Can You Pressure Wash Moss Off a Shingle Roof Safely?
No, you should not pressure wash moss off an asphalt shingle roof. High-pressure water can dislodge protective ceramic granules, damage the asphalt coating, force water beneath shingle laps, and create leaks. The safer method is low-pressure chemical treatment, followed by natural weathering or a gentle garden-hose rinse when the product label permits it. Can You […]