Faux copper glossy metal roof

Has anyone cleaned these? I asked if they knew the manufacturer but no luck. I’m thinking to try house wash mix first then bump it up if needed.

Did you end up washing one of these? Pretty sure one of my clients has the same thing.

I did. I just used my house wash mix, but you’d be better going a little stronger. I was at about 1%. Shoot for 2% and don’t let it dry. Rinse good.