What is the proper method to sound proof over a gyproc wall to reduce noise from the neighbours TV?
In order to soundproof walls you must add a sound barrier to the inside of your walls. You must be prepared to loose some floor space on the walls.
1. Add 1/2" sound board or donnacona board to inside wall.
2. Install acoustical channel from ceiling to floor spacing 16" apart, screwing into the studs.
3. Screw 1/2" drywall to acoustical channel. This method will add 1 1/2" to inside of wall. If there is a severe sound problem between rooms (ie: music rooms, etc.) you should consider adding another 2 x 4 wall on the inside full of R-14 sound insulation such as Roxul Safe & Sound insulation. This should be installed 1/2" away from existing wall then complete with steps 1 thru 3 the overall wall thickness requires 5 1/2"
Note: NEW PRODUCT ON THE MARKET: made by Dryco is called Quiet Rock which is available across Canada. The is a drywall that can be installed right over the existing and will reduce the sound transfer by roughly 75% a brilliant new product that came out in 2006.
For more information call Dryco directly at 1-866-443-7926