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Framing For Sound Proofing

 
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Old 11-10-2019, 11:02 AM   #1
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Framing For Sound Proofing


Putting up a wall, that separates a large open space in a basement on slab.

One side will be a bedroom and to the other, a movie room with great sound. Even when you want to sleep.

For the bedroom, am planning on a walk-in closet that will run majority of the length to act as a sound block. The wall will have a typical pre-hung, hollow core door set off to an end that matches a bathroom door nearby.

- Would 2 x 6 wall framing and deeper insulation really deaden the sound more than 2 x 4?

- Little concerned about setting the pre-hung unit in 2 x 6 studs ... any ideas?
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Old 11-10-2019, 11:07 AM   #2
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Re: Framing For Sound Proofing


it takes much more than just a deeper framed wall & insulation to block sound.

gets expensive also.

think double wall, staggered studs, rockwool, drywall on hat channel just to name a few things.

its not just the wall to think about, floor & ceiling also.

there are many methods and products to use.

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Old 11-10-2019, 11:07 AM   #3
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Re: Framing For Sound Proofing


Sounds like you might be a homeowner working on your own basement. Interior doors are hung in 2x6 walls all the time.

A double wall will do more for sound than a 2x6 wall. Need to break the sound from vibrating through the studs
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Old 11-10-2019, 11:09 AM   #4
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Re: Framing For Sound Proofing


Sounds like you need a solid core door, and sound proof drywall then just build a regular 2/4 wall.

Insulation does not sound proof walls but it does work well to insulate.
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Old 11-10-2019, 11:09 AM   #5
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Re: Framing For Sound Proofing


Why would you have the movies going while you are sleeping?

Does the roxull sound and comfort stuff work?

I'd just do a 2x6 wall with that stuff a solid core exterior sealed door and call it a day if I wanted go cheap.

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Old 11-10-2019, 11:28 AM   #6
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Re: Framing For Sound Proofing


Quote:
Originally Posted by griz View Post
...
think double wall, staggered studs, rockwool, drywall on hat channel just to name a few things.

its not just the wall to think about, floor & ceiling also.
Rockwool looks like decent stuff. Figured on insulating the ceiling.

Quote:
Originally Posted by Stunt Carpenter View Post
Sounds like you might be a homeowner working on your own basement. Interior doors are hung in 2x6 walls all the time.

A double wall will do more for sound than a 2x6 wall. Need to break the sound from vibrating through the studs
A homeowner? Not exactly but obviously not a framer either. Helping with someone's basement.

Asking to avoid using ripped extenders (jamb legs). Which I've seen and don't really care for.

Quote:
Originally Posted by sunkist View Post
Sounds like you need a solid core door, and sound proof drywall then just build a regular 2/4 wall.

Insulation does not sound proof walls but it does work well to insulate.
Done lots of drywall but never 'soundproof'. Could you recommend?

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Why would you have the movies going while you are sleeping?
Someone with dementia, turning up the sound.
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Old 11-10-2019, 11:31 AM   #7
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Re: Framing For Sound Proofing


Gotta do something with the door, that is your weakest link. The exterior door would help, as it also seals at the bottom. You could keep the wall 2x4, then add 2"foam before drywall. Vibration is the worst enemy.
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Old 11-10-2019, 11:42 AM   #8
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Re: Framing For Sound Proofing


Quote:
Originally Posted by Warren View Post
Gotta do something with the door, that is your weakest link. The exterior door would help, as it also seals at the bottom. You could keep the wall 2x4, then add 2"foam before drywall. Vibration is the worst enemy.
You suggesting installing an exterior door on an interior wall member?

Like the foam idea but...never to be adjusted/reset again.


Also like the double wall idea as I could inset the door easier.

Last edited by artinall; 11-10-2019 at 11:46 AM.
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Old 11-10-2019, 11:48 AM   #9
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Re: Framing For Sound Proofing


Another question - would it pay to insulate the opposite closet wall (nearest inner bedroom). OR, should inner closet walls be left "open" for circulation (clothing, etc.)?

