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Basement ceiling soundproofing - pointers sought  

post #1 of 2
Thread Starter 
I have an open ceiling in my basement ... sound from both the living room above and my gear in the basement flows freely (and annoyingly) between the rooms.

Can anyone point me to threads here that talk about what should be done to properly insulate and soundproof a basement ceiling? The insultation is necessary just from a heating/cooling standpoint. The soundproofing needs to be done to keep my wife happy.

I should mention that I'm not doing my HT in the true spirit of what those here may consider a proper HT, but I am doing what I can to make the basement useable as such.

I'm actively searching the forum for this topic, but the wealth of information is getting in the way.

Kevin
post #2 of 2
Understand that insulation will help with midrange and high frequencies both ways. It will also help with impact type noises like footsteps. It won't do diddly in stopping bass. Bass is stopped in 2 ways:

Physically decoupling the structure

Putting lots of mass between the 2 areas.

If your lower room walls are connected to the upper floor joists, you WILL get some transimission no matter what else you do. You can still reduce the bass transfer some by using double drywall with something like Green Glue between the layers. You can also hang it using RSIC clips to help decouple the ceiling at least.

You can also add a layer of Green Glue and a second layer of plywood on the upper room floor and then put the carpet back down.

Just go in with proper expectations.
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