The only way I know that really works is with a pressure washer. If it's a tank type washer, add some bleach in the water. Depending on what your roof type is, a pressure washer is the best way!
The only way I know that really works is with a pressure washer. If it's a tank type washer, add some bleach in the water. Depending on what your roof type is, a pressure washer is the best way!
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