Structural Timber Magazine issue 18 - Special Edition 2018

STMAG

SPECIAL EDITION

Structural Timber Magazine.co.uk

The latest in structural timber building design and technologies

2018 STRUCTURAL TIMBER AWARDS JUDGES CHOICE WINNER OF WINNERS THE MACALLAN DISTILLERY

P18

P20

P68

Touch of Genius

Winning Projects

Timber Connectors

The architectural and engineering approach behind The Macallan Distillery

All the 2018 winners in more detail

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WELCOME TO Welcome to our annual Special Edition of ST Magazine that showcases the finest in timber construction and features technology celebrated at the 2018 Structural Timber Awards.

FOLLOW US ON TWITTER UNDER: twitter.com/STMagUK ADVERTISING ENQUIRIES PLEASE CONTACT: MARK AUSTIN // T: 01743 290002 E: mark.austin@structuraltimbermagazine.co.uk BACK ISSUES VISIT: www.structuraltimbermagazine.co.uk FRONT COVER The Macallan Distillery PRINTED ON: PEFC 16-33-576 paper stock by Buxton Press

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by Radar Communications in association with the Structural Timber Association: ©Radar Communications Ltd. FOR STA ENQUIRIES PLEASE CONTACT: BOB DAVIS // T: 01259 272140 E: bob.davis@structuraltimber.co.uk DISCLAIMER: The content of Structural Timber Magazine does not necessarily reflect the views of the editor or publishers and are the views of its contributors and advertisers. The digital edition may include hyperlinks to third-party content, advertising, or websites, provided for the sake of convenience and interest. The publishers accept no legal responsibility for loss arising from information in this publication and do not endorse any advertising or products available from external sources. No part of this publication may be reproduced or stored in a retrieval system without the written consent of the publishers. All rights reserved.

Production

The 2018 Awards once again celebrated all that is good in timber technology and as everyone that attended knows saw a bigger event than ever before. As in every year, competition was fierce with 16 categories, nearly 250 entrants and 94 companies shortlisted. The list of finalists not only includes celebrated architects, engineers, clients and developers but also less well-known disruptors who are taking the industry to another level, by creating unique and highly creative projects.

Inside this issue you will find an overview of the winning projects, products and organisations. The judging panel where overwhelmed by the quality and standard of this year’s entries and it is hugely encouraging to see so much strength and imagination in the industry. Throughout this publication we have profiled the winners in detail that the judges felt just edged ahead of the other entries in each category.

The Awards shine a spotlight on the future of timber and sustainable construction generally. Contemporary engineered timber in particular has become a sophisticated structural material with an unmatched versatility. The rise in the stature of the

Awards also reflects the impressive innovation and growth within the timber sector revealing a rich vein of stunning architectural design and engineering excellence.

Some final thanks. Firstly to the judges, without their valuable time, dedication and commitment, the very high standards of integrity this event holds close would not be possible. Their final decisions are not made lightly. Secondly, to all those that enter – we know tackling our entry forms takes a great deal of effort – so every submission is of enormous value and a huge debt of gratitude to all those that take the time to champion what they do with timber at the highest level.

Thirdly and most importantly, a massive thanks goes to our event sponsors. These fantastic organisations make everything possible and the event simply wouldn’t happen without them. Their contribution to the success of the Awards and their ongoing support for 2019 is greatly appreciated.

Gary Ramsay | Consultant Editor E: gary.ramsay@structuraltimbermagazine.co.uk

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CONTENTS

THIS ISSUE...

P18 | COVER STORY -

THE MACALLAN DISTILLERY Since its unveiling earlier in the year, the Macallan Distillery has quickly become an iconic, multi-award winning building, showcasing engineered wood via the most complex timber roof structure ever built in the UK. The scheme swept the board with the Judging Panel - all hugely impressed on virtually every level.

P20 | SOCIAL HOUSING PROJECT OF THE YEAR The Ellerslie Road development is Scotland’s tallest timber building and first multi-storey CLT building and also the subject of two academic research programmes.

P24 | PRIVATE HOUSING PROJECT OF THE YEAR St Wilfrids Walk in Selby consists of 53 timber frame units and was a pilot project not only for the Yorkshire East Division of Barratt Homes but for the Barratt Group as a whole.

P28 | CUSTOM & SELF-BUILD HOUSING PROJECT OF THE YEAR Skyfall is a modern architectural home designed to maximise the potential of its stunning waterfront location in West Sussex and is a family residence with exceptional low energy standards.

P32 | BEST SIPS PROJECT As part of the 21st Century Schools programme, Denbighshire County Council and the Welsh Government relocated two primary schools to a single new school site at Glasdir in Ruthin.

P33 | BEST TIMBER FRAME PROJECT Designed in conjunction with Stewart Milne Timber Systems, St Wilfrids Walk consists of 53 timber frame units and was an opportunity to trial Barratt’s timber frame product range.

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P34 | BEST SOLID WOOD PROJECT The construction of three new Waterside Lodges at Center Parcs Elveden Forest is an ambitious architectural and engineering project utilising Metsä Wood’s Kerto® laminated veneer lumber (LVL).

P38 | EDUCATION PROJECT OF THE YEAR Glulam and CLT is at the centre of a new £8 million building housing a 25m long six-lane swimming pool and teaching area at Freemen's School in Ashtead.

P46 | PROJECT OF THE YEAR Bloomberg’s European HQ comprises two integrated buildings over a common basement podium island site and is setting new standards in quality of design and sustainability.

P47 | PIONEER AWARD For more than two decades Urban Splash has worked with world-class architects to pioneer regeneration using good design, restoring old buildings and creating new, sustainable communities.

P48 | INSTALLER OF THE YEAR For the Macallan Distillery, Wiehag used their preferred installer L&S Baucon to install this ultra-complex engineered timber roof.

P50 | PROJECT/CONSTRUCTION MANAGER OF THE YEAR Mark Greenley, Site Manager for the St Wilfrids Walk timber frame site, performed above and beyond expectations and played a pivotal role in the overall success of the project.

P54 | ARCHITECT OF THE YEAR The design and construction of the new Sports and Learning Building for the Stephen Perse Foundation was driven by the constraints of the sensitive urban site and a live school environment.

P56 | CONTRACTOR OF THE YEAR Abbey Wood is an entirely new station on the South East Spur of Crossrail and is symbolic not only for its regeneration effects but also its use of solid timber.

P40 | COMMERCIAL PROJECT OF THE YEAR The Import Building is a new destination workplace that has been specifically designed to appeal to the world’s fastest growing and dynamic businesses and is an exceptional example of CLT and glulam.

P42 | RETAIL & LEISURE PROJECT OF THE YEAR The location of Center Parcs Elveden Forest, meant careful consideration had to be given to the material used in the structure – with CLT too heavy to be practical on the side of a lake – laminated veneer lumber (LVL) became the most suitable alternative.

P44 | LOW ENERGY PROJECT OF THE YEAR Hampshire Passivhaus is an L-shaped building that effortlessly encloses a south-facing ‘outdoor room’ and provides privacy from multiple neighbours.

P60 | CLIENT OF THE YEAR Setting new standards and raising the bar for quality of design and sustainability (certified LEED Platinum and BREEAM Outstanding), Bloomberg’s European HQ project challenges the norm.

P64 | ENGINEER OF THE YEAR The Macallan Distillery is one of the most challenging timber structures ever built in the UK. Arup and RSH+P developed the complicated scheme design for the roof structure.

P66 | PRODUCT INNOVATION AWARD The Chippenham bungalow was a large scale project that demonstrated the ability to take an existing property and enhance it to add a new timber-based roof structure.

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JUDGING PANEL With nearly 250 outstanding submissions, the 2018 Structural Timber AwardS judges had an onerous job of selecting both the finalists and the overall winners in each category. We would like to take this opportunity to say a big thank you to all those that took part.

ANDREW CARPENTER

ANDREW KINSEY

ANDREW ORRISS

TIM SNELSON

Structural Timber Association

Mace

SIG360

Arup

CHARLIE LAW

DANIEL RIDLEY-ELLIS

DARREN RICHARDS

ANDREW WYLIE

Sustainable Construction Solutions

Napier University

Cogent Consulting

Buro Happold

IAN DACRE

JEREMY ENGLISH

GARY RAMSAY

KEVIN RILEY

RLB

Sรถdra Timber

Structural Timber Magazine

Stora Enso

ROSI FIELDSON

PETER WILSON

Simons Group

Timber Design Initiatives

To submit your interest in joining the 2019 Structural Timber Awards Judging Panel, email: amy.pryce@structuraltimberawards.co.uk

6 | www.structuraltimbermagazine.co.uk | STMAG

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SPONSORS The Structural Timber Awards would not be possible without the financial contributions and support of the fantastic event sponsors – so we would like to take this opportunity to say thank you to those companies.

Event Sponsors

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Book your 2019 sponsorship package now and take advantage of the pre-event Marketing campaign - www.structuraltimberawards.co.uk

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ST AWARDS 2018

Celebrating the Simply Outstanding With a bigger event than ever before and officially sold-out, the Awards took place during UK Construction Week at the National Conference Centre, Birmingham. As in previous years the gala event aimed to reward all those in the construction industry taking timber to a more imaginative and sophisticated level.

attended this event will know – his infectious humour is just one of the reasons this is a fantastic night out. He helps the audience to celebrate the great, the good and the simply outstanding in his relaxed, slightly irreverent and entertaining fashion.

Looking around the room before the winners were announced, it was evident that the Structural Timber Awards have not only grown in popularity but also in stature.

There is a lot at stake with the heightened interest in offsite technology across the UK – something that has now taken on a new lease of life. All concerned knew that picking up a trophy on the night not only generates a great deal of media attention but also the honour of being appraised by a respected judging panel of peers and industry experts.

The abundance of outstanding projects and many innovative products entering the market mean it is no easy task for the judging panel who do not enter into the process lightly – a great deal of time is taken by all those involved in the final decisions.

The 2018 Structural Timber Awards surpassed all previous events in terms of the calibre of entries and attendance.

Always a relaxed affair, the Awards were hosted by the inimitable compere Mark Durden-Smith and as anyone who has

10 | www.structuraltimbermagazine.co.uk | STMAG

With nearly 250 outstanding submissions, this year’s Award judges had an onerous job of selecting the winners. The big winner on the night was The Macallan Distillery project, which scooped the Winner of Winners plus the Installer and Engineer of the Year awards. Since its unveiling earlier in the year, the Macallan Distillery has grabbed international construction headlines for its incredible use of engineered timber and its architectural and engineering expertise. It is situated in an amazing setting in the Scottish Highlands and is also a truly remarkable building with a raft of energy efficiency additions beyond the use of certified timber.

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One of the judges commented: “The Macallan Distillery project and the precision installation of the engineered timber gridshell roof should be highlighted as a case study, par excellence, to the entire structural timber sector.”

The head of the judging panel and Chief Executive of the Structural Timber Association (STA), Andrew Carpenter said on the night: “We are here to say thank you to everyone that’s involved and we are here to say well done to those that have entered the competition and won the various categories throughout the UK construction industry.

The depth of expertise across all categories was impressive and the exceptional number of entries clearly demonstrates the upturn in the industry. The Structural Timber Awards is a high-point in the construction industry calendar and it is truly inspiring to see so much activity in the sector.”

“All the great and the good of the timber industry are here celebrating the expansion of their sector,” said Rosi Fieldson from Simons Group. “I have been to three of these Awards now and every year there are more and more people here and the buzz gets bigger and bigger every time.”

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Innovation in timber engineering

ST AWARDS 2018 For details on sponsorship packages and promotional opportunities and to register interest to either sponsor the 2019 Structural Timber Awards or to enter your project into the awards, please contact Amy Pryce, email: amy.pryce@radar-communications.co.uk

The full list of Award Winners for 2018 are: • Architect of the Year: Chadwick Dryer Clarke for The Stephen Perse Foundation Sports & Learning Building • Client of the Year: Bloomberg LLP for Bloomberg European HQ • Commercial Project of the Year: Heyne Tillett Steel & Studio RHE for The Import Building • Contractor of the Year: Balfour Beatty for Abbey Wood • Custom & Self-Build Project of the Year: Streif UK for Skyfall • Education Project of the Year: Eckersley O'Callaghan for Freemen's School • Engineer of the Year: Arup for The Macallan Distillery • Installer of the Year: L&S Baucon GmbH for The Macallan Distillery • Low Energy Project of the Year: Ruth Butler Architects for Hampshire Passivhaus • Pioneer Award: Urban Splash for hoUSe • Private Housing Project of the Year: Barratt Homes Yorkshire East Division for St Wilfrids Walk Development

• Product Innovation Award: Moduloft for Chippenham Bungalow • Project of the Year: AKT II & Fosters & Partners for Bloomberg European HQ • Project or Construction Manager of the Year: Barratt Homes Yorkshire East Division - Mark Greenley, Site Manager • Retail & Leisure Project of the Year: Metsä Wood for Center Parcs, Elveden Forest • Social Housing Project of the Year: CCG & Stora Enso for Ellerslie Road Development • Best Use of SIPs: Innovaré Systems for Glasdir School • Best Use of Solid Wood: Metsä Wood for Center Parcs, Elveden Forest • Best Use of Timber Frame: Stewart Milne Timber Systems & Barratt Homes Yorkshire East Division for Barratt's St Wilfrids Walk Development • Winner of Winners: Arup, L&S Baucon GmbH, Robertson, Wiehag GmbH & Rogers Stirk Harbours + Partners for The Macallan Distillery For the hundreds of construction professionals who have attended the Structural Timber Awards, there is no need to explain the promotional opportunities that go hand in hand with this event. The Awards provide one of the most effective platforms to promote brands or companies alongside the best of the best.

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Please note that the Submission deadline for entries into the 2019 Structural Timber Awards is 31 May 2019.

The Structural Timber Awards will be returning in October 2019 to celebrate the best in building with the world’s leading mainstream, low-carbon construction material. The Structural Timber Awards will reward outstanding projects, innovative products and dynamic people that are promoting excellence in structural timber across the UK. Across key sectors of construction, the Awards will showcase innovation, celebrate best practice and recognise expertise in timber technology and the ways it contributes to an attractive, energy efficient and sustainable built environment.

You can read more about all the winning projects over the following pages.

