltherm® K8 Cavity Board should be described in specifications as:– The cavity wall insulation shall be Kingspan Kooltherm® K8 Cavity Board____ mm thick: comprising a premium performance rigid thermoset insulation core faced on both sides with a low emissivity composite foil facing. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them.

Ireland A minimum 40 mm residual cavity width is recommended for all wall heights. For further details please refer to current NSAI Agrément Certificate 03/0196.

NBS Specifications

Wall Ties

NBS users should refer to clause(s): F30 155 (Standard and Intermediate) F30 12 (Minor works)

Wall ties should have a retaining clip for securing the insulant to the masonry plane and be of a double drip type. Ideally they should be BBA / NSAI approved and conform to BS / I.S. EN 845–1: 2003 (Specification for ancillary components for masonry. Ties, tension straps, hangers and brackets). In severe / very severe exposure zones, only stainless steel or copper alloy wall ties should be used as referred to in BS 5628–3: 2001 (Code of practice for use of masonry. Materials and components, design and workmanship).

Design Standards BS / I.S. EN 1996–1–1:2005 (Eurocode 6. Design of masonry structures. Common rules for reinforced and unreinforced masonry structures), BS 5628–1: 2005 (Code of practice for use of masonry. Structural use of unreinforced masonry) and BS 5628–2: 2005 (Code of practice for use of masonry. Structural use of reinforced and prestressed masonry) should be consulted regarding the construction of insulated cavity walls.

Lightning Protection Building designers should give consideration to the requirements of BS / I.S. EN 62305: 2006 (Protection against lightning).

Sitework Fixing details G Kingspan Kooltherm® K8 Cavity Board is normally held

in position by the wall ties used to tie the two skins of masonry together. G Wall ties should include a retaining disc / clip and be of the

double drip type, installed drip downward. G For a solid concrete ground floor the first row of wall ties

are installed in the inner leaf at 600 mm horizontal centres a minimum of one course of blockwork below the damp proof course or 150 mm below the top surface of the ground floor perimeter insulation upstand (see ‘Linear Thermal Bridging at the Wall to Floor Junctions’ above), whichever is the lower. G For a suspended timber floor the first row of wall ties are

installed in the inner leaf at 600 mm horizontal centres a minimum of 200 mm below the top surface of the ground floor perimeter insulation upstand (see ‘Linear Thermal Bridging at the Wall to Floor Junctions’ above).

Figure 7 – Use of a Cavity Board to Protect the Cavity and Insulation Board Top Edge

G Continue constructing the inner leaf up to the next wall tie

course (450 mm above the first – usually 2 block courses). G The next course of wall ties is positioned at the usual

900 mm horizontal centres in the UK and 750 mm horizontal centres in Ireland. G The next course of blockwork is installed to secure the ties. G The first row of insulation boards should now be installed

between the two rows of wall ties, ensuring each insulation board is retained tight against the inner leaf and joints are lightly butted. G Each board should be secured at a minimum of three

points. Additional ties may also be required to satisfy the structural requirements of BS 5628–3: 2001 and / or to ensure adequate retention of boards or cut pieces.

Figure 8 – Use of a Cavity Batten to Protect the Cavity

G The outer leaf is then built up to the level of the top of the

boards and the process is repeated. G When insulating a gable, insulation boards should be

continued 250 mm beyond the height of the top storey ceiling and a cavity tray installed above the insulation.

Excess Mortar G After raising each section of inner leaf, before installation of

the insulation board, excess mortar should be removed and mortar droppings cleaned from exposed edges of the installed installation boards. G Use of a cavity batten or cavity board is recommended to

protect board edges and maintain a clear cavity (see Figures 7 & 8 or refer to BBA Certificate 94/3047 or NSAI Agrément Certificate 09/0329).

Product Details General

The Facings

Cutting G Cutting should be carried out either by using a fine toothed saw, or by scoring with a sharp knife, snapping the board over a straight edge and then cutting the facing on the other side.

Kingspan Kooltherm® K8 Cavity Board is faced on both sides with a low emissivity composite foil, autohesively bonded to the insulation core during manufacture. This reflective, low emissivity surface improves the thermal resistance of any unventilated cavity adjacent to the board.

G Ensure accurate trimming to achieve close butting joints

The Core

and continuity of insulation.

The core of Kingspan Kooltherm® K8 Cavity Board is a premium performance rigid thermoset modified resin insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Daily Working Practice G At the completion of each day’s work, or whenever work is interrupted for extended periods of time, board edges and joints should be protected from inclement weather. Availability G Kingspan Kooltherm® K8 Cavity Board is available through specialist insulation distributors and selected builders’ merchants throughout the UK and Ireland.

Standards and Approvals Kingspan Kooltherm® K8 Cavity Board is manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

Packaging and Storage

G The polyethylene packaging of Kingspan Insulation

products, which is recyclable, should not be considered adequate for outdoor protection. G Ideally, boards should be stored inside a building.

The use of Kingspan Kooltherm® K8 Cavity Board, produced at Kingspan Insulation’s Pembridge manufacturing facility, is covered by BBA Certificate 94/3047, and that produced at Kingspan Insulation’s Castleblayney manufacturing facility by NSAI Agrément Certificate 09/0329.

Health and Safety G Kingspan Insulation products are chemically inert and safe to use. G A Safety Information Data Sheet for this product is

available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety.

Standard Dimensions Kingspan Kooltherm® K8 Cavity Board is available in the following standard size(s):

Nominal Dimension Length Width Insulant Thickness

The reflective facings used on this product can be slippery when wet. Therefore, it is recommended that any excess material should be contained to avoid a slip hazard. Warning – do not stand on or otherwise support your weight on this product unless it is fully supported by a load bearing surface.

Availability (m) (m) (mm)

1.2 0.45 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Product Details Compressive Strength

Fire Performance

The compressive strength of Kingspan Kooltherm® K8 Cavity Board typically exceeds 100 kPa at 10% compression, when tested to BS / I.S. EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

Kingspan Kooltherm® K8 Cavity Board is Class 1, as defined by BS 476–7: 1997 (Fire tests on building materials and structures. Method of test to determine the classification of the surface spread of flame of products). The rigid thermoset insulation core of Kingspan Kooltherm® K8 Cavity Board is Class 0, as defined by the Building Regulations.

The rigid thermoset insulation core of Kingspan Kooltherm® K8 Cavity Board, when subjected to the British Standard fire test specified in the table below, has achieved the result shown.

Durability

Test

Result

BS 5111–1: 1974 (Smoke Obscuration)

< 5% (Negligible smoke obscuration)

Kingspan Kooltherm® K8 Cavity Board will not prejudice the fire resistance properties of a wall in which it is installed. It is unlikely to become ignited within the cavity. If fire does penetrate into an unventilated cavity, the amount of air present will be insufficient to support combustion, and flame spread will be minimal.

If correctly installed, Kingspan Kooltherm K8 Cavity Board can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use. ®

Resistance to Solvents, Fungi & Rodents The insulation core is resistant to short–term contact with petrol and with most dilute acids, alkalis and mineral oils. However, it is recommended that any spills be cleaned off fully before the boards are installed. Ensure that safe methods of cleaning are used, as recommended by suppliers of the spilt liquid. The insulation core is not resistant to some solvent–based adhesive systems, particularly those containing methyl ethyl ketone. Adhesives containing such solvents should not be used in association with this product. Damaged boards or boards that have been in contact with harsh solvents or acids should not be used.

Further details of the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

The insulation core and facings used in the manufacture of Kingspan Kooltherm® K8 Cavity Board resist attack by mould and microbial growth and do not provide any food value to vermin.

Kingspan Insulation Insulation Product Benefits

Thermal Properties The λ–values and R–values detailed below are quoted in accordance with BS / I.S. EN 13166: 2008 (Thermal insulation products for buildings – Factory made products of phenolic foam (PF) – Specification).

specific U–value.

G Rigid thermoset insulation core is Class 0, as defined

by the Building Regulations in England, Wales & Ireland, and Low Risk, as defined by the Building Standards in Scotland. G Rigid thermoset insulation core achieves the best possible

Thermal Resistance (m2.K/W)

20 25 30 35 40 45 50 60 70 75 80 90 100 110 120 125

0.85 1.15 1.40 1.65 1.90 2.25 2.50 3.00 3.50 3.75 4.00 4.50 5.00 5.50 6.00 6.25

rating of < 5% smoke obscuration when tested to BS 5111: Part 1: 1974. G Manufactured with a blowing agent that has zero Ozone

Depletion Potential (ODP) and low Global Warming Potential (GWP). Kingspan Therma™ Range Products G With a thermal conductivity of 0.022–0.027 W/m.K these are amongst the more thermally efficient insulation products commonly used. G Each product achieves the required fire performance for its

intended application. G Manufactured with a blowing agent that has zero Ozone

Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

G Each product achieves the required fire performance for its

intended application. G Manufactured with a blowing agent that has zero Ozone

experienced with mineral fibre and which can reduce thermal performance. G Safe and easy to install – non–fibrous. G If installed correctly, can provide reliable long term thermal

performance over the lifetime of the building.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 384 – Fax: +44 (0) 1544 387 484 – email: literature@kingspaninsulation.co.uk – www.kingspaninsulation.co.uk/literature

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie – www.kingspaninsulation.ie/literature

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd is a member of: The National Insulation Association (NIA)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Kingspan, Kooltherm, Styrozone, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK, Ireland and other countries. All rights reserved. ™ Therma is a Trademark of the Kingspan Group plc. Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456. Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Insulation CI/Sfb

(27.9)

Rn7

Ninth Issue

March 2011

K12 Framing Board INSULATION FOR TIMBER AND STEEL FRAMING SYSTEMS

Premium performance rigid thermoset insulation – thermal conductivities as low as 0.020 W/m.K

Class 0 fire rated insulation core

Negligible smoke obscuration

G G

G G G G G G

Can be used between studs or as an insulating sheathing Suitable for use with timber frame and steel frame wall construction Unaffected by air infiltration Resistant to the passage of water vapour Easy to handle and install Ideal for new build or refurbishment Non−deleterious material Manufactured with a blowing agent that has zero ODP and low GWP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

Refurbishment – Internal Dry Lining

The U−values in the tables that follow have been calculated, under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U-value and Condensation Risk Calculations, using the method detailed in BS / I.S. EN ISO 6946: 2007 (Building components and building elements. Thermal resistance and thermal transmittance. Calculation method), and using the conventions set out in BR443 (Conventions for U−value calculations). They are valid for the constructions shown in the details immediately above each table.

Insulation Between, and Insulated Plasterboard Fixed to, Timber Framework on Solid Brick Wall 25 mm (min.) air space

Damp proof course

Brickwork

Timber stop batten

Kingspan Kooltherm® K12 Framing Board

Timber battens

Unless otherwise stated both the timber and steel frame U– values quoted are based on an internal construction comprising a 3 mm plaster skim on 15 mm plasterboard. The external finishes are as specified in the examples themselves.

3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard*/**

Figure 1

NB When calculating U–values to BS / I.S. EN ISO 6946: 2007, the type of mechanical fixing used may change the thickness of insulation required. The effect of fixings for Kingspan Kooltherm® K18 Insulated Plasterboard has been ignored in these calculations, as the insulation layer penetrated is not the main insulation layer. For the purposes of timber frame calculations which feature insulating sheathing, the use of stainless steel fasteners of cross sectional area 7.45 mm2 has been assumed at a density of 4.4 per m2. For steel frame calculations featuring insulating sheathing, the use of carbon steel fasteners of cross sectional area 14.8 mm2 has been assumed at a density of 4.5 per m2.

U–values (W/m2.K) for Various Thicknesses of Insulation, Timber Depths, and Brickwork Thicknesses Thickness Product Thickness of Kingspan of Kingspan Kooltherm® Kooltherm® K12 Framing K18 Insulated Board Plasterboard*** Between Fixed to Timbers (mm) Timbers (mm)

NB For calculations which feature insulation between timber frame studs / timber battens, a 15% bridging factor has been assumed. The thermal conductivity of the timber has been assumed to be 0.12 W/m.K. NB Calculations assume that a foil faced breathable membrane yields an airspace thermal resistance of 0.54 m2.K/W. Calculations assume that a 4 mm foil faced bubble breathable membrane yields a combined product and airspace thermal resistance of 0.79 m2.K/W. NB For the purposes of these calculations the standard of workmanship has been assumed good, and therefore the correction factor for air gaps has been ignored.

50 50 50 50 50 50 50

U–value Table Key Where an symbol is shown, the U−value is higher than the worst of the maximum new build area weighted average / refurbishment (as applicable) U−values allowed by the 2010 Editions of Approved Documents L to the Building Regulations (England & Wales), the 2010 Editions of Technical Handbooks Section 6 (Scotland), the 2006 Editions of Technical Booklets F (Northern Ireland), or the 2008 Editions of Technical Guidance Documents L* (Republic of Ireland).

70 75 75 75 75 75 75 75 75 *

Brickwork Thickness (mm) 102.5

75 mm Deep Timbers 0* 32.5 0.29 37.5 0.27 42.5 0.25 52.5 0.22 62.5 0.20 67.5 100 mm Deep Timbers 0* 0* 32.5 0.24 37.5 0.22 42.5 0.21 52.5 0.19 62.5 0.17 72.5 0.15 77.5

215

0.28 0.26 0.24 0.21 0.19

0.30 0.23 0.21 0.20 0.18 0.16 0.15

Calculations which feature insulation between studwork only, assume the use of 15 mm plasterboard and a polythene sheet vapour control layer in order to minimise the risk of condensation (see ‘Design Considerations – Water Vapour Control’). ** Kingspan Kooltherm® K18 Insulated Plasterboard contains an integral vapour control layer in order to minimise the risk of condensation (see ‘Design Considerations – Water Vapour Control’). *** Product thicknesses = insulant thickness + 12.5 mm plasterboard.

* Excluding Change of Use and Material Alterations.

Where an is shown, the combination of insulation products may result in an interstitial condensation risk and so the calculations have been excluded.

Timber Frame Wall with 102.5 mm Brickwork Outer Leaf Insulation Between Timber Frame Studs and Insulated Sheathing

Insulation Between Timber Frame Studs with Kingspan Kooltherm® K18 Insulated Plasterboard Fixed Internally Timber stop batten

Kingspan Kooltherm® K12 Framing Board

Timber stop batten

Kingspan Kooltherm® K18 Insulated Plasterboard*/**

3 mm skim coated 15 mm plasterboard

Kingspan Kooltherm® K12 Framing Board

Vapour control layer

Timber studwork Breathable membrane e.g. Kingspan nilvent ® Breathable membrane e.g. Kingspan nilvent ® Damp proof membrane

Timber studwork OSB or plywood sheathing

OSB or plywood sheathing Wall tie with retaining clip

Timber frame wall tie

Figure 3

Figure 2 U–values (W/m2.K) for Various Thicknesses of Insulation, Stud Depths, and Breathable Membranes

U–values for Various Thicknesses of Insulation and Stud Depths

Thickness Product Thickness of Kingspan of Kingspan Breathable Kooltherm® Kooltherm® Membrane Type K12 Framing K18 Insulated Board Plasterboard*** Foil Between Inside Foil Faced Studs (mm) Studs (mm) Standard Faced Bubble

25 30 35 40 45 50 60 70 70 70 70 70 70 70 25 30 35 40 45 50 60 70 75 80 90 100 110 120 120 120 120

Damp proof membrane

89 mm Deep Timber Studs 0* 0* 0* 0* 0* 0* 0.35 0* 0.32 0* 0.30 32.5 0.23 37.5 0.22 42.5 0.20 52.5 0.18 62.5 0.17 72.5 0.15 140 mm Deep Timber Studs 0* 0* 0* 0* 0* 0.35 0* 0.33 0* 0.30 0* 0.28 0* 0.27 0* 0.26 0* 0.24 0* 0.23 0* 0.22 0* 0.22 32.5 0.17 37.5 0.16 42.5 0.15

0.35 0.32 0.31 0.29 0.27 0.21 0.20 0.19 0.17 0.16 0.14

0.35 0.33 0.31 0.30 0.27 0.25 0.24 0.24 0.22 0.21 0.20 0.20 0.16 0.15 0.15

Thickness of Kingspan Kooltherm® K12 Framing Board (mm)

U–values (W/m2.K)

89 mm Deep Timber Studs 20 + 20 20 + 25* 25 + 25 30 + 30 40 + 40 50 + 50 60 + 60

0.35 0.33 0.32 0.30 0.29 0.27 0.25 0.20 0.19 0.18 0.17 0.15 0.14

20 + 20 25 + 25 30 + 30 40 + 40 50 + 50 60 + 60

0.28 0.26 0.24 0.20 0.17 0.15 140 mm Deep Timber Studs 0.30 0.26 0.24 0.20 0.17 0.15

* First thickness refers to the insulation between studs, second thickness to the sheathing. The thermal resistance of the sheathing must be ≥ that of the insulation between the studs in order to avoid condensation.

0.34 0.32 0.31 0.29 0.28 0.25 0.24 0.23 0.22 0.21 0.20 0.19 0.19 0.15 0.15 0.14

* Calculations which feature insulation between studwork only, assume the use of 15 mm plasterboard and a polythene sheet vapour control layer in order to minimise the risk of condensation (see ‘Design Considerations − Water Vapour Control’). ** Kingspan Kooltherm® K18 Insulated Plasterboard contains an integral vapour control layer (see ‘Design Considerations – Water Vapour Control’). *** Product thicknesses = insulant thickness + 12.5 mm plasterboard.

Typical Constructions and U–values Timber Frame Wall with 10 mm Polymer Rendered 100 mm Dense Blockwork Outer Leaf* Insulation Between Timber Frame Studs and Insulated Sheathing

Insulation Between Timber Frame Studs with Kingspan Kooltherm® K18 Insulated Plasterboard Fixed Internally OSB or plywood sheathing

Timber stop batten

Breathable membrane e.g. Kingspan nilvent ®

Kingspan Kooltherm® K18 Insulated Plasterboard**/***

Timber stop batten

3 mm skim coated 15 mm plasterboard Vapour control layer

Timber studwork Kingspan Kooltherm® K12 Framing Board

Kingspan Kooltherm® K12 Framing Board Breathable membrane e.g. Kingspan nilvent ®

Timber studwork OSB or plywood sheathing Wall tie with retaining clip

Timber frame wall tie

100 mm blockwork* with 10 mm polymer render

Damp proof membrane

Figure 4

Figure 5

U–values (W/m2.K) for Various Thicknesses of Insulation, Stud Depths, and Breathable Membranes

U–values for Various Thicknesses of Insulation and Stud Depths

25 30 35 40 45 50 60 70 70 70 70 70 70 70 20 25 30 35 40 45 50 60 70 75 80 90 100 110 120 120 120 120

89 mm Deep Timber Studs 0** 0** 0** 0** 0** 0** 0.35 0** 0.32 0** 0.30 32.5 0.23 37.5 0.21 42.5 0.20 52.5 0.18 62.5 0.16 72.5 0.15 140 mm Deep Timber Studs 0** 0** 0** 0** 0** 0** 0.35 0** 0.33 0** 0.30 0** 0.28 0** 0.27 0** 0.26 0** 0.24 0** 0.23 0** 0.22 0** 0.21 32.5 0.17 37.5 0.16 42.5 0.15

0.34 0.32 0.31 0.28 0.27 0.21 0.20 0.19 0.17 0.16 0.14

0.34 0.33 0.31 0.29 0.27 0.25 0.24 0.23 0.22 0.21 0.20 0.20 0.16 0.15 0.14

Thickness of Kingspan Kooltherm® K12 Framing Board (mm)

20 + 20 25 + 25 30 + 30 40 + 40 50 + 50 60 + 60

0.34 0.33 0.31 0.29 0.28 0.26 0.25 0.20 0.19 0.18 0.16 0.15 0.14

20 + 20 25 + 25 30 + 30 40 + 40 50 + 50 60 + 60

U–values (W/m2.K)

89 mm Deep Timber Studs 0.30 0.26 0.24 0.20 0.17 0.15 140 mm Deep Timber Frame Studs 0.30 0.26 0.23 0.20 0.16 0.14

* Calculations assume dense block of λ–value 1.13 W/m.K.

