Galvanized Metal Roofing Paint

Avoid using alkyd based paints such as spray paint on galvanized steel.

Galvanized metal roofing paint.

Galvanized metal roofs are coated with a layer of zinc that inhibits rust. For the most dependable results look for paints that are formulated specifically to bond to galvanized steel. If you re not sure what kind of roof you have ask a professional roofer to inspect it before you paint it. Unfortunately over time this coating can fail leading to minor rust outbreaks.

Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal. If crawling around on a metal roof in the hot sun does. Many metal roofs are made out of galvanized metal which is a type of metal that has been covered with hot zinc in order to protect it from the weather. The enamels in alkyd paints can react with the slick zinc finish on a galvanized steel surface leading to poor adhesion and peeling.

However paint on metal roofs often peels or rusts in which case it is time to repaint it. If you are preparing to paint a rusted galvanized metal roof pay special attention to surface preparation or you will have a recurrence of rust and or flaking.