Structural Timber Magazine - Summer Issue 20 by Radar Communications

SUMMER 2019 | £4.95

STRUCTURAL TIMBER The latest in structural timber building design and technologies STRUCTURALTIMBERMAGAZINE.CO.UK

ZÜBLIN TIMBER

HOUSE IN A GARDEN TAKES SELF-BUILD INTO A NEW DIMENSION

P26

Military Manoeuvres

Collaborative timber frame construction on the huge Salisbury Plain service housing development.

P38

Performance Based Specification of Wood

Ed Suttie, Director at BRE outlines how Project CLICKdesign is set to kick-start a knowledge revolution.

P42

Structural Timber Awards 2019

Check out the projects, products and people shortlisted at this year’s sold out event.

DESIGN

TECHNOLOGY

SUSTAINABILITY

INTERVIEWS

NEWS

ANALYSIS

CASE STUDIES

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WELCOME Welcome to the summer edition of Structural Timber Magazine where we concentrate on performance related issues surrounding timber and look to the shortlist of the Structural Timber Awards 2019.

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Confidence in the material you specify is everything to architects, structural engineers and contractors. Timber’s characteristics and how it performs in various end-use applications is also essential to grasp. But as BRE’s Ed Suttie tells us, this knowledge is often ‘locked up in standards, experts’ heads, databases and previous research projects. Making it accessible would help get the right product specified for the end-use application against a desired performance, from structures to cladding, windows to landscaping uses.’ As an aid to this a European consortium is working on a three year research project called CLICKdesign, with a view to delivering ‘fingertip knowledge’ on the service-life performance specification of wood – read more about this potentially far reaching development on page 38. As living our lives and acting in a more responsible, sustainable way is expected, it is important to remember that poorly insulated homes and energy inefficient buildings are as carbon unfriendly as the much maligned transport networks. A recent report by the Committee on Climate Change questioned this and asked if the UK’s housing was fit for the future. In response David Russell, Director at Carbon Futures,

explains how having a well-designed high-performance thermal envelope, airtightness and well-designed ventilation – allied to timber and offsite manufactured homes – can help reduce carbon emissions across the built environment. Also, as the APPG for the Timber Industries launches an inquiry into how timber can help solve the housing crisis, the use of more timber – especially in hybrid construction – is crucial if the UK is to get anyway near hitting those 2050 net-zero carbon emissions targets. Finally, the Structural Timber Awards are fast approaching. Each year has seen a huge step up in the amount and quality of the entries from across the timber industry. The expert panel of judges has whittled everything down to a shortlist that you can see on pages 42-53. The direction and levels of expertise that timber architecture and engineering displays is truly inspiring to see. Good luck to everyone involved on what will be a bumper night out. Many thanks to all our contributors, advertisers and supporters.

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

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• Members of Structural Timber Association. • Extensive experience of applying STA guidance and research. • Determination of category of frame needed. Protecting people and property since 1982

FIRE ENGINEERING CONSULTANTS

• Advice on appropriate solutions to reduce the risk of fire spread to surrounding buildings. • Use of advanced computer modelling techniques to analyse timber frame proposals and provide a cost effective solution.

The multi-disciplinary team comprises both chartered and graduate engineers, with specialist experience in fire protection and fire engineering, and experienced fire safety professionals with backgrounds in local authority fire and rescue services. For further information visit our website:

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CONTENTS

THISISSUE... P6

P30 MODERNISING THE CONSTRUCTION INDUSTRY

Factory-manufactured buildings are seen as the ideal modern construction method. The STA is working hard to place timber at the forefront of this building revolution.

COVER STORY - ZÜBLIN TIMBER Finalist in the Structural Timber Awards for Residential Project of the Year – House in a Garden – embraces detail, design and fabrication by ZÜBLIN Timber including a complex glulam roof structure. Using a palette of natural materials, this project goes beyond the realms of self-build and enters a new vernacular that could be described as ‘installation art’.

P32 CHANGING HOUSING PERCEPTIONS

Swan Housing Association recently launched their own Modular Design Guide based on their learning from their own volumetric modular housing factory.

P36 DOING MORE – BETTER – FASTER

Citu is successfully and rapidly building a carbon negative housing development in Leeds – the first family homes to be constructed in the city centre for more than 90 years.

P38 PERFORMANCE BASED SPECIFICATION OF WOOD

P10

P24

A quick round-up of some recent news stories from the timber and construction sectors that you may have missed including Södra’s Jeremy English appointed to the STA board, the APPG on Timber Industries launch an inquiry into the housing crisis and NBT/SOPREMA confirm merger.

The Dyson Institute of Engineering and Technology enrolled its first undergraduates in September 2017 to inspire a new generation of engineers who are ‘work-ready’. Recently completed new accommodation includes neat CLT pods designed by WilkinsonEyre.

UK INDUSTRY NEWS

CUBE LEARNING & LIVING

TIMBER SUCCEEDS WITH MILITARY PRECISION More on the huge MoD development scheme currently taking place on Salisbury Plain using timber frame to house military personnel and their families. Lovell awarded the construction of the properties to Taylor Lane Timber Frame and Stewart Milne Timber Systems (SMTS).

For more information or to book your place visit:

WWW.TIMBERTALKS.CO.UK

P40 THINK QUICK & THINK QUALITY

Lewis Taylor, Timber Frame Consultant at BM TRADA, discusses the importance of build quality, detailing and sole plates.

P42 STRUCTURAL TIMBER AWARDS 2019

Check out the shortlisted projects, products and people chosen by the expert judges as the industry readies itself for one of the biggest nights of the year.

P26

TIMBER TALKS will shine a spotlight on the ‘best of the best’ in structural timber. This seminar will feature high-calibre speakers who will discuss the aesthetic, commercial and technical possibilities of structural timber through case studies and award winning project examples.

Ed Suttie, Director at BRE outlines how Project CLICKdesign is set to kick-start a knowledge revolution.

P56 ELEMENTS FOR FAST CONSTRUCTION

The new van Hasselt Centre at Cranleigh School is a hybrid structure built using Kerto® LVL for the floor and roof elements and to help stabilise the steel frame.

P58 DELIVERING TOMORROW’S QUALITY TODAY

David Russell, Director at Carbon Futures, outlines how offsite construction can deliver far-reaching thermal improvements for new UK housing.

TIM BERTAL K S SEMINAR // 06 NOVEMBER 2019 // LONDON

COVER STORY ZÜBLIN TIMBER

CREATING THE ULTIMATE HOUSE IN A GARDEN living room, the roof has a floating appearance that enhances the sense of light while connecting the interior of the house to the surrounding landscaped garden, as well as to its urban context. The bedrooms are immediately below ground level, with a generous living space gallery area together with a 10 metre swimming pool a level further below. Lightwells and skylights have been designed to optimise daylight, casting top light onto the walls of the lower ground floors. Using a palette of natural materials, this project goes beyond the realms of ‘self-build’, entering a new vernacular that could be described as a form of ‘installation art’ – a three-dimensional work that transforms the perception of living space. Reacting to the light like a tree, the pavilion type structure floats above the ground revealing distant views through gaps in the cityscape.

01 Finalist in the Structural Timber Awards for Residential Project of the Year – ‘House in a Garden’ – embraces detail, design and fabrication by ZÜBLIN Timber including a complex glulam roof structure.

The House in a Garden started out as a project on a plot of land that the architects themselves intended to develop. This involved the demolition of a 1960s bungalow and its replacement with a largely subterranean house. Once the lengthy planning process was completed, the architect sold the plot and their design to a private client who committed to making the House in a Garden into a home. Externally, the most visible component of the house is its pavilion like copperclad engineered timber roof. Inside, the roof comprises a complex glulam timber structure made from spruce – its double curvature concludes in a glazed oculus. Set above a glass-walled

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Each individual and unique piece of the timber roof structure, designed and fabricated by ZÜBLIN Timber, is curved in three directions and was created from three-dimensional models provided by Gianni Botsford Architects. It was initially thought that the roof’s complex structure could be created digitally using CNC cutting techniques, but it was fabricated using traditional handcraft methods supported by advanced technology.

PROJECT PARTNERS CONSTRUCTION Architect: Gianni Botsford Architects Structural Engineer: Built Engineers

Contractor: New Wave (London) Ltd SPECIALIST SUB CONTRACTOR Glulam Roof Structure: ZÜBLIN Timber

ZÜBLIN Timber, a “House in a Garden” project partner. Timber Construction Competence ZÜBLIN Timber stands for ambitious and pioneered solutions in the field of timber construction. We are your single-source provider for the development, production, delivery and execution of high-quality timber construction systems, from simple to complex engineered timber structures and turnkey project execution. Together with our clients we develop efficient solutions and a sustainable quality of life.

www.zueblin-timber.com

ZÜBLIN Timber GmbH, Industriestr. 2, 86551 Aichach /Germany

“House in a Garden”, London, © Edmund Sumner

Timber Construction Competence

COVER STORY ZÜBLIN TIMBER development of the new skills involved to other projects, but the intention was to create a unique one-of-a-kind house that like a piece of art, cannot easily be replicated. And while eleven years is a seriously long time for any single housing project, the House in a Garden is a shrine to exemplary residential architecture.

ZÜBLIN TIMBER

02 The ribs and lateral rails were first glued and clamped in a single axis curvature with layers as thin as 4mm. These first pieces were then re-sawn and glued to the final 3D curvature. Connection details were agreed to ZÜBLIN Timber’s preferred design, employing skew drilled timber framing screws where possible and by incorporating specially fabricated steel bracketry to carry the higher loads most frequent at the lower ends of the radial ribs. Engineered timber was the key component in achieving the architectural vision, and the most defining feature is its impressive curved spruce glulam roof. The engineered timber elements were brought to site and craned into position in eight sections. The design epitomises the architects’ interest with the manipulation of natural light. Timber recurs throughout the house, adding a subtle tonal warmth to the interior. The contrast between the cool and warm tones of Douglas Fir and carved Carrara marble adds to the sensual quality of the underground spaces. The normal rules and specification motivations do not apply to this architecturally led project. Timber has made a real difference – it has been used not only for its sustainable credentials and strength but specifically to create aesthetic appeal. As a predominately subterranean build, energy consumption and building running costs are reduced through the highly airtight and watertight building fabric below ground level.

03 The house is carved cleverly out of the space within a back garden of a row of houses. Careful to ensure neighbouring buildings are not obstructed, while the new structure gets enough natural light, the architect worked from the ground level and below, excavating down two floors to create a spacious family home. The copper clad glulam roof hints at the modern design within yet remains low so as not to obstruct any of the neighbours’ views. Even though the house is in the middle of London and surrounded by many existing taller structures, when inside you can barely see anything apart from the sky and the courtyard garden, making this home a real, and quite literally, hidden, London gem. Unequivocally, this is a unique and innovative housing solution. The architecturally led project was not a rapid procedure, the design and planning application processes were complex, as was the build – taking a total of eleven years from concept to completion. Handcrafted natural materials such as timber, copper and marble were integral to the design and architectural intent. Materials were chosen for natural beauty combined with sustainability and strength, but this project was about form – creating a small but iconic structure, most of which is not visible above ground level. There are vast learnings from the techniques involved, particularly in crafting the engineered timber elements for the roof and creating light in what could have been potentially very dark spaces. ZÜBLIN Timber will be able to transfer this knowledge and the

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ZÜBLIN Timber stands for ambitious and pioneering solutions in timber construction. They are a single-source provider for the development, production, delivery and execution of highquality construction systems, from timber projects, timber engineering and timber facade installation. ZÜBLIN Timber works hand-in-hand with its clients to develop efficient solutions and a sustainable quality of life. Design & Build - in collaboration with local project teams of architects and engineers ZÜBLIN Timber develop, design, produce and build timber solutions with 100% passion for your project. Production - direct access to own modern production facilities ensures flexible and individual manufacturing of a high variety timber components like CLT, glulam and timber facades. Installation - using decades of experience in project management, project execution and the assembly of timber structures, ZÜBLIN Timber teams are able to guarantee clients a reliable, high-quality construction process. No matter if your project is a multi-story building, a geometrical complex, structure or a building (timber glass) facade – ZÜBLIN Timber is your partner to realise your vision in timber.

www.zueblin-timber.com

IMAGES: 01-03. House in a Garden is a striking and complex project using a palette of natural materials Courtesy Edmund Sumner

UK INDUSTRY NEWS APPG LOOK TO TIMBER FOR ANSWERS

JAMES LATHAM SEEK QUALITY PROJECTS James Latham has launched a competition across its social media platforms to celebrate the best projects and examples of design which have been created using their high-quality timber or decorative products. Using the hashtag #LathamsDesign2019, the competition is inviting designers, architects, joiners, furniture makers – indeed anyone who uses their products – to share their images.

