While you may have meticulous landscaping, beautiful windows, and a charming mailbox, black streaks and stains covering your roof will drastically decrease your home’s curb appeal.   What causes those ugly, black stains? How do I fix them? According to experts in the roofing industry, these stains are caused by an algae, Gloeocapsa magma. Costing only a fraction of replacement cost, cleaning it is usually your most cost-effective solution. These stains first became an issue when roofing manufacturers started adding limestone to the shingle coating. The Gleocapsa magma survives through feeding on......

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