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Concrete: do architects have their heads in the sand?


I agree completely with Rab Bennets above. You cannot make sweeping statements like this. The analysis should be comparative. i.e. concrete facade vs brick facade or aluminium facade, and concrete will have the lowest embodied energy by far (we have examples in our HBERT research). Even when compared to CLT, you still normally apply a rainscreen, and in some systems the sub-frame and rainscreen can add so much embodied carbon that it outweighs and saving from timber or stone. We need a lot more scientific rigor around this matter, the work from the UKGBC and LETI is a good start towards getting there but it will take a long time before the industry gets past this "concrete is evil" oversimplification. Steel is also around 8% of global CO2 emissions...

Posted date

17 January, 2019

Posted time

4:06 pm