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  2. Gloeocapsa magma - Wikipedia

    en.wikipedia.org/wiki/Gloeocapsa_magma

    This cyanobacteria causes substantial destruction to roofs causing shingle decay and loss of reflective power. Over time, Gloeocapsa magma breaks down the shingles by feeding off of the limestone granules embedded in the shingles. [citation needed] This decreases a roof's ability to reflect ultra-violet rays of light and shortens the life of ...

  3. An insurer dropped these San Francisco homeowners ... - AOL

    www.aol.com/finance/insurer-dropped-san...

    An insurer dropped these San Francisco homeowners because of ‘mold, algae’ found in aerial footage of roof — but inspector says it’s good for 20 more years. What to do if it happens to you.

  4. Jania (alga) - Wikipedia

    en.wikipedia.org/wiki/Jania_(alga)

    Jania is an articulated coralline algae characterized by having erect thalli with dichotomously-arranged branches composed of alternating segments of red or pink, calcified, cylindrical sections (intergeniculum) and white uncalcified sections (geniculum); that is attached to the substrate by small, stolon-like holdfasts.

  5. Roof cleaning - Wikipedia

    en.wikipedia.org/wiki/Roof_cleaning

    The roof cleaning of fiberglass shingles Streaking on a roof Roof cleaning being performed using a soft-wash system. Roof cleaning is the process of removing algae, [1] mold, mildew, lichen and moss from roofs. [2] Also cleaning oxidation on metal roofs. Cleaning can extend the duration of a roof's ability to function. [2]

  6. Porphyra - Wikipedia

    en.wikipedia.org/wiki/Porphyra

    Porphyra is a genus of coldwater seaweeds that grow in cold, shallow seawater.More specifically, it belongs to red algae phylum of laver species (from which comes laverbread), comprising approximately 70 species. [2]

  7. Staurastrum - Wikipedia

    en.wikipedia.org/wiki/Staurastrum

    Staurastrum is a large genus of desmids (Desmidiaceae), [1] a group of green algae closely related to the land plants (Embryophyta). [2] [3] Members of this genus are microscopic and found in freshwater habitats around the world. The name Staurastrum comes from the Greek roots stauron, meaning "cross", and astron, meaning "star". [4]