The All-Party Parliamentary Group (APPG) for the Timber Industries has launched an inquiry into how timber can help solve the housing crisis. The House of Commons Library has estimated that between 240,000 and 340,000 new homes need to be built in England per year in order to tackle the existing housing shortfall, and all major political parties have made commitments to support new homes being built. Established in 2016, the APPG for the Timber Industries aims to help grow the use of timber and develop vibrant timber-based industries. This inquiry will explore ways in which the timber industry can help to make those commitments a reality, focusing in particular on issues around skills shortages, sustainability and the capacity within the industry to do more in housing construction. The first oral evidence session took place in July and brought together expertise from the worlds of architecture, housing associations, politics and the timber industry itself. Martin Whitfield, East Lothian MP, and Chair of the APPG for the Timber Industries, said: “Timber is a product which can answer the need for affordable homes, provide workers with better employment opportunities, and help the UK reach net-zero emissions. This inquiry will open up the debate and help more people understand the incredible

ways timber can be used in modern construction as a sustainable and versatile material.” Roy Wakeman OBE, Chair of the Confederation of Timber Industries, said: “We know there is capacity in the industry which can be unlocked from with the right policies, regulatory framework, and partnership between the public and private sectors. By bringing together experts from across the timber supply chain – all the way from the forest to the finished house – we will be able to make an even greater contribution.” Two further oral evidence sessions are planned in Wales and Scotland on 21 August with the final report of the inquiry to be launched in the House of Commons in late October. (Pictured L-R) Martin Whitfield, East Lothian MP, Councilor Vincent Stops, London Borough of Hackney, Anthony Thistleton, Waugh Thistleton Architects Ltd, Ian Millard, Technical Director, L&Q, David Hopkins, Managing Director, Timber Trade Federation, Helen Hewitt, Chief Executive, British Woodworking Foundation, and Roy Wakeman OBE, Chair of the Confederation of Timber Industries. www.cti-timber.org

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The competition, which runs throughout the UK and Ireland, launched in early July and will continue through until 30 September 2019. Selected images will be showcased across Latham’s various social media platforms and the winning entry will receive a £500 voucher for Artist Residence, the boutique hotel group, with venues situated in Brighton, London, Oxfordshire, Penzance and Bristol. Group Head of Marketing Stuart Devoil said: “We are constantly amazed by the high-quality, end-products created by our customers who are designers, joiners, woodworkers, landscape designers, architects, and much more. We know there are some world-class design and craft skills out there, but too often, we don’t get to see where our products and materials end up and what they turn into. We really want to encourage people to share more pictures of their work which showcase their skills.” Using the hashtag #LathamsDesign2019 and tagging Latham’s, anyone wishing to enter can post images on Instagram, Twitter, Facebook using @lathamsltd or via LinkedIn using @james-latham Please read the full T&Cs before entering which can be found at: www.lathamtimber.co.uk

MASS TIMBER SEMINAR

UK EDITION Keen on Timber?

Join us October 2nd-3rd in the heart of London for a two-day training and networking hub for Timber Industry Professionals. The course will focus on hot topics like fire, soundproofing and durability of CLT structures and will allow a constructive learning and sharing. Rothoblaas has been producing and marketing self-created and professionally-tested timber construction products since 1989. Trusted by UK customers since 2010.

INFOS & SUBSCRIPTIONS: www.rothoblaas.com/school › MASS TIMBER SEMINAR UK EDITION

Why choose FSC? FSC® offers credible assurance that the timber products you buy and sell come from responsible sources.

• Improved market access

• Government

Procurement Policy compliance

• Meeting customer expectations

FSC®F000231

• Corporate Social Responsibility compliance

• Enhanced public image

• Use of the FSC trademarks

FSC UK Phone: + 44 (0)1686 413 916 / email: info@fsc-uk.org / web: www.fsc-uk.org / Twitter: @FSCUK

UK INDUSTRY NEWS FORESTRY MINISTER TOURS EGGER HEXHAM

David Rutley MP, Minister for Food and Animal Welfare, with the responsibility for forestry policy in England, visited Northumberland’s largest manufacturing site EGGER (UK) Limited, Hexham along with the UK Government’s Tree Champion, Sir William Worsley. This is the second UK Government Minister to visit EGGER’s Hexham plant this year, with the Minister of State for Energy and Clean Growth, Rt Hon Claire Perry MP visiting in March. These visits followed the publication of the APPG for the Wood Panel Industry’s Expert Working Group Report.

Strategy as the UK Government’s latest commitment to bolstering tree planting in England.

David Rutley’s visit provides a welcomed recognition of the wood panel industry’s role in supporting a strong forestry policy postBrexit. EGGER (UK) Limited has invested a substantial £250 million in UK operations in both Auchinleck and Hexham. This is to ensure it remains at the heart of woodbased materials production within Europe, with now over 800 direct employees. EGGER (UK) Limited’s two manufacturing sites deliver the equivalent of 27,500 lorry trailers of wood-based materials each year. The Minister used the visit to deliver a welcome speech to stakeholders on increasing forestry cover in Northumberland and across the nation, highlighting the new Environment Bill and forthcoming Tree

John Paterson, Director, EGGER Forestry commented: “We were delighted to have the Minister visit our plant where we were able to show him the manufacturing process and range of panel-based products produced in Hexham. Northumberland is a fantastic location for afforestation and we look forward to further discussion on the future of large-scale planting opportunities. EGGER makes a considerable contribution to both the local and national economy and as a company we are encouraged by the initial steps taken recently in terms of woodland creation targets which will be a key component for promoting confidence for this domestic industry in the years ahead.”

Forestry Minister David Rutley MP said: “There is no doubt that forestry is a vital industry in Northumberland, and my visit to Egger’s impressive Hexham plant only confirmed this. I believe passionately that tree planting must be at the heart of our plans as a government. I look forward to continuing discussions with Egger and other stakeholders in the forestry sector on how we can work together in partnership to achieve our ambitious goals.”

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Alastair Kerr, Director General of the Wood Panel Industries Federation (WPIF) added: “We were pleased to continue the constructive conversation with the Minister on the challenges facing our industry as a whole. The principal issue facing the industry is wood security and constraint upon long-term supply limits its growth potential. Future forestry policy needs to detail key planting targets for the next twenty years, which will prove a crucial time for the wood panel industry. We look forward to further discussion on this and energy policy in order to secure the long-term future of this critical domestic industry.” (Left to right: Simon Hart - EGGER Forestry Business Development Manager; John Paterson - Director of EGGER Forestry; Guy Opperman MP for Hexham; Tobias Zimmermann, Plant Director, Technical/ Production, EGGER UK; David Rutley MP, Minister for Food and Animal Welfare; Alastair Kerr - Director General, Wood Panel Industries Federation). www.egger.com

AWARDS 2019 SPONSOR

BARRATT ACQUIRE TIMBER FRAME MANUFACTURER

Futureproof The Evolution of CLT Barratt Developments has completed the acquisition of Oregon Timber Frame Ltd, one of the UK’s largest timber frame manufacturers. In 2018 Barratt Developments announced new targets of volume growth of 3-5% over the medium term, supported by a target of building at least 20% of its homes using an element of offsite construction, including timber frame, by 2020.

COMPLIANT INNOVATIVE COST EFFECTIVE With B&K Structures, the restriction on combustible materials does not mean an end to building with CLT. We achieve highly practical, sustainable structures over 18m.

Over the last three years, Barratt has built 5,500 homes using timber frame construction. It currently uses it in the majority of residential properties it builds in Scotland and is increasing its use across England and Wales. Oregon is one of Barratt’s key timber frame suppliers. Following the acquisition, Oregon will remain based in Selkirk, Scotland where its management team will continue to lead the business, complementing the Barratt operations in Scotland.

• Meeting the Latest Building Regulations • Panelised Hybrid Approach Integrating a CLT Superstructure • Non-Combustible Unitised Wall Panel Systems • Structural Steel Carrier Frame & Non-Combustible SFS Infill Walling

The acquisition has no material effect on the board’s expectations for the financial year. Steven Boyes, Chief Operating Officer of Barratt Developments, said: “We are delighted to announce that we have successfully acquired Oregon Timber Frame, one of the leading timber frame manufacturers in the UK. Barratt is committed to increasing the number of homes we build using offsite construction as part of our overall volume growth aspirations and to mitigate the current skills challenges facing the industry. Oregon is the perfect company to help us do that, with a highly experienced management team, a skilled workforce and a high-quality product.”

• Factory Fitted Added Value Options • No Impact on Cost or Programme • Delivers a Lower Carbon Footprint Compliant System

Rod Lawson, Chairman of Oregon, added: “We’re very proud of what we have achieved over the last two decades, building a successful company with a fantastic workforce. Now we welcome the next chapter with Barratt who are as committed to quality as we are and have exciting plans for the future of both of our businesses.” www.barratthomes.co.uk

www.bkstructures.co.uk

B&K Structures @BKStructures bkstructures

B&K Structures Limited Peveril House Alfreton Road Derby DE21 4AG 01773 853400 sales@bkstructures.co.uk

UK INDUSTRY NEWS LIGNIA SET FOR MORE GROWTH

LIGNIA Wood Company, the South Walesbased modified timber manufacturer has revealed ambitious growth plans, having secured up to £5million development capital funding from its institutional investors. Production is now up and running at the state-of-the-art manufacturing plant in Barry, South Wales and the business is

JAMES DONALDSON & SONS GROUP MD STEPS DOWN

Scott Cairns (pictured) has announced that he will be stepping down from his role as Group Managing Director for James Donaldson & Sons (JDS), effective July 2020.

selling in the UK and exporting to the US. The equity investment, which brings LIGNIA’s total fundraising to £17million over the past three years, will support the planned expansion by funding working capital and the additional capital expenditure needed to increase production capacity. The company has developed significantly since establishing its Barry site three years ago, recently making three high-profile appointments to its leadership team, and will now look to commercialise LIGNIA in the UK, USA and Europe. LIGNIA uses FSC-certified softwood harvested from legal and sustainably-managed forests and modified through a unique process – enhancing its stability and durability – to create products (LIGNIA, LIGNIA Fire and LIGNIA Yacht) which have performance characteristics and aesthetic properties similar to those of popular hardwoods. The timber is designed to be ‘wood made for life’ with greatly improved performance

As the first ever non-family member to lead the group, Scott’s tenure has seen the 160-year-old family business double in turnover to almost £200million, with several consecutive years of record profitability up to the present day. Scott has served as Group MD for the past eight years. Prior to that he was MD for both James Donaldson Timber and MGM Timber and has spent over 24 years with the group. Scott says: “I am proud to have played a part in the guiding, growing and development of our group of companies over my tenure at JDS. The business is in fantastic shape and will continue to grow via organic and acquisitive means. During 2020 it will be the next generation of the family that will develop this special business and lead a truly talented workforce, one which individually and collectively puts our customers at the core of everything we do.” Andrew Donaldson will succeed Scott as the new Group MD. Andrew is currently the Group Finance Director and will also be the sixth generation Donaldson to lead

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against decay and fire. Its product range has been and continues to be tested and approved by independent test laboratories and by LIGNIA’s R&D team at the Barry site. Hans Ng, LIGNIA’s CEO (pictured) said: “LIGNIA has now transitioned from R&D into commercial production. This new investment from our institutional investors will support the expansion needed to meet the growing demand for LIGNIA products, and is a great expression of confidence in the LIGNIA team. There is a recognition among our investors that our efforts are helping to contribute to the efforts to save the planet’s precious resources. We have made significant progress in a short period of time, and this is just the beginning of the next chapter in LIGNIA’s story. We look forward to the future with great excitement.” www.lignia.com

the business. Scott will continue in an advisory role on the Supervisory Board as a Non-Executive Director under the leadership of new Chairman Michael Donaldson in 2020. James Donaldson & Sons has been operating in Fife for over 150 years, and over time has grown exponentially through innovation and acquisition, and investment in key businesses that complement the group’s current capabilities.The six businesses that make up the Group trade and operate independently and are market leaders in their respective fields of timber engineering, saw-milling and distribution, merchanting, roofing and cladding distribution, and laminate manufacturing. As part of the JDS family, they share best practice, innovation, purchasing synergies, and market analysis. www.jamesdonaldsongroup.co.uk

HUNDEGGER ROBOT-Drive

FIRE & TIMBER

CLADDING GUIDANCE STATEMENT TRADA in conjunction with other timber associations, recently produced a support statement in relation to the performance of wood cladding in a fire. The Confederation of Timber Industries (CTI) – the umbrella organisation representing the UK’s timber supply chain from forest to end of life recycling – published the statement that reads in full:

MULTIFACETED FLEXIBILITY FOR ALL TIMBER CONSTRUCTION COMPANIES

“The outcome of the UK government’s assessment last year of the use of different cladding materials in the wake of the Grenfell tragedy confirmed that timber, enhanced with flame retardant treatment where required, remains fit for purpose where the upper floor level of a building is less than 18m above ground (Building Regulations England). In all situations where Building Regulations stipulate a particular reaction to fire performance level for materials on the external face of a multi-storey residential building below this level, then those performance levels must be complied with.

Me and my Hundegger! Never change a winning team!

