R
Creative Lintel Solutions A r 1
D F
B
E
C
Part of the
Welcome to the wonderful world of ‘Creative Lintel Solutions’ by IG. IG is a well-established brand within the construction industry, and renowned for providing lintel solutions to architects, builders, merchants, and end-users. As part of the Keystone Group, IG is leading the way in bespoke Steel Lintel design and manufacture. The Technical Team at IG are pushing back the boundaries in Steel Lintel design, providing custommade lintels with short lead-times. Be inspired by what IG has to offer - IG is better by design!
Contents
2
Page
Arch Lintels Full Arch Lintel Segmental Arch Lintel Venetian Arch Lintel Apex Arch Lintel Parabolic Arch Lintel Gothic Arch Lintel
4 4 5 5 6 7
Corner Lintel
8
Bow Lintel
9
Bay Lintel Square Bay Lintel Splayed Bay Lintel
10 11
Sun Lounge Lintel Standard Sun Lounge Lintel Bow Sun Lounge Lintel Venetian Arch Sun Lounge Lintel Apex Sun Lounge Lintel
12 16 17 18
Brick Arch Sets
19
Thin Joint Lintel
20
Roller Shutter Lintel
21
Windposts
22
Keystone Group “Special” Projects
24
Keylite Roof Windows
30
3
R
(clear span) a
c
c
Elevation
Lintel Dimensions:
Wall Construction:
Clear span a =
mm
Outer leaf
mm
Radius R =
mm
Cavity width
mm
End bearing c =
mm
Inner leaf
mm
Plaster Key Requirements: (please tick)
Inside only
Both sides
None
Full Arch Lintel
r (clear span) a
c
c
Elevation
Lintel Dimensions: mm
Outer leaf
mm
Rise r =
mm
Cavity width
mm
End bearing c =
mm
Inner leaf
mm
Plaster Key Requirements: (please tick)
4
Segmental Arch Lintel
Wall Construction:
Clear span a =
Inside only
Both sides
None
Elevation
r
(arch span) a2 (overall clear span) a1
c Lintel Dimensions:
c
Wall Construction:
Overall clear span a1 =
mm
Outer leaf
mm
Arch span a2 =
mm
Cavity width
mm
Rise r =
mm
Inner leaf
mm
End bearing c =
mm
Plaster Key Requirements: (please tick)
Arch Type: (please tick)
Inside only
Both sides
Segmental Arch
None Support Posts: (if required)
Height
Full Arch
Parabolic Arch
Apex Arch
mm
Gothic Arch
Venetian Arch Lintel
r
c
(clear span) a
c
Elevation
Lintel Dimensions:
Wall Construction:
Clear span a =
mm
Outer leaf
mm
Rise r =
mm
Cavity width
mm
End bearing c =
mm
Inner leaf
mm
Plaster Key Requirements: (please tick)
Apex Arch Lintel
Inside only
Both sides
None
5
To construct a Parabolic Curve C
E
D
F
1 r
A
B
Draw rectangle ABCD Make DE = DA Make CF = CE Bisect AF to make point 1 Project a right angle off AF at point 1 to find small radius r, and project further to find large radius R
R
r
(clear span) a
c
c
Elevation Lintel Dimensions: Clear span a =
mm
Outer leaf
mm
Rise r =
mm
Cavity width
mm
End bearing c =
mm
Inner leaf
mm
Plaster Key Requirements: (please tick)
6
Parabolic Arch Lintel
Wall Construction:
Inside only
Both sides
None
r
c
(clear span) a Elevation
Lintel Dimensions:
c Radius
Wall Construction:
Clear span a =
mm
Outer leaf
mm
Rise r =
mm
Cavity width
mm
End bearing c =
mm
Inner leaf
mm
Plaster Key Requirements: (please tick)
Inside only
Both sides
None
Radius: (if known)
Radius
mm
Gothic Arch Lintel (Single Radius)
r
Small Radius
(clear span) a
c
Elevation
c Large Radius
Radius: (if known)
Lintel Dimensions: Clear span a =
mm
Large Radius
mm
Rise r =
mm
Small Radius
mm
End bearing c =
mm
Plaster Key Requirements: (please tick)
Inside only
Both sides
None
r
Small Radius
Double Radius
Wall Construction:
Gothic Arch Lintel (Double Radius)
Outer leaf
mm
Cavity width
mm
Inner leaf
mm
Large Radius
7
The IG Corner Lintel is supplied as a ‘one piece’ fully mitred and welded structural unit for easy installation.
