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  2. Roof cleaning - Wikipedia

    en.wikipedia.org/wiki/Roof_cleaning

    One safe and effective means to clean a roof is an electric agricultural sprayer system, as originally developed in Florida, USA in the early 1990s. [6] The equipment is used to apply a cleaning solution (typically containing bleach) that kills the algae, bacteria, mold, mildew, moss, fungus and other organic organisms growing on the roof.

  3. Gloeocapsa magma - Wikipedia

    en.wikipedia.org/wiki/Gloeocapsa_magma

    These shingles hold moisture and organic "bacteria food" material longer (especially on the North-side in the Midwest of the USA) than the paper/asphalt/ceramic shingles of the 1980s. The bacteria are airborne. This cyanobacteria causes substantial destruction to roofs causing shingle decay and loss of reflective power.

  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. Algaecide - Wikipedia

    en.wikipedia.org/wiki/Algaecide

    Barley straw, in England, is placed in mesh bags and floated in fish ponds or water gardens to help reduce algal growth without harming pond plants and animals. Barley straw has not been approved by the United States Environmental Protection Agency (EPA) for use as a pesticide and its effectiveness as an algaecide in ponds has produced mixed results during university testing in the United ...

  6. Blue-green algae being treated [Video] - AOL

    www.aol.com/news/blue-green-algae-being-treated...

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  7. Sick building syndrome - Wikipedia

    en.wikipedia.org/wiki/Sick_building_syndrome

    Roof shingle non-pressure cleaning for removal of algae, mold, and Gloeocapsa magma; Using ozone to eliminate the many sources, such as VOCs, molds, mildews, bacteria, viruses, and even odors. However, numerous studies identify high-ozone shock treatment as ineffective despite commercial popularity and popular belief.

  8. When should you remove snow and icicles from your roof? - AOL

    www.aol.com/weather/remove-snow-icicles-roof...

    In the world of a child, knocking huge icicles hanging from a roof is the most fun game the winter can provide. But to the wallets of a homeowner, knocking huge icicles hanging from a roof can be ...

  9. 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 ...