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.
Moss's Effects. Moss itself is harmless. It does not produce any dangerous spores or fumes, it contains no poisons or irritants and it lacks the mass to physically damage any structures, including roof shingles.f a mold colony grows on your roof, the fungus can cause permanent damage. You can only ensure a mold-free roof by keeping the shingles free from excess moisture, and you can only free your roof of excess moisture by eliminating moisture-trapping organisms like moss.