However, Building Regulations guidance does not always stipulate a particular reaction to fire performance for cladding and/or balconies on buildings where the upper floor level is less than 18m above ground. In such circumstances, so as to provide consistency, insurance and peace of mind against unforeseen circumstances, an independent, professional fire risk assessment which takes into account the building design, use, materials and location is essential at the project design stage. Indeed, this has been a principle embodied in the CDM Regulations for some years which has very recently been reinforced by MHCLG in a circular letter to Building Control in England & Wales.

hundegger.com

JOINERY MACHINE HUNDEGGER ROBOT-Drive

Such an assessment may demonstrate that, by means of careful design and component specification, flame retardant treatment is unnecessary in the particular circumstances. However, following recent reviews and from industry feedback on new projects, the Confederation of Timber Industries (CTI) recommend that all such timber based cladding and balcony components should be treated using a quality assured factoryapplied flame retardant to Euroclass B, unless shown not to be necessary by an appropriate risk assessment process. Timber remains an excellent material for manufacture and construction, but proper risk assessment, specification and detailing are paramount to ensuring safety whatever the build method.” www.cti-timber.org www.trada.co.uk

Compact dimensions and modular design – the ROBOT-Drive offers maximum flexibility and almost unlimited processing possibilities for bars and panels. With the ROBOT-Drive, a 6-axis unit performs all the necessary work steps on the part – and in a single run. The solution for all requirements including timber glue construction from 20 x 60 mm to 300 x 1300 mm. The ROBOT-Drive is the most recent addition to the range of Hundegger joinery machines. Hundegger UK Ltd. Daniel Blades Snetterton Park, Harling Road Snetterton, Norfolk NR16 2JU Office: +44 (0)1953 660 331 Mobile: +44 (0)7940 714 599 d.blades@hundegger.com

Innovation in timber engineering

RD_4c_93x267+3_GB_Daniel Blades.indd 1

11.06.2019 11:02:09

UK INDUSTRY NEWS IKEA & SKANSKA’S HOUSING MOVE TO THE UK WELCOMED Buying materials in large quantities enables the IKEA/Skanska marriage to benefit from economies of scale and it offers, in true Ikea style, a small selection of clean line designs which reduce upfront costs. Its one to four bedroom apartments and terraced houses are finished in white paint and plain tiles. Its Swedish incarnations all benefit from solar panels.

A plan by Swedish home décor giant IKEA and construction wizard Skanska to bring their low cost sustainable offsite housing model to the UK has been welcomed by insulation specialist Actis. The company has built 11,000 homes so far in Sweden, Norway and Finland using sustainable offsite manufacturing methods, giving more people the opportunity to own a quality, sustainable home, at a lower price than the current market value. Speaking at Housing 2019 in Manchester. BoKlok UK vice-president Henrik Johnnson stressed key factors to the success and sustainability of the future housing market are more housing choice, improved quality and increased efficiency. His aim is to create homes which suit the pockets of those on average incomes. “Modern methods of construction can deliver on all of these, which is why investments in offsite solutions have increased significantly,” he said. “BoKlok homes are built using a smart, industrialised and efficient process that produces high-quality, environmentally sensitive housing at a low price,’ he explained. BoKlok has nothing to do with ‘flat-packs’, it is about completed quality homes manufactured offsite.”

“In Sweden, our calculations show that a BoKlok multifamily house generates half the carbon emissions compared to the average of a newly produced multi-family house,” added Henrik. “We will use the same means of production for the UK market and hence it is a reasonable to think that the result would be the same in the UK. Transportation of the modules is a very small part of the total emissions. “In a world with finite resources we do as much as possible to minimise our impact on the environment, which is why we build in wood – the most climate neutral and natural building material. Building in a factory lowers our environmental impact, especially as we use timber frames. We recycle most of our leftover materials – less than 1% gets thrown away. And our carbon footprint is less than half that of normal building projects. All of this makes us more sustainable and more cost effective. “Our housing areas are relatively small with leafy areas where people can meet in a natural way. They are always close to public transport, shops and other public amenities. We help our customers live more sustainably, whether that means saving energy and water or how they can find cleaning products without any harmful chemicals. Perhaps most important of all, we don’t build any unnecessary square metres. We create smart space, not showoff space. Every square metre we don’t

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build reduces our environmental impact. Our goal is a low price with meaning. That’s something entirely different from building cheaply. “We build most of our houses inside, which reduces the risk of weather damage. We build with care to show respect for the people who will move in and we build smart using natural and environmentally friendly materials. Because we’ve perfected our process we are one of the fastest companies in the industry. No one else can build and deliver a quality home, ready to move into as fast as us. As soon as we’ve found the right piece of land we don’t waste any time. This means less disruption for local residents and fewer risks for the builders.” Actis Regional Sales Director Jemma Harris is particularly excited about the latest forward thinking offsite specialist. “We welcome initiatives aimed at addressing the housing crisis and the construction industry skills shortage while improving the environment. Here is another wonderful example of construction organisations being proactive, thinking outside the box and looking at new and innovative ways of creating the homes we need.” www.insulation-actis.com www.boklok.co.uk

T IM BE RTA L K S 06 NOVEMBER 2019 // LONDON

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UK INDUSTRY NEWS NEW ACTIS HYBRID SYSTEMS ENTER NATIONAL BIM LIBRARY Six Actis Hybrid BIM systems – three for timber frame walls and three for pitched roofs – have been created in the NBS National BIM library. These are in addition to the existing individual product files covering every thickness of insulation Hybris, vapour control layer HControl Hybrid and breather membrane BoostR Hybrid. The six new systems combine buildups, depending on the system, cladding, battens, sheathing, structural timber, air cavities, plasterboard, Hybris, BoostR Hybrid and HControl Hybrid. The wall and roof systems come in HH, HB and HY variants – shorthand for all three Hybrid products or just Hybris and BoostR Hybrid, or Hybris and HControl Hybrid. They offer a complete, ready to use build up for easy inclusion into the Revit software platform. In addition they can be downloaded in IFC format.

The arrival of the CE-marked Actis Hybrid range build ups in the virtual library should be invaluable to specifiers wanting to create highly insulated, airtight buildings which will meet the most onerous energy performance requirements. In addition to enabling 3D ‘real life’ representations of the finished project and its intervening stages, the integrated BIM system enables specifiers to anticipate errors, design issues and clashes long before they occur.

Actis has also recently invested in stateof-the-art machinery to handle huge growth in demand for Hybris. Sales of Actis’ honeycomb insulation Hybris are growing at such a rate that the company has invested in a machine which can produce the material four times faster than its predecessor. The 2,000sq m plant has been built at the company’s HQ in South West France. Actis UK and Ireland Sales Director Mark Cooper said: “Our original Hybris machine was pretty impressive, and now the growth in its popularity means we have made a significant investment into a second generation plant. Its increased manufacturing capacity will enable us to meet current and future demand. Architects, specifiers and builders choose Hybris because not only does it achieve impressive thermal performance, it is quick, clean and easy to use, produces very little waste and is light and easy to carry.”

CE-marked Hybris and its three sister products, insulating vapour control layer HControl Hybrid and insulating breather membranes, Boost R Hybrid and Boost R Hybrid Roof, have LABC and LABSS registered detail and are accepted by the LABC, Premier Guarantee and the NHBC when used in accordance with certification. The Actis Hybrid range can be accessed and downloaded from the NBS National BIM Library at: www.nationalbimlibrary.com

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NBT/SOPREMA MERGER FORGES AHEAD NBT – the UK supplier of Pavatex insulation and airtightness products – has completed the first phase of a merger with building products giant SOPREMA. A global name in the construction supply chain, SOPREMA boasts 67 manufacturing sites around the world, more than 90 subsidiary companies and more than 4000 distributors. NBT first joined the group in 2016 and the legal process of creating the new UK business has been in progress in the interim, drawing on synergies between SOPREMA and NBT while ensuring that NBT retains its clear focus on delivering sustainable, robust and cost-effective solutions for the building envelope. Andrew Mitchell from NBT/SOPREMA explains: “The integration of NBT and SOPREMA brings with it huge benefits for specifiers, procurement professionals, contractors and end-users as it enables a joined up supply chain focused on best-fit and best-practice solutions for the building envelope. For specifiers it means an integrated, expert approach to delivering a projectspecific solution, for procurement and construction professionals it means a rationalised, cost-effective supply chain and for the end user it ensures buildings that will perform better and last longer.” NBT’s Pavatex range of woodfibre insulation and airtightness tapes and membranes now sit alongside a huge array of SOPREMA solutions, including waterproofing, roofing, solar energy, insulation and acoustics. NBT has already been pioneering envelope solutions and the company will now leverage the global capabilities of SOPREMA to take this vision forward. www.natural-building.co.uk

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UK INDUSTRY NEWS 100% OF TIMBER FIRE DOORS PASS MHCLG TESTS

THE GREEN HOUSE CUTS ENERGY CONSUMPTION BY 50%

All timber fire doors which underwent fire-resistance testing by the Ministry of Housing, Communities and Local Government (MHCLG) were found to have met required standards, exceeding the minimum 30-minute burn time requirement, with one door resisting flames for as long as 59 minutes when opening away from the furnace. . This is in direct contrast to glass reinforced polymer foam filled fire doors – the type recovered from Grenfell tower, which initiated this investigation – three quarters of which failed MHCLG tests in results published earlier this year. In a written statement announcing the results of the testing from a sample of timber fire doors from 25 manufacturers, James Brokenshire, (then) Secretary of State for the MHCLG said: “I am pleased to report that all (timber fire doors) have succeeded in meeting the required 30-minute fire performance standard.” He went on to say that an expert panel had: “concluded that they do not believe there is a performance concern with timber fire doors across industry, where they are purchased directly from the manufacturer and produced to specification.” Kevin Underwood, Technical Director for the British Woodworking Federation which operates the BWF Fire Door Alliance said: “We would actively encourage those responsible for the fire safety of buildings to review the test and certification documents that support the performance of their fire doors to ensure people’s lives are not put at risk.” www.bwf.org.uk

The Green House is a state-of-theart office building in East London designed by Waugh Thistleton Architects that takes advantage of an existing concrete frame structure with timber CLT extensions. Owned and managed by The Ethical Property Company, both the client and architect have pushed the boundaries of sustainable office design creating a biophilic development that improves energy efficiency in construction and in use by 50%. This sustainable six-storey commercial property in Bethnal Green is a retrofit of a disused and derelict 1960s office block with a modern and flexible workspace for up to fifty social change organisations. The existing concrete frame was maintained to minimise waste, pollution and reduce carbon emissions that occur through demolition. A new six-storey rear extension and atrium was added to the back to create 7050m2 of office space. The additions are built from prefabricated CLT and glulam reducing the building’s carbon footprint to a fraction of a conventional new building. The central exposed CLT cantilevered staircase is the pivotal connection between the existing concrete building and the timber extension. This innovative design was made possible using resin bonded steel rods placed within the treads, with the

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half landings suspended from steel tension system. Open plan kitchens encourage active collaboration. Use of recycled carpet tiles, low energy lighting and water saving technologies contribute to reduction in VOCs, electricity and water consumption. Andrew Waugh, Director at Waugh Thistleton Architects, said: “Our commitment to championing environmentally-friendly building practices is perfectly aligned with Ethical Property’s own longstanding approach to sustainability. Creating workplaces out of CLT offers huge benefits both to the client, in terms of the cost and efficiency of the programme, and also the end users in terms of a warm and comfortable work environment.” Conrad Peberdy, Managing Director of Ethical Property, said “Since we started 20 years ago, our policy has to been to always ensure our centres are as environmentally – friendly and sustainable as possible. With The Green House project we were very lucky to have found an architect with the same values as us who has designed a wonderful space that embraces sustainability. The building halves CO2 emissions in use from the notional benchmark of 91.7 tonnes of CO2 per year to 45.8 tonnes of CO2 per year. www.waughthistleton.com

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UK INDUSTRY NEWS SÖDRA SURVEY REPORTS UK TIMBER TREND UP

A recent industry survey conducted by Södra Wood has shown a definite increase in the specification of timber as a construction material in the UK, with 63% of respondents saying they believe timber is growing in popularity. The survey generated insight from almost 350 architects, consultants, contractors and merchants. The objective was to ascertain whether the UK is beginning to recognise the merits of timber and the results were clear to see: 69% of those questioned said they already worked with timber and 68.75% of respondents felt that timber can help meet government housebuilding and sustainability targets. When asked to rank the benefits of timber in order of importance, sustainability took the lead, followed by the fact that it is a quick and efficient material to work with. Great aesthetics took third place, then versatility, cost-effectiveness and offsite capabilities.

