How To Paint Galvanized Roofing

The vinegar is a mild acid which acts to etch the galvanized coating so the paint will stick.

How to paint galvanized roofing.

Find either oil based or acrylic based paint at your local home improvement store. This will get rid of any mildew or algae. Apply two topcoats of paint on top of the primer. You can also use oil based alkyd paint but you need to first apply an undercoat of a galvanized metal primer such as sherwin williams pro industrial pro cryl universal acrylic primer.

Wait until the solution dries then rinse it off the roof with water. Galvanized metal roofs are usually painted with acrylic based paint. Scrape rust from the roof using a wire brush. Mix 1 cup of chlorinated bleach with 4 cups of warm water and 1 cup of trisodium phosphate a cleaning agent.

Place a ladder next to the structure and climb. Access the rusted galvanized metal roof using an extension ladder. How to prepare a rusted galvanized metal roof for painting. Wait until a day when no rain is expected and the temperature is cool.

Identify rusty areas or flaking paint. You can apply something like ospho affil. Sweep off the roof using a broom to remove all pine straw leaves and surface dirt. A paint which will stick well like self etching primer is good and it s necessary if you have real rust.

How to paint galvanized steel roofing panels 1. To ensure that you know what kind of metal your roof is made out of and what kind of paint you should use ask a professional roofer to inspect your home. Prime the surface with a primer made for metal. Using your exterior metal acrylic based paint using the same paint tray that has been emptied of any remaining primer begin to apply the paint with a roller directly onto the galvanized steel roof panels in the same order you applied the primer.

Wait a full 24 hours for the roof to dry. Wash the galvanized metal using a pressure washer. Be sure to cover the entire surface so that you cannot see any primer left.