Unfortunately I am not certain on this. I would suggest contacting one of the major manufacturers of those products (Metro, AllMet, ATAS, or Decra) and getting their input.
Todd Miller
2011-05-03 07:16:45.000000
Hello, I have a metal roof that has a 'granular' finish that has faded. Is it possible to repaint this type of metal roofing with some type of 'granulated' paint?