Some think a quick DIY clean is sufficient, but safety should come first

https://www.scribd.com/document/1035528486/Pattison-s-Evolution-Historic-Buildings-Parks-and-the-Birth-of-a-Local-Power-Washing-Boom-148792

Some think a quick DIY clean is sufficient, but safety should come first. Cypress Pro Wash uses high-end gear and a careful protocol to preserve your roof and your life.