Guest User
It was suggested to me that galvalume is a better product than galvanized when considering unpainted steel roofing. Specifically, galvalume is more resistant to rusting, and remains shiny longer ( therfore reflects heat& sunlight better). I this true? Also it was suggested that galvanized and galvalume are incompatable? Thanks Aivars Berzins
Todd Miller
Isaiah Industries, Inc.
Both galvalume and galvanized have similar test data and track records. Galvalume may be a bit better for moderate environments. Galvanized perhaps better for real harsh environments or for heavily formed roof panels. Both products will be made better by having a quality paint finish on them. Light colors will be reflective but there are also now dark colors with reflective pigment. I believe that the two metals are compatible.
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