Author Topic: Sound proofing my home theater, basement  (Read 4297 times)

craigp

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Sound proofing my home theater, basement
« on: November 25, 2011, 06:07:44 PM »
The space is approx 20’x23. The unfinished ceiling height is 9.5’.  The existing walls are framed.  I was going to insulate and finish with 5/8 drywall. Then fill the floor joists with insulation and finish with 5/8” drywall. Now I’m thinking of building a ‘floating room inside this room.  No preference on material wood/steel, studs. Walls will be isolated from the floor sitting on 0.50” rubber and extend up but not touch the existing finished ceiling.  On the sides off these new walls facing the finished walls add 5/8” drywall and the gap between these two walls would be in the 1”.  The new walls would be insulated using an acoustic insulation. Inside finish two layers of ½” drywall, staggered joints. The ceiling would be of similar not touching the existing one.  I’m going to finish the wall joints with the proper acoustic tape and seal all the cracks and spaces with acoustic caulking, so I think it should be good.  Is there a better way to do this?

Randy S

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Re: Sound proofing my home theater, basement
« Reply #1 on: November 26, 2011, 03:46:48 AM »
You are going to create the triple leaf system, dont do this........room in a room is a great assembly. Do not add the first layer of drywall to the existing structure and use the air space to your advantage..fill both cavities with cotton fiber, add Mass loaded vinyl to the second frame the padding tape, double drywall with green glue(3tube per 32sqft).
Dont worry about staggered studs on new framing just do a 24" cavity.
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

Randy S

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Re: Sound proofing my home theater, basement
« Reply #2 on: November 26, 2011, 03:48:47 AM »
if you can not do 24" cavity due to span or weight load then use 16" cavity size...safety first..the room will be heavy.. average 8 lbs. sqft. or more.... My best rooms come in at average 10 lbs - 14 lbs sqft.

Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040

Randy S

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Re: Sound proofing my home theater, basement
« Reply #3 on: November 29, 2011, 06:14:40 PM »
Craig,
Sorry about the time on hold...give me a call back and we can finish our conversation.
Randy Sieg

Super Soundproofing Co
www.soundproofing.org
888-942-7723
Ph. 760-752-3030
Fax.760-752-3040