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    deeg09's Avatar
    deeg09 Posts: 3, Reputation: 1
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    #1

    Mar 10, 2010, 09:58 AM
    Insulation (for Sound reasons) behind a 3 piece tub/shower insert
    Hi,
    Although I know I am "allowed" to just install the 3 piece tub/shower insert right onto the studs, I am thinking that it might be a good idea to have some type of sound dampening behind the insert (opposite side of the wall is a bedroom)... any thoughts on if I should do this or not? If I should, what is the best (and cost effective) method to dampen the sound? If it is with fiberglass insulation, do I also add a vapor barrier? Then do I also add cement board or greenboard? Or can I just leave uncovered fiberglass insulation? Or vapor barriered insulation?
    Thoughts?
    Thanks,
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #2

    Mar 10, 2010, 07:17 PM

    Are all three sides of this enclosure on interior wall, any outside walls? Your best installation would be sparyed in foam but is costly, especially for a small area. Most common is fiberglass batts or rolls. Greenboard not necessary but for the extra $4 a sheet it can't hurt, drywall would be fine. Cemnet board is just a waste of time and money since this area should never get wet. Did you know they now make a sound deadening drywall too?
    deeg09's Avatar
    deeg09 Posts: 3, Reputation: 1
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    #3

    Mar 10, 2010, 08:41 PM

    Yes, all walls are interior. As silly as it sounds, I would prefer to not lose the half inch thickness of greenboard/drywall. If I do use batt insulation, should I put vapor barrier or leave it uncovered before installing the shower up against the studs?
    Thanks for your input!
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #4

    Mar 11, 2010, 10:53 AM

    A vapor barrier is not needed to sound proof the shower. But for only a few $$ it can't hurt. Tack up 15 lbs felt or 6 mil visqueen and you will never worry about a leak getting the insulation wet and moldy
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