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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. Soft washing - Wikipedia

    en.wikipedia.org/wiki/Soft_washing

    Soft washing is a cleaning method using low pressure water. More recently, the term "softwashing" has been used to describe any form of spraying chemicals at buildings where solutions (typically sodium hypochlorite based softwashing chemicals) are used to remove mildew, bacteria, algae and other organic stains from roofs and other building exteriors.

  4. Gloeocapsa magma - Wikipedia

    en.wikipedia.org/wiki/Gloeocapsa_magma

    Gloeocapsa magma gained notoriety in the Southeastern United States in the 1990s, but it has since spread throughout most of the rest of the United States and Canada. This particular type of cyanobacteria is responsible for creating black stains and streaks on roofs. [1]

  5. 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 ...

  6. Harmful algal bloom - Wikipedia

    en.wikipedia.org/wiki/Harmful_algal_bloom

    Cyanobacteria (blue-green algae) bloom on Lake Erie (United States) in 2009. These kinds of algae can cause harmful algal bloom. A harmful algal bloom (HAB), or excessive algae growth, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, mechanical damage to other organisms, or by other means.

  7. Professional House Cleaners Name 30 Things People Really Need ...

    www.aol.com/professional-house-cleaners-name-43...

    Image credits: ragby #8. Clean the things you use to clean other things. Replace your kitchen sponge at least twice a month. Wash your towels weekly. Leave the door to your washing machine open ...