E46Fanatics - View Single Post - Adding sound deadening to a theater
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Old 10-16-2012, 01:29 AM   #15
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Originally Posted by GlockMan View Post
Double drywall and green glue.

It works, trust me.
Originally Posted by 330iPilot View Post
Then you are stuck. Bass is the most difficult to contain. Adding mass and de coupling the ceiling from the floor of the room above along with all of the other walls is the only way to do it. And it's not cheap.

Originally Posted by 330iPilot View Post
The problem is the transmission of the sound by vibrating the ceiling which in turn virbrates the floor turning it into a giant speaker. You have to reduce the vibrating by either adding mass, decoupling, or a combination of both.
Originally Posted by 330iPilot View Post
That's in essence what the best solution is. You build a room within a room.
Listen to these guys.

If you really want to isolate sound to that theater room, and have none of it escape to the first floor, you have to follow these suggestions. A drop down ceiling will not be able prevent sound from escaping to the main floor.

Here's another link that discusses noiseproofing a ceiling:

All these tips are not cheap, but they are definitely worth it if keeping the main floor isolated from the noise from the theater room is important to you.
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