Is Soft Washing or Pressure Washing Better for a Roof in Houston, TX?
Soft washing is generally the better method for cleaning asphalt shingle roofs in Houston, TX, because it removes algae and organic staining with cleaning solutions and low-pressure rinsing rather than potentially damaging high pressure. The Asphalt Roofing Manufacturers Association (ARMA) specifically advises against using pressure washers on asphalt shingles because high-pressure cleaning can cause granule…
