How To Paint Your Metal Roof

Before applying a new coat of paint you need to get rid of any oil debris and dirt buildup that already exists.

How to paint your metal roof. For a new and unpainted roof allow it to weather for six months before painting it. Sweep away any powder left by the process and you are ready for primer and paint. Here s how to make sure you make the right calls while addin. Galvanized roofs require the use of a different paint than what is used on terne metal.

The first trick to corrugated metal roof is to not paint a dirty metal roof. Just as with pairing your paint to match a galvanized or non galvanized roof the sealant must be compatible with the type of paint in order to be effective. Choose a color that goes with the. Coat the entire metal roof surface with a rust inhibiting primer.

Use a power washer or brush with a mild cleaner to remove grime and debris. Apply the primer with a roller using a paint brush to access. Terne is best painted with an oil based paint. Choose a product designed for use on outdoor metal applications.

Some historical homes have terne metal roofs and these need to be. Your paint will be unsalvageable if it is applied without sealant. 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. Painted metal roofs come with a baked on factory finish and you can re coat these as well.

How to paint a galvanized metal roof with sherwin williams roof preparation. Check with your homeowner s association for any painting regulations. If no rust is present on the steel a simple pressure washing may be adequate to clean the surface of the roof. Type of paint to use.

Ospho will etch the surface of the metal and convert the iron oxide rust into iron phosphate an inert substance that turns the metal black. After successfully painting your metal roof and everything looks great it is your job to keep it that way. Step 2 maintain the roof.