How To Seal A Rusty Metal Roof

We then applied a semi gloss lacquer 3 coats interior application using a deft product.

How to seal a rusty metal roof.

Apply the metal etching primer to the rusted galvanized metal roof using the roller. However badly rusted metal areas need more prep work and possibly a special primer. If your roof is aluminum you shouldn t. I have a 20 gauge cold rolled steel that has been cleaned w soap water and then we applied a solution of water acid to speed up the rusting process.

This is a very important repair that could save your roof. On raw steel or rusted metal 3 to 4 coats are recommended because the metal is very porous. Stir thoroughly before applying it with a soft bristled roofing brush or paint roller. Apply a solution of hydrogen peroxide vinegar and salt.

Wait three hours for the metal to dry. On most metals two coats of everbrite clear protective coating are recommended. Scrape any cracked or peeling paint from the roof before you repaint it or the new paint coating won t adhere properly. If any panel is extensively damaged replace it with a.

As it dries the acid of the vinegar will begin to corrode the surface of the metal and you will start to see rust appear. Allow to dry for around eight hours then apply a second coat. Rust usually won t eat holes in an aluminum roof but it can discolor the metal. Everbrite will seal moisture out of rusted metal to help prevent further corrosion and will prevent rust stains.

It can be used alone as a base coat on bare metal and will fix the rust while preserving the appearance. The seal should last a couple of years with the bonus benefit of adding a layer of insulation to your mobile home. Begin at the far side of the roof. Scrub partially rusted metal areas with a wire brush to remove flakes and powdery surface rust then prime with a rust inhibitive primer.

Once done you can paint over rust. Roll in a vertical motion working backward toward the extension ladder. Start with a wire brush photo 1.