Is Pressure Washing Good for Roofs? Choose Soft Washing
No, traditional high-pressure washing is not good for most residential roofs. High pressure can remove asphalt-shingle granules, damage tile finishes, strip metal coatings, and drive water beneath flashing or seams. Professional roof cleaning usually uses soft washing: a chemical treatment with water and low-pressure rinsing, generally below 500 PSI. At a Glance Why Is High-Pressure […]
Pressure Washing Asphalt Shingles: Use Soft Wash
Pressure washing asphalt shingles is generally unsafe and should not be used for routine roof cleaning. High-pressure water can dislodge protective mineral granules, damage shingle edges, drive water beneath laps, and complicate warranty claims. For algae, moss, and lichen, roofing manufacturers and the Asphalt Roofing Manufacturers Association recommend a controlled chemical-cleaning method with minimal physical […]