For more information on the Awards in 2019 and how to enter keep an eye on: www.structuraltimberawards.co.uk

SILENCE IS GOLDEN

®

STRUCTURAL TIMBER ASSOCIATION

Evidencing Excellence

01

The STA Assure scheme has been developed by the STA to provide independent verifiable evidence to the wider construction community to promote the quality and safety standards being achieved by individual STA member companies. STA Chief Executive, Andrew Carpenter reveals an important development. certification process for timber structures – HB2445 certification will no longer be required when working with STA Assure Gold members. STA Assure has also received formal recognition from six of the industry’s leading structural warranty and building control bodies LABC Warranty, Premier Guarantee, Protek Warranty, Build-Zone Warranty, Self-Build Zone Warranty and CRL for STA Assure Gold and Silver members.

02

Structural timber systems have advanced greatly in recent years and deliver genuine cost, performance and quality benefits.

STA Assure was launched in 2017 and the initial accreditation scheme was based on a self-assessment declaration process. To add further standing and credibility to this initiative, at the beginning of 2018, STA Assure became an independently audited scheme for all STA members classified as structural timber building system suppliers.

This scheme goes beyond the factory and includes the Site Safe policy which provides STA members with processes to support their customers in achieving safety during construction on all structural timber building system applications. The STA Assure

assessment creates a clear distinction in the expected performance levels of STA members and non-members within the structural timber arena. By providing transparency, credibility and accountability, the STA safeguards the interests of end users, enabling them to partner with reputable member companies to harness the multitude of inherent benefits that structural timber offers.

NHBC Recognition As we go to press, the STA have announced that the Association has reached a formal agreement with the NHBC to recognise the benefits of STA Assure. From January 2019 the NHBC will accept STA Assure Gold members as compliant with NHBC’s

14 | www.structuraltimbermagazine.co.uk | STMAG

Competency Validation In addition to the STA Assure membership and quality standards scheme, in partnership CITB and Edinburgh Napier University, we have developed a competency programme for timber frame designers and manufacturers. This training scheme provides validation of the skills and competences of experienced timber frame designers and manufacturers, together with raising the skill levels of young entrants to the timber frame industry.

The structured training programme validates or enhances a participant’s understanding the timber frame process from the foundations to the roof. The programme is completed in the workplace via a series of workbooks which are divided into modules, including: practical skills, knowledge skills together with health and safety skills. In the same way that we have evolved STA Assure, next year we have plans to develop an online test for timber frame designers and manufacturers.

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03 The Offsite Opportunity The consistent and now joined-up message from Government for procuring in favour of offsite technology together with the ‘Building for Change’ report by the House of Lords Select Committee and more recently the announcement of the Industrial Strategy is changing the political landscape.

STA members within the structural timber solutions market are well established with

proven offsite technology and processes.

Therefore, can collectively meet the Government’s aspirations for growth in housing numbers by utilising offsite construction techniques that are proven to work, are readily available and deliver quality and value at minimal risk. This is a very real opportunity for our sector to prove that it is both innovative whilst also being certified and assured. The construction and housing marketplaces are buoyant and there are a growing number of emerging opportunities for our members.

The Government is driving change, which is extremely positive for our sector. Our industry and our members have a vast amount of experience, combined with a range of high value systems and the capacity to meet the rising demand.

to promote the positive message that our sector has the ability to deliver. I would like to take this opportunity to acknowledge the work undertaken by the numerous dedicated STA committee members who volunteer their precious time. We have worked together for the good of our industry and STA Assure gaining formal recognition from the NHBC and six of the industry’s leading structural warranty and building control bodies is testament to industry professionals coming together to work for the common good of the structural timber sector.

The STA Board have been engaged in a whole series of external meetings throughout 2018 including Government bodies, NHBC, HBF, HSE and many others

IMAGES: 01. Andrew Carpenter, STA Chief Executive 02-03. Timber plays a huge part in offsite manufacture.

Courtesy Stewart Milne Timber Systems

For more information on the STA, STA Assure and membership visit: www.structuraltimber.co.uk

Membership brings genuine commercial benefits through technical insights, new business referrals, networking opportunities, access to unique training schemes and industry recognised, independently audited assessments.

STA Assure Membership and Quality Standards Scheme The independently audited scheme has received formal recognition from six of the industry’s leading structural warranty and building control bodies for STA Assure Gold and Silver members.

From January 2019 the NHBC will accept STA Assure Gold members as compliant with NHBC’s Certification process for timber structures – HB2445 certification will no longer be required when working with STA Assure Gold members.

Contact: Bob Davis Membership & Quality Manager on 07889 702 559 or bob.davis@structuraltimber.co.uk

www.structuraltimber.co.uk

ST AWARDS 2018

WINNER of Winners COMPANY: Arup, L&S Baucon GmbH, Robertson, Wiehag GmbH & Rogers Stirk Harbour + Partners Project: The Macallan Distillery

CATEGORY SPONSOR

Since its unveiling earlier in the year, the Macallan Distillery has quickly become an iconic, multi-award winning building, showcasing engineered wood via the most complex timber roof structure ever built in the UK. Across the board the Judging Panel were hugely impressed on virtually every level.

Built on the Easter Elchies estate in Speyside, the new flagship £140 million Macallan Distillery roof consists of five domes which mirror the surrounding landscape. The undulating timber roof structure comprising 380,000 individual components. Each junction and beam has a specific name and has been tested in over 160 different load conditions while ‘The Swiss Alpine Design code’ has been used to understand the effects of wind, snow and ice on the intricate structure.

The 207m long roof comprises 1,798 PEFC-certified glulam timber beams and 2,447 roof decks delivered in 130 justin-time deliveries, making up a 3 x 3m waffle grid that carries 2,500 cassettes

that support a natural meadow green roof. It took almost 12 months of work, using collaborative design and bespoke parametric modelling software, to define the complex geometry and realise the fluidity of the structure.

Graham Stirk, Senior Partner and Lead Architect, RSH+P, added: “The Macallan estate truly is a special place, a place we have come to love and respect hugely.

The vision was always ambitious but this enabled us to challenge our own thinking to create something so dramatic and awe-inspiring. It has been an honour to play our part in shaping the next chapter for The Macallan.”

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All the timber items were made in Wiehag’s factory in Austria and used advanced CNC machinery to meet the design team’s high standards of quality and finish, and Wiehag’s advanced barcode system ensured each piece was delivered when required to site. There were over 5,000 lifts, using four mobile cranes, to install the roof structure. In a similar way that timber barrels impart a flavour to whisky, the timber roof gives a unique character to this building. The 200mm wide glulam beams have a 160mm wide glulam core with 2x20mm structural LVL (laminated veneer lumber) cheeks either side. The LVL cheeks form a channel at each bottom face of the beams, and the bottom face of the glulam core is beveled to mirror the organic hilly

ST AWARDS 2018

geometry, as well as forming an exceptional neat detail when four beams meet at a junction. Wiehag’s prefab roof deck is built up with a LVL ceiling, timber joists and OSB panel on top, which serves as the base for the 12,300m2 of green roof build up.

The amazing freeform design was by leading architects RSH+P and structural engineers Arup. The engineering of the roof was undertaken by Arup in close collaboration with RSH+P all the way from competition up to tender with Wiehag undertaking the final construction design, manufacture and installation of the timber for main contractor Robertson Construction.

For a project of this complexity Wiehag used their preferred installer L&S Baucon.

The pre-installation at the distillery of the whiskey production stills and machineries further complicated the installation of the roof, and L&S Baucon had to develop some innovative propping solutions to work around the delicate copper structures and work alongside Wiehag calculating forces through props and designing connections for props that would allow them to work with hydraulic rams to lift the beams to exact locations once installed. This prop worked perfectly for all five domes.

L&S Baucon pushed the boundary with this timber installation and always look for new ways to make working on roofs more

efficient but maintaining a very high safety standard. On the Macallan Distillery project they had to walk on the roof to install the timber decks so they could screw down the decks and seal the roof from water ingress.

To do this they used the Luxline system which allowed the installers to move around freely but at the same time work on a fall restraint system – that was independently tested at the University of Munich – before introducing it to the principal contractor as a means of working safely on the roof. This allowed them to install the roof safely while working efficiently.

Winning both the Engineer and Installer of the Year Award plus the coveted Winner of Winners Award, the Macallan Distillery is a truly landmark project. Brian Anderson, Project Director for Robertson, said: “The Structural Timber Awards highlight the exceeding levels of innovation in building with wood – from architectural design and engineering to construction. The Macallan is an example of all of the above and more.

It was a complex, ambitious project that

during construction involved up to 400 people specialising in more than 20 different trades onsite – which gives an idea of the true scale of the project. It’s an honour to be recognised alongside the wider businesses that contributed to what has been a once-in-a-lifetime project that we are immensely proud to have been part of.”

For more information and general enquiries visit: www.rsh-p.com www.robertson.co.uk www.arup.com www.baucon-online.com/en www.en.wiehag.com

STMAG | www.structuraltimbermagazine.co.uk | 19

ST AWARDS 2018

WINNER Social Housing Project of the Year COMPANY: CCG & Stora Enso Project: Ellerslie Road Development

CATEGORY SPONSOR

which has encouraged the Institution of Structural Engineers (IStructE) to review disproportionate collapse regulations. This is Scotland's first multi-storey domestic CLT building and Building Warrant approval has set a precedent in Scotland, the result of evidence supplied to Building Standards Scotland, Glasgow City Council and Scottish Fire & Rescue Services. Discussions also took place with the gas industry and their representatives to inform on CLT in relation to disproportionate collapse.

The Ellerslie Road development is both Scotland’s tallest timber building and first multi-storey CLT building and is also the subject of two academic research programmes looking at factors including airtightness, acoustics, thermal performance, productivity and whole life costing.

Built on the banks of the River Clyde at Yoker, Ellerslie Road is a new seven storey building comprising 42 one, two and threebedroom flats including four adaptable units for wheelchair users for Sanctuary Scotland, part of Sanctuary Group. Ellerslie Road is an example of CCG’s drive to push the boundaries of construction innovation in Scotland and is the first applied use of CLT after five years of extensive R&D. The

building optimises the efficiency of CLT which is used for the entire superstructure including the common areas and lift shaft.

A bespoke platform is used to support the superstructure due to the lightweight nature of CLT and the exposure to wind loadings along the river. The superstructure includes design features to provide enhanced resistance to disproportionate collapse,

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Maximising the efficiency and use of CLT, the building is laid out around one central stairway with three ‘flatted’ sections set out in a ‘T’ shaped format. Ellerslie Road used 1240m3 of CLT which equates to a total of 757 tonnes of CO2 being removed from the earth's atmosphere. Other key benefits of building with CLT included the material's inherent airtightness and thermal properties, minimised material waste and reduced construction time – further reducing the carbon footprint and overall impact on the surrounding community with the entire seven-storey superstructure installed and wind and watertight in a net period of 16 weeks.

CCG’s decision to use CLT was the result of five years research into the material’s potential to be used as a mainstay of CCG’s future construction capabilities.

CCG have taken the understanding of CLT further and combined its capabilities in offsite manufacturing to produce a hybrid

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ST AWARDS 2018

Ellerslie Road is a good example of collaborative working methods. The design team at MAST Architects worked collaboratively with Smith and Wallwork and solid timber specialist Eurban which ensured a smooth offsite manufacture and onsite assembly process. The production of CLT by Stora Enso is a fully BIM-orientated process. CLT panels are modelled through the BIM platform and sent directly to the CNC machine at the CLT mill where they are cut to size with any apertures and service channels included. This precision engineering ensures accuracy and reduces the need for remedial work or changes onsite.

product, something that is currently being constructed at another affordable housing development in Glasgow. As a contractor and manufacturer CCG has vast experience in the residential and commercial sectors and CLT offers CCG the ability to approach new market places. CCG OSM (timber frame division) manufactures closed panel wall systems and components (floor and roof cassettes), however there are height limitations to what can be achieved with timber frame. CLT provides the potential to build to a higher number of stories as well as bringing programme and delivery efficiencies such as reduced labour and savings in time and material costs as well as being highly sustainable when compared to traditional methods.

The CLT used was manufactured by Stora Enso and is sourced from sustainably managed PEFC-certified forests. CLT is a fast, clean and efficient method of construction and prior to starting onsite, CCG calculated an immediate time saving of 24% by the use of CLT. The material also has low environmental impact due to minimised vehicle movement onsite and reduced visual and noise pollution.

In addition, CLT’s thermal and airtightness performance means that that residents will benefit from energy savings when compared to traditional methods of construction. For example, three-year energy costs for a mid-floor, 68m2 apartment is £888.

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Yoker is the subject of a major research programme being undertaken by the Universities of Strathclyde, Glasgow and Edinburgh Napier for which The Construction Scotland Innovation Centre (CSIC) is providing £60,000 in funding for academic support. The overall programme includes research into airtightness, acoustics, thermal performance, construction and productivity plus LCA/ whole-life costing. Separate research investigating the building’s interaction with wind, taking measurements of the movement of the structure under wind load is being carried out by the Department of Architecture at the University of Cambridge, working with the School of Engineering at the University of Edinburgh.

For more information and general enquiries visit: www.c-c-g.co.uk www.storaenso.com

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ST AWARDS 2018

WINNER Private Housing Project of the Year COMPANY: Barratt Homes Yorkshire East Division Project: St Wilfrids Walk Development

CATEGORY SPONSOR

St Wilfrids Walk Development in Selby, North Yorkshire, consists of 53 two, three and four-bedroom timber frame units, this was a pilot project for not only the Yorkshire East Division of Barratt Homes, but for the Barratt Group as a whole.

This was an opportunity to trial and showcase Barratt’s timber frame product range, which was designed in conjunction with Stewart Milne Timber Systems.

Due to the success of the project, the Yorkshire East Division is currently developing a further three sites in timber frame, representing around 200 units, which are currently in build. The Yorkshire East Division also has further timber frame sites in the pipeline. Across the Barratt Group, there are a number of Divisions already planning and developing timber frame sites following the success of

St Wilfrids Walk, meaning the success of the project has had an effect nationally.

The site was a huge success for the Division and the Group for two key reasons.

Firstly the site completed slightly ahead of schedule, within a total time frame of 14 months. This resulted in a commercial success for the Division and early occupations for our customers. Secondly, the scheme managed to overcome any reservations or negative pre-conceptions about timber frame construction and provided a successful case study for the Group, upon which to build on for the future.

