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I have a question for you folks, I have a home job coming up and the roof is metal. Is there anything I need to know to clean the green mold off a metal roof? What chemicals would you use? Suggestions would be appreciated. Thanks Hugh
 

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I've heard guys using bleach/water/soap to clean metal roofs.I would imagine the mix can be weak since the mildew is just sitting on top of the metal roof.Now the bleach may corrode the fasteners on the roof over a long period of time tho.
 

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I've heard guys using bleach/water/soap to clean metal roofs.I would imagine the mix can be weak since the mildew is just sitting on top of the metal roof.Now the bleach may corrode the fasteners on the roof over a long period of time tho.
The safest way to clean a metal roof is using a little pressure and water.
 
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