Thanks both. The the green seems to be a patina, and is definitely metal if not copper.
The closest I found was this: https://parotec.pl/product-eng-8483-PAROTEC-CU-copper-tape-ANTIMOSS.html but is adhesive rather than wide panels.
Not sure if anyone has come across similar materials before...
Hi,
I think this is copper roofing sheets but cannot seem to find an equivalent manufactured cladding with this texture?
Building circa 1980.
Many Thanks