The closet too, will have a 6 panel door.

Last edited by artinall; 11-10-2019 at 11:51 AM.
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Old 11-10-2019, 11:51 AM   #10
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Re: Framing For Sound Proofing


The door is easy. Just order one with a 6 9/16 jamb for exterior walls, or any custom width you need depending on what your wall depth ends up being.

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Old 11-10-2019, 11:51 AM   #11
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Re: Framing For Sound Proofing


Air sealing is sound sealing. Make it as airtight as you can.

All your work can be partly ruined by lack of detailing.
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Old 11-10-2019, 11:55 AM   #12
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Re: Framing For Sound Proofing


Quote:
Originally Posted by VinylHanger View Post
The door is easy. Just order one with a 6 9/16 jamb for exterior walls, or any custom width you need depending on what your wall depth ends up being.
Didn't know those were available - believe I checked before but won't admit from where!
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Old 11-10-2019, 12:09 PM   #13
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Re: Framing For Sound Proofing


Double wall – staggered studs… Auralex channel… Green Glue… Isolate the ductwork… Sealed solid core door… sound insulation… decouple as much as possible… the list goes on and on…
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Old 11-10-2019, 01:34 PM   #14
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Re: Framing For Sound Proofing


Here's some sort of mass loaded vinyl, not sure if it's any better than the standard stuff but looks interesting............

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Old 11-10-2019, 01:53 PM   #15
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Re: Framing For Sound Proofing


You could go with two layers of 5/8" drywall on the theater side.
That is a pretty easy and inexpensive way to get pretty good sound insulation.

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Old 11-10-2019, 02:23 PM   #16
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Re: Framing For Sound Proofing


the Acoustiblok is pretty cool. saw a display at IBC where they had a bluetooth speaker inside a small enclosure made of this material and you could barely hear it. lifted the enclosure and it was very loud. Similar to the sound deadening material used in car audio but thicker...and expensive.

don't forget the ceiling area-if it's a drop, sound will travel-if not, sound would go through the ceiling to the ground floor.

re: insulating the closet outside wall-doesn't make any sense because the closet doors (bifold) will likely not attenuate the sound much. best best is attacking the partition wall and use foam for penetrations. attention to placement of the sub, as low frequencies travel further. may also get sound travel through the supply duct if not careful. flex duct would like be the best solution but register placement is the key. two supply registers on one solid duct is the kind of design that may transmit sound.
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Old 11-10-2019, 02:24 PM   #17
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Re: Framing For Sound Proofing


We are building an office building for our company right now. We did this between the three offices, with batts in each side. 5/8 rock, solid core doors. Quite effective and cheap

Do it on master suites etc... on our custom homes as well

At my personal home, I did 5/8 rock on the whole thing, insulated all interior walls, rock wool in utility room. My personal study has an exterior door seal on the door separating it from the rest of the house.... I almost put a threshold, my kids are loud AF lol
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Old 11-10-2019, 02:36 PM   #18
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Re: Framing For Sound Proofing


If your real worried about sound you can run a double pony wall above the ceiling to the roof deck. Never needed to do it but it would work well, I have done done double metal stud walls to the concrete deck and insulated with double rock for interview rooms at the AGs in the Clements Buolding in down town austin, same thing for the supreme court confrence rooms and the justices offices in the Supreme Court building of the Captiol Complex.
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Old 11-10-2019, 04:25 PM   #19
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Re: Framing For Sound Proofing


Quote:
Originally Posted by DaVinciRemodel View Post
Double wall – staggered studs… Auralex channel… Green Glue… Isolate the ductwork… Sealed solid core door… sound insulation… decouple as much as possible… the list goes on and on…


Exactly this!


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Old 11-10-2019, 06:36 PM   #20
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Re: Framing For Sound Proofing


Sound Clips, hat channel, double 5/8 type x with GG between them. Keep drywall back from corners and fill corner with sound caulk. HVAC gets tricky. At a minimum change any ridgid ducting to insulated flex duct but that is still a weak point. Exterior door or interior with weatherstripping and an auto drop bottom seal.



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