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  2. 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.

  3. Gloeocapsa magma - Wikipedia

    en.wikipedia.org/wiki/Gloeocapsa_magma

    This particular type of cyanobacteria is responsible for creating black stains and streaks on roofs. [1] The bacteria accumulate over time as it feeds on moisture and calcium carbonate . [ 2 ] This accumulation begins to show the black stains as the cyanobacteria develop their dark and hard UV -protective outer coating.

  4. Audouinella - Wikipedia

    en.wikipedia.org/wiki/Audouinella

    Audouinella, also known as black algae, [1] is a widespread genus of red algae, found in marine and freshwater environments. [ 2 ] The form known as " black brush algae " (or " black beard algae ", BBA for short) is a particular nuisance in aquaria , since most algae eater fish and invertebrates avoid it.

  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. Hydrothermal vent microbial communities - Wikipedia

    en.wikipedia.org/wiki/Hydrothermal_vent...

    Samples from the Endeavour Hydrothermal Vents off the southwest coast of British Columbia showed that active venting black smokers had viral abundances from 1.45×10 5 to 9.90×10 7 per mL, with a drop-off in abundance found in the hydrothermal-vent plume (3.5×10 6 per mL) and outside the venting system (2.94×10 6 per mL).

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

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

    Liberty Mutual claimed the roof had moss, mildew and algae growth, but the Colemans insist the alleged damage was simply their solar panels. Don't miss Car insurance premiums in America are ...

  8. 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 ...

  9. Venturi scrubber - Wikipedia

    en.wikipedia.org/wiki/Venturi_scrubber

    Removal efficiency: Applications: Gases: 1.3–13 cm of water 7-13 L/m 3: 100-830 kPa 95% for very soluble gases Pulp and paper industry Chemical process industry Food industry Metals processing industry Particles: 0.5-5 in of water 50-100 gal/1,000 ft 3: 15-120 psig 1 μm diameter