Author Topic: Total Lack of Soundproofing in Condo Walls  (Read 3712 times)

tflorida

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Total Lack of Soundproofing in Condo Walls
« on: April 07, 2009, 05:07:04 PM »
Hi, Everyone

My Son has an almost new condo on the top floor.  He is having a severe problem with noise intrusion from the neighbors on either side of him.  He can hear everything clearly - conversations, music, TV, washing dishes, etc.  He finds the situation unbearable and his Mother an I, who live in Florida,  are on a mission to determine what can be done to solve the problem.

Both walls are 5/8" drywall and are 5 1/8" thick according to the builder.  Their is regular BATT insulation between the walls.   

We are looking for a reliable acoustic contractor in Alexandria, VA 22303 who can do the necessary work once we identify what the best options are. 

Any advice what you would do to soundproof the walls (our Son has very little tolerance for noise) to kill the noise would really be appreciated.  I've read a lot so far, but there is so much information that it is becoming confusing.

Would it be best to remove the 5/8" drywall from both walls and (1) add other insulation, (2) install decoupling clips, (3) seal electrical plugs and open edges, (4) replace drywall and add Green Glue, (5) add another drywall, (6) Green Glue, (7) One more coat of Green Glue? 

Does it sound like I'm going in the right direction or am I off base?  Should "lead-lined" sheetrock be used?  Should we spray cellulose insulation between the walls?

Please help.  Any constructive comments would be very much appreciated.

Tom



Randy S

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Re: Total Lack of Soundproofing in Condo Walls
« Reply #1 on: April 20, 2009, 04:59:59 PM »
Would it be best to remove the 5/8" drywall from both walls and (1) add other insulation,cotton fiber insulation the staple MLV sound barrier to the studs (2) install decoupling clips, SSP Clips and Hat channel(3) seal electrical plugs and open edges, putty pads for back of boxes and caulk between the drywall and box(4) replace drywall and add Green Glue, (5) add another drywall, (6) Green Glue, (7) One more coat of Green Glue?  evaluate reduction each layer of drywall you add. normally 2 layers of 5/8" and green glue is enough but each additional layer should add 10 STC to your system
Randy Sieg

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