SPRING 2021 | £4.95
STRUCTURAL TIMBER The latest in structural timber building design and technologies STRUCTURALTIMBERMAGAZINE.CO.UK
MEDITE SMARTPLY
SHOW-STOPPING TIMBER AT THE CENTRAL BANK OF IRELAND
P24
ST Awards Roundtable
Expert discussion with some of the 2020 award winners on the many opportunities ahead for timber technology.
P28
David Hopkins
More on market dynamics, post-Brexit availability of timber and where business is heading in 2021.
P46
Circular Economy
As the ultimate renewable material where does timber fit in the world of reduce, reuse and recycle?
DESIGN
TECHNOLOGY
SUSTAINABILITY
INTERVIEWS
NEWS
ANALYSIS
CASE STUDIES
Let's talk about the wood house effect The cities of the future are growing – fast-paced and as sustainable as possible. Construction times are up to 70% faster, with net-zero carbon emissions and improved thermal insulation and natural air quality. With digital tools, BIM integration and a variety of engineered mass timber elements, our building solutions will have you well prepared. For the tender, and the future. Innovative and sustainable. We call this the wood house effect. storaenso.com/woodhouseeffect
WELCOME Welcome to the latest issue of Structural Timber Magazine. Although being another edition put together against the backdrop of the Coronavirus pandemic, as we went to press the forecast is far more positive for both personal and business ambitions.
FOLLOW US ON TWITTER UNDER: twitter.com/STMagUK ADVERTISING ENQUIRIES PLEASE CONTACT: STUART MAUNDER // T: 01743 290050 E: stuart.maunder@radar-communications.co.uk BACK ISSUES VISIT: www.structuraltimbermagazine.co.uk SUBSCRIPTIONS VISIT: www.structuraltimbermagazine.co.uk FRONT COVER: MEDITE SMARTPLY PRINTED ON: PEFC 16-33-576 paper stock by Buxton Press
PEFC Certified This product is from sustainably managed forests and controlled sources PEFC/16-33-576
www.pefc.co.uk
PUBLISHER: Radar Communications Ltd, 101 Longden Road, Shrewsbury, Shropshire, SY3 9PS T: 01743 290001 | www.radar-communications.co.uk
TM
THE BUILDING TECHNOLOGY COMMUNICATION SPECIALISTS
©Radar Communications Ltd. RELATED EVENTS: www.structuraltimber.co.uk/events www.timbertalks.co.uk www.structuraltimberawards.co.uk www.offsite-expo.co.uk DISCLAIMER: The content of Structural Timber Magazine does not necessarily reflect the views of the editor or publishers and are the views of its contributors and advertisers. The digital edition may include hyperlinks to third-party content, advertising, or websites, provided for the sake of convenience and interest. The publishers accept no legal responsibility for loss arising from information in this publication and do not endorse any advertising or products available from external sources. No part of this publication may be reproduced or stored in a retrieval system without the written consent of the publishers. All rights reserved.
Alongside the economic pressures brought on by the pandemic, UK trade continues to come to terms fully with post-Brexit complications. We have a significant year of change ahead and TTF’s David Hopkins, puts some of those changes into perspective, to discuss how market dynamics will continue to affect the availability of construction timber products in 2021. We live in a world where demand for low carbon construction and timber materials has never been higher but as David points out, while timber supplies are likely to remain restricted for some time, the “magnitude of price changes” is almost impossible to forecast. An increasingly popular phrase doing the rounds is ‘eco-efficient’ as opposed to ‘sustainable’. Whether this is some clever semantics or means something different I’m not entirely sure? But the pressure on those operating in the built environment – not just the timber sector – to reduce waste and use materials in a more resourceful way is paramount. Issues surrounding long term value, quality and safety are more and more a part of our everyday living and working spaces – which for many over the last 12 months has been roughly the same thing.
Details are still thin on the ground but a new national ‘construction products regulator’ will ensure some of these concepts are scrutinised more carefully than ever before. The concepts behind the realisation of net zero targets, energy efficiency and the circular economy are all under the spotlight this issue. As Charlie Law explains in more detail, the scope for timber product manufacturers to move to a circular economy business model has never been greater or easier. But this will require a change in the way products are marketed to the construction industry, as well as clients accepting a fresher business model. Inside, several of our contributors tackle how best to reduce global carbon emissions to achieve the impending 2030 and 2050 carbon targets. Essentially, it will be a tough task, but what is for certain is that the increased use of timber will play a major part. Many thanks to all our contributors, advertisers and supporters.
Gary Ramsay | Consultant Editor E: gary.ramsay@structuraltimbermagazine.co.uk
PRODUCTION ADVERTISING & PR
Stuart Maunder
01743 290050
stuart.maunder@radar-communications.co.uk
CIRCULATION
Emma Vaughan
01743 290040
emma.vaughan@radar-communications.co.uk
PRODUCTION
Catherine Bodley
01743 290001
design@structuraltimbermagazine.co.uk
ACCOUNTS
Debra Brooks
01743 290016
debra.brooks@structuraltimbermagazine.co.uk
• 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:
www.cstodd.co.uk Tel: 01252 792088
Certificate Number 860 ISO 9001
Email: office@cstodd.co.uk
CONTENTS
THISISSUE... P6
P32 DELIVERING LARGE-SCALE LOW-CARBON BUILDINGS
Sitting on the banks of the River Liffey, the Central Bank of Ireland is one of Ireland’s most iconic new buildings and was recently renovated into a show-stopping demonstration of what can be done with a range of timber products.
P34 TIMBER AS A CARBON STORE
Christian Dimbleby, Associate, Architype, explains how timber is increasingly being used in education buildings to create low-carbon and healthy spaces for staff and students plus what do we mean by net zero carbon buildings?
COVER STORY - MEDITE SMARTPLY
The reduction in global carbon emissions and achieving the 2030 and 2050 carbon targets won’t be easy but the wider use of timber will help immeasurably, Callum Hill, Consultant at JCH Industrial Ecology Ltd explains why.
P42 TIMBER TRAILBLAZER As 2021 started, the multi-award winning Hope Rise development on Chalks Road in St. George, Bristol welcomed its new residents. This revolutionary affordable housing solution uses timber volumetric technology to great effect.
P08
P24
A quick round-up of some recent news stories from the timber and construction sectors that you may have missed including: CCG launches its Net Zero Home, Green Unit provide ecofriendly wellbeing pods for the NHS and the UK’s built environment students are asked to design a neighbourhood of the future for Sunderland.
Earlier this year, the delayed Structural Timber Awards 2020 took place online instead of in its usual buzzing, physical environment. With an incredible array of projects, people and products rewarded, a few of the winners took some time out to discuss in more detail the many opportunities ahead for timber technology.
UK INDUSTRY NEWS
ST AWARDS ROUNDTABLE
P28
A SIGNIFICANT YEAR OF CHANGE David Hopkins, CEO of the Timber Trade Federation, discusses how market dynamics – changed beyond recognition by factors related to the pandemic and Brexit – will continue to exert pressure on availability of construction timber products in 2021.
Automatic crosscut saws
P44 ADVANCED MMC & TIMBER AIMCH, the innovation consortium set up to transform the housebuilding sector, has published its second-year progress report showing encouraging results for the sector.
P46 MAXIMISING OUR NATURAL RESOURCES Timber is the ultimate renewable material, but where does it fit in to the circular economy? Charlie Law, Managing Director, Sustainable Construction Solutions, shows how the timber industry could embrace a system to make more of its available resources.
P50 SOWING THE SEEDS OF SUCCESS Helen Hewitt, CEO of the BWF has high hopes for the future, as the Spring Budget may signal a promising year for the woodworking and joinery sector.
production costs reduced by up to
5-15%
less wood used
Sole UK & Ireland Distributors tel: +44 (0)115 986 5201 www.daltonswadkin.com www.daltonswadkin.com
Sole UK & Ireland Distributors tel: +44 (0)115 986 5201
50%
COVER STORY MEDITE SMARTPLY
OUTSTANDING FOR A REASON
01 Sitting on the banks of the River Liffey, the Central Bank of Ireland is one of Ireland’s most iconic new buildings and was recently renovated into a showstopping demonstration of what can be done with a range of timber products. After sitting unfinished for years, the Central Bank of Ireland has been revamped with a new lease of life and is now Ireland’s first ever BREEAM Outstanding rated building, setting an example of progressive construction that thinks about the future.
6
w
Architects Henry J Lyons achieved this by designing the large sweeping interiors to be as user friendly as possible for the Bank’s staff, by specifying acoustic wood panels from Woodfit Acoustics, made from MEDITE PREMIER FR. This MDF panel from MEDITE SMARTPLY is flame retardant for safe use in public buildings and is produced using FSC® certified timber, from sustainably managed forests in Ireland – all the essentials to make this board suitable for the Bank’s new interior. In doing this, the building is reaffirmed as a symbol of renewal, recovery and wellbeing, both economically and by offering these elements to those who use it as their daily workplace. The modern interior is conducive to teamwork and collaboration through use of natural light, safe, natural materials and acoustic performance.
STRUCTURALTIMBERMAGAZINE.CO.UK
Supplied by Noyeks, Woodfit provided the custom-made acoustic systems and non-acoustic panelling throughout, using veneered MEDITE PREMIER FR, variously finished for use in different areas. Woodfit has over 40 years’ experience in providing specialist acoustic wood panelling and custom joinery, serving clients worldwide with turnkey wooden interior fit-out solutions. The finished panels range from ebonised slat ceilings and slat walls, custom whitewashed perforated panelling which extends seven storeys high, and perforated oak ceiling tiles throughout the work areas. “The human experience was considered first and foremost in this project,” says Fergal Costello, Marketing Manager at Woodfit Acoustics. “Acoustics are extremely important in a big open building such as this one, to reduce reverberation while not restricting air circulation.
COVER STORY MEDITE SMARTPLY “It’s important to us and our clients that we are always environmentally responsible. We feel a strong responsibility to be able to meet the need for acoustic panels made from sustainably produced materials. Working with MDF in particular, as it’s made from timber thinnings, ensures there is less timber wastage, and allows us in the timber industry to be a lot more efficient and environmentally friendly at the same time.” The BREEAM environmental building standard is one of the world’s leading sustainability assessment methods for construction. Awarding credits for use of FSC® certified building products, it recognises and reflects the value in higher performing products and projects across the built environment lifecycle. Rebecca Goldsmith, Product Marketing Executive at MEDITE SMARTPLY explained: “With responsible management, timber is a 100% renewable natural resource. BREEAM encourages us to use timber responsibly, and to create environments that are safe and healthy for occupants, in a way that will contribute to the maintenance of the natural world. The Central Bank of Ireland building’s renovation is a stunning example of this, in its safety-conscious application of FR, that happens to also be extremely beautiful.” It was also essential that the material chosen for the panels was flame retardant. Fergal explained: “We have been a long-time customer of MEDITE SMARTPLY for the reason that their products are trustworthy and high quality. As MEDITE PREMIER FR was developed specifically for use in fire rated applications, it was a must for an extremely high specification project such as this one.” MEDITE PREMIER FR is produced in both Euroclass B and C. CARB2 compliant, it also has a smooth finish and can be made in a range of sizes and thicknesses, giving it the versatility to suit numerous applications from hotel foyers, offices, public libraries, schools and other public buildings. It’s suitable for use as a wall lining and in ceiling applications and has been certified for use in fire resistant partition systems. “MEDITE PREMIER FR is very dense, yet cuts extremely cleanly,” finished Fergal. “The sign of a high-quality board.”
02
03 Now, joiners, fit-out contractors, furniture makers, or anyone with an interest in MDF for creating new, innovative or bespoke installations can join MEDITE SMARTPLY’s new members-only community. After joining, members can upload photos of their best projects that use any MEDITE MDF product to be in with the chance to win exclusive prizes from the monthly prize draw, including a power tool bundle in March from internationally renowned brand Milwaukee. The chances to win will continue monthly for all those who upload photos of their MEDITE MDF projects. The most celebrated projects will be in with a chance of winning every 30 days, while those who join will even get an exclusive gift just for doing so. MEDITE MDF helps you to realise every idea, every moment of inspiration, everything you’ve thought about creating but couldn’t find the right material to help realise your dream. Specialist products in the range are
w
04 made with no added formaldehyde, while others are certified CARB2 compliant, making the whole range perfect for even sensitive applications. This not only makes it safer to work with, but also contributes to a healthier overall building. Discover the range of MEDITE MDF and join the community at: www.meditemakesitreal.com Discover more about MEDITE PREMIER FR at: https://mdfosb.com/en/products/ medite-premier-fr For more information visit: www.woodfitacoustics.com www.henryjlyons.com
IMAGES: 01-04. The Central Bank of Ireland has been revamped and is now Ireland’s first ever BREEAM Outstanding rated building
STRUCTURALTIMBERMAGAZINE.CO.UK
7
UK INDUSTRY NEWS STUDENTS INVITED TO DEFINE FUTURE LIVING
Built environment students from Universities across the UK are being invited to design a home and neighbourhood of the future. Riverside Sunderland redefining the city: transforming a spectacular site into a unique, carbon neutral urban quarter – an extraordinary place to live, work and play. Working in teams, students from different built environment disciplines will share their vision of what urban living in this amazing place will look like in the future. The Ministry of Building Innovation and Education (MOBIE), Sunderland City Council and the Timber and Research Development Association’s (TRADA) University Engagement Programme, with industry sponsor the Confederation of Timber Industries (CTI), are excited to launch this innovative Urban Living Design Competition for built environment students and recent graduates from across the UK’s universities. Current students from all built environment courses at UK universities, along with 2020
8
w
graduates are invited to participate in the interdisciplinary team challenge. Top entrants will be awarded cash prizes. The schemes must be carbon neutral, creatively employing sustainable building materials and construction methods, be energy efficient, as well as technologically smart, focusing on the health and wellbeing of people, the community and our planet. The homes and community must be adaptable to meet the needs of living and working now and in the future. Designed and engineered to be manufactured locally using offsite construction with the main material focus and specification of timber and hybrid systems. Launching the challenge, George Clarke said: “A well-designed home can enhance the way we live and promote good health and well-being. Students never fail to amaze me with their imagination, talent and passion when it comes to home. We are asking built environment students from Universities across the UK to design a home and neighbourhood of the future to transform a spectacular site in Sunderland, my wonderful home city, into a unique,
STRUCTURALTIMBERMAGAZINE.CO.UK
carbon neutral urban quarter. This is an amazing opportunity and challenge and I’m thrilled to be a part of the team with MOBIE, Sunderland City Council and TRADA’s University Engagement Programme who are making this happen.” Participants will increase their understanding of the Climate Challenge, routes to carbon neutral and net zero homes, sustainable forestry and timber products, offsite and modern methods of construction, lifecycle assessments (LCA) and carbon calculation tools, interdisciplinary design teams, awardwinning timber homes, built and theoretical, the benefits of using timber and where caution is advised, and essential resources. The competition opened on 1 February and runs for four months, closing Friday 28 May 2021. Further details of the Riverside Sunderland University Design Challenge (RSUDC21) can be found at: www.cti-timber.org, www.mobie.org.uk www.trada.co.uk
CLADDING THAT MAKES A STATEMENT
Photography © Karl Harrison Landscapes
The Naturally Perfect® Factory Finish for the perfect modern dwelling. Just because it’s black doesn’t mean it has to be charred. Sansin Precision Coat provides a stunning charcoal finish to this beautiful home clad in Accoya® real timber cladding. Warrantied for up to 10 years, Precision Coat factory finishes deliver the colour, durability and performance that architects and builders can count on.