0.35 0.33 0.32 0.30 0.28 0.27 0.25 0.23 0.23 0.22 0.21 0.20 0.19 0.19 0.15 0.14 0.14

Calculations assume dense block of λ–value 1.13 W/m.K.

** Calculations which feature insulation between studwork only, assume the use of 15 mm plasterboard and a polythene sheet vapour control layer in order to minimise the risk of condensation (see ‘Design Considerations − Water Vapour Control’). *** Kingspan Kooltherm® K18 Insulated Plasterboard contains an integral vapour control layer (see ‘Design Considerations – Water Vapour Control’). **** Product thicknesses = insulant thickness + 12.5 mm plasterboard.

Timber Frame Wall with Ventilated Cladding Insulation Between Timber Frame Studs and Insulated Sheathing

Insulation Between Timber Frame Studs with Kingspan Kooltherm® K18 Insulated Plasterboard Fixed Internally Ventilated cladding e.g. timber cladding / 10 mm polymer rendered calcium silicate board / tiles on vertical battens

Ventilated cladding e.g. timber cladding / 10 mm polymer rendered calcium silicate board / tiles on vertical battens

Kingspan Kooltherm® K18 Insulated Plasterboard*/**

Timber stop batten

Kingspan Kooltherm® K12 Framing Board

Timber stop batten

3 mm skim coated 15 mm plasterboard Vapour control layer

Breathable sarking membrane e.g. Kingspan nilvent ®

Pre−fitted breathable sarking membrane e.g. Kingspan nilvent ®

Timber studwork

OSB or plywood sheathing

Breathable sarking membrane e.g. Kingspan nilvent ® required on outside of sheathing with ventilated cladding systems

Damp proof membrane

Figure 6

OSB or plywood sheathing

Damp proof membrane

Figure 7 U–values for Various Thicknesses of Insulation, Stud Depths, and Breathable Membranes

Thickness Product Thickness of Kingspan of Kingspan Kooltherm® K12 Kooltherm® K18 Framing Board Plasterboard*** (mm) (mm)

55 60 65 70 70 70 70 70 70 70 70 50 55 60 70 75 80 90 100 110 120 120 120 120 120

U–values for Various Thicknesses of Insulation and Stud Depths Thickness of Kingspan Kooltherm® K12 Framing Board (mm)

U–values (W/m2.K)

89 mm Deep Timber Studs 0* 0* 0.35 0* 0.34 0* 0.32 32.5 0.25 37.5 0.23 42.5 0.21 52.5 0.19 62.5 0.17 72.5 0.16 82.5 0.15 140 mm Deep Timber Studs 0* 0* 0.34 0* 0.33 0* 0.30 0* 0.29 0* 0.28 0* 0.26 0* 0.25 0* 0.24 0* 0.23 32.5 0.18 37.5 0.17 42.5 0.16 52.5 0.15

U–values (W/m2.K)

89 mm Deep Timber Studs 20 + 20 20 + 25* 25 + 25 30 + 30 40 + 40 50 + 50 60 + 60 70 + 70 20 + 20 20 + 25* 25 + 25 30 + 30 40 + 40 50 + 50 60 + 60 70 + 70

0.34 0.32 0.29 0.23 0.19 0.17 0.15 140 mm Deep Timber Studs

0.34 0.32 0.28 0.23 0.19 0.16 0.14

Typical Constructions and U–values Insulated Sheathing Insulated Sheathing on Steel Frame

Insulated Sheathing on Timber Frame Steel studwork Breathable membrane e.g. Kingspan nilvent ®

Timber studwork

3 mm skim coated 15 mm plasterboard

3 mm skim coated 15 mm plasterboard Kingspan Kooltherm® K12 Framing Board

Steel frame wall tie

Wall ties with retaining clip

Kingspan Kooltherm® K12 Framing Board

Damp proof membrane

100 mm blockwork* with 10 mm polymer render

Figure 8

Damp proof membrane

Figure 9

U–values (W/m2.K) for Various Thicknesses of Insulation, Stud Depths, and External Masonry Types Thickness of Kingspan Kooltherm® K12 Framing Board (mm)

External Masonry 102.5 mm Brickwork

Rendered 100 mm Medium Dense Block*

100 mm Deep Steel Frame at 600 centres 25 30 35 40 50 60 70 75 80 90 100 110 120 25 30 40 50 60 70 75 80 90 100 110 120

25 30 35 40 50 60 70 75 80 90 100 110

0.34 0.33 0.32 0.31 0.30 0.27 0.26 0.24 0.23 0.22 0.21 0.21 0.20 0.20 0.19 0.18 0.18 0.17 0.16 0.16 0.15 0.15 0.14 150 mm Deep Steel Frame at 600 centres

0.35 0.31 0.27 0.24 0.22 0.21 0.20 0.18 0.17 0.16 0.15

0.34 0.30 0.26 0.23 0.21 0.20 0.19 0.18 0.16 0.15 0.14

102.5 mm Brickwork

Rendered 100 mm Medium Dense Block*

89 mm Deep Timber Studs

External Masonry

25 30 35 40 50 60 70 75 80 90 100 110

0.33 0.31 0.26 0.23 0.21 0.20 0.19 0.17 0.16 0.15 140 mm Deep Timber Studs

0.33 0.30 0.26 0.23 0.20 0.19 0.19 0.17 0.16 0.14

0.34 0.31 0.29 0.25 0.22 0.20 0.19 0.18 0.17 0.15 0.14

* Calculations assume medium dense block of λ–value 0.51 W/m.K, with 10 mm polymer render.

Design Considerations Environmental Impact & Responsible Sourcing

NBS Specifications

Green Guide Rating An Ecoprofile, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, has been created for Kingspan Kooltherm® K12 Framing Board produced at Kingspan Insulation’s Pembridge manufacturing facility. The BRE has assigned the product a 2008 Green Guide Summary Rating of A+.

Details also available in NBS Plus. NBS users should refer to clause(s): F30 155, P10 210, K11 495 (Standard and Intermediate) F30 12, P10 40 (Minor works)

Repeating Thermal Bridges When insulation is installed between timber studwork, the effects of repeating thermal bridges, caused by the studwork and noggins, must be taken into account. In most cases, this can represent up to or over 15% of the internal surface area of the building, which will significantly affect the overall U–value. This problem can be avoided by installing an additional layer of insulation either outside, or inside, the studwork.

Environmental Profiles Scheme Certificate Number ENP 410

Responsible Sourcing Kingspan Kooltherm® K12 Framing Board produced at Kingspan Insulation's Pembridge and Castleblayney manufacturing facilities is manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer component of the product produced at these facilities is also manufactured under a management system certified to BS EN ISO 14001: 2004.

Water Vapour Control / Condensation Consideration should be given to the risk of condensation, when designing thermal elements. Condensation can be controlled, in constructions containing Kingspan Kooltherm® K12 Framing Board, by ensuring there is a layer of high vapour resistance on the warm side of the insulation layer. If required, the vapour resistance of the wall lining can be increased by the use of a vapour check plasterboard*, the use of Kingspan Kooltherm® K18 Insulated Plasterboard which contains an integral vapour control layer*, the use of a layer of polythene sheeting*, or by the application of two coats of Gyproc Drywall Sealer.

* With appropriate detailing at joints, penetrations and wall perimeters.

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

Fire Stops Specification Clause

Current Building Regulations / Standards should be considered with regard to the requirements for, and provision of, fire stops.

Kingspan Kooltherm K12 Framing Board should be described in specifications as:– ®

Lightning Protection

The stud wall insulation shall be Kingspan Kooltherm® K12 Framing Board____ mm thick: comprising a premium performance rigid thermoset insulation core faced on both sides with a low emissivity composite foil facing. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them.

Building designers should give consideration to the requirements of BS / I.S. EN 62305: 2006 (Protection against lightning).

Sitework Introduction G Installation advice, for different applications of Kingspan

Timber Frame Wall with Insulating Sheathing G Kingspan Kooltherm® K12 Framing Board should be fixed to the external surface of the timber frame structure (outside of any breathable membrane, OSB or plywood sheathing), and restrained in accordance with the timber frame manufacturers recommendations. However, in the absence of other guidance please note the following.

Kooltherm® K12 Framing Board, is listed below. Where constructions include a combination of applications, e.g. ‘Insulation Between Timber Frame Studs and Insulated Sheathing’, refer to both relevant sections. Regardless of whether insulation is being installed between and outside, or between and inside timber studs, the two layers should always be fixed so that there are no air spaces between them in construction.

G Ensure that the boards are lightly butted and continuity of

insulation is maintained. G Large headed galvanised clout nails may be used as

External Masonry Timber Frame Wall with Insulation Between Studs G If insulation boards are to be fitted so that they are flush with the inside surface of the timber studs, nail treated softwood battens to the side of the studs, to provide a ‘stop’ to prevent the insulation boards from moving within the stud cavity.

temporary fixings prior to the insulation boards being tied into the masonry leaf with an appropriate timber frame wall tie. G Always ensure that fixings are coincident with the

underlying timber studs, head rails and sole plates. G The outer leaf of masonry may be constructed in the

G This ‘stop’ should be positioned to allow the insulation

conventional manner, using appropriate wall ties to hold the two wall leaves together.

boards to finish flush with the inside surface of the studs.

G Insulation boards may be temporarily held to the ‘stop’

battens with large headed clout nails.

Timber Frame Wall Tie Manufacturers Ancon Building Products +44 (0) 114 275 5224 www.ancon.co.uk

G The boards will be further restrained by the plasterboard /

insulated plasterboard lining, fixed to the inside face of the studs.

G If the insulation boards are to be fitted so that they are

flush with the outside surface of the timber studs, tight up against the pre–installed OSB or plywood sheathing, insulation boards must be cut and fitted in the spaces between the studs.

G Once the boards are fitted in place, nail treated softwood

battens to the side of the studs, to provide a ‘stop’ to prevent the insulation boards from moving within the stud cavity.

G When utilising Kingspan Kooltherm® K12 Framing Board

between studwork with no insulated sheathing, a vapour control layer should be installed. This can be provided by vapour check plasterboard*, Kingspan Kooltherm® K18 Insulated Plasterboard*, the use of a layer of polythene sheeting*, or by the application of two coats of Gyproc Drywall Sealer.

Cullen www.cullen−bp.co.uk

+44 (0) 1592 771132

Helifix Limited www.helifix.co.uk

+44 (0) 20 8735 5222

MAK Fasteners www.makfasteners.com

+353 (0) 1 451 99 00

Simpsons www.strongtie.co.uk

+44 (0) 1827 255600

Tech Fasteners www.techfasteners.ie

+353 (0) 1 457 33 00

Steel Frame Wall with Insulating Sheathing G Kingspan Kooltherm® K12 Framing Board should be fixed to the outside of the steel frame construction, ensuring vertical board joints coincide with a vertical steelwork member.

* With appropriate detailing at joints, penetrations and wall perimeters.

G In all cases, measure the distance between studs

G Fixings should be in accordance with the steel frame

before cutting Kingspan Kooltherm® K12 Framing Board to size, as spacings can vary.

manufacturer’s recommendations. G Ensure that the boards are lightly butted and continuity of

G Ensure there is a tight fit between the boards and the

insulation is maintained.

adjoining studs and other timbers, and fill all gaps with expanding urethane sealant.

G Advice should be sought from the appropriate steel frame

G Ensure that the boards are lightly butted, and continuity of

manufacturer, for recommendations on suitable wall tie specification. In the absence of any other guidance refer to:

insulation is maintained.

G The outer leaf of masonry may be constructed in the

Ancon Building Products www.ancon.co.uk

conventional manner, using appropriate wall ties to hold the two wall leaves together. 8

+44 (0) 114 275 5224

Ventilated Cladding G Alternatively, timber cladding can be fixed directly to the

Timber Frame Wall with Insulation Between Studs G If insulation boards are to be fitted so that they are flush with the inside surface of the timber studs, nail treated softwood battens to the side of the studs, to provide a ‘stop’ to prevent the insulation boards from moving within the stud cavity.

vertical battens. G If the cladding system is to be finished with render, the

render carrier (e.g. calcium silicate board, expanded metal lath) can be fixed directly to the vertical battens. G Installation advice should be sought from the breathable

G This ‘stop’ should be positioned to allow the insulation

membrane manufacturer, and the ventilated cladding system should be secured in accordance with its manufacturer’s recommendations.

boards to finish flush with the inside surface of the studs. G Insulation boards may be temporarily held to the ‘stop’

battens with large headed clout nails.

G The boards will be further restrained by the plasterboard /

insulated plasterboard lining, fixed to the inside face of the studs. G If the insulation boards are to be fitted so that they are

flush with the outside surface of the timber studs, tight up against pre–installed OSB or plywood sheathing, insulation boards must be cut and fitted in the spaces between the studs.

G Ensure that the boards are lightly butted and continuity of

insulation is maintained.

G Once the boards are fitted in place, nail treated softwood

G Large headed galvanised clout nails may be used as

battens to the side of the studs, to provide a ‘stop’ to prevent the insulation boards from moving within the stud cavity.

temporary fixings for insulation boards. G A breathable membrane, e.g. Kingspan nilvent ®,

is fitted over the insulation, and temporarily stapled or pinned in place.

G When utilising Kingspan Kooltherm® K12 Framing Board

G Preservative treated softwood battens are fixed vertically to

the wall structure, through the insulation sheathing, and breathable membrane, ensuring that the battens and fixings are coincident with the underlying timber studs, head rails and sole plates. G When selecting the type of fixing and fixing frequency for

* With appropriate detailing at joints, penetrations and wall perimeters.

G In all cases, measure the distance between studs

the battens, consideration must be given to the weight of cladding to be fixed to them.

before cutting Kingspan Kooltherm® K12 Framing Board to size, as spacings can vary.

G If the cladding system is to be tile hung, horizontal tiling

G Ensure there is a tight fit between the boards and the

battens can then fixed to the vertical battens, and the tiles fixed to them.

adjoining studs and other timbers, and fill all gaps with expanding urethane sealant.

G Alternatively, timber cladding can be fixed directly to the

G A breathable membrane, e.g. Kingspan nilvent , is fitted

vertical battens.

G If the cladding system is to be finished with render, the

to the OSB or plywood sheathing / exterior of the insulated frame, and temporarily stapled or pinned in place.

render carrier (e.g. calcium silicate board, expanded metal lath) can be fixed directly to the vertical battens.

G Preservative treated battens are fixed vertically to the wall

G Installation advice should be sought from the breathable

structure, through the breathable membrane, ensuring that the battens and fixings are coincident with the underlying timber studs, head rails and sole plates.

membrane manufacturer, and the ventilated cladding system should be secured in accordance with its manufacturer’s recommendations.

G When selecting the type of fixing and fixing frequency for

the battens, consideration must be given to the weight of cladding to be fixed to them. G If the cladding system is to be tile hung, horizontal tiling

battens can then fixed to the vertical battens, and the tiles fixed to them. 9

Sitework Internal Dry Lining with Insulation Between Timber Framework

General

G The timber framework, backed with strips of damp proof

course (DPC), should be mechanically fixed to the masonry wall. G The timbers should be deep enough to accommodate the

required thickness of insulation and a 25 mm (min.) air space between the insulation and the masonry. G To avoid insulation boards moving within the timber

Daily Working Practice

framework cavity, nail treated softwood battens to the side of the timber members to provide a ‘stop’.

G At the completion of each day’s work, or whenever work is

G This ‘stop’ should be positioned to allow the insulation

interrupted for extended periods of time, board edges and joints should be protected from inclement weather.

boards to finish flush with the inner surface of the timbers. G Measure the distance between timber members before

Availability

G Kingspan Kooltherm® K12 Framing Board is available

cutting Kingspan Kooltherm® K12 Framing Board to size, as spacings can vary.

through specialist insulation distributors and selected builders’ merchants throughout the UK and Ireland.

G Insulation boards may be temporarily held to the ‘stop’

battens with large headed clout nails.

Packaging and Storage

G The polyethylene packaging of Kingspan Insulation

G Ensure there is a tight fit between the boards and the

products, which is recyclable, should not be considered adequate for outdoor protection.

adjoining timbers, and fill all gaps with expanding urethane sealant.

G Ideally, boards should be stored inside a building.

G The boards will be further restrained by the plasterboard /

If, however, outdoor storage cannot be avoided then the boards should be stacked clear of the ground and covered with an opaque polythene sheet or weatherproof tarpaulin. Boards that have been allowed to get wet should not be used.

insulated plasterboard lining, fixed to the inside face of the timbers. G When utilising Kingspan Kooltherm® K12 Framing Board

between timbers, a vapour control layer should be installed. This can be provided by vapour check plasterboard*, Kingspan Kooltherm® K18 Insulated Plasterboard*, the use of a layer of polythene sheeting*, or by the application of two coats of Gyproc Drywall Sealer.

Health and Safety

G Kingspan Insulation products are chemically inert and

safe to use. G A Safety Information Data Sheet for this product is

* With appropriate detailing at joints, penetrations and wall perimeters.

available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety.

Inside Studs / Timbers Layer of Insulation G Please refer to the literature for Kingspan Kooltherm® K18

Insulated Plasterboard for fixing instructions. This literature is available from the Kingspan Insulation Marketing Department or from the Kingspan Insulation website (see rear cover for details).

Please note that the reflective surfaces on this product are designed to enhance its thermal performance. As such, they will reflect light as well as heat, including ultraviolet light. Therefore, if this product is being installed during very bright or sunny weather, it is advisable to wear UV protective sunglasses or goggles, and if the skin is exposed for a significant period of time, to protect the bare skin with a UV block sun cream. The reflective facings used on this product can be slippery when wet. Therefore, it is recommended that any excess material should be contained to avoid a slip hazard. Warning – do not stand on or otherwise support your weight on this product unless it is fully supported by a load bearing surface.

Product Details The Facings

Compressive Strength

Kingspan Kooltherm K12 Framing Board is faced on both sides with a low emissivity composite foil, autohesively bonded to the insulation core during manufacture. This reflective, low emissivity surface improves the thermal resistance of any unventilated cavity adjacent to the board.

The compressive strength of Kingspan Kooltherm® K12 Framing Board typically exceeds 100 kPa at 10% compression, when tested to BS /I.S. EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

The Core

Water Vapour Resistance

The core of Kingspan Kooltherm K12 Framing Board is a premium performance rigid thermoset modified resin insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP). ®

Adjusted for the effect of board joints, the product typically achieves a resistance far greater than 100 MN.s/g, when tested in accordance with BS EN 12086: 1997 / I.S. EN 12086: 1998 (Thermal insulating products for building applications. Determination of water vapour transmission properties).

Standards and Approvals

Durability

Kingspan Kooltherm® K12 Framing Board is manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

If correctly installed, Kingspan Kooltherm® K12 Framing Board can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

The use of Kingspan Kooltherm® K12 Framing Board, produced at Kingspan Insulation’s Pembridge manufacturing facility, is covered by BBA Certificate 08/4615, and that produced at Kingspan Insulation’s Castleblayney manufacturing facility by NSAI Agrément Certificate 09/0329.

The insulation core and facings used in the manufacture of Kingspan Kooltherm® K12 Framing Board resist attack by mould and microbial growth, and do not provide any food value to vermin.

