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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. Roof cleaning - Wikipedia

    en.wikipedia.org/wiki/Roof_cleaning

    The Asphalt Roofing Manufacturers Association (ARMA) recommends using a 50/50 solution of household strength sodium hypochlorite (pool chlorine) and water to remove moss and algae. [5] The addition of zinc strips near the roof's peak may reduce the regrowth of algae and moss. Zinc sulfate can also be applied on an annual basis.

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

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

    An aerial photograph that allegedly showed "moss, mildew, algae, and mold" on their roof. But the picture, which appeared to be from Google Earth, showed "absolutely nothing!" Karen Hoover told ...

  5. Asphalt shingle - Wikipedia

    en.wikipedia.org/wiki/Asphalt_shingle

    Asphalt shingles on a home in Avalon, New Jersey. Two types of base materials are used to make asphalt shingles, organic and fiberglass.Both are made in a similar manner, with an asphalt-saturated base covered on one or both sides with asphalt or modified-asphalt, the exposed surface impregnated with slate, schist, quartz, vitrified brick, stone, [6] or ceramic granules, and the under-side ...

  6. ‘Bad way to be treated’: California couple got dropped by ...

    www.aol.com/finance/bad-way-treated-california...

    An aerial photograph from space, supposedly showing the roof, was used as justification. Liberty Mutual claimed the roof had moss, mildew and algae growth, but the Colemans insist the alleged ...

  7. Black sludge, invasive seaweed, toxic algae: Cape Cod pond ...

    www.aol.com/black-sludge-invasive-seaweed-toxic...

    Black sludge, invasive seaweed, toxic algae: Cape Cod pond, coastal waters get poor marks. Gannett. Heather McCarron, Cape Cod Times. January 20, 2024 at 5:12 AM.