How To Clean A Roof Safely. Roof or wall tiles are often covered with moss or algae if not clean for more than 3 months. As a more permanent solution, you can install a strip of zinc or copper that runs horizontally underneath your roof’s shingles.
Use a pressure washer, which can loosen shingles and seriously damage your roof. Though you will still have to clean out the debris from it, it makes the job much easier. Some may believe that you can clean your roof simply with a pressure washer, and while that would probably work theoretically, using a pressure washer for roof cleaning is the “kiss of death” for the integrity of that 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.
Learn what causes black streaks, moss, lichen and mold on roof shingles plus read reviews of. Get results from 6 engines at once To distribute the green cleaner on your roof safely, start at the furthest point of your roof and work back towards your ladder. Mix the product with water for a 1:7 dilution ratio (a gallon covers about 700 to 900 sq.