Nigel Buckley-Ryan, Sales Director, Merchants, at Södra Wood, said: “As a timber business, we have been working hard to position the benefits of what wood can do for our construction industry - it’s really rewarding to see so many people working with timber. We believe it can help meet many sustainability and housing targets in the UK, so I’m delighted to see recognition of that. Sustainability is something that we are very passionate about here at Södra, which is why for every tree we fell, we plant another three and operate according to a tree’s natural lifecycle. It is welcoming to see that the UK construction industry is becoming more conscious of timber’s excellent sustainability credentials.” Jeremy English, Great Britain and Ireland Manufacturing Sales Director for Södra, added: “While timber’s popularity is clearly growing, there remains lots of opportunity

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for further development, especially in terms of timber’s offsite capabilities, cost and time efficiencies. The interesting thing about this survey is that it also shows that work still remains to be done to raise awareness around timber’s benefits. We’ll certainly continue to build its case and, as always, endeavour to drive the industry forward.” Jeremy English was also recently appointed to the board of the Structural Timber Association (STA) and said: “I am delighted to be on the STA board and to be a part of an organisation who shares the same values and objectives as Södra. We believe timber can help overcome many of the UK’s construction challenges, from meeting housing needs to fast and efficient delivery of buildings. We are committed to the UK timber industry and being active members of the STA helps us to live out that commitment.” www.sodra.uk

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SOLID WOOD The offsite construction process included the installation of fitted furniture and storage, before transportation of the pods from Scotland to Wiltshire to be craned into position. Great care was exercised to ensure students feel a part of the wider Dyson community and are immersed in a positive and productive living environment. The pods have large tripled glazed windows and each pod has its own front door for privacy.

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01 The Dyson Institute of Engineering and Technology enrolled its first undergraduates in September 2017 to inspire a new generation of engineers who are ‘work-ready’. Recently completed new accommodation for them is in neat CLT pods designed by WilkinsonEyre. In March 2016 the Minister of State for Universities, Science and Research and Innovation, invited inventor and entrepreneur James Dyson to take advantage of the Higher Education Research Bill to set up an engineering programme. WilkinsonEyre has been collaborating with Dyson on their Malmesbury campus for over 20 years, having originally designed the new Headquarters for Dyson there in 1992. The Dyson Institute for Engineering and Technology is a new model for apprentice-based learning that integrates a higher education campus with commercial industry, research and development. With the ambition to become the best engineering university in the world, its mission is to develop the engineering leaders of the future. Dyson’s brief was to create accommodation that would draw together fresh ideas visually, structurally and in the use of materials. The design team explored a range of materials

and modular construction options, eventually settling on a structure from cross laminated timber (CLT) panels. The 67 units are 4m x 8m and are stacked up to three pods high. The units are arranged and angled in the campus landscape to provide every student with high-quality accommodation complete with a scenic view. The project establishes a new typology in student accommodation while breaking new ground in the design and engineering of modular and prefabricated construction. The CLT accommodation pods are wrapped in a layer of super insulation and clad in anodised aluminium. Each pod has a triple-glazed face, with a dark grey Accoya frame, painted dark grey to offset the pods’ metal casing. Internally, the CLT structure has been left exposed to create warming and natural living environments and to showcase the strength of the material’s natural properties.

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The modular CLT pods were chosen to respond to the challenging site that included a raised embankment. “WilkinsonEyre wanted to demonstrate the beauty of modular construction when designed and delivered to the highest quality,” says Yasmin Al-Ani Spence, WilkinsonEyre Director. “This led the design team to explore bespoke construction methods including the design and build of cantilevered pods and providing appealing and practical access to pods at differing heights. Our latest project for Dyson has created unique student residencies with identity.” Each pod has been designed with natural ventilation while benefitting from the excellent thermal mass performance of the CLT structure. Each pod is fitted with a wide, open window creating expansive views across the campus. To create the feel of a student village each pod has its own front door. The dynamic arrangement of the pods has created a series of collective social spaces for the students to enjoy both internally and externally. Jasper Hasell, Global Estates Director at Dyson said: “The latest addition to our Malmesbury Campus, Dyson Village, is an innovative new typology for high quality student accommodation and expands the existing campus thoughtfully combining work, sports and social for employees as well as place of education and a home to our undergraduate engineers.” www.wilkinsoneyre.com www.dysoninstitute.com

IMAGES: 01. The offsite-manufactured modular CLT pods establish a new typology in student accommodation. Courtesy WilkinsonEyre

SALISBURY PLAIN

TIMBER SUCCEEDS WITH MILITARY PRECISION

01 As reported in previous issues of Structural Timber magazine, a huge MoD development scheme is currently taking place on Salisbury Plain using timber frame to house military personnel and their families. The final phase is nearing completion.

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Salisbury Plain has long been associated with the British Army. Officially designated as Salisbury Plain Training Area (SPTA), it is the largest in the UK and is used by the regular army, reserve units, cadets and NATO allies. Stretching across 94,000 acres, the Training Area is also home to military personnel and their families. As part of the Ministry of Defence’s commitment to bring back Field Army units from Germany by 2020, an extra 4,300 service personnel and their families will relocate to their new home on Salisbury Plain in 2019/2020. To accommodate the additional residents, three new housing and community schemes - Bulford, Ludgershall and Larkhill, are being built on the Plain. The £250million contract was awarded to Lovell, part of UK construction and regeneration group Morgan Sindall Group plc. The Defence Infrastructure Organisation tasked Lovell with delivering 917 homes - service families’ accommodation (SFA) – over the three sites in a little over two years. To hit the

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May 2020 deadline, speed and accuracy are crucial, therefore a form of offsite construction was a given. To manage the delivery risk, Lovell awarded the construction of the properties to two timber frame providers, Taylor Lane Timber Frame and Stewart Milne Timber Systems (SMTS). Taylor Lane was charged with completing 225 units at Bulford and SMTS, 242 units at Ludgershall. However, Larkhill is different. The Larkhill site comprises 450 units, twice the size of the other two. So Lovell made a far-reaching decision for the two competing timber frame companies to work together on the one site, collaborating on all aspects of the build – a move which has been recognised as a pioneering move for UK housebuilding. As a consolidated solution was essential for delivering the build programme, Lovell required a willingness for both parties to collaborate at every level including design.

SALISBURY PLAIN

The companies worked with six basic house types, to streamline manufacturing and build efficiencies. Taylor Lane used its 140mm timber frame system with 75mm insulation to achieve the required U-value (0.21 W/m2K). Each property is designed to have an energy performance 19% greater than Building Regulations requirements. Several engineering solutions were designed in as a result of early planning meetings between Taylor Lane and SMTS, including avoiding stepped-in roofs where the step-in level was less than 150mm. The two timber housing experts co-ordinated duct routes in floors, and eaves and verge details to ensure the same solution. Each company used its preferred joist manufacturer, but the depths were uniform. Both businesses also opted to erect the roof structures at ground level for fast-track delivery, enabling the roofs to be constructed ahead of/in conjunction with the ground and first floor frame, and minimise the risks associated with working at height. Taylor Lane started by erecting 225 plots at Bulford, in just 29 weeks. Lovell had a strict handover programme which had to be met. Taylor Lane forecast when plots would be complete to allow planning for follow-on trades. This site set the standard for Taylor Lane, in both production output and operations. With erecting teams moving between the two timber frame providers, it was an opportunity for the erectors to learn the methods associated with the two systems and the layouts of the houses and sites. Taylor Lane handed over the final frame at Bulford on 30 November 2018. Larkhill required dedicated onsite management and efficient programming. Its success has been reliant on exceptional communication. The Taylor Lane and SMTS site offices were opposite one another, with the site supervisors meeting daily to share crane plans, road closures, deliveries and delivery schedules to accommodate one other and not compromise the slew radius. Initially, both companies handed over five units per week, this accelerated to a combined 16 units per week. This could not have been achieved with traditional

02 masonry construction, the programme would have taken around five rather than two years to complete. This fasttrack, high-volume project is an industry exemplar, demonstrating the benefits of timber frame for speed, precision and efficiency. Taylor Lane celebrated the erection of its final unit at Larkhill – the last property of the contract – with a topping out ceremony on 2 August. With the final phase of the Army Basing Programme underway, military personnel have already begun the relocation to Salisbury Plain, occupying completed properties at Bulford and Ludgershall. Lovell is on track to complete the project in advance of the May 2020 deadline. “The rate of delivery achieved on our SPTA scheme is frankly incredible,” says John Leary, Major Projects Director, Lovell. “As with our earlier scheme at MoD Stafford (2014/15), we have achieved productivity that is otherwise unprecedented in UK low rise housing, i.e. 16 units per week and much credit must be attributed to certain key ingredients of our supply chain, not least our two timber frame providers. Taylor Lane and Stewart Milne Timber Systems were selected following rigorous qualitative scrutiny from a panel of the country’s leading manufacturers/installers. “Given the demands of the client’s programme, our decision to utilise OSM in the form of timber frame was instantly a given. From the onset our vison was to award one of the two smaller schemes to each of the two providers and allow their relative performance to be the route to our Larkhill decision. Both performed extremely well and

03 were equally worthy of the larger site. Ultimately the leadership of to come to terms with. However, our partners persuaded us that with careful programming and planning the site could be safely compartmentalised to share the work equally and at the same time assure us of programme adherence.

“The results speak for themselves. I would have no hesitation in working with either or both of our timber frame partners on any future scheme, having immense confidence in their willingness to collaborate openly and with integrity and ultimately to deliver on their promise.” www.taylor-lane.co.uk www.lovell.co.uk www.stewartmilnetimbersystems.com

IMAGES: 01-03. The collaborative use of timber frame is totally transforming the huge housing scheme. Courtesy Taylor Lane Timber Frame

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TIMBER TALKS

THE ADVANCEMENT OF TIMBER ARCHITECTURE The groundswell of interest in engineered timber is driven by both technological advances and concern for the environment and sustainable construction practices. It is undergoing a ‘revival’ where it is used in widespread applications delivering high-quality architecture to the realisation of cuttingedge structural engineering. Over the last decade structural timber has entered a new dimension with the development of new building systems and design strategies and one company at the forefront of innovation is Stora Enso – one of the world’s largest manufacturers of cross laminated timber (CLT). Gareth Mason, UK Business Development Manager at Stora Enso, will be presenting a case study on Ellerslie Road Development, Glasgow’s tallest CLT building. Built on the banks of the River Clyde at Yoker – just west of Glasgow – Ellerslie Road provides 42 one, two and three-bed contemporary mid-market rent apartments for Sanctuary Homes.

T I M B E RTA L K S Experts from the structural timber sector will come together on 6 November 2019 in London to address timber’s use in the construction industry as a versatile and natural material undergoing a contemporary design resurgence.

06.11.19 // LONDON

Timber Talks will shine a spotlight on the ‘best of the best’ in structural timber featuring stellar guest speakers from the 2018 Structural Timber Awards winners, highly commended and finalists. This will give the audience the chance to hear more from the project delivery teams and for them to demonstrate the best in innovation, best practice and diversity across a range of sectors. The seminar will also provide a valuable networking opportunity where guests will be able to gain insights from industry leaders who are shaping the future of the construction industry.

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Successful residential developments are not the only timber projects under the spotlight. Kelly Harrison, Associate at Heyne Tillett Steel alongside Tom Foster, Design Director at Studio RHE will be presenting a case study on The Import Building. This new destination workplace has been created as part of the wider Republic masterplan in East India Dock, Tower Hamlets. Once the project is complete, the 650,000sq ft high-quality, low-cost commercial space will transform the workplace experience and is specifically designed to appeal to the world’s fastest growing and dynamic businesses. The project is an excellent example of how the use of timber in commercial developments can provide an efficient, economical solution to an otherwise challenging brief without compromising design quality.

TIMBER TALKS lodges that are sensitively integrated on the bank of a beautiful lake. This new Center Parcs development complements the landscape and is the first accommodation to sit beside and overhang the lake at Elveden Forest. Inspired by the curved hulls of boats, the architect used arches to create the elegant shape with engineered timber the natural choice when compared to other materials.

about the £8 million building, which houses the 25 metre swimming pool and teaching area at Freeman’s School, Ashtead. This project is a brilliant example of project team collaboration, with architects Hawkins Brown, supplier Wiehag and main contractor Gilbert Ash, working together to deliver an exemplar building that has set new standards in quality and design.

Glulam and CLT technology also feature in the award-winning education project engineered by Eckersley O’Callaghan. Director Toby Ronalds will be speaking

IMAGES: 01. The Import Building. Courtesy Studio RHE 02. Freeman’s School Swimming Pool. Courtesy Hawkins Brown

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02 Another market sector featured during this seminar will be leisure where Frank Werling, Head of Technical Engineering and Design at Metsä Wood, will be presenting a case study on the new Center Parcs accommodation at Elveden Forest, which consists of three waterside

Timber Talks is taking place at the Building Centre in London on 6 November and is open to architects, engineers, clients, contractors, local authorities, housebuilders and developers. It will feature high-calibre speakers discussing the aesthetic, commercial and technical possibilities of structural timber through case studies and award-winning projects. For a full speaker line-up and to book your delegate tickets visit: www.timbertalks.co.uk Tickets can be purchased online at £95 plus VAT but Structural Timber Magazine is offering a 10% reader discount. Simply enter discount code STMAG10 when booking. Offer ends 30 September 2019.

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STA ASSURE

MMC DEFINED: MODERNISING THE CONSTRUCTION INDUSTRY Pre-manufacturing components (nonsystemised primary structure): driven/ screw piling, pre-fabricated pile caps/ ring beams, columns/shear walls/ beams, integrated columns, beams and floor slabs, staircases and preassembled roof structures (trusses/ spandrels).