FEATURED IN THE JAMES LATHAM FINISH LINE CLADDING COLLECTION
sansinfactoryfinish.com sansin.co.uk
UK INDUSTRY NEWS SO MODULAR PUTS INVESTMENT IN PASSIVHAUS STANDARDS INTO PRACTICE
Timber frame construction specialist SO Modular is reaping the rewards of an investment it has made into Passivhaus. The Neath-based company has made a significant investment in training all the employees in its fitting teams to educate them around the importance of airtightness and Passivhaus standards. The training was carried out by specialist design and manufacturing engineer, Verity Moorhouse, who SO Modular is working with as part of a Knowledge Transfer Partnership (KTN), a Welsh Government initiative designed to help companies innovate by matching the skills and expertise of individuals in higher education with companies. The initiative also represented an important landmark in its journey to establish a formal training academy at its headquarters, the former Metal Box Factory, in partnership with Neath Port Talbot College and Cardiff Metropolitan University. It is the company’s objective to create a cutting-edge training academy that will lead the way in teaching many types of modern construction techniques.
10
w
SO Modular is putting the new skillsets of its team to good use on a number of important projects including two exciting projects with Lloyd & Gravell that will embrace Passivhaus standards. One is a new 270-place, English-medium primary school with 30-place nursery and up to 23 full-time places for Early Years provision, is being constructed adjacent to the current Ysgol y Castell in Kidwelly. The current facility will be demolished on completion of the new build to accommodate a MUGA sports field and car parking area. SO Modular is also working on the Ysgol Gorslas project, a new £6.8million project that will create a new 210 pupil capacity school building on land located behind Gorslas Community Park. The scheme will provide space to accommodate nursery provision and facilities which can be shared by the community such as a large hall, school field and a multi-use games area. It is hoped the new school building can still be completed by Spring 2022. Both schools will be built to a BREEAM Excellent, and Passivhaus standards.
STRUCTURALTIMBERMAGAZINE.CO.UK
For both schools, SO Modular will build and install a timber frame structure including all steel and glulam required for the buildings as well as installing insulation to Passivhaus standards. Charlotte Hale, Operations Director, SO Modular, said: “Our aim is to inspire future generations to believe in producing a quality product and protecting our environment. These are two fantastic projects to be working on. It is always great to be creating buildings that will play a vital role in educating and inspiring future generations. Evermore so when working with a partner such as Lloyd and Gravell who are such a remarkable contractor to work with. We are also delighted to be able to apply Passivhaus standards to these builds. We have invested in training our staff in these standards and we look forward to putting that investment into practice.” www.somodular.co.uk
UK INDUSTRY NEWS CUTTING EDGE INVESTMENT
HUNDEGGER TURBO-Drive
FOR TAYLOR LANE
THE SUPERCHARGED TIMBER COMPONENT CUTTING
Taylor Lane Timber Frame has invested in a new fully automated cutting machine from Hundegger, the TURBO-Drive II (TD II), designed to cut roof truss components and engineered wood products. The new linear saw will improve efficiency in the company’s dedicated truss and joist factory, reducing cutting times for entire floor kits by around 50%, with reduced labour and manual handling. With the addition of optional extras, the machine also transforms into a fully automated woodworking centre with drilling and milling capabilities. Built-in software combines with fast and precise cutting technology to improve timber yields, optimising cuts to reduce wastage. Synchronisation with Taylor Lane’s internal drawing office and real-time performance reports boost accuracy and productivity while the history log and error notifications help minimise downtime and aid diagnostics via remote access. Jon Lane of Taylor Lane Timber Frame comments: “We believe that despite the challenges affecting the building industry, now is the time to invest and develop our capability and services. We have been fortunate to complete several large and prestigious contracts in recent years, each with individual requirements and targets. To meet these demands we strengthened our proposition, developing new and innovative solutions including our Therma Line 115 Closed Panel System. The new TD II allows us to extend our offering further still, for example, cutting holes in floor joists for duct runs and milling and routing for glulam structures. Overall, this investment enables us to keep pace with ever-increasing demands for more elements of housebuilding to be completed offsite.” This is the second TD II commissioned by the Hereford-based timber frame specialist. “The second installation shows the complete flexibility of the Hundegger TURBO-Drive machine,” says Chris Osborne representing Hundegger in the UK comments. “The clear benefits are the improved handling of long and heavy materials, better recovery, accuracy, and significant increase in ‘safe’ cutting capacity.” www.taylor-lane.co.uk
Me and my Hundegger! Never change a winning team!
Cutting Machine TURBO-Drive
hundegger.com
The most versatile truss and frame component cutting machine in the UK market • • •
• •
Impressive 450 x 160 mm cutting capacity Cutting timber dimensions in 5 axis Excellent for the high production of roofing trusses,and timber framing Seamlessly links to all the main CAD software suppliers In built Board-Stretcher Yields more and waste less timber
•
Fast, accurate, flexible and affordable
•
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
UK INDUSTRY NEWS CSIC ENCOURAGES CONSTRUCTION TO DIVEIN TO EQUALITY
Construction Scotland Innovation Centre (CSIC) has launched a new initiative to promote diversity and inclusion across the construction sector, with targeted support for the industry’s multitude of SMEs. Through the DIveIN training and development programme, CSIC will give businesses the tools and skills they need – depending on what stage they are at – to establish or enhance their diversity and inclusion offering to staff.
BOKLOK UK AND ABRI TEAM UP
BoKlok UK and Abri are delighted to announce its new partnership, which will see them working collaboratively to provide over 750 modular homes over the next five years. Through this partnership, the two companies will share their knowledge and placemaking expertise to accelerate the speed of which homes are built, ensuring more people have access to quality and affordable homes across the south of England including: Bristol, Bath, Somerset, Portsmouth and Southampton.
12
w
The 12-month programme has been developed in partnership with Equate Scotland – who has previously worked with organisations such as Balfour Beattie, Morrison Construction, CALA Homes and Historic Environment Scotland. With SMEs accounting for around 95% of Scotland’s construction industry, the programme has been specifically tailored to provide them with the advice and guidance to implement real change. While COVID-19 has shifted priorities towards industry recovery, the DIveIN programme will support and encourage businesses to promote diversity and inclusion, ensuring that it remains an important topic for 2021 against the backdrop of Brexit and the challenges of COVID-related restrictions. A series of 12 workshops, discussion forums and virtual events will focus on raising awareness and sharing best practice from organisations large and small, including any cross-over with academia, with participants receiving a certificate on completion of the programme. The programme will also welcome input from other industries and encourage participation from all organisations working in the built environment.
Abri has an ambitious programme to deliver at least 10,000 new quality homes over the next 10 years, through a variety of models. Working with BoKlok, who can increase pace and predictability of delivery, will be a key contributor to this aim, whilst supporting BoKlok’s vision to provide low cost quality homes that are energy efficient and encourage open spaces and thriving communities. The new homes will span a range of tenures to offer choice and meet a diverse range of needs as well as featuring sustainable build processes to meet energy efficiency standards and help reduce running costs. The partnership between the two organisations will help to increase the supply of modular homes as they work together on land and planning matters. Graeme Culliton, BoKlok UK Managing Director and Country Manager (pictured) said: “Modern Methods of Construction (MMC) are really starting to be seen as a significant contributor to the UK housing landscape and we are delighted that by partnering with Abri we are fulfilling our
STRUCTURALTIMBERMAGAZINE.CO.UK
Douglas Morrison, CSIC’s Director of Operations and Future Skills, said: “Diversity and inclusion should be viewed as an opportunity for the construction industry, rather than a challenge. Building a diverse workforce can only be viewed as a positive and encouraging new skills and talent to enter the sector will undoubtedly bring new ideas that can aid growth and development. The industry has been making moves in the right direction, but with a dedicated programme of support we’re hoping to build on that momentum, particularly focusing on SMEs to ensure they have the tools and knowledge to make meaningful changes. “Throughout the programme we’ll be working closely with every corner of the sector, from individuals and small businesses to large corporations with established policies already in place. By focusing on diversity and inclusion we can challenge the norms and create a welcoming, positive culture that reflects the diversity of our population and embraces equality across one of Scotland’s most exciting and valuable industries.” www.cs-ic.org/events
ambition to help more people have a quality, energy efficient home at a more affordable price. We share the same values and mission which is to build modern homes and create communities that are safe, thriving and will bring more sustainability to the housing market.” Gary Orr, Group Chief Executive of Abri said: “Our partnership with BoKlok will achieve our shared ambition to provide homes that are great places to live for people and the planet. We’re committed to helping tackle the housing crisis by delivering high quality, affordable homes at pace, that also minimise their impact on the environment. Our strategic aim is to provide at least 25% of our newbuild homes using MMC and collaboration will be key to achieving this. Our shared values with BoKlok mean that we can really make a difference to meet the demand for affordable homes while creating communities that offer the highest standards of sustainability.” www.boklok.co.uk
UK INDUSTRY NEWS SÖDRA WOOD ANNOUNCES PARTNERSHIP WITH DENHOLM PORT SERVICES Södra Wood Ltd has announced a two-year contract with Denholm Port Services, the leading UK ship agency provider. In light of increased paperwork and more complex requirements following the UK’s departure from the European Union, Södra has taken steps to streamline its imports and mitigate any potential issues or customs delays. Södra is in a unique position, in that its business model gives it full end-to-end control of its supply chain. Södra produces timber in seven sawmill locations across Sweden and Finland, and ships goods from one of three main loading ports: one on the west coast of Sweden, one on the east coast and one in Finland. The goods arrive
studi o l i m e architects Our Bristol based studio team is experienced in efficiently delivering exciting design solutions. We work with a diverse range of clients to provide a bespoke design service for Heritage, Education & Workplace projects. We can assist through all stages of the construction process, from disucssing your requirements through the point where you step through the door. If you are starting to think about your next building project then we would love to speak with you. 45 Colston Street, Bristol, BS1 5AX www.studiolime.co.uk | 0117 3048 308
by boat at three east coast UK terminals – Sheerness, New Holland and Dundee – and one in the Republic of Ireland. “With the UK leaving the EU and all lorries and ships entering the country now requiring customs clearance – combined with the sheer volume of timber we import – we wanted to avoid any potential issues with delays,” explains Anthony Burridge, Shipping Manager. “We therefore took necessary steps to mitigate this risk, and our partnership with Denholm Port Services plays a significant role.
“Denholm is very much the expert in this field and with a team in place dedicated to clearing all of our ships and lorries, we’re confident that we can continue to supply our customers in a timely, cost-efficient way. This partnership is just another step in cementing our long-term approach to the UK market, and continuously improving the service we provide our valued UK customers. Crucially, it also frees up our internal team’s time, allowing them to do what they do best: fulfilling our customers’ requirements to a high standard, each and every day.” www.sodra.com
UK INDUSTRY NEWS NHS STAFF WELCOME MODULAR WELLBEING POD
Working with modular builder, Green Unit, Buckinghamshire Healthcare NHS Trust has installed an eco-friendly wellbeing pod for colleagues at Stoke Mandeville Hospital in Aylesbury. The new wellbeing pod was opened in February by CEO Neil Macdonald and Chief People Officer Bridget O’Kelly. The wellbeing pod is a private space that provides a restful and calming place for all Trust colleagues when they need time away from their busy working day. The unit overlooks trees and greenery within a quiet part of the hospital grounds and a floor-toceiling glazed end provides natural light and a connection to the green surroundings. The project was commissioned by the Trust’s Occupational Health and Wellbeing team and the space will support the long-term wellbeing of colleagues now and post-pandemic. The pod has been funded by NHS Charities Together and Buckinghamshire Healthcare NHS Trust
14
w
Charitable Fund and will also commemorate the late Captain Sir Tom Moore whose astonishing charitable efforts helped to fund the building. The wellbeing pod was built offsite by sustainable, modular builders, Green Unit, and was craned onto site in hours to minimise disruption to hospital operations. The building has a uniquely curved design, which helps to create the warming and calming environment. Jonathan Finnerty, Managing Director of Green Unit, said: “I’m incredibly proud to be involved with this project to support the health and wellbeing of NHS staff. We all know what an incredibly challenging year it has been, especially for the people working in the NHS, who give their time and energy so generously to offer their patients the best possible care. It’s a privilege to see NHS staff starting to take time out to use the new wellbeing pod.”
