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Thread: Black Spots on Rubber Roof

  1. 06-11-2006, 06:05 PM #1
    rlmurraysr59
    rlmurraysr59 is offline
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    Black Spots on Rubber Roof

    <font face="Comic Sans MS"></font id="Comic Sans MS"><font size="2"></font id="size2"><font color="maroon"></font id="maroon"> My motorhome has a rubber roof. Don't just about all of them...My question is: What causes the little black spots that freckle the roof? I use Murphy's Oil Soap and a soft bristled brush twice a year to clean the roof. The spots turn from a black to a very light grey but don't totally disappear. They don't seem to be hurting anything and the roof doesn't appear brittle or worn anyplace. I have been told that the roofing material is the new "improved" type of roofing. Just wondering. Is there some type of coating that I should be spraying on the rubber to keep it healthy?
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  3. 06-15-2006, 01:02 PM #2
    DL Rupper
    DL Rupper is offline
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    Black Spots on Rubber Roof

    MOLD causes the black spots. Use a good rubber roof cleaning/protective solution or mild detergent to clean it. Avoid using any product that has an oil based or petroleum additive in it.
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