Trying to beef up outer leaf, 2 questions

Hi Steve, You mentioned a different recommendation for the overall plan, any hints? I'm sure you're busy but I'm just curious what you were thinking... Nathan

I wonder if that "wrap-around the corner" drywall and caulking is really necessary, given this question and the answers given... :roll: I mean, it surely wouldn't hurt any... But... well... you know. :) --Keith :mrgreen:

Hey guys, I've been busy putting this together and I wanted to share my results and ask a few questions. I decided to just add my two layers of 5/8 sheetrock directly to the bottom of my trusses and all walls and live with the ceiling height. I added those, very carefully left a 1/4 inch gap at all edges and caulked/taped/mud/sanded each layer before continuing. I have framed in approximately an 11x16 iso room in one half of the garage and insulated all walls with slightly overstuffed r25 which was 8" thick (about .5 to 1" thicker than the gap between my leaves). Even without all of the drywall finished in my iso room, it is incredibly quiet outside; I had my girlfriend hitting her VERY loud DW snare last night and I literally could not hear it 10ft away. I am a bit blown away with the results...we'll se what happens with a full kit or band. I'm expecting it to get better once the second layer of drywall goes up in the isolation room, right now it is basically only completed against the two walls facing the outside world. My question is regarding how to finish the walls of the iso room facing my control room, which is part of the air space that wraps around the iso room. Should I try to seal them all the way to the ceiling so that there is more spring to the air between my leaves that are against the outside wall, or is it still considered a spring but just a long one (better?) if it is more open to the control room. The control room is about 12.5 ft wide, so I am a bit unsure if this is still considered part of the spring or if the volume is enough that it is venting my 6" airgap. Hope that isn't too confusing...in the picture the room on the left is the isolation room, the air gap at the top of it is now a 3.5 ft wide hallway that opens into the control room, just drag the top iso wall down until it is lined up with the back of the couch, the hallway side of this wall will not be drywalled.