Fully Filled Insulated Cavity
Section through corner and post supported on substructure
Factory mitred and welded corner lintel Location Spigot
Spot Welded Plaster Key Factory fitted Location Spigot
Steel Corner Post dimension by IG Technical Dept.
Steel Corner Post supplied with Lintel Dimensions by IG Technical Dept.
Cill notched around post
10mm Base Plate bolted to substructure using 12mm dia fixing bolts DPC stepped across cavity, laid under and turned up back of cill
10mm Base Plate
Cill detail
Heavy Duty Corner Lintel
Dimensions Required: A-B =
mm
B-C =
mm
A-C =
mm
A
Plaster Key Requirements: (please tick)
Inside only
Both sides
None
Brick Reveal
B
8
Corner Lintel
Outer leaf
mm
Cavity width
mm
Inner leaf
mm
Support Post:
Height
C Important Notes: Do not allow for bearing, this will be added at manufacturing stage. Very accurate measurements required.
Wall Construction:
Brick Reveal
mm
Span C Outshot
A
B
D Brick Reveal
Brick Reveal Straight Edge Important Notes: Do not allow for bearing, this will be added at manufacturing stage. Very accurate measurements required.
Wall Construction:
Dimensions Required: A-B =
mm
Outer leaf
mm
C-D =
mm
Cavity width
mm
Inner leaf
mm
Plaster Key Requirements: (please tick)
Inside only
Both sides
None
Support Posts:
Height
mm
Bow Lintel
(Projecting Reveals)
Span C
A
B
Outshot Brick Reveal
D Straight Edge
Brick Reveal
Important Notes: Do not allow for bearing, this will be added at manufacturing stage. Very accurate measurements required.
Wall Construction:
Dimensions Required: A-B =
mm
Outer leaf
mm
C-D =
mm
Cavity width
mm
Inner leaf
mm
Plaster Key Requirements: (please tick)
Bow Lintel
(Non Projecting Reveals)
Inside only
Both sides
None
Support Posts:
Height
mm
9
IG provide arches and bow lintels, corner and sun lounge lintels, as well as solutions for splayed and square bay lintels.
Exploded isometric view of Square Bay Lintel supported on substructure
250 Base Plate Post dimensions by IG Technical Dept.
350 10mm Base Plate
Important Notes: Do not allow for bearing, this will be added at manufacturing stage. Very accurate measurements required.
Brick Reveal
Brick Reveal
A
D
B
C
Wall Construction:
Dimensions Required:
Square Bay Lintel
mm
Cavity width
mm
Inner leaf
mm
A-B =
mm
B-C =
mm
Support Posts:
C-D =
mm
Height
Plaster Key Requirements: (please tick)
10
Outer leaf
Inside only
Both sides
None
mm
Brick Reveal
Brick Reveal
A
D To Clients specification
Important Notes: Do not allow for bearing, this will be added at manufacturing stage. Very accurate measurements required.
Xยบ B
C Base Plate
10mm Base Plate Post dimensions by IG Technical Dept.
250 250
Wall Construction:
Dimensions Required: A-B =
mm
Outer leaf
mm
B-C =
mm
Cavity width
mm
C-D =
mm
Inner leaf
mm
A-D =
mm
A-C =
mm
Support Posts:
B-D =
mm
Height
mm
Plaster Key Requirements: (please tick)
Inside only
Both sides
None
Splayed Bay Lintel (Projecting Reveals)
Brick Reveal
Brick Reveal
A
Important Notes: Do not allow for bearing, this will be added at manufacturing stage. Very accurate measurements required.
D
C
B
To Clients specification
Xยบ
Base Plate
10mm Base Plate Post dimensions by IG Technical Dept.
