Painting A Rusty Galvanized Metal Roof

Wait for the roof to dry completely before proceeding.

Painting a rusty galvanized metal roof.

Then apply 2 coats of a water based enamel acrylic paint to bring out the color. Wash the metal roof using trisodium phosphate in water at a ratio of 1 cup tsp per 1 gallon water. After you ve sanded away the rust apply 2 coats of a rust inhibiting primer to prevent rust building up underneath the paint. Link to product info on amazon first might be a good idea.

The acidity of the vinegar will react with the metal treating the surface to promote paint adhesion. Wash the galvanized metal using a pressure washer. Access the rusted galvanized metal roof using an extension ladder. A power washer may remove more of the rust for you.

After noxyde is applied. Hand or power tool clean the rusty metal to remove any flaky rust and unsound paint. Instructions on how to paint over rust. You can also use oil based alkyd paint but.

All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface. 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. Scrape rust from the roof using a wire. Wait a full 24 hours for the roof to dry.

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. Choose a type of paint you may or may not need to prime the surface depending on the type of paint you choose. How to prepare a rusted galvanized metal roof for painting step 1.

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