Creating a sound barrier between walls.

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  #1  
Old 01-19-06, 01:19 PM
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Creating a sound barrier between walls.

I'm building my own house and would like to sound isolate some of the walls such as bathrooms and bedrooms. What is a good way to do this? I was thinking of putting some OSB on the wall before drywalling. What do framers normally use for this and what will live up to code?

Thanks,

John
 
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  #2  
Old 01-19-06, 01:47 PM
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Creating a sound barrier between walls.

Staggered studs or resiliant clips will cut down on the sound transmission.

Also, pay attention to the little things like opposite outlets in the same stud cavity.

Dick
 
  #3  
Old 01-19-06, 05:05 PM
darinstarr
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Dick-

How do resilient clips differ from resilient channel, if at all? I am nearing the drywall stage of my home recording studio and was planning on using resilient channel - never heard of clips though.

-Darin
 
  #4  
Old 01-19-06, 06:07 PM
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Creating a sound barrier between walls.

Same difference.

I was thinking one way and typing a different way.

Dick
 
  #5  
Old 01-19-06, 10:54 PM
darinstarr
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Thanks for the clarification Dick.

John - There are several ways you can approach sound isolation, and it helps to start with a reasonable goal in mind. The combination of mass (the wall surface) and air (the wall cavity) together are what helps minimize sound transmission.

If the area is not already built, framing with larger lumber is a great start (2x6 studs rather than 2x4). Staggered studs, as Dick mentioned, are ideal. Two layers of 5/8" drywall as a next step, using resilient channel (RC minimizes contact between the drywall and the stud, reducing sound transmission) if needed. Special acoustic caulk around all seams is essential. And don't forget the floor and ceiling.

Assess your needs and see what would work best. If you're just looking to add a little separation between rooms, doubling up on drywall layers may be sufficient. Special "sound control" drywall alternatives exist, and are generally not worth it.
 
  #6  
Old 03-03-06, 11:18 AM
rm1759
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Another alternative is Green Glue. this stuff is supposedly as good as the RSIC channel. basically, you put it in between your layers of drywall and it isolates the room...

http://www.audioalloy.com/

it's a bit pricey, but everyone I have heard that has used it has had great results. there is more info on this product over at www.avsforum.com
 
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