Insulation for soundproofing

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Old 04-04-11, 05:01 PM
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Insulation for soundproofing

I'm in the middle of a bathroom reno, and I am down to the studs getting everything ready to put it all back together. My studs are 2X3's, hence thin walls. I was thinking since the opportunity was there, that I could add some insulation to the interior walls so the bathroom activity could be better kept "in the bathroom."

IS there a insulation best suited for soundproofing and is it really worth the extra $$ to muffle the ocassional fart?
 
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Old 04-04-11, 05:08 PM
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Regular old FG insulation will help...2" styrofoam is better but more expensive and needs to be caulked or taped at all seams for max effectiveness. You can't soundproof it..but the above will "muffle" it to some extent.

A "safe-n-sound" or solid core type door will also be a big help if the gap at the bottom doesn't have to be to big.
 
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Old 04-04-11, 06:32 PM
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Excellent. Thank you for the advice.
 
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Old 04-05-11, 07:04 AM
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The fiberglass is a basic startig point. The foam is not suggested, unfortunately. Great for thermal, poor for acoustics. Stick with the R13 fiberglass.

The door as described by Vic is right on the money
 
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Old 04-06-11, 02:50 AM
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If you want to go a little overboard you can also use resilient metal channels across the studs and screw the dry wall directly to it to further reduce sound transfer. In addition another over the top solution is to use 'quiet rock' drywall which has laminated layers that further reduces DB transfer by 5 or 6 times compared to that of standard sheet rock. If you used all of the solutions including safe and sound you could hold your own rock concert in there and nobody would know. It all a matter of budget and privacy needs and how much beer you drank the night before.
 
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Old 04-06-11, 01:05 PM
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Originally Posted by equinox View Post
In addition another over the top solution is to use 'quiet rock' drywall which has laminated layers that further reduces DB transfer by 5 or 6 times compared to that of standard sheet rock.
Better and moe economical to use two layers of standard 5/8" drywall with a field application of damping compound.
 
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