How To Seal A Rusty Metal Roof

You can buy rubber based roof coating from most major hardware stores.

How to seal a rusty metal roof. Allow to dry for around eight hours then apply a second coat. Everbrite will seal moisture out of rusted metal to help prevent further corrosion and will prevent rust stains. Rust usually won t eat holes in an aluminum roof but it can discolor the metal. Use a zinc based primer on any areas where rust has been scrubbed or sanded away allowing it to dry before applying the protective roof coating or seal.

Most of the time not every speck of rust needs to be removed before recoating a rusted metal roof. If a rusty roof exists a rust primer must be applied prior to the roof coating. Scrape any cracked or peeling paint from the roof before you repaint it or the new paint coating won t adhere properly. Apply a thick layer of urethane roofing cement around.

Regardless of the coating used the coating protects the sealing materials and extends the life of the metal roof. Once the rust is scraped away and the area is rinsed cut two pieces of metal repair mesh at least 1 inch larger than the area to be patched. The seal should last a couple of years with the bonus benefit of adding a layer of insulation to your mobile home. If any panel is extensively damaged replace it with a.

Stir thoroughly before applying it with a soft bristled roofing brush or paint roller. Elastomeric roof coatings typically have a higher level of aesthetic appeal than an aluminum roof coating. The water or sand will also remove dirt mildew and flaking paint from the surface. On raw steel or rusted metal 3 to 4 coats are recommended because the metal is very porous.