250 250
Wall Construction:
Dimensions Required: A-B =
mm
Outer leaf
mm
B-C =
mm
Cavity width
mm
C-D =
mm
Inner leaf
mm
A-D =
mm
A-C =
mm
Support Posts:
B-D =
mm
Height
mm
Plaster Key Requirements: (please tick)
Splayed Bay Lintel (Non Projecting Reveals)
Inside only
Both sides
None
11
IG Sun Lounge Lintel Did you know? It is universally recognised amongst home owners and house builders that a Sun Lounge is a more practical, user friendly room than a conservatory. Furthermore it is agreed that a Sun Lounge floor area can be included in the overall measurement of your house size, adding much more value to your home. A Sun Lounge Lintel is an easy way to add space at low cost when building a new house, or extending a property. An extra room rather than an add-on, a Sun Lounge is comfortable all year round while allowing you to watch the seasons come and go in comfort.
What does a Sun Lounge offer you? A Sun Lounge will blend with the existing appearance of your home. It’s easy to construct, using materials similar to your house. Also it adds genuine floor space, it is structurally sound and adds value immediately.
Is the Sun Lounge the same as a conservatory? No! A Sun Lounge is more competitively priced than a conservatory, is more visually appealing, is easier to clean, and is not a bolt on “extra”. • Much better heat retention in winter • Protection from the blazing summer sun • Noise reduction associated with rainfall on a conservatory roof
What do IG offer? The construction of a Sun Lounge has been simplified by the introduction of an IG Lintel. It is a one piece unit which removes the need for local engineering, allows architects to design the Sun Lounge to suit the property, and will keep the cost sensible. The IG Sun Lounge Lintel is designed and delivered ready for erection.
12
Standard Sun Lounge Lintel
Spot Welded Plaster Key Steel Corner Posts Dimensions by IG Technical Dept. Includes 10mm Base Plate
Fully Filled Insulated Cavity
Factory Fitted Location Spigots
It’s as easy as... 1
3
2
Standard Sizes: Width (W) Length (L)
The Sun Lounge Lintel can be supplied in any size to suit your requirements
Sun Lounge Int Width (W) Int Length (L) A 3m 3m B 3m 3.6m C 3.6m 3.6m D 3.6m 4m E 4m 4m F 4m 4.6m
13
Roof Construction: Slates or tiles to match existing on 25x50mm battens on one layer sarking felt on 38x150mm rafters @ 400mm CRS with 38x50mm battens to U/S of rafters to maintain 50mm airgap within roof construction when incorporating 150mm fibre glass quilt insulation. 50x100mm Ridge Plate shot fixed to T/S ridge beam. 50x100mm Wall Plate securely strapped down to wall using 5x30mm galv ms straps by Cullen or equal @ 1200mm CRS. 100x25mm diagonal bracing positioned both sides of roof. 38x100mm collar ties @ 400mm CRS. 50x250mm hip rafters. TG and V redwood sheeting ceiling painted with Class 1 SSF varnish. All structural timber to be C16 or greater and must be stamped accordingly.
Lintel Specification: IG L1/HD factory Sun Lounge Lintel supported on MS posts designed by IG Tech. Dept. located as indicated on plan.
Structural Rigidity: • Roof Anchorage - First rafter and collar tie to be bolted to main wall at 450mm CRS using Rawl bolts or similar proprietary fixing. • MS support posts and factory fitted Base Plate to be bolted down on top of solid footings built up to 300mm below finished floor level. • Wracking resistance provided using 9mm plywood secured to U/S of rafters and collar ties prior to any decorative finishes. • Where a raised or vaulted ceiling is required an IG Ridge Beam Cradle must be used.
