Why do roof shingles turn black?

The black streaks running down roofs are actually a hardy algae called Gloeocapsa magma. As the blue-green algae accumulate, they develop a dark, hardened outer coating, which results in the black stains you see. The algae feed on the limestone in shingles.Click to see full answer. Consequently, will bleach damage asphalt shingles?Chlorine bleach / TSP

The black streaks running down roofs are actually a hardy algae called Gloeocapsa magma. As the blue-green algae accumulate, they develop a dark, hardened outer coating, which results in the black stains you see. The algae feed on the limestone in shingles.Click to see full answer. Consequently, will bleach damage asphalt shingles?Chlorine bleach / TSP chemical combination can kill plants, and the phosphates hurt the environment. Chlorine bleach also dries out a shingle roof causing curling, and ultimately shortening asphalt roof shingles life. Roof Cleaner QSE does NOT CONTAIN bleach or chlorine chemicals.Beside above, does cleaning your roof damage it? Roof Cleaning is a Regular Part of Roof Care Neglecting your roof can lead to creeping damage that may be expensive to repair and could cause loss of personal property from intrusion of water and mold. Doing at least an annual cleaning and inspection will go a long way to prevent long-term issues with your roof. In this manner, what is the best cleaner for roof shingles? The most effective method of cleaning algae and moss from a roof is with a 50:50 mix of laundry strength liquid chlorine bleach and water. Apply with a sprayer and allow the solution to dwell on the roof surface for 15 to 20 minutes, and then rinse thoroughly with low pressure water.What is the best roof cleaner? Our Top 8 Best Roof Cleaners Reviews Wet and Forget – 1 Gallon. Spray & Forget Revolutionary Concentrated Roof Cleaner – 1 Gallon. Mold Armor E-Z House Wash – 1 Gallon. B.E.S.T. Rubber Roof Cleaner – 48 oz. Protect All Rubber Roof Cleaner – 1 Gallon. D2 Biological Solution – 1 Gallon. Green Off Mold and Mildew Remover.

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