Standard Dimensions Kingspan Kooltherm® K12 Framing Board is available in the following standard size(s): Nominal Dimension Length Width Insulant Thickness

Availability (m) (m) (mm)

2.4 1.2 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

* Kingspan Kooltherm® K12 Framing Board is available in other widths subject to quantity. Extended lead times and price premiums will apply.

Product Details Fire Performance

Kingspan Kooltherm® K12 Framing Board is Class 1, as defined by BS 476–7: 1997 (Fire tests on building materials and structures. Method of test to determine the classification of the surface spread of flame of products). The rigid thermoset insulation core of Kingspan Kooltherm® K12 Framing Board is Class 0, as defined by the Building Regulations.

The rigid thermoset insulation core of Kingspan Kooltherm® K12 Framing Board, when subjected to the British Standard fire test specified in the table below, has achieved the result shown. Test

Result

BS 5111–1: 1974 (Smoke Obscuration)

< 5% (Negligible smoke obscuration)

Kingspan Kooltherm® K12 Framing Board in the construction specified in the table below, when subjected to British Standard fire test BS 476–21: 1987 (Fire tests on building materials and structures. Methods for determination of the fire resistance of loadbearing elements of construction), has achieved the result shown. Construction 12.5 mm plasterboard, 75 mm Kingspan Kooltherm® K12 Framing Board, 100 x 50 mm timber studs @ 600 mm centres with 9 mm OSB sheathing.

Result 51 minutes integrity and load bearing capacity; 50 minutes insulation.

BRE Global has determined that Kingspan Kooltherm® K12 Framing Board, in the constructions specified in the table below, when assessed against the performance requirements of British Standard fire test BS 476–21: 1987 (Fire tests on building materials and structures. Methods for determination of the fire resistance of loadbearing elements of construction), will achieve the results shown. Construction 15 mm fire resistant plasterboard, 75 mm Kingspan Kooltherm® K12 Framing Board, 100 x 50 mm timber studs @ 600 mm centres with 9 mm OSB sheathing 2 x 12.5 mm plasterboard, 75 mm Kingspan Kooltherm® K12 Framing Board, 100 x 50 mm timber studs @ 600 mm centres with 9 mm OSB sheathing.

Insulant Thickness (mm)

Thermal Resistance (m2.K/W)

20 25 30 35 40 45 50 55 60 65 70 75 80 90 100 110 120

0.85 1.15 1.40 1.65 1.90 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.50 5.00 5.50 6.00

NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Result 60 minutes integrity, insulation and load bearing capacity.

60 minutes integrity, insulation and load bearing capacity.

Further details on the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

Kingspan Insulation Company Details

Insulation Product Benefits

specific U–value.

Kingspan Insulation Ltd is a market leading manufacturer of premium and high performance rigid insulation products and insulated systems for building fabric and building services applications.

G Rigid thermoset insulation core is Class 0, as defined

by the Building Regulations in England, Wales & Ireland, and Low Risk, as defined by the Building Standards in Scotland. G Rigid thermoset insulation core achieves the best possible

Products & Applications

rating of < 5% smoke obscuration when tested to BS 5111: Part 1: 1974.

G Manufactured with a blowing agent that has zero Ozone

Depletion Potential (ODP) and low Global Warming Potential (GWP).

Insulation for: G Pitched Roofs

Kingspan Therma™ Range Products G With a thermal conductivity of 0.022–0.027 W/m.K these are amongst the more thermally efficient insulation products commonly used.

G Flat Roofs G Green Roofs G Cavity Walls

G Each product achieves the required fire performance for its

G Solid Walls

intended application.

G Timber and Steel Framing

G Manufactured with a blowing agent that has zero Ozone

G Insulated Cladding Systems

Depletion Potential (ODP) and low Global Warming Potential (GWP).

G Insulated Render Systems G Floors

G Soffits G Ductwork

Further Solutions:

G Insulated Dry–Lining

G Each product achieves the required fire performance for its

G Tapered Roofing Systems

intended application.

G Cavity Closers

G Manufactured with a blowing agent that has zero Ozone

G Kingspan KoolDuct® Pre–Insulated Ducting

Depletion Potential (ODP).

G Kingspan nilvent Breathable Membranes ®

G Kingspan TEK® Building System

G Unaffected by air infiltration – a problem that can be

experienced with mineral fibre and which can reduce thermal performance. G Safe and easy to install – non–fibrous. G If installed correctly, can provide reliable long term thermal

performance over the lifetime of the building.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Ireland

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd is a member of: The UK Timber Frame Association (UKTFA)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Insulation CI/Sfb

(27.9)

Ninth Issue

Rn7

March 2011

K15 Rainscreen Board INSULATION FOR RAINSCREEN CLADDING SYSTEMS G

Premium performance rigid thermoset insulation – thermal conductivities as low as 0.020 W/m.K First insulation board for use in rainscreen cladding applications to achieve LABC System Approval Successfully tested to BS 8414: 2002, can meet the criteria within BR135 and is therefore acceptable for use above 18 metres

Class 0 fire rating

Class 0 fire rated insulation core

Negligible smoke obscuration

Unaffected by air infiltration

G G G G G

Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP and low GWP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

Typical Constructions

Because rainscreen systems are proprietary and utilise different mechanisms for attaching cladding panels to the wall structure, it is advisable to contact the Kingspan Insulation Technical Service Department (see rear cover) for specific U–value calculations. All calculations are performed using the method detailed in BS / I.S. EN ISO 6946: 2007 (Building components and building elements. Thermal resistance and thermal transmittance. Calculation method), and using the conventions set out in BR443 (Conventions for U−value calculations).

Non−combustible substrate – structural masonry wall

Kingspan Kooltherm® K15 Rainscreen Board

Proprietary fixing rail

Cladding panel

Figure 1 – Insulated Rainscreen Cladding Systems (non–proprietary external finish)

Non−combustible substrate – structural masonry wall

Kingspan Kooltherm® K15 Rainscreen Board

Proprietary fixing rail

Terracotta clay tile panels

Figure 2 – Insulated Rainscreen Cladding Systems (terracotta clay tile external finish)

Non−combustible substrate – calcium silicate board

Kingspan Kooltherm® K15 Rainscreen Board

Proprietary fixing rail

Cladding panel

Figure 3 – Insulated Rainscreen Cladding Systems on Steel Frame

Design Considerations Environmental Impact & Responsible Sourcing

NBS Specifications

Green Guide Rating An Ecoprofile, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, has been created for Kingspan Kooltherm® K15 Rainscreen Board produced at Kingspan Insulation’s Pembridge manufacturing facility. The BRE has assigned the product a 2008 Green Guide Summary Rating of A+.

Details also available in NBS Plus. NBS users should refer to clause(s): H92 776 (Standard and Intermediate)

Cold Bridging The use of a neoprene / plastic gasket, between the ‘helping hand’ bracket and the structure, will help to mitigate the effects of cold bridging. Please contact the Kingspan Insulation Technical Service Department (see rear cover) for further information.

Water Vapour Control / Condensation

Environmental Profiles Scheme Certificate Number ENP 410

Consideration should be given to the risk of condensation, when designing thermal elements.

Responsible Sourcing Kingspan Kooltherm® K15 Rainscreen Board produced at Kingspan Insulation's Pembridge and Castleblayney manufacturing facilities is manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer component of the product produced at these facilities are also manufactured under a management system certified to BS EN ISO 14001: 2004.

Fire Stops

NB The above information is correct at the time of writing. Please confirm the point of need by contacting Kingspan Insulation’s Technical Services Department (see rear cover), from which copies of Kingspan Insulation and its suppliers’ ISO 14001 certificates can be obtained along with confirmation of Kingspan Insulation's products' Green Guide ratings.

Current Building Regulations / Standards should be considered with regard to the requirements for, and provision of, fire stops.

Sustainability & Responsibility

Glazed Curtain Walling Systems

Kingspan Kooltherm® K15 Rainscreen Board should not be used directly behind glazed curtain walls. Please contact the Kingspan Insulation Technical Service Department (see rear cover for details) for advice regarding the suitability of Kingspan Kooltherm® K15 Rainscreen Board in other glazed applications.

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

Lightning Protection Designers should give consideration to the requirements of BS / I.S. EN 62305: 2006 (Protection against lightning).

Specification Clause Kingspan Kooltherm® K15 Rainscreen Board should be described in specifications as:– The wall insulation shall be Kingspan Kooltherm® K15 Rainscreen Board ____ mm thick: comprising a premium performance rigid thermoset insulation core faced on both sides with a low emissivity composite foil facing. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them. 3

Sitework Installation G Because rainscreen cladding systems are proprietary and

G For advice on the specification of self–adhesive aluminium

foil tape and application guidelines, please refer to:

utilise different mechanisms for attaching cladding panels to the wall structure, installation guidance should be sought from the system manufacturer. G However, in the absence of any other guidance the

instructions laid out below may be followed. G Insulation boards should be installed break–bonded with

Bostik Limited www.bostik.co.uk

+44 (0) 1785 272 727

Venture TapeEurope www.venturetape.com

+44 (0) 1327 876 555

Recommended Fixing Patterns

board edges lightly butted. G Boards should be cut neatly around fixings and brackets,

G The images below show recommended fixing patterns,

so as to avoid gaps.

the number of fixings used and the resulting fixing density (number of fixings per m2).

G The number and type of mechanical fixings required to fix

Kingspan Kooltherm® K15 Rainscreen Board will vary with the geographical location of the building, the local topography, the height and width of the wall concerned, the wall structure, and the type of mechanism being used to attach the cladding system. G A minimum of 9 fixings are required to secure the 9 No. per board (2.4 x 1.2 m board – 3.12 fixings / m2)

insulation board to the wall structure. G The requirement for additional fixings should be assessed

in accordance with BS 6399–2: 1997 (Loadings for buildings. Code of practice for wind loads) or BS / I.S. EN 1991–1.4: 2005 (National Annex to Eurocode 1. Actions on structures, General Actions, Wind Actions). G The fixings should be evenly distributed over the whole

area of the board.

10 No. per board (2.4 x 1.2 m board – 3.47 fixings / m2)

G Please refer to the column opposite for recommended

fixing patterns. G Fasteners at board edges must be located > 50 mm

and < 150 mm from edges and corners of the board and not overlap board joints. Refer to: Ejot UK Limited www.ejot.co.uk

+44 (0)1977 687 040

MAK Fasteners www.makfasteners.com

+353 (0) 1 451 99 00

SFS Intec www.sfsintec.biz/uk

+44 (0) 113 2085 500

Tech Fasteners www.techfasteners.ie

+353 (0) 1 457 33 00

11 No. per board (2.4 x 1.2 m board – 3.82 fixings / m2)

12 No. per board (2.4 x 1.2 m board – 4.17 fixings / m2)

G The joints of Kingspan Kooltherm® K15 Rainscreen Board

should always be taped using a 75 mm min. wide self–adhesive aluminium foil rainscreen cladding tape. G In the absence of other protection, exposed edges of

Kingspan Kooltherm® K15 Rainscreen Board should be protected by a suitable self–adhesive aluminium foil tape, with a 50 mm min. wide overlap onto the insulation board face.

13 No. per board (2.4 x 1.2 m board – 4.51 fixings / m2) 4

Product Details Fire Stopping

The Facings

G Fire stopping systems are proprietary. Please contact the

Kingspan Kooltherm® K15 Rainscreen Board is faced on both sides with a low emissivity composite foil, autohesively bonded to the insulation core during manufacture.

Kingspan Insulation Technical Service Department (see rear cover for details) for advice regarding the fire stopping strategy for your construction.

The Core General

The core of Kingspan Kooltherm® K15 Rainscreen Board is a premium performance rigid thermoset modified resin insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Standards and Approvals

and continuity of insulation.

Kingspan Kooltherm® K15 Rainscreen Board is manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

Daily Working Practice

G At the completion of each day’s work, or whenever work is

interrupted for extended periods of time, board edges and joints should be protected from inclement weather. Availability

G Kingspan Kooltherm® K15 Rainscreen Board is available

The use of Kingspan Kooltherm® K15 Rainscreen Board, produced at Kingspan Insulation’s Pembridge manufacturing facility, is covered by BBA Certificate 08/4582, and that produced at Kingspan Insulation’s Castleblayney manufacturing facility by NSAI Agrément Certificate 08/0321.

through specialist insulation distributors and selected builders’ merchants throughout the UK and Ireland. Packaging and Storage G The polyethylene packaging of Kingspan Insulation products, which is recyclable, should not be considered adequate for outdoor protection. G Ideally, boards should be stored inside a building.

Kingspan Kooltherm® K15 Rainscreen Board is the first insulation board to achieve an LABC System Approval as a thermal insulation layer in rainscreen cladding systems. An LABC System Approval can significantly reduce the time and costs associated with a construction project. Please contact the Kingspan Insulation Technical Service Department (see rear cover) for further information.

Health and Safety G Kingspan Insulation products are chemically inert and safe to use. G A Safety Information Data Sheet for this product is

available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety. Certificate No. 452–7–7194

Standard Dimensions Kingspan Kooltherm® K15 Rainscreen Board is available in the following standard size(s):

Nominal Dimension Length Width Insulant Thickness

(m) (m) (mm)

Availability 2.4 1.2 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Compressive Strength

Fire Performance

The compressive strength of Kingspan Kooltherm® K15 Rainscreen Board typically exceeds 100 kPa at 10% compression, when tested to BS / I.S. EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

Kingspan Kooltherm® K15 Rainscreen Board, and its rigid thermoset insulation core, are Class 0, as defined by the Building Regulations. The rigid thermoset insulation core of Kingspan Kooltherm® K15 Rainscreen Board, when subjected to the British Standard fire test specified in the table below, has achieved the result shown.

Test

Result

BS 5111–1: 1974 (Smoke Obscuration)

< 5% (Negligible smoke obscuration)

Kingspan Kooltherm® K15 Rainscreen Board in the construction specified in the table below, when subjected to the British Standard fire test BS 8414: 2002 (Fire performance of external cladding systems. Test methods for non–load bearing external cladding systems applied to the face of a building), has achieved the result shown.

Durability If correctly installed, Kingspan Kooltherm® K15 Rainscreen Board can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Construction

Result

6 mm non–combustible cladding fixed to an aluminium railing system at 600 mm centres, 40 mm ventilated cavity, 60 mm Kingspan Kooltherm® K15 Rainscreen Board mechanically fixed to non–combustible substrate.

The tested product meets the criteria stated within BRE 135 (Fire performance of external thermal insulation for walls of multi storey buildings) and is therefore acceptable for use above 18 metres in accordance with the Building Regulations / Standards.

NB Fire stopping was provided by a ventilated rainscreen barrier system, comprising nominal 2.5 mm thick graphite–based intumescent strip bonded to nominal 0.6 mm thick galvanized steel sheet, and positioned 0.5 m and 4 m above the fire chamber on both the main face and the wing face.

Further details of the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

The insulation core and facings used in the manufacture of Kingspan Kooltherm® K15 Rainscreen Board resist attack by mould and microbial growth, and do not provide any food value to vermin.

Kingspan Insulation Insulation Product Benefits

specific U–value.

G Rigid thermoset insulation core is Class 0, as defined

by the Building Regulations in England, Wales & Ireland, and Low Risk, as defined by the Building Standards in Scotland. G Rigid thermoset insulation core achieves the best possible

Thermal Resistance (m2.K/W)

25 30 40 50 60 70 75 80 90 100 110 120 125 130 140

1.15 1.40 1.90 2.50 3.00 3.50 3.75 4.00 4.50 5.00 5.50 6.00 6.25 6.50 7.00

rating of < 5% smoke obscuration when tested to BS 5111: Part 1: 1974. G Manufactured with a blowing agent that has zero Ozone

intended application. G Manufactured with a blowing agent that has zero Ozone

NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

G Each product achieves the required fire performance for its

intended application. G Manufactured with a blowing agent that has zero Ozone

experienced with mineral fibre and which can reduce thermal performance. G Safe and easy to install – non–fibrous. G If installed correctly, can provide reliable long term thermal

performance over the lifetime of the building.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 384 – Fax: +44 (0) 1544 387 484 – email: literature@kingspaninsulation.co.uk – www.kingspaninsulation.co.uk/literature

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie – www.kingspaninsulation.ie/literature

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd is a member of: The National Insulation Association (NIA)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Kingspan, Kooltherm, Styrozone, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK, Ireland and other countries. All rights reserved. ™ Therma is a Trademark of the Kingspan Group plc. The LABC device is a ‘Collective Mark’ of the Local Authority Building Control. Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456. Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Insulation CI/Sfb

(21.9)

Fifth Issue

Rn7

March 2011

K17 Insulated Plasterboard INSULATED PLASTERBOARD FOR PLASTER DAB / ADHESIVE BONDED DRY–LINING

Premium performance rigid thermoset insulation – thermal conductivities as low as 0.020 W/m.K

Class 0 fire rating

Class 0 fire rated insulation core

Negligible smoke obscuration

Insulation, dry–lining and vapour control in one board

Allows quick response heating

Unaffected by air infiltration

G G

Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP and low GWP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

Masonry Cavity Walls

102.5 mm Brick Outer Leaf / Cavity / 102.5 mm Brick Inner Leaf

Adhesive dabs (see ‘Sitework – Plaster Dab / Drywall Adhesive Bonding’)

Nailable plugs (2 No. per board)

Brick / brick outer and inner leaf

These examples are based on the use of 3 mm skim coated Kingspan Kooltherm® K17 Insulated Plasterboard dot and dab bonded to the construction described.

3 mm skim coated Kingspan Kooltherm® K17 Insulated Plasterboard

NB When calculating U–values to BS / I.S. EN ISO 6946: 2007, the type of mechanical fixing used may change the thickness of insulation required. These calculations assume dot and dab bonded insulated plasterboard and the use of two nailable plugs per board. Calculations assume the effect of nailable plugs on the U−value to be insignificant and therefore no correction factor for mechanical fixings has been taken.

5 mm packer (see ‘Sitework – Corner & Skirting Details’)

Continuous fillet of adhesive for airtightness and acting as fire stop

Figure 1

NB For the purposes of these calculations the standard of workmanship has been assumed good, and therefore the correction factor for air gaps has been ignored.

U–values for Various Product Thicknesses of Kingspan Kooltherm® K17 Insulated Plasterboard

Product Thickness* (mm)

U–values (W/m2.K)

57.5 62.5 72.5 82.5 87.5 92.5

0.30 0.26 0.23 0.22 0.21

* Product thickness = insulant thickness + 12.5 mm plasterboard.

* Excluding Change of Use and Material Alterations.

Where an is shown, the combination of insulation products may result in an interstitial condensation risk and so the calculations have been excluded.

