Elastomeric roof coatings are applied thicker than paint. These elastomeric roof coatings are used for roof leaks repair. An elastomeric roof coating seal roof leaks, saves and extends the life of old roofs. Elastomeric roof coatings are an excellent choice for roof leaks repair.
How to Clean Algae and Moss from a Roof. Apply the bleach solution with a garden sprayer. Let it stand on the surface for about 20 minutes, then rinse it off with spray from a garden hose. Don't let the bleach solution stand on the roof for more than 30 minutes or so without rinsing.
Pour the bleach mixture into the hand-pumped garden sprayer; replace the lid on the sprayer, securing the liquid. Climb the ladder carefully and spray the bleach mixture onto the affected area of the roof, saturating it thoroughly. Allow the mixture to remain on the asphalt shingles for 15 to 20 minutes. Rinse the shingles with a garden hose on a low-pressure sprayer setting to remove the bleach-and-water solution. Allow the roof to dry. Examine the roof for further creosote staining.