24 | www.structuraltimbermagazine.co.uk | STMAG

Timber frame construction was specified at St Wilfrids Walk as part of the Group’s drive to trial ‘alternative methods’ of construction, in order to diversify the brand and to improve overall business efficiency.

Timber frame was also specified due to a general shortage of tradesmen (bricklayers) within the Yorkshire Region. Timber frame enabled the Division to take bricklayers off the critical path, in order to drive the programme and minimise risk of delay.

Timber frame construction resulted in an engineered and refined solution onsite.

The eradication of wet trades in the main performance envelope (i.e. inner

ST AWARDS 2018

savings in programme result in less time spent onsite, and less labour and hours spent on each plot.

skin of structure, insulation, finishes and weatherproofing) ensured a tidier site and well-executed finished product. This was evident in the results of the air tests conducted onsite. The design air leakage requirement was for 5.01m3/(h.m2) @50Pa. Masonry sites typically achieve values of 4-5, whereas the air tests at St Wilfrids Walk were in the ranges of 3-4m3/ (h.m2) @50Pa. This identifies that the building envelope is better engineered and greatly reduces heat loss through air leakage, which as a result will lower energy consumption and running costs, thus reducing the environmental impact of the scheme as a whole.

One of the main benefits of timber frame is the ability to construct and complete a site within a shorter time frame. Everyone is consciously aware that most development

tends to cause disruption to neighbouring areas during the build phase, which Barratt tries to minimise. The specification of timber frame minimised time onsite and this in turn minimised disruption to the locality. All of the timber frame house types in the Barratt Timber Frame Product Range are designed to match their masonry counterparts. The dwellings at St Wilfrids Walk are brick clad and have tiled roofs and blend in seamlessly with the surrounding properties, enhancing and complimenting the local vernacular. The development at St Wilfrids Walk was completed within a 14 month period. This included all road and sewer infrastructure, foundations and plot build for the 53 units. An equivalent site using masonry construction would have taken around 20 months to complete, representing a programme saving of six months (circa 30%) for the project. The

26 | www.structuraltimbermagazine.co.uk | STMAG

These reduced timescales inherently reduce the overall risk to personnel working onsite from a health and safety perspective.

Another benefit of using timber frame is the efficiency of build and the refinement of the end product. This reduces damage to materials during build and improves the quality of the end product for the customer.

As a result, aftercare costs for remedial works on plots have reduced significantly when compared to masonry sites, which is also reflected in the customer satisfaction scores, which were at 100%, compared to the divisional average of 91.9%, which further reinforces Barratt’s 5* Housebuilder Status.

As a result of the design and speed of build, St Wilfrids Walk is now a completed and fully-occupied development, which has already benefited and will continue to contribute to the community for years to come.

For more information and general enquiries visit: www.barratthomes.co.uk

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ST AWARDS 2018

WINNER Custom & Self Build Housing Project of the Year COMPANY: Streif UK Project: Skyfall

CATEGORY SPONSOR

Skyfall is a modern architectural home designed to maximise the potential of its stunning waterfront location in West Sussex. The house was created as a luxurious, low energy, family residence with exceptional fabric standards supported by an array of low carbon technologies.

Streif designed, manufactured and erected the entire building using its offsite integrated timber building system, applying the principles and practice of modern methods of construction learnt over its ninety year company history.

The house was designed and built with energy efficiency in mind including photovoltaic panels and mechanical ventilation with heat recovery, with a connected annex to accommodate the owner’s extended family for weekend breaks. 510m² in size, the contemporary dwelling is built on a 0.80 acre plot with

25m of water frontage, a private slipway and jetty. The project is an excellent showcase of what can be achieved when high quality structural timber is combined with innovative factory production to deliver sophisticated high-end homes without the need for cumbersome masonry construction.

The house was built up with 79 individually BIM-designed and manufactured timber wall panels, 20 floor cassettes, eight flat roof cassettes, 12 glulam beams, five steel beams and 94 truss profiles. The building was delivered on board nine articulated

28 | www.structuraltimbermagazine.co.uk | STMAG

lorries and was erected in 10 days by five operatives, on budget and on time.

At its core, the Streif building system comprises of advanced closed panel walls up to 13 metres in length and over three metres in height, fully insulated both inside the solid timber frame and outside the frame, with all windows, doors and M&E integrated into the walls. In this project, the walls were designed to near Passivhaus standards and were complemented by heavy duty, large format floor cassettes, flat roof cassettes, a pre-cut vaulted roof and two pre-assembled trussed roofs.

IMPROVEMENTS IN SAP* FROM USING THE HYBRID SYSTEM RESULTED IN LOWER PROJECT COSTS Peter Dawson, Housebuilder

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Each Hybrid product combines both insulation and airtightness properties:

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ST AWARDS 2018

The large vaulted sitting room roof presented a particular challenge, requiring expert programming using Dietrich’s 3D CAD/CAM software to drive the Hundegger K2i cutting machines. Needless to say the customised glulam ring beams, top lantern, hips, rafters and three-way steel flitch plates fitted together perfectly onsite, enabling this whole structural element to be pre-assembled on the slab and then craned on to the supporting walls in one simple lift.

are preciously defended, and timber being naturally retiring and modest within a rural landscape made for an uncontroversial approval. Streif’s solid timber framework is excellent quality and very strong – studs at a minimum of 160mm x 60mm finished size, C24 graded, PEFC-certified Scots Pine max 15% moisture content and fully treated.

The cassettes are even stronger – joists at a minimum of 240mm x 60mm finished size and often up to 240mm x 200mm.

The building was erected using an 80 tonne mobile crane, except for reaching into the rear garden to lift up the pre-assembled trussed roofs which required a 100 tonne mobile crane. All lifts were planned and controlled by Streif appointed persons, lift supervisors and slinger signallers.

Streif was employed as the main sub-contractor on this project to provide our offsite manufactured building system, with the fit-out to be managed by the clients.

Although Streif delivers turnkey homes in Germany, they find that self-build clients in the UK prefer a ‘shell and core’ approach, leaving them the flexibility to control their own finishes and to employ their own trades.

It was always the clients’ intention to build this project using timber for the main construction material. The clients were knowledgeable in the construction business themselves and very discerning, so they knew what they wanted and they wanted a functional material which worked both as a structural solution and as a finishes solution that offered a softness unrivalled by other materials. The local planning department and harbour conservancy body also had strong ideas as the views up the estuary

Twelve weeks is not a lot of time and not a lot of construction methods can get anywhere near this delivery programme, but Streif’s offsite manufactured timber building system is certainly one of them.

By making timber the heart of the Streif system the benefits were maximised of speedy 3D CAD/CAM timber engineering software, the advantage of sophisticated

30 | www.structuraltimbermagazine.co.uk | STMAG

timber machining and skilled carpenters working under ideal factory conditions, added value into the pre-finished walls and cassettes, safe and quick transportation on articulated lorries and fast erection.

As there is no mains gas available in this rural area and the client was relying on oil as the main heating fuel, they were keen to maximise the benefits of timber design to help reduce the energy consumption of the building. As a result, the building has an exceptionally warm building fabric – timber wall U-values of 0.12W/m²K, timber roof U-values of 0.14W/m²K, timber windows and doors U-values of 0.90 W/m²K and air tightness of 3.28/m2/hr. This means that Skyfall’s owners will always have a highly energy efficient building with low running costs for the lifetime of the building.

The beautiful design of the timber building was thanks to project architects Cover Storey and originating architects Darling Associates, and the project was ably managed by the clients through their firm Pro West Homes. The main contract value was £1.2 million.

For more information and general enquiries visit: www.streif.co.uk

simplifying offsite

Innovaré is Simplifying Offsite Innovaré makes it easy for clients to achieve the performance criteria, tight programme scheduling and cost saving benefits of offsite construction.

Build methods are changing with traditional processes being replaced by offsite construction, for reasons of quality, speed, health & safety and sustainability.

As a specialist contractor, Innovaré design, engineer, manufacture and install the i-SIP System giving us the expertise and flexibility to accommodate a more extensive range of project requirements, simplifying offsite construction processes and saving customers both time and money. #Modular #Offsite #Simple

For more information: Telephone 0845 674 0020 Email enquiries@innovaresystems.co.uk

www.innovaresystems.co.uk EDUCATION

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ST AWARDS 2018

WINNER Best SIPS Project COMPANY: Innovaré Systems Project: Glasdir School

CATEGORY SPONSOR

to work with architects Lovelock Mitchell and the £10.5million project has been designed and built utilising BIM level 2 and advanced structural timber technology which will reduced on-going operational and maintenance costs across the lifecycle of the building.

As part of the 21st Century Schools programme, Denbighshire County Council and the Welsh Government relocated two primary schools to a single new school site at Glasdir in Ruthin.

The decision was made to relocate two primary schools – Rhos Street School and Ysgol Pen Barras – to new, modern facilities on a shared school site with the two new schools constructed to BREEAM Excellent standards.

Wynne Construction drove the decision to adopt Innovare’s i-SIP System for the superstructure. Working with Innovaré as the preferred supply chain partner achieved a collaborative approach. Innovaré’s technical team was embedded into the project design at the commencement of RIBA Stage 3 and were invited into the project common data environment to access all information and upload relevant data at the agreed exchange points.

The Innovaré i-SIP System comprises structurally insulated panels manufactured from two skins of OSB/3 bonded with a two-part polyurethane adhesive to an insulated core of expanded polystyrene (EPS) 100E. Each panel incorporates a solid timber top and rebated bottom panel closer for fixing directly to the timber sole plate.

The capability to ‘clad anywhere’ onto the i-SIP System ensured the main contractor’s ability to mix and match the outward appearance for the two schools to keep the individual identities.

Denbighshire County Council and the Welsh Government required the development to be carried out to BIM Level 2. Innovaré were contracted by Wynne Construction

32 | www.structuraltimbermagazine.co.uk | STMAG

The i-SIP System can rapidly deliver a watertight structure by a predictable date and programming and scheduling can be done with certainty because the building structure is manufactured and delivered to a reliable and controllable schedule, allowing fit-out and follow-on trades to be scheduled with complete confidence.

Through the BBA accredited i-SIP System, Innovaré has a proven capability to increase productivity and address the government’s Facilities Output Specification (FOS) with an offsite built system without derogation. The ESFA has acknowledged that i-SIP is the only offsite system to fully meet its exacting standards.

In just 13 weeks over 10,000m² of i-SIP components including internal and external walls and roof cassettes were erected by six specialist installers utilising two cranes – achieving a 55% faster handover of a watertight structure, than could be achieved using traditional methods.

Innovare completed works to the structure in September 2017 and the school opened in April 2018 to great acclaim.

For more information and general enquiries visit: www.innovaresystems.co.uk

ST AWARDS 2018

WINNER Best Timber Frame Project COMPANY: Stewart Milne Timber Systems & Barratt Homes Yorkshire East Division Project: Barratt's St Wilfrids Walk Development

CATEGORY SPONSOR

Wilfrids Walk were in the ranges of 3-4m3/ (h.m2) @50Pa. This identifies that the building envelope is better engineered and greatly reduces heat loss through air leakage, which as a result will lower energy consumption and running costs, thus reducing the environmental impact of the scheme as a whole.

St Wilfrids Walk Development in Selby, North Yorkshire, consists of 53 two, three and four-bedroom timber frame units and was an opportunity to trial and showcase Barratt’s 2016 timber frame product rang, which was designed in conjunction with Stewart Milne Timber Systems.

Due to the success of the project, the Yorkshire East Division is currently developing a further three sites in timber frame, representing around 200 units, which are currently in build. The Yorkshire East Division also has further timber frame sites in the pipeline. Across the Barratt Group, there are a number of Divisions already planning and developing timber frame sites following the success of St Wilfrids Walk, meaning the success of the project has had an effect nationally.

Timber frame construction was specified at St Wilfrids Walk as part of the Group’s drive to trial ‘alternative methods’ of construction, in order to diversify the brand and to improve overall business efficiency.

Timber frame was also specified due to a general shortage of tradesmen (bricklayers) within the Yorkshire Region. Timber frame enabled the Division to take bricklayers off the critical path, in order to drive the programme and minimise risk of delay.

Timber frame construction resulted in an engineered and refined solution onsite.

The eradication of wet trades in the main performance envelope (i.e. inner skin of structure, insulation, finishes and weatherproofing) ensured a tidier site and well-executed finished product. This was evident in the results of the air tests conducted onsite. The design air leakage requirement was for 5.01m3/(h.m2) @50Pa. Masonry sites typically achieve values of 4-5, whereas the air tests at St

One of the main benefits of timber frame is the ability to construct and complete a site within a shorter time frame. Everyone is consciously aware that most development tends to cause disruption to neighbouring areas during the build phase, which Barratt tries to minimise. The specification of timber frame minimised time onsite and this in turn minimised disruption to the locality. All of the timber frame house types in the Barratt 2016 Timber Frame Product Range are designed to match their masonry counterparts.

The site was a huge success for the Division and the Group for two key reasons.

Firstly the site completed slightly ahead of schedule, within a total time frame of 14 months and secondly, the scheme managed to overcome any reservations or negative pre-conceptions about timber frame construction and provided a successful case study for the Group, upon which to build on for the future.

For more information and general enquiries visit: www.stewartmilnetimbersystems.com www.barratthomes.co.uk

STMAG | www.structuraltimbermagazine.co.uk | 33

ST AWARDS 2018

WINNER Best Solid Wood Project COMPANY: Metsä Wood Project: Center Parcs, Elveden Forest

CATEGORY SPONSOR

balcony, which look out over the lake.

One of the most complex elements of the structure was an exposed arch at the front, which leans towards the lake. This needed to withstand biaxial bending and compression, while supporting the roof structure with a large cantilever. Kerto LVL Q-panels were used to create the long span to the first floor deck, which was designed to bear the weight of the column horizontally with a spring support.

The construction of three new Waterside Lodges at Center Parcs Elveden Forest is an ambitious architectural and engineering project utilising Metsä Wood’s Kerto® laminated veneer lumber (LVL).

When designing the new accommodation, the choice of building materials was a key consideration for the architectural practice Jackson Design Associates (JDA).

They were faced with the challenge of not only creating a design, which would blend in with the natural surroundings, but also be sufficiently lightweight to achieve the impressive arches, overhangs, and cantilever designs, without needing a considerable amount of foundation works.

would have to withstand wind action and ground settlement. Metsä Wood proposed portal frames made from Kerto-Q panels as they are very stable in terms of moisture differences, they have a high strength-toweight ratio, and they allow for smaller spacing in mechanical connections. As a result, the choice to use Kerto® instead of CLT meant that smaller pieces could be used, all of which were prepared, finished and pre-drilled for connections.

