Copper Faced Felt

[Onoff]

Never knew it existed! Apparently it goes nicely green with age too.

 

https://www.burtonroofing.co.uk/geco-copper-faced-felt-4kg-10m-x-1m.html

[Big Jimbo]

The embossed surface makes it look strange. However if you saw it on three houses, it would look normal. It's a bit like a modern building. On it's own it might look a bit odd, but stick 3 or 4 of them in a road, and they no longer look strange.