03-13-2007, 09:32 PM
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Member
Location: Katy, TX
Join Date: Aug 1999
Local Time: 02:16 AM
Local Date: 11-23-2008
Posts: 6,501
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Re: Need guru advice to finalize noise isolation strategy
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Since I'm a new user the forum will not let me link to a sketch, so here is a description of the basic layout.
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Post the link without the “www-dot” - we can add the “www.”
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Floor: Wood sub floor system (DRIcore?), with pad and carpet. This is to prevent flanking noise travel through the slab to the guest bedroom.
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If by “slab” you mean solid concrete, you don’t have to worry about sound passing through that.
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Side wall (adjoining guest bedroom): Staggered stud construction, with insulation woven through studs. Theater side will have 2 layers of Green Glued sheetrock fixed to the studs with resilient channels.
Do I need 2 layers of sheetrock on the bedroom side as well?
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Absolutely. Personally I wouldn’t worry that much about keeping sound out of a seldom-used room, and I doubt I’d be watching any movies without my visiting guests enjoying it with me, or while they’re trying to sleep, but since you’re really worried about it, go ahead and triple-sheetrock both sides.
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Concrete side wall: Here I could build a 2x4 wall 2” in front of the concrete for isolation.
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Again, nothing’s getting through a concrete wall, especially one with “tons of earth” behind it.
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Screen wall (adjoining closet): Please note that this wall will have an opening to the closet, so that I can access the DVD player, receiver, etc. The opening will be below the screen, about 18” high and about 8’ long (and would be closed with glass doors). Given these factors, should I still put 2 layers of sheetrock and insulation? I want some control over the noise intrusion into the closet because I will need a heat vent from the closet to a stairway area going up to the great room.
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Not sure if you’re asking about soundproofing between the closet and the HT room, or between the closet and whatever’s on the other side of it. Either way, if you want maximum isolation, stagger-stud with double or triple sheetrock on both sides.
Regards,
Wayne
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