Author Topic: Noisy upstairs neighbor  (Read 4228 times)

Fishinfan

  • Guest
Noisy upstairs neighbor
« on: June 11, 2007, 02:48:12 AM »
I just bought a condo and the upstairs neighbors are noisy.I sometimes hear the little kid running around and medium to loud thuds.The Tv is loud enough I can hear the bass(I guess).In another board of this forum,they talked about wonderboard.Does it work?Any suggestions would help.

bjnash

  • Guest
Re: Noisy upstairs neighbor
« Reply #1 on: June 11, 2007, 04:29:27 PM »
I just bought a condo and the upstairs neighbors are noisy.I sometimes hear the little kid running around and medium to loud thuds.The Tv is loud enough I can hear the bass(I guess).In another board of this forum,they talked about wonderboard.Does it work?Any suggestions would help.

Wonderboard is a concrete board available from the hardware store and would be useless for the impact noise you describe.  You need to isolate the sound vibration from your ceiling which would entail "floating" a new ceiling on flexible mounts deacribed at

http://www.soundproofing.org/treatments_for_sound_control.htm

BJ Nash - Senior Soundproofing Technical Specialist
Super Soundproofing Co
www.soundproofing.org
888-942-7723


Fishinfan

  • Guest
Re: Noisy upstairs neighbor
« Reply #2 on: June 12, 2007, 04:39:40 AM »
How much would that cost.And would sheetrock help?Or would it pointless. In the last few days they have turned in down,so all I hear is mumbling from the tv.

av8soulfly

  • Guest
Re: Noisy upstairs neighbor
« Reply #3 on: June 23, 2007, 06:32:00 PM »
      Fish, I sympathize with you! I'm in the same situation. I had the dead space between my ceiling and their floor pumped with that paper insulation and it helped a little. It was cheap $260 for my bedroom and bath, but I wouldn't recommend it as the ultimate sound proofing.

av8soulfly

  • Guest
Re: Noisy upstairs neighbor
« Reply #4 on: June 23, 2007, 06:45:47 PM »
BJ Nash,
     I own a small condo downstairs with loud footfall, creaking floors, and cabinet slamming coming from upstairs. There is carpet, then plywood floor, 8" of dead space, and then my drywall ceiling. I had the dead space pumped with that paper insullation which helped a little, but I need more sound proofing. I read about the resilient channels but it seems they would cause my ceiling to hang down too low and I would have to re-locate my air vents.
Tell me what you think of this plan: MLV glued to a 2nd sheet of drywall screwed to the existing joists. Would I notice a significant reduction in footfall noise?

johnbergstromslc

  • Guest
Re: Noisy upstairs neighbor
« Reply #5 on: June 23, 2007, 08:53:28 PM »
av8:

In your post, you say you have 8" of dead space.  Is your ceiling attached to their floor joists or is your ceiling framed up separate?  If the drywall is rigidly attached, adding another layer (with or without MLV) won't help much.  You'll notice a bit of a reduction, but will probably feel disappointed considering the money you'll spend.  To be really effective, you need to 'decouple' the ceiling panels, and the way you do that is with resilient channel.   

Resilient channels only lower your ceiling height by 1/2", not enough to make a difference.  If you use hat channel + isolation clips (a much better method), you lose 1", still no big deal. 

Also, you mentioned vents.  Vents are 'zero density' holes cut in the drywall, which transmit a lot of noise.  I wouldn't be surprised if 95% (or more) of the noise is being transmitted through the thin sheet metal of the vents.  You'll have to do something about the ducts (like wrapping them with MLV/fiberglass wrap) or your efforts will be in vain. 

MLV is not good for CLD applications, between 2 sheets of drywall.  All you're doing is adding an extra 3 lbs/sq.ft, instead of 2 lbs/sq.ft for 1/2" drywall alone.  If you're determined to simply add more material to the ceiling without using channel, it's cheaper and more effective to add 2 additional layers of 5/8" drywall, for an added 5 lbs/sq. ft.

But you'll still have 'leaky' vents.....