Painting Galvanised Iron Roof

Begin at the far side of the roof.

Painting galvanised iron roof.

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. However paint on metal roofs often peels or rusts in which case it is time to repaint it. 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. Before applying a new coat of paint you need to get rid of any oil debris and dirt buildup that already exists.

Painted metal roofs come with a baked on factory finish and you can re coat these as well as paint bare metal roofing with acrylic latex paint. Common household products like comet mineral spirits and chlorine bleach can all be used to prepare galvanized steel for painting. Use your putty knife or scraper to scrape off any peeling paint or accumulated rust on your metal roof. Get off as much paint or rust as you can.

Apply the metal etching primer to the rusted galvanized metal roof using the roller. You can use a dedicated galvanised metal paint or you can use a suitable primer. 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. If you re not sure what kind of roof you have ask a professional roofer to inspect it before you paint it.

Roll in a vertical motion working backward toward the extension ladder. Choose a type of paint you may or may not need to prime the surface depending on the type of paint you choose. You ll also need to purchase a primer designed for metal roofs. A paint which will stick well like self etching primer is good and it s necessary if you have real rust.

Use a power washer or brush with a mild cleaner to remove grime and debris. Step 2 maintain the roof. Wait three hours for the metal to dry. When painting galvanised steel you have to be aware that some primers and metal paints are not suitable.

The acidity of the vinegar will react with the metal treating the surface to promote paint adhesion. You can also use oil based alkyd paint but. The first trick to corrugated metal roof is to not paint a dirty metal roof.