The initial plan was to use CLT, but this was too heavy to be practical on the side of the lake, so laminated veneer lumber (LVL) became the most cost effective alternative.

The nature of the lakeside location meant that careful consideration had to be given to the material used in the structure, as it

Particularly unique to this project is a two storey ‘leaning’ arch overhanging the lake edge, which is also curved three times to suit the sectional profile of the main roof.

While providing an impressive architectural feature, the arch also serves as a shelter to the cantilevered terrace and first floor

34 | www.structuraltimbermagazine.co.uk | STMAG

The columns, floor beams and support ribs of the curved roof were created using Kerto LVL Q-panel structural members. This allowed for smaller spacing in the doweled circular bending moment connection and better moisture stability. The bracing of the roof and floor was provided by Kerto LVL Q-panels, which were connected together with 3-dimentional screwing. In this way no steel bracing was required.

The use of Kerto LVL as a solution instead of alternative building materials meant that less energy was used during the installation. This combined with the fact that timber has excellent insulation values and reduced the whole project’s carbon footprint. The end result is breath taking and a great reflection of the hard work and ingenuity of the project design team, engineering know-how, and the vision of both the client and architect.

For more information and general enquiries visit: www.metsawood.com

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SOLID WOOD

Island Life Blaker Island – a small man-made island housing a working lock on the Bow Back Rivers at Stratford – has been transformed into a new, energy efficient, residential development designed and delivered by Architect and Developer Roberts & Treguer using Stora Enso cross laminated timber (CLT).

01 The new development provides seven spacious, modern homes with private outside space and views over the Olympic Park and surrounding waterways. The scheme, which is built using Stora Enso PEFC-certified CLT, comprises a five storey apartment block known as The Warehouse, and Howard’s House – two semi-detached town houses, built either side of a listed and refurbished 1930’s lock keepers house.

Roberts and Tregeur’s design concept for Blaker Island has been driven by a desire to provide high quality, low energy homes whilst preserving the history of the area.

The project team carried out extensive research into the development of the lock keeper’s island and Bow Back Rivers from 1755 through the 2012 Olympics up to the present day and this story is reflected by the new homes and the scheme’s varied streetscape.

Inspiration for The Warehouse is taken from the local vernacular of traditional warehouses to be found on the rivers and canals of Stratford. The building is very generously proportioned with just one three-bedroom apartment on each of the ground, first and second floors and two two-bedroom penthouses on the third and fourth floors. The design for Howard’s House is based on the original home of 19th Century chemist and amateur meteorologist Luke Howard which was originally situated on the island, but demolished in 1934.

Howard is known as the ‘Namer of Clouds’ for having developed the nomenclature system for cloud classification which is still used today. Though having the external appearance of one single house, Howard’s House is comprised of two spacious three bedroom homes.

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Airtightness details for both new buildings are designed to 0.6 ACH and using CLT for the superstructures has helped to achieve this. Windows are triple glazed and junction detailing between window and CLT wall panels has been carefully considered. Energy efficiency is further improved by a compact unit in each dwelling which combines mechanical ventilation heat recovery (MVHR) with an air-source heat pump to provide ventilation, heating and hot water.

It is estimated that over a 60-year period a typical dwelling will save 192 tonnes of CO2 compared with a typical UK home.

Weight was also a key consideration in the specification of CLT. “We were going to be adding a lot of weight to an existing structure and this was a key factor in the material specification,” explains Bachir Nebia, Contracts Manager at Roberts & Treguer. “The island has river walls all

SOLID WOOD

03

02 around it which are owned by the Canal Trust and we carefully considered the potential impact on them of increased weight.

“CLT is a more lightweight structural material than traditional construction materials and this enabled the project team to reduce the weight of the superstructure while still creating spacious, sustainable and energy efficient homes. We worked closely with G-frame Structures and timber engineer Furness Partnership on the detail design and the G-frame team developed quick and efficient solutions for the crane and installation strategy.”

“Because the site is a man-made island surrounded by water on all sides, other more traditional methods of construction were less feasible,” adds Lee Murphy, Managing Director of G-frame Structures. “In terms of overcoming such complex site constraints, CLT provided the perfect solution because it is lightweight, fast and efficient. The installation strategy we developed involved the erection of a 100 tonne mobile crane adjacent to the site which we used to lift in a self-erecting IGO50 mini tower crane to the island. This enabled the G-frame team to

safely, quickly and efficiently install Howard’s House and the Warehouse apartments in just six weeks.”

These factors were key considerations for the structural design and CLT panels were specified to be liftable by the IG050 mini crane. Brick slip cladding further contributed to achieving a lighter overall weight for the buildings as well as allowing for walls to be formed from the CLT wall panel, insulation and cladding without dramatically increasing thickness.

Sound separation at The Warehouse was achieved by the use of double-layer CLT walls around the full height central core which houses the lift shaft and staircase.

The two walls are separated by only a 90mm space and to overcome the inaccessible nature of this element of construction, G-frame Structures used discreet connections which also contributed to the overall internal aesthetic of the building.

Internally, CLT has been left exposed throughout both buildings, a design decision embraced by buyers of the new homes who each made an offer on first viewing.

“Buyers love to see and feel the wood and

04 we found that they have a very positive attitude to timber as a construction material,” says Bachir. “One of the key parts of decision making when buying a home is the need for a comfortable, healthy living environment which are the same qualities usually associated with wood. For an architect, CLT retains the sensory qualities of wood while enabling new forms, applications, and expressions in timber architecture – an architecture of continuity, simplicity, and precision.”

“CLT is a very versatile material suitable for use across a wide range of applications and offers a great deal of scope for creative design and architecture,” says Gareth Mason, Business Development Manager at Stora Enso. “Blaker Island demonstrates the way in which building with CLT can overcome challenging conditions and blend into a historically sensitive setting, whilst achieving a highly contemporary internal aesthetic.”

For more information visit: www.storaenso.com

IMAGES: 01-04. The Blaker Island scheme is on an unusual site

and has been driven by a desire to provide high

quality, low energy homes whilst preserving the

history of the area. Courtesy Roberts & Treguer

STMAG | www.structuraltimbermagazine.co.uk | 37

ST AWARDS 2018

WINNER Education Project of the Year COMPANY: Eckersley O'Callaghan Project: Freemen's School

CATEGORY SPONSOR

Glulam and cross laminated timber (CLT) is at the centre of a new £8 million building housing a 25m long six-lane swimming pool and teaching area at Freemen's School in Ashtead. The structure was engineered by Eckersley O’Callaghan in close collaboration with architects Hawkins Brown.

This project is a brilliant example of the project team, under main contractor Gilbert Ash, working together with project with Wiehag that undertook the final construction design and production detailing of the CLT and glulam to deliver an exemplar building that sets new standards in quality and design.

The architects Hawkins Brown had to meet the challenging brief of designing a large pool building that needed to be sensitively located and designed to minimise its impact on the school’s woodland landscape, as well as conceal the building from the school’s Grade II listed Main House.

The timber package comprises glulam portal frames with CLT roof and wall panels and includes CLT benches. The complicated design had to meet the architect's desire to have no visible bracing and hidden connections, while meeting the client's budget and timescale expectations. This has been achieved with a beautiful, solid design, which was recently recognised with a RIBA South East Award, as well as the RIBA South East Sustainability Award and the RIBA South East Client of the Year Award.

125m3 of spruce glulam forms 12 full portals and nine half portal frames, each

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with a different offset ridge to create the striking building shape. 1,800 m2 of spruce CLT forms the walls and roof, including CLT roof slabs over the steel frame to the event space. The benches along the sides of the pool are also in CLT are help complete the neat lines of the internal structure. All timber was fully PEFC-certified. Eckersley O’Callaghan, Hawkins Brown and Wiehag worked closely with the steel fabricator to ensure all interfaces between the steel and the timber were taken care of, including nearly five tonnes of steel connectors which, as well as being galvanised, were C4-coated when exposed.

ST AWARDS 2018 All the exposed glulam and CLT has been finished with a white wash coating, which was carried out once the shell was watertight. All timber was pre-cut, drilled and machined in Wiehag’s factory in Austria, and all metalwork factory-fitted, enabling a fast, safe installation which minimised disruption to the school as well as producing little waste or dust.

Timber's natural resilience to the challenging, corrosive pool environment makes it an obvious choice as, unlike steel, it doesn’t need lots of coatings to perform.

Using glulam in swimming pools is very common due to its natural resistance and aesthetic qualities, but what makes this project stand out is its striking design and the use of CLT to form the walls and roof. The structure looks deceptively simple but the complexity of the design quickly becomes apparent – especially as architects Hawkins Brown did not want metalwork to be visible.

Part of the collaborative process involved Eckersley O’Callaghan & Hawkins Brown visiting Wiehag's works in Austria to discuss the design and detailing, and to ensure the visual appearance required was met. The project team kept the client informed throughout the process to manage expectations so that when the final building was handed over the client knew exactly what to expect. Minimising disruption to the client was of extreme importance so the project team worked to ensure this happened. An example of this is transport management to ensure that delivery vehicles did not cause disruption at key times of the day. Wiehag have a limited timber supply chain as they are a volume glulam and panel manufacturer, rather than just a project management company and buy in blank CLT panels to machine from a trusted supply chain. They use a small number of specialised installers who are closely monitored and vetted to ensure structures are correctly and safely installed.

The project is a perfect example of how large projects should be delivered, with all parties working together and the early appointment of key specialists ensures the project is finished on time, on budget and to a quality that delights the client.

For more information and general enquiries visit: www.eocengineers.com

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ST AWARDS 2018

WINNER Commercial Project of the Year COMPANY: Heyne Tillett Steel & Studio RHE Project: The Import Building

CATEGORY SPONSOR

The Import Building is a new destination workplace that has been created as part of the wider Republic masterplan in East India Dock, Tower Hamlets. It has been specifically designed to appeal to the world’s fastest growing and dynamic businesses and is an exceptional example of the use of cross laminated timber (CLT) and glulam.

Developer Republic will create 650,000sq ft of high-quality, low-cost workspace with a wide range of amenities and extensive public space. The masterplan will be realised in two phases. Heyne Tillett Steel (HTS) completed phase one in early 2018 with the extensive refurbishment of Anchorage House, now known as The Import Building and has been created as part of the wider Republic masterplan in East India Dock, Tower Hamlets.

HTS provided the structural design for the integration of an exposed timber structure into the atrium of the existing nine storey

RC framed building, sitting over a single basement. Phase 1A of the project included partially infilling the atrium with an exposed glulam frame with CLT slabs to soften the aesthetic of the 1990s frame and extend the lettable area. The new structure is connected to the existing RC frame at each level to take the additional loading back to the original load paths with a series of bespoke structural connections between timber and concrete. Phase 1B included infilling the existing external arcade around the perimeter at ground floor level and adding a two-storey pavilion into the south-east corner of the building.

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As onsite space was limited, timber members were pre-cut, drilled and machined in Wiehag’s factory in Austria.

The metalwork was factory-fitted, enabling efficient, fast and safe installation. This also helped to minimise disruption to the buildings occupiers as well as lowering the amounts of waste and levels of noise produced.

Architects, Studio RHE, envisioned turning the existing 1990s office building into a space that felt renewed and contemporary and timber was used throughout to achieve this. The spruce glulam and CLT

ST AWARDS 2018 were factory-finished with a light oak stain and helped to obtain the desired aesthetic appearance. The use of timber for the atrium structure is more than an aesthetic choice, however, it is a supporting structural element that is crucial to the overall refurbishment. The timber structure is much lighter than an equivalent in steel or concrete, vital in an existing building, requiring no additional foundations.

Timber also aided the efficient delivery of the project on-time and on-budget.

To build this project with an alternative method of construction, and not a factory manufactured, offsite solution, would have been vastly more expensive and time consuming The glulam and CLT used in this project is all PEFC-certified, resulting in hundreds of tonnes of CO2 being captured and ensuring the building remains carbon neutral for several years. The offsite pre-fabrication of the panels, using precise CNC machines,

drastically reduced potential wastage on site. During production any waste timber was fed into Wiehag’s own power station, making it self-sufficient in heat and electricity. Offsite construction also allowed for better accuracy in predicting logistical issues which was vital in meeting the challenging phased programme required and helped to eliminate unnecessary lorry deliveries and lower energy consumption onsite.

The timber structure is designed for 90 minutes of fire resistance, easily achieved by protecting the galvanised steel connectors by recessing them into the glulam and CLT. As most of the operations were offsite, the project achieved a RIDDOR free installation. The close and collaborative working relationship developed with main contractor Galliford Try, architect Studio RHE, timber subcontractor Wiehag and the rest of the design team became integral to the efficient delivery of The Import

Building. HTS, Galliford Try and Studio RHE collectively pushed for the pre-fabricated solution, concluding it was the most efficient process for realising the project, on time and on budget.

For more information and general enquiries visit: www.hts.uk.com www.studiorhe.com

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STA AWARDS 2018

ST AWARDS 2018

WINNER Retail & Leisure Project of the Year COMPANY: Metsä Wood Project: Center Parcs, Elveden Forest

CATEGORY SPONSOR

The construction of three new Waterside Lodges at Center Parcs Elveden Forest is an ambitious architectural and engineering project utilising Metsä Wood’s Kerto® laminated veneer lumber (LVL).

When designing the new accommodation, the choice of building materials was a key consideration for the architectural practice Jackson Design Associates (JDA).

They were faced with the challenge of not only creating a design, which would blend in with the natural surroundings, but also be sufficiently lightweight to achieve the impressive arches, overhangs, and cantilever designs, without needing a considerable amount of foundation works.

Architects JDA created an elegant shape, reminiscent of a boat turned upside-down.

The only material that could meet all the requirements of the structure was Metsä

Wood’s light, yet extremely strong Kerto® laminated veneer lumber (LVL). The use of Kerto LVL enabled an efficient and fast building time, which was a key factor as the project needed to be completed in time for the summer.

Particularly unique to this project is a two storey ‘leaning’ arch overhanging the lake edge, which is also curved three times to suit the sectional profile of the main roof.

