PSBJ May 2014 Supplement

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Roofing, Cladding & Insulation Focus May 2014

Knowledge and expertise

A towering success

Setting the benchmark

Receive full technical support with your roof refurb

Steni panels help hard-to-heat tower block apartments

Complementary materials add texture to new Welsh school

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www.kempersystem.co.uk

Roofing, Cladding & Insulation Focus Sustainable, Solvent-Free and Odourless Kemperol® Liquid waterproofing and roofing at its very best

As the National Theatre raises the curtain on its 50th anniversary season, Kemper System has ensured that its’ Grade II listed building continues to perform by providing the waterproofing membrane and surfacing for a major roof and balcony refurbishment project.

Kemperol®

Performance without the drama...

• Ideal for roof refurbishment, repair and new build roofing projects.

• Complete sustainable, solvent free and odourless waterproofing systems available that can be laid whilst the building is operational.

• Kemperol® is a cold liquid application removing the fire risk of hot works.

• Laid in a single wet-on-wet process to form a totally seamless, durable, fleece reinforced, UV stable, elastomeric waterproofing membrane that cannot delaminate.

• With BBA Approval and a life expectancy in excess of 25 years your roofing budget will never be better spent.

Kemperol Liquid Waterproofing

For more information visit www.kempersystem.co.uk Request a brochure, quotation, NBS specification, CPD or FREE site survey.

Email enquiries@kempersystem.co.uk or call 01925 445532 to discuss your needs.

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Roofing, Cladding & Insulation Focus

Editor Hannah Frackiewicz hannah@mixedmediainfo.com 01622 873229 Managing Director Sam Ball sam@mixedmediainfo.com 01622 873229 Publication Manager Steve Gull steve@mixedmediainfo.com Studio Manager Chris Lilly chris@mixedmediainfo.com Production Ben Bridgeman ben@mixedmediainfo.com Artworker/Sub-editor David Perry david@mixedmediainfo.com Accounts Simone Jones simone@mixedmediainfo.com

Welcome ...to the

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Roofing, Cladding & Insulation Focus

s the weather begins to improve and opportunities open up for significant refurbishment – unoccupied school buildings for example – it seems now is an ideal time to consider much-needed improvement to public buildings.

To avoid costly challenges and errors, correct specification from the outset is essential and key to long-term performance. Sourcing from a trusted supplier that can guarantee a full technical support service is also integral to the success of your refurb. However, for buildings that will remain live working environments, a fast and effective solution from an experienced supplier should be your first port of call.

PSBJ’s timely Roofing, Cladding & Insulation supplement offers advice on various scenarios, from a live crematorium installation that required a watertight solution throughout continued services, to the over-cladding of a large-scale tower block installation which is now benefitting from increased energy efficiency.

For more information on any of our contributors or if you wish to comment on a particular story featured within this edition, then please do not hesitate to get in touch at the usual address.

Terms and Conditions:

Contributions are invited and when not accepted will be returned only if accompanied by a fully stamped and return addressed envelope. No responsibility will be taken for drawings, photographs or literary contributions during transmission or in the editors hands. In the absence of an agreement the copyright of all contributions, literary, photographics or artistic belongs to Mixed Media Information Ltd. The Publisher accepts no responsibility in respect of advertisements appearing in the magazine and the opinions expressed in editorial material or otherwise do not necessarily represent the view of the publisher. The Publisher does not accept any liability of any loss arising from the late appearance or non publication of any advertisement.

Front cover:

Hannah Frackiewicz Hannah Frackiewicz - Editor, PSBJ Magazine

Contents 5

Access all areas: Install some surface support over waterproofing membranes with Decktile’s Levato Mono paver system – suitable for both flooring and roofing.

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Restore and renew: When embarking on a roof refurb, complex challenges may arise. Turn to Sika for correct specification and a full technical support service.

10 A tribute to roof systems: A Welsh school has reached grade A status thanks to advanced insulated panel technology. See Pg 18.

Telford Crematorium in Shropshire has been reinvigorated thanks to a new Bituminous Strip Slate roofing system from Langley Waterproofing Systems.

12 Improved weather tightness: Three previously hard-to-heat tower blocks of apartments in Aberdeen have been refurbished with Steni cladding panels.