Construction Details: Provide 150mm fibreglass quilt insulation between roof rafters and collar ties. Insulation to be carried over top of cavity wall and pushed into soffit box to prevent a cold bridge. Install Cullen G400 eaves ventilators to provide a continuous air path for roof space ventilation between roof and insulation and roof underlay at eaves equivalent to 10,000mm2/m with Cullen G1200 over facia ventilator to provide ventilation to roof space equivalent 10,000mm2/m in accordance with Bld. Regs. Approved Document F2 1995 and or BS 5250: 1989. Fixed in accordance with manufacturers instructions. Provide stepped cavity tray across wall directly above Code No.4 flashing, where new roof abuts wall. Note all lead to be treated with patination oil. Rainwater goods facia and soffit to match existing. RC cill with DPC @ rear, ends and under. Wall DPC located min. 150mm above ground level. 300mm solid blockwork footings. 250mmx600mm concrete foundation. Form new opening from existing dwelling into Sun Lounge to client’s requirements. Provide vertical DPC where Sun Lounge window abuts existing wall. Where new wall abuts existing, new cavity to be continuous with existing cavity. Provide 35mm polystyrene insulation between MS post and against inner leaf where post is inside cavity, to prevent a cold bridge. All glazed panels to doors and side panels with glazing less than 1500mm above floor or ground level to be glazed with safety glass to BS 6206: Class B and C. Provide 300mm cavity wall construction with 60mm Rigid Polystyrene Insulation - Wall ties with insulation clips to be spaced 750mm horizontal and 450mm vertical CRS. Form new external steps @ doorway to comply with current Bld. Regs. Any new heating pipes to be insulated with an insulation of thickness of not less than the diameter of the pipe - insulation to BS 5422:1977. Provide 100mm dia stormwater drain, laid to fall 1:60, drain pipe to be surrounded with 150mm pea gravel. All drain pipes to comply with BS 4660 - connected to existing system.
Specification: IG L1/HD factory fabricated Sun Lounge Lintel - mitred and welded complete with factory fitted location spigots for easy installation - on MS posts designed by IG Technical Dept complete with 10mm thick Base Plates secured to solid footing 300mm below finished floor level. On large Sun Lounges and in exposed locations the IG Inverted Support Frame is supplied as specified by IG Technical Department.
14
Standard Sun Lounge Lintel - Construction Data
Brick Reveal
Brick Reveal
Base Plate
F
A
Xยบ
10mm Base Plate
To Clients specification
250
Post dimensions by IG Technical Dept.
250
Dimensions Required:
E
B
C
D
Important Notes: Do not allow for bearing, this will be added at manufacturing stage. Very accurate measurements required.
Plaster Key Requirements: (please tick)
A-B =
mm
Inside only
B-C =
mm
Both sides
C-D =
mm
None
D-E =
mm
E-F =
mm
A-F =
mm
Outer leaf
mm
A-E =
mm
Cavity width
mm
B-F =
mm
Inner leaf
mm
B-E =
mm
C-E =
mm
Support Posts:
B-D =
mm
Height
Wall Construction:
mm
Standard Sun Lounge Lintel - Measurement Sheet Exploded Isometric View
Fixing Detail
IG Ridgebeam Cradle Ridgebeam Cradle secured to internal flange of lintel using 2 no. M12 bolts
L1/HD factory fabricated Sun Lounge Lintel MS posts designed by IG Tech. Dept. c/w 10mm thick Base Plate
Footing
Where a Cathedral or Vaulted ceiling is required the IG Ridgebeam Cradle is supplied to support the roof structure and resist roof spread.
Foundation
Standard Sun Lounge Lintel - Raised Ceilings
15
Exploded Isometric View
IG Bow Lintel as specified by Technical Dept., factory fabricated and fitted with location spigots. MS posts designed by IG Technical Dept. c/w 10mm thick Base Plate secured to substructure 300mm below finished floor level.
Brick Reveal A
Brick Reveal
10mm Base Plate
D
Base Plate
Post dimensions by IG Technical Dept.
250
250 X
B
C
Y Z
Important Notes: Do not allow for bearing, this will be added at manufacturing stage. Very accurate measurements required.
Dimensions Required: A-B =
mm
Outer leaf
mm
B-C =
mm
Cavity width
mm
C-D =
mm
Inner leaf
mm
X-Y =
mm
X-Z =
mm
Plaster Key Requirements: (please tick)
16
Bow Sun Lounge Lintel
Wall Construction:
Inside only
Both sides
None
Support Posts:
Height
mm
Specify: IG factory mitred and welded Venetian Arch Square Bay Lintel and posts with factory fitted location spigots for easy installation.
250 Base Plate Post dimensions by IG Technical Dept.
10mm Base Plate
350
A
Brick Reveal
B
Brick Reveal
C
Arch Span (s)
IG Sun Lounge Sample Plans
D
Important Notes: Do not allow for bearing, this will be added at manufacturing stage. Very accurate measurements required.
