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Roof Cleaning

Low-pressure soft wash treatment lifts black streaks (gloeocapsa magma) and moss from shingles without damage.

Those black streaks running down your shingles are gloeocapsa magma — a cyanobacteria that eats the limestone filler in asphalt shingles. Left alone, it shortens shingle life and voids some manufacturer warranties. High-pressure washing makes it worse by blasting off the protective granules. We fix it the right way.

Our low-pressure soft wash uses a professional-grade biocide mix applied from the peak down. It kills the organism, lifts the staining, and lets rain rinse away the residue over the following weeks — no granule loss, no shingle damage.

What's included

  • Asphalt shingle roofs (3-tab and architectural)
  • Black streak (gloeocapsa magma) removal
  • Moss and lichen treatment
  • Ridge caps and valley areas
  • Gutters rinsed as part of the service

Results continue improving for 2–4 weeks after treatment as rain finishes the rinse. Most roofs stay clean for 2–3 years.

Before & after

Real result from a recent job.

Roof soft wash before and after — dark algae-streaked shingles on the left, clean restored shingles on the right

Ready for a free quote in Washington Court House, OH?

Fast response. No-pressure pricing. Locally owned.