Painting Galvanized Iron Roof

Galvanized metal roofs are coated with a layer of zinc that inhibits rust.

Painting galvanized iron roof.

Paints that are made for galvanized surfaces will require less prep work and will adhere better than other kinds of paint. 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. Because of its smooth slick zinc coated finish galvanized steel can be tricky to paint. Galvanized roofs require the use of a different paint than what is used on terne metal.

Here s how to make sure you make the right calls while addin. If you re not sure what kind of roof you have ask a professional roofer to inspect it before you paint it. However paint on metal roofs often peels or rusts in which case it is time to repaint it. Painting metal roofing provides you with a number of steps and decisions throughout the process.

Terne is best painted with an oil based paint. You ll also need to purchase a primer designed for metal roofs. Do not use alkyd based paints or oil based primer. 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. How to paint galvanized steel. Go over the metal with a wire brush to remove any oxidation. Start by cleaning the.

One of my neighbors used an oil based paint as a primer since some of the metal was rusted and then covered the roof with one of the specially formulated roofing paints that is sold by calbar for use on old. Before you jump right into it it s critical to prep the nonstick surface so it can hold 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. If crawling around on a metal roof in the hot sun does.

Before painting galvanized metal such as drip strips around eaves or roof flashing take the following steps so the paint will adhere properly and not peel.