18 Setting the standard: BENCHMARK’s Karrier range has helped a Welsh school achieve a BREEAM ‘Excellent’ rating which will reduce its energy bills for years to come.

Mixed Media Information Pear Platt, Woodfalls Farm, Gravelly Way, Laddingford, Kent, ME18 6DA Tel: 01622 873229 Fax: 01622 320020 www.psbj.co.uk www.mixedmediainfo.com

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LEVATO MONO - porcelain paver system Roofing, Cladding & Insulation Focus

Just a few of the benefits at a glance: • ‘Floating floor’ – installation over single ply membranes • Eternal product - zero maintenance required – offering massive over-life savings • Highly abrasion and stain resistant • Highly slip resistant ; R11 and achieved up to +65 wet in the BS pendulum test • Lightweight – 45kgs per m2 • High load bearing and impact resistance • Timber & stone effects ; 40+ finishes available • Ideal for balconies, roof terraces and piazzas, for both commercial & residential use • Completely non porous • Fire & frost proof • Height-adjustable support from 7mm up to 550mm

The Levato Mono porcelain paver system is the pinnacle of external raised flooring technology; enabling the specification of lightweight, slip resistant and attractive raised flooring solutions, combining incredible technical properties with uncompromising aesthetics; making them the ideal choice for commercial and domestic use alike.

t: 0845 2700 696

e: info@thedecktileco.co.uk

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Public Sector Build Journal

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Roofing, Cladding & Insulation Focus available allowing for seamless visual transition between internal and external spaces.

Available in 40+ plus colours and finishes in both ultra-realistic timber and stone pavers, combining 3D printing and mould making technology, to reproduced identical copies of natural materials and with up to 30 prints available for each paver range, once laid, the eye is unable to discern any replicated pattern allowing for a completely natural looking surface.

Recently specified for external dining areas at London Zoo as well as for the new Portico Terrace at the Theatre Royal Drury Lane; one of the company’s Levato Mono sandstone effect paver ranges was considered so similar to natural sandstone material, that it was sanctioned for use on this grade 1 listed building by English Heritage.

Used in conjunction with height adjustable fixed head or self-levelling pedestals or fixed height paver support pads, the Levato Mono system makes it possible to create perfectly level surfaces over uneven sub-surfaces. Ideal for installation over all waterproof membranes Decktile’s support systems cover height ranges from 7mm to 550mm and incorporate a patented self-levelling slope correction facility with the convenience of height adjustment after the pavers are installed.

The Levato Mono system makes it possible to create perfectly level surfaces over uneven sub-surfaces

Raise the roof

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The Levato Mono paver system is the pinnacle of external raised flooring technology; enabling architects to specify lightweight, slip resistant and attractive raised flooring solutions, which combine incredible technical properties with uncompromised aesthetics, making them the ideal choice for commercial and domestic use alike. igh load and impact resistance; extreme wear and scratch resistance; frost and fireproof; colour fast and extremely resistant to staining;

resistance to mould and algae growth – these qualities ensure an extremely low maintenance and trouble free flooring solution.

Matching internal tiling options are also

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www.thedecktileco.co.uk info@thedecktileco.co.uk ( 0845 2700 696

Benefits at a glance • ‘Floating floor’ – installation over single ply membranes • Eternal product – zero maintenance required – offering massive over-life savings • Highly abrasion and stain resistant • Highly slip resistant; R11 and achieved up to +65 wet in the BS pendulum test • Lightweight – 45kgs per m2 • High load bearing and impact resistance • Timber & stone effects; 40+ finishes available • Ideal for balconies, roof terraces and piazzas, for both commercial and residential use • Completely non-porous • Fire- and frost-proof • Height-adjustable support from 7mm up to 550mm

Decktile’s support systems cover height ranges from 7mm to 550mm and incorporate a patented self-levelling slope correction facility

Public Sector Build Journal

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Roofing, Cladding & Insulation Focus

ROOFING SYSTEMS

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THE ONLY ROOFING PARTNER YOU NEED Langley has a proud history of combining technically sound roofing systems with unrivalled expertise and high-quality workmanship. Whether a design is straightforward or specialist, we take great pride in our ability to provide an end-to-end approach to each project, from initial consultation and design through final installation and after sales care. With our reputation cemented over five decades, we’re the roofing specialist both specifiers and contractors choose to work with, again and again.

