Paintimg Old Metal Roof

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.

Paintimg old metal roof.

Coat the entire metal roof surface with a rust inhibiting primer. Choose a product designed for use on outdoor metal applications. Press the scraper or knife firmly against the paint. 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.

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. Removing the old paint 1. Oil based alkyd paint may also be used with an appropriate galvanized metal primer. I used acrymax from preservation products.

I used three coats. 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. Wash the roof with a power. There is no other company in the industry that has an equal color selection or authenticity of paint prints.

Remove patches of rust if you find them. Apply the primer with a roller using a paint brush to access. 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. Use a paint scraper or a putty knife to scrape away loose paint.

A topcoat doesn t eliminate the need for a good primer the topcoat seals your paint but the primer makes the paint adhere properly. The first was their basic coating hp 1000 followed by two coats of hp 5000. Acrylic latex paint is a good choice for bare metal roofs and to go over old paint. How to paint a galvanized metal roof with sherwin williams roof preparation.

Type of paint to use. Painted metal roofs come with a baked on factory finish and you can re coat these as well. Terne is best painted with an oil based paint. As you scrape away old paint you ll get a close look at your entire roof.

For a new and unpainted roof allow it to weather for six months before painting it. There are several different types of metals used in roofing applications. Welcome to painted rusted roofing western states metal roofing is the leader in painted metal roofing products that look old and weathered. Galvanized roofs require the use of a different paint than what is used on terne metal.