Sound Isolation for Bedroom Studio

Started by ckett on 16 November 2010. 1 reply.

Originally posted at johnlsayers.com, topic 15179.

Hello, I am planning on doing a bedroom conversion for my studio and would appreciate some feedback and experience on its design. The room is part of a single story house on a concrete slab. One side of the room is an outside wall with a window. The room will have to entry doors. Dimensions are 12x15. The ceiling is vaulted. My neighbor unfortunately has a couple of barking dogs. I used a sound meter and measured the peak dB to be at 75db C weighted scaling. My goal is to achieve 60 STC overall. I am shooting for total silence and am willing to spend some$$ to achieve this as selling my house or shooting the dog and going to court over it would cost some $$ as well ;-) The outside wall has brick masonry. Then your standard 2x4 studs and drywall. Here is my strategy thus far. I plan on replacing the wall insulation with new standard R16 fiberglass wall insulation. On all of the walls and ceilings I will use Green Glue Noiseproofing clips. http://www.greengluecompany.com/noiseproofing_clips.php Then I will add 3 layers of 5/8" gypsum x with Green Glue in between both layers. http://www.greengluecompany.com/noisepr ... mpound.php The window will be replaced with a dual window maybe by this company that states 60-63 STC rating. http://www.soundproofwindows.com/record ... ndows.html The doors I will replace with solid core doors and add this kit to seal around the edges. http://www.soundisolationstore.com/prod ... stops.html My question is, will this come close to my goal of 60 STC and bring peace and quiet to my studio? Any suggestions and ideas for products and or structural ideas is welcome Thanks!!
i think in this case, if you're planning on adding to the existing walls and ceiling, consider using RC-1 or 2 on the stud / joists (assuming you're planning on removing the existing drywall to add the insulation. or if you can afford another inch or so, using isolation clips and hat channel. then the 3x drywall. one of the biggest challenge will be the window and you'll need to consider replacement of the exterior window and an inner window with the specs you quoted. you'll also need to decouple the inner window like you're decoupling the walls - using some isolation mounts and a frame to hold that. next up, flanking, once you hit 55-60 STC your flanking paths through the structure become readily apparent. most times we don't recommend floating the floors but in this case, consider beefing up the existing floors (underneath or on top) with drywall or cement board to increase the mass then consider using 2" rigid insulation on the floor with 2x 1/2" plywood plus your finish (like 3/8" engineered wood). please add your location info etc.