The only manufacturer-approved way to clean asphalt shingles. Low pressure, professional biocides, results that last 2β5 years.
The dark stains you see on your roof aren't dirt β they're a cyanobacteria called Gloeocapsa magma. This living organism feeds on the limestone filler in asphalt shingles, degrading them over time and shortening roof life by years.
We use the ARMA (Asphalt Roofing Manufacturers Association) recommended soft-wash method: low-pressure application of a diluted sodium hypochlorite solution that kills algae, moss, and lichen at the root without touching the shingles with high pressure.
Gloeocapsa magma β the most common roof staining in the Southeast. Thrives in Charlotte's humid climate. Kills shingle granules from the inside. Our treatment kills it completely.
Moss holds moisture against shingles and causes them to curl and lift. Must be treated before it causes structural damage. Our biocide kills moss at root level.
The most stubborn roof growth β lichen bonds to shingle surface with root-like structures. Requires our professional-concentration treatment plus dwell time for complete removal.
General algae growth that creates green, brown, and yellow discoloration across the roof. Especially common on north-facing and shaded slopes.
High-pressure washing physically blasts off shingle granules β the protective coating that shields the asphalt from UV rays. Each granule lost is permanent and shortens roof life. Most shingle warranties explicitly void coverage if high-pressure washing is used. We never touch your roof with high pressure.