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2. Roof cleaning - Wikipedia

   en.wikipedia.org/wiki/Roof_cleaning

   The roof cleaning of fiberglass shingles Streaking on a roof Roof cleaning being performed using a soft-wash system. Roof cleaning is the process of removing algae, [1] mold, mildew, lichen and moss from roofs. [2] Also cleaning oxidation on metal roofs. Cleaning can extend the duration of a roof's ability to function. [2]

3. Moss - Wikipedia

   en.wikipedia.org/wiki/Moss

   Some species adapted to disturbed, sunny areas are well adapted to urban conditions and are commonly found in cities. Examples would be Rhytidiadelphus squarrosus, a garden weed in Vancouver and Seattle areas; Bryum argenteum, the cosmopolitan sidewalk moss, and Ceratodon purpureus, red roof moss, another

4. Asphalt shingle - Wikipedia

   en.wikipedia.org/wiki/Asphalt_shingle

   Different treatment methods are used to prevent discoloration from algae growth on the roof. Moss feeds on algae and any other debris on the roof. Some manufactures offer a 5- to 10-year warranty against algae growth on their algae resistant shingles. Locking shingles: Special asphalt shingles are designed to lock together called tie lock or T ...

5. Removing moss from crevices of a roof - AOL

   www.aol.com/news/removing-moss-crevices-roof...

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6. Sod roof - Wikipedia

   en.wikipedia.org/wiki/Sod_roof

   A sod roof, or turf roof, is a traditional Scandinavian type of green roof covered with sod on top of several layers of birch bark on gently sloping wooden roof boards. Until the late 19th century, it was the most common roof on rural log houses in Norway and large parts of the rest of Scandinavia.

7. Ceratodon purpureus - Wikipedia

   en.wikipedia.org/wiki/Ceratodon_purpureus

   Ceratodon purpureus is a dioicous moss with a color ranging from yellow-green to red. [1] The height amounts to 3 centimeters. It is found worldwide, mainly in urban areas and next to roads on dry sand soils. [2]