STRUCTURALTIMBERMAGAZINE.CO.UK
Bridget O’Kelly, Chief People Officer for the Trust added: “We’re so grateful for the fundraising efforts of Sir Captain Tom Moore and everyone who has generously donated to NHS Charities Together and the Trust’s charitable fund. The wellbeing pod will provide our staff with a calm and quiet space to stop and take time out of their busy days.” Green Unit designs and manufactures low carbon, modular buildings from sustainable materials using offsite construction technologies. The ARC building has a unique curved design, which mimics organic forms found in nature. With its commitment to use sustainable materials it has a very low embodied carbon and has a high energy operational efficiency due to its high levels of insulation and air tightness. The ARC also has an attractive external cladding which is made from locally grown timber. www.greenunit.co.uk
Stroud Chapel, © Corbett & Tasker
ZÜBLIN Timber, a “Stroud Chapel” project partner. 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.
Gare Maritime Brussels, © Maxime Vermeulen
Timber Construction Competence www.zueblin-timber.com
ZÜBLIN Timber GmbH, Industriestr. 2, 86551 Aichach / Germany, Tel. +49 8251 908-0, timber@zueblin.de
UK INDUSTRY NEWS CCG LAUNCHES NET ZERO BUILDING STANDARD
Glasgow-based construction and manufacturing business CCG (Scotland) Ltd has launched the CCG Net Zero Home, a new housebuilding standard that has been designed to respond to Scotland’s ambitious target of becoming a net zero economy by 2045. The Net Zero Home is created using a combination of CCG’s expertise in the offsite manufacture of timber systems and building services such as solar PV and air source heat pumps to deliver a standard of specification that reduces Greenhouse Gas Emissions (arising from regulated operational energy use) to a rate less than or equal to 0kg.C02/M2/Year. The outcomes of analysis have shown that when compared to the baseline Section 6 standard for housebuilding in Scotland, the Net Zero Home standard can reduce dwelling emissions by up to 98% whilst energy costs to the end-user can be reduced by as much as 394% (average costs from £117 per year) in houses and 167% (average costs from £334 per year) in flats. Based on an entirely gas-free solution, compliance has been demonstrated across a wide range of house and flat types as result of using the Standard Assessment Procedure (SAP), a methodology for calculating the energy
16
w
performance of dwellings, enabling the standard to be applied to developments of varying forms and size. CCG Managing Director, David Wylie (pictured) said: “For CCG, it was crucial for us to understand the environmental benefits that could be achieved through the use of our existing construction methods and technologies. Our capabilities in offsite manufacturing are some of the most advanced in the UK and we wanted to build upon this position to ensure that the Net Zero Home standard could be delivered to a mass market as efficiently and costeffectively as possible. To do this, we partnered with Carbon Futures to undertake detailed analysis of energy performance and MAST Architects to design a suite of fully optimised house types. “The results prove that if we combine our in-house expertise in construction, manufacturing and building services, regulated operational net zero is achievable today and is capable of delivering a significant reduction in carbon emissions and energy costs for tenants and homeowners alike. The Net Zero Home standard will ensure that CCG plays its part in meeting the Scottish Government’s climate targets and will remain at the forefront of housebuilding in Scotland for many years to come.”
STRUCTURALTIMBERMAGAZINE.CO.UK
MAST Architects Director, Mark Johnstone, said: “MAST are delighted to support CCG in the launch of their Net Zero Home delivering mixed-tenure energy efficient warm and healthy homes in safe and well connected communities. Our work with CCG is supported by a suite of preferred construction details, prepared by MAST, that have been optimised to facilitate the delivery of an innovative product which focuses on a thermally modelled fabric first approach, balancing issues of energy efficient renewable technologies, buildability, capital and costs in use.” Carbon Futures Director, Andrew Money, added: “Having previous worked closely with CCG to maximise the thermal efficiency of their offsite manufactured timber frame solution, we were delighted to provide further support in the development of their Net Zero Home. The Net Zero Home has been designed to avoid the use of fossil fuels, maximise on-site renewable energy will greatly reduce space heating energy demand and deliver significant savings in energy costs for homeowners.” CCG’s first confirmed net zero project will commence in 2021 with North Lanarkshire Council where a total of 19 pilot homes will be constructed as part of a wider 150-unit regeneration in Airdrie. www.c-c-g.co.uk/net-zero
UK INDUSTRY NEWS SMARTROOF INVESTS IN DERBYSHIRE FACILITY Smartroof, the UK manufacturer of offsite, panelised ‘room in roof’ systems, has completed a £1.2million investment in its Derbyshire production facility to drive efficiencies, improve quality and meet the growing demand for its modular roof system. The investment at the company’s Swadlincote facility will see manufacturing capabilities increase by an impressive 150%. It means they will have the ability to produce up to 25 plots per day. As part of the investment at the 48,000ft2 production facility, attention has been paid to layout and flow of materials. Five state-of-the-art fabrication bays have been installed along with 18 new overhead cranes. To further increase the efficiency of production processes, new automated CNC saws enable safe, accurate and fast cross-cutting, while new roof and spandrel benches have been constructed to incorporate retractable airline hoses for improved safety. Whilst improving staff safety and reducing waste, the investment has dramatically increased the company’s production capability. Speaking about the company’s investment in its UK manufacturing operation, Kevin Sherlock, Managing Director at Smartroof said: “Following
STRUCTURAL TIMBER R O U N D TA B L E
the continuing growth of our business it became clear we needed to further invest in our production facility to match the expectation and growth in demand from our customers. With housebuilders turning to ‘room in roof’ systems, this investment has allowed us to improve our output and support the delivery of UK housing programmes with an innovative system that meets the requirements for quality, safety and performance.” The Smartroof system is a complete roof solution, designed to offer housebuilders and developers a solution to maximising sellable space by creating rooms in roofs. Comprising a series of factory produced panels incorporating insulated roof panels, spandrel wall panels, dormers, roof windows, GRP chimneys, soffit and
GUEST RECRUITMENT, FACILITATION & EVENT MANAGEMENT
VIRTUAL ROUNDTABLE OPPORTUNITIES NOW AVAILABLE
fascia, it is delivered to site and craned into place. Once in place, the roofs simply require roof tiling. The system has many benefits – less waste, better control of quality, safer to install – and meets the industry’s demand for solutions that allow us to build better quality homes, more efficiently. The investment programme has reinforced Smartroof’s position as one of the UK’s leading offsite manufacturers of ‘room in roof’ solutions, enabling the company to meet the housing sectors growing demand whilst improving working conditions of its growing workforce. www.smartroof.co.uk
In the current climate with many businesses unable to travel and meet face to face, we have adapted our roundtable offering to host them online making it possible for companies to still engage directly with key influencers to hold a dynamic debate and generate original PR content for post-event use. Each roundtable event is attended by our Structural Timber Editor, who will capture and present the debate in a special feature that will appear in the following issue of the magazine and online via the unique ST Mag Newsroom.
PACKAGE INCLUDES: • Event Facilitation by Darren Richards, Managing Director of Cogent Consulting - leading offsite construction consultants.
For more information or to host your own roundtable debate event, contact Stuart Maunder on 01743 290050 or email stuart.maunder@radar-communications.co.uk
Virtual Roundtable
£3,750 +VAT
• Recruitment and Management of Experts/Participants • Issuing Joining Instructions • Write-up and Feature in Structural Timber Magazine & ST Mag Newsroom
UK INDUSTRY NEWS ARCHITECT SEEKS TO REPLACE CONCRETE WITH RECYCLED TIMBER UK architect and scientist, Dr Colin M. Rose from University College London (UCL) has been awarded the Flemming Bligaard Award of 65,000 EUR from the Danish Ramboll Foundation for his research and work to develop and promote cross laminated secondary timber (CLST) in the construction industry. Foundation Board member and Senior Group Director in Sustainability at Ramboll, Neel Strøbæk, explained the choice of Colin Rose: “11% of the world’s total CO2 emissions come from the production of building materials, in particular steel and concrete. Colin’s research on secondary timber can help us in the industry bring down the emissions, and we truly support his mission.
OHRA HELPS OPTIMISE SPACE
A new mobile racking system from OHRA enables storage capacities for squared timber with only a very small additional space requirement. Four double-sided cantilever racks mounted on mobile stands make it possible to gain storage space while at the same time saving on transport routes.
18
w
“The aim of Colin’s research is to replace concrete and steel with a new mass timber product called CLST made out of reclaimed wood in layers, like scaled-up plywood. The use of CLST helps reduce CO2 emissions, as the timber contains less than half the embodied carbon of concrete and when sequestration is considered, timber has a carbon-negative impact.” Colin Rose who stepped away from architectural practice in 2013 to begin his research at UCL, said: “I am very grateful to receive Ramboll’s support for this continued effort. On a global scale, we discard more than 5 billion tonnes of building materials. And in the UK alone, more than 1 million tonnes of wood are wasted annually. If we could channel just 10% of that material into CLST production, we would have enough CLST for 10,000 homes each year.” “There is green momentum in construction right now and within the next 10 years, it will be more attractive for to reuse building materials, such as timber. But industry and governments need to work closely together to create the market for that. One of the barriers is that buildings
The system is controlled by radio, for example from the forklift truck, or alternatively manually on the transfer carriages. The radio remote control also enables special functions such as positioning the racks for manual order picking or automatically releasing the passage to a warehouse door after a certain time without movement. In addition, the remote control of the system has been expanded so that it can also be used to operate four independent warehouse doors. The mobile racking system consists of a cantilever rack fixed to the floor and four double-sided racks mounted on transfer carriages. By moving the carriages to form a compact storage block, only one racking aisle is ever open for operation with a four-way forklift – so space utilisation is very high. The four mobile racks are 6.4m long and offer a maximum storage height of five metres on five racking levels. Each transfer carriage can be loaded with over 39 tonnes.
STRUCTURALTIMBERMAGAZINE.CO.UK
are often demolished without considering reuse, because it is not a good business case to take them down brick by brick. The reason being that the CO2 embodied in their materials isn’t properly valued, and we rarely count the CO2 spent on new materials. Furthermore, we need to look at how we build, so that it will be easier in the future to separate and reuse materials.” www.ramboll.com
The system is operated via two radio controls or manually on the transfer carriages. Since the more than 16m-long travel path of the racks crosses a passageway to a neighbouring warehouse, an additional button was installed on the warehouse door to open the corresponding racking aisle. Furthermore, the control system was programmed in such a way that the racking automatically clears the door aisle after ten minutes without movement. The control of the racking system also enables the control of a total of four doors – so the forklift driver only needs one remote control with which he can operate both the racking and the doors. The racking can also be moved into a picking position via the control system. The racking system offers both the required increase in storage capacity and an overall significantly more efficient and convenient timber picking. www.ohra.co.uk
Learn more by visiting: www.posi-joist.co.uk
UK INDUSTRY NEWS NMITE APPOINTS FOUNDING CATT DIRECTOR
New Model Institute for Technology and Engineering (NMITE) has announced that Professor Robert Hairstans has joined as Founding Director of its Centre for Advanced Timber Technology (CATT). His role will be to lead the development and delivery of the CATT, to help establish it as the leading national location in timber education and to work with the broader NMITE academic team to create a sustainable educational portfolio. Hairstans joins on a two-year secondment from the number one modern university in Scotland, Edinburgh Napier University (ENU), where he is head of the Centre for Offsite Construction + Innovative Structures (COCIS) within the University’s Institute for Sustainable Construction. Commenting on the appointment, Professor Beverley Gibbs, Chief Academic Officer, NMITE said: “We are thrilled at Professor Hairstans’ arrival and know he has the expertise, experience and passion to develop and deliver the CATT’s vision.” Professor Hairstans’ specialist expertise is in the fields of timber engineering and technology with a focus on adding value to the timber supply chain with an emphasis on engineered timber products and offsite (modular) construction. Commenting on his appointment, Robert said: “I am delighted to be the Founding Director of the CATT. Working with industry I want to accelerate the utilisation of timber, digitisation and factory-based approaches by ensuring an inclusive educational model which generates a value return for the sector via the next generation of built environment professionals.”
