Hey everyone! I'm a newbie at this building thing and need some advice on soundproofing a wall. I want to create a frame attached to an existing wall and fill it with UltraTouch Denim insulation, top it off with mass-loaded vinyl (MLV), and finish it with some acoustic wooden slats that I got from Wood Veneer Hub. My main concern is weight because I plan to mount two 20lb speakers on steel mounting plates that will extend 14 inches from the wall, plus a 40lb TV flush-mounted in the center.
I considered tearing down the drywall and replacing the spray foam insulation, but it sounds like a ton of work. I'd prefer to lose about 4-5 inches and just mount directly. I also thought about a floating installation similar to this (link here), but I'm worried it won't handle the load very well.
Is it feasible to connect the frame to the floor and ceiling trusses? Or will attaching it to the drywall compromise the wall's stability? I'd love your thoughts or suggestions on how to improve the design. Thanks a bunch!
1 Answer
In your setup, it's better to let the frame float. Attaching it directly to the wall as you're thinking might allow sound to travel through, defeating the soundproofing purpose. It would get quieter, but not worth the effort of building another frame. Just make sure your insulation choices are appropriate!
Yeah, but if the frame is floating with ISO clips, won't it struggle to support your speakers and TV? That could be an issue.