Roof Coating
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Covering a roof with a protective layer is a common procedure for some houses, mobile homes and recreational vehicles. Roof coating seals the roof and prevents any leaks, so it lowers your overall energy costs. Keeping a few things in mind can make this DIY project easier to accomplish.
Properly Prepare the Roof
Clean the roof thoroughly with a large broom to remove old leaves, branches and other debris. Use smaller wire brushes, a putty knife or sand paper to remove old roof coating. Make sure you do not leave any loose or flaking coating on the roof. Check the roof for any visible leaks. Look carefully around any seams, vents, or air conditioners. Get rid of any mildew buildup using a solution of water and chlorine. Use a pressure washer, if you have one and are sure there are no leaks, or use a garden hose to clean off the roof. Repair any holes or splits in the roof. Cover the usual leakage areas--such as roof seams, flashing, vents and other protrusions--with patching cement. Cover areas where water ponds or other problem parts with primer. Allow the roof to dry thoroughly.
Use the Best Roof Coating For Your Roof
Depending on your type of roof, find the best product for it. Elastomeric roof coatings are commonly used on metal, concrete, aged aluminum, brick, foam and flat & barrel cement tile. These are the most common roof types coated. Roof coating can be purchased at hardware stores in five-gallon containers at various prices. Check for warranty information or life of product. The typical gray and white coatings will reflect the sunlight, keeping the inside cooler in the summer. Find the correct type of roof coating for your specific roof. Read the label to make sure you get enough for two full coatings.
Apply Roof Coating Correctly
Plan your project ahead of time, making sure you have several hours of daylight and good weather. Study the directions on the roof coating container. Use a long-handled, soft roof rolling brush to apply a thin layer evenly on the roof in small sections. Start at one end of the roof and slowly work toward the other end, and make sure you have a way to get down there. Do not overcoat or undercoat any areas. Allow the coating to dry thoroughly (about four to six hours) and then apply a second coat.
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