01 Increasingly, factorymanufactured buildings are seen as the ideal modern construction method. The Structural Timber Association (STA) is working hard to place timber at the forefront of this building revolution. All factory operations in contemporary production environments are now controlled by quality management system such as ISO9001 or the STA’s membership and quality standards scheme – STA Assure. This ensures that the complete manufacturing process is in line with the customer’s expectation for consistent, high levels of quality. Until recently, the housebuilding industry has been slow to utilise modern methods of construction even though offsite technology allow homes to be constructed up to 30% more quickly than traditional building methods. Not only do offsite methods require fewer people onsite, helping to mitigate the skills shortage, these methods are also more efficient, reliable and sustainable.

With the Government’s presumption for the specification of offsite technology for all public sector projects together with funding support – there has been a call for definitions to be established. On behalf of the government, Mark Farmer (CEO of Cast Consultancy) has termed seven modern methods of construction definitions, one for each category of pre-manufacturing processes. The STA supports these definitions, which have been ‘futureproofed’ for key stakeholders and will be relevant for mortgage, insurance and underwriting perspectives to collect data on building/system performance and risk. OFFSITE/MMC DEFINITIONS Pre-manufacturing (3D primary structural systems): structural chassis, which may be combined with internal fit-outs, external cladding, roofing and ‘podded’ room assemblies. Pre-manufacturing (2D primary structural systems): basic framing for walls, floors, doors, stairs and roofs; enhanced consolidation of insulation and internal linings; further enhanced consolidation of insulation, linings, external cladding, roofing, doors and windows.

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Additive manufacturing (structural and non-structural): substantive structural forms/components and non-structural components. Pre-manufacturing (non-structural assemblies and sub-assemblies): volumetric podded assemblies for bathrooms, kitchens and unit M&E central equipment and panelised/linear assemblies for non-structural facades, roof assemblies/cassettes, unit M&E distribution assemblies, infrastructure M&E assemblies, floor cassettes, partition cassettes and doorsets. Traditional building product-led site labour reduction/productivity improvements: internal and external walling products, large format roofing finishes, pre-sized traditional materials and interfacing features. Process-led site labour reduction/ productivity/assurance improvements: site encapsulation measures, standardised and sacrificial temporary works, BIM connected lean delivery framework use, site worker augmentation, site worker productivity planning tools, site process robotics and drones, autonomous plant, equipment and drones and digital site verification tools. Quality Assurance and Warranty of Offsite/MMC Alongside clear offsite definitions, the government are developing a unified quality assurance scheme for assessing offsite technologies. The scheme will also act as a gateway to acceptance of the final homes for warranty, mortgage and building insurance offers.

STA ASSURE To develop unified assurance, the government have formed a ten-point checklist: • Needs to be clear on technical longevity assurance of the product, not just component plans • Needs to identify the abnormal cost of insurance-led reinstatement, checking whether repairs are capable of ‘open sourcing’ • Needs to be associated with a ‘mainstream’ warranty • Needs to recognise the importance of valuer advice • Needs a single, unified, assurance platform in the UK • Needs clearer definitions of MMC • Needs to be holistic in warranty terms • Needs product and process assurance to be better linked to people via skills and competency certification • Needs a single open source repository of how housing stock is built • Needs better education and awareness of latest technologies.

The government have also created an independently curated hub for offsiterelated data collection to improve product knowledge, transparency and stakeholder education. They will build stakeholder confidence through robust and unified technical assurance processes for offsite and improve links to insurance and financial products. The aim is to enable demand-led change that underpins increased capacity to build homes in a more productive way to a higher quality. To encourage sector growth, the government will take the following actions to further develop offsite: • •

Stimulate offsite growth through the Accelerated Construction Programme for offsite to encourage investors into the sector and enable current suppliers to expand Support a joint working group with lenders, valuers and the industry to ensure that mortgages are readily available across tested construction methods. This will include encouraging industry use to develop a stronger set of core data to measure the use and performance of different technologies

• Align the planning system with offsite developments • Work with local areas to deliver growth, job opportunities and faster build times • Consider opportunities with the Home Building Fund for offsite firms to access growth funding. The government recognise that offsite projects should use the same finance as traditionally constructed projects. With clear definitions in place, MMC will modernise the industry at scale, maximising education, confidence building and collaboration. For more information on the Offsite/ MMC definitions and STA Assure visit: www.structuraltimber.co.uk IMAGES: 01. Timber systems are at the centre of offsite delivery Courtesy CCG OSM

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MODULAR DESIGN GUIDE

CHANGING HOUSING PERCEPTIONS

01 Swan Housing Association is leading the way on modular housing and recently launched their own Modular Design Guide based on their learning from launching their own timber volumetric modular housing factory in Essex.

A housing association with a difference, Swan is focused on achieving the biggest social impact possible and creating balanced neighbourhoods by specialising in social, affordable and private sale homes. Swan’s focus is ensuring as many people as possible have ‘somewhere to feel at home’, which is why modular housing and the use of offsite manufacturing is of such interest to them, particularly with secured development pipeline of over 8,000 homes, the majority of which are being built by their in-house developer, NU living including homes for private sale. Every penny of Swan’s profit is reinvested to create further funds to deliver more affordable housing, regenerate neighbourhoods in Essex and London and provide services to their residents. To date, £65million has been reinvested and by 2027 they aim

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to generate over £250million of profit to help them make the maximum impact on affordable home supply. Innovation is at the heart of Swan’s approach and they have invested over £3million into their state-of-the-art factory in Basildon, Essex, where they use cross laminated timber (CLT) to build modular homes. Swan, which opened its own offsite modular factory in 2017, has already delivered precisionengineered homes to its Beechwood development in Basildon, Essex, and is now manufacturing and delivering approximately six modules per week to its Watts Grove development in East London. Watts Grove will deliver 65 one, twoand three-bedroom shared ownership apartments in Bow, Tower Hamlets. Construction work began in early 2018 and it is expected that these homes, which were shortlisted in the Inside Housing Development Awards for ‘Best Approach to Modular’, will be the UK’s first mid-rise CLT modular homes. Watts Grove has been instrumental in the research and development of

MODULAR DESIGN GUIDE

Committee on Housing, Communities and Local Government and the newly appointed Minister for Construction, Andrew Stephenson MP. In his first official visit as Minister, Mr Stephenson took a tour of the factory to learn more about Swan’s precision engineered modular housing, where he saw firsthand the scale of Swan’s operation, which recently moved into double shifts, employing over 60 local workers.

03 the modular guide. Based on Swan’s ‘NU build’ modular system, the guide aims to give the design teams of new homes an understanding of the interrelationship between the consultants, the client and the factory. Earlier this year, Swan, along with award winning architects Waugh Thistleton, launched their ‘Modular Design Guide’, setting out considerations for designing modular housing. The guide is not a pattern book, but instead provides the tools for the designer to develop their own unique project, whilst thinking about how each module is made, transported and assembled at every stage of the design development. “Swan is truly committed to delivering innovation,” says Geoff Pearce, Swan’s Executive Director of Regeneration and Development. “Having opened our own offsite modular factory in 2017, we are convinced that this method will enable us to deliver high-quality homes that people will want to live in, at the same time building local and national expertise in manufacturing and supporting the UK modular industry. This guide, we hope, will encourage others to consider modular, whilst enabling high-quality homes to be built, quicker, more sustainably and at a lower cost.” Working closely with Ramboll and Waugh Thistleton Architects – specialists in designing in engineered timber and offsite solutions, the Guide,

which took two years to develop is hoped to encourage more designers, organisations and developers to look at the possibility of delivering homes via offsite manufacturing. “The NU build Guide is the culmination of two years of collaborative work with Swan developing their modular system,” says Andrew Waugh, Founding Partner, Waugh Thistleton Architects. “Speed of delivery, efficiency of production and waste reduction are at the heart of this book, demonstrating how the construction industry can modernise to meet the 21st century demands for quality as well as responding to the urgent climate emergency we face.” Paul Williamson, Managing Director of NU Build adds: “As the UK moves towards more factory built homes we wanted to provide a Guide which prompts the design team to ask the early questions that need to be asked, something which all teams within the process could look at for guidance.” So together with the use of LEAN processes, the latest cutting machine technology, BIM and a focus on standardisation of process not product, Swan are able to manufacture high quality, stylish new homes that buyers really want to live in. Swan is at the forefront of modular housing and it’s not afraid to share its success and knowledge with the industry. This year alone, Swan has welcomed over 500 guests to their factory including The Commons Select

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“The use of offsite modular manufacturing is helping us harness new methods of working,” said Andrew Stephenson. “Delivering on the Government’s Construction Sector Deal to transform the sector’s productivity through innovative technologies and a more highly skilled workforce. The methods being deployed at Swan’s modular housing factory are a testament to the Government’s modern Industrial Strategy, creating a business environment equipped for the challenges and opportunities of new technologies and ways of doing business.” For 25 years Swan Housing’s commitment has remained the same – to deliver quality affordable homes and create thriving communities, somewhere to call home, for those who need it most – today, tomorrow and for generations to come. www.nubuild.co.uk www.nuliving.co.uk www.swan.org.uk IMAGES: 01-02. The Modular Design Guide will encourage more designers, organisations and developers to look at the possibility of delivering homes via offsite manufacturing 03. Minister for Construction, Andrew Stephenson MP toured the Swan factory to learn more about the precision engineered modular approach

Designing the Future with Sustainable Timber Ask your suppliers for PEFC-certified wood products

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HOUSING An important part of the success of the Climate Innovation District is that we quickly realised there was no point making something world class in a manufacturing facility, to then compromise quality and efficiency by applying traditional construction techniques on site. Instead we established a multi-skilled fit out teams and in-house erection team. To date, the Citu Works factory in Leeds has already built the components for the first 28 of these homes, upscaling to build 750 homes per year. By building that many Citu Homes it saves 66,000 tonnes of CO2 pa – the equivalent of taking 14,000 combustible engine cars off the road annually. Extrapolate that out – if the government’s target of building 300,000 new homes per annum was met by building Citu Homes – over 26 million tonnes of CO2 emissions, 7% of the UK’s annual emissions would be prevented.

DOING MORE BETTER – FASTER

01 Citu is successfully and rapidly building a carbon negative housing development in Leeds – the first family homes to be constructed in the city centre for more than 90 years. Jonathan Wilson, Development Director, Citu explains more about offsite design and why timber is so important. Buildings currently account for two thirds of CO2 emissions in the UK and it takes 65 tonnes of CO2 to build a typical newbuild house. Trying to meet the Government’s housing target of 300,000 new homes annually in masonry houses will cause 19 million tonnes of CO2 emissions pa. And unlike other sectors building emissions are worryingly static. With embodied carbon – CO2 emitted from the build – there’s been no progress at all, because buildings tend to use the same carbon intensive materials. We are also seeing

02 larger housebuilders not only slow in the uptake but, in some cases, actively lobbying against targets. In sharp contrast, the Citu House is manufactured by 10 operatives in a 15,000 sq ft factory which consists of some of the world leading timber frame and posi-joist machinery. The factory is set up with two process lines, one for the timber framing and one for the floor cassettes. Keeping up with demand at the start three years ago was a particular challenge as the whole process and product was a new concept. At the end of Year 1 Citu were comfortably keeping up with demand and planned to double capacity in Year 2 and further double in Year 3.

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Timber homes last hundreds of years keeping CO2 out of the atmosphere but that’s not forever. Disposing of them conventionally the CO2 will end up back in the atmosphere, this is where Bio-Energy with Carbon Capture and Storage (BECCS) comes in. This allows decommissioned timber buildings to be burned, creating energy – the carbon stored within them captured and pumped underground. BECCS is currently seen in a few pilot projects globally but this kind of technology is already effectively being baked into existing climate agreements. A recent Journal Nature study calculated that the social cost of carbon is approximately £325 per tonne i.e. an average tonne of CO2 emits £325 worth of damage to the global economy via damage from storms, wildfires, droughts etc. What if the price of building materials included the social cost of carbon? Build in a social cost of carbon per tonne – timber still is the cheapest construction material. www.citu.co.uk

IMAGES: 01. Climate Innovation District, Leeds 02. Factory-manufactured timber components provide a highly sustainable building method

PROJECT CLICKDESIGN

PERFORMANCE BASED SPECIFICATION OF WOOD

01 Fundamental to the continued growth of wood in construction is reliable information on the performance of wood in different end-use environments. Ed Suttie, Director at BRE outlines how Project CLICKdesign is set to kick-start a knowledge revolution. Wood as a material for construction is hugely versatile and offers considerable opportunity to help tackle the climate emergency through afforestation and locking carbon into our buildings through the products we specify. Improvements to accessing material characteristics is essential. Often this knowledge is locked up in standards, expertsâ&#x20AC;&#x2122; heads, databases and previous research projects. Making

it accessible would help get the right product specified for the enduse application against a desired performance, from structures to cladding, windows to landscaping uses. A European consortium is working on a new ForestValue research project called CLICKdesign to do just this by delivering fingertip knowledge to enable service-life performance specification of wood. Project CLICKdesign started in March 2019 and will run for three years. BRE are leading a consortium of eight European organisations delivering the core research components of building physics, wood science, BIM, service life modelling, entomology and wood based construction products. Alongside a diverse pan-European Industry Group of 19 members from wood protection, architecture, specification, users will pilot and test the modelled components of performance of wood in use to develop an open source tool. Industry group members in the UK include Architype, the Wood Protection Association, Accoya and George Barnsdale windows.