While providing an impressive architectural feature, the arch also serves as a shelter to the cantilevered terrace and first floor balcony, which look out over the lake. The architects at JDA needed to find a solution

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that would make the structure easy to assemble and stay/remain stable from wind action or ground settlement. They choose to use lightweight and versatile Kerto LVL for the portal frames.

One of the most complex elements of the structure was an exposed arch at the front, which leans towards the lake. This needed to withstand biaxial bending and compression, while supporting the roof structure with a large cantilever. Kerto LVL Q-panels were used to create the long span to the first floor deck, which was designed to bear the weight of the column horizontally with a spring support.

ST AWARDS 2018 Another factor was that the angled arch had to have a considerable bending moment connection at the top. This had to be manufactured in such a way that there was a perfect connection between the deck and arch, resulting in an irregular shape. Vertical columns were formed with two members spaced to support the first floor’s beams and curved roof beams. Kerto LVL was also used to create a recessed infill detail, closing the gap between the two vertical columns, a bespoke detail developed by JDA and Metsä Wood.

The columns, floor beams and support ribs of the curved roof were created using Kerto LVL Q-panel structural members. This allowed for smaller spacing in the doweled circular bending moment connection and better moisture stability. The bracing of the roof and floor was provided by Kerto LVL Q-panels, which were connected together with 3-dimentional screwing. In this way no steel bracing was required.

Engineering firm, BSP Consulting, designed the foundations and the steel platform supporting the frames, which cantilevered over the lake. The Kerto LVL frames, consisting of the arch, two columns and the floor beam, are connected to the steel through metal shoes, which transfer shear and horizontal forces to the platform.

The whole structure was modelled using BIM software – this enabled the architect and the rest of the team to easily identify the elements and understand how they would be incorporated to create the finished design. This was an important factor as much of the construction process would take part offsite. The structural analysis of all timber elements was carried out using BS EN 1995-1 and UK National annex. The whole system was designed in such a way that it allowed for quick and sequential installation to speed up the process and avoid disturbance at Center Parcs.

All elements were prepared, finished and pre-drilled for connections. The use of Kerto LVL elements throughout the construction project offered a solution that was at least 20 per cent cheaper than other timber materials. Overall, the use of Kerto LVL and the collaboration between everyone involved in the project made Centre Parcs lodges an extremely efficient building.

The use of Kerto LVL as a solution instead of alternative building materials meant that less energy was used during the installation. This combined with the fact that timber has excellent insulation values and reduced the whole project’s carbon footprint. The end result is breath taking and a great reflection of the hard work and ingenuity of the project design team, engineering know-how, and the vision of both the client and architect.

For more information and general enquiries visit: www.metsawood.com

ST AWARDS 2018

WINNER Low Energy Project of the Year COMPANY: Ruth Butler Architects Project: Hampshire Passivhaus

CATEGORY SPONSOR

Hampshire Passivhaus is an L-shaped building that effortlessly encloses a south-facing ‘outdoor room’ and provides privacy from multiple neighbours.

The house has limited energy use and is the result of collaboration between its architect and engineer owners.

The detached dwelling superstructure is entirely made from structural timber CLT – walls, floors and roofs. Structural engineers Price & Myers designed the first-floor walls to act as structural beams, allowing the ground floor to achieve large open-plan spaces that are column-free.

The structural timber panels were integral to achieving the airtightness levels required

by Passivhaus (ten times more airtight than building regulations). The prefabricated CLT superstructure was erected in just four days and watertight in seven days, providing

programme benefits and a warm dry construction site for the follow-on trades to work in.

Structural timber was integral to achieving the Passivhaus standard of low-energy build, by avoiding thermal bridges at junctions and being naturally airtight. The prefabricated timber structure demanded a robust upfront design process which improved the overall design and efficiency.

The home is carbon zero in operation, based on the use of green utilities with five

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solar electric panels and one solar thermal are integrated with the timber structure, hidden from view behind the roof parapet, with 21% of final energy use (measured by actual Kwhrs used over the last three years) comes from onsite renewables. The 53m3 of CLT used in this house removes around 42.4 tonnes of CO2, which is absorbed by the timber. Aesthetically the panels provide a tactile and harmonious quality to the interior while European oak bespoke joinery is used to highlight features such as the open-tread staircase.

ST AWARDS 2018 Externally, the house is clad in 100% PEFCcertified Siberian larch vertical rainscreen cladding, chosen for its straight grain, uniform texture and durability. The untreated larch ages over a short period of time to become silver, providing a maintenance free finish well suited to its coastal location.

Early order of the prefabricated timber structure demanded careful and detailed integration of architecture, structural and building services engineering, this ultimately led to a trouble-free construction and avoiding thermal bridges at junctions and provided continuous support for the insulation to achieve excellent U-values of 0.9 W/sqm K for walls and roofs.

Significant community consultation was undertaken prior to the planning application being submitted, with a physical model built and taken door-to-door.

The project meets the needs of the local community by providing high quality housing in an existing infill urban area and on a brownfield site. It demonstrates that contemporary development can be sensitive to urban/neighbour issues by overcoming any overlooking and privacy issues.

The architect and engineer owner’s brief was for a Passivhaus certified build. The quality control required by the Passivhaus process ensured no performance gap between the design phase and in-operation.

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Planning Package (PHPP). This low-energy build has been used as an exemplar to inform future projects and lessons-learnt in the owners’ respective practices. It is also an exemplar for how timber structures can deliver fast sustainable builds on tight sites, while tackling climate change and fuel poverty.

For more information and general enquiries visit: www.ruthbutlerarchitects.com

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ST AWARDS 2018

WINNER Project of the Year COMPANY: AKT II & Fosters & Partners Project: Bloomberg European HQ

Located on a uniquely challenging site, totalling a million square feet of bespoke end-user-led office space, Bloomberg’s European HQ comprises two integrated buildings over a common basement podium island site in the City of London and is setting new standards in quality of design and sustainability.

The whole building has been designed around a specific way of working: as the workforce enters the building, they are guided to the ‘Pantry’ at the top floor via the ‘Vortex’, and then filter back down the building using either the central spiralling ramp or by using the scenic lifts, which use an off-set rear-mounted running frame; a world first.

The Vortex sits in the main reception of the Bloomberg European HQ in London, envisaged as the place where the building’s different users first converge before moving up to the Pantry. The space is defined by three large curved walls of timber,

respectively rotated 120 degrees and reciprocally connected at the top, creating a twisting effect in this large hall. The underlying geometry is strictly connected to the hypotrochoidal function that describes the seven-storey connecting ramp, which sits right above the vortex.

A key objective was for the Bloomberg HQ to be an exemplar of sustainability, and the design achieved a BREEAM Outstanding rating with the highest design-stage score ever achieved by any major office development. High-quality, natural, selffinish materials were selected wherever possible to not only promote a greater

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CATEGORY SPONSOR

sense of well-being, but also for durability in order to minimise maintenance and reduce requirements for repair and renewal.

Throughout the project the latest in digital fabrication technology and offsite assembly was used to deliver a contemporary design that was quick, easy and safe to install. A strict tolerance was set in the fabrication to allow the acoustic cladding panels to be fabricated off-site and delivered ready to fit. These panels were constructed using a traditional ‘tongue and groove’ system of connections, which have relatively little tolerance, so accuracy of construction was essential.

Wherever possible, materials were either made from recycled content or from a material that is inherently recyclable in the future. Timber clearly meets all these criteria; a natural material that ages gracefully and can improve in appearance over time. All timber used in the project was FSC-certified and sourced from within Europe. Materials were assessed for embodied energy based on its whole life cycle, where high-quality, low maintenance and enduring materials were sourced globally to deliver a building that will stand the test of time and improve with age, rather than require regular renewal and replacement.

For more information and general enquiries visit: www.akt-uk.com www.fosterandpartners.com

ST AWARDS 2018

WINNER Pioneer of the Year COMPANY: Urban Splash Project: hoUSe

CATEGORY SPONSOR

to purchase a base model of a home – 25% bigger than the typical new build – and configure it according to personal preference. The home is created offsite, with urban locations selected to create small developments with its target market in mind.

For more than two decades, award-winning regeneration company Urban Splash has worked with world-class architects to pioneer regeneration using good design, restoring old buildings and creating new, sustainable communities.

Now, as it celebrates its 25th year in business, the company has reaffirmed its commitment to accelerating the UK’s housing shortage with the investment into its modular operations. In February 2018, it acquired its own offsite factory – vertically integrating the production of modular properties into its portfolio.

primarily with architect shedkm, hoUSe, a customisable town house was created. This innovative concept creates well-designed, spacious, new-build, family housing, driven

by Urban Splash’s desire to reignite the nation’s appetite for newbuild – away from the identikit red box building from mass developers.

After an early modular apartment scheme in Manchester in 2005, the company firmly began working in modular in 2012, when R&D commenced on its inaugural product. By 2015, it had evolved an offsite product which would revolutionise the housing sector and bring modular family housing to cities across the UK. Working

Renowned for its success regenerating historic, heritage buildings at risk of demolition into contemporary homes and commercial property, Manchester-based Urban Splash turned its talents to new build housing with hoUSe. This modular housing proposition, using a closed panel timber volumetric system, allowed buyers

The beauty of the hoUSe concept is that it can be recreated anywhere, the limits to its construction are minimal. It offsets many of the challenges faced through urban developments, minimising disruption to local residents and businesses. The controlled, efficient environment means there is no cost variance, whichever part of the country Urban Splash builds in, the construction cost is the same.

Urban Splash’s approach has never been short-term – quality goes in hand with quantity. All of its projects combine creativity with practicality, affordability with aesthetic appeal. With hoUSe, Urban Splash has spearheaded a new concept using timber in construction by challenging misconceptions around what a new build home represents, and democratising access to good housing.

The design has turned the concept of a ‘newbuild’ home on its head, demonstrating that they can be sophistically designed, situated in urban areas, and not a ‘one size fits all’ model.

For more information and general enquiries visit: www.urbansplash.co.uk

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ST AWARDS 2018

WINNER Installer of the Year COMPANY: L&S Baucon GmbH Project: The Macallan Distillery

CATEGORY SPONSOR

Wiehag undertook the construction design, manufacture and installation of the incredible timber roof structure over the new distillery and visitor experience for main contractor Robertson Construction. For a project of this complexity Wiehag used their preferred installer L&S Baucon to install this ultra-complex roof.

Built on the Easter Elchies estate in Speyside, the new flagship £140 million Macallan Distillery roof consists of five domes which mirror the surrounding landscape. The undulating timber roof structure comprising 380,000 individual components. The 207m long roof comprises 1,798 PEFC-certified glulam timber beams and 2,447 roof decks delivered in 130 just-in-time deliveries, making up a 3 x 3m waffle grid that carries 2,500 cassettes that support a natural meadow green roof.

It took almost 12 months of work, using collaborative design and bespoke parametric modelling software, to define the complex geometry and realise the fluidity

of the structure. All the timber items were made in Wiehag’s factory in Austria and used advanced CNC machinery to meet the design team’s high standards of quality and finish with Wiehag’s advanced barcode system ensured each piece was delivered when required to site.

The pre-installation at the distillery of the whiskey production stills and machinery further complicated the installation of the roof and L&S Baucon had to develop some innovative propping solutions to work around the delicate copper structures and work alongside Wiehag calculating forces through props and designing connections for props that would allow them to work

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with hydraulic rams to lift the beams to exact locations once installed.

L&S Baucon pushed the boundary with this timber installation and always look for new ways to make working on roofs more efficient but maintaining a very high safety standard. On the Macallan Distillery project they had to walk on the roof to install the timber decks so they could screw down the decks and seal the roof from water ingress.

To do this they used the Luxline system which allowed the installers to move around freely but at the same time work on a fall restraint system – that was independently tested at the University of Munich – before introducing it to the principal contractor as

ST AWARDS 2018 a means of working safely on the roof. This allowed them to install the roof safely while working efficiently.

L&S Baucon strives to keep its installers up to date on all safety matters. As they work with a lot of different principal contractors they try to adapt to each and every one of their requirements. L&S Baucon have site meetings with the main contractor long before going to site and meet with their safety advisor to see what requirements they would have. They will then go back to the office and research their requirements and make sure its installers are trained through the best means possible to obtain the required training.

The site manager makes sure all installers are briefed on RAMS and Lift plans and are carrying out daily checked on equipment i.e. daily briefings, plant check lists and harness inspections. As each project is different they adapt to each project and

bring any new H&S routines to the next job where they can suggest this to other contractors. They also have an independent H&S advisor come to site frequently and randomly to inspect how operations are going on site, checking paper work and making sure they are working safely within RAMS. L&S Baucon bring a high level of safety to site at all times and try use the same installers all the time so they know they can rely on them to work safely.

All L&S Baucon installers have CSCS training and crane supervisors have CPCS training. As IPAF is internationally recognised and has very good training programs they decided to use them for MEWP training. The company uses RTITB also and ITSAAR if required by the client.

Its latest training was for Face Fit testing on installers using FFP3 masks as they feel FFP3 is a high benchmark to meet for its installers and working with saw dust they feel they deserve to have the best.

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L&S Baucon tries to make sure its installers have all relevant training before going to site so they are competent in their roles and have been educated in the risks that are ahead. CITB have provide a good benchmark for this and they feel they can make a difference with its installers by providing the best training possible.

For more information and general enquiries visit: www.baucon-online.com

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ST AWARDS 2018

WINNER Project/Construction Manager of the Year COMPANY: Mark Greenley, Site Manager Project: Barratt Homes Yorkshire East Division

CATEGORY SPONSOR

Mark Greenley, Site Manager for the St Wilfrids Walk timber frame site at Brayton, Selby, North Yorkshire, performed above anD beyond expectations and played a pivotal role in the overall success of the project.

With a background as a joiner and several years of site management experience, Mark was identified as the most suitable candidate for the site manager role on this pilot project for the Barratt Yorkshire East Division and Barratt Group. Without hesitation Mark jumped at the opportunity to take on the role when approached by the Divisional Directors and proceeded to make an impact from Day 1.

construction and new methodologies, to be able to drive, enthuse and guide others in these new methods. This came naturally to Mark and after the first few plots were erected with very little complications or issues, he was instrumental in accelerating the production rate on site, by being positive, proactive and encouraging confidence across the project team, that the project could be a success.

As timber frame construction was new to the division and most of the sub-contractors in the region, Mark's first challenge was to fully understand the complexities of timber

From the outset, the challenge was to improve the overall site programme when compared to a masonry scheme, in order to reduce overheads and to increase turnover.

