
Royal Transformation · Elk Grove, CA
Roof Soft Washing
Roof Soft Washing — Elk Grove, CA
Black algae streaks and moss stained this Elk Grove asphalt shingle roof. Our shingle-safe soft-wash treatment removed the growth and restored a clean, uniform finish.
The Challenge
Black algae streaks ran down this Elk Grove asphalt shingle roof, feeding on the limestone filler in the shingles. The homeowner wanted them gone — without any high pressure that could strip granules.
Our Process
- 1Low-pressure application of a shingle-safe soft-wash treatment
- 2The treatment kills the algae and moss at the root
- 3Gentle rinse — never high pressure
- 4Debris cleared from the roof surface and gutters
Before & After

BeforeAfterThe black streaks disappeared and the roof returned to a clean, uniform finish. Because the algae was killed at the source, the roof will stay clean for years.
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Royal Driveway Cleaning LLC · Sacramento, CA · Northern California

