The New Model Building, a turning point in decarbonisation?
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[edit] A major turning point in efforts to decarbonise housing construction
Waugh Thistleton Architects, who have pioneered the use of cross laminated timber in mid-rise residential buildings since 2003, have collaborated with UCL, Buro Happold and Gardiner & Theobald to develop The New Model Building, a set of design principles demonstrating how mass timber can be used safely to construct residential buildings up to 18m in height, in full compliance with UK building regulations and local policy set by bodies such as the Greater London Authority.
The New Model Building is an exemplar methodology for building residential developments, illustrating how substitution of a traditionally constructed superstructure with engineered timber can reduce the embodied carbon footprint by over 50%, and demonstrating how this can be fire safe.
[edit] In the wake of the Grenfell tragedy
Professor José L. Torero, a Head of Department at UCL and expert witness to The Grenfell Inquiry, provided his expertise in fire safety to the project, has said, “This project draws a line that defines what all stakeholders accept is a fire safe timber residential high-rise building, this gives us an agreed starting point for improvement and refining.”
In the wake of the Grenfell tragedy, changes in U.K. building regulations prohibiting the use of combustible materials in the external walls of high-rise residential buildings has created hesitancy around the use of engineered timber in construction. This lack of confidence has threatened the U.K's ability to meet emerging embodied carbon targets and address the climate change crisis, despite wide acceptance of the knowledge that the use of structural timber is one of the primary ways to reduce the carbon emissions produced by construction.
[edit] Set of open details support by NHBC
Andrew Waugh, Co-founder and Director at Waugh Thistleton Architects, said, “This new set of details – which anyone can use – is a major step forward as we now have a way to build using timber up to 6 storeys with the knowledge it meets current guidelines and has the support of insurance and warranty providers.”
The New Model Building project team have been working with the National House Building Council (NHBC), a national warranty and insurance provider, who have reviewed the New Model Building methodology.
Chris Hall, Technical Innovation Manager at NHBC said, “We support the use of natural construction materials in housebuilding when employed in line with our technical standards. Natural construction materials can offer various advantages during the construction process and are being increasingly employed across the industry. Timber is very versatile and perhaps the oldest of all construction materials, and its use in housebuilding continues to evolve.”
The development of the New Model Building was funded in part by Built by Nature, a network and grant-making fund dedicated to accelerating the timber building transformation in Europe and the U.K. In the past year Built by Nature have provided funding support to similar industry led initiatives such as the Mass Timber Insurance Playbook and the Commercial Timber Buildings Guidebook. Together the projects aim to help the industry overcome significant barriers to the use of mass timber in recent years.
As part of the New Model Building launch, a full suite of technical details, as well as guidance on how to use the design, have been published and are available to download for free on an open-source platform:
Link to download the New Model Building.
[edit] Industry response
Paul King, CEO of Built by Nature, said, “Game-changer is an over-used phrase, but truly applicable here. 6 storey residential timber buildings that exceed UK Building Regulations, meet GLA policy and slash embodied carbon by over 50% - all pre-assessed by a major national warranty provider! We think this will unlock a significant shift in the way we build housing in the UK”
Jonathan Roynon, Technical Director at Buro Happold, said: “We at Buro Happold are excited to be part of this groundbreaking work, which is a key step in helping the UK construction industry strive towards our net-zero targets through the use of timber in medium rise residential buildings. Gaining full review from a national warranty provider is a major milestone which we hope will encourage further incentives across the industry to join and help see this low carbon solution re-employed in delivering these net-zero commitments.”
Oliver Booth, Partner at Gardiner & Theobald, said, “G&T is thrilled to have contributed to this watershed moment that we believe will be vital to the future of sustainable development in the housing sector. We see the New Model Building providing the guidance and confidence needed to kick start greater use of mass timber residential projects across the UK and help accelerate the industry's transition to net zero.”
[edit] About the contributers
Waugh Thistleton is a world leader in engineered timber and a pioneer in the field of tall timber buildings. Since their inception they have prioritised the principles of reduce, reuse, recycle in their work, producing innovative and imaginative design solutions that harness leading technologies and minimise their impact on the environment. The quality of their buildings and commitment to low carbon construction has earned Waugh Thistleton an international reputation in environmentally viable architecture and design.
UCL civil, environmental and geomatic engineering department is a multidisciplinary department renowned for excellence in research and teaching the Department currently hold a substantial EPSRC research portfolio in civil engineering. Home to world-leading research projects, groups and centres, we reflect a broad, enquiring and human-centred view of the engineering world. Professor José L. Torero works in many aspects of fire safety engineering and remediation. He has developed novel methodologies for the safe design of complex buildings such as tall buildings, historic architectures or timber structures and has conducted extensive research in engineering education that has resulted in the development of successful educational programs in Fire Safety Engineering worldwide. Jose was an expert witness to The Grenfell Inquiry.
Buro Happold is an international, integrated consultancy of engineers, consultants and advisers. Operating in 26 locations worldwide, with 72 partners and over 1,900 employees; for over 40 years we have built a world-class reputation for delivering creative, value led solutions for an ever-challenging world.
Built by Nature is a network and grant-making fund accelerating the timber building transformation, connecting key actors across the built environment and forest communities to spark city-scale projects and amplify stories of ground-breaking timber and bio-based projects and solutions. Through collaboration with its major partners and frontrunners, Built by Nature aims to change perceptions around timber construction and reshape the built environment system. The Built by Nature Fund awards grants to the teams and solutions that can increase the uptake of sustainable timber and improve its climate impact, overcoming some of the most challenging barriers.
Gardiner & Theobald is an independent construction and property consultancy committed to providing world class service to clients. The dedicated team of over 1,300 people delivers Cost Management, Project Management and Specialist Consultancy services from a network of UK and US offices bound by a common purpose - to build a better tomorrow.
G&T defines success by the value created for clients, the fulfilling careers built for people and the contribution to the communities where they work. G&T’s own long-term business performance aligns profit with purpose, taking social and environmental responsibility for the legacy they leave behind.
[edit] Related articles on Designing Buildings
- ACM cladding.
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- BS 8414 Fire performance of external cladding systems.
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