10 mm Polymer Rendered 100 mm Block Outer Leaf / Cavity / 100 mm Block Inner Leaf

102.5 mm Brick Outer Leaf / Cavity / 100 mm Block Inner Leaf

10 mm polymer render Adhesive dabs (see ‘Sitework – Plaster Dab / Drywall Adhesive Bonding’)

Nailable plugs (2 No. per board)

Adhesive dabs (see ‘Sitework – Plaster Dab / Drywall Adhesive Bonding’)

Nailable plugs (2 No. per board)

Brick / block outer and inner leaf

Block / block outer and inner leaf

5 mm packer (see ‘Sitework – Corner & Skirting Details’)

3 mm skim coated Kingspan Kooltherm® K17 Insulated Plasterboard

Kingspan Kooltherm® K8 Insulated Cavity Board (optional)

Kingspan Kooltherm® K8 Insulated Cavity Board (optional) 5 mm packer (see ‘Sitework – Corner & Skirting Details’)

Continuous fillet of adhesive for airtightness and acting as fire stop

Figure 2

Figure 3

U–values (W/m2.K) for Various Product Thicknesses of Kingspan Kooltherm® K17 Insulated Plasterboard and Thicknesses of Kingspan Kooltherm® K8 Cavity Board Kooltherm® K17 Product Thickness* (mm)

U–values (W/m2.K) for Various Product Thicknesses of Kingspan Kooltherm® K17 Insulated Plasterboard and Thicknesses of Kingspan Kooltherm® K8 Cavity Board

Inner Leaf Blockwork Density and λ−value (W/m.K) Kooltherm® K17 Product Thin Joint Thickness* Dense Medium Lightweight Aerated Aerated (1.13) (0.51) (0.15)** (0.11)** (0.11)*** (mm)

Inner & Outer Leaf Blockwork Density and λ−value (W/m.K) Dense (1.13) Clear Cavity

47.5 52.5 57.5 62.5 72.5 82.5 87.5 92.5

0.33 0.30 0.26 0.23 0.22 0.21

Medium (0.51)

37.5 42.5 47.5 52.5 57.5 62.5 72.5 82.5 87.5 92.5

0.34 0.30 0.28 0.25 0.22 0.21 0.20

100 mm Cavity Partially Filled with 50 mm of Kingspan Kooltherm® K8 Cavity Board† 32.5 37.5 42.5 52.5 62.5 67.5

0.21 0.20 0.19 0.18 0.16

0.21 0.19 0.18 0.17 0.15

32.5 37.5 42.5 52.5 62.5 67.5

100 mm Cavity Partially Filled with 60 mm of Kingspan Kooltherm® K8 Cavity Board† 32.5 37.5 42.5 52.5 62.5

Continuous fillet of adhesive for airtightness and acting as fire stop

0.19 0.18 0.18 0.16 0.15

0.19 0.18 0.17 0.16 0.14

32.5 37.5 42.5 52.5 62.5

* Product thickness = insulant thickness + 12.5 mm plasterboard. † Please read the section entitled ‘Residual Cavity Width’ in the literature for Kingspan Kooltherm® K8 Cavity Board for details of cavity width requirements in the UK and Ireland.

Clear Cavity

0.35 0.34 0.32 0.32 0.30 0.33 0.32 0.29 0.27 0.30 0.29 0.27 0.25 0.26 0.26 0.23 0.23 0.23 0.23 0.21 0.20 0.22 0.22 0.20 0.19 0.21 0.20 0.19 0.18 100 mm Cavity Partially Filled with 50 mm of Kingspan Kooltherm® K8 Cavity Board† 0.22 0.21 0.20 0.19 0.20 0.20 0.18 0.18 0.19 0.19 0.18 0.17 0.18 0.17 0.16 0.16 0.16 0.16 0.15 0.15

100 mm Cavity Partially Filled with 60 mm of Kingspan Kooltherm® K8 Cavity Board† 0.20 0.19 0.18 0.17 0.18 0.18 0.17 0.16 0.18 0.17 0.16 0.16 0.16 0.16 0.15 0.15 0.15 0.15 0.14 0.14

* Product thickness = insulant thickness + 12.5 mm plasterboard. ** A 6.6% thermal bridging factor has assumed for the effect of mortar joints. *** A 1.4% thermal bridging factor has assumed for the effect of mortar joints.

0.35 0.32 0.30 0.27 0.25 0.22 0.20 0.19 0.18

0.19 0.18 0.17 0.16 0.14

0.17 0.16 0.16 0.15 0.13

Solid Masonry Walls

Linear Thermal Bridging at Openings

10 mm Polymer Rendered 215 mm Blockwork

Linear thermal bridging describes the heat loss at junctions between elements, where the geometry of the junction means that a building’s primary insulation layer is not continuous or is reduced. This heat loss is represented by the junction’s psi (ψ) value. The ψ–values of all the linear thermal bridges in a building are used to calculate an overall y–value which is used in whole building carbon dioxide emissions calculation software.

10 mm polymer render Adhesive dabs (see ‘Sitework – Plaster Dab / Drywall Adhesive Bonding’)

Nailable plugs (2 No. per board)

215 mm blockwork

At a window or door opening, in a wall insulated with Kingspan Kooltherm® K18 Insulated Plasterboard, the linear thermal bridge is the reveal. This linear thermal bridge can be reduced by insulating the reveal. The key factor is the thermal resistance (R–value) of this insulation layer.

3 mm skim coated Kingspan Kooltherm® K17 Insulated Plasterboard

5 mm packer (see ‘Sitework – Corner & Skirting Details’)

Accredited Construction Details (England & Wales / Scotland / Northern Ireland) and Acceptable Construction Details (Republic of Ireland), collectively referred to here as ACDs, feature details for walls with insulated dry–lining, with reveals insulated with a material of minimum thermal resistance (R–value) of 0.34 m2.K/W. These constructions have the following ψ–values: 0.50 W/m.K for a steel lintel with a perforated steel base, 0.30 W/m.K for other lintels (including steel lintels), 0.04 W/m.K for a sill and 0.05 W/m.K for a jamb.

Continuous fillet of adhesive for airtightness and acting as fire stop

Figure 4 U–values (W/m2.K) for Various Product Thicknesses of Kingspan Kooltherm® K17 Insulated Plasterboard Blockwork Density and λ−value W/m.K Product Thin Joint Thickness* Dense Medium Lightweight Aerated Aerated (mm) (1.13) (0.51) (0.15)** (0.11)** (0.11)*** 32.5 37.5 42.5 52.5 57.5 62.5 72.5 82.5 87.5 92.5

0.34 0.32 0.27 0.24 0.23 0.21

0.32 0.30 0.26 0.23 0.22 0.21

0.35 0.32 0.28 0.26 0.24 0.21 0.19 0.18 0.18

0.35 0.31 0.29 0.25 0.23 0.22 0.20 0.18 0.17 0.17

Adhering to these constructions, entitles a designer to use a default y–value in whole building carbon dioxide emissions calculation software.

0.34 0.31 0.28 0.25 0.23 0.22 0.20 0.18 0.17 0.16

ACDs are specifically targeted at new build constructions but, where applicable, they are also considered best practice for refurbishment. Reveals should be designed to accommodate the 32.5 mm of Kingspan Kooltherm® K17 Insulated Plasterboard required to achieve an R–value of 0.34 m2.K/W, and the depth of fixing system and finishings (see Sitework – Figure 10).

Design Considerations Environmental Impact & Responsible Sourcing

NBS Specifications

Green Guide Rating An Ecoprofile, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, has been created for the insulation component of Kingspan Kooltherm® K17 Insulated Plasterboard produced at Kingspan Insulation’s Pembridge manufacturing facility. The BRE has assigned the product a 2008 Green Guide Summary Rating of A+.

Details also available in NBS Plus. NBS users should refer to clause(s): K10 145, K10 155, K10 165, K10 175, K10 205, K10 415 (Standard and Intermediate) K10 15, K10 35, K10 41 (Minor Works)

Design Standards BS 8212: 1995 (Code of practice for dry lining and partitioning using gypsum plasterboard) should be considered.

Limitations Environmental Profiles Scheme Certificate Number ENP 410

Kingspan Kooltherm® K17 Insulated Plasterboard has a gypsum plasterboard face. It should, therefore, not be used to isolate dampness, nor be used in continuously damp or humid conditions.

Responsible Sourcing Kingspan Kooltherm® K17 Insulated Plasterboard produced at Kingspan Insulation's Pembridge and Castleblayney manufacturing facilities is manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer component of the product produced at these facilities is also manufactured under a management system certified to BS EN ISO 14001: 2004.

Fire Stops Current Building Regulations / Standards should be considered with regard to the requirements for and provision of fire stops.

Water Vapour Control / Condensation Consideration should be given to the risk of condensation, when designing thermal elements.

Sustainability & Responsibility

When internally lining a construction with insulation, condensation can be controlled by ensuring there is a layer of high vapour resistance on the internal surface of the construction. Kingspan Kooltherm® K17 Insulated Plasterboard contains an integral vapour control layer and, when installed correctly, with appropriate detailing at joints between sheets, penetrations and wall perimeters, can provide the necessary vapour resistance. If required, the vapour resistance of the wall lining can be increased by the application of two coats of Gyproc Drywall Sealer.

Specification Clause

Kingspan Kooltherm® K17 Insulated Plasterboard should be described in specifications as:– The wall dry–lining insulation shall be Kingspan Kooltherm® K17 Insulated Plasterboard____ mm thick: comprising a premium performance rigid thermoset insulation core with 12.5 mm plasterboard bonded to its front surface and a glass tissue based facing on its reverse surface. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them. 5

Sitework Preparation G The ceiling lining should be in position before wall lining

1.2 m

commences. G Wall mounted fittings such as electrical sockets should 1.2 m

be fitted so as to take into account the additional wall thickness. G On existing constructions all surfaces should be clean, dry

Nailable plug in tapered edge 2.4 m

and free of loose or flaking materials. Wallpaper should be stripped and surface mounted fittings removed.

Plaster Dab / Drywall Adhesive Bonding G This method is suitable for use on masonry cavity walls,

or rendered solid masonry walls which are free from moisture penetration. G This method is not suitable for use on non−rendered solid

Figure 5 Nailable plug fixing pattern

masonry walls where there is a risk of moisture penetration, or on timber frame.

Mechanical Fixing G Kingspan Kooltherm® K18 Insulated Plasterboard should

G Guidelines should be marked out on the floor and ceiling

be considered for mechanically fixed specifications, as it will often give better U−values than Kingspan Kooltherm® K17 Insulated Plasterboard.

to indicate where the edges of Kingspan Kooltherm® K17 Insulated Plasterboard should finish. G The plaster / drywall adhesive should be appropriate for

To Timber Framing Studs / Battens

use on the intended masonry substrate. Advice should be sought from the plaster / drywall adhesive manufacturer for its recommended system.

G This method may be used on timber frame constructions

or on masonry walls that will support and retain battens and associated fixings.

G A continuous fillet of plaster / drywall adhesive is applied

G Vertical timber framing studs / battens should be set

around the perimeter of each wall and around any openings, in order to provide an air−tight seal and act as a fire stop.

at maximum 600 mm horizontal centres, and timber framing studs / battens / noggins should be positioned horizontally at floor and ceiling level and at max. 1200 mm vertical centres.

G Vertical dabs of the plaster / drywall adhesive are

G If fixing to battens, they should be mechanically fixed to the

progressively applied to the background. G The number, size and lay–out of the dabs should follow

wall, and comprise 25 x 47 mm (min.) treated softwood, backed with a strip of damp proof course (DPC).

the chosen plaster / drywall adhesive manufacturer’s recommendations.

G Where joints between sheets of insulated plasterboard

are unsupported by the timber framing studs / battens, timber noggins should be installed.

G Sheets of Kingspan Kooltherm® K17 Insulated

G Each sheet of insulated plasterboard should lap timber

Plasterboard are then located against the adhesive dabs and tapped back to align with predetermined guidelines on the floor and ceiling. The use of a spirit level is recommended to provide a vertical finish.

framing studs / battens / noggins by 19 mm (min.) at sheet joints.

G Sheets of Kingspan Kooltherm® K17 Insulated

G Nailable plugs are recommended to back up the plaster /

Plasterboard should be fixed using either drywall screws at 300 mm centres, or large headed galvanised clout nails at 150 mm centres.

drywall adhesive dab bond. These are normally applied at a rate of 2 No. per sheet, after the plaster / drywall adhesive dabs have set (see fig 5).

G When installing sheets onto timber battens, fixings should

G It is recommended that nailable plugs are positioned in

be located no less than 10 mm from the edges of the sheets, and be long enough to allow minimum 22.5 mm penetration of the timber. Fixings should not penetrate through the battens.

the tapered edge of the sheets so that they are covered when the board is finished (e.g. joints taped and 3 mm skim coating). 6

G When installing sheets onto timber frame studs, fixings

For details on fixings refer to:

should be located no less than 10 mm from the edges of the sheets, and be long enough to allow a minimum 25 mm penetration of the timber.

G Fixings should be driven straight, with the heads

embedded just below the surface of the plasterboard.

G Care should be taken not to overdrive nails / screws.

To Metal Framing Systems G Because metal framing systems are proprietary, sitework guidance should be sought from the framing manufacturer.

Ejot UK Limited www.ejot.co.uk

+44 (0) 1977 687 040

MAK Fasteners www.makfasteners.com

+353 (0) 1 451 99 00

Tech Fasteners www.techfasteners.ie

+353 (0) 1 457 33 00

G Fixings should not overlap board edges.

To Timber Joists or Rafters

G However, in the absence of any other guidance, the

G Sheets of Kingspan Kooltherm® K17 Insulated

instructions laid out below may be followed.

Plasterboard may be used to line ceilings (see Figure 6).

G The metal framing should be installed as a separate

structure, independent from the masonry or concrete wall, to provide a vertical and flat base for the sheets of insulated plasterboard. G The framing should be set at a maximum of 600 mm

centres, and to coincide with the long edges, and centre lines, of the sheets of insulated plasterboard. G Short lengths of metal framing should be fixed horizontally

between the vertical pieces at skirting level, just below the ceiling or soffit level, and at max. 1200 mm vertical centres.

Kingspan Kooltherm® K7 Pitched Roof Board

G Short lengths of metal framing should also be used as

noggins where board joints between sheets are unsupported.

3 mm skim coated Kingspan Kooltherm® K17 Insulated Plasterboard under rafters

G Sheets of Kingspan Kooltherm® K17 Insulated

Figure 6 – Mechanically fixed to timber rafters with Kingspan Kooltherm® K7 Pitched Roof Board between rafters

Plasterboard should be fixed using either drywall screws at 300 mm centres, or self drilling and tapping, countersunk, zinc coated screws placed at 150 mm centres.

G Sheets must always be placed with the long edge

running across the joists or rafters, and all edges must be supported.

G Fixings should be located no less than 10 mm from the

G Where joints between sheets of insulated plasterboard are

edges of the sheet. G Fixings should be driven straight, with the heads

unsupported by the timber joists / rafters, timber noggins should be installed.

embedded just below the surface of the plasterboard.

G Each sheet of insulated plasterboard should lap joists /

G Care should be taken not to overdrive screws.

rafters / noggins by 19 mm (min.) at sheet joints.

Direct to Masonry Substrates G This installation method is suitable for rendered or cavity walls.

G Sheets should be fixed using either drywall screws at

230 mm centres, or large–headed galvanized clout nails placed at 150 mm centres.

G The wall should be sound, dry and flat (as surface

G Fixings should be located no less than 10 mm from the

irregularities may impede fixing of the board). G The board should be fully restrained using mechanical

edges of the sheet, and be long enough to allow a minimum 25 mm penetration of the timber.

fixings.

G Fixings should be driven straight, with the heads

G The type and length of mechanical fixing required will

embedded just below the surface of the plasterboard.

depend on the type of masonry substrate and the thickness of Kingspan Kooltherm® K17 Insulated Plasterboard.

G Care should be taken not to overdrive nails / screws.

Fixing Heavy Internal Fittings G Suitable mechanical fixings should be used for heavy

G 18 mm plywood should then be fixed through insulation

internal fittings (kitchen units, shelving etc), to ensure the load is applied direct to the supporting wall and not to the Kingspan Kooltherm® K17 Insulated Plasterboard.

boards to the timber framing studs / battens, using either drywall screws at 300 mm centres, or large headed galvanised clout nails at 150 mm centres. G When fixing plywood through the insulation boards onto

For details on fixings refer to: MAK Fasteners www.makfasteners.com

+353 (0) 1 451 99 00

Tech Fasteners www.techfasteners.ie

+353 (0) 1 457 33 00

Tiger Fixings www.tigerfixings.com

+44 (0) 845 603 8877

timber battens, fixings should be located no less than 10 mm from the edges of the sheets, and be long enough to allow minimum 22.5 mm penetration of the timber. Fixings should not penetrate through the battens. G When fixing plywood through the insulation boards onto a

timber frame, fixings should be located no less than 10 mm from the edges of the sheets, and be long enough to allow a minimum 25 mm penetration of the timber.

G Alternatively, where there are to be extensive heavy

G Fixings should be driven straight, with the heads

internal fittings, the construction outlined in Figure 7 can be adopted.

embedded just below the surface of the plywood. G 12.5 mm plasterboard is then fixed to the plywood, using

either drywall screws at 300 mm centres, or large headed galvanised clout nails at 150 mm centres.

Masonry substrate 25 x 47 mm timber batten

G Fixings should be driven straight, with the heads

Strip of damp proof course (if there is a risk of moisture penetration)

embedded just below the surface of the plasterboard. G Care should be taken not to overdrive nails / screws. G Heavy fittings can be fixed through the plasterboard

Kingspan Kooltherm® K12 Framing Board

directly to the plywood.

18 mm plywood

Corner & Skirting Details

3 mm skim coated 12.5 mm plasterboard

G For internal and external corners, sheets should be cut and

5 mm packer (see ‘Sitework – Corner & Skirting Details’)

rebated to allow a plasterboard / plasterboard joint at the angle (see Figures 8 & 10). G For internal and external corners, ensure sheets are lightly

Figure 7 G Vertical timber framing studs / battens should be set at

butted and air gaps minimised to reduce the risk of cold bridging (see Figures 8 & 10).

maximum 600 mm horizontal centres and timber framing studs / battens / noggins should be positioned horizontally at floor and ceiling level and at max. 1200 mm vertical centres. G If fixing to battens, they should be mechanically fixed to the

wall, and comprise 25 x 47 mm (min.) treated softwood, backed with a strip of damp proof course (DPC). G Where insulation board joints are unsupported by the

timber framing studs / battens, timber noggins should be installed.

Plaster / adhesive dab Kingspan Kooltherm® K17 Insulated Plasterboard

G Each insulation board should lap timber framing studs /

battens / noggins by 19 mm (min.) at board joints.

Figure 8 – Internal corner detail

G Boards of Kingspan Kooltherm® K12 Framing Board

should be temporarily fixed / nailed to timber framing studs / battens.

G A 5 mm packer should be used at the base of the wall to

G Plasterboard tape should be employed at all board joints,

provide a level surface from which to build up the boards.

and a plaster skim finish applied.

G The packer should be replaced with a flexible urethane /

G The skimming should be carried out in accordance with

acoustic sealant prior to skirting being fitted (see Figure 9).

the specified plaster manufacturer’s instructions, particularly in relation to the need to allow thorough drying of the plaster prior to decoration.

Kingspan Kooltherm® K17 Insulated Plasterboard

General Cutting G Cutting should be carried out either by using a fine toothed saw, or by using a sharp knife to cut through the insulation and paper backing of the plasterboard, then snapping the sheet face down over a straight edge and cutting the paper facing of the plasterboard on the other side.

Skirting board Flexible sealant

Figure 9 – Packer and skirting detail

Window / Door Reveals & Soffit Details

G Ensure accurate trimming to achieve close butting joints

G Fixing should employ the same method as is used for the

and continuity of insulation.

plain wall areas. G The use of a thinner sheet of Kingspan Kooltherm® K17

Availability G Kingspan Kooltherm® K17 Insulated Plasterboard is available through specialist insulation distributors and selected builders’ merchants throughout the UK and Ireland.

Insulated Plasterboard at reveals may be necessary (see Figure 10). G Where adhesives are employed at openings, strips of

insulated plasterboard should be temporarily supported. Packaging and Storage G The polyethylene packaging of Kingspan Insulation products, which is recyclable, should not be considered adequate for outdoor protection.

Window sill

Double glazed window unit

G Ideally sheets should be stored inside a building.

If, however, temporary outdoor storage cannot be avoided, then the sheets should be stacked flat on a level base, clear of the ground, and completely protected from inclement weather by use of an opaque polythene sheet or weatherproof tarpaulin. Sheets that have been allowed to get wet should not be used. Kingspan Kooltherm® K17 Insulated Plasterboard

Health and Safety G Kingspan Insulation products are chemically inert and safe to use.

