How To Paint Rusted Corrugated Iron Roof

If your roof is painted but has bare patches from rust removal apply a primer to those areas too.

How to paint rusted corrugated iron roof.

The first trick to corrugated metal roof is to not paint a dirty metal roof. This will inhibit any more rust from spreading and will form a strong bond between the metal and the paint. Apply a generous amount of paint across the entire roof. Again work from your ladder as much as possible.

Before applying a new coat of paint you need to get rid of any oil debris and dirt buildup that already exists. You ll get the best results if you use brushes or rollers designed for a metal roof. Scrape rust from the roof using a wire brush. Use a power washer or brush with a mild cleaner to remove grime and debris.

Step 2 maintain the roof. Use a primer that is designed for metal and prevents rust. Access the rusted galvanized metal roof using an extension ladder. Apply a primer to the roof using a wider sponge roller brush or a paint sprayer.

Apply a coat of paint to the entire roof. If crawling around on a metal roof in the hot sun does not. Wash the galvanized metal using a pressure washer. Now that your roof is cleaned and primed you can start painting.

Allow the primer to cure according to package instructions before proceeding. If your roof is unpainted prime it with a metal primer. Let the roof dry out thoroughly before applying noxyde coating. 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. Instructions on how to paint over rust. Wash the brush or roller you used for the primer or get a new one. Apply the sherwin williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal.