SoftWashing roofs is the preferred method when it comes to cleaning a roof. It is the most effective and efficient way to kill and remove all organic growth such as mold, mildew, and algae. Never use a pressure washer on a roof. Any pressure which exceeds 100 psi is very likely to cause irreversible damage to your roof. To learn more about our services visit us at https://www.xcellentxteriors.com