Figure 10 – Insulated reveal and external corner

Finishing G To avoid air leakage, any penetrations through the

insulation (electrical sockets, plumbing and wiring etc) should be sealed with vapour resistant mastic sealant.

A Safety Information Data Sheet for this product is available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety.

Warning – do not stand on or otherwise support your weight on this product unless it is fully supported by a load bearing surface.

G Any remaining gaps between boards / sheets of insulation

should also be filled with expanding urethane sealant. G Tapered edged boards allow the employment of standard

dry–lining techniques.

Product Details The Front Facing

Compressive Strength

The front facing of Kingspan Kooltherm® K17 Insulated Plasterboard is a tapered edge gypsum based plasterboard which readily accepts dry–jointing materials and plaster skim.

The compressive strength of Kingspan Kooltherm® K17 Insulated Plasterboard typically exceeds 100 kPa at 10% compression, when tested to BS / I.S. EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

The Core The core of Kingspan Kooltherm® K17 Insulated Plasterboard is a premium performance rigid thermoset modified resin insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Water Vapour Resistance Adjusted for the effect of board joints, non–plasterboard component of the product typically achieves a resistance far greater than 100 MN.s/g, when tested in accordance with BS EN 12086: 1997 / I.S. EN 12086: 1998 (Thermal insulating products for building applications. Determination of water vapour transmission properties). For the purposes of calculation of condensation risk, the resistivity of the plasterboard component of the product should be taken as 50 MN.s/g.m.

The Reverse Face The reverse facing of Kingspan Kooltherm® K17 Insulated Plasterboard is a glass tissue based facing, autohesively bonded to the insulation core during manufacture.

Durability Standards and Approvals

If correctly installed, Kingspan Kooltherm® K17 Insulated Plasterboard can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Kingspan Kooltherm® K17 Insulated Plasterboard is manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

The use of Kingspan Kooltherm® K17 Insulated Plasterboard, produced at Kingspan Insulation’s Castleblayney manufacturing facility, is covered by NSAI Agrément Certificate 09/0329.

Standard Dimensions

The insulation core and facings used in the manufacture of Kingspan Kooltherm® K17 Insulated Plasterboard resist attack by mould and microbial growth and do not provide any food value to vermin.

Kingspan Kooltherm K17 Insulated Plasterboard is available in the following standard size: ®

Nominal Dimension Length Width Plasterboard Thickness Insulant Thickness

Availability (m) (m) (mm) (mm)

2.4 1.2 12.5 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Fire Performance

Kingspan Kooltherm® K17 Insulated Plasterboard, and its rigid thermoset insulation core, are Class 0, as defined by the Building Regulations. The rigid thermoset insulation core of Kingspan Kooltherm® K17 Insulated Plasterboard, when subjected to the British Standard fire test specified in the table below, has achieved the result shown. Test

Result

BS 5111–1: 1974 (Smoke Obscuration)

< 5% (Negligible smoke obscuration)

Thermal Conductivity The thermal conductivity (λ–value) of the plasterboard component of Kingspan Kooltherm® K17 Insulated Plasterboard is 0.19 W/m.K. The thermal conductivity (λ–value) of the insulation core of Kingspan Kooltherm® K17 Insulated Plasterboard is: 0.023 W/m.K (insulant thickness 15–24); 0.021 W/m.K (insulant thickness 25–44 mm); and 0.020 W/m.K (insulant thickness ≥ 45 mm).

Further details of the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

Thermal Resistance Thermal resistance (R–value) varies with the thickness of each component. It is calculated by dividing the thickness of each component (expressed in metres) by its thermal conductivity, followed by adding the resulting figures together. The sum is rounded down to the nearest 0.05 (m2.K/W). *Product Thickness (mm)

Thermal Resistance (m2.K/W)

32.5 37.5 42.5 47.5 52.5 57.5 62.5 67.5 72.5 82.5 87.5 92.5

0.90 1.25 1.45 1.70 1.95 2.30 2.55 2.80 3.05 3.55 3.80 4.05

* Product thickness = insulation thickness + 12.5 mm plasterboard. NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 384 – Fax: +44 (0) 1544 387 484 – email: literature@kingspaninsulation.co.uk – www.kingspaninsulation.co.uk/literature

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie – www.kingspaninsulation.ie/literature

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd is a member of: The National Insulation Association (NIA)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Kingspan, Kooltherm, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK, Ireland and other countries. All rights reserved. Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456. Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Insulation CI/Sfb

(27.9)

Fifth Issue

Rn7

March 2011

K18 Insulated Plasterboard INSULATED PLASTERBOARD FOR MECHANICALLY FIXED DRY–LINING

Premium performance rigid thermoset insulation – thermal conductivities as low as 0.020 W/m.K

Class 0 fire rating

Class 0 fire rated insulation core

Negligible smoke obscuration

Insulation, dry–lining and vapour control in one board

Allows quick response heating

Unaffected by air infiltration

G G

Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP and low GWP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

Solid Masonry Walls

Solid Brickwork Solid brickwork wall

Timber battens

These examples are based on the use of 3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard mechanically fixed to both 25 x 47 mm treated softwood timber battens and metal furrings.

Strip of damp proof course (if there is a risk of moisture penetration)

5 mm packer (see ‘Sitework – Corner & Skirting Details’)

NB When calculating U–values to BS / I.S. EN ISO 6946: 2007, the type of mechanical fixing used may change the thickness of insulation required. The use of carbons steel fasteners of cross sectional area 4 mm2 has been assumed at a density of 16.7 per m2.

3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard

Figure 1 U–values (W/m2.K) for Various Product Thicknesses of Kingspan Kooltherm® K18 Insulated Plasterboard and Different Fixing Methods

NB For the purposes of these calculations the standard of workmanship has been assumed good, and therefore the correction factor for air gaps has been ignored. NB The figures quoted are for guidance only. A detailed U–value calculation and a condensation risk analysis should be completed for each project.

Product Thickness* (mm)

Brickwork Thickness 102.5 mm Timber Battens at 600 mm centres

57.5 62.5 67.5 72.5 82.5 87.5 92.5 102.5 112.5 122.5

62.5 67.5 72.5 82.5 87.5 92.5 102.5 112.5 122.5

* Excluding Change of Use and Material Alterations.

0.29 0.28 0.25 0.23 0.22 0.20 0.19 0.17 Metal Furrings at 600 mm centres

0.29 0.26 0.24 0.23 0.21 0.19 0.18

* Product thickness = insulant thickness + 12.5 mm plasterboard.

215 mm

0.30 0.28 0.27 0.24 0.23 0.22 0.20 0.18 0.17

0.30 0.28 0.25 0.23 0.22 0.20 0.19 0.17

100 mm Blockwork with 10 mm Polymer Render

215 mm Blockwork with 10 mm Polymer Render

Masonry outer leaf

Timber battens

Masonry outer leaf

Timber battens

Strip of damp proof course (if there is a risk of moisture penetration)

5 mm packer (see ‘Sitework – Corner & Skirting Details’)

Strip of damp proof course (if there is a risk of moisture penetration)

5 mm packer (see ‘Sitework – Corner & Skirting Details’)

3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard

Figure 2

3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard

Figure 3

U–values (W/m2.K) for Various Product Thicknesses of Kingspan Kooltherm® K18 Insulated Plasterboard and Different Fixing Methods Blockwork Density and λ−value (W/m.K)

Product Thickness* (mm)

Dense (1.13)

Medium Lightweight Aerated (0.51) (0.15)** (0.11)**

Timber Battens at 600 mm centres

37.5 42.5 47.5 52.5 57.5 62.5 72.5 82.5 87.5 92.5 102.5 112.5 122.5 42.5 47.5 52.5 57.5 62.5 72.5 82.5 87.5 92.5 102.5 112.5 122.5

0.35 0.33 0.29 0.25 0.24 0.23 0.21 0.19 0.18

0.34 0.32 0.28 0.25 0.23 0.22 0.20 0.19 0.17

0.34 0.34 0.32 0.32 0.30 0.33 0.32 0.29 0.28 0.31 0.30 0.27 0.26 0.27 0.27 0.24 0.23 0.24 0.24 0.22 0.21 0.23 0.23 0.21 0.20 0.22 0.22 0.20 0.19 0.20 0.20 0.18 0.18 0.18 0.18 0.17 0.16 0.17 0.17 0.16 0.15 Metal Furrings at 600 mm centres

0.33 0.30 0.28 0.25 0.23 0.22 0.21 0.19 0.17 0.16

Thin Joint Aerated (0.11)***

32.5 37.5 42.5 47.5 52.5 57.5 62.5 72.5 82.5 87.5 92.5 102.5 112.5 122.5

0.34 0.32 0.30 0.27 0.26 0.23 0.21 0.20 0.19 0.18 0.16 0.15

0.34 0.31 0.29 0.27 0.24 0.22 0.21 0.20 0.18 0.17 0.16

0.33 0.31 0.29 0.27 0.24 0.22 0.21 0.20 0.18 0.17 0.16

32.5 37.5 42.5 47.5 52.5 57.5 62.5 72.5 82.5 87.5 92.5 102.5 112.5 122.5

Dense (1.13)

Medium Lightweight Aerated (0.51) (0.15)** (0.11)**

Timber Battens at 600 mm centres 0.34 0.30 0.32 0.28 0.30 0.27 0.28 0.25 0.33 0.26 0.24 0.32 0.30 0.24 0.22 0.30 0.28 0.23 0.21 0.27 0.25 0.21 0.20 0.24 0.23 0.19 0.18 0.23 0.22 0.18 0.17 0.22 0.21 0.18 0.17 0.20 0.19 0.16 0.15 0.18 0.17 0.15 0.14 0.17 0.16 0.14 0.14 Metal Furrings at 600 mm centres 0.32 0.33 0.30 0.31 0.28 0.29 0.26 0.35 0.27 0.25 0.34 0.32 0.25 0.23 0.32 0.30 0.24 0.22 0.28 0.26 0.22 0.20 0.25 0.24 0.20 0.18 0.23 0.22 0.19 0.18 0.22 0.21 0.18 0.17 0.20 0.19 0.17 0.16 0.19 0.18 0.16 0.15 0.17 0,17 0.15 0.14

Thin Joint Aerated (0.11)***

0.30 0.28 0.26 0.25 0.24 0.22 0.21 0.19 0.18 0.17 0.16 0.15 0.14 0.14 0.31 0.29 0.27 0.26 0.25 0.23 0.22 0.20 0.18 0.18 0.17 0.16 0.15 0.14

Linear Thermal Bridging at Openings Solid Stonework

Linear thermal bridging describes the heat loss at junctions between elements, where the geometry of the junction means that a building’s primary insulation layer is not continuous or is reduced. This heat loss is represented by the junction’s psi (ψ) value. The ψ-values of all the linear thermal bridges in a building are used to calculate an overall y-value which is used in whole building carbon dioxide emissions calculation software.

Masonry outer leaf Strip of damp proof course (if there is a risk of moisture penetration) Timber battens

5 mm packer (see ‘Sitework – Corner & Skirting Details’)

Accredited Construction Details (England & Wales / Scotland / Northern Ireland) and Acceptable Construction Details (Republic of Ireland), collectively referred to here as ACDs, feature details for walls with insulated dry-lining, with reveals insulated with a material of minimum thermal resistance (R–value) of 0.34 m2.K/W. These constructions have the following ψ-values: 0.50 W/m.K for a steel lintel with a perforated steel base, 0.30 W/m.K for other lintels (including steel lintels), 0.04 W/m.K for a sill and 0.05 W/m.K for a jamb.

3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard

Figure 4 U–values (W/m2.K) for Various Product Thicknesses of Kingspan Kooltherm® K18 Insulated Plasterboard and Different Fixing Methods Product Thickness* (mm)

62.5 67.5 72.5 82.5 87.5 92.5 102.5 112.5 122.5 62.5 67.5 72.5 82.5 87.5 92.5 102.5 112.5 122.5

Thickness of Stonework 300 mm Sandstone**

450 mm Sandstone**

Timber Battens at 600 mm centres

0.29 0.28 0.25 0.23 0.22 0.20 0.19 0.17 Metal Furrings at 600 mm centres

0.29 0.27 0.24 0.23 0.22 0.20 0.18 0.17

0.31 0.29 0.26 0.24 0.23 0.21 0.19 0.18

0.30 0.28 0.25 0.24 0.23 0.21 0.19 0.17

Adhering to these constructions, entitles a designer to use a default ψ-value in whole building carbon dioxide emissions calculation software. ACDs are specifically targeted at new build constructions but, where applicable, they are also considered best practice for refurbishment. Reveals should be designed to accommodate the 32.5 mm of Kingspan Kooltherm® K18 Insulated Plasterboard required to achieve an R-value of 0.34 m2.K/W, and the depth of fixing system and finishings (see Sitework – Figure 9).

* Product thickness = insulant thickness + 12.5 mm plasterboard. ** Calculations assume sandstone stonework of λ–value (2.30 W/m.K).

Design Considerations Environmental Impact & Responsible Sourcing

NBS Specifications

Green Guide Rating An Ecoprofile, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, has been created for the insulation component of Kingspan Kooltherm® K18 Insulated Plasterboard produced at Kingspan Insulation’s Pembridge manufacturing facility. The BRE has assigned the product a 2008 Green Guide Summary Rating of A+.

Details also available in NBS Plus. NBS users should refer to clause(s): K10 145, K10 155, K10 165, K10 175, K10 205, K10 415 (Standard and Intermediate) K10 15, K10 35, K10 41 (Minor Works)

Design Standards BS 8212: 1995 (Code of practice for dry lining and partitioning using gypsum plasterboard) should be considered.

Fixing Methods

Environmental Profiles Scheme Certificate Number ENP 410

Kingspan Kooltherm® K18 Insulated Plasterboard can be installed utilising mechanical fixing techniques only.

Responsible Sourcing Kingspan Kooltherm® K18 Insulated Plasterboard produced at Kingspan Insulation's Pembridge and Castleblayney manufacturing facilities is manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer component of the product produced at these facilities is also manufactured under a management system certified to BS EN ISO 14001: 2004.

Kingspan Kooltherm® K17 Insulated Plasterboard should be used for dot and dab bonding using plaster, and proprietary, adhesives.

Limitations Kingspan Kooltherm® K18 Insulated Plasterboard has a gypsum plasterboard face. It should, therefore, not be used to isolate dampness, nor be used in continuously damp or humid conditions.

Sustainability & Responsibility

Fire Stops

Current Building Regulations / Standards should be considered with regard to the requirements for and provision of fire stops.

Water Vapour Control / Condensation Consideration should be given to the risk of condensation, when designing thermal elements.

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

When internally lining a construction with insulation, condensation can be controlled by ensuring there is a layer of high vapour resistance on the internal surface of the construction. Kingspan Kooltherm® K18 Insulated Plasterboard contains an integral vapour control layer and, when installed correctly, with appropriate detailing at joints between sheets, penetrations and wall perimeters, can provide the necessary vapour resistance. If required, the vapour resistance of the wall lining can be increased by the application of two coats of Gyproc Drywall Sealer.

Specification Clause Kingspan Kooltherm® K18 Insulated Plasterboard should be described in specifications as:– The wall dry-lining insulation shall be Kingspan Kooltherm® K18 Insulated Plasterboard____ mm thick: comprising a premium performance rigid thermoset insulation core with 12.5 mm plasterboard bonded to its front surface and a low emissivity composite foil facing on its reverse surface. The product shall be manufactured: with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP); under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them.

Sitework Preparation G The ceiling lining should be in position before wall

To Metal Framing Systems G Because metal framing systems are proprietary, sitework guidance should be sought from the framing system manufacturer.

lining commences. G Wall mounted fittings such as electrical sockets

should be fitted so as to take into account the additional wall thickness.

G However, in the absence of any other guidance, the

G On existing constructions all surfaces should be clean, dry

instructions laid out below may be followed. G The metal framing should be installed as a separate

and free of loose or flaking materials. Wallpaper should be stripped and surface mounted fittings removed.

structure, independent from the masonry or concrete wall, to provide a vertical and flat base for the sheets of insulated plasterboard.

Mechanical Fixing

G The framing should be set at a maximum of 600 mm

To Timber Framing Studs / Battens G This method may be used on timber frame constructions or on masonry walls that will support and retain battens and associated fixings.

centres, and to coincide with the long edges, and centre lines, of the sheets of insulated plasterboard. G Short lengths of metal framing should be fixed horizontally

G Vertical timber framing studs / battens should be set at

between the vertical pieces at skirting level, just below the ceiling or soffit level, and at max. 1200 mm vertical centres.

maximum 600 mm horizontal centres, and timber framing studs / battens / noggins should be positioned horizontally at floor and ceiling level and at max. 1200 mm vertical centres.

G Short lengths of metal framing should also be used as

noggins where board joints between sheets are unsupported.

G If fixing to battens, they should be mechanically fixed to the

G Sheets of Kingspan Kooltherm速 K18 Insulated

wall, and comprise 25 x 47 mm (min.) treated softwood, backed with a strip of damp proof course (DPC).

Plasterboard should be fixed using either drywall screws at 300 mm centres, or self drilling and tapping, countersunk, zinc coated screws placed at 150 mm centres.

G Where joints between sheets of insulated plasterboard are

G Fixings should be located no less than 10 mm from the

unsupported by the timber framing studs / battens, timber noggins should be installed.

edges of the sheet.

G Each sheet of insulated plasterboard should lap timber

G Fixings should be driven straight, with the heads

framing studs / battens / noggins by 19 mm (min.) at sheet joints.

embedded just below the surface of the plasterboard. G Care should be taken not to overdrive screws.

G Sheets of Kingspan Kooltherm速 K18 Insulated

Direct to Masonry Substrates G This installation method is suitable for rendered or cavity walls.

Plasterboard should be fixed using either drywall screws at 300 mm centres, or large headed galvanised clout nails at 150 mm centres.

G The wall should be sound, dry and flat (as surface

G When installing sheets onto timber battens, fixings should

irregularities may impede fixing of the board).

be located no less than 10 mm from the edges of the sheets, and be long enough to allow minimum 22.5 mm penetration of the timber. Fixings should not penetrate through the battens.

G The board should be fully restrained using mechanical

fixings. G The type and length of mechanical fixing required will

G When installing sheets onto timber frame studs, fixings

depend on the type of masonry substrate and the the thickness of Kingspan Kooltherm速 K18 Insulated Plasterboard.

should be located no less than 10 mm from the edges of the sheets, and be long enough to allow a minimum 25 mm penetration of the timber.

For details on fixings refer to:

G Fixings should be driven straight, with the heads

embedded just below the surface of the plasterboard. G Care should be taken not to overdrive nails / screws.

Ejot UK Limited www.ejot.co.uk

+44 (0) 1977 687 040

MAK Fasteners www.makfasteners.com

+353 (0) 1 451 99 00

Tech Fasteners www.techfasteners.ie

+353 (0) 1 457 33 00

G Fixings should not overlap board edges. 6

Fixing Heavy Internal Fittings G Suitable mechanical fixings should be used for heavy

To Timber Joists or Rafters G Sheets of Kingspan Kooltherm® K18 Insulated Plasterboard may be used to line ceilings (see Figure 5).

internal fittings (kitchen units, shelving etc), to ensure the load is applied direct to the supporting wall and not to the Kingspan Kooltherm® K18 Insulated Plasterboard. For details on fixings refer to: Tiger Fixings www.tigerfixings.com

+44 (0) 845 603 8877

MAK Fasteners www.makfasteners.com

+353 (0) 1 451 99 00

Tech Fasteners www.techfasteners.ie

+353 (0) 1 457 33 00

G Alternatively, where there are to be extensive heavy

Kingspan Kooltherm® K7 Pitched Roof Board

internal fittings, the construction outlined in Figure 6 can be adopted.

