“ With an ‘ A1 ( non-combustible material )’ fire classification … copper is suitable for cladding
tall buildings using appropriate constructions .
AURUBIS
For example , copper can be supplied in profiled sheets or extremely flat honeycomb panels , pressed to provide surface textures and modulation , or perforated , expanded or woven as mesh for transparency .
But there is more to architectural copper than meets the eye , with an unrivalled lifespan , no maintenance and full recyclability . With an ‘ A1 ( non-combustible material )’ fire classification to EN 13501-1 , copper is also suitable for cladding tall buildings , using appropriate constructions . Low thermal movement makes it appropriate for any climates and locations , and it is non-toxic and safe to handle , as well as non-brittle and safe to work . And , importantly today , its inherent antimicrobial qualities make it ideal for touch surfaces internally as well .
LONG-TERM PERFORMANCE
The lifespan of copper roofing and cladding can be regarded conservatively as 200 years , subject to substrate and structure , and this is endorsed by experience . Naturally , this longevity has a significant beneficial effect upon comparative whole of life cost assessments . Copper ’ s longevity is due to a complex patination process . It ensures extreme durability with no maintenance and resistance to corrosion in virtually any atmospheric conditions . And , unlike some other architectural metals , copper does not suffer from underside corrosion .
Photo : Chris Hodson
In addition , copper requires no maintenance or decoration . As a lightweight and flexible covering , structural support demands are reduced , resulting in lower carbon and ‘ whole of life ’ costs . Copper is also fully recyclable utilising long-established practices – 97 % of copper in construction comes from recycling – and has other impressive sustainability and environmental credentials . And , of course , copper retains a high scrap value at eventual demolition .
To explore inspirational Nordic Copper building studies , visit : www . nordiccopper . com / copper-stories / or email : g . bell @ aurubis . com
Photo : Jim Stephenson
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