Roof Washing in Johns Creek
The black streaks running down an asphalt shingle roof are not dirt. They are gloeocapsa magma, a cyanobacteria that feeds on the limestone filler used in modern shingles. Left alone it spreads across the roof, holds moisture against the shingle and shortens the roof service life. On metal, tile and low-slope commercial roofs the same organic growth shows up as streaking and granule loss.
Johns Creek office and medical corridors along Medlock Bridge and State Bridge Road carry heavy daily traffic, and the mature tree canopy over those parking fields keeps shaded surfaces damp long enough for algae and mildew to establish. Roof washing is a soft wash performed from the ground and from ladders. We do not walk the roof surface and we do not apply pressure to the shingles. A low-pressure, roof-safe solution is applied to kill the organism at the root, then rinsed with plain water. Removing the growth this way protects the shingle rather than abrading it, and it does not void the manufacturer warranty the way pressure washing does.
Roof surfaces and components we treat:
- Asphalt shingle roofs
- Metal and standing-seam roofs
- Tile and slate, method-dependent
- Mansard and low-slope sections
- Vents, boots and flashing
- Gutters, downspouts and drip edges
- Class A office and medical buildings along Medlock Bridge Road
- HOA and amenity communities off Abbotts Bridge Road
For property managers a clean roof is also a documentation issue. Algae streaking is one of the first things an inspector, a lender or an architectural review committee photographs, and a roof that reads as neglected invites questions about everything under it.
Commercial Roof Cleaning
Johns Creek, GA
Commercial roofs are usually out of sight, which is exactly why they get deferred. But streaking and organic growth on a roof are visible from the parking lot, from the building across the street and from every drone photo a broker or lender takes. We clean commercial roofs with a roof-safe low-pressure method that removes the growth without disturbing the membrane or the flashing. In Johns Creek that usually means the office and medical buildings along the Medlock Bridge corridor, where entry plazas and parking fields are photographed by every prospective tenant.
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Multi-Family and Apartment Roof Washing
Johns Creek, GA
On an apartment community the roofs are the single largest visible surface, and algae streaking on the buildings facing the entrance sets the tone for the whole property. We treat each building with a roof-safe solution that kills the growth at the root, so the roof does not need re-cleaning every year, and we work building by building so no resident loses parking for long. Johns Creek amenity communities off Abbotts Bridge and Parsons Road are judged on their common areas, and the shaded ones need attention far more often than the open ones.
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