3 mm skim coated Kingspan Kooltherm® K18 Insulated Plasterboard under rafters

Figure 5 – Mechanically fixed to timber rafters with Kingspan Kooltherm® K7 Pitched Roof Board between rafters

Masonry substrate 25 x 47 mm timber batten

G Sheets must always be placed with the long edge

Strip of damp proof course (if there is a risk of moisture penetration)

running across the joists or rafters, and all edges must be supported. G Where joints between sheets of insulated plasterboard are

unsupported by the timber joists / rafters, timber noggins should be installed.

Kingspan Kooltherm® K12 Framing Board

G Each sheet of insulated plasterboard should lap joists /

rafters / noggins by 19 mm (min.) at sheet joints.

18 mm plywood

G Sheets should be fixed using either drywall screws at

3 mm skim coated 12.5 mm plasterboard

230 mm centres, or large–headed galvanized clout nails placed at 150 mm centres.

5 mm packer (see ‘Sitework – Corner & Skirting Details’)

G Fixings should be located no less than 10 mm from the

Figure 6

edges of the sheet, and be long enough to allow a minimum 25 mm penetration of the timber.

G Vertical timber framing studs / battens should be set at

G Fixings should be driven straight, with the heads

maximum 600 mm horizontal centres and timber framing studs / battens / noggins should be positioned horizontally at floor and ceiling level and at max. 1200 mm vertical centres.

embedded just below the surface of the plasterboard. G Care should be taken not to overdrive nails / screws.

G If fixing to battens, they should be mechanically fixed to the

wall, and comprise 25 x 47 mm (min.) treated softwood, backed with a strip of damp proof course (DPC). G Where insulation board joints are unsupported by the

timber framing studs / battens, timber noggins should be installed.

Corner & Skirting Details G For internal and external corners, sheets should be cut and

G Each insulation board should lap timber framing studs /

battens / noggins by 19 mm (min.) at board joints.

rebated to allow a plasterboard / plasterboard joint at the angle (see Figures 7 & 9).

G Boards of Kingspan Kooltherm® K12 Framing Board

G For internal and external corners, ensure sheets are lightly

should be temporarily fixed / nailed to timber framing studs / battens.

butted and air gaps minimised to reduce the risk of cold bridging (see Figures 7 & 9).

G 18 mm plywood should then be fixed through insulation

boards to the timber framing studs / battens, using either drywall screws at 300 mm centres, or large headed galvanised clout nails at 150 mm centres.

Blockwork

G When fixing plywood through the insulation boards onto

Timber batten

timber frame, fixings should be located no less than 10 mm from the edges of the sheets, and be long enough to allow a minimum 25 mm penetration of the timber.

Kingspan Kooltherm® K18 Insulated Plasterboard

G Fixings should be driven straight, with the heads

embedded just below the surface of the plywood.

Figure 7 – Internal corner detail

G 12.5 mm plasterboard is then fixed to the plywood, using

G A 5 mm packer should be used at the base of the wall to

either drywall screws at 300 mm centres, or large headed galvanised clout nails at 150 mm centres.

provide a level surface from which to build up the boards. G The packer should be replaced with a flexible urethane /

G Fixings should be driven straight, with the heads

acoustic sealant prior to skirting being fitted (see Figure 8).

embedded just below the surface of the plasterboard. G Care should be taken not to overdrive nails / screws. G Heavy fittings can be fixed through the plasterboard

Kingspan Kooltherm® K18 Insulated Plasterboard

directly to the plywood.

Blockwork Timber batten Skirting board Flexible sealant

Figure 8 – Packer and skirting detail

Window / Door Reveals & Soffit Details

General

G Fixing should employ the same method as is used for the

Cutting G Cutting should be carried out either by using a fine toothed saw, or by using a sharp knife to cut through the insulation and paper backing of the plasterboard, then snapping the sheet face down over a straight edge and cutting the paper facing of the plasterboard on the other side.

plain wall areas. G The use of a thinner sheet of Kingspan Kooltherm® K18

Insulated Plasterboard at reveals may be necessary (see Figure 9).

G Ensure accurate trimming to achieve close butting joints

Window sill

and continuity of insulation. Double glazed window unit

Availability G Kingspan Kooltherm® K18 Insulated Plasterboard is available through specialist insulation distributors and selected builders’ merchants throughout the UK and Ireland. Packaging and Storage G The polyethylene packaging of Kingspan Insulation products, which is recyclable, should not be considered adequate for outdoor protection.

Kingspan Kooltherm® K18 Insulated Plasterboard

G Ideally sheets should be stored inside a building.

Figure 9 – Insulated reveal and external corner

If, however, temporary outdoor storage cannot be avoided then the sheets should be stacked flat on a level base, clear of the ground, and completely protected from inclement weather by use of an opaque polythene sheet or weatherproof tarpaulin. Sheets that have been allowed to get wet should not be used.

Finishing G To avoid air leakage, any penetrations through the

insulation (electrical sockets, plumbing and wiring etc) should be sealed with vapour resistant mastic sealant. G Any remaining gaps between boards / sheets of insulation

Health and Safety G Kingspan Insulation products are chemically inert and safe to use.

should be filled with expanding urethane sealant. G Tapered edged boards allow the employment of standard

G A Safety Information Data Sheet for this product is

dry–lining techniques. G Plasterboard tape should be employed at all board joints,

available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety.

and a plaster skim finish applied. G The skimming should be carried out in accordance with

the specified plaster manufacturer’s instructions, particularly in relation to the need to allow thorough drying of the plaster prior to decoration.

Product Details The Front Facing

Compressive Strength

The front facing of Kingspan Kooltherm® K18 Insulated Plasterboard is a tapered edge gypsum based plasterboard which readily accepts dry–jointing materials and plaster skim.

The compressive strength of Kingspan Kooltherm® K18 Insulated Plasterboard typically exceeds 100 kPa at 10% compression, when tested to BS / I.S. EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

The Core The core of Kingspan Kooltherm® K18 Insulated Plasterboard is a premium performance rigid thermoset modified resin insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).

Water Vapour Resistance Adjusted for the effect of board joints, the non-plasterboard component of the product typically achieves a resistance far greater than 100 MN.s/g, when tested in accordance with BS EN 12086: 1997 / I.S. EN 12086: 1998 (Thermal insulating products for building applications. Determination of water vapour transmission properties). For the purposes of calculation of condensation risk, the resistivity of the plasterboard component of the product should be taken as 50 MN.s/g.m.

The Reverse Face The reverse facing of Kingspan Kooltherm® K18 Insulated Plasterboard is a low emissivity composite foil, autohesively bonded to the insulation core during manufacture. This reflective, low emissivity surface improves the thermal resistance of any unventilated cavity adjacent to the product.

Durability

Standards and Approvals

If correctly installed, Kingspan Kooltherm® K18 Insulated Plasterboard can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

Kingspan Kooltherm® K18 Insulated Plasterboard is manufactured to the highest standards under a management system certified to BS / I.S. EN ISO 9001: 2008 (Quality management systems. Requirements), BS / I.S. EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS / I.S OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

The use of Kingspan Kooltherm® K18 Insulated Plasterboard produced at Kingspan Insulation’s Castleblayney manufacturing facility is covered by NSAI Agrément Certificate 09/0329.

The insulation core and facings used in the manufacture of Kingspan Kooltherm® K18 Insulated Plasterboard resist attack by mould and microbial growth and do not provide any food value to vermin.

Standard Dimensions Kingspan Kooltherm® K18 Insulated Plasterboard is available in the following standard size: Nominal Dimension Length Width Plasterboard Thickness Insulant Thickness

Availability (m) (m) (mm) (mm)

2.4 1.2 12.5 Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Fire Performance

Kingspan Kooltherm® K18 Insulated Plasterboard, when tested with its plasterboard facing innermost, and its rigid thermoset insulation core, are Class 0, as defined by the Building Regulations. The rigid thermoset insulation core of Kingspan Kooltherm® K18 Insulated Plasterboard, when subjected to the British Standard fire test specified in the table below, has achieved the result shown. Test

Result

BS 5111–1: 1974 (Smoke Obscuration)

< 5% (Negligible smoke obscuration)

Thermal Conductivity The thermal conductivity (λ–value) of the plasterboard component of Kingspan Kooltherm® K18 Insulated Plasterboard is 0.19 W/m.K. The thermal conductivity (λ–value) of the insulation core of Kingspan Kooltherm® K18 Insulated Plasterboard is: 0.023 W/m.K (insulant thickness 15–24); 0.021 W/m.K (insulant thickness 25–44 mm); and 0.020 W/m.K (insulant thickness ≥ 45 mm).

Further details of the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

Thermal Resistance (m2.K/W) 0.90 1.25 1.45 1.70 1.95 2.30 2.55 2.80 3.05 3.55 3.80 4.05 4.55 5.05 5.55

* Product thickness = insulation thickness + 12.5 mm plasterboard. NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 384 – Fax: +44 (0) 1544 387 484 – email: literature@kingspaninsulation.co.uk – www.kingspaninsulation.co.uk/literature

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie – www.kingspaninsulation.ie/literature

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd is a member of: The National Insulation Association (NIA)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Insulation CI/Sfb

(13.9)

Rn7

Third Issue

March 2011

Basements INSULATION FOR BASEMENTS

G G

High performance rigid extruded polystyrene insulation – thermal conductivities as low as 0.029 W/m.K High compressive strength Resistant to ground moisture penetration

Unaffected by air infiltration

Easy to handle and install

G G

Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Assumptions

Basement Floors

The U−values in the tables that follow have been calculated, under a management system certified to the BBA Scheme for Assessing the Competency of Persons to Undertake U–value and Condensation Risk Calculations, using the method detailed in BS / I.S. EN ISO 13370: 2007 (Thermal performance of buildings. Heat transfer via the ground. Calculation methods) and using the conventions set out in BR443 (Conventions for U–value calculations). They are valid for the constructions shown in the details immediately above each table. These examples assume that the basement walls are 300 mm thick and the height of the basement walls are 2.5 m.

Basement Insulated with Kingspan Styrozone® N 300 R Kingspan Kooltherm® K8 Cavity Board

Drainage membrane

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Tanking membrane Geotextile membrane

Damp proof membrane lapped minimum 300 mm under the tanking membrane 65 mm floor screed Separation layer

Kingspan Styrozone® N 300 R Damp proof membrane either above or below Kingspan Styrozone® N 300 R

Triangular piece of Kingspan Styrozone® N 300 R

Floor dimensions should be measured between the finished internal surfaces of the external walls. Non–usable heated space such as ducts and stairwells should be included when determining the area of the floor. Unheated spaces outside of the insulated fabric, such as attached garages or porches, should be excluded when determining the area of the floor, but the length of the wall between the heated building and the unheated space should be included when determining the perimeter. The floor dimensions of semi–detached, terraced or other joined premises / dwellings can be taken either as those of the premises / dwelling itself or those of the whole building. Where extensions to existing buildings are under consideration, the floor dimensions should be taken as those of the extension.

Figure 1 U–values (W/m2.K) for Various Thicknesses of Kingspan Styrozone® N 300 R and Floor Perimeter / Area Ratios Insulant Perimeter / Area (m–1) Thickness (mm) 0.3 0.4 0.5 0.6 0.7 0.8 50 60 80 100 120 140 160 180 100 + 100 120 + 100* 120 + 120 140 + 120* 140 + 140 160 + 140* 160 + 160

If the P/A ratio lies between two of the numbers shown in the tables to follow, for a safe estimate, please use the P/A ratio shown that is the next highest i.e. for 0.57 use 0.6. NB The figures quoted are for guidance only. A detailed U–value calculation should be completed for each individual project. NB For the purposes of these calculations, using the method as detailed in BS / I.S. EN ISO 13370: 2007, the soil has been assumed to be sand or gravel, the wall insulation is assumed to overlap the floor insulation by minimum 150 / 225* mm, and the standard of workmanship has been assumed good and therefore the correction factor for air gaps has been ignored. NB If your construction is different from those specified and / or to gain a comprehensive U−value calculation for your project please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover). * 150 mm applies to the UK and 225 mm to the Republic of Ireland.

0.24 0.22 0.19 0.18 0.16 0.15 0.14 0.13 0.12 0.11 0.11 0.10 0.10 0.09

0.23 0.21 0.19 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.11 0.10 0.09

0.25 0.22 0.20 0.18 0.16 0.16 0.14 0.13 0.12 0.11 0.11 0.10 0.10

0.23 0.20 0.18 0.17 0.16 0.14 0.13 0.12 0.12 0.11 0.10 0.10

0.23 0.21 0.19 0.17 0.16 0.14 0.13 0.13 0.12 0.11 0.10 0.10

0.24 0.21 0.19 0.17 0.17 0.15 0.14 0.13 0.12 0.11 0.11 0.10

* Where multiple layers of insulation of different thicknesses are used, the thickest layer should be installed as the outermost layer in the construction.

U–value Table Key Where an is shown, the U–value is higher than the worst of the maximum new build area weighted average U–values allowed by the 2010 Editions of Approved Documents L to the Building Regulations (England & Wales), the 2010 Editions of Technical Handbooks Section 6 (Scotland), the 2006 Editions of Technical Booklets F (Northern Ireland), or the 2008 Editions of Technical Guidance Documents L* (Republic of Ireland). * Excluding Change of Use and Material Alterations.

Basement Walls Calculations for basement walls are based on the height of the basement, the P/A ratio of the basement floor and the thermal performance of the basement floor. Once all three variables have been obtained, please contact the Kingspan Insulation Technical Service Department (see rear cover) for the U–values to be calculated.

Basement Insulated with Kingspan Styrozone® H 350 R Kingspan Kooltherm® K8 Cavity Board

Drainage membrane

Tanking membrane Geotextile membrane

Damp proof membrane lapped minimum 300 mm under the tanking membrane 65 mm floor screed Separation layer

Kingspan Styrozone® H 350 R Damp proof membrane either above or below Kingspan Styrozone® H 350 R

Triangular piece of Kingspan Styrozone® H 350 R

Figure 2 U–values (W/m2.K) for Various Thicknesses of Kingspan Styrozone® H 350 R and Floor Perimeter / Area Ratios Insulant Perimeter / Area (m–1) Thickness (mm) 0.3 0.4 0.5 0.6 0.7 0.8 40 50 60 80 100 120 140 160 100 + 80* 100 + 100 120 + 100* 120 + 120

0.24 0.22 0.19 0.17 0.15 0.14 0.13 0.11 0.11 0.10 0.09

0.24 0.20 0.18 0.16 0.15 0.14 0.12 0.11 0.10 0.10

0.25 0.21 0.19 0.17 0.16 0.14 0.12 0.11 0.11 0.10

0.22 0.19 0.17 0.16 0.15 0.13 0.12 0.11 0.10

0.23 0.20 0.17 0.16 0.15 0.13 0.12 0.11 0.10

0.23 0.20 0.18 0.16 0.15 0.13 0.12 0.11 0.10

* Where multiple layers of insulation of different thicknesses are used, the thickest layer should be installed as the outermost layer in the construction.

Design Considerations Sustainability & Responsibility

Design Standards

Consideration should be given to the recommendations of BS 8102: 1990 (Code of practice for protection of structures against water from the ground), BS 8215: 1991 (Code of practice for design and installation of damp proof courses in masonry construction) and the information given in Building Research Establishment Digest 104 (Floor Screeds).

A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

Waterproofing BS 8102: 1990 (Code of practice for protection of structures against water from the ground) provides guidance on protection of basements against ground water. The level of protection needed by a new basement in housing, offices, restaurants, leisure centres etc. is Grade 3 (refer to BS 8102 for a full list). Grade 3 protection consists of one of the following waterproofing options.

Specification Clause Kingspan Styrozone® should be described in specification as:– The basement wall / floor insulation shall be Kingspan Styrozone® (insert grade) _____ mm thick: comprising high performance rigid extruded polystyrene insulation. The product shall be manufactured, with a blowing agent that has zero Ozone Depletion Potential (ODP), under a management system certified to EN ISO 9001: 2000, and shall be installed in accordance with the instructions issued by Kingspan Insulation Limited.

Tanking System – A continuous waterproofing membrane surrounding the exterior of the basement structure, preventing ground water from penetrating the basement construction. Available in mastic asphalt tanking, cementitious renders, self–adhesive membranes and liquid applied membranes (see Figure 1 & 2).

NBS Specifications

Waterproofed Concrete – A continuous waterproofed concrete, mixed in accordance with BS 8007: 1987 (Code of practice for design of concrete structures for retaining aqueous liquids). The waterproofed concrete is used as the exterior of the construction to prevent water penetration.

Details also available in NBS Plus. NBS users should refer to clause(s): J30 330 (Standard and Intermediate) J40 380 (Minor Works)

Product Selection

Drained Cavity & DPM – An effective drainage system where moisture that seeps through a monolithic wall, into the cavity is collected and channelled away under the floor. Using a DPM in conjunction with the drained cavity prevents any water penetrating the structure.

The high compressive strength of Kingspan Styrozone makes it particularly suitable for use where floor loads are to be severe. ®

Consideration must be given to which Kingspan Styrozone® product is most appropriate for the required application. A table of the key distinguishing features is shown below. Thermal Conductivity (W/m.K)

Density (kg/m3)

Compressive Strength at 10% compression (kPa)

0.029–0.031 0.035–0.040

30 30

300 300

Product Styrozone® H 350 R Styrozone® N 300 R

Sitework Drainage G Water collecting at the base of the Kingspan Styrozone®

strip of insulation board should be level with the top of the floor screed and the bottom should be level with the bottom of the horizontal floor insulation, and closely butted up to it.

boards must be drained away by filter drains located around the perimeter of the basement.

G To construct a filter drain, a perforated / porous drainage

G If the damp proof membrane is laid directly onto the

pipe should be positioned 200 mm below the floor level of the basement and should be surrounded by a free draining aggregate e.g. course gravel.

hardcore below the insulation boards, the boards should be overlaid with a polythene sheet (not less than 125 micron / 500 gauge), to prevent the wet concrete penetrating the joints between the boards, and to act as a vapour control layer. Ensure the polythene sheet has 150 mm overlaps, taped at the joints, and is turned up 100 mm at the walls.

G A geotextile membrane must be placed around the gravel

to prevent fines blocking the drain.

G Depending upon ground conditions, drains may be

G The subsequent installation of the concrete slab and screed

connected to surface drainage systems or soakaways.

or other flooring material is carried out in a manner similar to that for an un−insulated floor.

Basement Floors

G The concrete slab and screed should be allowed to dry out

Installation Below a Floor Slab G The site should be prepared and foundations, where appropriate, built to damp proof course (DPC) level.

prior to the the installation of the floor finish. Installation Below a Floor Screed G Concrete slabs should be allowed to dry out fully prior to the installation of the insulation boards (average 1 day per mm of slab thickness).

G A thin sand blinding may be used to achieve a continuous

level surface free from projections over rolled hardcore.

G The damp proof membrane (minimum 300 micron / 1200

G The surface of the slab should be smooth, flat and free from

gauge polythene) can be laid with joints well lapped and folded, to prevent the passage of ground water, either directly over the well compacted hardcore prior to laying the insulation boards, or over the insulation boards.

projections. Rough cast slabs should be levelled using a thin sand blinding to ensure boards are continuously supported.

G The damp proof membrane (minimum 300 micron / 1200

G The membrane should be laid under the basement wall,

gauge polythene) should be laid with joints well lapped and folded, to prevent the passage of ground water, either directly over the floor slab prior to laying the insulation boards, or over the insulation boards.

and under the triangular shaped piece of insulation placed between the concrete slab and the exterior of the basement wall, and lapped by 300 mm under the basement wall tanking membrane.