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Roofing, Cladding & Insulation Focus calculations, condensation risk analysis, and whole life cost evaluations can also be included upon request. All of this is vital when ensuring you make an informed decision on your choice of roofing system and, if required, insulation upgrade.

On top of all the technical considerations, the UK roofing industry also faces many environmental and economic challenges – whether it’s higher costs for raw materials and energy, faster growth in emerging economies leading to greater global competition, or the pressures faced by architects and specifiers to design sustainable buildings. As such it is vital that manufacturers continue to develop innovative solutions that support the industry in its goal to becoming ‘sustainable’.

Ideally all manufacturers should invest heavily in in-house research and development teams, which enable them to anticipate and respond to the future’s major challenges – such as energy and resource efficiency, climate change, water scarcity, efficient infrastructure, and air quality.

At Sika, the company has invested in Life Cycle Assessment of its roofing systems so that it can demonstrate not only potential cost savings to the customer, but also the green credentials of its products over the life of the membrane.

Life Cycle Assessment (LCA) is a standardised method to assess and compare the inputs, outputs and potential environmental impacts of products and

Solar panels on a Sika-Trocal roof

Refurbishing flat roofs condition of the substrate. A photographic record will be made and, where deemed appropriate, investigative methods such as core samples and pull out tests will be used to confirm the condition of the existing roof.

A bespoke specification is then produced from the results of the roof survey, including project specific detail drawings, tapered insulation plans and roof layouts (where required), U-value calculations, wind uplift

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Following the recent economic downturn and a slowing in the pace of new build projects, refurbishment has become the only solution for many people - offering a more cost effective option to restore and renew rather than build afresh. But refurbishment can be difficult and provides its own set of complex issues, not least when it comes to roof refurbishment.

E

nsuring you choose the right waterproofing solution for your roof is vital, but just as important is the support and knowledge provided by the roofing system manufacturer. Sika Liquid Plastics, Sika Sarnafil and Sika-Trocal all offer a range of roof refurbishment solutions – whether it’s single ply or liquid applied membranes – and decades of technical expertise.

Depending which system you choose Sika can also offer a full technical service, bespoke detail drawings and wind uplift calculations, as well as regular inspections by the nationwide team of Field Technicians.

Before a project begins a comprehensive roof survey will be conducted to determine which system is most suitable for the project, during which a core sample will be taken to assess the current roof construction and

A Sika Sarnafil refurbishment project at Marischal College

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Roofing, Cladding & Insulation Focus

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Roofing, Cladding & Insulation Focus

• Reducing carbon costs of the roofing system • Reducing waste because the existing system remains in situ • Minimising disruption to the operation of the building during installation • Providing a cost effective method of increasing the design life of the roofing system

Sika Liquid Plastics, Sika Sarnafil and Sika-Trocal all offer a range of roof refurbishment solutions – whether it’s single ply or liquid applied membranes

years”. Sika Liquid Plastics liquid membranes are an outstanding refurbishment solution, allowing an extension to the lifetime of existing roofs. They may simply be applied over the waterproofing layer as they are compatible with most materials and can be recoated at the end of their life expectancy to extend the service life even further.

Investing into quality is a smart choice

– it means saving more and for longer; saving costs as well as saving energy and resources due to fewer replacements and less maintenance of the roofing system over time.

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services over their life cycle.

There are several different impact categories and resource indicators which can be assessed. As a standard approach, Sika evaluates all impact categories and resource indicators deemed as important according to the relevant standards. For roofing, Cumulative Energy Demand (CED), Global Warming Potential (GWP), and Photochemical Ozone Creation Potential (POCP) are considered to be the most relevant.

So how can roofing systems contribute to sustainable construction? Sika provides roofing systems that use less energy and resources by comparison with competitive technologies, as well as offering a low Global Warming Potential, which also means a reduced carbon footprint.

Upgrading the thermal performance of existing buildings is also an ideal way of saving energy and will help building owners to comply with UK Building Regulations.

