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.
Pressure Washing - The safest and surest way to remove moss build up and mildew from patios, decks and walkways is to simply pressure wash the surface. The true downside to this is it will not kill or stop the moss from returning. However, it will clean the surface temporarily and without harmful chemicals.