Paintimg Old Metal Roof

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.

Paintimg old metal roof.

Use a paint scraper or a putty knife to scrape away loose paint. Galvanized roofs require the use of a different paint than what is used on terne metal. Acrylic latex paint is a good choice for bare metal roofs and to go over old paint. Oil based alkyd paint may also be used with an appropriate galvanized metal primer.

Wash the roof with a power. Choose a product designed for use on outdoor metal applications. I used three coats. Painted metal roofs come with a baked on factory finish and you can re coat these as well.

Removing the old paint 1. Remove patches of rust if you find them. Apply the primer with a roller using a paint brush to access. 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.

There are several different types of metals used in roofing applications. The first was their basic coating hp 1000 followed by two coats of hp 5000. 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.

As you scrape away old paint you ll get a close look at your entire roof. Terne is best painted with an oil based paint. 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. 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.

I used acrymax from preservation products. For a new and unpainted roof allow it to weather for six months before painting it. 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. There is no other company in the industry that has an equal color selection or authenticity of paint prints.

A topcoat doesn t eliminate the need for a good primer the topcoat seals your paint but the primer makes the paint adhere properly. Welcome to painted rusted roofing western states metal roofing is the leader in painted metal roofing products that look old and weathered. 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. Coat the entire metal roof surface with a rust inhibiting primer.