A thermal upgrade can be easily achieved by installing additional insulation over the existing substrate and completing with a new waterproofing system. By using the existing build-up as a base, benefits can also be gained by:

8 www.sarnafilplus.co.uk sarnafilroofing@uk.sika.com ( 01707 394444  enq 078 *

However the above can only be achieved if a satisfactory comprehensive survey has been completed to determine the condition and suitability of the existing substrate. This is something that Sika takes very seriously and its top end guarantee not only covers its own product, but also the suitability of the existing substrate – something that most manufacturers cannot offer.

Making the right choice The durability of building materials is a key driver for sustainable building construction.

External studies have documented the outstanding service life of Sika Liquid Plastics, Sika Sarnafil and Sika-Trocal roofing systems, with the British Board of Agrément certifying some Sarnafil membranes to have a life expectancy that is “in excess of 40

A Sika Liquid Plastics roof refurbishment at Cambridge University’s Department of Geography

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Roofing, Cladding & Insulation Focus

Versatile glass fibre reinforced bitumen strip shingles come in a variety of natural shades to mimic traditional roof finishes

SPV Group worked intelligently throughout the refurbishment to meet the challenges and the project was completed two weeks early

A tribute to roofing systems Nominated for the 2000 RIBA Sterling Prize Award, and Midlands category winner, the architecturally recognised Telford Crematorium in Shropshire has been reinvigorated thanks to a new Bituminous Strip Slate roofing system from Langley Waterproofing Systems Ltd.

10 Public Sector Build Journal

resistance against freezing, wind, hail and sleet.

To round off the warm roof system, Paravapo SBS vapour control layer, insulation to current regulations and Adepar JS bituminous underlay were used to provide the waterproof foundation for the shingle layer.

Detailed planning Due to the important service that the crematorium provides, the facility remained open to the public throughout the refurbishment and placed site restrictions on SPV Group who carried out all works during weekends only; it was therefore essential that the site remain watertight at all times.

This was achieved through detailed planning and the use of a systematic approach – operatives stripped one section of the roof, laying the new deck and applying

the vapour barrier before moving on the next area. This approach ensured a high quality of finish while remaining courteous and considerate to visitors.

Despite the limited timescale of eight weeks and dependency on weather conditions, SPV Group worked intelligently throughout the refurbishment to meet the challenges and the project was completed two weeks early while complying with all relevant health and safety regulations.

Speaking of the finished project, Jane Baker, Manager of Telford Crematorium says: “The new roof really is fantastic.

We’ve had a number of positive comments from the public, funeral directors and even members of staff on its appearance.”

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W

hen the existing large sloping cedar shingle roof began to fail, approved contractors SPV Group secured the works and implemented the Langley solution, which would not only match the look and feel of the previous roof, but would also offer superior thermal and waterproofing qualities.

Langley’s experts specified 600m² of bituminous Strip Slate shingles for their appearance, ease of installation and excellent weather resistance.

These versatile glass fibre reinforced bitumen strip shingles come in a variety of natural shades to mimic traditional roof finishes. For this project, a variety and hue were chosen to be in keeping with the existing redundant cedar shingles.

Made up of rot-proof natural components as well as being treated against algae and moss, the shingles also offer excellent

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8 www.langley.co.uk enquiries@langley.co.uk ( 01327 704778

Roofing, Cladding & Insulation Focus

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BROWSE | SPECIFY | SOURCE | DIGEST The smarter way to access news and products for the sustainable building market.

With its easy-to-navigate format, users can benefit from a variety of useful tools, such as the magazine’s latest issue, digital archive, suppliers and newsbank. The App is also synced with SBP Library (www.sustainable-buildingproducts.com) providing an essential specification portal. | Bespoke, reader-friendly features tailored to professionals on the move | | Timely industry news delivered at the touch of a button | | Manage print & digital subscriptions |

Roofing, Cladding & Insulation Focus

Both the Nature and Colour panels are resistant to weather and climate, impact, moisture and water, chemicals, heat and UV light

A towering success

moisture and water, chemicals, heat and UV light. They also feature excellent fire performance and environmental credentials.