20
w
Central to this vision is a new learning and teaching building in Hereford’s dynamic enterprise zone – Skylon Park. NMITE’s building will be a beacon of sustainability and is NMITE’s inaugural advanced campus building that will impact timber technology and advanced manufacturing, sectors that are critical to regional and national growth. When complete, this facility will complement the research and timber testing infrastructure of ENU and, by extension, the Construction Scotland Innovation Centre which is hosted by ENU. This Centre has a unique Innovation Factory capable of manufacturing advanced timber technologies including a vacuum press for cross laminated timber production. The appointment has the additional benefit of bringing together two organisations who, having seen the potential of a future partnership, have now signed a Memorandum of Understanding. A key focus of the UK wide collaborative framework is the idea of CATT as a ‘living lab’, working with industry to develop projects that prototype solutions with students gaining knowledge from reallife conditions. Gibbs explains “NMITE has always shown interest in working in partnership with existing sector leaders who support NMITE’s potential and are open to exploring new educational approaches for the benefit of industry and society. Throughout the recruitment process we constantly heard that ENU were the UK players to talk to and work with and ENU also has a better-than-standard gender split on their built environment course which is one of our core values. NMITE will continue to focus on education and skills and will benefit from ENU’s research and technology transfer. Sited on the England/Wales border, NMITE believes by working with ENU it will be able to look at a UK-wide framework, without competing, for the benefit of all. NMITE explains that it is looking forward to meeting the needs of its industry partners and furthering its vision to develop and provide a degree apprenticeship in Timber Engineering underpinned by a Timber Technology, Engineering and Design competency framework that supports flexible learning and pathway progression. www.nmite.ac.uk www.napier.ac.uk
STRUCTURALTIMBERMAGAZINE.CO.UK
NORBORD INVESTS IN NEW RECRUITS
Norbord has introduced the latest recruits to the company’s Engineering Graduate Scheme. Andrew Chapman, Grant McEwan, Deborah Ayebare and Luca Micheletti joined the scheme on 19 October 2020 and are based at Norbord’s plants in Cowie, South Molton and Inverness. Despite the challenging times young people find themselves in with training and employment right now, Andrew Chapman says he has: “already been exposed to a wealth of different areas within the business giving me a good understanding of the processes and the company as a whole.” These sentiments are echoed by his fellow graduates who also say they have been made feel very welcome by their new colleagues across the company and already feel very much part of the Norbord family. For all the new recruits, the Norbord scheme is a continuation of their engineering training gained at university and they bring with them individual skills which will be put to good use. Norbord is proud of its history of training for young people and has run apprenticeship schemes for 40 years. Andrew Taylor, Group Process and Engineering Manager at Norbord, is one of the graduate mentors and knows the importance of graduate schemes: “It’s a real pleasure to be able to support and mentor the introduction and development of our recent engineering graduate intake. I started my career in the wood panels industry, some 25 years ago, as a graduate process engineer and know just how beneficial to my own development and experience this opportunity was.” www.norbord.co.uk
UK INDUSTRY NEWS TIMBER INDUSTRY RESILIENT UNDER BREXIT FRICTION
Difficulties with logistics, trade with Northern Ireland, and the time and cost to fill out customs and due diligence paperwork are adding pressure to an already tight timber supply chain, a survey by the Timber Trade Federation (TTF) has found. Logistics is the most pressing challenge facing respondents, with a lack of haulage vehicles, inflated costs, and hauliers’ hesitancy to import and export goods in and out of the UK slowing down trade. The next most prominent issue for traders is the Northern Ireland Protocol, which 45% of respondents from Great Britain (GB) who are trading with Northern Ireland (NI) believe is detrimentally impacting their ability to supply the NI market. As timber from GB is subject to customs declarations, due diligence under UK Timber Regulation (UKTR), phytosanitary certificates and potentially duty under the Northern Ireland Protocol, GB suppliers are at a disadvantage compared to their European counterparts, as NI is for practical purposes still in the EU, and timber from the EU is not subject the same or similar requirements. However, NI exporters to GB do appear to
have largely ‘unfettered access’, with 55% of respondents reporting that they were not experiencing trade restrictions while moving goods from NI to GB. Additional administrative procedures, as well as some European companies unwilling or unable to share details of supply chains to help members complete the necessary due diligence under UKTR, is also affecting respondents’ businesses. There was also concern from the survey participants that they will face further challenges and uncertainties once the grace period for customs declarations comes to an end in July, and when UKCA marking is enforced next year. Encouragingly, the survey did find respondents well prepared for their new role as Operators under UKTR and the due diligence requirements this entails, as well as for the new rules for importing, as none of those surveyed mentioned any issues from a compliance perspective. David Hopkins, TTF CEO said: “On the whole, this survey shows that our members are coping well with the changes brought about by Brexit. But the new trade restrictions have come at a time when the market is experiencing unparalleled challenges as a result of the COVID
w
pandemic. In December we released a market statement warning of tight timber and panel supplies into 2021. Now, the situation is exacerbated by increased administration and slower delivery times as a result of the Brexit trade deal.” “Looking ahead we see a variety of challenges besides logistics. Most concerningly is UKCA marking. This mark could raise considerable trade barriers for our members. The Government has yet to draw up the full framework for suppliers from outside the UK, so we foresee businesses struggling to prepare for the implementation of the new mark next year. We are working with the Construction Products Association (CPA) to look for practical solutions to this situation.” The Timber Trade Federation Post-Brexit survey gathered thirty-six member companies’ responses, representing timber importers, merchants, agents, and manufacturers. The survey was conducted between 11 January 2021 to 12 February 2021. You can download the report from the TTF at: https://bit.ly/3ecQyqU
STRUCTURALTIMBERMAGAZINE.CO.UK
21
INSULATION
DELIVERING
OPTIMUM RESULTS Cross laminated timber (CLT) is growing in popularity and can offer many advantages as a sustainable energy efficient building method. It has been used in many construction projects, predominantly within the commercial sector such as schools and hospitals. CLT is an engineered timber product, produced in a controlled factory environment from sustainably sourced timber. It is formed of kiln-dried spruce or pine boards which are laid on top of each other at 90° (three, five, seven or nine layers depending on structural requirements), and then coated with a layer of adhesive and subjected to immense hydraulic pressure to create large, stiff, dimensionally stable panels. Often referred to as ‘Super Plywood’, CLT offers high strength and the structural simplicity needed for costeffective buildings, as well as a lighter environmental footprint than concrete or steel. It also provides numerous other benefits, including quicker installation, reduced waste, improved thermal performance and design versatility. The Structural Timber Association (STA) ‘Advice Note 14, Robustness of CLT structures’, provides good practice guidance for the design, detailing and installation of CLT building structures. A critical element to their successful use is to ensure good moisture management, as whilst the system is robust, poor installation can let the design down. The CLT should always be on the warm side of the insulation to avoid unnecessary moisture fluctuations, which also brings the added benefit of
22
w
External walls (warm wall construction – breathable insulation) Service Class 1 for both sides of the CLT: 1. Cladding spaced off the insulation 2. Drained and ventilated cavity 3. Reflectashield® TF 0.81 4. Breathable thermal insulation 5. Wraptite® 6. CLT 7. Procheck® Adapt (if required pending hygrothermal checks) 8. Optional drylining and battened service zone
mitigating any potential cold bridging issues, as they are adequately catered for with the external envelope of continuous insulation. It is preferable for this insulation to be moisture open to allow the wall to breathe and reduce the risk of builtup moisture within the envelope. The cavity provides extra protection throughout the life of the building. The STA produced further guidance in January this year – ‘Laminate/Mass timber structures – Durability by Design Technical Note 23. This note concludes with some best practice advice including: • Ensure the external wall make up allows for vapour diffusion from the interior to exterior vented spaces (BS5250 standard to be referenced and followed in a design) • Air leakage control membranes and sealants checked to avoid moisture vapour traps • Thermal Insulation should be placed on the exterior side of the laminated mass timber panels. BS 5250 gives good guidance in the moisture management of CLT structures. This advice incorporates
STRUCTURALTIMBERMAGAZINE.CO.UK
many of the above principles and the placement of membranes to reduce the risk of damaging moisture issues. The A. Proctor Group provide a selfadhered, vapour permeable, airtight ‘breather membrane’ – Wraptite® that can be installed either behind or in front of the insulation. Once Wraptite® is applied to the CLT on the outside, the envelope is immediately protected from water ingress such as rain during the construction, which may be beneficial if the insulation is not to be installed immediately. The unique properties of Wraptite also provide the airtight line on the external side of the CLT panels offering, long term protection, and less risk of damages to the airtight layer from internal finishes. The high vapour permeability of the Wraptite provides the ‘breathing wall’ which will help reduce any potential moisture build up that may have happened during the build process and wet trades. For more information visit: www.proctorgroup.com where you can find details on all A. Proctor Group solutions along with links to an informative range of webinars.
DESIGN MORE DESIGN FASTER Gang-Nail design software
Now 44% quicker www.itwcp-offsite.co.uk T: +44(0)1592 771132
Cullen Gang-Nail
E: orders@itwcp.com
@Cullen_GangNail
STRUCTURAL TIMBER AWARDS ROUNDTABLE
HOW GREEN IS YOUR BUILDING?
01 Earlier this year, the delayed Structural Timber Awards 2020 took place online instead of in its usual buzzing, physical environment. With an incredible array of projects, people and products rewarded, a few of the winners took some time out to discuss in more detail the many opportunities ahead for timber technology.
24
w
As with much of contemporary life over the last 12 months, the discussion took place on the Zoom platform. The ‘virtual roundtable’ looked to tease out some of the opportunities available for timber technology across an economy recovering from the pandemic and faced with many environmental challenges, surrounding zero carbon targets and energy efficiency. Here are some key soundbites from the session. The timber sector is typically defined by three main categories – timber frame, structural insulated panels (SIPS) and solid wood – a catch-all term that embraces cross laminated timber (CLT) and glulam. Solid wood products in particular have become familiar across many projects over the last 10 years
STRUCTURALTIMBERMAGAZINE.CO.UK
and are regularly championed in many Structural Timber Award successes. What inspired the choice of structural timber on the projects that ultimately won an award? Sarah Newine Moore, Estimating & Marketing Manager, Eurban: “With our Northstowe project – at the time the largest scheme that we had been involved in – speed was absolutely key. We were appointed at the beginning of 2018 and the building was complete by July 2019: that’s the design, manufacture and erection of the superstructure. That’s an extraordinary feat and only possible through a great collaborative relationship with the wider team and specialists to streamline the process.”
STRUCTURAL TIMBER AWARDS ROUNDTABLE
Facilitator Darren Richards
Pete Blunt
Rory Doak
Andy Heyne
Stephen Hodder
Managing Director, Innovare Systems
Business Development Manager UK & Ireland, Stora Enso
Director, Heyne Tillett Steel
Director, Hodder and Partners
Darren Jarman
Edward Marchand
Sarah Newine Moore
Michelle Richardson
Paul Tracey
Managing Director, Lowfield Timber Frames
Associate Director, Bennetts Associates
Estimating & Marketing Manager, Eurban
Pre-Construction Director, Ideal Modular Homes
Project Manager , Constructional Timber
Managing Director, Cogent Consulting
Andy Heyne, Director, Heyne Tillett Steel: “Timber has moved a long way in recent years. Our client didn’t need a lot of convincing about timber’s many tactile and sustainable benefits but due to the site restraints weight was a key consideration. Timber is a lighter material and offered commercial benefits in that we could add additional development area.” Rory Doak, Business Development Manager UK & Ireland, Stora Enso: “For a place where tourism is such an important driver, the speed of construction was central to the overall success for the client. The site is closed less and you get a weathertight structure quicker. The environmental credentials also play such a huge part especially with COP26 just around the corner.” Stephen Hodder, Director, Hodder and Partners: “The decision was not so much about prefabrication but about the RHS green agenda, that is very much about the ways that horticulture can contribute to wellbeing, cools cities and biodiversity. As the largest gardening project in Europe at 154 acres, the use of timber was in line with that and entirely appropriate.”
Edward Marchand, Associate Director, Bennetts Associates: “It was a very tricky site only a few metres above the tunnels coming out of Kings Cross Station. So it had to be a lightweight solution that would not impact on the tunnels. Reduced concrete foundations meant we could reduce the embodied carbon of the whole structure and offsite manufacture allowed us to speed up installation.”
Speed of design, manufacture and installation, alongside the pursuit of net zero carbon, has meant that sometimes developers and clients are not necessarily looking for architectural good looks but functionality, high performance and low cost (especially in social housing and education). Architects, engineers and building designers have to justify that timber is the right material for the right solution.
Michelle Richardson, Pre-Construction Director, Ideal Modular Homes: “It’s a mixture of speed but also sustainability. For the 16 houses that we have delivered in the Royal Borough of Greenwich – when talking to our timber suppliers – the timber that was used has already regrown in the forests in Austria and is soaking up CO2 in the atmosphere. That’s incredible.”
Darren Jarman, Managing Director, Lowfield Timber Frames: “An old mill was converted into a community centre and the timber frame element was a bolt-on. There was a real contrast between the existing and the new building but it was really important for us to deliver the social aspect – getting the thermal performance and energy efficiency for the residents correct and reducing fuel poverty.”
Pete Blunt, Managing Director, Innovare Systems: “Offsite benefits and the speed associated with it were important. But the drive from government to increase the levels of prefabrication alongside the carbon agenda has put a bigger emphasis on getting involved with a number of net zero schemes. It was a combination of carbon reduction, pre-manufactured value and speed.”
w
Wider questions surrounding low carbon are something that are wellunderstood when dealing with timber but part of the net zero challenge is presenting a more detailed and robust carbon reduction/energy efficient argument. How does the structural timber sector better communicate this low carbon/embodied energy message to the wider construction sector?
STRUCTURALTIMBERMAGAZINE.CO.UK
25
STRUCTURAL TIMBER AWARDS ROUNDTABLE Andy Heyne, Director, Heyne Tillett Steel: “It’s very important that if you are going to do a carbon analysis or assessment that you understand all the information that has gone in to that and it is accurate, so you can then model it through the design to optimise your structure.” Rory Doak, Business Development Manager UK & Ireland, Stora Enso: Digitising sustainability data and making that interoperable with everyone’s systems and understanding the impact of reusing timber, impact of deconstruction and transportation to recycling plant is important – all that information needs gathering up for greater clarity.” Accessibility and clear understanding of the wealth of carbon statistics is an area that needs greater investigation. The staggering amount of information generated in the digital realm needs to be used in a meaningful way and not risk the trope of being ‘rich in data and poor in information’. Even a wellinformed client can find these kinds of facts and figures difficult to interpret. So how does the timber industry get better at communicating one of its biggest assets – low carbon and low embodied energy? Pete Blunt, Managing Director, Innovare Systems: “A better joined-up approach across the industry generally is required – timber suppliers, system providers, architects, engineers – each can’t do it on their own. Some level of coordination and leadership is required on creating a simplified carbon message that is easier to understand.” Sarah Newine Moore, Estimating & Marketing Manager, Eurban: “Each project does use specific amounts of material. That is the thing about timber. Every piece is individual and comes from a specific forest so can be traced and measured. The danger is that everyone is measuring in slightly different ways.” Darren Jarman, Managing Director, Lowfield Timber Frames: “We need to understand what is meant by zero carbon, how we calculate it and then how our products fit into that agenda. At the moment there are far too many people with far too many messages about what net zero actually is.”
26
w
Michelle Richardson, Pre-Construction Director, Ideal Modular Homes: “It’s a combination of making sure that every single aspect of the design team is working towards a common goal. As a modular contractor we are trying to make everything as ultra-efficient as we can in terms of the products we use, constantly evolving and pushing the boundaries of what achievable.”
Pete Blunt, Managing Director, Innovare Systems: “As part of the STA Assure programme we are trying to interlink directly with insurers, warranty providers and other stakeholders that have an impact on whether timber is used. We need to simplify the message surrounding combustibility and fire performance as we are not talking to technical timber experts.”