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Awareness of the cultural legacy of wood in construction around us are constant reminders of the enduring possibility of wood if knowledge is applied, including knowledge of species and material qualities, knowledge of design details and construction skills, knowledge of local conditions, climatic and other challenges. This knowledge is fragmented, localised and in some cases difficult to analyse and use especially by non-wood experts. The solution through CLICKdesign is to put this knowledge at the fingertips of the specifier, so more can meet their ambitions to deliver low carbon construction, through performancebased design with wood. Service-life planning and performance classification are core issues in construction underpinning product specification and use. The absence of durability performance-based specification for wood is currently a limit of opportunity. Concrete, steel and polymeric sectors deliver software to architects and students enabling performance based specification and consistent teaching of design best practice. This does not happen comprehensively in Europe for wood, though specific initiatives do exist e.g. UK Structural Timber Association guidance and the German Carpenter Associationâ&#x20AC;&#x2122;s Guideline on Building Facades, Terrace decking and Balconies. This gap and the fact that technical specifications for performance are increasingly required for use in Building Information Modelling (BIM) and life cycle analysis (LCA) service-life data has driven the development of project CLICKdesign.

PROJECT CLICKDESIGN

02 Project CLICKdesign key objectives are to: • Provide the scientific understanding of how the inherent properties of a wood and in-service environmental exposure are related to the response (performance) linked to defined limit states for the product • Understand and bring together the models and performance databases associated with decay and integrity, aesthetic function, insect and termite performance to create a holistic pan European approach • Validate a set of models using real-case studies (buildings, structures) from across Europe in collaboration with expert witness and engineering bureaus • Inspire new wood-based design solutions and specifications and support a new generation of ‘timber savvy’ designers by taking an important step towards digitalisation of knowledge and specification • Deliver a software tool into pilot usage following the open source standard (IFS, ISC) for BIM readiness via consideration of information template, databook entry and plug-ins. The established specification of wood durability is not performance-based. Service-life is referred to as unquantified and an ambiguous way using terms such as ‘reasonable working life’ or ‘satisfactory performance’. Timber engineers utilising Eurocode 5 find the ineffectual language doesn’t stand scrutiny and is of little value. For performance modelling of wood products biological agents need to be considered with particular attention for mould, decay fungi, termites and other insects. First attempts prepared using various dosimeter models were made in previous European research projects. Good progress has been made during recent years in service-life planning and performance prediction of wood-

03 based components and structures, but as repeatedly became evident, the complexity of performance is still not captured in these processes and it remains ‘on the shelf’ rather than in use. The foundation of previous work has been gathered and reviewed as first priority of the project. In addition, project CLICKdesign includes for the first time a focus on: • Robust time forecasting of visual aesthetic changes on wood surfaces e.g. exterior cladding • Development of a European termite and insect performance measure • Accommodation of climate change driven changes to exposure dose e.g. the distribution and locations of wood destroying organisms which may, for example, expand termite risk zones in Europe. Key to the success for CLICKdesign is that the tool finds application across Europe’s rich diversity of geographic, climatic and cultural regions. This will be possible by using a structured approach that enables direct localisation for the user. The team are cognisant of fostering the different traditions for the use of wood, differences in expectations on service-life and warranties, differences in cultural aspects towards product maintenance and providing language accessibility.

The specification of performance of wood products is complex and requires use of multiple platforms of data, empirical evidence, experience, standards and national recommendations. CLICKdesign over the next three years will provide a tool that has embedded within it the decades of excellent research, the complexity of the standards specification systems and the variation of approach due to tradition, materials and culture across Europe. The tool will be accessible to professional users and will be refined with industry to ensure relevancy and accelerate uptake and use. This will increase market confidence with users for selecting wood as a reliable product and enhance an optimised performance of timber in the built environment. We are hopeful it will also inspire new wood and woodbased products using the tool and create business opportunities for the forest-based industries to innovate. For more information on Project CLICKdesign contact: ed.suttie@bregroup.com or visit: www.bregroup.com/services/ research/clickdesign

IMAGES: 01. The Enterprise Centre at the UEA, Norwich contains a variety of end use applications of wood that will be used as a case study for the tool 02. Timber in construction is subjected to different local climatic conditions and performance demands 03. CLICKdesign project partners from UK, Finland, Sweden, Slovenia, France, Germany and Norway gather at BRE for the launch of the project

EUROPEAN COLLABORATION Project CLICKdesign is supported under the umbrella of ERA-NET Cofund ForestValue by the Ministry of Education, Science and Sport (MIZS) – Slovenia, The Ministry of the Environment (YM) – Finland, The Forestry Commissioners (FC) – UK, Research Council of Norway (RCN) – Norway, The French Environment & Energy Management Agency (ADEME) and The French National Research Agency (ANR) – France, The Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (FORMAS), Swedish Energy Agency (SWEA), Swedish Governmental Agency for Innovation Systems (Vinnova) – Sweden, Federal Ministry of Food and Agriculture (BMEL) and Agency for Renewable Resources (FNR) – Germany. ForestValue has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement N° 773324.

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BM TRADA

THINK QUICK & THINK QUALITY

01 One of the things that contractors and builders must not lose sight of in the bid for speed is quality. Lewis Taylor, Timber Frame Consultant at BM TRADA, discusses the importance of build quality, detailing and sole plates. With the increasing popularity of timber frame, thanks to its speed of build and sustainability credentials, we’re seeing a rise in calls about build quality. With this in mind, we have been working closely with architects, housebuilders and housing associations, providing training courses, reviewing detail drawings and carrying out regular on-site inspections to minimise defects and ensure quality. Many developers with a tradition of building in masonry construction are now turning to timber frame to achieve better energy performance and enjoy the benefits of speed of construction.

We often work with main contractors to help them ensure a good standard of construction is achieved and to help them minimise call backs and costs associated with possible defects. This saves them money in the long run, and delivers buildings that offer better performance and happier occupiers who enjoy living in them. A large portion of our work is for housing associations, hotel chains, care home providers and other building owners who have a longterm vested interest in the performance and durability of their buildings. As they are normally responsible for ongoing maintenance and repair works, it is important they are satisfied that the design and construction meets their requirements and that build quality has been maintained. There are a number of key areas – such as structural design, differential movement and thermal performance – which require careful design and construction to ensure quality and compliance with regulations. The detailing of timber frame buildings evolves as new products come to market, regulations change, or building

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forms change to suit architectural style, so keeping up to speed with detailing is of great importance. Also, what an architect draws is not always what a builder constructs. For example, a change of floor joist type from a typical bottom bearing joist to a top hung metal web joist can have implications for plasterboard edge support and fire resistance, vapour control lapping and sealing, routing of services, structural design and manufacture of the timber frame walls, air barrier detailing around floor zones and locating cavity barriers – not to mention the order of work for tasks on site. While adding in extra checks along the way may seem prohibitive in terms of speed of build – especially when time is key – a focus on build quality can in fact further speed up the process. With an expert pair of eyes overlooking the build, corrective action can be taken immediately if there are any concerns, which saves the time of needing to return to an area and fix it at a later date. This in turn leads to savings, as it not only limits the additional costs involved in going back to the project to correct any issues, but it’s also possible to identify efficient construction methods and order of work to reduce costs along the way. Furthermore, by focusing on the construction detailing, performance and compliance can also be improved. Inspections from the outset allow us to suggest best practice details for performance, so that the finished building can be designed to exceed current regulations, while materials and building systems can be assessed against standards at every stage of the process. One of the most important tasks in constructing timber frame buildings is getting off the ground on a level foundation/sole plate. Dimensional tolerances that ground workers are

BM TRADA

sectional area as the studs. In effect, they are mini studs transferring the load to the foundations.

used to in other forms of construction are often too great for timber frame, so it is important for all parties involved to understand the tolerances required. Sole plate fixings serve two purposes: • •

For effective point load transfer, the cross-sectional area of the shims should match that of the point load, but some timber frame erectors will only install sufficient shims to level the sole plate, not to support the building. It is sensible to clarify responsibility for undertaking this work to prevent later problems with movement of the frame and sole plate distortion. Adequate support must be installed, not ignored. Sole plates must also be correctly located to the timber frame manufacturer’s drawing. If a foundation is not within recommended tolerances, an overhanging sole plate reduces the area available for transferring the load of the building. If set back, there remains a small ledge that can collect water, mortar droppings and other debris and may lead to a blocked cavity, as well as opening up a route for moisture to penetrate structural timber elements if it is not addressed.

To locate the plates accurately during construction so they can be used as an accurate jig for setting out the superstructure To transfer vertical and horizontal loads to the foundations once the building is completed.

Timber frame manufacturers and their erection crews are all too aware of the problems of slab tolerance and are likely to have, within their contract, clauses ensuring responsibility rests with the main contractor. Only when a slab is within recommended tolerances or when a structural engineer gives additional guidance, should construction start on the timber frame. Any areas that are out of level must be identified and corrected, normally using shims. They should be installed below the DPC underneath every stud in the wall panels and be the same cross-

02 With speed of build back in the frame, timber is of course the most obvious and best solution for builders, but to make the build as efficient as it can be, the devil is most definitely in the detail. A focus on quality throughout the build process not only leads to more efficient construction and a better end product, but also happier clients. www.bmtrada.com

IMAGES: 01. One of the most important tasks in constructing timber frame buildings is getting off the ground on a level foundation/sole plate 02. The detailing of timber frame buildings evolves as new products come to market

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2019 STRUCTURAL TIMBER AWARDS

CELEBRATE YOUR SUCCESS

With an exceptional shortlist whittled down from a record number of entries, the timber industry is looking forward to October’s Structural Timber Awards to celebrate the best of timber design, construction and engineering.

With 16 categories, nearly 250 entrants and over 70 companies shortlisted, the Structural Timber Awards have not only grown in popularity but also in stature. Now in their fifth year, over 550 national business leaders and high-profile decision makers from the construction industry will gather in Birmingham to celebrate the great, the good and the simply outstanding. The judging panel spent many hours poring over the projects, products and people entered for this year’s Awards. To create a shortlist for each category was incredibly difficult with some exceptional entries submitted, it demonstrates the architectural strengths, engineering capabilities and versatility of this renewable and natural material. It also goes to prove how much talent and competitive spirit there is in the timber industry.

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Timber is wonderfully adaptable and well-suited to a range of construction projects across all sectors and the Awards work hard to celebrate the diverse ways that timber contributes to the UK built environment. As the UK housebuilding crisis reveals, the pressure to deliver higher numbers of quality homes is unrelenting – but the current explosion of interest in offsite manufacturing techniques and demands for a more sustainable way of living, verify that timber is the perfect material to resolve many construction problems. The importance of affordable, highquality housing projects is putting the entire construction industry under the spotlight across the board. To put this into perspective, The Institute of Fiscal Studies recently concluded that 40% of young adults cannot afford to buy one

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2019 STRUCTURAL TIMBER AWARDS Of course, timber’s benefits stretch far beyond structural use. The Structural Timber Awards will showcase many examples of architects and building designers taking inspiration from the natural world. Timber is now widely accepted to deliver ‘wellness’ for building occupants in the shape of cleaner, quieter and natural surroundings. Exposure to timber and its natural biophilic properties can help reduce blood pressure and stress levels and create a better living and working environment for building occupants – hugely important in the healthcare and education sectors. The Structural Timber Awards is a celebration of innovation, best practice and expertise in timber technology. Over the next few pages you can see the 2019 shortlist in all its glory. Who will the eventual winners be? Find out on 9 October 2019 at the National Conference Centre, Birmingham. For more information on the event and last few opportunities to attend visit: www.structuraltimberawards.co.uk

of the lowest-priced homes in their local area and the number of 25-34-year old house owners has dropped by 20% over the last 20 years. Many answers to these problems will be highlighted at the Structural Timber Awards. Timber is a renewable material that plays a critical role within the wider circular economy and has the lowest embodied carbon of any mainstream construction material. Allied to this, advances in digital design is consistently improving the quality and performance of timber systems and enabling manufacturers to produce high-specification buildings that are taking the engineering capabilities of timber to new heights – literally in some cases – and to extraordinary quality. As Dave Reay, Professor of Carbon Management and Education, University of Edinburgh has stated in relation to the housing market: “Limited land, an expanding human population, and all wrapped in a suffocating blanket of

climate emergency. Earth has never felt smaller.” A sentiment held by many and it’s important to remember that the government’s aim is not just to generate more affordable homes but to change the mind-set behind the way in which they are built and the quality they contain. The Committee on Climate Change (CCC) notes that 18% of UK carbon emissions are currently released from buildings – predominantly homes – with an extra 15% of emissions generated by the electricity consumed in these structures. With 15-28% of UK homes already using timber frame construction and capturing over one million tonnes of carbon each year, many architects and building designers are calling for more timber to be used as a primary construction material. Indeed, all sectors can benefit from the carbon sequestration benefits of wood – especially in standalone structural systems or in hybrid approaches.