Dimensions Required:
Wall Construction:
A-B =
mm
Outer leaf
mm
B-C =
mm
Cavity width
mm
C-D =
mm
Inner leaf
mm
Arch Dimensions:
Arch Span (s) =
mm
Rise (r) =
mm
Plaster Key Requirements: (please tick)
Support Posts: Height
mm
Arch Type: (please tick)
Full Arch
mm
Segmental Arch
mm
Parabolic Arch
mm
Inside only
Both sides
Apex Arch
mm
None
Gothic Arch
mm
Venetian Arch Sun Lounge Lintel
17
Exploded Isometric View
Steel purlin supporting Wall Plate bolted to framework
Eaves beam supporting Wall Plates bolted to framework
H
SHS Apex gable support frame to be sized by IG Tech, Dept. on 10mm thick Base Plates bolted to substructure
Main Wall of House A
Brick Reveal
B
Important Notes: Do not allow for bearing, this will be added at manufacturing stage. Very accurate measurements required.
E Brick Reveal
C
w
Dimensions Required: A-B=
mm
B-C=
mm
C-D=
mm
C-E=
mm
Height from top of substructure to underside of lintels (H) External frame width of patio doors if applicable (W) Roof pitch
18
Apex Sun Lounge Lintel
D
mm mm
Information Required
IG provide a variety of special lintels and ‘brickwork support systems’. A new addition to the range is IG ‘Brick Arch Sets’, where the brick-slips are tapered onto a pre-furbished lintel.
Brick type
(r)
Width of joint
Clear Opening (s)
IG offer a ‘brick matching’ service where the complete brick arch set is designed and customised to your specific needs. Pre-formed, factory-finished steel lintels by IG are cost-effective and less timeconsuming on-site.
Angle of skew (a)
Gothic Arch
Height of brick arch (h)
1 11/2 Other
Type of brick arch
Flat
(r)
• Precision cut bricks • Load bearing lintel • Lightweight for fast build programmes • Optional brickclad soffit • Optional centrestone feature • Optional insulation • Various shapes available
Parabolic* Gothic*
Clear Opening (s)
Full
Parabolic Arch
Segmental* Bulls Eye Clear brickwork opening (s) Brick rise (r)*
Select from section below if soffit is required returned or non returned - Please tick box
(r) Clear Opening (s)
100mm
100mm
Segmental Arch IG galvanised powdercoated arch set
Clear Opening (s)
IG galvanised powdercoated arch set
Returned Soffit
Non Returned Soffit
Optional Extras - Please tick box if required
(h) a
Full Arch (Bullseye)
Clear Opening (s)
Stone Centrestone
Brick Centrestone
Flat Arch 11/2 brick deep t
1. Projecting Top
Distance (t)
Clear Opening (s)
(h)
f
Clear Opening (s)
Full Arch
Brick Arch Sets
Flat Arch
2. Projecting Front
Distance (f)
a
mm
mm
3. Projecting Bottom
Distance (b)
mm
b
19
A New Development in Cavity Wall Construction. This range enables fastrack construction of the structural internal leaf before the external leaf is built.*
Integral DPC Fully Insulated Cavity
L1/TJ 50 Lateral restraint clips at 500mm centres fixed with 4mm x 50mm galvanised nails
Thermal Break Plate Part ‘L’ Compliant
Level uniform surface for 3mm joint Extended C section 225mm high for lintels greater than 1800mm
‘h’ nominal
95 Thermal Break Plate Part ‘L’ compliant
Manufactured Length 0600 in 150mm increments 1500
1650 1800
1950 2100
2250 2700
2850 3000
A
B
C
D
E
Height ‘h’
130
160
225
225
225
Thickness
5.0
5.0
3.2
5.0
5.0
Total UDL (Kn) Internal Leaf
10
15
18
27
25
Total UDL (Kn) External leaf
3
5
8
9
10
Specification
100 measurement to suit cavity
For standard loading conditions in 50mm wide thin joint cavity wall construction. To achieve loading figures lintels must be built in as shown with firmly butted perpendicular joints. The L1/TJ lintel range can be supplied to suit wider cavities eg. specify L1/TJ 75, L1/TJ 100.