The UK will host the 26th ‘UN Climate Change Conference of the Parties’ (COP26) in Glasgow this November. The COP summits try to gather momentum and accelerate action towards the goals of the Paris Agreement and the UN Framework Convention on Climate Change. Domestic controversies and cultural politics aside, the UK is heavily committed to climate change and COP26 is a huge opportunity for those working within the timber industry and at trade association level to grasp the opportunity of a generation, to promote the UK’s climate care credentials and how we embrace the planet’s most natural and renewable material.
Edward Marchand, Associate Director – Bennetts Associates: – “Acceptance and availability of test evidence is still lacking, so we need to find a way of creating a universally accepted benchmark. There is also a lack of certified fire engineers to properly assess your design. In terms of insurance it’s not just about life safety and asset protection, it’s also about PI insurance and that is being capped.”
Stephen Hodder, Director, Hodder and Partners: “The corporate institutions are increasingly expecting architects, design teams and the industry to think about how their buildings are contributing to net zero by 2050. Later in the year, the eyes of the world will be on Glasgow and COP26, so there are opportunities to piggyback on that and really create a positive message.” In a post-Grenfell construction world, building performance is under monumental scrutiny. Both positive and negative messaging constantly surrounds the timber sector when the question of fire is raised and it has once again found itself having to defend its properties under flame. Panic created post-Grenfell has been jumped on by competing materials – ostensibly steel and concrete – and ironically in an era where tall buildings are going up all over the world, ‘tall timber’ a realm where the UK was a world leader, has been stopped in its tracks. The government is unlikely to walk back building regulations changes surrounding multi-storey residential blocks and 18m/11m rule. So has the timber sector done enough to counter some of these argument where it has been unfairly targeted?
STRUCTURALTIMBERMAGAZINE.CO.UK
Rory Doak, Business Development Manager UK & Ireland, Stora Enso: “Over the last couple of years the discussions have become harder with a lot more tough questions, but there has been a lot of advancement within the timber industry, architects, developers and stakeholders. We are developing technical arguments quite quickly.” Andy Heyne, Director, Heyne Tillett Steel: “The Structural Timber Association (STA) has done a great job with the ‘Fire Safety in Use’ document on how to assess the fire risk of a building. A two pronged performance and guidance based approach that is directed at smaller and larger consequence class buildings for example makes total sense.” The last 12 months have been paralysed by the COVID-19 pandemic but also slowed by Brexit complications. These two external forces have disrupted the timber supply chain with lower volumes and availability of timber and raw materials generally higher in 2021 (see the article by the TTF’s David Hopkins this issue) and has to be seen as an influencing factor in the way timber is being specified. Paul Tracey, Project Manager, Constructional Timber: “We are looking at €100 a cubic metre (glulam) increase in the last 12 months which is unheard of. Some years there has been no increase at all. Our lead times have doubled. Suppliers are not holding prices for longer than 30 days. A lot
STRUCTURAL TIMBER AWARDS ROUNDTABLE of structural timber is shipping over to North America as those mills have been closed due to the pandemic and the US market will pay more than the Europeans for its raw materials.” Timber specification is ultimately driven by the client, but also hugely influenced by architectural choice, engineering options and wider concerns surrounding climate change. How best can the industry spread the message and sell its key USP: sustainability? More collaborative marketing would be beneficial to make in-roads into the mainstream press and media. But education at all levels is critical, beginning earlier and with greater emphasis in further and higher education. Stephen Hodder, Director, Hodder and Partners: “Sustaining the industry in the long term and embedding the use of the material across Schools of Architecture and Departments of Engineering is so important. Climate literacy will be a central criteria, so there is a real opportunity to think about the material early on and sustain the industry for the next generation.” Although government policy is pushing the increased use of offsite manufacture, albeit mostly across the housebuilding sector, the increased focus on low carbon, energy efficiency and better building performance has never been higher. The focus on quality driven schemes is only going to increase with net zero/low carbon, wellbeing-focused living and working environments at a premium. These are the pressure points for timber to build on – genuine construction and climate commitments tempered with schemes providing commercial and social value – something that will attract any discerning investor. The Structural Timber Awards market timber in its broadest sense. They are a remarkable opportunity to showcase all the buildings and efforts of those involved in developing timber solutions. Many different organisations are involved with any project, and in many ways the Awards are not solely about individual winners but about the industry broadcasting a central message and embedding perceptions of wider use of the world’s leading natural material in a responsible and inspirational way.
STA’S FIRE SAFETY IN USE GUIDANCE The STA’s freely available Fire Safety in Use guidance document, is the latest in a long line of technical guidance documents providing best practice to those in the industry. The document was the product of almost 18 months and nearly £250,000 of work, researching, testing and analysing huge amounts of data on the behaviour of fires in occupied buildings. The STA ran multiple full-scale fire tests to EN1365; the European Regulatory Standard for fire resistance testing for load bearing elements. Each test was conducted on different timber frame systems: comprising walls with insulation and plasterboard variability and even penetrations in the walls for sockets. The European standard was chosen as it is seen within the industry as the ‘gold standard’ of fire testing, and more onerous than the BS (UK Regulatory Body) Standard. Included in this testing regime the panels tested were also run with the systems under maximum load designed to replicate the conditions they would be under when part of a larger building. Competency is crucial to achieving excellent standards across all building products. STA Assure was launched in 2017, implementing an independently audited scheme for all its members classified as structural timber building system suppliers. This scheme has evolved over the years to ensure STA members know how to advise customers, as construction in accordance with regulations and manufacturers guidelines, achieves building safety standards.
Do you have a project or construction professional that you think is worthy of winning a Structural Timber Award? The deadline for entries is 25 June 2021. With a choice of 17 categories to enter, there are no restrictions or cost barriers – companies are actively encouraged to submit multiple awards, as entering is completely free of charge. For more information on the Structural Timber Awards and to enter the 2021 event visit: www.structuraltimberawards.co.uk Many thanks to the Structural Timber Awards for hosting the Virtual Roundtable Event and thanks to all participants for their time and contributions to the online discussion. For more coverage of the 2020 Winners and Highly Commended
w
projects see the special Awards supplement included with this issue of Structural Timber Magazine.
IMAGES: 01. Winner - Education Project of the Year: Northstowe Education Campus - Kier Construction, Eurban & Frank Shaw Associates
STRUCTURALTIMBERMAGAZINE.CO.UK
27
2021 MARKET DEMANDS
A SIGNIFICANT YEAR OF CHANGE
01
02
David Hopkins, CEO of the Timber Trade Federation (TTF), discusses how market dynamics – changed beyond recognition by factors related to the pandemic and Brexit – will continue to exert pressure on availability of construction timber products in 2021. We are living in a world where demand for timber has never been higher across the globe, perhaps partly due to timber’s credentials when it comes to locking away CO2 in its wood fibre for its lifetime in use. It could also be partly due to the speed attainable when building in timber frame. We are living with a pandemic-hit economy, where normal supply and demand market dynamics have been turned upside down. People working from home since the beginning of the pandemic, and thus saving on travel, shopping and eating out, have
28
w
been using their disposable income to improve their homes, gardens and living spaces. This has created an unprecedented impact on the stock needs of the builders’ merchant and DIY supply chains. At the same time, housebuilders, still trying to catch up on projects delayed during 2020, and pensive about the impacts of unemployment on the economy when the furlough scheme comes to an end, are building like there’s no tomorrow, again impacting the levels of timber and wood products stock normally available from suppliers.
STRUCTURALTIMBERMAGAZINE.CO.UK
While many volume housebuilders source their timber on forward allocations – and have therefore been less impacted by Brexit turmoil at the ports – there has still been a settling-in period while customs officials get used to new rules and regulations. This has particularly hit specialist contractors receiving ‘just in time’ cross laminated timber (CLT) and glulam deliveries. There has been confusion over whether phytosanitary certifications are required for some or all softwood timber products, and whether the coniferous plywood quota is still open or has already expired, adding 6% duty to
SSH - Hexagon Head Connector Screw SSH timber screws are the best techincal solution for fixing connectors to timber elements. They significantly reduce installation times on site compared to conventional nailing methods. They can be used outdoors (15-year service life) and offer excellent resistance in treated timber.
Up to 20% higher load bearing capacities than LAG screws. Includes both a 6-lobe drive and a hexagonal head, enabling various ways of installation.
Precision engineered to meet any demand.
Connectors and Fasteners for
CLT Construction C-CLT-UK-2020 | +44 (0) 1827 255 600 | strongtie.co.uk
Building Safer, Stronger Structures. Simpson Strong-Tie® now offers a complete range of connectors and fasteners for almost every application when it comes to Cross-Laminated Timber installations. Designed to make life simpler for builders, engineers and architects.
Pick up your copy of our Connectors and Fasteners for CLT Construction Catalogue.
Call: 01827 255600 | www.strongtie.co.uk
@strongtieUK
2021 MARKET DEMANDS
03 future purchases. The end of the Brexit transition period has also affected the availability of haulage to get imported timber products out to customers nationwide. Yet it is the influence of factors well beyond our shores that has had perhaps the most noticeable effect on supplies of construction timber coming into the UK. Demand for construction timber in the USA, which was anticipated to calm a little following their elections, has in fact done the opposite. President Biden has injected investment into timber frame housebuilding on a scale unimaginable in Europe, radically pushing up both levels of demand and prices being paid for structural timber products. This has diverted a certain amount of supply from European producers to the USA: material that might otherwise have replenished the formerly comfortable levels of buffer stocks here in Britain. Forward prices being paid for construction timber in the USA are now higher than spot prices, which gives some idea of where buyers over there see pricing potentially heading this year. Another factor has been the substantial extra demand created by lockdown domestic improvement projects and housebuilding across Europe, mirroring what we have witnessed in the UK. Some countries in Europe are placing bans on log experts, compounding the supply situation. The impact of the Spruce Bark Beetle on softwood supplies in Germany is also thoughtprovoking: Germany has had to cut a large proportion of its whitewood as part of its strategy in dealing with this
30
w
pest, whose range is moving inexorably northward due to climate change. With the potential of sustainable timber to positively benefit the climate crisis now being acknowledged across the world, the movement towards mass timber buildings is additionally beginning to affect wider supplies. The supply situation in structural panel products, OSB and structural plywood, is also likely to remain tight for the rest of the year. OSB has been selling on customer allocations since the middle of last year. As there are no further supply pipelines which can be deployed to create additional material, the situation is likely to remain the same for the foreseeable future. Similarly, there is little extra capacity globally that can be brought on stream to remedy the difficult supply situation in P5 chipboard. As I-Joists and metal web joists are manufactured using both structural timber and structural panels, again supplies are likely to remain constrained for the meantime. It’s also a tough situation for supplies of TR26 and the trussed rafters and metal web joists manufactured from them. Is there light at the end of the supply tunnel? If not precisely light, then there is at least a way forward for timber frame manufacturers. Keeping in constant contact with your supplier about your needs going forward and being careful to constantly review your pricing of construction projects from Quarter 2 to the end of this year, may help you to make the best of the business realities of today’s timber market. Currently prices for products such as C24 are being reviewed monthly: prices for
STRUCTURALTIMBERMAGAZINE.CO.UK
04 TR26 are being review quarterly, and both may well be upwardly-mobile if demand remains internationally high. The real good news in this COP26 year is that the concept of timber frame is gaining credibility as a means of combating climate change both in government and as a new asset class amongst investors looking to find new value for the future. While timber supplies are likely to remain restricted, possibly for the remainder of this year, and the magnitude of price changes is almost impossible to forecast, we can at least take comfort in the fact that the material which is the mainstay of all our businesses is increasing in its proclimate reputation and is thus likely to maintain its growth in the marketplace for many years to come. www.ttf.co.uk
IMAGES: 01. David Hopkins, CEO, TTF 02-04. Timber supplies across the sector are expected to fluctuate throughout 2021
Assured protection for your building projects SPECIFY TIMBER TREATED WITH VACSOL 6118 WATER BASED, METAL FREE PRESERVATIVE
TREATED TIMBER
4 BPR (Biocidal Products Regulation) Authorised 4 Innovative VAC-VAC booster technology for enhanced protection and performance 4 Treated timbers for use in Use Classes 1, 2 and 3 (Coated)
FIND OUT w: trustvacsol.com e: timberprotectionadvice.ukca@lonza.com MORE
VACSOL Aqua 6118 is a BPR authorised product. Use wood preservatives safely. Always read the label and product information before use.
NET ZERO TARGETS
DELIVERING LARGE-SCALE LOW-CARBON BUILDINGS
01 Christian Dimbleby, Associate, Architype, explains how timber is increasingly being used in education buildings to create low-carbon and healthy spaces for staff and students. At a time when climate change is at a critical level, the construction industry is faced with intense speculation as to its approach when reducing environmental impact in new buildings. It is essential that architects and others involved in designing the built environment tackle this challenge head on. When it comes to ensuring net zero carbon buildings, timber plays a key role. What do we mean when we say lowcarbon design or ‘net zero carbon buildings’? The UK Green Building Council splits the definition up into two sections – construction and operational energy. This is an important distinction, as currently UK Building Regulations only focus on operational energy
32
w
through Part L requirements, which themselves are nowhere near stringent enough. Although approximately 28% of global carbon dioxide emissions come from building operations, a further 11% comes from building material and construction often referred to as ‘embodied carbon’ or, as a recent trend has defined it, ‘upfront emissions’. When you look at the impact of new construction over the next 30 years to 2050, the role of building materials is significantly more important than building operations by up to nine times the emissions. Timber is a low-carbon material: it is a natural product, needs minimal processing and refinement to make into a usable building material, and can lock up carbon in the building through ‘carbon sequestration’ – which is why it is sometimes thought of as carbon negative. But, even if this last aspect is not accounted for, timber still has significantly lower embodied carbon than alternative building materials, such as concrete, steel, brick or blockwork.
