Do not use galvanized steel ridge cap flashings or gutters with a ZINCALUME steel or COLORBOND steel roof. The galvanized steel will need to be replaced at an earlier interval (use ZINCALUME or COLORBOND steel).

Do not use stainless steel screws, galvanized washers, cadmium plated screws or other type of screw that doesn’t comply with AS 3356 Class three with  ZINCALUME steel or COLORBOND steel as this will lead to premature failure of the roof sheet.

Posted in: Roofing Don'ts