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An equivalent masonry programme for the site of 53 units in masonry was circa 20 months. St Wilfrids Walk completed within 14 months, representing a time saving of six months (30%). This as a result vastly improved the budget for the overall scheme, as cost savings were realised through less time spent on site. Mark was instrumental in increasing production from one unit a week to two units a week, part way through the site once the team had gained confidence in the systems and processes of timber frame and this is how the programme and cost savings were achieved. With regards to quality, the site

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ST AWARDS 2018

achieved a customer satisfaction score of 100%, which is testament to Mark's management of the site to ensure quality, and his ability to build strong relationships with our customers.

St Wilfrids Walk utilised timber frame kits supplied and installed by Stewart Milne Timber Systems (SMTS) and this was the first time Barratt Yorkshire East had worked collaboratively with SMTS on a full site. Before the site began, a number of workshops were held on site between the site team, SMTS, Barratt Group Design and Technical and various subcontractors.

As the process, sequencing and detailing of timber frame are different to masonry construction, these workshops were vital and were held regularly throughout the duration on site to ensure that each party was educated and kept up to date on timber frame construction methodology.

Mark was instrumental in arranging and

hosting these regular workshops, which enabled the site to run smoothly and consistently.

Mark planned the construction sequencing on site extremely well and created a regular and repetitive programme of works for each trade. For example, the groundworks subcontractor always had at least five or six foundations ready ahead of kit delivery and system scaffold was erected prior to each delivery. Kits would arrive Tuesdays and be erected up to wall plate; roof trusses and felt and batten on a Wednesday; roof tiled Thursday, doors and windows Friday. This repetitive programme gave each trade a regular slot each week and ensured plots were secure and watertight within a week and in time for the weekend. The internal fit out of plots also followed a regular pattern. With regular time slots, this also kept subcontractors engaged and interested in the site, which meant they were less

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susceptible to not turning up and causing delays. When the site production increased from unit a week up to two, this regular programme pattern simply meant drafting in extra labour for the same days and was simpler to manage Since St Wilfrids completed, Mark has taken on another timber frame site and is now involved in the education and mentoring of other site managers who are taking on timber frame sites. On Mark’s latest site, he is also trialling precast insulated plank foundations along with timber frame, which is testament to his willingness pioneer and trial new technologies to improve efficiency and the speed of construction.

For more information and general enquiries visit: www.barratthomes.co.uk

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ST AWARDS 2018

WINNER Architect of the Year COMPANY: Chadwick Dryer Clarke Project: The Stephen Perse Foundation Sports and Learning Building

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The Stephen Perse Foundation comprises a group of leading independent schools based in central Cambridge. The design and construction of the new Sports and Learning Building for the Foundation was driven by the constraints of the sensitive urban site and the live school environment.

Sitting within newly landscaped grounds, the building provides a new focus for the school. The two key large volume spaces of the sports hall and rooftop multi use games area (MUGA) have been carefully integrated into a contextual piece of architecture that addresses the volumes of these large spaces. The school also wanted to use this space for exams and school assemblies, and so the hall has been designed acoustically with lowered reverberation times to facilitate these uses.

Additionally, two banks of retractable seating for 280 people was designed into a recess in the north wall of the sports hall to enable clear views during assemblies.

Structurally, the loads from the upper floors sit directly over this recess, and so a steel-CLT flitched truss was installed over the seating recess to enable this without destroying the ‘timber box’ aesthetic of the sports hall. The design team believes this is the first time this sort of structural solution has been used in the UK.

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The external canopy has been expressed in a deep weave of glulam beams that spread from the activity space out into the courtyard like a tree canopy, supported by organically-shaped tilted columns that reference a copper beach tree that previously sat on the site. This doubleheight external space forms an attractive focus for the school both during the day and at night and is proving enormously popular as a place to gather.

ST AWARDS 2018 The main reason for specifying structural timber was related to its many sustainable characteristics. Although the cost of CLT is proportionately higher than traditional materials, the efficiency in speed in its installation and fixing helped to reduce the overall costs with reduced labour and reduce the overall length of the build.

Because the school was in use throughout the build, minimising disruption and sound during construction was a key aspect of the design. The choice of CLT enabled a ‘quiet’ erection of the superstructure as the panels were produced offsite and able to be delivered, offloaded, installed and fixed in place very quickly. This had the added benefit of there being much less waste produced on site, and the extent of wet trades was limited as was the amount of dust from traditional blockwork construction. Being a school, the choice of CLT was also beneficial in creating a clean and non-toxic, non-VOC breathable environment, and being a renewable

material and able to achieve negative net C02 emissions, CLT was deemed by the school as a good choice.

The natural raw timber finish was aesthetically pleasing and much of the CLT internally was purposefully left exposed, contributing to a desire to express the ‘honesty’ of the material and use it as springboard for other exposed elements such as electrical cabling, lighting, ducting and acoustic panels. Exposing the timber will also help reduce maintenance costs such as cleaning, painting and redecorating.

Using timber as the primary structure helped to greatly, in simplifying the design and reducing disruption to the school and noise levels while the school was continuously in use.

The full height CLT-steel flitch truss installed over the recessed bleacher seating to the sports hall, transfers loads from three storeys above down to the ground and

with the lightweight CLT super structure, allow the classrooms and MUGA to be stacked over. This is a world first. Indeed, the lightweight characteristics of CLT have allowed the scale of the building to be reduced and in a very tight urban site, this was a creative solution to the problem of how to organise the external spaces efficiently whilst responding to the demands of its urban context.

For more information and general enquiries visit: www.chadwickdryerclarke.co.uk

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ST AWARDS 2018

WINNER Contractor of the Year COMPANY: Balfour Beatty Project: Abbey Wood

CATEGORY SPONSOR

Abbey Wood is an entirely new station on the South East Spur of Crossrail, denoting the pivotal start and conclusion of Crossrail's journey to and from central London. The station and transport interchange at Abbey Wood is symbolic not only for its regeneration effects but also its use of solid timber.

The station design has created a new and vibrant architectural focus for Abbey Wood and a greatly enhanced passenger experience. Key to the station’s design was the integration with an elevated flyover, the Harrow Manor Way. The station is shaped like a manta ray, its zinc-surfaced ‘wings’ extending into canopies sheltering staircases on either side. Lifts emerge as architectural features flank the station forecourt as the station building is shaped to swoop down to a platform level below, linking to radically transform the civic

spaces on either side at ground level. It is these elements that make Abbey Wood unique.

Balfour Beatty constructed the station’s manta ray timber roof structure. Architects Fereday Pollard created the design and timber expert and Wiehag supplied and installed the glulam members, spanning a total of 45 metres and the cross laminated timber (CLT) deck. The roof area accounts for 1,600sq m. In addition to the glulam timbers, which are pre-fabricated using

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CNC technology, assembly of the roof support structure required 30 tons of steel, worth €1.4 million. Assembly of this exceptional structure commenced in August 2017.

A grid of steel beams and girders supports the loads of the engineered timber roof structure. The timber roof structure is divided into four components: Four single-curved primary support members, designed as a cantilever girder system, with a total length of 45m per member; single

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ST AWARDS 2018

and double-curved secondary supports, connected primarily with Wiehag brackets fixed to the primary trusses or support structure; 18 straight or simply curved tertiary support members and three 1600sqm layer cross laminated timber panels in larch and spruce.

A steel/timber hybrid and a timber solution were considered. Timber was chosen as it achieved the design vision for an exposed structure; additionally timber avoids structural flanges and doesn’t require artificial soffits (historically stations have had an exposed engineered structure).

The timber design concept was developed initially by Fereday Pollard with Tony Gee Partners undertaking the detailed design of the roof structure.

Wiehag were selected due to their track record and ambition to deliver the double curvature design. Wiehag was responsible for fabrication design (using their proprietary connections and software) with Tony Gee Partners validating the design.

By Wiehag using their proprietary design software (aligned to their CNC production line) and Tony Gee Partners using finite element analysis, created differences in predicted stress which Wiehag had to resolve. Wiehag was responsible for pre-testing (ensuring that the fixings were able to hold the solid timber panelling of the roof plate in the low radius double curvature situations).

The Crossrail contract required the design delivery team to work collaboratively from Governance for Railway Investment Projects (GRIP) Stage 4 (equivalent to RIBA Stage 3).

Wiehag received the information from the Clients design team in IFC format (DWG, Revit and Bentley AECOsim. To develop the complex geometries and parametric design Wiehag used a suite of programs including; Dlubal, Bocad, Grasshopper and Rhino.

For complex freeform projects like Abbey Wood’s parametric design was essential, as the glulam members are not only curved in one direction but twisted as well.

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Once the design was complete it was issued electronically to the client’s design team who validated and co-ordinated the design ensuring that there were no service or interface issues. Despite all the advanced software used, human interaction and collaboration was still imperative and as part of the design process. Wiehag’s engineers attended numerous design workshops with the project team. Once Wiehag’s designs were approved, the design was turned into production details using a combination of proprietary software and CNC software. Once complete the production details were issued to Wiehag’s industry leading CNC production machinery at their facility in Austria. Additionally Wiehag also used an in-house barcoding system to ensure every item was delivered on time and quality inspected ready for installation on-site.

Material choice and specialist early engagement of a contractor into the design process was crucial. The design team with Wiehag shared a design vision using timber.

The design team needed to accept the limitations and restrictions of using timber and how to deliver an iconic building that can be appreciated by all. Sustainability was central to the scheme. A total of 190m3 of PEFC-certified glulam and CLT resulted in a reduction of 190 tons of CO2 being captured, making Abbey Wood carbon neutral.

Design was completed October 2012, receiving Schedule 7 (GRIP Stage 3), planning in October 2013 and detailed materials in August 2014. Wiehag’s design period ran from October 2015 to June 2016 with production starting in July 2016 with erection/installation running from September to November 2016, with the last sections installed May 2017.

For more information and general enquiries visit: www.balfourbeatty.com

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ST AWARDS 2018

WINNER Client of the Year COMPANY: Bloomberg LLP Project: Bloomberg European HQ

CATEGORY SPONSOR

Bloomberg’s European HQ comprises two integrated buildings over a common basement podium island site in the City of London. Setting new standards and raising the bar for quality of design and sustainability (certified LEED Platinum and BREEAM Outstanding), this project challenges the norm.

The whole building has been designed around a specific way of working: as the workforce enters the building, they are guided to the ‘Pantry’ at the top floor via the ‘Vortex’, and then filter back down the building using either the central spiralling ramp or by using the scenic lifts, which use an off-set rear-mounted running frame; a world first. The Vortex is therefore vital in its position as the first point of contact for the building’s users and visitors, with its stunning timber form setting a high standard that is reflected throughout the entire building in which it sits.

The Vortex sits in the main reception of the Bloomberg European HQ in London, envisaged as the place where the building’s different users first converge before moving up to the Pantry. The space is defined by three large curved walls of timber, respectively rotated 120 degrees and reciprocally connected at the top, creating a twisting effect in this large hall. The underlying geometry is strictly connected to the hypotrochoidal function that describes the seven-storey connecting ramp, which sits right above the vortex. The structure consists of a double wall, constructed as a

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stressed skin in a series of pre-assembled cassettes, where the main joists have been carefully oriented to generate the curvature of the surface, but keeping the timber elements straight.

The skeleton, made of vertical joists and horizontal noggins, is filled with thermal insulation and covered by a double layer of ply, glued onsite in a staggered pattern on each side of the wall, allowing the stresses generated by the curvature of the surface to be absorbed within the structure. As the ply surface follows the developable lines

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ST AWARDS 2018 of components, including pre-drilling all the holes for connections and chamfering of timber to create the required curvature in the structure. The digital model used for compiling the cutting list was also used for quality control (the structure had approximately 4,698 individual pieces) and for assembly instructions. Each individual piece was affixed with a barcode that the fabrication and assembly team could log against the cutting list. By using this approach, it could be ensured that pieces for a particular cassette were shipped together, avoiding delays at the assembly stage.

From the early concept stage the geometry defining the surface was shared with the design team in a 3D environment. The exchange of a common definition allowed tweaks in the design to be shared both ways using a platform native to both Foster + Partners and AKT II. In a fully automated process, all timber joists were CNC cut to the required length and predrilled with the fixing locations. Once cut, the pieces were pre-assembled into segments, referred to as cassettes, ready for transport to site. The use of prefabrication in this way meant the area occupied by the structure was kept to a minimum, therefore reducing the impact on other trades and expediting the on-site construction time.

set out by the joists below, the curvature is achieved by cold bending the ply on site against the skeleton, removing the complexities of double curvature and providing a smooth setting out surface for the additional layer of cladding.

Throughout the project we utilised the latest in digital fabrication technology and off-site assembly to deliver a contemporary design that was quick, easy and safe to install.

This project demonstrated all the cornerstones of BIM – joined up thinking, common geometry and setting out and a continual flow of knowledge between all parties. From the outset, the structure was designed with construction in mind.

Fixing details between cassettes were worked into the original design. This type of thinking, alongside the use of prefabrication techniques, made construction quicker and safer, leading to savings on the initial programme. Construction was further improved through the digital fabrication

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A key objective was for the Bloomberg HQ to be an exemplar of sustainability, and the design achieved a BREEAM Outstanding rating with the highest design-stage score ever achieved by any major office development. High-quality, natural, selffinish materials were selected wherever possible to not only promote a greater sense of well-being, but also for durability in order to minimise maintenance and reduce requirements for repair and renewal.

Wherever possible, materials were either made from recycled content or from a material that is inherently recyclable in the future. Timber clearly meets all these criteria; a natural material that ages gracefully and can improve in appearance over time. All timber used in the project was FSC-certified and sourced from within Europe. Materials were assessed for embodied energy based on its whole life cycle, where high-quality, low maintenance and enduring materials were sourced globally to deliver a building that will stand the test of time and improve with age, rather than require regular renewal and replacement.

For more information and general enquiries visit: www.akt-uk.com www.bloomberg.com/company/london

BUILDING PRODUCTS

Brick Slip Cladding versus Traditional Brickwork Brick is a popular finish and one of the best ways to achieve it on a timber frame building, without compromising the speed of delivery benefits of the project, is to use a brick slip cladding system, says Richard Haines, director of Eurobrick Systems.

