i live on the first floor of a condo. built in 1976. little insulation and 5/8 drywall.i have all ready taken down the ceiling and had 4in. of closed seal spay foam installed and resheet rocked but the noise is there but not as bad. a 65%increase of less noise. if I where to blow in insulation in the rest of the bay to fill it up, do you think this would help or should I install reselent chanel and redrywall thank you
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My sister lived on the 1st, and the upstairs people took off the carpet & installed hadwood.
She was looking to move, anyway.
Take down the ceiling if you want - but I would try some quiet rock, or a competitor.
Quality repairs for your home.
AaronR Construction
Vancouver, Canada
Edited 1/4/2009 1:37 am by AaronRosenthal
The hat track or strapping does help isolate the ceiling membrane from the solid joists which carry vibrations. Also a douple ply of rock will absorb sound waves due to mass.
I know a guy who blew in 13" of cellulose to try and stop sound problems because he did not want to take the ceiling down, contrary to my advice.
two years later, he pulled the ceiling down and used strapping and double SR and was much happier.
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Unfortunately with floor ceiling assemblies the most effective way to get rid of sound transfer is to place resilient underlayment on the floor above. Since your upstairs neighbor is unlikely to do this, your next best bet to reduce structure born sound is to use a combination of resilient channels and RSIC-1 sound isolation clips to attach your drywall.
Sound attenuation assemblies work as complete packages. Often simply adding one thing, such as greenglue or insulation, makes little or no difference and can even make the situation worse. Try looking up complete ceiling assemblies, find one that has a tested STC rating that will work in your situation and replicate it. That way you know going in what results you can expect.
Good luck with this. I know living with a noise problem can be very stressful.