Paintimg Old Metal Roof

Oil based alkyd paint may also be used with an appropriate galvanized metal primer.

Paintimg old metal roof.

The first was their basic coating hp 1000 followed by two coats of hp 5000. There are several different types of metals used in roofing applications. Terne is best painted with an oil based paint. To prep metal for paint adhesion you must first clean it with soap and water remove light rust with a wire brush sand it with fine grain sandpaper and then in most cases prime.

Galvanized roofs require the use of a different paint than what is used on terne metal. I used acrymax from preservation products. Apply the primer with a roller using a paint brush to access. Press the scraper or knife firmly against the paint.

Welcome to painted rusted roofing western states metal roofing is the leader in painted metal roofing products that look old and weathered. A topcoat doesn t eliminate the need for a good primer the topcoat seals your paint but the primer makes the paint adhere properly. Metal roofs should be coated painted with a specially roof formulated acrylic latex which bonds tightly to metal and becomes a flexible coating 15 20 mils thick. Coat the entire metal roof surface with a rust inhibiting primer.

Type of paint to use. Use a paint scraper or a putty knife to scrape away loose paint. Acrylic latex paint is a good choice for bare metal roofs and to go over old paint. Painted metal roofs come with a baked on factory finish and you can re coat these as well.

I used three coats. Removing the old paint 1. 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. We have stunning colors that actually look like real patina d metal.

In fact even after painting a metal roof it is necessary to perform a cleanup washing down the roof with a mixture of bleach liquid detergents and water at least once every six months. As you scrape away old paint you ll get a close look at your entire roof. Remove patches of rust if you find them. The roof should be swept clean of debris every few weeks to prevent small pests from finding a home in leaves dead branches or long lost golf balls.

Choose a product designed for use on outdoor metal applications. The first step in painting any metal roof is determining what substrate and existing coatings you are dealing with. How to paint a galvanized metal roof with sherwin williams roof preparation. This is a huge factor in what coating system you ll want to use and is critical to determining how to prepare the existing surface.