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MASTER OF MIMICRY ALISTAIR MCGOWAN TO HOST STRUCTURAL TIMBER AWARDS This year Alistair McGowan will be master of proceedings, ensuring that the celebrations will not only be inspirational but also highly entertaining. Alistair has been hailed by The Times as a ‘voice virtuoso.’ His repertoire includes a gallery of politicians, pop stars and sportsmen – like a romp through the news, gossip columns and back page headlines!

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2019 STRUCTURAL TIMBER AWARDS

SOCIAL HOUSING PROJECT OF THE YEAR

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ENGINEER OF THE YEAR

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To view the full shortlist or to book your table for 09 October 2019, visit: www.structuraltimberawards.co.uk or email: amy.pryce@radar-communications.co.uk

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HOUSING of this type of project by designing dual aspect flats, with living spaces oriented to the south and south west and an access gallery to the north side of the building. “Most of our work happens in this highly complex urban environment – complex in terms of policy, in terms of the urban fabric, sustainability and the environment. All of these parameters together set up something where innovation really shines,” says partner Chris Bryant.

PREPARE FOR THE FUTURE

01 Earlier in the summer, three architecture practices came together with Graphisoft UK, the company behind the BIM software solution, ARCHICAD, for the premiere of ‘Habitation: Reinventing Housing for the Urban Age’. The UK is already at crisis point in delivering enough homes to meet demand, so what will happen as the population rises from 67 million to a predicted 72 million by 2041? How will urban areas that are already struggling to provide new and affordable housing cope under additional pressure and how will these homes be delivered? The film looks at issues such as urban density, affordable homes and sustainability, and outlines how each architecture practice has offered a solution to these challenges. Waugh Thistleton – a specialist in cross-laminated timber (CLT) – shared its Watts Grove project, an affordable modular scheme of 65 homes in east London, designed for Swan Housing. “One of the reasons Swan has looked towards offsite manufacture is because they want to control their supply chain,” says Kieran Walker, Associate at Waugh Thistleton. “The important thing to understand about offsite modular construction, is that it’s really about repeatable processes and customisable

products. In this way, we can get homes much quicker and more cost-effectively and onto more difficult sites. Many people associate timber purely for its sustainability benefits. But for us, although that’s always a starting point and the ethos for the practice, we really believe in the material because of the way in which prefabrication offers so many other benefits over the traditional means of construction. Habitation also addresses ‘urban density’. Alma-nac’s 2.3 metre-wide Slim House – a three-bed property built into an old south London stable passageway, which is narrower than a tube carriage – is an example of the firm’s approach. Alma-nac has now applied this approach to Paxton House, an officeto-residential conversion in Croydon, south London. Although initially conceived as a build-to-rent scheme, some tenants have since purchased their properties. Bryant’s team has managed to avoid many of the pitfalls

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At Brentford Lock West, Mae Architects created an innovative residential scheme of 557 homes on brownfield land. “A lot of our housing need can be delivered on repurposed sites,” said Alex Ely, principal at Mae. However, this does not mean designing and delivering identikit housing devoid of character. Instead, Mae Architects designed the buildings to fit in and reflect the qualities of the surrounding area, while still delivering a dense residential scheme. This means not only creating a mix of dwelling types, such as townhouses and flats, but also integrating architectural features such as garden walls, front gardens and gable ends. The project has indeed delivered a mix of housing types while also addressing the need for family housing in outer London. “We tried to innovate on the project [by developing] a new typology of villas connected by townhouses,” says Alex Ely, architect at Mae. “The villa plan allows us to create a lot of dual aspect apartments with generous outdoor space and well-lit, generous internal spaces.” The success of each of these schemes, in such a densely populated city, offers lessons and guidance for those grappling to deliver housing in major urban areas around the world. They powerfully demonstrate the creativity and ingenuity that is prevalent throughout our remarkable sector, showing that it is possible not just to build houses, but also to create homes for every human being on our planet. To watch the film in full visit: www.graphisoft.com or on YouTube at: www.youtube.com/ watch?v=al0JvDqK49E IMAGES: 01. Brentford Lock West by Mae Architects. Courtesy Rory Gardiner

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01 Located within the historic campus of Cranleigh School in Surrey, the new van Hasselt Centre was built using a hybrid structure combining steel and wood. Kerto® LVL (laminated veneer lumber) was used in floor and roof elements to stabilise the steel frame.

Cranleigh has its roots in a community school launched in 1865. As part of the school’s ongoing masterplan development project, two disused squash court buildings were redeveloped and expanded. A new building of 2,525sq m covering the area was constructed around a steel frame with stabilising Kerto LVL wood elements for the floor and roof. Architects Allies & Morrison were given the task of designing the building. The design team convinced the school of the feasibility of the steel-timber concept and Kerto LVL Ripa elements. All the co-ordination and decision making thus took place at the design stage rather than on the construction site. This sped up the work onsite.

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“Timber is used extensively in this project and is inherent in its design concept,” says Jack Stephenson from the architects Allies & Morrison. “The structural timber is exposed to view throughout, providing maintenance-free soffits that give character and warmth to the building’s spaces. The Ripa technology allows the ribs and deck to be designed as one module, which increases the span by approximately 40%. The prefabricated timber panels were chosen not only for visual reasons but also for their fast installation and lightness.” The project was co-ordinated using BIM, Revit and IFC files. This improved the co-ordination between the architect, engineer, steel manufacturer, element

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manufacturer and construction site, minimising mistakes and problems onsite. The van Hasselt Centre’s structure consists of a steel frame superstructure, with Kerto LVL elements creating the floor and roof. The Kerto LVL Ripa roof and floor elements used in the Cranleigh School project were manufactured by Belgian company Dupac. The Kerto LVL Ripa elements design technology is an innovation by Metsä Wood that allows wide spans without supporting partition walls or pillars. It is based on Metsä Wood’s Kerto LVL wooden panels, which feature outstanding dimensional stability. Based on Kerto LVL S-beam and Kerto LVL Q-panel loadbearing components and structural gluing, it enables very long spans for elements of up to 20m. Floor panels were constructed using 37mm thick Kerto LVL Q-panels as deck and 73 x 358mm Kerto LVL S-beams as ribs. The roof panels were constructed with 25 mm Q-panels and 45x300 mm S-beams. The acoustician required a concrete screed on top of the timber panels. Kerto LVL Ripa was the only structure capable of easy load transfer within the maximum depth. The elements were chosen because they enabled long-span, lightweight, shallow depth and high capacity. The Kerto LVL elements give stability to the steel frame. As the steelwork had rough tolerances, elements and details were designed to allow for bigger steel tolerances. To allow varying levels of steel while still retaining the same floor level, a top-hung connection with bearing ribs on the steel was used.

04 The top-hung detail was specially designed for the project, with glued elements and screw reinforcement. Using Kerto LVL in the roof elements allowed big openings, bringing light to the rooms. The Kerto LVL elements were screwed to the pre-drilled steel structure and to each other. Because most of the details were left exposed, it was essential that connectors were partly hidden or completely invisible. This was achieved through careful design, cooperation with the architect and the use of tailored detailing. All services in the wooden elements were pre-drilled to limit work onsite and minimise damage. A tophung connection with bearing ribs on the steel allowed varying levels of steel while maintaining the floor level.  The Kerto LVL floor elements were designed to withstand 30 minutes of fire, with an additional 30 minutes achieved through the application of a fire retardant coating, bringing the fire resistance class to R60. The timber elements of the roof structure in the corridor areas had factory flame protection, with additional flame treatment applied on site.

Kerto LVL floor elements were prefabricated and transported to the site in the correct order for fast installation. The elements were entirely prefabricated, a decision that allowed work to be done simultaneously onsite and offsite, thereby accelerating the installation phase. Careful logistics planning – down to the order in which the elements were loaded on trucks to speed up installation – ensured just-on-time deliveries, minimising the need to store material onsite while enabling uninterrupted installation. The properties of the Kerto LVL elements as reinforcements in a steel frame structure, combined with fast and easy installation, allow fast completion of even demanding structures. www.metsawood.co.uk

IMAGES: 01-03. The new van Hasselt Centre at Cranleigh School Courtesy Guildford Photographer 04. Kerto® LVL has transformed the hybrid structure

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BUILDING PERFORMANCE

DELIVERING TOMORROW’S QUALITY TODAY failures in performance. Good quality homes should be designed around five basic principles: • Be suitably designed to reflect orientation whilst minimising overheating • Have a well-designed high performance thermal envelope • Be designed to reduce and ideally eliminate thermal bridges • Be airtight in order to reduce unwanted infiltration • Achieve good indoor air quality through the provision of well designed ventilation. The key to successfully delivering these principles is to understand that they are all interconnected, in that a weakness in any one principle will have a detrimental impact on performance.

01 David Russell, Director at Carbon Futures, outlines how offsite construction can deliver far-reaching thermal improvements for new UK housing.

A recent report by the Committee on Climate Change asked if the UK’s housing was fit for the future. The report listed five key priorities for government action: performance and compliance, skills gap, retrofitting existing homes, building new homes and financing and funding. Offsite construction has the potential to deliver on all these key priorities, however I would suggest that the most important of them all is performance. With plans for 1.5 million new homes by 2022, it’s vital that we learn from past mistakes, to ensure that we deliver quality as well as quantity. If we fail to provide both, then any short-term success in terms of numbers has the potential to be blighted by long-term

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To be as efficient as possible, designers must first endeavor to orient dwellings as efficiently as possible – ideally facing north/south if the site constraints permit. Window openings should be designed to suit orientation, with more glazing on the southern elevation to maximise solar gain and less glazing on the north elevation to limit heat loss. It is also important not to size windows appropriately as a balance must be struck between solar gain and summer overheating. Overhangs should be designed into window openings to facilitate shading in the summer months, whilst permitting solar gain during the winter months, when the sun is lower in the sky, as this will reduce the heating and cooling demand, which is vital in order to moderate indoor temperatures for occupant comfort. We must also endeavor to eliminate thermal bridging, which is an area of a building construction that has a significantly higher heat transfer than the surrounding materials. Thermal

BUILDING PERFORMANCE

bridging can account for up to 20-30% of total building heat loss, which is significant. Any heated building should be designed and constructed to limit heat loss through thermal bridging. Whilst repeating thermal bridges are accounted for in U-value calculations, a separate calculation is required to assess non-repeating thermal bridges at all the external junctions within a building. As homes become better insulated, the importance of thermal bridging increases exponentially. Failure to address thermal bridging can increasing the risk of surface condensation and mould growth, whilst also contributing towards occupant discomfort due to the presence of localised cold spots. Infiltration or air leakage can account for up to 50% of heat loss in modern homes significantly adding to the amount of energy required to keep a home warm and comfortable, resulting in higher carbon emissions. Air leakage allows expensive heated air to escape from a home, essentially wasting valuable energy, whilst also adding to occupant discomfort caused by drafts. Poor airtightness can also increase the amount of pollutants within a building such as particulates, pollen and volatile organic compounds (VOCs) that can all have a detrimental effect on our health and wellbeing, contributing towards the high instances of asthma within the UK. Airtightness and ventilation are inextricably linked. If you spend time and money designing a home to be very airtight in order to limit unwanted infiltration, it is vital that you provided suitably designed ventilation to maintain good indoor air quality. Typical decentralised and centralised mechanical extract systems (without heat recovery) in homes suck warm moist air out of kitchens and bathrooms and rely on replacement air being drawn in via trickle vents and uncontrolled infiltration. This method results in a significant amount of lost energy as the extract fans draw heat out of the home and replace it with colder and potentially polluted air from outside. In energy efficient airtight homes with airtightness less than 3m³/hm² at 50 Pascals, mechanical ventilation with heat recovery (MVHR) is required in order to control the

02 indoor air quality whilst also retaining heat within the home for longer. MVHR units are fitted with filters to remove pollutants, improving indoor air quality.

waste. It is also important to note that up to 15% of products delivered to construction sites are sent directly to landfill without being used.

With its energy-efficient and sustainable credentials, timber frame has many advantages over other forms of construction, when it comes to building homes. The material itself can be sustainably grown and procured from certified sources and has much lower embodied energy than masonry, or steel frame construction. It can also be easily prefabricated in factorycontrolled conditions and be erected on site significantly faster than masonry construction. Erection is also less reliant on dry weather conditions. Timber frame can also typically achieve better thermal performance, with a thinner wall construction. The disadvantages are that it can be more susceptible to condensation, rot/infestation and the risk of fire, however these issues can easily be overcome with good design and specification. Whilst the cost of a pre-designed timber frame can be higher than other forms of construction, there is generally greater cost certainty as it can be designed and manufactured offsite prior to starting on site.

Whether we choose to use modular construction or closed-panel construction, the key is to do as much as possible offsite in factory-controlled conditions, where stage-and-gate quality controls can be implemented. The quality control measures and working environment are much more likely to help close the ‘performance gap’ and make achieving a highperformance thermal envelope, with high levels of airtightness, more readily deliverable.

