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  • Author
  • #10587

    Melisse Fowler

    Normal mildew I can handle with a bottle of diluted bleach. However this mildew is underneath the caulk at the edges of my tub. Are there any suggestions as to how I should treat this. Can I kill it without having to remove present grout? The house is on a slab with a crawl space and there is direct outside air and moisture in contact with the tub edges. Maybe some kind of sealer? I want to avoid crawling under the house. Please, advise.

  • #76410


    Melisse, the question is where is the moisture coming
    from. If it is from the tub due to poorly applied or
    deteriorated caulk, then killing the mold, drying
    out the area, and recaulking (use a caulk with a
    mildewcide) should work. If, on the other hand, the
    moisture is comming from the crawlspace, you will
    have to solve that problem. Techniques for this are
    similar maintaining a dry basement (check out article
    in last issue of Fine Homebuilding (Aug?)) except
    that the additional mesaure of sealing the crawl-
    space ground with poly (Tu-Tuf is best) may be
    When the moisture is gone so will the mold and
    mildew, not before. Good luck.

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