How To Clean A Roof Safely. Use a pressure washer, which can loosen shingles and seriously damage your roof. The granules will start to come off and will end up in the gutters, which can and does happen normally with age, but speeding.
Finally, thoroughly rinse off the solution with plain water. Follow these three straightforward steps to. Use a gutter guard if the gutter easily fills with debris.
Before applying the cleaner, spray the roof with water to cool it down.
If the gutter is not clean for a while, you can clean it before the roof cleaning. If the stain is still there, try the next method. Learn what causes black streaks, moss, lichen and mold on roof shingles plus read reviews of. Slate can require some maintenance as it ages.