Timber framed buildings are specified for many reasons and speed of delivery is one of the main factors. Brick cladding systems are also quick and easy to install and some systems only require semi-skilled labour. The ongoing skills shortage in the construction industry is a real concern and in a sector that is expected to grow in the coming years, reducing the dependency on traditional trades will help ease these pressures.

The brick slip market has grown significantly in recent years and there is now a wide selection of manufactured brick slips and corners available. Cut-brick slips are also an option, and while they are more costly, this can allow for a broader choice including traditional stock styles.

Kiln-fired clay brick slips weather and age in the same way as conventional brickwork so a brick slip exterior will require little to no maintenance over the life span of the cladding system.

01 There are many advantages to brick slip cladding. But most notably for the structural timber sector, a real brick finish can be achieved without losing the speed of delivery benefits.

For more information on Eurobrick and its brick and stone cladding products visit: www.eurobrick.co.uk IMAGES: 01. Brick slip systems are becoming increasingly popular with a wide selection of finishes

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ST AWARDS 2018

WINNER Engineer of the Year COMPANY: Arup Project: The Macallan Distillery

CATEGORY SPONSOR

The beautiful roof to The Macallan Distillery is one of the most challenging timber structures ever built in the UK and consists of five domes which mirror the surrounding landscape. Arup and RSH+P developed the scheme design for the roof, with Wiehag joining to complete the detailed design, manufacture and installation.

The project brought together several organisations – including designers and contractors – who were willing to work collaboratively together to address and solve all of the issues needed to bring such an awe-inspiring concept to reality.

The roof demonstrates what can be achieved when an engineer and an architect truly collaborate on identifying and addressing the various parameters of a scheme which condition their design. The form responds to the building use, but is also structurally efficient. The undulating profile is visually attractive, identifies the various spaces in the building yet also helps

to achieve the robustness demands on the building. Internally, the soaring timber grillage provides the perfect backdrop to the celebration of whisky distilling which The Macallan Distillery represents.

The form of the roof was generated by responding to the need to allow the heat generated by the distilling process to rise.

Married to this was a wish to reflect and contribute to the setting. Utilisation of material to maximise its capacity was key to the engineering strategy. The glulam beams which form the roof are placed where their lightness and bending capacity can be demonstrated. In areas of additional

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shear stress, LVL is mobilised to assist. The domes of the timber grillage sit on a steel tension ring, which in turn is supported by inclined steel columns which take the resulting thrusts into concrete shear walls and thus into the ground. The distillery is set into the ground and by separating the roof from the earth, lateral pressures are relieved, allowing the roof to ‘float’ above.

The engineering design for The Macallan Distillery is based on the function of the building, embracing the challenges that result. The geometry reflects the need for heat generated by the process to rise in an ordered manner. Repetition reflects the

ST AWARDS 2018 repeated process installation. Focus on the visitor centre is achieved by the higher, steeper dome. Use of domes allows the key strengths of timber to come to the fore.

Using different types of engineered timber together reinforces the material where it is weak. The 200 mm wide beams have a 160 mm wide glulam core with 2 x 20 mm structural LVL cheeks either side. The LVL cheeks provide additional shear capacity, yet also form a channel to the underside of the beams, where, combined with the bevelled glulam soffit, clear detailing of junctions is achieved. Other aspects of the design are subtle, yet key to its solution.

Separation between the roof and the ground removes large lateral loads from the roof, allowing it to ‘float’ above the process hall and visitor centre. Designing the timber grillage to be stable without the use of a diaphragm removes significant shear forces from the timber. Taking this global view allows the material to be expressed fully and utilised with skill. This exemplar of

design and construction is only achieved by all parties collaborating openly. Early and regular discussion of details, fabrication methodologies, erection procedures is necessary to ensure the drawn design is realised in fact.

The concept of the project relies on the knowing use of geometry to assist in allowing structural materials to perform efficiently. The roof is relieved of earth pressures by being lifted away from the ground, even though the whole building is built into the landscape. The building form responds to the environment created by the distillation equipment, yet such geometry also assists in achieving the spans necessary. The roof beams in the grillage consist of a 160 mm thick glulam core with 2 x 20 mm LVL cheeks either side. The LVL cheeks help to reinforce the glulam core’s shear capacity, crucial at connections. The adoption of the LVL cheeks also enabled, in zones of high tension or shear, composite

sections with steel inserts to be achieved without altering the prevailing aesthetic.

Engineering design skill was as key a component in achieving that as deep knowledge of the materials used, and thus the most efficient way to detail and orient elements, allowed the fabricators and installers to erect the roof seamlessly.

The rolling expression of the facetted timber roof provides the key backdrop to the celebration of whisky distilling that this building represents. This is an important building that will influence clients and practitioners worldwide for years to come, as in addition to it beautiful appearance, it perfectly demonstrates how the right choice of materials including solid timber, results in a functional, practical structure that performs with minimal maintenance in challenging conditions.

For more information and general enquiries visit: www.arup.com

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ST AWARDS 2018

WINNER Product Innovation Award COMPANY: Moduloft Project: Chippenham Bungalow

CATEGORY SPONSOR

The Chippenham bungalow was a large scale project with four bedrooms and three bathrooms and demonstrated the ability to take an existing property and enhance it to add a new timber-based roof structure that is well designed and improves the value of the property.

The Chippenham Bungalow project was a traditional detached bungalow set in a large flat plot where property owners purchased a much sought after property in Chippenham.

After purchasing, the owners could see the potential to extend upwards and started to look at plans for a regular loft conversion, however this would be too low and not give them the space they wanted.

Moduloft’s factory build solution meant the customer could visit during the build and were thrilled to see their new space in progress, the company set up timber frame into room structures for their first walk through, this stage always exceeds customer’s expectation as they get a true sense of the space they are going to gain.

They can also alter rooms at this point and select the fixtures and fittings (lighting, doors and windows).

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The property had plenty of character from the brick work to the chimney. The chimney was a feature that the design team wanted to retain and the finished result shows that this original feature works well. The skill of the Moduloft design team for this project was how to retain the existing chimney and work around this to complement the overall look of the property. Plus the staircase to open up into a gallery landing from the main front window which adds not only

ST AWARDS 2018

daylight but an impressive statement to the overall design of the new roof space.

The project set a key milestone for the business as one of the largest Modulofts to date – it contained four bedrooms and three bathrooms, all came fully-fitted on delivery. The challenges were to ensure the design and structure of the build could accommodate the existing chimney and also the current property take the height and weight of the new space. Planning and accuracy were key for this project and every stage was well planned. The customer needed a thorough journey through each stage of the build and then the critical delivery, lift and install. Despite some fresh challenges of scale on this one we successfully delivered within 12 weeks to our high standards.

Timber was used wherever possible for structural and aesthetic purposes. Use of existing technologies such as attic trusses, glulam beams, flitch beams, timber cladding, to deliver very quick turnaround.

Timber for the superstructure keeps the modules lightweight which is important as they are in effect applying them to the

current property structure. Plus timber also gives design flexibility which is key as every property and project varies.

All timber is sourced from sustainable sources with either PEFC or FSC certification. Quality control and a factory build solution means high standards of materials and with a highly skilled team Moduloft produces not only a robust solution but one that meets industry standards. Factory build, provides customers with opportunity to oversee the progress of the build. Controlled factory build ensures quality checks take place through the process. Fixtures and fittings are all part of the process so that as much is done in the factory as possible to reduce time on site.

The market opportunity for Moduloft is loft conversions that are made to measure with a unique modular offsite solution that can work for domestic and commercial properties. Having been market leaders as Trussloft for 30 years offering traditional loft conversions, they have worked with timberbased solutions for many years and become a key evolution of the business to offer

modular offsite timber frame conversions.

Moduloft are advancing offsite technology with a patented build method using traditional build method roof trusses, in a unique way to deliver offsite manufactured rooms.

Moduloft stretched the design and created a finished roof space that has more than doubled the space for the family but also totally transformed this property from start to finish. The property now is a fantastic mix of the old and new. The project from start to finish took 12 weeks, including two weeks onsite to complete the install.

The family are thrilled with the new space and were overwhelmed by Moduloft and how quickly the new space was built delivered and installed. Feedback we have received about the onsite team has been fabulous, the family felt the focus on quality, attention to detail and willingness to do the best possible job was outstanding and certainly exceeded expectations.

For more information and general enquiries visit: www.moduloft.co.uk

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High Performance in Timber Construction We stand for quality, innovation, reliability and construction excellence since 1983. neue Holzbau AG are specialists in timber construction engineering and our GSA® Technology is unique and innovative. We are key partners in our industry and are a link between timber construction, architects and contractors. Whether you prefer advisory services, engineering services or the total project package from the beginning to completion, we are happy to accommodate your needs. We specialise in designing high-performance connectors and we research new connector technologies, bonding techniques and the use of different types of timber including hardwood.

PRODUCTION TECHNIQUES Our planning department is very experienced, capable and efficient and thanks to our direct relationship with production, we can advise you in each step of the process so you can reap the benefits of our experience as we guide you through every project phase. From your plans, we can undertake the engineering, shop drawings and materials list as well as production process. We will organise the transport and logistics, ‘pack and go’ and will deliver the products to the site ‘just in time’.

We will support you in the assembly and fitting. Our latest CAD/CNC technology and user-friendly plugs bring a high level of efficiency to the project. In our research laboratory, we are developing new possibilities with the use of 3D technology for timber construction engineers and if required, we can also provide an informative 3D visualisation for your customers.

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07

06

With the development of GSA® Technology, neue Holzbau AG has established itself as a leader in timber connector techniques. The following show the diversity of our company: • • • • • • • • • • • • •

Tesco Store, UK Community Centre, UK Pavilion, Olympic Winter Games Sochi, RUS Porta Nuova Garibaldi, Milano, IT Entry Portal in Oak, Volvo Munich, DE Jesus College, Cambridge, UK The Field Centre, UK Somerstown Community Centre, UK Lower James Street, London, UK NWCD, Birmingham, UK Schoolhouse North Strathfield, AUS Dome Structure, AZE Buga Garden Trade Fair, Koblenz, DE

GSA TECHNOLOGY GSA® Technology is currently the highest performing and most complete connector system in timber construction.

Together with Professor Ernst Gehri, neue Holzbau AG has developed GSA® Technology, an innovative connector system for timber projects. GSA® Technology is a high-performance connection technology for modern timber engineering, in which threaded steel rods are glued to glulam and hardwood with epoxy resin.

We have been implementing this system for two decades, and GSA® Technology can be found in more than 2,000 projects worldwide. Our in-house research laboratory allows us to test specific objects and quickly present relevant certification.

GSA® Technology offers a number of key advantages: • Standardised system – this means high availability and a short response time.

• Higher level of completion – this means a higher level of precision and quality, as well as lower costs.

• Architecture – aesthetically appealing, nearly invisible connections.

• Fire prevention – the connectors are protected, thereby improving fire behaviour.

• Efficient assembly due to the plug GSA® connector elements. neue Holzbau AG has over 10 years of experience in manufacturing glulam made of hardwood. Hardwood shows strength values that exceed the more frequently used construction timber made of pinewood. Especially its crush resistance and tensile strength, but also its fibre-parallel push and pull stability that considerably exceeds the quality of pinewood. Furthermore, the significantly higher efficiency of the fastener in the hardwood plays an important role.

BUILD WITH TIMBER – PROTECT THE ENVIRONMENT Burning timber releases the same amount of CO2 that the tree absorbed during its growth. When used for building, the CO2 is stored. A total of 766 kilograms of CO2 is stored in one cubic metre of spruce, while ash and beech store 1,125 kilograms of CO2 per cubic metre. Each year we process nearly 9,000 cubic metres of timber and store around 7,500 tons of CO2. A car emits an average of 200g of CO2 exhaust fumes per kilometre. So 7,500 tons equals around 37.5 million kilometres of exhaust fumes. It’s clear that our customers make a huge contribution to protecting the environment.

IMAGES: 1 & 2. GSA® Technology. Courtesy Holzbautechnik Burch AG, Sarnen, 3. New tennis halls, Bürgenstock Hotels & Resort. Courtesy Emanuel Ammon, Aura Fotoagentur / neue Holzbau AG 4. Tribune Kulm Hotel, St. Moritz. Courtesy A. Freund Holzbau GmbH, Samedan / Hr. Pfeffinger / neue Holzbau AG, 5. New assembly hall PC24 Pilatus Aircrafts, Stans. Courtesy Pilatus Aircraft Ltd, Stans, neue Holzbau AG, 6. Jesus College, Cambridge: Courtesy neue Holzbau AG, 7. Team n’H International for the UK market Jurg Stauffer (Engineer) with Reto Schneider (Sales)

For more information visit: www.neueholzbau.ch/en

FIRE SAFETY

Protection and Prevention The award-winning Fire Door Safety Week campaign reached a new high in 2018, gaining support from more than 350 individuals, organisations and businesses with nearly 30,000 visits to the campaign website so far this year – up 44% from 2017. almost three quarters of flat tenants would ignore the guidance to ‘stay put’ if there was a fire in their building and their particular flat was not affected, indicating a lack of confidence in their building’s ability to stop the spread of fire or smoke.

01 The week is run by the British Woodworking Federation (BWF), the Fire Door Alliance and the Fire Door Inspection Scheme, in partnership with the Home Office’s National Fire Safety campaign. It aims to stamp out the legacy of neglect of fire doors across the UK, while raising awareness of the crucial role that fire doors play in protecting lives.

As part of the campaign, a poll of 1,000 UK adults in rented accommodation was conducted to highlight attitudes towards fire safety – and results demonstrated that there is still much more to do to ensure that standards within the industry are raised.

The shocking responses showed that only a quarter of tenants have been reassured or had discussions with their landlord about fire safety in their building. With so little done to address the concerns of tenants, landlords still have a long way to go meet their fire safety responsibilities. In addition,

Hannah Mansell, spokesperson for the Fire Door Safety Week campaign, as well as BWF Head of Technical Research and Insight, Chair of the Passive Fire Protection Forum and a Trustee of the Children’s Burns Trust, said “This year’s campaign reached a new high. Gaining our largest number of supporters to date, it brought together supporters from the construction supply chain, housing associations, fire and rescue services, action groups as well as members of the public. But even with this year’s reach and engagement, it’s clear that our work is not done. It’s easy to see that fire doors remain an area of neglect across the

UK, with poorly installed and maintained doors regularly reported to us.

