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I would like to get information on how to soudproof a home theater I’m building in my new home. The theater is 18’x24′ one wall 8″ concrete 9′ high. The others can be whatever works best.
The floor system above (ceiling of theater) is 16″ deep TJI with 3/4″ plywood subfloor.
While I’m at it, I would like to know about soundproofing in general and where to get information that is reliable. Soundproofing metal heating & A/C ducts and units. Bedrooms from other areas of the home and so forth.
Thanks in Advance!!
Lee
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Mass is what you need. If this is new construction I would build all the walls out of concrete. Use separate floor and ceiling joists so that the floor joists don't touch the ceiling below. Size the ceiling joists for the load then screw 3/4" plywood to the bottom and fill with a couple of inches of sand. Then hang drywall on acoustic channel everywhere. Then carpet the walls.
*Mike is right. Consider using the Fibre-Rock product - a f.r.g. faced gypsum board, 5/8", 2.9 lbs/sq ft, and very stiff aiding some with low frequencies - wherever you might otherwise use g.w.b.Also - air tightness is important as a first step. And fuzz all cavities with a dense fibreglass or cellulose product.
*If you live by major airport, they can direct you to some info. I live by seattle-tacoma airport and they have had a noise abatement program for year
*I am putting a woodshop in my basement of a new house. I plan to insulate between the joists(TJI)with fiberglass or cellulose then hanging two layers of sheetrock, then hanging an acoustical ceiling on non-metal hangers. there will be no openings between floors. What do ya think? Will it work?
*Lee,Mass is a good idea. In one sound studio in NYC the walls were spec'd as 1 5/8" track and stud with 1 5/8" of rock on each side. But don't forget about isolation, sound is transmited thru surfaces too. U.S.G. has a book about this. Try thier website. Theres all sorts of flange type furring looks like 3/4's of a hat channel. I think Celotex still makes that fiberboard too. Lots of choices to make, get a good book on acoustics like the one from U.S.G. and pick one.Once put sheet lead on a condo wall then rocked over it. The guys neighbors AC unit was driving him bananas. He reported it to be only marginally effective. I think that was because we didn't use any isolation of the framing members to deaden the transmission thru them. Good luck.RM
*amen mike-as an aside, 1 sq inch hole in a standard wall of 3 1/2 studs with 1/2 drywall on each side will transmit as much sound as 100 sq ft of the wall itself!
*Three years ago we built a Foley stage, which is a room for recording extremely low level sounds like footsteps and cloth movement. This may be overkill for your application, but what we did was to gut a large region inside an existing building all the way down to grade, and build a completely separate structure inside there, a box inside a box. Because of the importance of solid-sounding footsteps, the floor was slab on grade. The Foley stage was about 60' x 20' x 15', and cost $750,000. Before that, I remember a professional drummer who turned a garage into a practice room using the same approach, a box inside a box. The results were excellent, the neighbors couldn't hear a thing, and that was a DIY job.-- J.S.
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I would like to get information on how to soudproof a home theater I'm building in my new home. The theater is 18'x24' one wall 8" concrete 9' high. The others can be whatever works best.
The floor system above (ceiling of theater) is 16" deep TJI with 3/4" plywood subfloor.
While I'm at it, I would like to know about soundproofing in general and where to get information that is reliable. Soundproofing metal heating & A/C ducts and units. Bedrooms from other areas of the home and so forth.
Thanks in Advance!!
Lee