This can adversely affect the paint sticking. What Paint to Choose for Metal Roof?Ĭorrugated metal roofs are typically made from galvanized metal (layered with zinc to reduce corrosion). Let the primer dry to touch, then apply the paint evenly with a paintbrush, roller, or airless paint sprayer.Īllow the paint to dry for at least an hour and then recoat the roofing material for a durable finish. Start by applying a thick coat of Rust-Oleum High-Performance galvanized metal primer with a specialty paintbrush or a paint roller that’s designed for corrugated roof panels.Īpply the primer evenly to the entire surface of your metal roof, including the areas you have repaired.
Once you have repaired the holes, cracks, and gaps in your old rusted metal roofing material, you can now put the primer and paint. The goal is to cover the area so that no water can penetrate. Once cured, apply another coat of roof cement over the mesh patches and be sure that all of it is adequately covered. You’ll want to do this for every hole in the corrugated roof and then let the cement cure for at least two hours or as long as the manufacturer’s label states.
Rust roofs Patch#
Once in place, spread another layer of cement over the mesh patch and then lay the second piece of mesh patch over the cement. This will mean bending the patch as you put it into place to match the shape of the metal. Take one piece of acrylic mesh and press it into the roof cement over the hole. If you do not have acrylic mesh, you can use the same type of metal as the corrugated roof. Once the cement is in place, cut two pieces of acrylic mesh that is at least one inch wider than the size of the hole. Spread the cement around until you have an even coat that extends at least one inch past the perimeter of the hole.īe sure to wear gloves as you do not want the cement to come into contact with your skin. This is usually made from urethane and comes with waterproof properties. Using a plastic putty knife, apply the roof cement to the hole’s edge. Step 4- Apply Roof Cement and Acrylic Mesh Since you’ll want to stop the formation of the rust in the tracks of your metal roofing after painting, spray the area with a thin coat of rust-inhibiting primer first to keep the metal intact.Īllow the primer to dry before applying the roof cement to the hole. Then, wipe the surface with a dry cloth to remove any flakes remaining. Scrub the area with the brush until you see the metal underneath. So, it would help if you started by scraping the area with a wire brush. In this step, the goal is to eradicate the rust.
Wait for at least an hour or two to dry the metal roof before you start with the next step. Then with a power washer, wash your entire roof to eliminate all the paint flakes and debris. You will need to do this gently, so you don’t damage the metal underneath. Step 2- Clean the RoofĪfter you have secured yourself, it’s time to get up there and perform some prepping job for your bare metal roof before painting.įirst, you will want to remove the old paint layer by scraping away the loose paint – use a putty knife or a paint scraper tool. To work in a safe environment, consider wearing non-slip shoes and a harness with a safety rope.ĭo not forget to anchor the rope securely to a nearby tree or any other part of your home. Maybe you can thank them later for their efforts by buying them a pizza and/or a beer on your next weekend. Working on your roof might involve dealing with power lines and high ladders that can be risky if you do it alone.įor DIYers, it’s good to get your friend or spouse’s help so that you can work safely. Once you know the benefits of repainting your metal roof, here is the step-by-step process you can follow… Step 1- Secure Yourself
Repairing and repainting your old metal roof with the color of your choice is the right thing to do which can extend the lifespan of your roofing. If left untreated, holes can also develop in the corrugated metal roof due to exposure to regular moisture. However, this coating can weather and become scratched so that rust can form and penetrate the metal sooner or later. Most of them are pretty strong and highly resistant to the elements simply because they are treated with a rust-inhibiting coating to prevent corrosion from occurring. Metal roofs are typically made from galvanized steel, copper, or aluminum.
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