Over the next 12 months, the BWF will continue to raise awareness of the lifesaving role of fire doors and importance of third-party certification to help improve building fire safety as we move into 2019 and begin planning for next September’s campaign.”

For more information on Fire Door Safety Week visit www.firedoorsafetyweek.com The WIS Performance of Fire-Resisting Timber-Based Doorsets is available at: www.trada.co.uk/publications

IMAGES: 01. The Fire Door Safety Week has had a highly successful 2018 campaign

Performance of Fire-Resisting Timber-Based Doorsets A revised wood information sheet (WIS) is now available from TRADA to guide architects, quantity surveyors, building surveyors, building control officers, fire prevention officers and builders through the various performance requirements for timber fire-resisting doorsets and makes recommendations on their specification.

Fire-resisting doorsets are required to be able to contain a fully developed fire, to facilitate escape of a building’s occupants and allow fire-fighting, and to protect the structure from the effects of fire. Resistance to fire, expressed in terms of time – ‘fire resistance time’ – is therefore imperative for doorsets. This fire resistance time is determined by a test in which a doorset is exposed to a ‘standard’ fully developed fire in a test furnace until failure occurs according to certain criteria – this ‘standard’ fire condition is defined by the relationship between the duration of the fire and the temperature reached.

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FireWright your construction timber with our FR Build flame retardant treatment

The FireWright FR Build treatment has been specifically designed, in line with HSE recommendations, to considerably improve the fire retardation of timber frame buildings under construction.

The low pressure double vacuum treatment process is carried out in our BS EN ISO 9001 accredited treatment centre. The chemical formulation contains a yellow dye which is added for site recognition.

Key Features & Benefits

Application

• No kiln drying required.

• Preservative class 2 to European standard EN 355.

• Non corrosive to metal fixing and fastening.

• Lead times to suit industry requirements.

• Floor Joists, rims and blocking – Sawn Timber.

• Decking – Plywood (15mm minimum).

• Timber Framing – Softwood (C16 minimum).

• Sheathing – Plywood (9mm minimum).

Quality Assurance • BS EN ISO 9001 – Our treatments are applied in a factory controlled process.

Storage

FireWright your FireWright FireWright your your construction timber construction timber construction timber with our FR Build flame retardant treatment

• Currently undergoing compliance auditing under the WPA FR Build Benchmark Scheme.

• FireWright FR Build treatment has been tested to STA methods for ignition and fire growth.

FR Build treated wood and wood based materials must not be left out exposed to the weather before assembly and erection on site. Adequate weather protection, such as sheeting with adequate ventilation, should be used if stored on site.

• Each pack of timber is uniquely identified and is traceable back to our treatment centre.

with our FR Build flame retardant treatment with our FR Build flame retardant treatment

The FireWright FR Build treatment has been specifically designed, in line with HSE recommendations, to considerably improve the fire The FireWright FR Build treatment has beenconstruction. specifically designed, in line with HSE recommendations, to considerably improve the fire retardation of timber frame buildings under The FireWright FR Build treatment has beenconstruction. specifically designed, in line with HSE recommendations, to considerably improve the fire retardation of timber frame buildings under The low pressure double vacuum treatment process is carried out in our BS ENMobile: ISO 9001 accredited treatment centre. The chemical retardation of timber frame buildings under construction. firewright.co.uk Hull: 01482 338950 Rochester: 01634 715577 07912 280742 Lewis@firewright.co.uk The low pressure double vacuum process carried out in our BS EN ISO 9001 accredited treatment centre. The chemical formulation contains a yellow dye treatment which is added for is site recognition.

The low pressure double vacuum process carried out in our BS EN ISO 9001 accredited treatment centre. The chemical formulation contains a yellow dye treatment which is added for is site recognition. formulation contains a yellow dye which is added for site recognition.

Key Features & Benefits Key Features & Benefits • No kiln drying required.

Key Features & Benefits • No kiln drying required.

• Preservative class 2 to European standard EN 355.

• No kiln dryingclass required.

2 to European • Preservative Non corrosive to metal fixing and standard fastening.EN 355.

• Preservative class 2 to European standard Non corrosive to metal fixing and fastening.EN 355.

• Lead times to suit industry requirements.

• Non to metal fixing and fastening.

Leadcorrosive times to suit industry requirements.

• Lead times to suit industry requirements.

Quality Assurance

Quality Assurance • BS EN ISO 9001 – Our treatments are applied in a Quality Assurance • BS EN ISO 9001 – Our treatments are applied in a

factory controlled process.

• factory BS EN ISO 9001 –process.

Our treatments are applied in a controlled • factory Currently undergoing compliance auditing under the controlled process.

• WPA Currently undergoing compliance FR Build Benchmark Scheme.auditing under the • WPA Currently undergoing compliance FR Build Benchmark Scheme.auditing under the • WPA FireWright FR Benchmark Build treatment has been tested to STA FR Build Scheme.

• methods FireWrightforFR Build treatment has been tested to STA ignition and fire growth.

• methods FireWrightforFR Build treatment has been tested to STA ignition and fire growth.

• methods Each pack timber and is uniquely identified and is forofignition fire growth.

• traceable Each packback of timber uniquely centre. identified and is to ouristreatment • traceable Each packback of timber uniquely centre. identified and is to ouristreatment traceable back to our treatment centre.

firewright.co.uk firewright.co.uk firewright.co.uk

Hull: 01482 338950 Hull: 01482 338950 Hull: 01482 338950

Application FireWright from WJ Group Application • Floor Joists, rims and blocking – Sawn Timber.

Application • Floor Joists, rims and blocking – Sawn Timber.

• Decking – Plywood (15mm minimum).

• Joists, rims and blocking – Sawn Timber.

• Floor Decking – Plywood (15mm minimum).

• Timber Framing – Softwood (C16 minimum).

• Decking – Plywood (15mm minimum).

• Timber Framing – Softwood (C16 minimum).

• Timber Sheathing – Plywood (9mm minimum).

• Framing – Softwood (C16 minimum).

• Sheathing – Plywood (9mm minimum).

• Sheathing – Plywood (9mm minimum).

Storage

Storage FR Build treated wood and wood based materials must Storage FR Build treated wood and wood based materials must

not be left out exposed to the weather before assembly FR Build wood and wood based materials must not lefttreated outon exposed to the weather assembly andbe erection site. Adequate weatherbefore protection, such not be left outon exposed to the weather before assembly and erection site.

Adequate weather protection, such as sheeting with adequate ventilation, should be used if and erectionwith on site.

Adequate weathershould protection, such as sheeting adequate ventilation, be used if stored on site. as sheeting with adequate ventilation, should be used if stored on site. stored on site.

Rochester: 01634 715577 Rochester: 01634 715577 Rochester: 01634 715577

Mobile: 07912 280742 Mobile: 07912 280742 Mobile: 07912 280742

Lewis@firewright.co.uk Lewis@firewright.co.uk Lewis@firewright.co.uk

FireWright from WJ Group FireWright from WJ Group FireWright from WJ Group

TTBS

Helping Hands Ivan Savage, General Manager & National President of the Timber Trades Benevolent Society (TTBS), gives a reminder to everyone operating within the timber industry about what the organisation can provide. activities, which provide a calendar of social events for the timber trade throughout the year, donations from companies and individuals connected to the timber trade and also, over the years, from some extremely generous legacies from past members of the timber trade.

01 Assisting the retired and less fortunate from the timber industry – the registered charity TTBS has been operating throughout the UK since 1897 – and has a UK central office based in Staffordshire. Originally founded in London in 1897 and thereafter with voluntary Regional Committees covering London, Home Counties & East Anglia, Southern, Bristol & Western Counties, South Wales, Midlands, Yorkshire & Humberside, North West, North East & Cumbria and Scotland.

The Society is an active member of the Association of Charitable Organisations (ACO) which is the national umbrella body for Trusts & Foundations that give grants and welfare support to individuals in need.

For more information on this visit: www.aco.uk.net The Society is funded by annual dividends from a well-managed investment portfolio, built up since the 1897 formation, together with national and regional fundraising

The TTBS not only assists aged and retired timber trade members and their dependants, but also some much younger who have fallen ill, have become severely handicapped or who have lost their partners and are still caring for their children.

The timber trade sectors covered by the TTBS charity criteria includes companies engaged in the trading and distribution of wood based products, such as timber importers and agencies, timber merchants, timber-based sheet material importers and merchants and more recently, trussed rafter association (TRA) fabricator member companies and accredited timber preservative processing companies, with employees involved with treatment of bulk timbers for the above end users.

All TTBS benefits are discretionary charitable payments, which can be reviewed or revised by the Trustees at any time and as such, should not normally affect any other entitlement to benefits provided by the State. TTBS benefits are numerous, but include regular quarterly allowances, telephone rental allowances, TV licence payments, a winter warmer fuel grant, Christmas and Spring payments, luxury Christmas hampers and occasional respite and funeral grants, together with one-off purchases of white goods and televisions.

72 | www.structuraltimbermagazine.co.uk | STMAG

The TTBS would welcome new applications from employees from the timber trade sectors listed earlier, who have been employed in the industry for at least 10 years (or five years in exceptional circumstances) and who require assistance.

These applications will then be referred to the Regional Committee closest to the applicant’s home address and employment and a visit arranged by the local representative to discuss specific needs.

Thereafter, the Regional Committee will make benefit recommendations to the TTBS General Manager, which will then be considered by the Trustees and Board of Management.

For further information or an application please contact: Ivan Savage, General Manager, National President, TTBS, 19 Church Lane, Oulton, Stone, Staffordshire ST15 8UL. Telephone 08448 92 22 05 Email: info@ttbs.org.uk Visit: www.ttbs.org.uk Registered Charity No 207734

IMAGES: 01. Ivan Savage

Established for 30 years Independent design consultancy Professional and reliable service - Timber frame, Glulam, Oak, engineered timber and steel - Buildings up to eight storeys tall - Houses, apartments, schools, hotels, student accommodation and garages - Feature trusses, framed buildings

Chartered Engineers and Designers specialising in Timber Frame

- Design packages with structural calculations and manufacturing drawings for walls, floors, roofs and frames - Fabrication detailing for steelwork - Trussed roof and floor designs - NHBC certification

01252 782366 info@rushmooreng.co.uk www.rushmooreng.co.uk

English & Continental Hardwood Specialists

As Europe’s leading specialist supplier of English and Continental Hardwood, Whitmore’s recognises a responsibility to its customers, suppliers and staff to base its commercial activities on well managed forest resources.

For over 100 years Whitmore’s have been supplying craftsmen and specifiers nationwide, with quality hardwoods, sawn and seasoned with care.

From our centrally located site in the village of Claybrooke Magna in Leicestershire, we stand as the country’s most specialist suppliers of English and Continental hardwood timbers.

With our wide range of sizes and grades of English, Continental and North American hardwood species, we have a vast range of timbers for use in construction, joinery and furniture. We also stock a range of specialist products such as flooring, decking, worktops and offer a full machining service.

01455 209121 fax: 01455 209041 e-mail: sales@whitmores.co.uk www.whitmores.co.uk

DATES FOR YOUR DIARY If you are interested in learning more about offsite construction in the timber sector and the associated manufacturing processes then choose from some of the timber specific events taking place in in the first half of 2019:

DATE 12 Feb 19

EVENT

VENUE

WEBSITE

Explore Offsite Housing

QEII Centre, London

www.exploreoffsite.co.uk

HOUSING

Experts have hailed offsite construction as the only way to respond to the demand for new housing. Moving the construction of houses into factories enables the build to take place both efficiently and economically, making the national shortage of labour less of a concern. This conference brings together technology leaders to discuss the growing opportunities that the housing shortage presents for offsite construction solutions.

5-7 March 19

Futurebuild

ExCeL, London

www.futurebuild.co.uk

A fresh format that’s nothing like an ordinary trade show bringing together the most innovative, exciting and inspiring brands, companies, speakers and experiences. The centrepiece will be the comprehensive conference programme curated by top industry figures surrounded by eight unique ‘futurebuild hubs’ that will each explore a different aspect of the built environment.

5 March 19

Offsite Construction Awards

ExCeL, London

www.offsiteawards.co.uk

Celebrate the best in precision building design and delivery at the Offsite Construction Awards. The Awards will reward outstanding examples of prefabrication and factory-based methods, products, systems and disciplines that increasingly strive to develop a sustainable, streamlined and costeffective way to deliver a better built environment. Entries close 11 January 2019.

30 April 19

Tall Buildings Conference

London

www.tallbuildingsconference.co.uk

Tall buildings present unique challenges in terms of both design and construction. Their sheer scale demands that particular attention is paid simultaneously to strategic and detailed issues. This event is intended to assist engineers in understanding the common challenges associated with transferring standard engineering principles and knowledge from low-rise structures to tall buildings.

21 May 19

Solid Wood Solutions

London

www.solidwoodsolutions.co.uk

Solid Wood Solutions will feature case studies on some of the major solid wood projects which have been delivered recently throughout the UK and Europe and this is supported by an exhibition of CLT and Glulam suppliers as well as complementary component manufacturers.

We will be exhibiting at Ecobuild, 6-8 March be H50 exhibiting at Ecobuild, 6-8orMarch Visit We our will stand for 1-2-1 workshops Visit our stand H50 for 1-2-1 workshops or CV and careers advice CV and careers advice

0117 959 2008 0117 959 2008 www.arvsolutions.co.uk www.arvsolutions.co.uk info@arvsolutions.co.uk info@arvsolutions.co.uk

With a passion for construction industry, we the UK’s WithWith a huge huge passion for the the industry, we are are a huge passion forconstruction the construction industry, wethe are the UK’s leading recruitment consultancy for the offsite sector and leading recruitment consultancy for the offsite sector and its supply UK’s leading its supply chain. recruitment consultancy for the offsite sector and chain. its supply chain.

Over80% 80% of of our business • Over businessisisrepeat repeatororreferral referral • Over 80% of our business is repeat or will referral •• Many of our vacancies are exclusive - you not find them Many of our vacancies are exclusive - you will not find them elsewhere • Many of our vacancies are exclusive - you will not find them elsewhere • We have dedicated divisions for Manops, Sales, Design and elsewhere • We have dedicated divisions for Manops, Technical, International, Manufacturing, etc. Sales, • We have dedicated divisions for Manops, Sales, Design and Technical, International, Manufacturing, etc.

• Our consultants are experts in their fields and will understand Design and Technical, International, Manufacturing, etc.

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2019

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