A report to the city council’s finance and resources committee said: “The proposed over-cladding of these blocks would increase the energy efficiency of hard-to-heat homes

Work has now drawn to a close on the £3.6m refurbishment with Steni cladding panels of three residential tower blocks in Aberdeen.

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orven and Grampian Courts, and the sheltered housing scheme Brimmond Court, which were built in 1969/70 in the Balnagask area of the city, had been identified for a thermal upgrade under the city council’s housing capital programme which provides the catalyst to deliver many of the objectives in the housing business plan.

Over-cladding the three towers comprising 156 rented and privately-owned flats with external solid wall insulation and a mixture of a total of almost 8000m2 of Steni’s Nature and Colour rainscreen panels was carried out by Highrise Solutions for main contractor Lovell.

Some 6865m2 of Steni’s Nature panels were used on the majority of the elevations of the 13-storey blocks. Nature panels feature a surface of aggregated natural stones from Europe and are available in 17 different natural stone colours and up to five grades in many of

12 Public Sector Build Journal

these colours.

At Balnagask, they were fabricated by panel supplier CEP Architectural Facades, in more than 3000m2 of beige and the fine grade for the east and west elevations and in almost 4000m2 of white in the coarse grade for the south and north elevations of the reinforced concrete structures.

The 850m2 of matt lilac Colour panels were then rivet-fixed, like the Nature ones, onto an aluminium rail support system, under new window pods. These panels feature a smooth surface of 100% acrylic that is electron beam cured without the use of solvents. They are available in 60 standard colours and almost any colour from the NCS-, RAL- or BSsystem as well as three gloss levels.

Structurally sound Both the Nature and Colour panels are resistant to weather and climate, impact,

Steni panels are suitable for a wide variety of public sector projects

Roofing, Cladding & Insulation Focus in one of the city’s most vulnerable areas.

It would ensure that these blocks remain structurally sound for the next 30 years or so, and would, in conjunction with the provision of district heating, reduce the impact of fuel poverty to the residents.”

Far from the next 30 years or so, Steni’s Nature and Colour panels are designed to perform for more than 60 years. In fact, Steni recently marked almost 50 years of manufacturing with the launch of a peerless 40-year functional warranty.

This has been extended from 25 years on both Nature and Colour panels, which allow a modern, dry-trade approach to cladding, and dwarfs the typical guarantees of 10 to 15 years that are offered on traditional render systems.

A council spokesman said: “Grampian, Brimmond and Morven Courts were built in

the early 1970s when electricity was cheap and thermal insulation standards were poor and as the years passed these homes became very expensive to heat. We needed to upgrade them to increase their energy efficiency and help reduce residents’ bills.

“The external walls are now three times better at retaining heat than they were prior to the works. We have also extended our award-winning district heating scheme, which is currently the most cost-effective means of heating high-rise blocks, to these courts.”

He added: “The Steni panels play an important part in the project by improving the weather tightness of the building fabric and to protect the existing reinforced concrete structure and precast concrete cladding panels from the elements.”

Steni panels were also used to over-clad Steni’s Nature and Colour panels are designed to perform for more than 60 years

another three high-rise residential blocks at Seaton in Aberdeen.

Steni panels are suitable for a wide variety of public-sector projects in the healthcare, education and commercial sectors as evidenced in the following case studies.

Channelling patients' ebb and flow Steni’s Colour panels are helping to lighten the mood for patients and visitors to the £40m critical care complex at Ulster Hospital in Dundonald, Belfast.

The Colour panels were specified by specialist contractor Hynds Architectural Systems in matt white for the soffits of the state-of-the-art building.

The panels are suspended from the main slab and feature illuminated inserts which light up a wraparound overhang at night, casting a soft and reassuring glow over the building’s perimeter.

The PRP project for South Eastern Health and Social Care Trust was designed by lead consultants Todd Architects in association with Watkins Gray International and built over three years by main contractor Gilbert Ash. The building extends over four principal floors, with the lower two levels covering much of the footprint of the confined site, and the upper two levels split into two wings divided by a landscaped courtyard that introduces light into the depth of the plan.

