Ahhhh the challenges of enjoying a good flick and not getting yelled at.... I remember them fondly, or not so fondly:rolleyes:
Ran across your post, check out my build. My focus was similar as yours, sound proof a room, don't break the bank. I also took into consideration that we may move in a few years and perhaps someone did not want a THEATER
(crazy people) and it all needed to be able to remove it. So , nothing too permanent.
I did nothing to the exterior walls nor the ceiling/ attic. Last summer I blew in another layer of insulation up there. R value of about 40'ish.
But nothing to the inside. When I get up and running I will give a THROUGH sound/noise check. If I can still hear sound, I'll be able to find where/why and give you a heads up.
If anything, I may need to address some reflection issues, but I will reuse some acoustic panels I made a couple years ago. Use them to figure out where I need control, then replace them with some nicer ones with track from Fabricmate.
-The "decoupling" portion, I tore down 1 side (interior to Home Theater) of drywall that is on a 2"x4" plate.
(Hence me choosing the ROUXL for its density in a 4" gap. When some of the "bigger builds" are able to do these, they are USUALLY framing a NEW wall, and they do them on a 2"x6" or 2"x8" plate. Hence they have the flexibility to use the "Fluffy Pink" stuff.
-I framed up new 2"x4" studs on the IB clips, one on the top, two at the bottom for strength and stability.
PROBLEM is, I had to work with the layout of the wall. Plumbing, electricity, etc were in the way of laying the studs out the way YOU want it. I had to make considerations, and instead of being a nice, neat 24" layout, I had to cut drywall sheets and do a bit of extra work.
- GreenGlue/QuietGlue Pro in between 1/2" (not 5/8", had to make considerations...).
IF you can find a supplier that has the 1/2 HEAVY, not the lightweight kind, I would use that for sure. I was under a time crunch to get it done before scheduled flooring install. No time to search around town for it. And on top of that, I knew that I was putting my fabricmate track system on an plywood panel and then hung on the wall, it would act as another "layer". Look for the HEAVY stuff if you can.
One saving grace you and I have in common, is a bathroom between the Theater and the bedroom. One downside is you have a lot of plumbing along that same common wall that you will have to work around.