Old Painted Metal Roof
The paint should adhere to the prepainted metal surface.
Old painted metal roof. The great majority of the time the roof will have a previous coating on it. 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. How do i repaint a metal roof on an old house.
Unfortunately a painter is seldom blessed with the gift of a bare metal roof to work with. 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. Remove all rust using your wire brush or sandpaper. Apply a coat of primer to the entire roof.
Acrylic latex paint is a good choice for bare metal roofs and to go over old paint. If possible try to. 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. Photo b shows an area that has been scraped.
Avoid painting in the rain as this could wash your paint away. Applying the new paint 1. Galvanized roofs require the use of a different paint than what is used on terne metal. We have stunning colors that actually look like real patina d metal.
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. Scrape away any loose or flaking paint using your putty knife. Oil based alkyd paint may also be used with an appropriate galvanized metal primer. Painted metal roofs come with a baked on factory finish and you can re coat these as well as paint bare metal roofing with acrylic latex paint.
The roof was power washed and a metal putty knife was used to scrape the rust and old paint. It could even have multiple coats present. Wait at least an hour for. Use a paintbrush or a paint roller to spread the primer.
You can also use oil based alkyd paint but. There is no other company in the industry that has an equal color selection or authenticity of paint prints. Acrylic latex provides the best coverage on prepainted surfaces. Although it isn t recommended to use a metal implement to scrape the roof it was the only way to remove the loose rust and old paint.
A wire brush or sandpaper may help loosen tough areas. Choose a day with good weather. You need only one. Some old roofs have been found to have 30 40 layers of paint on them.
Use a brush roller or spray can depending on your preference or the size and shape of the metal object. Terne is best painted with an oil based paint.