Identifying Roof Stains (Black Streaks & Mold)

In San Diego’s coastal climate, those unsightly black streaks on your asphalt shingles or flat tiles aren't just "dirt"—it’s a hardy species of algae called Gloeocapsa Magma. This organism feeds on the limestone filler in your shingles and thrives in our morning marine layer. Left untreated, it turns into a thick layer of organic matter that traps moisture and breaks down your roof's structural integrity.

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The Nomadic Solution:

Whether you have the classic San Diego clay tile that grows green mold or flat tiles covered in black streaks, we can restore them. We don't just "wash" the roof; we treat it with manufacturer-approved solutions that kill the algae at the root without damaging the delicate tiles or shingles.