Painting A Rusty Galvanized Metal Roof

Wash the galvanized metal using a pressure washer.

Painting a rusty galvanized metal roof.

Wait for the roof to dry completely before proceeding. After noxyde is applied. 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. You can also use oil based alkyd paint but.

Wash the metal roof using trisodium phosphate in water at a ratio of 1 cup tsp per 1 gallon water. All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface. After you ve sanded away the rust apply 2 coats of a rust inhibiting primer to prevent rust building up underneath the paint. Allow the first coat to dry completely before applying a second coat.

If it s a newer roof the galvanizing can definitely cause you adhesion problems. Then apply 2 coats of a water based enamel acrylic paint to bring out the color. How to prepare a rusted galvanized metal roof for painting step 1. A power washer may remove more of the rust for you.

Access the rusted galvanized metal roof using an extension ladder. Link to product info on amazon first might be a good idea. 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. The acidity of the vinegar will react with the metal treating the surface to promote paint adhesion.

Scrape rust from the roof using a wire. Hand or power tool clean the rusty metal to remove any flaky rust and unsound paint. Paint over the primer with a water based metal roof paint that contains rust inhibitors. Wait a full 24 hours for the roof to dry.

You can wash it by hand using a sprayer attachment to a garden hose or a power washer.