Galvalume has barrier corrosion resistance and heat resistance similar to aluminized material and good bare edge galvanic protection and forming qualities like galvanized material. Consequently, Galvalume is more corrosion resistant than steel and can resist rust, the elements and fire while providing a sturdy and protective covering.  In a nutshell, Galvalume is a proven metal roofing material because of its strength, outdoor corrosion resistance, easy assembly and longevity.  It comes with a 35 year warranty and can handle huracane winds up to 90 mph!