Those black streaks on a roof are algae, not dirt, and moss buildup can work its way under shingles over time.
Those black streaks on a roof are algae, not dirt, and moss buildup can work its way under shingles over time. We use low pressure roof cleaning and treatment methods matched to the roofing material, rather than high pressure blasting, to remove algae and moss without damaging shingles.
High pressure isn't appropriate for most roofing materials. We use low pressure roof cleaning and treatment methods matched to the material instead.
Those streaks are typically algae growth, not dirt, and they spread over time if left untreated.
Done with the right method and pressure for the material, no. That's why we don't treat a roof the same way we'd treat a driveway.
Call now for a free estimate anywhere on the South Shore.
Call (781) 588-2531