Moss, Algae, and the Damage Homeowners Underestimate
Moss is not a cosmetic problem on a Barberton roof. It acts like a sponge, holding moisture against the shingle mat, and during freeze-thaw cycles it expands and cracks the shingle edges. Algae, the black streaks, feed on the limestone filler in the shingle, stripping granules, reducing UV protection, and shortening the roof’s service life by 3-5 years. Routine roof cleaning is an essential preventive maintenance step to control moss growth and organic debris, helping extend your roof’s lifespan and maintain curb appeal. The worst thing you can do is hire someone to power wash the roof. High-pressure water forces moisture under the courses, accelerates granule loss, and voids most manufacturer warranties. Using specialized cleaning solutions rather than high-pressure washing can help prevent damage to shingle granules during moss treatment. Valiant brush-cleans moss, treats with a non-corrosive soap, and installs zinc strips at the ridge so the roof self-treats for years.


















