Roof Cleaning is not only cosmetically necessary, but also has health advantages. Roof cleaning helps combat certain fungus, algae, mold and mildews that can grow and build up on roof tops.
Asphalt Roofing Manufactures Association (ARMA) top four Roof Dangers:
Algae: Effects wood, shake, metal, tile and asphalt shingles. Lowers property value and can deteriorate your roof. Algae can thrive in humidity and shaded areas.
Lichen: Effects wood, shake, metal, tile and asphalt shingles. May lead to increased shingle degradation leading to costly repairs or replacements. Lichen thrives in moist/humid conditions.
Moss: Effects wood, shake, metal, tile and asphalt shingles. May lead to roof rot and compromise the integrity of the area of the roof effected leading to costly repairs or replacement. Moss thrives in humid conditions.
Mold: Effects wood, and drywall. Some molds such as Stachybotrys (commonly known as black mold) can cause serious health risks and respiratory illnesses. Mold is fast growing and compromises the entire structure not only the roof without fast and efficient removal. Mold usually shows up as fuzzy black, green, or brown colored spots. Mold can thrive in any region and only needs moisture to form.
Mildew: Effects roofs with poor drainage or where trees may over hang. You can recognize mildew by its green, black red or pink powdery appearance. Mildew thrives in warm, humid, and rainy climates.
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