soundproof wall, is this enough?
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Joined: Mar 2002
Posts: 1,351
connoisseur
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OP
connoisseur
Joined: Mar 2002
Posts: 1,351 |
can someone please tell me if this amount of insulation is enough for soundproofing in a condo wall?
thanks. it;s in french, sorry!
2 gypses 5/8’’ + colombage de bois 2’’x4’’ + laine acoustique 3 ½’’ + espace d’air 1’’ + laine acoustique 3 ½’’ + colombage de bois 2’’x4’’ + 2 gypses 5/8’’ (STC 67)
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Re: soundproof wall, is this enough?
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Joined: Nov 2003
Posts: 359
devotee
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devotee
Joined: Nov 2003
Posts: 359 |
Once You Pop You Can't Stop
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Re: soundproof wall, is this enough?
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Joined: Dec 2003
Posts: 692
aficionado
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aficionado
Joined: Dec 2003
Posts: 692 |
I don't read French but I think this is what he is using:
Two layers of 5/8" Gypsum board over 2"x4" with a 3 1/2" layer of acoustic insulation with a 1" air space backed by another 3 1/2" layer of acoustic insulation with another two layers of 5/8" gypsum board over 2"x4"'s...
Please correct me if I am wrong.
My .02: Sounds like it should work very well...
Regards,
WhatFurrer
"Meddle not in the affairs of Dragons, for you are crunchy and good with ketchup..."
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Re: soundproof wall, is this enough?
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Joined: Sep 2002
Posts: 1,488
connoisseur
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connoisseur
Joined: Sep 2002
Posts: 1,488 |
If that is what it traslates to hes gonna have a 2 foot thick 5000 lb wall lol. i think 4 layers of gypsum , two 2x4 walls with two layers of foam oughtta be pretty sound proofed!
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Re: soundproof wall, is this enough?
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Joined: May 2003
Posts: 284
local
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local
Joined: May 2003
Posts: 284 |
I believe this is the proper translation because it is an accurate description of the method of construction. An STC level of 67 is excellent. However I would add that it can be deceptive in that it is only the wall we are talking about. If the floor and ceiling structures are connected sound will pass through their structures as well. To really have this low a level of sound transmission the floor and ceilings would need to stop and start at the air gap also. The sound deadening of the walls can be in creased further with layers of sound deadening board on the studs and resilient channnels applied over that and then attaching the drywall to the resilient channels. Offset the joints of the two layers of drywall. Also electrical boxes should be kept to a minimum and far away from each other on opposite sides of the wall(s). Seal all holes and gaps (plates to floor, corners, wires into boxes, etc.) with accoustic caulk.
Mark
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Re: soundproof wall, is this enough?
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Joined: Jan 2002
Posts: 3,270
connoisseur
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connoisseur
Joined: Jan 2002
Posts: 3,270 |
Hey Ravi,
Comment ca vas? (my Ontario secondary school French, seldom used). Don't forget about using staggered studs!
Regards,
Alan Lofft, Axiom Resident Expert (Retired)
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Re: soundproof wall, is this enough?
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Joined: May 2003
Posts: 284
local
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local
Joined: May 2003
Posts: 284 |
Yes, but it depends on what your expectations are. We are flying a bit blind here. If the purpose is to quiet down things from one room to an other within an apartment there may be one set of expectations. If it is to be able to play at full volume in your apartment while your neighbor sleeps on the other side of the wall it is another. Keep in mind also that the situation is somewhat analagous to a bucket. It doesn't matter how strong or thick the bucket is if there is a hole in it. The size of the hole will determine how much it leeks. Much of a hole and a machined titanium bucket and its not much better than a paper bucket. Alan's staggered stud advice is another example. As a stud vibrates it will induce vibration in an adjacent stud across the 1" air gap and into the drywall diaphram and into the room air. Better the air vibration induced by the stud is received by the insulating batt that absorbs the energy. In answering a post like this I like to make the post useful in general to other readers as well as specific.
Mark
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Re: soundproof wall, is this enough?
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Joined: Mar 2002
Posts: 1,351
connoisseur
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OP
connoisseur
Joined: Mar 2002
Posts: 1,351 |
Sorry for the french, I guess I overestimated the french speaking population of this board!
Yes, the translation is correct. the walls and ceilings have 1 and 1/2 feet of concrete between them, so no worries there.
The situation is this: a friend of mine is looking to buy the place. He does recording in his place and once he moves, will also be listening to stuff pretty loud. No, there won't be a live band, just him recording his own stuff, and singing. The main question is will the neighbors be wanting to kill him, or will it be tolerable?
Thansk for all the responses! Bonne annee tout le monde!
Ravi.
p.s. Alan, ca va tres bien, merci!
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Re: soundproof wall, is this enough?
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Joined: Oct 2003
Posts: 129
veteran
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veteran
Joined: Oct 2003
Posts: 129 |
The classic "room within a room". No staggered studs. No resilient channel. Take a room. Add to it a floating floor that does not touch the side walls. On top of the new inner floor build your walls. On top of the new walls, build a ceiling under the existing ceiling. None of the inner walls or ceiling touch the original room walls or ceiling. Everything is well insulated. Double drywall for stiffness and more of a sound barrier. Excellent procedure!
"Life, liberty, and the persuit of happiness"...Go Packers! and Go Badgers!
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Re: soundproof wall, is this enough?
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Joined: Oct 2003
Posts: 129
veteran
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veteran
Joined: Oct 2003
Posts: 129 |
As to my last post...the room within a room takes the brunt of the sound resonances. Then there is an air space, and a second wall to absorb whatever gets through the interior barriers. A great way of keeping most of the sound "in" the original room...or at least not "out" into adjacent areas.
"Life, liberty, and the persuit of happiness"...Go Packers! and Go Badgers!
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