G The membrane should be laid under the basement wall,

G Insulation boards should always be loose–laid

and under the triangular shaped piece of insulation placed between the concrete slab and the exterior of the basement wall, and lapped by 300 mm under the basement wall tanking membrane.

break–bonded, with the joints lightly butted.

G If two layers of insulation are required, they should be

G Insulation boards should always be loose–laid

horizontally offset relative to each other so that, as far as possible, the board joints in the two adjacent layers do not coincide with each other (see Figure 3).

break–bonded, with the joints lightly butted.

G If two layers of insulation are required, they should be

horizontally offset relative to each other so that, as far as possible, the board joints in the two adjacent layers do not coincide with each other (see Figure 3).

First insulation layer

G A strip of rigid insulation board (minimum 20 mm thick)

should be placed vertically around the perimeter of the floor slab in order to prevent cold bridging. The top of the strip of insulation board should be level with the top of the floor screed and the bottom should be level with the bottom of the horizontal floor insulation, and closely butted up to it.

G Insulation boards should be overlaid with a polythene sheet

(not less than 125 micron / 500 gauge), to prevent the wet screed penetrating the joints between the boards, and to act as a vapour control layer. Ensure the polythene sheet has 150 mm overlaps, taped at the joints, and is turned up 100 mm at the walls.

Second insulation layer, if required, offset relative to first.

Figure 3 – Offsetting of Multiple Insulation Layers G A strip of rigid insulation board (minimum 20 mm thick)

G Use sand and cement screed laid to a minimum thickness of

should be placed vertically around the perimeter of the floor slab in order to prevent cold bridging. The top of the

65 mm for domestic construction and 75 mm elsewhere. 5

Basement Walls

General

G A triangular shaped piece of Kingspan Styrozone®

Cutting G Cutting should be carried out either by using a fine toothed saw, or by scoring with a sharp knife and snapping the board over a straight edge.

should be placed between the concrete slab and the exterior of the basement wall to create a slope (see Figures 1 & 2) and a platform for the basement wall insulation. G The damp proof membrane should be laid under the

G Ensure accurate trimming to achieve close–butting joints

basement wall and the triangular shaped piece of insulation, and connect with the basement wall tanking membrane in accordance with the tanking membrane manufacturer’s recommendations.

and continuity of insulation. Availability G Kingspan Styrozone® is available through specialist

insulation distributors and selected builders’ merchants throughout the UK, and Ireland.

G A tanking membrane is applied to the external face of the

basement wall, to prevent water entering the basement structure.

Packaging and Storage G The polyethylene packaging of Kingspan Insulation products, which is recyclable, should not be considered adequate for outside protection.

G The insulation board should be installed outside of the

tanking membrane. G A cavity drainage membrane or layer of washed no fines

G Ideally, boards should be stored inside a well ventilated

gravel should be installed outside of the insulation boards.

building. If, however, outside storage cannot be avoided, then the boards should be stacked clear of the ground and covered with a pale pigmented polythene sheet or weatherproof tarpaulin.

G This relieves hydrostatic pressure and channels water to

the foundation drain. G The membrane or gravel should be covered with a

G Kingspan Styrozone® should not be left in the sun covered

geotextile layer to prevent fines from blocking the drainage material.

by either a transparent or a dark plastic sheet, since in both cases, board temperatures can build up to a level hot enough to appreciably alter board dimensions or cause warping.

G The ground around the structure must slope away from

the basement wall to ensure rainwater drains away from the building.

Health and Safety G Kingspan Insulation products are chemically inert and safe to use.

Waterstops G When using reinforced concrete as the main structure

of the basement, waterstops must be installed at the junctions where day joints have been made in the structure to prevent water leakage.

G A report covering the sustainability and responsibility of

Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/safety or www.kingspaninsulation.ie/safety

Refer to: Movement Joints (UK) Ltd www.mjuk.co.uk

+44 (0) 1354 60 79 60

Fosroc Ltd www.fosroc.com

+44 (0) 1827 262 222

Beton Construction Materials Ltd www.betonconmat.co.uk

Warning – do not stand on or otherwise support your weight on this product unless it is fully supported by a load–bearing surface.

+44 (0) 1256 353 146

Wheeled / Foot Traffic G Ensure boards are protected during installation from

wheeled / foot traffic by using scaffold planks or other protective measures.

Product Details Composition

Resistance to Solvents, Fungi & Rodents

Kingspan Styrozone H 350 R is a high performance rigid extruded polystyrene insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and has a smooth, dense skin on both faces.

Kingspan Styrozone® is resistant to most commonly occurring construction materials such as lime, cement, plaster, anhydrous gypsum, solvent–free bituminous compounds, water–based wood preservatives, as well as alcohols, acids and alkalis. Certain organic materials such as solvent–based wood preservatives, coal tar and derivatives (creosote), paint thinners and common solvents (e.g. acetone, ethyl acetate, petrol, toluene and white spirit), will attack Kingspan Styrozone®, resulting in softening, shrinkage and possible dissolution, with a consequent loss of performance.

Kingspan Styrozone® does not provide any food value to vermin and is not normally attractive to them.

Standards and Approvals Kingspan Styrozone® is manufactured to the highest quality standards under a quality control system certified to EN ISO 9001: 2000 (Quality management systems. Requirements).

Maximum Service Temperature

Standard Dimensions

Kingspan Styrozone® should not be brought into direct contact with high temperature heat sources. The maximum service temperature of Kingspan Styrozone® is 75°C.

All products in the Kingspan Styrozone® range are available in the following standard size:

Thermal Properties

Nominal Dimension Length Width Insulant Thickness

(m) (m) (mm)

Edge Profile

The λ–values and R–values detailed below are quoted in accordance with EN 13164: 2008 (Thermal insulation products for buildings – Factory made products of extruded polystyrene (XPS) – Specification).

Availability 1.25 0.6 Refer to local distributor or Kingspan Insulation’s price list for current stock and non–stock sizes Rebated*

Thermal Conductivity The boards achieve a thermal conductivity (λ–value) of − Kingspan Styrozone® H 350 R is: 0.029 W/m.K (insulant thickness ≤ 120 mm); and 0.031 W/m.K (insulant thickness > 120 mm).

*Straight edge boards are available on request.

Compressive Strength The compressive strengths of Kingspan Styrozone® H 350 R and N 300 R typically exceed 300 kPa at 10% compression when tested to EN 826: 1996 (Thermal insulating products for building applications. Determination of compression behaviour).

Kingspan Styrozone® N 300 R is: 0.035 W/m.K (insulant thickness ≤ 80 mm); 0.037 W/m.K (insulant thickness 80 mm); 0.038 W/m.K (insulant thickness 100−160 mm); and 0.040 W/m.K (insulant thickness > 160 mm).

Thermal Expansion The linear thermal expansion coefficient of Kingspan Styrozone® is 0.07 mm/m.K.

Insulant Thickness (mm) 50 60 80 100 120 140 160 180

Absorption of Moisture Kingspan Styrozone® is highly resistant to water absorption. It is very resistant to the passage of water vapour, and unaffected by repeated freeze / thaw cycles.

Durability

Thermal Resistance (m2.K/W) H 350 R N 300 R 1.70 2.05 2.75 3.40 4.10 4.50 5.15 –

– 1.70 2.15 2.60 3.15 3.65 4.20 4.50

NB Multiple layers of insulation are required for higher thermal resistances. NB Refer to local distributor or Kingspan Insulation price list for current stock and non–stock sizes.

If correctly installed, Kingspan Styrozone® can have an indefinite life. Its durability depends on the supporting structure and the conditions of its use.

NB Kingspan Styrozone® may be delivered in packaging bearing alternative product branding.

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: customerservice@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Ireland

Tapered Roofing For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below: UK

– Tel: +44 (0) 1544 387 383 – Fax: +44 (0) 1544 387 483 – email: tapered@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: tapered@kingspaninsulation.ie

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Please contact the Kingspan Insulation Technical Service Department on the numbers below: UK

– Tel: +44 (0) 1544 387 382 – Fax: +44 (0) 1544 387 482 – email: technical@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 975 4297 – Fax: +353 (0) 42 975 4296 – email: technical@kingspaninsulation.ie

General Enquiries For all other enquiries contact Kingspan Insulation on the numbers below: UK

– Tel: +44 (0) 1544 388 601 – Fax: +44 (0) 1544 388 888 – email: info@kingspaninsulation.co.uk

Ireland

– Tel: +353 (0) 42 979 5000 – Fax: +353 (0) 42 975 4299 – email: info@kingspaninsulation.ie

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK Castleblayney, County Monaghan, Ireland

www.kingspaninsulation.co.uk ®

www.kingspaninsulation.ie

Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456. Registered in Ireland, No. 152775. Registered Office: Bree Industrial Estate, Castleblayney, Co. Monaghan, Ireland. VAT IE6550175J.

Insulation CI/Sfb

(31-9)

Second Issue

Kingspan Kingspan

Hn6

October 2011

Cavity Closer & Cavity Closer

INSULATED EXTRUSIONS FOR CLOSING WALL CAVITIES AT OPENINGS ●

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Continuous insulation – maintains a continuous insulated cavity closer around window and door openings Passes one–hour fire test with PVC window and up to 150 mm cavities Passes half-hour fire test with PVC window and up to 300 mm cavities Simplified construction – avoids the need for cut bricks, blocks or special reveal blocks Reduced heat loss – avoids thermal bridging, condensation and mould growth Weather resistant – forms an integral DPC Flexible – can either be built in with frames or used to pre–form openings when frames are fitted later

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Unaffected by air infiltration

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Easy to handle and install

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Non–deleterious material

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Insulation core manufactured with a blowing agent that has zero ODP and low GWP

Low Energy Low Carbon Buildings

Design Considerations Introduction

Typical Design Detail

Kingspan Kooltherm® Cavity Closer is a PVC–U extrusion with a rigid thermoset insulation core, manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP). It is manufactured in thirteen sizes from 50–150 mm. Jointing clips extend the range further by allowing the Kingspan Kooltherm® Cavity Closer sections to be joined to suit cavity widths of up to 300 mm. It is suitable for use with timber, metal or PVC window frames and can also be supplied to order in curved sections.

Masonry inner leaf Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S Window unit Masonry outer leaf Kingspan Kooltherm® K8 Cavity Board

Kingspan Kooltherm® Cavity Closer provides a simple and efficient method of closing cavities around openings in cavity walls. Its rigid thermoset insulation core prevents thermal bridging, and its PVC–U J–section forms a positive damp proof barrier and key for the direct application of plaster. It effectively prevents condensation and mould growth, frequently associated with traditional methods of closing cavities.

Thermal Bridging – Basic Principles

Kingspan Kooltherm® Cavity Closer P L U S is made to order, and comprises Kingspan Kooltherm® Cavity Closer sections, prefabricated into a U-shape, to match specified opening sizes.

Thermal bridging occurs at openings in external walls when the cavities are closed with materials of poor insulating performance.

Kingspan Kooltherm® Cavity Closer P L U S is available for the same range of cavity widths as standard Kingspan Kooltherm® Cavity Closer and helps you to achieve accurate opening sizes.

Specification Clause Kingspan Kooltherm® Cavity Closer should be described in specifications as:– The insulated cavity closer shall be Kingspan Kooltherm® Cavity Closer __*: comprising a one piece, rigid, J-section, PVC–U extrusion, with flange keys for direct plaster application, projecting fixing flange, and premium performance rigid thermoset insulation core. The insulation component of the product shall be manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP). The product shall be manufactured under a management system certified to BS / I.S. EN ISO 9001: 2008, BS / I.S. EN ISO 14001: 2004 and BS / I.S. OHSAS 18001: 2007; by Kingspan Insulation Limited; and installed in accordance with the instructions issued by them.

Heat Loss Paths Around a Typical Window Opening – Traditional Construction

Such thermal bridging can produce problems of condensation and mould growth at the reveals of these openings. Prolonged exposure to condensation will lead to the deterioration of plaster and paintwork.

*Insert product width.

NBS Specifications NBS users should refer to clause: F30 180 (Standard and Intermediate) F30 18 (Minor works)

A Local Drop in the Surface Temperature Around Openings, or ‘Thermal Bridging’, Can Give Rise to Unsightly Mould Growth and Damage to Reveal Finishes.

Accredited Construction Details Background Regulators have recognised the issue of thermal bridging around openings and the significant effect that it can have on both heat loss and building degradation. The route chosen to deal with this issue has been to produce a set of details which are deemed to be of an acceptable standard. These have been published in documents entitled “Accredited Construction Details” and “Accredited Construction Details (Scotland)”.

England & Wales A minimum thermal resistance path through the cavity closer of 0.45 m2.K/W and a minimum overlap of 30 mm between the window frame and the cavity closer are required by the Accredited Construction Details publication in order to gain compliance with the Approved Documents L in England & Wales. A 30 mm overlap between the window frame and the Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S will exceed the minimum thermal resistance path of 0.45 m2.K/W. Scotland Accredited Construction Details (Scotland) shows only a check reveal for compliance with the Technical Handbooks in Scotland. There is no minimum thermal resistance path or overlap as this is not necessary with a check reveal.

Min. 30 mm overlap

Compliant Detail for Scotland Using Kingspan Kooltherm® Cavity Closer

Compliant Detail for England & Wales Using Kingspan Kooltherm® Cavity Closer

Temperatures and Heat Flows from Numerical Modelling of Compliant Detail for Scotland

Temperatures and Heat Flows from Numerical Modelling of Compliant Detail for England & Wales

Design Considerations Compliant Details An infinite variety of constructions can be formed with the use of Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S . The following details illustrate the design flexibility of Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S .

It should be noted however that, although any detail can be used in England and Wales in exposure zones 1 and 2, only a check reveal can be used in England and Wales in exposure zones 3 and 4 and in Scotland (see page 5 left hand column for check reveal detail).

All of the following details comply with the principles outlined in Accredited Construction Details or Accredited Construction Details (Scotland).

Masonry inner leaf

Frame strap fixed to inner leaf

Plaster finish keyed to Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S Min. 30 mm overlap

Kingspan Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer® P L U S

Min. 30 mm overlap

Window unit Masonry outer leaf

Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S at Reveal

Frame Fitted Later

Two Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S sections coupled together with 100 mm sections of Jointing Clip at 300 mm centres

Min. 30 mm overlap Fixing ties engaging Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S and built in as work proceeds

Min. 30 mm overlap DPC

Extra wide cavity

Use of Optional Fixing Tie

Use of Jointing Clip in Wide Cavity

Window frame and cill Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S fixed to outer leaf

Frame strap fixed to inner leaf

Oversailing window board

Min. 30 mm overlap

Masonry inner leaf Masonry outer leaf

Check Reveal

Use at Cill with Flush Reveal & 30 mm Overlap

Masonry outer leaf Masonry inner leaf

Min. 30 mm overlap

Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S

Min. 30 mm overlap

Window unit

DPC

Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S at Head

Use with Sub Cill & Check Reveal

Sitework Selecting a Section ● ●

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The width of cavity to be closed will decide the size of section, or combination of sections to be used. Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S are normally fixed with their flange against the inner leaf as shown.

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The fixing flange should always overlap the inner leaf masonry by 15 mm (min.), be tight to the masonry and securely fixed with a suitable masonry fixing to the masonry through the holes provided in the fixing flange. Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S should fit tightly into the cavity opening and no gaps should be left between the closer and either wall leaf.

Full thickness of plaster over flanges

Outer leaf of masonry

Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S with check reveal

Fixing flange tight to the masonry

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15 mm (min.)

Inner leaf of masonry

An appropriate lintel and damp proof course is incorporated at the head. Where an insulated lintel is used a head closer section will not be required and the jamb sections of closer will butt up against the lintel. If required, a Kingspan Kooltherm® Cavity Closer section can be used at the head where a separate lintel is used for each leaf.

Installation Options ●

Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S with flush reveal

1 install cill, jambs and head closer sections individually as the wall is constructed; or

Basic Installation Principles for New Walls ●

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There are two basic options for the installation of Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S :

2 install Kingspan Kooltherm® Cavity Closer P L U S then construct the wall around the frame.

Kingspan Kooltherm Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S can be built–in as work proceeds. ®

Kingspan Kooltherm® Cavity Closer fixing ties slot into the cavity side of the profile and key into the mortar bed of the outer masonry skin. NB Fixing ties can not be used when two sections are joined back to back.

Installation as Individual Sections

Window Frame Fixing

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For the cill, cut Kingspan Kooltherm® Cavity Closer precisely to the frame width.

1 offer up frame;

For the jambs, the sections should overhang the bottom of the cill Kingspan Kooltherm® Cavity Closer by 50 mm.

2 wedge frame in position; 3 secure frame in position to masonry; and

Cut off the fixing flange as necessary to allow fitting of Kingspan Kooltherm® Cavity Closer into the cavity below the frame. If used at the head of the frame, cut Kingspan Kooltherm® Cavity Closer to extend 50 mm beyond each vertical jamb section.

50 mm

When fixing the window follow the frame fixing procedure:

4 seal frame internally and externally, using compressible sealing tape where necessary.

50 mm

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The Kingspan Kooltherm® Cavity Closer sections are built in as the wall is constructed.

Use in Window / Door Replacement and Refurbishment Procedure

Installation of Kingspan Kooltherm Cavity Closer P L U S

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Kingspan Kooltherm Cavity Closer P L U S comprises sections of Kingspan Kooltherm® Cavity Closer factory pre–formed into a frame and is designed specifically to reduce the labour and time involved in installing individual sections. ®

●

When the wall reaches cill level the pre–formed frame is seated in the cavity and propped vertical. The wall is built around the jamb sections. Kingspan Kooltherm® Cavity Closer fixing ties are clipped into the section and bedded into the mortar joints.

Cut out and clear away any masonry that closes the cavity. Kingspan Kooltherm® Cavity Closer must be secured in position with wedges and fixings through the fixing flange to ensure no movement. Offer up the window / door frame, secure to the masonry and use standard flange clips to fix the frame to the Kingspan Kooltherm® Cavity Closer section.

Use of Butt Joints ●

When the wall has been completed and the mortar set, the timber bracing is removed and the closer sections are fixed to the masonry through the holes provided in the fixing flange.

● ●

●

Kingspan Kooltherm® Cavity Closer sections can be butt jointed but should be limited to not more than one joint per frame side. To facilitate alignment, machine–cut ends should be butted in a preference to those cut on site. A joint strip will enable abutting sections to be connected and aligned when Kingspan Kooltherm® Cavity Closer is built in on its own. The use of adhesive aluminium foil around a joint will prevent water tracking.

Sitework General Cutting ● Cutting should be carried out using a fine toothed saw.

Completion ● On completion, the frame is sealed to the surrounding masonry and internal plaster in accordance with normal practice.

Finishing ● Plaster or floor screed is applied directly to Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S as the section provides an effective key. ●

Limitations of Use ● Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S are non–loadbearing and should not be used to support window or door frames, nor used in place of normal cavity wall ties.

Where it is used in conjunction with a floor screed at a door threshold, the screed should be of sufficient thickness (65 mm minimum) or reinforced to prevent cracking.

Availability Kingspan Kooltherm® Cavity Closer is available through specialist insulation distributors and selected builders’ merchants throughout the UK.

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Plastering ● Note that the first coat of plaster should be pricked up into the keys on the Kingspan Kooltherm® Cavity Closer and then scored as a key for the next coat of plaster.

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Dry–lining ● The dabs for dry lining readily key into the Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S section.

Packaging ● According to quantity, Kingspan Kooltherm® Cavity Closer sections are supplied in polythene packs, which are recyclable. ●

Kingspan Kooltherm® Cavity Closer P L U S is supplied without packaging.

