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    joeblow00's Avatar
    joeblow00 Posts: 4, Reputation: 1
    New Member

    Dec 8, 2016, 07:22 PM
    Moss on asphalt roof
    I have read that moss can damage or shorten the life of an ashpahlt shingle.what if its just small patches of moss here and there on a roof will that hurt anything?
    ma0641's Avatar
    ma0641 Posts: 15,681, Reputation: 1012
    Uber Member

    Dec 8, 2016, 09:42 PM
    The problem is that it can build up on the edges of the shingle and raise it. Then water can get underneath. If you search " removing moss from a roof" you will find suggestions. You may want to trim back tree branches to allow more sun on the roof. If you can get copper or zinc sulfate, a dilute solution of the crystals in water, sprayed on the moss, will kill it.

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