Black Algae on Roof


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Old 07-22-07, 04:58 PM
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Black Algae on Roof

I have black algae on our fiberglass shingles- pretty common problem it seems in Florida. I have been looking up ways to get rid of it. What I have read suggests an oxygen bleach solution. Would OxiClean do the same?

Thanks for your help!
 
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Old 07-23-07, 11:34 AM
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Red face roof and siding growth

Hi-

I use the stuff that you buy in a small bag for clorinating an outside pool. There is a product out there to clean your siding with a hose attachment. I kept the bottle and use a mix of of the pool powder and a hint of dishwashing soap. The algae green or black dissappear after a couple of days. I basically reverse-engineered the product that I originally bought for siding.
 
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Old 08-28-07, 07:29 PM
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Home Depot has an "Outdoors" version of Clorox bleach which has been very effective at cleaning gutters and aluminum siding that has become mildew-impacted.
Highly recommended.
Let it "sit" for a few days, and then give it one more shot via some sort of spray device.
 
 

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