Painting A Rusty Galvanized Metal Roof

After you ve sanded away the rust apply 2 coats of a rust inhibiting primer to prevent rust building up underneath the paint.

Painting a rusty galvanized metal roof.

Hand or power tool clean the rusty metal to remove any flaky rust and unsound paint. Wait a full 24 hours for the roof to dry. Paint over the primer with a water based metal roof paint that contains rust inhibitors. Allow the first coat to dry completely before applying a second coat.

Link to product info on amazon first might be a good idea. 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. After noxyde is applied. Wash the galvanized metal using a pressure washer.

The acidity of the vinegar will react with the metal treating the surface to promote paint adhesion. All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface. If it s a newer roof the galvanizing can definitely cause you adhesion problems. You can also use oil based alkyd paint but.

Water blast clean the prepared surface to remove all remaining dust and contaminants leaving a clean dry surface. Wash the metal roof using trisodium phosphate in water at a ratio of 1 cup tsp per 1 gallon water. Wait for the roof to dry completely before proceeding. If it s quite old and rusty any primer for metal followed by any outdoor paint designed for metal is probably okay although a rust converter affil.

Access the rusted galvanized metal roof using an extension ladder. You can wash it by hand using a sprayer attachment to a garden hose or a power washer. Choose a type of paint you may or may not need to prime the surface depending on the type of paint you choose. Then apply 2 coats of a water based enamel acrylic paint to bring out the color.

Scrape rust from the roof using a wire.