Note: For other loading conditions contact the IG Technical Department *Subject to structural conditions
Thin Joint Cavity Lintel System This range has been developed by IG for use over openings in Thin Joint Solid Wall construction.
L1/TW-215
‘h’ nominal 195
Thermal break (Part ‘L’ compliant) External cladding Cold outer surface
Warm inner surface
Thermal break For light duty loading conditions for 215mm solid wall construction. To achieve loading figures, lintel must be built in with block or brick work as shown and suitably propped during construction. The L1/TW lintel range is available to suit 250 to 300mm wide walls eg. specify L1/TW-250, L1/TW-300 Manufactured Length 0600 in 150mm increments 1200
Thin Joint Solid Wall Lintels
1800 2100
2250 2700
Height ‘h’
55
86
86
113
Thickness
2.6
2.6
2.9
3.2
6
8
8
10
Total UDL (Kn)
20
1350 1650
L1/HDTW-215
L1/ITW-215
227 150
195
195
Thermal break
Thermal break For heavy duty loading conditions for 215mm solid wall construction. To achieve loading figures, lintel must be built in with block or brick work as shown and suitably propped during construction. The L1/HDTW lintel range is available to suit 250 to 300mm wide walls eg. specify L1/HDTW250, L1/HDTW-300 Manufactured Length 0600 in 150mm increments 1800
1950 2400
2250 3000
For heavy duty loading conditions for 215mm solid wall construction. To achieve loading figures, lintel must be built in with block or brick work as shown and suitably propped during construction. The L1/ITW lintel range is available to suit 250 to 300mm wide walls eg. specify L1/ITW-250, L1/ITW-300 Manufactured Length 0600 in 150mm increments 1800
1950 2100
2250 3000
3150 4000
4200 4800
Height ‘h’
152
152
152
Height ‘h’
227
227
227
227
227
Thickness
2.6
2.9
3.2
Thickness
2.6
2.6
2.9
3.2
3.4
Total UDL (Kn)
20
22
27
Total UDL (Kn)
45
40
40
40
35
Thin Joint Solid Wall Lintels The Roller Shutter Lintel can be supplied to suit all wall constructions and loading conditions. Contact the IG Technical Department for full specification. A
B
C
dpc
95
95
Dimensions Required:
H
A=
mm
B=
mm
C=
mm
H=
mm
Lintel Length =
mm
Roller Shutter Lintels
21
IG Windpost Systems
Windpost Design
IG Windposts span vertically between floors to provide additional lateral support for large panels of brickwork or large panels with openings. It is often difficult to provide suitable justification that masonry walls have lateral stiffness and therefore construction would traditionally be strengthened by the addition of thicker walls or by including columns, to effectively shorten the span of the masonry panel.
IG Windposts are manufactured from grade 304 stainless steel (grade 316 is available if required). The IG Technical Team will provide full product specification and schedules.
IG manufacture three types of windpost. The U Windpost is installed within the cavity and will normally span between floor structures, with the same principle applying to the DU Windpost. Both designs leave the inner leaf of the cavity wall undisturbed. The LP Windpost is designed to be built into the inner skin of the cavity wall and normally span between floor structures.
All three Windpost designs are available in shorter lengths to provide the same level of stability to parapets or below windows, commonly termed Parapet or Spandrel Posts respectively. These posts are designed as cantilevers.
U type windpost for cavity installation
IG U type windpost shown fixed at the base to concrete and at the top to the underside of a steel beam. A range of top and base connectors can be designed to suit specific project requirements.
DU type windpost for cavity installation
LP type windpost for installation into the inner leaf of the blockwork
U Tie
L(50/75/100) Tie
L Shear Tie
All IG Windposts are supplied with specifically designed base and upper connections and fixings. They are also supplied with a suitable number of wall-ties which will vary in relation to the post type used and the cavity width. There are five types: U Tie – For use with U & DU Windposts. L50 Tie – For use with LP Windposts (50mm cavity). L75 Tie – For use with LP Windposts (75mm cavity). L100 Tie – For use with LP Windposts (100mm cavity). L Shear Tie – For use with LP Windposts. L Shear Tie can be supplied with a de-bonding sleeve if the windpost is positioned at a vertical movement joint.