Offsite construction can help deliver good quality, low-carbon homes that meet the five key principles of good housing. Building in factory-controlled conditions helps to improve quality and performance, whilst significantly reducing waste, when compared against traditional building practices i.e. building outdoors on cold, wet, muddy building sites. This is particularly important when you consider that the UK construction and demolition industry is responsible for over 30% of landfill

The design and construction industries have an obligation to deliver on the governments key priorities. Whichever way we choose to construct homes, it is vital that we follow the basic principles in order to reduce energy demand, maintain occupant comfort and reduce waste. If we are to be truly sustainable, then we must also get out of the habit of constructing poor quality homes, which are demolished 30-50 years later, to start the process all over again ad infinitum. This means that we must invest today for the long haul, by building good quality homes designed around the key performance principles. We know what is required, now is the time to deliver. www.carbonfutures.co.uk

IMAGES: 01. A thermal model through the base of a separating wall i.e. at ground floor/foundation level 02. Offsite construction helps deliver good quality, low-carbon homes.

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BS4016 and NHBC requirements for vapour permeable walling underlays. Fireshield® is installed in the same manner as traditional breather membranes using mechanical fixings. Applications include both commercial and residential buildings including apartments and student accommodation, as well as rainscreen cladding and applications over 18m high. Due to the nature of the surface coating, Fireshield® is a more rigid membrane compared to traditional breather membranes. Care should be taken when folding and detailing as creases and folds may remain in the fabric. While effort must be made to keep cracks and creases in the membrane surface to a minimum, these should not adversely affect the intumescent properties of the membrane. If large areas of the membrane suffer loss of surface coating, these should be patched or replaced. In the UK, given the mild weather conditions, a maximum exposure period of 12 months uncovered should be adhered to for Fireshield®. In the winter months, or in cases of more extreme weather, this period should be reduced.

KEY BENEFITS • Unique composition actively reacts to prevent fire taking hold • Vapour permeable walling underlay for use either directly onto sheathing or insulation • Class B, s1-d0 but performs differently to other similar class products • Complies with BS5250, BS4016 and NHBC requirements for vapour permeable walling underlays • Ideal for use in rainscreen façade construction • Suitable for applications over 18m high.

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IMAGES: 01. Fireshield® has a unique intumescent composition that actively reacts to prevent fire taking hold

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Reduces risk of damage on site

Accurate routing of any bespoke design

Individually wrapped for protection

High quality & cost effective finishing

Saves labour costs & time on site

Call us now to discuss your project: 01925 821 199 E: sales@tradefabricationsystems.co.uk W: www.tradefabricationsystems.co.uk Trade Fabrication Systems Ltd, Chesford Park House, 18 Chesford Grange, Woolston, Warrington, WA1 4RQ

SEMINAR // 06 NOVEMBER 2019 // LONDON

T I M B E R TALK S

BOOK YOUR PLACE NOW – READER DISCOUNT: Tickets can be purchased online at £95 plus VAT but Structural Timber Magazine is offering a 10% READER DISCOUNT. Simply enter discount code STMAG10 when booking. Offer ends 30 September 2019.

WWW.TIMBERTALKS.CO.UK

OFFSITE EXPO

STRUCTURAL TIMBER CPD’S AT

OFFSITE EXPO 2019

Offsite structural timber will be well represented at this year’s inaugural Offsite Expo, with a dedicated theatre constructed from CLT plus a number of leading companies exhibiting timber frame, solid wood and SIPS. Supported by industry partners TRADA and the Structural Timber Association, the event will also run dedicated seminars on structural timber in the Masterclasses and international Summit across two days on 24 and 25 September. Sessions include:

FFSITE

EXP

24.09.19 SESSION 1

SUMMIT 24.09.19 UK & US TERRITORIES SESSION

CHAIR - Andrew Carpenter Chief Executive, Structural Timber Association

CHAIR - Mark Farmer Chief Executive, Cast

10.30-10.50

Jephtha Schaffner Project Manager & Engineer, Blumer-Lehmann

10.50-11.10

Pete Blunt Managing Director, Innovare Systems

11.10-11.30

Simon Horn Technical Manager, Stewart Milne Timber Systems

11.00-11.30

11.30-11.45

Q&A SESSION

SESSION 6 CHAIR - Rupert Scott Membership & Marketing Manager, TRADA 10.30-10.50

Frank Werling Head of Technical, Engineering and Design, METSA Wood

10.50-11.10

Mark Jenkins Tek Product Manager, Kingspan Tek

11.10-11.30

Stuart Scott Chief Commercial Officer, Cygnum Building Offsite

11.30-11.45

Q&A SESSION

25.09.19 EUROPE TERRITORY SESSION

25.09.19

Alex Goodfellow Group Managing Director, Stewart Milne Timber Systems & Oliver Novakovic Technical and Innovation Director, Barratt Developments AIMCH Principles and the link to SMTS Offsite Investments

STRUCTURALTIMBERMAGAZINE.CO.UK

11.30-12.00

Patrick Schwalm Project Manager, RENGGLI International Case studies on a variety of offsite timber construction projects throughout Europe

All Masterclasses and the Offsite Summit are FREE to attend – register online at www.offsite-expo.co.uk

With over 20 years experience supplying our engineered timber products, we have earned a reputation for service, quality and excellence in all areas.

Timber Frame SIP'S Feature Oak Glulam

Call us on 01743 891922 or Email: enquiries@ltf.uk.com www.lowfieldtimberframes.co.uk

OFFSITE EXPO

LAST CHANCE TO SECURE YOUR PLACE AT OFFSITE EXPO 2019 Set to be the offsite technology event of the year, thousands of tickets have already been reserved for the inaugural Offsite Expo, which will be taking place at the Ricoh Arena near Coventry on 24-25 September 2019. With just a few spaces left, there is still time to make a last-minute booking to secure your exhibition space or visitor ticket and avoid missing out on the offsite development opportunities that are set to change the future of construction.

Offsite Expo is curated by leading industry experts who understand the urgent need for a dedicated event that showcases international offsite best practice, maximises knowledge transfer and facilitates collaboration opportunities to increase offsite technology uptake and improve construction industry productivity.

The extensive Offsite Masterclass programme and International Summit will showcase many of the structural timber projects that have been making the headlines. This is your opportunity to hear direct from those who are challenging outmoded construction methods to deliver outstanding projects with minimal environmental impact.

Offsite Timber Technology The packed exhibition hall will host over 100 companies across the offsite materials portfolio and supply chain together with smart and innovative technologies.

Masterclass Theatre 1 will be constructed from cross laminated timber (CLT) by Offsite and Structural Timber Award Winners B&K Structures. As the UKâ&#x20AC;&#x2122;s leading sustainable frame contractor, B&K Structures specialise in the design, manufacture and delivery of offsite hybrid structures.

Structural timber designers, manufacturers and engineers will be out in force, showcasing pioneering projects that have harnessed the numerous benefits of timber technology. Offsite Expo recognises the importance of high-quality projects and will feature timber systems that are not only the fastest and cleanest of the offsite materials portfolio but also have the lowest embodied carbon of any building systems.

EXPLORE: Offsite Masterclasses With 100 confirmed eminent speakers, delegates can gain insights and learn from the best. Meet experts offering in-depth analysis and technical know-how in an extensive range of CPD-Accredited Offsite Masterclasses all free of charge.

EXPECT: International Innovation Get to grips with the latest international offsite methods and smart digital technologies â&#x20AC;&#x201C; the Offsite Summit provides a dynamic and interactive experience focusing on international offsite best practice. Knowledge sharing is a prime objective for the Summit, with the potential to identify collaboration opportunities. Additionally, you will have access to Ask the Offsite Expert consultation sessions, full-scale feature builds and much more. Reserve one of the final FREE tickets at www.offsite-expo.co.uk/book EXPO: Get Involved If you are a manufacturer or supplier, why not consider an exhibition space at Offsite Expo? You will gain access to over 3,000 attending construction professionals and have the exclusive opportunity to meet over 100 top Buyers and Specifiers in the Offsite Connect Buyers Forum. The fully inclusive exhibitor packages are designed to take the hassle away from exhibiting, and there is a range of options to suit all budgets and resource. Every major review of the construction industry has in some way recommended a move towards offsite construction, and this offsite technology showcase is destined to become the pivotal event in providing direct access to this rapidly expanding and fast-moving supply chain sector.

To exhibit, email: julie.williams@radar-communications.co.uk or call 01743 290042

STRUCTURALTIMBERMAGAZINE.CO.UK

TENMAT WIN THE 2019 QUEEN’S AWARD FOR INNOVATION FOR VENTILATED FIRE BARRIERS Firestopping for External Façade / Wall Cavities

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www.TENMAT.com

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Maintains air gap to allow ventilation in timber cavities

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Expands in a fire situation to provide compartmentalisation

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Tested within a vast range of construction types including Timber and Masonry

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Protect ad Offsite Expo 190mm x 127mm (Offsite)_Protect ad Offsite Expo 190mm x 127mm (Offsite) 03/07/2019 10:57 Page 1

3 IS THE MAGIC NUMBER A new innovation in timber frame construction is now upon us. Combining Protect’s 3 reflective, insulating membranes in a cavity wall build can save costs on insulation and retain low U-values without impacting on the overall footprint. Ideal for offsite manufacture, this low emissivity solution is the magic formula for both residential and commercial projects.

Protect VC Foil Ultra air and vapour control layer

100mm PIR insulation board Protect TF InterFoil breather membrane

Protect TF200 Thermo breather membrane

Visit www.protectmembranes.com/magicnumber for more information or e-mail technical@protectmembranes.com for free U-value calculations to show the benefits of this membrane system.

A sister company to Glidevale and a division of Building Product Design Ltd.

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 PLATFORMS TAKING PLACE IN 2019:

DATE

EVENT

VENUE

WEBSITE

24-25 Sept

Offsite Expo

Ricoh Arena, Coventry

www.offsite-expo.co.uk

FFSITE

NEW FOR 2019 - OFFSITE EXPO brings together those who are driving change – the event will play host to the leading UK and international suppliers showcasing a broad spectrum of panelised, pod and modular solutions. Exhibiting companies will also have the exclusive opportunity to participate in the Offsite Buyers Forum - a dynamic environment facilitating meetings with leading architects, contractors, specifiers and purchasing managers.

EXP

RICOH ARENA - COVENTRY CONSTRUCTION

TECHNOLOGY

INNOVATION

09 October

Structural Timber Awards

www.structuraltimberawards.co.uk

NCC, Birmingham

As a major event in the construction calendar, the Awards will sell-out tickets to 600 national business leaders and high-profile decision makers from the construction industry. The event presents a fantastic opportunity for hosts to entertain key clients and celebrate the best of the structural timber industry. 22 October

Modular Matters

www.modularmatters.co.uk

NCC, Birmingham

A conference and exhibition focusing on the latest developments, innovations and investments in the volumetric modular offsite sector which will engage with industry pioneers from within the offsite supply-chain, leading designers, specifiers, engineers and ground-breaking clients. 06 November

Timber Talks

T I M B E R TA L K S

Shining a spotlight on the ‘best of the best’ in structural timber featuring stellar guest speakers from our 2018 Structural Timber Awards. This seminar will give the audience the chance to hear more from the project delivery teams about the projects which demonstrate the best in innovation, best practice and diversity across a range of sectors.

21 November

Construction Productivity Conference

Building Centre, London

De Vere, Canary Wharf

www.timber-talks.co.uk

www.constructionproductivity.co.uk

The ‘must-attend’ conference and exhibition if you are looking to address inefficiencies and poor productivity within the construction sector via upskilling, use of AV/VR technology, training and new technology methods of construction – such as offsite manufacturing methods.

YOUR PREFERRED PARTNER FOR WINDOWS AND DOORS Sidey has developed quality partnerships with leading players in the new build sector throughout the UK, with a wealth of experience in catering for the needs of all types of house builder and architect. Our dedicated team is available to help you with all your requirements. They can assist with the design process and offer advice on building regulations, NHBC requirements, U-values and provide ongoing support.

VISIT THE UK TIMBER INDUSTRY’S FREE CPD PORTAL FOR ARCHITECTS AND DESIGNERS

BUILDING WITH WOOD

Timber frame CLT Engineered timber Roofing, joists and flooring

WOOD IN INTERIORS

 FOCUS ON CLADDING  INTRODUCTION TO WINDOWS

Panelling Flooring (Fire) Doors Stairs Mouldings Species Inspiration

 DECK DESIGN & INSTALLATION  COATINGS & PRESERVATIVES

Wood Campus CPD courses are accredited either by RIBA or BIID and are free to access when and where you want. Dip into them for information on a specific topic, or complete the full course. You don’t need to pre-register. On successful completion of the course and assessment, you will be asked for your email so we can send you a CPD certificate. Wood Campus is a Swedish Wood initiative, working with the UK timber industry and associations.

PROCURING SUSTAINABLE TIMBER

Forest legality Certification Legal and UK Govt requirements Specifying sustainable timber

WWW. WOODCAMPUS .CO.UK /RIBA-COURSES-2/

The next generation of insulations by Pavatex To insure you have the right specification and technical support; Natural Building Technologies

Contact NBT T 01844 338338 E info@natural-building.co.uk www.natural-building.co.uk w

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