Those black streaks spreading across your asphalt shingles aren't dirt — they're a living organism destroying your roof. We eliminate them safely, without pressure washing, and guarantee results for 3 years.
The vast majority of Columbus homes have asphalt shingle roofs — and most of those roofs will eventually develop the dark streaks homeowners mistake for dirt or an aging roof.
The real culprit is Gloeocapsa Magma — a type of cyanobacteria that feeds on the crushed limestone filler in asphalt shingles. Ohio's humid summers create ideal conditions for it to thrive and spread. Left untreated, it accelerates granule loss, traps moisture, and can cut your roof's lifespan in half.
Our cleaning system avoids destructive high-pressure washing. Pressure washing can affect shingle warranty coverage by removing granules and damaging the asphalt and fiberglass matting. Our process cleans very effectively while following roof-specific procedures. We have applied our process on over 1,500 roofs, using roof- and property-protection procedures on every project.
We respond within minutes. No obligation.
We fly a drone to photograph every inch of your shingle roof, mapping all algae growth, moss patches, and problem areas. You receive the photos and a detailed estimate by email before we start any work.
We apply our safe and gentle biodegradable algaecide solution from a ladder at low pressure. The solution penetrates and kills Gloeocapsa Magma and all bio-growth at the cellular level. No one walks on your roof.
We fly the drone again after treatment to confirm 100% coverage and send you before-and-after photos. Your quality commitment begins the day we finish.
Our cleaning system avoids destructive high-pressure washing. Pressure washing can affect shingle warranty coverage by removing granules and damaging the asphalt and fiberglass matting. We follow roof-specific procedures on every project.
Every job starts with a drone flight. You see exactly what we see before we start — no surprises, no upsells, no guesswork. We document everything with photos.
Columbus homeowners trust Forza because we do the job right. Our 5.0 Google rating across 278 reviews speaks for itself. We stand behind every job with a quality commitment.
"This is a well-run and needed company. Our roof is in the midlife phase. There were two or three mossy areas and some darker streaks. They used a drone to identify the needs of the roof. The moss is now truly dying out and the roof looks like a new one. Job well done!"
"Dwayne was very professional and responsive. The black streaks on our shingles are completely gone. He explained exactly what he was doing and why, and the quality commitment gave us total peace of mind. Highly recommend Forza to any Columbus homeowner."
"We had terrible black streaks covering our entire north-facing roof. Forza came out with their drone, showed us exactly what was going on, and cleaned the whole thing in one day. It looks brand new — like we got a new roof. The 3-year guarantee sealed the deal for us. Highly recommend!"
See the dramatic transformation Forza delivers on asphalt shingle roofs across Columbus.
Before
After
Gloeocapsa Magma algae eliminated with our no-pressure treatment process.
Our shingle roof cleaning process in action — no pressure, no damage, just results.
Helpful articles from our team to keep your roof in top shape.
Get a free drone assessment and no-obligation estimate. We serve Columbus, Dublin, Westerville, Hilliard, Upper Arlington, and all of Central Ohio.
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