鈥淲e need to provide leadership,鈥� states architect Ruth Butler. 鈥淟et's show everyone that great architecture is at the core of sustainable building鈥�.
is one of numerous practices that has committed to the 澳门王中王鈥檚 2030 Climate Challenge, which launched last month. It asks 澳门王中王 Chartered Practices to set out now on a trajectory that will deliver net zero whole-life carbon for new buildings and full refurbishment projects by 2030.
Since designing and building her own house to Passivhaus standards three years ago, Butler has insisted on working to the standard for all projects.
鈥淥nce you鈥檝e built a low energy building, it鈥檚 hard to go back,鈥� she enthuses.
Educating the client and contractor is an important part of a successful low carbon build. Butler has found that arranging an introductory day for a contractor is invaluable. To this end she has previously enlisted the services of Bill Butcher, Director of the for a contractor to contractor Passivhaus induction.
After one of these training days, the contractor decided then and there to attempt to exceed the brief and attain a Passivhaus new-build level for what was only a refurbishment scheme.
Butler regards measuring embodied carbon as her next step and the most interesting challenge ahead. Measuring embodied carbon, which has to be eventually reduced by 50 to 70%, is another cornerstone of the challenge.
ECD Architects has been promoting sustainable architecture for almost 40 years. The practice generally relies on the Passivhaus Planning Package (PHPP) to predict operational energy (as kWh/m2/y) of projects.
Embodied carbon is something the practice is starting to look at for larger schemes and refurbishment projects, says ECD鈥檚 Head of Sustainability Loreana Padron. And, like Ruth Butler, Padron adds that there is a lot of education needed for clients and contractors. ECD often provides its own seminars for clients on low energy design, incentivising challenging targets.
The new 澳门王中王 Plan of Work will make this process smoother for all sides, she believes. New 澳门王中王 Plan of Work guidance will be published soon, together with a guide on Sustainable Outcomes aligned to the UN Sustainable Development Goals.
Alastair Mallett, Technical Director at , agrees with Padron. Once the new Plan of Work is published and Noviun embed the 2030 Climate Challenge targets into their bid documents, informed clients will be looking to their professional team to deliver them, he believes.
Noviun specialises in schools, and Mallett notes that the practice has a project on site that was designed three years ago but meets the 2030 Climate Challenge target for operational energy. One of their projects, completed 18 months ago, was approaching the standards of the 2030 target. "We鈥檙e are comforted that we seem to be tackling the current issues," Mallett says.
Post occupancy evaluation (POE) is one aspect of the challenge that Noviun need to address. Reducing operational energy by the Challenge鈥檚 target of at least 75% will require POE of some form.
鈥淲e are aware that to close the performance gap between design and actual operational performance, reliable data is needed,鈥� he admits. 鈥淭he more that we know, the better informed the project team will be and the better we can advise our clients.鈥�
Mallett suggests that detailed POE will have to be a collaboration with service engineers, as they have the tools to measure operational energy and potable water usage.
鈥淲e realise we have a way to go in reaching all of the targets set in the 2030 Climate Challenge. However, with the changing attitudes of Local Authorities, we firmly believe that all of these are attainable.鈥�
Implementation of improvements to energy performance across the industry is in all likelihood inevitable, with the Future Homes Standard and revisions to Approved Documents for Part L and Part F for dwellings all at the consultation stage.
鈥淢ore than 200 councils have now signed up to carbon reduction targets. Planning authorities in London and Manchester have the power to insist new developments comply with zero carbon targets. Once further local authorities adopt this approach, all developments can embrace the carbon reduction programme.鈥�
鈥淚n this era of climate emergency, every industry must question its practice,鈥� affirms Maria Smith, whose practice have also signed up to the 2030 Climate Challenge. 鈥淥ver 700 practices and 澳门王中王 have declared a climate emergency. This challenge now is to declare 鈥� by quantifying and publishing 鈥� our part in the crisis and our part in its solution.鈥�
Thanks to Alastair Mallett, Technical Director, Noviun Architects; Loreana Padron, Associate Director & Head of Sustainability, ECD Architects; Ruth Butler, Director, Ruth Butler Architects; and Maria Smith, Director, Interrobang.
Text by Neal Morris. This is a Professional Feature edited by the 澳门王中王 Practice team. Send us your feedback and ideas.
澳门王中王 Core Curriculum Topic: Sustainable architecture.
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Posted on 7 November 2019.
