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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. 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. 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 ...

  5. Roof shingle - Wikipedia

    en.wikipedia.org/wiki/Roof_shingle

    An asphalt shingle roof has flexible asphalt shingles as the ridge cap. Some roof shingles are non-combustible or have a better fire rating than others which influence their use, some building codes do not allow the use of shingles with less than a class-A fire rating to be used on some types of buildings. Due to increased fire hazard, wood ...

  6. Jeyes Fluid - Wikipedia

    en.wikipedia.org/wiki/Jeyes_Fluid

    Jeyes Fluid / ˈ dʒ eɪ z / is a brand of disinfectant fluid for external use only, [1] owned by the German company Henkel since 2016. [2] It is predominantly used for removing bacteria, while gardeners have found it effective at cleaning paths, patios, greenhouses, driveways, and drains - particularly of moss. [3]

  7. Flat roof - Wikipedia

    en.wikipedia.org/wiki/Flat_roof

    The reflectivity of built up roofs depends on the surfacing material used. Gravel is the most common and they are referred to as asphalt and gravel roofs. Asphalt degradation is a growing concern. UV-rays oxidize the surface of the asphalt and produce a chalk-like residue. As plasticizers leach out of the asphalt, asphalt built-up roofs become ...