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Old 08-22-2010, 06:21 AM   #1
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Major problem with noise


The downstairs bedroom is below an upstairs bedroom, which was originally hardwood. The downstairs was recently renovated, and before the workers hung drywall I added insulation in the walls and between the joists to help mute noise from above.

My efforts to soundproof with insulation failed of course. Sound from feet above traveled straight through the hardwood, subfloor, joists and into the room below. Its as though the basement ceiling was a huge speaker.

My next idea was to install a dense rubber sub-pad, 8 pound 7/16" pad, and plush carpet in the upstairs room. This helps with ambient noise, but did little to stop the floor squeaks & creaking of joists.

Short of pulling out the carpet, hardwoods and subfloor, and replacing.. what can be done with a small budget? Ear plugs for the downstairs person isn't an option.

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Old 08-22-2010, 07:42 AM   #2
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Major problem with noise


Only way to stop floor creaks from the start is by laying a bead of Carpenter's Nails down before the sub-floor gets laid & screwed down. Since it is already down, the only way to stop now, is by using decking screws and tighten the floor to the joists.

As for down below, you could place Quiet Rock on the ceiling and hope that helps, or tear off the ceiling, and place Rock wool in the bays, and then re-sheet with Quiet Rock.

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Old 08-22-2010, 08:11 AM   #3
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Major problem with noise


Quote:
Originally Posted by gregzoll View Post
Only way to stop floor creaks from the start is by laying a bead of Carpenter's Nails down before the sub-floor gets laid & screwed down. Since it is already down, the only way to stop now, is by using decking screws and tighten the floor to the joists.

As for down below, you could place Quiet Rock on the ceiling and hope that helps, or tear off the ceiling, and place Rock wool in the bays, and then re-sheet with Quiet Rock.
Would there be any harm in installing quiet rock over the existing ceiling sheetrock? I think I'd want a flexible caulk to go between the layers of course, but that may make things a LOT better downstairs.
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Old 08-22-2010, 08:24 AM   #4
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Major problem with noise


Creaking floor noises are pretty common and not easy to repair. The good news is that, over time, you get used to them unless you're really "sensitive".
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Old 08-22-2010, 03:59 PM   #5
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Major problem with noise


You can place it on the existing ceiling, but it means extending the boxes to bring them to code.
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Old 08-23-2010, 06:22 AM   #6
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Major problem with noise


There are two can lights in the ceiling. Are there exensions for can lights or do they require removal/replacement?
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Old 08-23-2010, 09:15 AM   #7
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Major problem with noise


I bet the cans would work like the bell of a brass horn. get those out of there when you are messing with the ceiling
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Old 08-25-2010, 08:25 AM   #8
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Major problem with noise


Have a look here: http://www.soundproofingcompany.com/...fing_ceilings/

Essentially two roads to choose from.

- Remove the existing drywall and treat

- Leave existing drywall and treat.

In either case, specialty drywall isn't necessary, as this product has the highest cost relative to performance gain. There are much less expensive solutions that are lab-certified to perform.

The more definitive solution involves removing the ceiling drywall. Better results but more work.

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