STRUCTURALTIMBERMAGAZINE.CO.UK
At Architype we have developed a detailing strategy using timber to ensure that building designs achieve the highest thermal performance on education projects. The system uses deep timber I-joists or Larsen trusses on the outside of the timber frame or cross laminated timber (CLT) structure, which can then be filled with cellulose (recycled newspaper) to form an envelope with no thermal bridges and minimal temperature loss/ gain through the envelope. These requirements reduce heating demand by 90% compared to typical newbuild schools and help to meet the Passivhaus standard, which ultimately aims to minimise operational energy. Timber also has many other environmental benefits besides lowering carbon. The research into biophilia has shown that being surrounded by nature can benefit health and wellbeing. It can provide great aesthetics and being surrounded by the beauty of nature and natural materials puts us at ease, lowering stress levels and other wellbeing indictors. This is essential in educational buildings,
NET ZERO TARGETS where lower stress and being at ease assists in retention of information and learning. CLT has a higher strength to weight ratio than solid concrete. Moreover, one cubic metre of concrete weighs approximately 2.7 tonnes, while one cubic metre of CLT weighs 400kg. Reducing the weight of the superstructure means that foundations can be significantly reduced, which saves both money and carbon. Architype’s timber educational buildings generally have no piled foundations; they can be installed on a minimal concrete raft, with insulated formwork. Similarly, the lightweight nature of timber means that it is possible to expand existing facilities without adding new foundations, such as the rooftop extension at The Gower School, a Montessori school in London. Flexibility is a critical part of a functioning circular economy, as this allows buildings to be reused and adapted by others over time, rather than being used for a single purpose and then discarded. Careful spatial planning combined with modern timber structural solutions that can easily span 6m to 8m allow this. Timber is advantageous as it is the best material for simple adaptation on-site – cutting holes and adjusting is much simpler and easier than with steel or concrete. Where possible, locally sourced materials should take priority, as this substantially reduces emissions from transportation, as well as increasing sustainable employment in the local area. For the Enterprise Centre at The University of East Anglia, a materials map was devised at competition stage to evaluate what local products could be used. In the end 80% of the structural timber frame came from Thetford Forest, and the columns to the front were larch from the Brandon Estate, Suffolk. The cladding was Yeoman wheat straw thatch, grown and harvested locally, and the clerestory roofs were clad in Norfolk reed. Similarly, in the design for Burry Port School in Carmarthenshire, the timber came from locally sourced forests. The timber frame consisted of Welsh/ borders larch: the Brettstapel was sourced largely from Welsh woodland, 90% Sitka spruce and 10% Douglas fir. Beech was specified for the hardwood
02
03
04 dowels and cladding from untreated Welsh/UK-grown larch. Many redundant materials were also reused in the construction of the Enterprise Centre at the University of East Anglia. The timber cladding on the west facade was made from old Iroko laboratory desks that had been sitting in storage for many years and were simply cut and planed to form a beautiful facade. Coppiced timber screens that had been used in the Sensing Spaces: Architecture Reimagined exhibition at the Royal Academy of Arts in 2014 were repurposed into dividing screens in the open space ground floor. Spare furniture was used, rather than building new – this included the reception desk from the Sainsbury Centre for Visual Arts at University of East Anglia (as due to popularity a larger one was needed), as well as most of the seating and furniture in the upstairs pods. The Government has promised funding for school refurbishments and to create one million new school places by 2020.
w
The operational and embodied carbon of buildings can be radically reduced through the use of timber, without impacting on the design quality of the building. Future building design will have a choice between designing from materials, such as timber, that allow the building to be grown consuming mainly sunlight and the carbon that we are trying to limit, or materials that require unsustainable and often irreversible damage to the Earth’s natural capital. This is an extract from TRADA’s Timber 2020 Industry Yearbook. To read the full article, with supporting references visit: www.trada.co.uk www.architype.co.uk
IMAGES: 01. Burry Port School, Carmarthenshire 02-03. CLT has a higher strength to weight ratio than solid concrete 04. UEA materials map the majority of primary materials were sourced within a 50-mile radius to the university. All images courtesy Architype
STRUCTURALTIMBERMAGAZINE.CO.UK
33
NET ZERO TARGETS
TIMBER AS A CARBON STORE According to the World Green Building Council (WGBC), of this 40% of global carbon emissions, 28% comes from the operational carbon and 11% from the embodied carbon of the construction materials. In order to keep the global temperature increase below 2°C, all sectors of the economy must rapidly decarbonise. The vision of the WGBC is that by 2030 all new buildings, infrastructure and renovations will have at least 40% less embodied carbon and that by 2050 the embodied carbon should be net zero. These are extremely ambitious targets, so what does this mean and is it achievable?
01 The reduction in global carbon emissions and achieving the impending 2030 and 2050 carbon targets won’t be easy but the wider use of timber will help immeasurably, Callum Hill, Consultant at JCH Industrial Ecology Ltd explains why.
34
w
In September 2020 President of the European Commission Ursula von der Leyen in her State of the Union speech stated: “Our buildings generate 40% of our emissions. They need to become less wasteful, less expensive and more sustainable. And we know that the construction sector can even be turned from a carbon source into a carbon sink, if organic building materials like wood and smart technologies like AI are applied.”
STRUCTURALTIMBERMAGAZINE.CO.UK
The embodied carbon is the total of the greenhouse gas emissions that are associated with the extraction, processing, manufacture and transport of a product from the point of the raw resource in nature to the product leaving the factory gate. This is usually known as cradle to gate (modules A1 to A3 in EN 15804). Because different greenhouse gases have different impacts, the total emissions are converted into a common factor, known as the global warming potential (GWP), which is reported in carbon dioxide equivalents (e.g. kg CO2e). Sometimes, these are direct emissions – for example, the release of fossil carbon as CO2 during the conversion of limestone to clinker in cement manufacture. Quite often, these emissions are indirect, such as the release of carbon dioxide by power stations in the generation of electricity. Is it really possible to get these emissions down to zero? This is where the use of timber in construction can help. Trees absorb atmospheric carbon dioxide as they grow and this carbon is stored in the wood (biogenic carbon). Eventually, the tree will die and the carbon will be returned to
NET ZERO TARGETS
FIGURE 1.
FIGURE 2.
the atmosphere as the wood decays. In plantation forestry, this wood is harvested and can be used in harvested wood products (HWPs), which will store the atmospheric carbon for the lifetime of the product. Meanwhile, the harvested tree is replaced with new growth, so that the process of sequestration continues. The Intergovernmental Panel on Climate Change (IPCC) provides guidance on how to record carbon stocks in the different pools (forest, HWP). The principal is shown diagrammatically in Figure 1. This shows the carbon cycle, with storage of atmospheric carbon in the forestry and built environment carbon pools with incineration at end of life and return of the carbon back to the atmosphere. The question is – if the carbon returns to the atmosphere at end of life, is there really any extra climate change mitigation benefit obtained from using timber in construction? This question can be answered by referring to the graph in Figure 2. This shows a simple model where a constant amount of atmospheric carbon (stored in the timber) flows into the built environment carbon pool every year. The loss of this material is modelled over time, where all of this annual input is eventually lost. This loss is modelled for each year’s input (this is called a distributed pool approach). The way this loss is modelled has been chosen to best represent what actually happens with buildings during their lifetime and represents all of the buildings in the built environment carbon pool. This is much better than considering a single
building, where wildly different answers can be obtained, depending upon the assumptions made. The effect of the lifetime of the timber products is illustrated by using a 50% loss time of 50 years and 100 years (similar to using the IPCC approach of half-lives). The result of this study shows very clearly the benefit of using timber in the built environment as a carbon store and the additional benefit gained by life extension of the timber products. This shows the benefit of using timber in the built environment as a carbon store, but what about the impacts associated with processing the material? A recent report for the UK Climate Change Committee (UK CCC) showed that increasing the timber content of buildings produced a lower GWP impact (carbon footprint). The GWP of two building types used in the UK CCC study is shown above in Figure 3. The data is for a detached house and for medium-rise flats, either built using conventional masonry materials, or using high levels of timber (e.g. CLT in the flats). Here, the positive values (in black) represent the embodied carbon emissions and the negative values (in white) are the atmospheric carbon that is stored in the timber of the structure (even masonry structures contain timber, just less of it). The increased use of timber in construction does not only store atmospheric carbon, but there is a measurable reduction in the carbon footprint (GWP) per m2 of floor area for an identical building. For the detached house, this saving amounted to 75 kg CO2 equivalents per m2 and for the
w
FIGURE 3.
high-rise flats 256 kg CO2 eq. per m2 floor area. Finally, at the end of life (or multiple lives, if the wood is cascaded down the value chain), the wood can be incinerated and the stored solar energy can be recovered and used to heat buildings or generate electricity. The conclusion is that using timber to substitute for inorganic materials, such as steel and concrete, results in a lower level of emissions of greenhouse gases, plus there is an additional mitigation benefit to be gained, due to the storage of atmospheric carbon in long-life products in buildings. Extending the life of the timber used in buildings increases the benefit. The key is to design for a long life and ensure the potential for repurposing. www.theccc.org.uk www.jchie.co.uk
IMAGES: 01. Substituting timber for steel and concrete results in a lower level of emissions of greenhouse gases
STRUCTURALTIMBERMAGAZINE.CO.UK
35
MACHINERY upgrading from other models of automatic saw can also expect a performance boost. A host of optional infeed and outfeed features further increase throughput: chain infeed, increase pusher speed, automatic outfeed collection, outfeed length selectors, label or inkjet printing.
BOOSTING CUSTOMER PERFORMANCE
01
Accuracy and versatility Whether straight or angled cutting, a Salvador will meet the strictest of tolerances. Standard machines deliver cut lengths to within +/- 0.5mm. Not good enough? The optional magnetic strip system increases accuracy to +/0.1mm. When angle cutting, rotation of the blade between +/- 70° is made in under a second to a precision of +/- 0.1° (special angle parameters are available as an option).
03 All timber processors should be aware of the countless benefits a Salvador automatic crosscut saw can bring to their production. The SuperPush 200, SuperPush 250 and SuperAngle 600 all share the same key attributes.
02 Daltons Wadkin are helping manufacturers across the UK and Ireland increase productivity through the supply and installation of Salvador crosscutting systems. Despite the obvious challenges of 2020, sales of Salvador crosscutting solutions have seen exponential growth over the past 12 months, a trend that looks set to continue in 2021. Increased sales to producers of garden furniture, studios, sheds, timber framed buildings, fencing, joinery, pallets and cases have been fuelled by a need to meet soaring demand, boost capacity and take control of manufacturing in house.
36
w
Optimising: reduce waste, increase yield Salvador automatic saws benefit from full PC control. Running powerful optimising software, cutting lists are continually analysed to give maximum material yield for each individual length of timber cut. Residual off-cuts can then be ‘shattered’ for secondary processing and removed from the production line through an optional waste trap door. Defecting: grade and remove Operators can decide which parts of a timber length are acceptable and which are not. Using a fluorescent pen, operators mark knots and shakes which don’t meet production standards. The Salvador analyses these defects in conjunction with the cutting list to optimise the length accordingly. In a similar method, entire lengths of timber can be graded from 1 to 5 with each grade having its own separate cutting list. Reduce labour – reduce costs The work of four or five operators using manual saws can be handled by a single Salvador crosscut. Customers
STRUCTURALTIMBERMAGAZINE.CO.UK
Software integration Salvador has the power to adapt to your preference. Cutting lists can be programmed directly at the machine or remotely from any office-based PC using a familiar Excel spreadsheet. The data is then transferred via USB drive or standard wired/ wireless network connection. For timber frame manufacturers the Salvador can be integrated into existing software production management systems such as Consultec, hsbcad, Wolf Systems etc. Service: installation, training, support Over the past 120 years, Daltons Wadkin has built an enviable reputation for providing first class customer support. Beginning with the sales process, customers can expect detailed discussions and working demonstrations to help define their requirements. Following a pre-delivery site visit, our engineering team puts in place a turnkey installation package to cover delivery, commissioning and operator training to help ensure maximum return for your investment. Ongoing telephone and remote NET support is provided free for the lifetime of the machine with optional planned preventative maintenance contracts also available. For more information and to see how a Salvador crosscut saw can benefit your business visit: www.daltonswadkin.com or email: info@daltonswadkin.com IMAGES: 01-03. A Salvador automatic crosscut saw can deliver countless benefits to timber processors
WOOD SOLUTIONS IS LOOKING FOR
INTERNATIONAL WOOD AGENTS FRANCE - DENMARK - UNITED KINGDOM - GERMANY - ITALY
Round poles and sawn timber, all FSC® certified, with high natural durability (European class 1) Directly from source, FSC® certified Eucalyptus saw logs and veneer logs Specialized in European water work applications. Marine borer resistancy Please contact us for our conditions and more details
Headoffice in The Hague, The Netherlands Partner of Margadant Wood in South Africa. info@woodsolutions.nl | www.woodsolutions.nl
BY BUYING PRODUCTS WITH THIS LABEL YOU HELP TAKE CARE OF THE WORLD’S FORESTS. FSC®C016391
Specialist wet room floor manufacturer, On The Level, and leading manufacturer of waterproof wall panels, Fibo, together created a mini wet room environment, which was filled with water and left for 60 days – THE ULTIMATE WATERPROOF TEST. With ZERO LEAKS after 60 days, you can confidently put your trust in our reliable products to create the ultimate wet room for your next project.
WWW.ONTHELEVEL.CO.UK
WWW.FIBO.CO.UK
D AY
ST TE
60
To see the test for yourself visit:
https://bit.ly/wetroomtest
MACHINERY
PRODUCTIVITY CENTRE WITHOUT LIMITS
AREA XL offers up to 60 tool stations in total, including two sawblades for each machining head unit. The operator’s work becomes even easier, both during the process, thanks to automatic workpiece handling and referencing systems, and during chip removal from the work area, thanks to innovative cleaning systems. AREA XL also allows to work in total safety, thanks to the full enclosure and a protected access system to the work area through laser barriers. Tommaso Martini, SCM Business Unit Manager for CNC machining centres for timber construction, says the new technology caters for the use of CLT that is increasingly widespread within the construction industry. “This is a modern, ecological, resistant product that can adapt to the most diverse design requirements and, thanks to these special features, can also be used for the construction of multi-storey buildings of considerable heights,” says Tommaso.
