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I have a section of my roof that has something on it that may be alge. It is over the bathroom. Is there anything I can apply to the shingles to get rid of the alge? There are asphalt shingles on the roof.
Yes, get on top of the roof on a day when no rain is perdicted, and spray 100% bleach (don't add water) using a hand held garden pump sprayer. In 20 minutes the green stuff will start disappearing. For stubborn areas, apply again.
Safety goes without saying.
Thank you, that solution seem so obvious. thanks again.