Help with sound dampening

Old 07-24-13, 08:51 AM
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Help with sound dampening

Could use a little advice with my new house. I just bought a top/bottom duplex and will be living in the basement apartment. I had to gut the whole unit so now have all the floor joists exposed. I want to maximize sound dampening from the upstairs as much as possible. However, the ceilings in the apartment are only 6'6" so I have to conserve as much space as possible. My current plan is just to insulate with R19 between the joists and then Sheetrock over. I was also thinking about putting green glue along the joists where they will be in contact with the drywall. Any other suggestions? Thanks.
Old 07-24-13, 03:38 PM
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Cork is a simple & cheap sound proofing material. Maybe there is some way to use that.
Old 07-24-13, 04:25 PM
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How long are your spans? Here is what I am thinking. Can you install some nailers between your joists so that you are not screwing the rock to the joists but between them. Hat channel is probably not rigid enough. 2 X 4's might work The cross bridging might interfere. Steel studs might work. Maybe you you can use 2 1/2 inchers.
Just a thought.

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