01 of those companies requiring high productivity, accuracy and reliability.
02 The latest SCM technological solution has been developed for the industrial production of large format cross laminated timber (CLT) panels. AREA XL is the new 5-axis CNC machining centre designed and manufactured by SCM for the industrial production of large format CLT panels. This solution, an evolution of the already popular and appreciated AREA model, was developed to meet the needs
38
w
The processing of large format CLT panels is characterised by heavy duty stock removal, process automation in the handling and referencing phases, as well as cleaning of the work area: the new AREA XL has been designed taking into consideration these specific requirements. With this machining centre, size and thickness of CLT panels are no longer a problem. Elements up to 16,000mm long x 3,600mm wide and up to 400mm thick can be processed, in particular thanks to an electrospindle of high power and torque: 63 kW in continuous operation. The overall productivity can also be further increased by equipping the machining centre with a second machining head unit, capable of executing several operations simultaneously. Another plus is the possibility to perform transversal throughfeed-drilling operations even on the maximum panel size, thanks to optional auxiliary units.
STRUCTURALTIMBERMAGAZINE.CO.UK
“SCM is able to offer this market a strong know-how and expertise, thanks to a long experience in high technology solutions gained over the years with the OIKOS and AREA CNC machining centres dedicated, respectively, to the processing of modular and large format panels. A path that finds today, in the new AREA XL, a further evolution to respond to the needs of companies that demand to combine increasing productivity with high levels of accuracy and reliability. SCM is a competent partner for all those industry professionals who are looking for a new and different approach to the one they have encountered so far.” SCM never stops improving and offering to the timber construction industry innovative, high technological solutions, in line with the demands of an ever expanding market. This exclusive approach is derived from decades of experience in designing and manufacturing CNC machining centres for many applications and production needs. www.scmgroup.com
IMAGES: 01-02. AREA XL offers up to 60 tool stations in total, including two sawblades for each machining head unit
Setting the standards for timber fastening BeA your partner for timber frame and offsite construction manufacturing
Across Europe and worldwide, BeA’s fastening technology, tools and consumables are the trusted choice for some of the biggest and best known names in timber frame and offsite construction. BeA manufacture an extensive range of market leading fasteners, nails, staples and tools. We offer customers: •
An unrivalled range of manual and semi-automatic fastening solutions combined with a fully automated range in Autotec.
•
Using industry leading quality controls, BeA meet or exceed standards such as Eurocode 5.
Reliable products, competitive prices and the kind of service and delivery you can depend on from BeA. 01482 889 911 sales@uk.bea-group.com visit our new website www.bea-group.uk
THE POWER OF FASTENING
ACM have been manufacturing bandsaws in Novellara Italy since 1979 and this expertise has been put into the 9 ranges of bandsaw on offer. Unlike many big names all ACM products are manufactured in Italy, they are not a Chinese product branded with a famous name, it is Italian manufacture and european build quality.
For more information call
01634 572625 07741 484991 www.acmuksaws.co.uk
SUMMA BANDSAWS RANGE •
Suitable for cutting wood, beams, insulating materials sip boards and much more
•
It guarantees safety for the operator and very high precision
•
Maximum cutting height 500mm @ 90 deg
SWING BANDSAWS RANGE •
Tilting band saw with carriage
•
Suitable for cutting wood, beams, insulating materials sip and much more
•
Guarantees safety for the operator and very high precision at every degree of inclination
•
Electric band saw tilting 0°-45°
•
Maximum cutting height @ 45°: 300mm
•
Maximum cutting height @ 90 deg 500mm
Take a look at our latest machine: www.youtube.com/watch?v=fVtPQ5rPeK0
STRUCTURAL TIMBER AWARDS 2021
THE FLAGSHIP TIMBER INDUSTRY EVENT
On 06 October 2021, the construction industry will once again come together at the National Conference Centre, Birmingham to celebrate those who inspire, innovate and exude excellence at the Structural Timber Awards.
Over the last seven years an astounding 470 companies have entered the Structural Timber Awards and over 100 have picked up a trophy on the night. So winning an industry award is without doubt a big deal, demonstrating to clients and competitors that you are a leading light in the sector.
40
w
But this is not a stuffy ceremony with lots of formal speeches, it’s a fun and vibrant event where everyone has a great time and the evenings celebrations are rounded off with a casino night where the stakes are low – playing with phony chips – so everyone is a winner. As world leaders grapple to find solutions to combat the impact of climate change, sustainable structural timber systems are acknowledged as critical in the battle to reduce carbon emissions in the construction sector. This, combined with enhanced speed and performance benefits, are just some of the reasons for the abundance of exceptional projects. So, it is easy to see why these awards are experiencing
STRUCTURALTIMBERMAGAZINE.CO.UK
exponential growth and each year the industry turns out in force to reward and celebrate this success. Showcasing Excellence This event is the ideal opportunity for construction professionals to maximise industry exposure by demonstrating what separates them from their competitors. The winning organisations will be promoted to a national audience, giving entrants the opportunity to make their mark on this economically important market. Entering the Structural Timber Awards allows the most innovative achievements in timber to be upheld by the industry alongside those considered the nation’s best. Earning ‘highly commended’ or winning an award will earn entrant’s recognition within the construction community, leading to an abundance of new business prospects for each company.
STRUCTURAL TIMBER AWARDS 2021 Award Categories Timber continues to stand at the core of success across sustainable construction projects. This year’s awards will recognise excellence in all sectors, from self-build, private housing and social housing to education, healthcare, commercial, retail and leisure. Project individuals will also be celebrated, with categories open for clients, architects, installers, contractors, engineers, project managers and industry pioneers.
SOCIAL HOUSING PROJECT OF THE YEAR
PRIVATE HOUSING PROJECT OF THE YEAR
PRODUCT INNOVATION AWARD
EDUCATION PROJECT OF THE YEAR
CLIENT OF THE YEAR
HEALTHCARE PROJECT OF THE YEAR
ARCHITECT OF THE YEAR
2020 Success Last year, 97 companies and project professionals were shortlisted from a selection of over 280 entries across all categories. The 2020 ceremony saw Heatherwick Studio collect the prestigious Winner of Winners award for Maggie’s Leeds. Other award winners included: Anta Architects, BAM Construction, Corbett & Tasker, CSK Architects, Eurban, Facit Homes, Frank Shaw Associates, HESS TIMBER, Heyne Tillett Steel, Hodder & Partners, Ideal Modular Homes, Innovaré Systems, Kier Construction, Plotform, Ramboll, shedkm, Stora Enso, Studio RHE, The Office Group, Tonkin Liu, UCL & ZED PODS.
COMMERCIAL PROJECT OF THE YEAR
CONTRACTOR OF THE YEAR
RETAIL & LEISURE PROJECT OF THE YEAR
ENGINEER OF THE YEAR
LOW ENERGY CUSTOM & SELF BUILD PROJECT OF THE YEAR PROJECT OF THE YEAR
PROJECT OF THE YEAR
PIONEER OF THE YEAR
INSTALLER OF THE YEAR
PROJECT OR CONSTRUCTION MANAGER OF THE YEAR
GET INVOLVED ENTER THE 2021 STRUCTURAL TIMBER AWARDS Do you have a project or construction professional that you think is worthy of winning a Structural Timber Award? The deadline is fast approaching on 25 June, so the countdown is on and with just a few months to go and with a choice of 17 categories to enter – the time is right to gain the opportunity to take centre stage at these prestigious awards. There are no restrictions or cost barriers – companies are actively encouraged to submit multiple awards, as entering is completely free of charge. Enter at: www.structuraltimberawards.co.uk Contact Amy Pryce on: amy.pryce@structuraltimberawards.co.uk or 01743 290001 for more information.
w
STRUCTURALTIMBERMAGAZINE.CO.UK
41
VOLUMETRIC TIMBER
TIMBER TRAILBLAZER
01 As 2021 started, the multi-award winning Hope Rise development on Chalks Road in St. George, Bristol welcomed its new residents. This revolutionary affordable housing solution uses timber volumetric technology to great effect. The project is designed to be an affordable and low-carbon housing development aimed at creating a mixed tenure affordable housing scheme over a car park. Bristol City Council, in partnership with ZED PODS, YMCA and the Bristol Housing Festival, provided these much needed attractive, zerocarbon modular ZED POD homes for young people at risk of homelessness as part of the council’s social housing provision.
housing. The one and two bedroom apartments are built on a podium above a council-owned car park. This takes advantage of the air rights, removing the land cost and consequently making the development extremely affordable. The Hope Rise development is a demonstration of how innovation can help to solve our housing crisis, through the way homes are built and rethinking land use is the first 100% socially rented development of its kind in the country.
It is a pioneering environmental and socially-focused development delivering much needed social housing for young people in need of affordable
From the outset, the project has looked for innovative ways to create a community, recognising that this cannot be done simply through
42
w
STRUCTURALTIMBERMAGAZINE.CO.UK
physical design. Through collaboration with YMCA Bristol, two of the apartments have been assigned to designated ‘community builders,’ who will encourage interaction and neighbourliness in this new community and encourage residents to invest in the Hope Rise and St. George communities. This will be something they will explore together as they settle in over the next few months. “We’re delighted the community builders and residents have moved into the ZED PODS,” said Jessie WiIde at the Bristol Housing Festival. “This final milestone in the completion of the
VOLUMETRIC TIMBER Hope Rise project is the culmination of two years of collaborative work between Bristol City Council, YMCA Bristol, The Bristol Housing Festival and ZED PODS and it’s an achievement of which we are all incredibly proud. We wish the new residents everything of the best in their new homes.” The principal contractor for the development is Impact Modular who constructed and delivered to site the ZED PODS designed homes under license from ZED PODS. The apartments have been made from cross laminated timber (CLT) panels. The building fabric is further optimised using offsite fabrication with superinsulated walls and roofs to achieve high level of airtightness (1.3 ach at 50 pascals), heat recovery ventilation, high standards of draught proofing, and low heat loss – circa 90% improvement over building regulations. The scheme aims to improve the fabric efficiency of the building beyond the 97% fabric energy improvements in the Standard Assessment Procedure (SAP). This development is capable of offsetting all regulated energy demands and the A-rated Preliminary Energy Assessment (PEA) shows that negative carbon emissions are possible across the site. Airtightness membrane in between CLT panels and insulation ensures that the airtightness layer will be untouched for the life of the building. “We wanted to address key worker and affordable housing issues without compromising on our values of sustainability and quality,” said Dr. Rehan Khodabuccus, Operations Director at ZED PODS. “We are very pleased that Bristol City Council has had the foresight to partner with us directly and are so enthusiastic about the potential for more developments like this. With momentum, quality modular, designed-for-manufacture housing can play a leading role in city centre housing provision” Thomas Northway, Chairman at ZED PODS, added: “We are delighted to bring this innovative housing project into fruition despite the challenges of the pandemic. Collaborating with Bristol City Council, YMCA Bristol and the Bristol Housing Festival on this pioneering scheme, we have demonstrated how good quality,
02
03 affordable homes can be built quickly on constrained sites like car parks using offsite construction.” The project was deemed as a Bristol offsite pilot project with the opportunity of scaling up and replicating the scheme to other sites. ZED PODS was chosen by the council based on superior energy performance measures and help them achieve ultra-low carbon and ultra-low energy consumption – a complete sustainable development. Over the lifetime of the project the scheme is expected to have no net carbon footprint and could offset both the carbon footprint of the original construction, plus the annual maintenance and annual energy needed to run the homes. “We are really pleased to see this development finished, particularly as it demonstrates that new housing is about creating great places that promote resilient communities,” said Marvin Rees, Mayor of Bristol. “Seeing people move into their new homes is one of my favourite parts of my role as Mayor, and it is fantastic to be able to see these people move into their new homes to start the new year. Bristol is a city of innovation, and we have taken a lead on exploring new solutions to the housing crisis that is evident across the country.
w
We all need to work together to tackle these big issues, and there has been some fantastic partnership working to bring these ZED POD homes to the city.” The homes have been optimised for energy efficiency and lowest possible energy costs, with PV panels to generate electricity in the day, quiet running heat pumps for low energy heating, controlled ventilation which recovers usable heat from inside the building whilst bringing in fresh air, triple glazing, LED lighting and energyefficient appliances. “Home for many of us is something we take for granted,” said Julia Clapp, YMCA Chaplain. “But it’s not a given for everyone and the response from those nominated for Hope Rise has highlighted again to me the need for more housing like Hope Rise; housing that feels like ‘home’ and where you get to be part of a community. At the YMCA our aim is to see young people ‘belong, contribute and thrive. Hope Rise creates an environment where this is possible.” www.bristolhousingfestival.org.uk www.zedpods.com IMAGES: 01-03. The timber homes are a trailblazer for affordable low carbon living. Courtesy ZED Pods
STRUCTURALTIMBERMAGAZINE.CO.UK
43
AIMCH than ever. In a post-COVID world the sector needs to transform productivity, improve quality as well as improving the welfare of its workforce. We also need to find more sustainable ways of building in order to achieve a net zero-carbon built environment. The AIMCH project has already made great progress across a number of fronts which will better enable greater MMC adoption across all parts of industry including SMEs.”
