They both have their place when used correctly. The place for a pressure washer is on flat concrete or for paint prep. This is because a pressure washer will remove paint and heavy growth build up on concrete surfaces. A pressure washer uses surface erosion as the cleaning mechanism. A pressure washer should NEVER be used on a roof!
OPAL Industries Softwash uses technologically advanced solutions and equipment to rid your roof and walls of bacteria, mildew, and other microorganisms that create unsightly infestations. Our SoftWashing process kills this growth at the root level. This inhibits regrowth 4-6 times longer than pressure washing only. OPAL Industries SoftWashing uses a low pressure multi step, chemical process as the cleaning mechanism.