"danmc68" wrote in message
...
I have a new charcoal colored Galvalume 26-gauge steel roof on my
house. I was wondering if I should expect some fading of the color
over time. Will chalking occur? Do these roofs sometimes need a
professional cleaning? There's a 40-year warenty on the Valspar
coating.

Thanks!

Isn't this something you should have asked the installer "before" buying the
roof?