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Has anyone found soundproof drywall for their media room? I am unable to find it and we live in southern Ontario. I wish to add this to the exsiting drywall to lessen the noise level in the master bedroom. Thank you.
 

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Go to QuietRock.com for "soundproof" drywall. At ("as low as") $39.95 per sheet ("for volume purchases") not sure how much of it I'd want.....
 

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May not be available in Canada. You could go with Scuba Dave's idea. Use "sound attenuation" blankets as opposed to regular insulation. Won't be sound "proof" but it should help....
 

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When my in-laws wanted to "soundproof" their basement in their new home the contractor suggested (from experience) of using double sheets of drywall. Not sure how it was laid if the second set was staggered with the first or followed the same layout. I am going to their house tomorrow and I will ask.
 

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ermickie, you can buy Quiet Rock at a Patene store in the following cities: St. Catharines, Metro West, Hamilton, Sarnia, Windsor, Chatham, London, Kitchner, Brantford and Guelph.

I'm not sure what part of Southern Ontario you're in, but here's the # for the Brantford store (519) 750-1355. They should be able to tell you the ph. #'s for the store closest to you.
 

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Really? Then, why do most all sound proof wall assemblies call for insulation in the stud cavities?
Because in cases of working with existing walls it does not always make sense to build a new wall to the inside of the existing wall. An air gap between two studs is not the kind of air gap he means. What air gap means is fully decoupling the wall from the other room. Two walls right next to each other with an airgap between. Not touching the other wall at all. A room within a room if you will. Filling the space bewteen the studs inside of the walls with a heavy insulation will help. You can stuff the crap out of a wall if you want, but you wont stop low end becuase its transmitted right through the studs. In reality decoupling and adding density is the only thing that stops low end. MDF or multiple layers of drywall. The greenglue is in effect decoupling. It reduces the resonense of sound being transmitted through the wall.

If it's an existing wall I would sugest the heaviest drywall you can find with a layer of green glue between that and the existing drywall. I think there are some spacers that will get you a desired airgap that would help even more. I dont know though.
 
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