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Thread: mold or algae

  1. #1
    Join Date
    Oct 2008
    Posts
    1

    Default mold or algae

    On the north side of our home we have a green mold or algae. If you use bleach it will come off but it comes right back in a couple of weeks. This mold or algae is spreading up the vinyl siding and across the cement block on to wooden decking and on to metal siding of shed. What is this and how do I fix or get rid of it????

  2. #2
    Join Date
    Oct 2008
    Posts
    56

    Default Re: mold or algae

    Molds have to have an acidic (low) ph for spores to grow. If you have moss on the ground on that side of the house, try lime on the dirt, heavily. Also, condensation is a source of moisture that encourages mold growth. The warm side of a surface will have condinsation which might be an insulation issue.

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