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FROM THE EDITOR


A


t the time of writing, COP26 is about to begin in Glasgow, and by the time you read this, it may have been the scene of some pretty alarming protest activity, designed to bring home the critical urgency of humanity’s need to change its ways on carbon.


Boris Johnson has accepted he is very concerned about the event. Not so much about the likely lukewarm promises from some major nations on carbon reduction, which admittedly won’t give him much to cheer in TV interviews, more the prospect of Insulate Britain/Extinction Rebellion shutting down parts ofWest Scotland and stealing the headlines from what’s supposed to be a landmark event for his premiership.


For Johnson, COP26, which began on Hallowe’en, could be a horror show. However any political embarrassment for him pales into insignificance compared with the possible scenarios in a couple of decades, if the climate change activists’ predictions are proved right. Fires, floods and more, meaning huge areas of the globe becoming uninhabitable and leading to population flight like we have never seen. For my part, I don’t want my kids to have to endure a world where we can’t even function, due to the damage we could have done more to mitigate.


What does all this doom and gloom have to do with building envelopes, I hear you cry?Well, with 40% of UK emissions reportedly coming from buildings, and 14% of that from our current 28 million homes, it seems actually quite a lot.


However, all is not lost. As our project report by Tom Boddy shows, on page 14 of this envelope-focused supplement, applying the ‘recycle, reuse, reduce’ agenda being widely advocated to existing buildings (in this case, Arup’s 1990s workplace Triton Square) can reap huge carbon rewards.


The project is an inspiring example of a practice revisiting and fully investigating its former work, and saw Arup removing the outer layer of the double-skin facade, repairing, and replacing it. Of course, such an all-encompassing approach may be tough to achieve for projects without the resources Arup were able to bring to bear, but that doesn’t mean it shouldn’t be sought.


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Here, Lendlease set up a temporary facility to clean and refurbish 3000 m2 of facade panels, a massive


investment. However, according to Arup’s calculations, this plus the other refurbishment measures employed saved 57,000 tonnes of carbon, compared to a new build.


Architects are increasingly embracing the reuse agenda, for aesthetic and functional as well as sustainability goals. The kind of savings the planet needs to really make a difference to climate change are within reach if such approaches are widely adopted.


James Parker Editor


BUILDING ENVELOPE


11.21 adf


ON THE COVER... Arup’s redeveloped 1 Triton Square is one of the UK’s first large-scale projects where a circular economy approach has been applied to the facade, saving over 19,000 tonnes of carbon and represented a 66% reduction in costs. Cover image © Simon Kennedy For the full report on this project, go to page 14


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ADF NOVEMBER 2021


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