Roof Washing & Soft Wash Roof Cleaning in Charleston, SC

Soft washing is the only safe way to clean a roof because it removes growth without the force that destroys roofing. We use pressure under 100 PSI paired with biodegradable cleaning solutions that kill algae, moss, and lichen at the root. High-pressure washing — the kind that works on concrete — lifts shingles, cracks tiles, strips the protective granules off asphalt, drives water under the roofing, and can void your manufacturer warranty.

Those dark streaks running down Charleston roofs are Gloeocapsa magma, a blue-green algae that thrives in the Lowcountry's heat and humidity and feeds on the limestone filler in asphalt shingles. Moss and lichen add another layer of trouble, holding moisture against the roof and slowly breaking down the surface. Simply rinsing the surface removes the visible layer, but the organism survives and the stains return within months.

Because soft washing kills the growth rather than blasting it away, the results last far longer — typically 18 to 36 months in our climate. It also protects the roof itself: a clean, algae-free roof holds its reflectivity, sheds water properly, and lasts years longer than one left to degrade under a mat of organic growth.