22
Windposts
IG Windpost Types
LP Windpost
DU Windpost
U Windpost
Diagrams show a typical wall construction at intermediate floor level showing the three IG Windpost types bolted to a concrete building frame.
Windpost Loadings The loadings quoted for the windposts are derived from an allowable stress value of 181N/mm2 and a deflection limit of span/360 (the lesser of the two resultant figures is used as the quoted figure). Please note the quoted loadings are working/characteristic loads. IG Windpost profiles and dimensions. U Windpost and Ties
LP Windpost and Ties
DU Windpost and Ties
b
b
a
L Shear Tie t
t
a
a t U Tie
b L50/L75/L100 Tie
U Tie
Proportions and performance of U, DU and LP windposts. Windposts can be made to order at various sizes on a project basis. Post taken as a simply supported beam. SWL’s quoted are assuming adequate base and top fixing to concrete. For other substrates please contact the IG Technical Team.
23
Britain’s Most Expensive New Home Lintels: Special Arch Lintels & Colonnade Supports Updown Court, a neo classic Georgian style home designed by US architects John B Scholz, provided enormous opportunities for creative lintel design. Keystone IG designed and manufactured hundreds of Special Arch Lintels and Colonade Supports throughout this magnificent mansion. We also supplied numerous Standard, Heavy Duty and Extra Heavy Duty Straight Lintels. At £70 million it is reported to be the most expensive new home ever built in Britain.
Award-winning Apartment Development Lintels: Special Bow Lintels This project received an UK Award for the “Best Use of a Brown Field Site.”
“The Greggs Quay development called for apartments designed to a very high specification. Creative lintel designs helped bring the original design concept to a reality” Mr Colin Stewart Partner, McAdam Stewart Architects
24
Keystone Group “Special” Projects
“Too often, using ‘special’ designs in a project is an invitation for delays. Using Lintels from Keystone IG however gave my site foreman confidence. The steel lintels required for the unusual window head features were supplied correctly and on time.” Mr Des Savage Director, Savage Bros.
Swing into Action Lintels: Arch, Corner & Bay Lintels
“The prestigious and internationally acclaimed Royal Portrush Golf Club required something special in its design. The help and advice given by Keystone IG’s Technical Department encouraged me to include some quite complex details. I am delighted with what has been achieved.”
“We were pleased to order the special steel lintels and supports required on the Royal Portrush Golf Club from Keystone IG. Their engineer measured and double checked on site exactly what would be required to fit the openings and achieve the desired views of the course. Once agreed, the lintels were delivered to site without delays.”
Mr Kieran Mullan Senior Partner, GM Design
Mr Aubrey Taggart Director, Hugh Taggart & Sons
Restoration Excellence Lintels: Cantilevered Corbelled Brickwork Support System
“When converting this old dwelling into flats, we discovered the timber brickwork support detail on the second floor had deteriorated badly. After several restoration proposals were considered non-feasible, we called in Keystone IG. Their engineer made one site visit and came up with this solution. Five days later they delivered the goods. An excellent product with an excellent service.” Arthur Rogers, A & J Rogers
25
Mission Impossible Lintels: Cantilevered Segmental Arched Corner Lintel Keystone IG produce Special Lintels in 3-5 days... The impossible takes 7.
“Ordering this special cantilevered arched corner was a pleasure. Details like this can often cause expensive delays between site measurement, design and manufacture. Using Lintels from Keystone IG, we alleviated these problems and have now constructed an entrance which was at first thought to be impossible!” Gerry Gray Contracts Manager, Felix O’Hare Contractors
Commercial Creativity Lintels: Balcony Support Details on Large Commercial Project
Plans
“Keystone IG’s ability to design and deliver standard and custom made lintels quickly and efficiently has made this job so much easier. A product and service we highly recommend.” Mr S Jones McAleer & Rushe
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Keystone Group “Special” Projects
Always Accommodating Lintels: Special Bow & Arch Lintels Supplied to Large Commercial Developments
“Ordering the standard and custom made bow lintels on this project was made easy by using Keystone IG’s fast and efficient scheduling service. Once agreed, the lintels were delivered to site without any delays.”
“Keystone IG deliver their lintels quickly and efficiently direct to site. Even the special arched lintels were designed and delivered within five days. This combination of product and service was invaluable to our on-site team.”