Externally, the palette of materials established by Todd Architects to direct future development in the hospital is

▼

Some 6865m2 of Steni’s Nature panels were used on the majority of the elevations of the 13-storey blocks

Public Sector Build Journal 13

Roofing, Cladding & Insulation Focus further articulated by projecting zinc-clad elements that distinguish the first-floor theatres and second-floor administration from the other floors in the building.

Designed to increase the number of theatre and recovery beds while improving the flow of patients and staff facilities, the complex also allows for future expansion and the expected increase in demand for services over the next 15 years.

The critical care complex, along with new renal and maternity units, a refurbished elderly care unit, main stores and a terraced car park, represent phase A of the £400m, 10-year redevelopment of the 50-year-old Ulster Hospital.

Meeting a cladding challenge The robustness of Steni’s Colour panels has helped meet the architect’s design for the colourful exterior of the redeveloped City School in Sheffield.

Some 3000m2 of the Colour panels, in a total of eight shades, has been used on the facade and main entrance soffit of Phases 1 and 2 of the £22m Building Schools for the Future (BSF) project.

Phase 1, the new build element, incorporates a new dining hall, main hall, learning resource centre and visitors’

Grampian, Brimmond and Morven Courts were built in the early 1970s when electricity was cheap and thermal insulation standards were poor

reception as well as maths, science, ICT and humanities classrooms.

Phase 2 comprised part refurbishment

of the existing buildings, also by main contractor VINCI Construction UK. This involved stripping them back to their original steel structures and high-level stone cladding and installing new envelopes.

New lease of life

14 Public Sector Build Journal

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The Colour panels at Ulster were specified by specialist contractor Hynds Architectural Systems in matt white for the soffits

The redeveloped school was designed by architects at HLM to be inspiring to all, including the community which has access to its facilities after school hours. Students were involved in looking at key factors in the planning process such as design, sustainability, landscape and technology.

Steni’s lightweight panels were installed in long horizontal and vertical bands and in colours ranging from light yellow to dark grey by specialist sub-contractor NG Developments.

The rainscreen element used structural adhesive on an aluminium sub-structure and the remainder was made up into Steni-faced composite panels and glazed into a low-rise aluminium glazing system.

NG’s Ian Dunn said: “The rainscreen cladding was particularly challenging due to the numerous differing colours and especially the sizes of the panels required for the architect’s scheme. The panels were structurally bonded to the carrier system which was carried out under specific weather conditions and within tight temperature

Roofing, Cladding & Insulation Focus

WHAT IS THE TOTAL COST OF ROOF FAILURE? Roof refurbishment is about more than just ‘fixing’ the leaks. Have you ever considered what would happen if that roof failed? What is the potential cost to the inhabitants of that building or workplace? And what does it mean for you as the specifier?

Everyone wants to work with an expert, which is why Sika Sarnafil is the specifier’s system of choice.

We’ve been providing expert guidance and single ply roofing membranes for over 50 years.

During that time we’ve developed an enviable knowledge of roof refurbishment and tailored our Sarnafil Plus package to meet the needs of all projects - large and small. That includes ensuring complete peace of mind with a full technical service, bespoke detail drawings, wind uplift calculations, and regular installation inspections by our technical experts. Each roof project also begins with a comprehensive condition survey, allowing us to provide a single point guarantee covering against design, materials, and installation.* Why take the risk when you can trust your project in the hands of the experts? *Contact us to find out more or for a complimentary roof survey.

For further details: 0800 0285123 www.sarnafilplus.co.uk Online Enquiry 081

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Roofing, Cladding & Insulation Focus

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format, users can benefit from a variety of useful tools, such as the magazine’s latest issue, digital archive, suppliers and newsbank. The App is also synced with SBP Library (sustainablebuildingproducts.com) providing an essential specification portal.

Roofing, Cladding & Insulation Focus and moisture levels.

“But the Steni panels are a robust product which helped with the installation of the larger panel areas.”

NG Developments’ work on Phase 1 was rewarded with a Contractor of the Month Safety Award for two consecutive months from VINCI Construction UK. VINCI Construction UK Project Manager John Hartley said: “The windows and cladding package was technically challenging and involved high-risk activities, particularly working at height.”

