Painting A Rusty Galvanized Metal Roof

Choose a type of paint you may or may not need to prime the surface depending on the type of paint you choose.

Painting a rusty galvanized metal roof.

The acidity of the vinegar will react with the metal treating the surface to promote paint adhesion. Wait for the roof to dry completely before proceeding. Instructions on how to paint over rust. Wash the galvanized metal using a pressure washer.

Water blast clean the prepared surface to remove all remaining dust and contaminants leaving a clean dry surface. 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. You can wash it by hand using a sprayer attachment to a garden hose or a power washer. All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface.

Allow the first coat to dry completely before applying a second coat. You can also use oil based alkyd paint but. A power washer may remove more of the rust for you. After noxyde is applied.

Link to product info on amazon first might be a good idea. Paint over the primer with a water based metal roof paint that contains rust inhibitors. Wash the metal roof using trisodium phosphate in water at a ratio of 1 cup tsp per 1 gallon water. Access the rusted galvanized metal roof using an extension ladder.

After you ve sanded away the rust apply 2 coats of a rust inhibiting primer to prevent rust building up underneath the paint. Wait a full 24 hours for the roof to dry. Scrape rust from the roof using a wire. Then apply 2 coats of a water based enamel acrylic paint to bring out the color.

Hand or power tool clean the rusty metal to remove any flaky rust and unsound paint.