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Regular cleaning, promptly repairing minor issues, ensuring proper drainage, and using rust-resistant coatings help prevent recurring damage.

Roof cleaning services provide a slew of benefits, the most significant of which is improved curb appeal. Roof cleaning can make a dirty and neglected roof look new again, potentially saving you from replacing your roof to improve its appearance. Roof cleaning will also remove algae and moss, the latter of which can eventually lead to roof leaks from trapped moisture and lifted shingles. In the long run, roof cleaning can prolong the useful life of your roof and prevent property damage, making it a great investment.

No, you should not pressure wash or power wash roof shingles, including asphalt shingles. The high water pressure from these machines is too strong and can damage the shingles by forcing water underneath, loosening their adhesive, and causing them to fall off. A safer and better alternative is soft washing with a pump sprayer. To ensure the job is done safely without causing damage, it is best to hire a local roof cleaner.

It may require stronger cleansers or chemicals, higher-pressure spray, or scrubbing to completely remove algae from a metal roof. Start with a mild cleanser; if that doesn’t work and you're comfortable doing so, use a stronger mix of ⅓ cup of laundry detergent, 1 quart of bleach, and 3 quarts of water to gently scrub the algae with a soft-bristled brush. If algae is present across large portions of your roof, doesn’t come off with gentle scrubbing and cleansers, or is in hard-to-reach areas, this may be a job better left to a pro.