Soft wash roof cleaning for the shaded, marsh-side roofs around Okatie, where algae comes back faster than almost anywhere else we work.
Okatie has the wettest-feeling roofs in our service area, and the reason is the combination rather than any one thing. The lots are wooded, so large parts of most roofs sit under canopy and never get a full day of sun. The marsh and the rivers keep humidity high well into the evening. Put those together and a north-facing slope can stay damp around the clock for most of the summer.
Gloeocapsa magma, the algae behind the black streaks, wants exactly that. It is why roofs out here often look worse than roofs of the same age in open subdivisions a few miles inland, and why owners of relatively new houses are surprised to be dealing with it at all. It is not a sign the roof is failing. It is a sign the roof is in the shade.
We are straight with Okatie customers about the cycle. A soft wash kills the growth at the root, so the roof comes back clean and stays clean, but the conditions that grew it are still there the day after we leave. Under heavy canopy that usually means closer to two years between cleanings rather than three.
Two things stretch the interval. Clearing the debris out of the valleys matters more here than anywhere, because a wet mat of leaves and needles is a nursery for the next bloom. And trimming branches that overhang the roof, which is not our work but is worth doing, buys more dry hours per day than any chemistry can.
High pressure takes the streaks off and takes the protective granules with them. Those granules are the shingle's weather layer and they do not come back. Most manufacturers void the warranty if a roof has been pressure washed, which is worth knowing given how much of Okatie's housing stock is recent enough to still be covered.
We apply a low-pressure algae-killing solution, let it work, and rinse gently. We pre-wet and rinse the landscaping throughout, which matters on wooded lots where the planting at the drip line is often mature and not easily replaced.
Closer to every two years than three for most, which is more often than we would tell a customer on an open lot. Heavy canopy and marsh humidity keep the shingles damp, and damp is what the algae needs. If the streaks are visibly back, that is the signal.
No, and it is common out here. Algae is about moisture and shade rather than age or build quality. A newer roof under canopy near the marsh will streak sooner than an older roof sitting in open sun.
Yes, and it can void the shingle warranty. It strips the granules that protect the shingle. We only soft wash roofs and will put the method in writing if your builder warranty is still active.
Yes, all of them, along with the homes and small farms along the Okatie Highway in between. Tell us which community you are in when you call, since a few have their own access or scheduling requirements.
Yes, that is part of the job rather than an extra. On wooded Okatie lots it is arguably the more important half, because leaving a wet mat of leaves up there just starts the next bloom.
Low-pressure cleaning for siding, stucco and Hardie.
Debris clearing, downspout flushing and gutter brightening.
Everything we clean around Okatie and the river communities.
Free, no-obligation roof cleaning estimates across Okatie and the river communities.
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