Galvanized Metal Roofing Paint

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.

Galvanized metal roofing paint.

Painting a galvanized steel panel roof is not all that different from painting other metal objects but you must ensure that the surface is perfectly clean before beginning the application process. If you re not sure what kind of roof you have ask a professional roofer to inspect it before you paint it. Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal. Avoid using alkyd based paints such as spray paint on galvanized steel.

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. Unfortunately over time this coating can fail leading to minor rust outbreaks. The enamels in alkyd paints can react with the slick zinc finish on a galvanized steel surface leading to poor adhesion and peeling. For the most dependable results look for paints that are formulated specifically to bond to galvanized steel.

To paint a metal roof you ll need to use an oil based paint if you have a terne metal roof or an acrylic based paint if you have a galvanized metal roof. However paint on metal roofs often peels or rusts in which case it is time to repaint it.