Pressure washing service for customers
Soft washing is the only way to effectively remove this algae without damaging the shingles and voiding any warranty. The Asphalt Roofing Manufacturers Association recommends low-pressure detergent washing as the preferred method for cleaning asphalt roofs in order to prevent damage to the shingles. Pressure washing a roof, even at low pressure, can and will void your warranty and cause granular l...