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    mkslarse's Avatar
    mkslarse Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 1, 2007, 01:39 PM
    When do I trim the vapor barrier in my remode of tube/shower
    Hi,

    I am adding a shower to an already existing tube in a bathroom. I have removed everything down to the studs around the tube and am ready to put up my 4 mil polyethyline sheeting for a moisture/vapor barrier. I know that I need to put up 1/2 inch cement backer board next (following the vapor barrier). I also know that the vapor sheeting overlaps my tub and will extend out from under the backer board.

    My question is: at what point do I trim the vapor barrier and how short or long do I leave it? Thanks
    Shelley
    skiberger's Avatar
    skiberger Posts: 562, Reputation: 41
    Senior Member
    		  
    #2

    Jan 1, 2007, 08:55 PM
    You can cut it flush with the bottom of the backer board.
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