Ceiling contruction help: basement build - 2 birds w/1 post

Hey everyone, A few targeted questions for the construction experts out there...any help is of course, very appreciated! My main post is here: viewtopic.php?t=11629 Here's a sketchup representation: http://www.box.net/shared/k5hloecavi I have what I think is a plausible control room/vocal booth design at this point, and now its into the logistics making sure it can happen. I got some feedback about utilizing the "inside out" design to maximize the use of my space. I plan on using a new set of ceiling joists for the control room and RC from the existing joists for the vocal booth I've read all the information here http://www.saecollege.de/reference_mate ... m#ceilings, and I've read Rod's book cover to cover. I've also followed the Left bank studio thread. I'm still struggling to comprehend a few things. I have two isolation concerns, really. 1) the vocal booth and control room are isolated to be able to monitor with the nearfields. 2) Wife/future kids can be in the house doing normal things and neither of us disturbs the other (ruins a take!) This is a hobby studio, not a business. - scene 2 on the skp file shows where I've done a small section of "inside out" ceiling construction. I don't quite understand the paneling concept. The SAE site shows that a several panels are mounted between each joist space. I have a hard time conceptualizing these panels, even with the given diagrams ( i guess I'm slow!). Has anyone constructed these panels and has pictures? I'm planning on adding mass to the floor above.... -secondly....lets say i figure out how to create the inner ceiling designs I'm looking for (inside out or a regular independent ceiling). Once these inner rooms are sealed off, I still need to separate the rooms from the rest of the basement with an "outer wall". On two sides of the studio, the outer wall is the existing foundation. problem solved. The third wall is parallel to the ceiling joists. Simple solution, build the outer wall that butts right up under the joists, seal to the existing joist. On the other side (vocal booth side), the outer wall will be free-standing. I believe it must be sealed off all the way to the ceiling to maintain isolation and a 2-leaf effect. However, this outer wall is perpendicular to the existing floor joists, so blocking would be required up in the spaces. HOWEVER, there's lots of fun basement stuff in some of those spaces (HVAC, plumbing, etc) Has anyone overcome this in their experience. Since I"m not using the entire basement for the build, there has to be separation from the rest of the space. Here's some pictures to explain..Scene 3 in the skp file shows the problem area. Thoughts??? Thanks everyone again!!! Jon

See if Crams build thread can help out. It is a basement build with all the same issues he had to overcome: viewtopic.php?t=8887&postdays=0&postorder=asc&start=15

xSpace, Thanks for the info....still digesting it. I hadn't seen that build yet. It doesn't specifically address the "border" issue between outer wall and the rest of the basement though...I'll pick through it and see what I can find. He did a fantastic job referencing as he went.... Jon

What border issue?

boy I poorly desribed that.... How to seal the outer wall to the ceiling, with obstructions, when you are using it to separate the studio from the rest of the basement, which is not being using for music-making. Hope I'm making sense.....

"2 birds w/1 post" isn't as easy as you thought? This would still be, in a 2 leaf decoupled framing, one leaf. This last exterior leaf would die into the existing structure not to be confused with the interior new structure.

With all this design stuff...it never is easy, I know that. So....seal outer wall all the way to the ceiling, between the joists. Do my best to work around obstructions including existing hvac and water pipes. check. Thanks again for the help.

Ideally, you would block in the overhead joists at the point directly above where you are installing the wall. Then frame the wall to go up to the newly installed blocks in between the joists. Then install your finish ceiling to the outer side room ceiling and to the newly framed outer wall. You could use a 12 to 16 inch layout on the overhead blocks that will go inbetween the joists. The blocks will face widest side down so that the 1-1/2 inch part butts into the joist on either side. Simple enough?

yes sir....thanks so much for the input. Jon

Thank you, as well.