How Do You Paint A Galvanized Metal Roof

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.

How do you paint a galvanized metal roof.

How to paint a galvanized metal roof with sherwin williams roof preparation. A paint which will stick well like self etching primer is good and it s necessary if you have real rust. You can still add a coat of paint to your galvanized metal surface as long as you have a few important household tools and you follow these simple steps. To ensure that you know what kind of metal your roof is made out of and what kind of paint you should use ask a professional roofer to inspect your home.

Galvanized roofs require the use of a different paint than what is used on terne metal. You can apply something like ospho affil. Galvanized metal roofs are usually painted with acrylic based paint. Terne is best painted with an oil based paint.

Type of paint to use. Find either oil based or acrylic based paint at your local home improvement store. This will get rid of any mildew or algae. Prime the surface with a primer made for metal.

Apply the metal etching primer to the rusted galvanized metal roof using the roller. Wait three hours for the metal to dry. Link to product info on amazon first just in the rusted areas if the rusted areas are scattered then paint the whole roof. The vinegar is a mild acid which acts to etch the galvanized coating so the paint will stick.

Wipe the galvanized surface down with white vinegar. Painted metal roofs come with a baked on factory finish and you can re coat these as well. For a new and unpainted roof allow it to weather for six months before painting it. Clean the surface the goal is to remove any dust dirt or other particulate buildup that could affect the texture of.

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 metal roofs for an added layer of protection. Begin at the far side of the roof. Wait until the solution dries then rinse it off the roof with water. Use your sponge or paint roller to apply this solution to your metal roof.