Colour to wintry Widnes Colour panels, in olive, grey, light blue and dark blue, have been used to over-clad the brick walls of an internal courtyard at Halton Borough Council’s Municipal Building in Widnes

Lord architects.

Work by specialist sub-contractor Churchmore for main contractor Globe Management Services took four months, being relatively unaffected by the wintry weather as unlike render, it is a dry trade.

As well as giving the elevations a facelift, the panels have helped to deliver improved

thermal performance. For between the elements of the aluminium support grid, onto which the panels were fixed using structural adhesive, is insulation.

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Four colours of Steni’s Colour panels have brought a new lease of life to some local authority offices.

Some 238m² of the Colour panels, in olive, grey, light blue and dark blue, have been used to over-clad the brick walls of an internal courtyard at Halton Borough Council’s Municipal Building in Widnes which was refurbished externally and internally.

The Steni panels were fitted on the partglazed two-storey building in a pattern of vertical strips in two lengths but a constant 295mm width to a design by Austin Smith

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www.steni.co.uk info@steni.co.uk ( 01978 812111

The robustness of Steni’s Colour panels has helped meet the architect’s design for the colourful exterior of the redeveloped City School in Sheffield

Public Sector Build Journal 17

Roofing, Cladding & Insulation Focus

Welsh school sets the benchmark Architects specified nearly 3000m2 of BENCHMARK Roofliner with a Keybemo Standing Seam finish for the roof

A Welsh school has reached grade A status thanks to advanced insulated panel technology from the BENCHMARK range.

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sgol Bro Alun is a new Welsh Medium school in Gwersyllt, near Wrexham.

Opened in September 2013 at a cost of £5.9m, the school provides space for 240 children aged between 3 and 11.

Complementary materials The new build is a 2000m2 single storey, steel frame and cladded building with external car parking and play spaces. Architects specified

nearly 3000m2 of BENCHMARK Roofliner with a Keybemo Standing Seam finish for the roof, with 996m2 of BENCHMARK Karrier Engineered System for the walls, to support the facades. A range of facade finishes were chosen to complement the build, including Ceramic Tile (terracotta), Ceramic Granite, Oak Timber and Coloured Glass (green shade). The range of colours, textures and finishes used gives new pupils a smart and

inspiring space to learn.

Contractor Harry Fairclough Construction was brought into work on the build.

Dave Harry, Commercial Manager at the company comments: “Working directly with BENCHMARK and their approved installer RH Roofing and Cladding, meant all aspects of their team were on hand throughout the course of the works, providing a level of service that mirrored the high quality of the BENCHMARK products supplied and the seamless installation on site. To this end both ourselves and the client are delighted with the final end result and the impact BENCHMARK has had on the building finish overall.”

Unrivalled performance

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The plan for the build was dictated by a number of different factors, ranging from educational building standards, through sensitivity to the local area, to compliance with the council’s energy efficiency guidelines.

Fraser Brown, Sales Director for BENCHMARK, explains: “BENCHMARK Karrier offers unrivalled thermal and air leakage performance versus the system’s overall thickness. This has contributed to the school’s award of a BREEAM ‘Excellent’ rating, and should reduce its energy bills for years to come, a vital benefit as prices rise. Architects and specifiers can choose BENCHMARK, safe in the knowledge of the superior performance and flexibility it offers.”

www.kingspanbenchmark.com info@kingspanbenchmark.com ( 01352 716100  enq 084 8

The range of colours, textures and finishes used gives new pupils a smart and inspiring space to learn

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Roofing, Cladding & Insulation Focus

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THINK OPTIONS, THINK STENI Steni Nature façade panels are just so versatile! Fibreglass-reinforced composite panels with 17 natural stone finishes and five grades of aggregate, they give you all the looks of render with none of the drawbacks.

For example, they have better water, UV and impact resistance; they can be installed in all weathers; and they carry a unique 40-year warranty, with a life expectancy of 60 years. So whatever your project needs, Steni Nature’s the right choice.

Steni. Distinctive looks, outstanding value

For enquiries and technical advice call 01978 812 111

www.steni.co.uk Steni UK 1-4 Vauxhall Industrial Estate, Wrexham, Clwyd, Wales, UK LL14 6HA

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