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    Patrick Peruzzi's Avatar
    Patrick Peruzzi Posts: 1, Reputation: 1
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    #1

    Aug 17, 2009, 06:29 AM
    Is it good to put plastic behind shower wall or will it make back mold
    I put plastic behind a shower wall will it trap water and make black mold
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #2

    Aug 17, 2009, 10:12 AM

    More likely will prevent mold. You place a vapor/moisture barrier up before the wonderboard. Wonderboard, cement board, Hardiebacker, etc... will not deteriorate from moisture but they can allow moisture to go through them so you need that barrier. I recently referred to the as water proof but Bljack reminded me that "proof" is not the true or correct term.
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