Blog · 6 min read
Why Roof Cleaning Matters (More Than You Think)
Those black streaks aren't just ugly — they're actively shortening the life of your shingles.
What Those Black Streaks Actually Are
Gloeocapsa magma is a cyanobacteria that thrives on asphalt shingles. It feeds on the limestone filler in modern shingles, breaking down the material and shortening the roof's lifespan.
The Real Cost of Ignoring Roof Streaks
Untreated roof algae can shorten shingle life by 5–10 years, void manufacturer warranties, and raise cooling bills by trapping heat.
Why Soft Washing Is the Only Correct Method
The Asphalt Roofing Manufacturers Association (ARMA) explicitly recommends soft washing with sodium hypochlorite. Pressure washing voids most shingle warranties.
What to Expect During a Roof Wash
A professional roof soft wash takes 1–2 hours on most homes, uses zero pressure, and includes landscape protection. Results are visible immediately.