Continuous plaster dab around corner

Storage ● Care must be taken when storing to prevent distortion of the sections and Kingspan Kooltherm® Cavity Closer P L U S must be stored propped vertical.

Continuous plaster dab in keys

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Fixing Oversailing Window Boards Window boards should be fixed in the conventional manner.

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Kingspan Kooltherm® Cavity Closer P L U S is made to order and delivered direct to site.

Direct fixing to Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S is insufficient. Where an embedded tiled inner cill or threshold is required, the Kingspan Kooltherm® Cavity Closer or Kingspan Kooltherm® Cavity Closer P L U S profile provides a key for cement bedding.

Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S should not be exposed to excessive heat. The packaging of Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S should not be considered adequate for outdoor protection. Ideally, sections should be stored inside a building. If, however, outdoor storage cannot be avoided, then the sections should be stacked clear of the ground and covered with a polythene sheet or weatherproof tarpaulin. Sections where the insulation core has been allowed to get wet should not be used.

Health and Safety ● Kingspan Insulation products are chemically inert and safe to use.

Flexible seal at junction between the cill board and window frame

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Fill gaps between cill board & cavity closer with suitable expanding urethane sealant

Flexible seal at junction between the cill board and internal wall finish

A Safety Information Data Sheet for this product is available from the Kingspan Insulation website www.kingspaninsulation.co.uk/safety.

Product Details Product Description

Standard Dimensions

Kingspan Kooltherm® Cavity Closer comprises a PVC–U extrusion with a rigid thermoset modified resin insulation core, manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP). It is manufactured in thirteen sizes to suit cavities 50–150 mm wide. Jointing clips extend the range further by allowing the Kingspan Kooltherm® Cavity Closer sections to be joined to accommodate wider cavities of up to 300 mm.

Kingspan Kooltherm® Cavity Closer is available as standard in 2.4 m long sections in the following section profiles. Kingspan Kooltherm® Cavity Closer 50, 75 & 100 For cavities 50, 75 & 100 mm wide

128

31.5

48 50 / 75 / 100

Insulating core Ribbed flange

Kingspan Kooltherm® Cavity Closer 105, 110, 115, 120, 125, 130, 135, 140, 145 & 150 For cavities 105, 110, 115, 120, 125, 130, 135, 140, 145 & 150 mm wide

Tees prevent water tracking

170

31.5

Kingspan Kooltherm Cavity Closer P L U S ®

48 105 / 110 / 115 / 120 / 125 / 130 / 135 / 140 / 145 / 150

Kingspan Kooltherm® Cavity Closer is available pre–formed to specified opening sizes. Kingspan Kooltherm® Cavity Closer P L U S is available in the same widths and standard Kingspan Kooltherm® Cavity Closer, and sections can also be joined back-to-back to accommodate wider cavities of up to 300 mm. Temporary timber bracing is used to maintain the pre-formed shape.

Standards and Approvals Kingspan Kooltherm® Cavity Closer is manufactured to the highest standards under a management system certified to BS EN ISO 9001: 2000 (Quality management systems. Requirements), BS EN ISO 14001: 2004 (Environmental Management Systems. Requirements) and BS OHSAS 18001: 2007 (Health and Safety Management Systems. Requirements).

The section profile and rigid thermoset insulation core to the sections are the same as in standard Kingspan Kooltherm® Cavity Closer sections. Kingspan Kooltherm® Cavity Closer P L U S can be used with plastic, timber or metal window frames and an insulated lintel or Kingspan Kooltherm® Cavity Closer section can be used at the head.

Product Details Accessories Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S are complemented by a full range of accessories to maximise the efficiency and scope for variable design options. Clip sections are supplied in 1 metre lengths and are colour coded.

Optional Fixing Tie The tie is an optional / additional fixing and is particularly useful when using Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S to form openings. They can not be used when two sections are joined back to back. The tie is designed with different angled ends which slot securely between the tee flanges at the “back” of the Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S section and keys fully into the mortar bed joint of the outer masonry skin. They are moulded PVC–U supplied in packs of 150.

Jointing Clip This connects two Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S sections for use in cavities greater than 150 mm wide. The clip should be installed in 100 mm lengths at 300 mm centres. Colour: blue

Colour: white

45 4

Curved Sections Kingspan Kooltherm® Cavity Closer can be factory formed to any specified radius for bullseye windows, curved heads, etc. Jointing Strip This connects two Kingspan Kooltherm® Cavity Closer sections, aligning them in a butt joint. The strip allows for opening sizes in excess of 2.4 m, and for the reduction of wastage through the use of off-cuts. Limited to one butt joint per side of the opening. Colour: grey 16 5

Environmental Impact & Responsible Sourcing

Resistance to Solvents, Fungi & Rodents

Green Guide Rating An Ecoprofile, certified by BRE Certification to the 2008 BRE Environmental Profiles Methodology, has been created for the insulation strips, produced at Kingspan Insulation’s Pembridge manufacturing facility and used in Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S . The BRE has assigned the insulation strips a 2008 Green Guide Summary Rating of A+.

Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S are resistant to short–term contact with petrol and with most dilute acids, alkalis and mineral oils. However, it is recommended that any spills be cleaned off fully before the products are installed. Ensure that safe methods of cleaning are used, as recommended by suppliers of the spilt liquid. Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S are not resistant to some solvent–based adhesive systems, particularly those containing methyl ethyl ketone, esters and aromatic hydrocarbons (e.g. toluene, xylene, benzene). Adhesives containing such solvents should not be used in association with these products. Damaged product or product that has been in contact with harsh solvents or acids should not be used.

Environmental Profiles Scheme Certificate Number ENP 410

Responsible Sourcing Kingspan Kooltherm® Cavity Closer is manufactured under a management system certified to BS / I.S. EN ISO 14001: 2004. The principle polymer component of the insulation strips, produced at Kingspan Insulation’s Pembridge manufacturing facility and used in Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S , is also manufactured under a management system certified to BS EN ISO 14001: 2004.

The insulation core and PVC-U extrusion used in the manufacture of Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S resist attack by mould and microbial growth and do not provide any food value to vermin.

Fire Performance Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S , when subjected to the British Standard fire test specified in the table below, has achieved the result shown.

Sustainability & Responsibility Kingspan Insulation has a long-term commitment to sustainability and responsibility: as a manufacturer and supplier of insulation products; as an employer; as a substantial landholder; and as a key member of its neighbouring communities. A report covering the sustainability and responsibility of Kingspan Insulation Ltd’s British operations is available at www.kingspaninsulation.co.uk/sustainabilityandresponsibility.

Thermal Properties Thermal Conductivity The thermal conductivity (λ–value) of the rigid thermoset insulation core of Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S is 0.022 W/m.K.

Test

Result

UKAS accredited fire resistance test utilising the general principles of BS 476 Part 20: 1987 (Fire tests on building materials and structures. Method for determination of the fire resistance of elements of construction (general principles).

A single section of 150 mm Kingspan Kooltherm® Cavity Closer installed in a 150 mm wide cavity, with a PVC window frame, passed a one hour test – result assessed as being valid for all Kingspan Kooltherm® Cavity Closer sizes, up to and including 150 mm wide, installed in a cavity of the same width, and also for metal and timber window frames. Two sections of 150 mm Kingspan Kooltherm® Cavity Closer joined back to back and installed in a 300 mm wide cavity, with a PVC window frame, passed a half hour test – result assessed as being valid for two sections of Kingspan Kooltherm® Cavity Closer joined back to back, overall 155 to 300 mm wide, installed in a cavity of the same width, and also for metal and timber window frames.

Further details on the fire performance of Kingspan Insulation products may be obtained from the Kingspan Insulation Technical Service Department (see rear cover).

Durability If correctly applied, Kingspan Kooltherm® Cavity Closer and Kingspan Kooltherm® Cavity Closer P L U S have an indefinite life. Their durability depends on the supporting structure and the conditions of its use. 11

Contact Details Customer Service

Technical Advice / Design

For quotations, order placement and details of despatches please contact the Kingspan Insulation Customer Service Department on the numbers below:

Kingspan Insulation supports all of its products with a comprehensive Technical Advisory Service for specifiers, stockists and contractors.

Tel: +44 (0) 1544 388 601 Fax: +44 (0) 1544 388 888 email: customerservice@kingspaninsulation.co.uk

Tel: +44 (0) 1544 387 384 Fax: +44 (0) 1544 387 484 email: literature@kingspaninsulation.co.uk www.kingspaninsulation.co.uk/literature

General Enquiries

Tapered Roofing

For all other enquiries contact Kingspan Insulation on the numbers below:

For technical guidance, quotations, order placement and details of despatches please contact the Kingspan Insulation Tapered Roofing Department on the numbers below:

Tel: +44 (0) 1544 388 601 Fax: +44 (0) 1544 388 888 email: info@kingspaninsulation.co.uk

Tel: +44 (0) 1544 387 383 Fax: +44 (0) 1544 387 483 email: tapered@kingspaninsulation.co.uk

Kingspan Insulation Ltd is a member of: The National Insulation Association (NIA)

Kingspan Insulation Ltd Pembridge, Leominster, Herefordshire HR6 9LA, UK

www.kingspaninsulation.co.uk

Kingspan, Kooltherm, the zo Device and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK and other countries. All rights reserved. Registered in England & Wales, No. 01882722. Registered Office: Pembridge, Leominster, Herefordshire HR6 9LA UK. VAT GB428602456

Floor Insulation

Insulation CI/Sfb

(27.9)

Ninth Issue

Rn7

March 2011

K3 Floorboard INSULATION FOR FLOORS G

Premium performance rigid thermoset insulation – thermal conductivities as low as 0.020 W/m.K

Class 0 fire rating*

Class 0 fire rated insulation core

Negligible smoke obscuration

G G

Can reduce the cost of related items – soil removal, service connections Unaffected by air infiltration Resistant to the passage of water vapour Easy to handle and install Ideal for new build and refurbishment Non–deleterious material Manufactured with a blowing agent that has zero ODP and low GWP

* for product produced at Kingspan Insulation’s Pembridge manufacturing facility

Low Energy – Low Carbon Buildings

Typical Constructions and U–values Heat Loss and Linear Thermal Bridging

Assumptions

For buildings with relatively small ground floor areas (primarily domestic properties), if the ground floor is left uninsulated, the thermal performance will be poor. To enhance the thermal performance, complete insulation of the ground floor should be adopted (Figures 1 & 3).

Perimeter insulation upstand

APPROVAL INSPECTION TESTING CERTIFICATION COMPETENT PERSON CS/1004-1

Kingspan Kooltherm® K3 Floorboard Floor slab Screed

Minimum of 150 / 225* mm for a concrete floor

Unlike roofs, walls and intermediate floors, U–value calculations for ground floors cannot be calculated with reference to the construction detail alone. Heat loss from ground floors depends upon the ratio of the exposed floor perimeter to the total floor area, the thickness of any basement wall and the depth of any basement.

Figure 1 – Complete Masonry Floor Insulation

For buildings with large ground floor areas (primarily non–domestic properties), complete insulation of the ground floor may be unnecessary. Insulating the perimeter in a 1.2 metre wide strip may provide adequate thermal performance (Figure 2).

Calculations in the tables that follow assume complete insulation of the floor area, please contact the Kingspan Insulation Technical Service Department for calculations with perimeter strip insulation only. Perimeter insulation upstand

Kingspan Kooltherm® K3 Floorboard in 1.2 metre perimeter strip Floor slab Screed

Minimum of 150 / 225* mm for a concrete floor

If the P/A ratio lies between two of the numbers shown in the tables that follow, for a safe estimate, please use the P/A ratio shown that is the next highest i.e. for 0.57 use 0.6.

Figure 2 – Perimeter Strip Masonry Floor Insulation

In order to minimise cold bridging at the edge of the floor, the distance between the top of the floor insulation surface or perimeter insulation upstand, and the bottom of the wall insulation must be 150 / 225* mm min. for a concrete floor (Figures 1 & 2) and 200 mm min. for a suspended timber floor (Figure 3).

NB The figures quoted are for guidance only. A detailed U–value calculation should be completed for each individual project. NB For the purposes of these calculations, using the method as detailed in BS / I.S. EN ISO 13370: 2007, the soil has been assumed to be sand or gravel, the wall insulation is assumed to overlap the floor insulation by minimum 150 / 225* mm for a concrete floor and 200 mm for a timber floor, and the standard of workmanship has been assumed good and therefore the correction factor for air gaps has been ignored. NB If your construction is different from those specified and / or to gain a comprehensive U–value calculation for your project please consult the Kingspan Insulation Technical Service Department for assistance (see rear cover).

* 150 mm applies to the UK and 225 mm to the Republic of Ireland. Kingspan Kooltherm® 18 mm tongue and grooved chipboard K3 Floorboard

U–value Table Key

Where an is shown, the U–value is higher than the worst of the maximum new build area weighted average U–values allowed by the 2010 Editions of Approved Documents L to the Building Regulations (England & Wales), the 2010 Editions of Technical Handbooks Section 6 (Scotland), the 2006 Editions of Technical Booklets F (Northern Ireland), or the 2008 Editions of Technical Guidance Documents L* (Republic of Ireland).

Minimum of 200 mm for a timber floor

25 mm x 25 mm 50 mm wide timber timber support battens floor joists

* Excluding Change of Use and Material Alterations.

Figure 3 – Complete Timber Floor Insulation 2

Beam and Dense* Block Ground Floors

Suspended Timber Ground Floors

Insulation Below the Floor Screed

Insulation Between Joists Kingspan Kooltherm® K8 Cavity Board

Floor screed

Kingspan Kooltherm® K8 Cavity Board

Kingspan Kooltherm® K3 Floorboard

Kingspan Kooltherm® K3 Floorboard Perimeter insulation upstand

Top surface of beam and block floor grouted

25 mm x 25 mm timber support battens Insulation overlap min. 150 / 225*** mm from bottom of wall insulation to top of insulation upstand

Beam Separation layer (see ‘Sitework’)

100 mm deep dense block infill*

Insulation overlap min. 200 mm from bottom of wall insulation to top of floor insulation

Damp proof membrane

18 mm tongue and grooved chipboard

50 mm wide floor joists at 400 mm centres

Figure 4

Figure 5

U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K3 Floorboard and Floor Perimeter / Area Ratios Insulant Perimeter / Area (m–1) Thickness (mm) 0.2 0.3 0.4 0.5 0.6 0.7

30 40 50 60 70 75 80 90 100 110 120 125 130 140 150 80 + 80 80 + 90**

0.24 0.21 0.19 0.17 0.17 0.16 0.15 0.14 0.13 0.12 0.12 0.11 0.11 0.10 0.10 0.09

0.23 0.21 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.12 0.11 0.11 0.10 0.10

0.25 0.22 0.20 0.19 0.18 0.17 0.15 0.14 0.13 0.13 0.12 0.12 0.11 0.10 0.10

0.23 0.20 0.19 0.19 0.17 0.16 0.15 0.14 0.13 0.13 0.12 0.11 0.11 0.10

0.23 0.21 0.20 0.19 0.17 0.16 0.15 0.14 0.13 0.13 0.12 0.11 0.11 0.10

0.24 0.21 0.20 0.19 0.18 0.16 0.15 0.14 0.13 0.13 0.12 0.11 0.11 0.10

* Calculations assume dense block infill of λ–value (1.13 W/m.K)

Insulant produced at Kingspan’s Pembridge facility 50 60 0.24 70 0.22 0.25 75 0.22 0.24 0.25 80 0.21 0.23 0.25 0.25 90 0.20 0.22 0.23 0.24 0.24 0.25 100 0.19 0.20 0.21 0.22 0.23 0.23 110 0.18 0.19 0.20 0.21 0.21 0.22 120 0.17 0.18 0.19 0.20 0.20 0.20 125 0.16 0.18 0.18 0.19 0.19 0.20 130 0.16 0.17 0.18 0.18 0.19 0.19 140 0.15 0.16 0.17 0.18 0.18 0.18 150 0.15 0.16 0.16 0.17 0.17 0.17 80 + 80 0.14 0.15 0.16 0.16 0.16 0.16 80 + 90* 0.13 0.14 0.15 0.15 0.15 0.16 75 + 100*/** 0.13 0.14 0.15 0.15 0.15 0.15 Insulant produced at Kingspan’s Castleblayney facility 30 0.25 40 0.23 50 0.21 0.23 0.25 60 0.20 0.22 0.23 0.24 0.24 0.25 70 0.19 0.20 0.21 0.22 0.22 0.23 75 0.18 0.20 0.21 0.21 0.22 0.22 80 0.18 0.19 0.20 0.21 0.21 0.21 90 0.17 0.18 0.19 0.19 0.20 0.20 100 0.16 0.17 0.18 0.18 0.19 0.19 110 0.15 0.16 0.17 0.17 0.18 0.18 120 0.14 0.15 0.16 0.16 0.17 0.17 125 0.14 0.15 0.16 0.16 0.16 0.16 130 0.14 0.15 0.15 0.16 0.16 0.16 140 0.13 0.14 0.15 0.15 0.15 0.15 150 0.13 0.14 0.14 0.14 0.14 0.15 80 + 80 0.12 0.13 0.13 0.14 0.14 0.14 80 + 90* 0.12 0.12 0.13 0.13 0.13 0.13 75 + 100*/** 0.12 0.12 0.13 0.13 0.13 0.13

** Where multiple layers of insulation of different thicknesses are used, the thickest layer should be installed as the outermost layer in the construction. *** 150 mm applies to the UK and 225 mm to the Republic of Ireland.

* Where multiple layers of insulation of different thicknesses are used, the thickest layer should be installed as the outermost layer in. **Suspended timber ground floor joists are typically 200 mm deep and, therefore, U–values have been calculated with a maximum insulation thickness of 175 mm, in order to accommodate 25 x 25 mm timber support battens.

Solid Concrete Ground Based Floors Insulation Below the Floor Slab

Insulation Below the Floor Screed Kingspan Kooltherm® K8 Cavity Board

Floor screed

Kingspan Kooltherm® K8 Cavity Board

Floor screed

Kingspan Kooltherm® K3 Floorboard

Kingspan Kooltherm® K3 Floorboard Perimeter insulation upstand

Perimeter insulation upstand

Concrete slab Concrete slab

Insulation overlap min. 150 / 225** mm from bottom of wall insulation to top of insulation upstand Hardcore Separation layer (see ‘Sitework’)

Insulation overlap min. 150 / 225** mm from bottom of wall insulation to top of insulation upstand

Hardcore Separation layer (see ‘Sitework’)

Damp proof membrane

Figure 6

Figure 7

U–values (W/m2.K) for Various Thicknesses of Kingspan Kooltherm® K3 Floorboard and Floor Perimeter / Area Ratios Insulant Perimeter / Area (m–1) Thickness (mm) 0.2 0.3 0.4 0.5 0.6 0.7

30 40 50 60 70 75 80 90 100 110 120 125 130 140 150 80 + 80 80 + 90* 75 + 100*

0.23 0.20 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.12 0.11 0.11 0.10 0.10 0.09 0.09 0.09

0.23 0.20 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.12 0.11 0.11 0.10 0.10 0.09

0.25 0.22 0.20 0.19 0.18 0.17 0.15 0.14 0.13 0.13 0.12 0.12 0.11 0.11 0.10 0.10

0.23 0.21 0.20 0.19 0.17 0.16 0.15 0.14 0.13 0.13 0.12 0.11 0.11 0.10 0.10

0.24 0.22 0.21 0.20 0.18 0.16 0.15 0.14 0.14 0.13 0.12 0.12 0.11 0.10 0.10

0.25 0.22 0.21 0.20 0.18 0.17 0.15 0.14 0.14 0.13 0.12 0.12 0.11 0.11 0.10