ADVANCED CENTRE MMC & TIMBER
01 Advanced Industrialised Methods for the Construction of Homes (AIMCH), the innovation consortium set up to transform the housebuilding sector, has published its second-year progress report showing encouraging results and key learnings for the sector. AIMCH is a three-year research and development project aiming to help tackle the UK housing crisis by building new homes faster, to higher quality and more cost effectively than masonry methods using panelised offsite systems. The latest report highlights several key learnings for the industry across several important and innovative areas. One of the highlights being able to achieve a weathertight, insulated and secure superstructure in just one day. All advanced panelised offsite systems and lean construction solutions trialled so far have been successful and early analysis is recognising the benefits of these systems with the hard data to back it up. Other important outputs of the project in the last year include the completion of several studies and the publication of guides for industry including: design
44
w
02 standardisation and the development of product families, guide to creating a BIM housing manual, design for manufacture and assembly (DfMA) and designing a future factory. “Despite the challenges of COVID-19 the project team has worked hard to build momentum,” says Stewart Dalgarno, AIMCH Project Director and Stewart Milne Group Director of Product Development. “It has delivered some important outputs which confirm panelised MMC as a very real and viable alternative to masonry, over the final year, we hope to take this to a new level.” A collaboration between Stewart Milne Group, Barratt Developments, L&Q, Forster Group, the Manufacturing Technology Centre (MTC) and Construction Scotland Innovation Centre (CSIC), the project compares conventional and panelised MMC construction methods on actual building sites, and the impact scaling up panelised MMC will have on the housebuilding industry. The threeyear project, which has been live since early 2019, has been trialling new digital design tools, manufacturing advancements, and improved near-tomarket offsite panelised systems, using lean site processes on live housing projects over the past two years. Mark Farmer, the Government’s MMC Champion for Housebuilding and new AIMCH Chair, said: “Mainstreaming all categories of MMC is more important
STRUCTURALTIMBERMAGAZINE.CO.UK
The project recognises the challenges of MMC manufacturing and through engagement with MTC, lead manufacturing partner, has conducted advanced manufacturing and digital business systems studies. These include down selection process for an integrated ERP system for MMC manufacturing and installation, along with detailed proof of concept studies into specific manufacturing areas, where using robotics and advanced automation can improve MMC manufacturing output, productivity, quality and lower costs, including the design of future factories using mathematical models, dynamic simulation and 3D technology to improve investment decisions. With decarbonisation of the built environment a priority, the project embarked on a study to measure and profile Embodied Carbon and Whole Life Costing in the use of MMC systems across four housing types to current and near zero carbon standards. A strategy for a proof of concept, near zero carbon home trial was also developed with Barratt Developments. The goal of the project is to support the sector by delivering 120,000 homes for the same or less cost than traditional methods and built 30% quicker. The project has potential to impact on 35,000 homes being delivered by AIMCH partners across the UK each year. In the project’s final year, a number of outputs and learnings for the sector will be completed and shared on the AIMCH website as well as at industry events, with final findings published in March 2022. www.aimch.co.uk
IMAGES: 01-02. All advanced panelised offsite systems and lean construction solutions trialled so far have been successful
CIRCULAR ECONOMY
MAXIMISING
OUR NATURAL RESOURCES into other construction products, such as insulation or panel boards, with a further 12% used for animal bedding and surfaces. The remaining 65% was either known to be used as a biofuel for energy production or believed to be indirectly used for energy production as part of the mix of refuse derived fuel (RDF) from waste facilities. It is therefore clear that we need to do more with what we have, e.g. by maintaining timber products in place for longer, by refurbishing, remanufacturing and/or reusing timber components. We also need to ensure we become more self-sufficient in timber production, with the UK being second only to China as the largest net importer of timber and timber products.
01 Timber is the ultimate renewable material, but where does it fit into the circular economy? Charlie Law, Managing Director, Sustainable Construction Solutions, examines how the timber industry could embrace a system that makes the most of its available resources.
46
w
Traditionally, industry has followed the ‘take, make, dispose’ linear consumption model, where resources are taken from the earth to make whatever is needed and the products are disposed of at the end of their life. The circular economy is based on the three key principles of: designing out waste, keeping products and materials in use and regenerating natural systems. Although the timber industry has been promoting a circular business model for years, and the latest report from TRADA (based on data from the Environment Agency and the Wood Recycling Association) found that less than 1% of ‘waste’ timber ends up in landfill, it is estimated that only 23% was recycled
STRUCTURALTIMBERMAGAZINE.CO.UK
The UK must consider the long-term security of its vital timber supplies. Although there is currently a stable supply chain from many countries around the world, particularly those in Europe, for the 60% plus of the UK’s construction timber requirements, this may not be the case in the long term. The need to reduce carbon emissions from the built environment means that every country will have to look at constructing lower embodied carbon buildings, and timber is a key material in helping to achieve this. There must therefore be a sustainable homegrown timber supply for the future, as well as ensuring more is done with existing resources. For example, only 10% of the hardwood felled in the UK today is used for timber production much of the remaining 90% is used for biomass, without any previous use. Although the utilisation rates for softwood timber are significantly higher, this demonstrates that this valuable resource is not being used as efficiently as it could be.
Safety Storage Efficiency
Manage your Timber more safely and more productively using less space with Combilift’s materials handling solutions
• • • • •
Safer product handling Optimised production space Improved storage capacity Increased productivity & output Enhanced profits
combilift.com
CIRCULAR ECONOMY To facilitate the take up of the above options, changes in business models will be required. Where components are to be recovered for reuse, refurbishment or remanufacture at the end of their service life, it would be beneficial if the ownership remained with the component supplier. This allows them to control any required maintenance on the component to ensure it remains in use for the required service life, and also the recovery of the component at the end of its service life. There are various business models that could be used for timber products, and the one used would depend on the intended service life of the component, and the level of maintenance required throughout this life. Possible business models that could be considered are short-term hire, longer-term leasing, service contracts or incentivised return in addition to, or preferably instead of, standard sales contracts.
02 Doing more with what we have primarily means finding new engineering solutions. Work already done in this area includes the Edinburgh Napier University research project on producing cross laminated timber (CLT) panels from UK timber used for pallet manufacture. If we ensure that more of the 43 million pallets manufactured in the UK are recovered and reused, this will release a significant amount of timber for UK CLT manufacture. Traditionally, to make timber last longer, durable species have been sourced from the UK or overseas, or nondurable species of softwood timber chemically treated with hazardous heavy metals such as copper and chromium. However, due to the availability and cost of durable hardwood timbers, and restrictions on the use of the chemical treatments and issues with reuse and disposal at end of life, other innovative solutions are now available. One such solution is the thermal modification of timber. Through this process non-durable hardwood species, such as ash and sycamore, can be converted into a durable product reaching class 1 or 2 durability. An alternative to thermal modification is the acetylation process pioneered by Accsys Technologies in their Accoya®
48
w
products, where certain softwood timbers are in effect pickled in an industrial vinegar. This has a similar effect to the thermal modification process, making the wood unpalatable to insects, fungi and bacteria. This has resulted in Accoya® products in external above-ground applications, such as windows and doors, being guaranteed for 50 years, with an expected lifespan much longer than this. This means these products are likely to last at least the 60-year period required for the external skin of a building. They can also be used for certain structural components. Ideally, at end of life, all components of a building need to be dismantled with the intention that they are refurbished as required and reused or sent for remanufacture into new components. This may mean the use of, for example, quick release connections, such as Sherpa connections for structural timbers, which can be lifted off, or the use of innovative joints installed in products during manufacture, such as the Kährs Woodloc© 5S system, which allows the flooring to be dismantled. Recycling timber, which in most cases actually means down-cycling, should only be considered where maintenance, reuse or remanufacture are not viable options over the life of the building or product.
STRUCTURALTIMBERMAGAZINE.CO.UK
For example, in the long-term lease of a component that needs little or no servicing, such as a partition wall system, the wall system would need to be flexible enough to be used in various locations, both on the original site of installation or other similar buildings where the nominal floor to ceiling height was within a defined tolerance. The manufacturer could then control the installation and removal, and any subsequent refurbishment or remanufacture before being leased to another client. There is already much innovation in the timber product industry with many products already in place that could easily adapt to a circular economy model. Therefore there is clearly scope for timber product manufacturers to move to a circular economy business model, but this will require a change in the way products are marketed to the construction industry, as well as education and an acceptance of these business models by clients. www.susconsol.co.uk
IMAGES: 01. Only 10% of the hardwood felled in the UK today is used for timber production with much of the remaining 90% used for biomass 02. A significant amount of timber for UK CLT manufacture would be available if we recovered and reused more of the 43 million pallets manufactured in the UK
Specify responsibly
Wraptite® Construction membranes may be hidden after the project is complete, but their role in ensuring proper heat, air and moisture movement through the building envelope and safeguarding the health of the building and occupants is essential. Wraptite is a unique BBA-certified external airtightness solution for walls and roofs. This membrane not only provides airtightness and vapour-permeability, its self-adhering installation method reduces programme length, installation costs and material waste. Specify responsibly:
It’s what’s on the inside that counts.
01250 872261
www.proctorgroup.com
THE LAST WORD
SOWING THE SEEDS OF SUCCESS business grant funding to be distributed through local authorities is also positive, and the sooner businesses can receive details of the criteria for application the better.
01 Helen Hewitt, CEO of the British Woodworking Federation (BWF) has high hopes for the future, as the Spring Budget may signal a promising year for the woodworking and joinery sector. The 2021 budget was always going to be focused on Government’s role in supporting COVID-19 recovery for sectors and individuals hardest hit by the pandemic. However, when summarising the economic outlook, the Chancellor acknowledged that in the construction industry, output was significantly higher in the second half of last year, reflecting its ability to bounce back. Although, as in all sectors, our members have been looking to the year ahead with some apprehension, many of the measures announced give hope for cautious optimism. We welcome the extension to business rates relief, as well as the continued VAT deferral scheme and the new loan guarantee scheme to support businesses’ access to loans and overdrafts. Maintaining cashflow is crucial for our members, many of which are SMEs. The additional discretionary
50
w
In addition to the measures aimed at shoring up business finances, the budget placed a welcome focus on initiatives enabling them to plan for and invest in their futures. New funding provided for high quality traineeships for young people being just one of the measures where we see particular benefit to our sector. From September, employers providing work placements for 16-24 year olds will receive £1,000 per trainee. Similarly, many skilled industries, including the woodworking and joinery sector, will welcome the extended and increased incentives for employers to take on apprentices. Those hiring new apprentices will now receive double the previous payment at £3,000 per placement. The new Help to Grow Management and Digital courses will help businesses get world-class management training, while the digital provision will offer free expert training and a significant 50% discount on new productivityenhancing software. For BWF members and the construction industry’s SMEs, these courses will be a real support for businesses looking to grow and expand this year and beyond. Recruitment and training will be vital in driving our sector’s post COVID-19 recovery. While apprenticeship recruitment was heavily impacted in 2020, we hope the new measures will provide effective incentive to increase apprentice uptake in the coming year, and we will fully support our members in identifying and accessing available funding. While it is disappointing that the budget didn’t contain a stimulus package for UK housebuilding, we were encouraged
STRUCTURALTIMBERMAGAZINE.CO.UK
by the newly-announced Modern Methods of Construction (MMC) Taskforce, co-ordinated by The Ministry of Housing, Communities and Local Government (MHCLG), which is charged with accelerating the delivery of MMC homes in the UK. This presents not only an opportunity for the woodworking and joinery sector, but for the UK to become a global leader in sustainable construction by harnessing the benefits of timber products. The extension of the Stamp Duty holiday is also a welcome boost for the housing market and our members, providing new opportunities for property renovations and refurbishment. But what was missing? In our view, the Budget lacked a clear green building stimulus. The Green Homes Grant, announced in 2020’s Budget, has not been fit for purpose. This has resulted in poor take up due to the lack of flexibility it provided homeowners. There remains a gap here. We know from separate research that demand for home renovation is high, but it is vital homeowners are incentivised to make choices that positively impact the environment. We believe that the increase to Corporation Tax – currently set to rise from 19% to 25% in April 2023 for companies with profits over £50,000 – will have a potentially detrimental impact on larger companies within our membership. This is a time where businesses of all kinds need to be encouraged to invest in growth, and we would welcome further consultation on all incentives to support this. The Spring Budget is a light at the end of a long tunnel. The combination of support for business finances, extensive investment in skills and training, and recognition of sustainable methods of construction all provide vital support for the growth of BWF members and the wider construction industry. As we move through 2021 and the COVID-19 recovery, the BWF will continue to champion our sector’s role in helping the UK to build back stronger and lobby the Government to ensure the voice of our membership is heard. www.bwf.org.uk
IMAGES: 01. Helen Hewitt, CEO, British Woodworking Federation
OUR PRODUCT? PEACE OF MIND. OUR SERVICE? PIECE OF CAKE. Available Now
When it comes to protecting your timber products in the low pressure market, Koppers PROTIM offers continued supply for the long-term. • Take advantage of a long-term, trustworthy supply of PROTIM products • No need for expensive and risky stockpiling • Get in touch today
www.kopperspc.eu | kpc.uk.sales@koppers.eu |+44 (0)1628 486644 ™ Protim Solignum Limited trading as Koppers Performance Chemicals. Koppers is a registered Trademark of Koppers Delaware, Inc. Whilst every attempt has been made to ensure the accuracy and reliability of the information contained in this document, Protim Solignum Limited gives no undertaking to that eect and no responsibility can be accepted for reliance on this information. Information will be updated when the need arises. Please ensure you have an up to date copy. All products are produced by independently owned and operated wood processing facilities. All other trademarks are trademarks of their respective owners. Koppers Performance Chemicals, Protim Solignum Limited, Fieldhouse Lane, Marlow, Buckinghamshire, SL7 1LS. Visit: www.kopperspc.eu, Email: kpc@koppers.eu, Call: +44 (0)1628 486644, Fax: +44 (0)1628 476757. Registered in England 3037845. © Copyright 2020.
CNC MACHINING CENTRES FOR TIMBER CONSTRUCTION
SCM is able to provide high technological cnc machining centres for the construction industry. Structural beams and modular elements of wooden walls are produced with extreme accuracy and rapidity thanks to Oikos and Area. The innovative structure with 6-axis architecture allows any machining operation on all faces without revolving or repositioning the workpiece. SCM Maestro Beam&Wall software permits easy interface with most CAD programs used by customers, thanks to the import of BTL files, the most common format used in timber construction.
SCM UK Tel. +44 (0)115 9770044 - scmgroupuk@scmgroup.com - www.scmgroup.com