Mr K Clarke Louisville Properties
Me C Crossley Glenistar Properties
Make a Grand Entrance Lintels: Venetian Gothic Arch Lintel
“This prestigious hotel development required a lot of brickwork support systems and intrigate lintel details. Ordering these with Keystone IG gave our Contracts Manager peace of mind. Once agreed the lintels were delivered to site without delays.” Vincent McGlew HJ O’Boyle
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Let the Sunshine In Lintels: Arched Sun Lounge Lintel Supplied to Private Development
“Keystone IG’s ‘Can Do’ attitude certainly shone through on this project. We had been told that this couldn’t be achieved without building substantial piers at each corner. IG provided a lintel solution delivered to site in days.” Colin Smyth Contracts Manager
Access All Areas Lintels: Extra Heavy Duty Flat Parabolic Arch Lintel Three acre housing development sites near busy town centres are hard to find and all too often have limited access. When Development Architect Roger Sally approached this access problem he contacted Keystone IG for assistance.
“Keystone IG’s Technical Department designed these 8000mm span Flat Parabolic Arch Lintels to support the apartment above and provide an attractive archway to the landscaped courtyard of townhouses behind.” Roger Sally Teague & Sally Architects
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Keystone Group “Special” Projects
Thatch Magic Lintels: Special Tapered Arch Lintel Keystone IG designed and supplied the feature-piece tapered arch on the front of this house, as well as square bay and corner lintels. Their solution for this bespoke arch was technically brilliant removing the need for complicated and expensive conical formwork.
Exploded Isometric View
Plans
Step It Up Lintels: Heavy Duty Corbelled Lintels
“When presented with this corbelled detail in my client’s brief I contacted Keystone IG’s creative Technical Department. I am delighted with their solution and excellent technical service.” Jennifer Johnston Project Architect, Ostrick & Williams
Exploded Isometric View Reinforced concrete upstand cast in-situ with floor slab Main structural support frame bolted to concrete upstand
Elevation
Section
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Also available from
The UK’s Only Indigenous Roof Window Manufacturer
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Specify Keylite
Centre Pivot Window
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Fire Escape/Access Window
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Electric Operation Windows & Blinds
Combination Flashings & Glazing Options
Standard Window Sizes (nominal wxh) mm Thermal
Toughened glazing system (28mm pane ‘Low E’ Gas Filled) U=1.4 w/m²k
Thermo-Plus Laminated toughened glazing system with UV filter (28mm pane ‘Low E’ Gas Filled) U=1.4 w/m²k
550x780
550x980
660x1180
01T
02T
03T
04T
05T
06T
07T
08T
09T
01HT
02HT
03HT
04HT
05HT
06HT
07HT
08HT
09HT
780x980 780x1180 780x1400 940x1600 1140x1180 1340x980
*U value relates to complete installed window. NOTE: Flashings available
Integral Blind Window The Roof Window... with the blind sealed inside the glass! Blind is permanently sealed within the double glazing unit n Totally dust free environment n Requires NO CLEANING n Always appears new n Is protected from damage n Provides enhanced sun-shading n Improves the U-value of the sealed unit n Is factory fitted n Available for entire window range i.e. Centre Pivot, Top Hung, Fire Escape/ Access and Conservation Windows n Is magnetically operated n
visit www.keylite.co.uk
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Sales Department Hotline: 01633 486460 Technical Department Hotline: 01633 486461 Specials Department Hotline: 01633 486449
Fax: 01633 486465 Fax: 01633 486495 Fax: 01633 486495
IG Limited, Avondale Road, Cwmbran, Gwent NP44 1XY Tel: 01633 486486 Fax: 01633 486465 E-mail: info@igltd.co.uk Website: www.igltd.co.uk
IG Limited is part of the The information contained in this brochure was accurate at the date of going to press. The Company, however, reserves the right, while maintaining the essential performance of the lintels described, to introduce at any time modifications and changes of details as may be considered necessary to improve the products described. Every endeavour will be made to bring this brochure up-to-date at regular intervals, but in order to avoid any misunderstanding, any person interested should enquire of the Company as to whether there have been any material alterations since the date of this publication.