securing wall framing

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empire_of_one

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i am going to be studding out the wall framing in my basement studio soon, and i have some questions. the situation is: i will have two rooms (a control room and a studio room), plus a small bathroom, a small sound lock/vocal booth, and a laundry room. i have a little over 7' headroom between concrete floor and ceiling joists, and preserving headroom is a priority along with soundproofing. the walls for the studio and c.r. will use resilient channels, as will the ceilings. thick padding and carpet in the studio, shallow floated floor in c/r.

I will have neoprene rubber between the wall framing and the concrete floor and ceiling joists. What i am not sure about is how to secure the wall framing to the joists. If i simply nail through the framing and neoprene into the joists above, wouldn't that defeat the vibration dampening properties of the neoprene, by transmitting vibrations through the nails to the joists? If so, how do i go about securing the wall framing to the existing surrounding structure? or is the amount of vibration transmitted through the nails small enough to be negligible, esp. when the drywall will be hung with resilient channels?

Thanks, in advance.
 
The nails won't transmit much of the sound. The neoprene will stop the bulk of the sound transmission.

Don't forget to seal the sheets at the floor joint.

cheers
john
 
How are you going to put the neoprene between the wall and the floor, and how do you seal it? I have almost the exact same situation as you and I too am using neoprene and resilient channels. I was planning to put the neoprene UNDER the bottom board that forms the bottom of my wall and simply pull it up and staple it to the studs. Then goes my resilient channel. Does this sound right?
 
I haven't started any aspect of my home studio construction project - because I see new tidbits on this board daily and use them to research and refine my thinking.

Thanks, I appreciate it!

Anyway, an architect I work with told me about something called 'sill sealer'. I haven't seen it first-hand, but apparently it's used for constructing stud walls that sit on concrete floors. It's a type of foam tape that sandwiches between the bottom sill plate and the concrete. I guess this stuff then expands alot. This is found at Home Depot or Lowes.

Does anyone know about it ...in terms of acoustics?

Also, where do you purchase neoprene/rubber for this same use?

I'm working on a 3D AutoCAD study of the spaces and hope to post some pretty pics soon - it's hard to put alot of this into words.

Thanks.
 
with resilient channel the connection of the stud to the floor is not the important seal to make...........it's the drywall to the floor which is the important seal and there are flexible silicon seals available today that will work well here.

cheers
john
 
....So is it a good idea then to leave a little space at the bottom of the gyp board to run a bead of sealant?...or is it ok (any different or better) to rest the gyp on the floor and then run the sealant?


Thanks!
 
yes - c7sus is correct -the sheets shouldn't touch the floor. Use 1/2" pieces of wood on the floor to set the sheets on then remove when the sheet is attached. Then use sealant to the floor.

cheers
john
 
That certainly makes sense. I'll put a 'check' in that box on my ever-growing list of small detail questions.

Thanks!
 
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