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bamaranch 05-29-2010 08:46 AM

acoustic batts?
Doing a bathroom re-do, and have the walls open. I recall hearing lots of "residual noise" coming from this bathroom when somebody was using it - so want to use some sound deadeners in the wall.

Would love to hear what others have used, trade-offs in price/effectiveness. And, where to get product? I can't seem to find any acoustic batts at any of the big boxes around here.

bjbatlanta 05-30-2010 12:11 PM

Sound attenuation blankets are available from a drywall/acoustical supply yard or an insulation company. It will help to some extent (and better than regular fiberglass ins.), but without other extensive modifications you'll still have sound transmission through fasteners, the door, etc.

ryan5068 05-31-2010 03:59 AM

On thing I have done which works well for walls and ceilings is to pack it with insulation and then go to your local hobby store and buy a large sheet of felt. This stuff comes in rolls and is quite inexpensive. Now with hot glue attach the felt directly onto the facing of the stud on the front and rear, assuming both sides witll be sheetrocked. This puts a softer space between the sheetrock and lumber. Sound travels by vibration and the felt greatly reduces the vibration. It has worked well for me in the past and i will continued to do this.

HHac8014 06-03-2010 09:41 AM

Never heard of sound deadening blankets. Available at big boxes?

bamaranch 06-03-2010 09:56 AM

BJB, I am in Atlanta now, do you know of a place specifically that could carry such blankets?

Ryan, the felt idea sounds like it may be enough additive to the R-13 to be enough. It's not like I'm trying to have buffer a music studio or something - just keep people in the living room from knowing way too much information about how somebody's bathroom experience is going. Felt and R-13 may be enough.

ryan5068 06-04-2010 02:49 AM

If you are looking to just dull the sounds of voices and or bathroom noises the felt and R13 would be totally sufficient. I have had excellent results using this in a theater room and it does a really nice job. I would at least give it a shot compared to spending quite a bit of money on deadening blankets and such. Felt is cheap and so is R13.

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