Roof Cleaning in Maplewood
The black streaks running down north-facing slopes all over Maplewood aren’t dirt. They’re algae feeding on the limestone filler inside the shingles, and the colony spreads a little farther every year. On the shadier streets, moss joins in, and moss does real damage: it wedges under shingle edges, lifts them, and wicks water against the roof for days after every rain.
Why We Never Pressure Wash Shingles
A pressure washer cleans a roof the way a belt sander cleans a table, fast and at the cost of the surface. Blasting strips the granules that protect the asphalt mat, ages a roof a decade in an afternoon, and voids most shingle warranties. Soft washing is the correct tool: low pressure, a detergent mix that kills algae and moss at the root, and a thorough rinse. The streaks fade, the granules stay, and the treatment holds for years.
While we’re up there, we can add zinc or copper strips at the ridge, which slows regrowth on slopes the trees keep shaded.
Cleaning slots neatly into a maintenance plan, and clogged runs below the streaks are a gutter repair conversation. The method is detailed on our roof cleaning page, with everything else we offer on the Maplewood page.
Get the streaks gone: (555) 123-4567.