@dogflax0
Active 3 years, 6 months ago
Those streaks are actually algae (gloeocapsa magma) eating the limestone filler previously shingles. This filler was added to shingles about 30 in the past when asphalt shingles were largely replaced with the heavier, more wind-resistant fiberglass shingles we have today. Algae LOVE limestone.
It is also advisable to determine the roof […] View
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