How to attach interior wall to studs?

[Studion]

Hello,

I'm going to build a bit in a warehouse (metal). It will be double walls, i.e.:

1 - Gypsum (3 layers)
2 - 45x70 studs
3 - Mineral wool
4 - Air gap
5 - 5x70 studs
6 - Mineral wool
7 - Gypsum (3 layers)

There are currently 45x170 studs + insulation against the outer wall. On the inside, there is a moisture barrier and a layer of gypsum. I want to take down the gypsum and use the existing construction as one wall in the double wall when building against the outer wall.

But my question is really how on earth do I attach the new inner wall's studs and gypsum in relation to the outer wall/studs that are there today? I want to have as tight a construction as possible, for the sake of soundproofing (it's going to be a studio).

I'm having a bit of trouble explaining in words what I mean, so feel free to ask what I mean if I'm unclear.

 

[mexitegel]

There are several different ways. You can, for example, brace between the 45x170 studs in the outer wall so that you can nail 45x70 studs onto these.

 

[Studion]

Yes, I agree, but the thing is that it opens directly into the wall then = the sound has free passage.

 

[mexitegel]

Yes, but you can put the plaster on the outer wall before you nail the 45x70 rule? Or am I misunderstanding?

 

[Studion]

You're thinking like that
The wall is supposed to be open, i.e. I'm taking down the plasterboard from the exterior wall to use it as part of the double wall.

Here's a little "sketch".

 

[SBH]

are you using some kind of building sealant

 

[Studion]

Sealant will be used in large quantities, I can guarantee that!
How do you mean more precisely that I can use sealant to solve my issue?

 

[mexitegel]

Aha, you should have an air gap all the way around Then you don't need to use kortla provided that you meet the outer wall's studs.

Nail/Screw a sufficiently wide strip on the side of the 45x170 stud that you attach the outer wall's drywall to.

 

[SBH]

where is the problem?
wood against wood?
it's just a matter of putting the rule there, possibly using some kind of sill strip.

 

[SBH]

kind of like this
http://www.gyproc.se/produkter/stålprofiler/övriga+profiler+plåt+och+tillbehör/polyetenduk
if you're not using sound profiles (steel), then put the same sheet on your wooden studs that are against the concrete.

 

[Studion]

where is the problem?
wood against wood?
it's just a matter of attaching the rule, possibly using some sort of sill strip.

The problem is that I don't know much about constructions (but I'm learning) and I don't want sound to leak everywhere at the junction with the outer wall.

I have explained the construction of the outer wall above. Please check the picture. There is also metal sheeting on the outside.....

My question is how I construct it so that sound doesn't leak.
How do I place the studs and how do I attach the drywall to the existing studs/outer wall.
There should be no drywall plates on the inside of the air gap!

 

[Studion]

kind of like this
[link]
if you're not using sound insulation profiles (metal). then place the same material on your wooden frames that are against the concrete.

I'm sorry if I'm being rude, but this has nothing to do with my question.

 

[Studion]

Aha, you need an air gap all the way around Then you don't need to brace as long as you meet the exterior wall's studs.

Nail/Screw a sufficiently wide strip on the side of the 45x170 stud where you attach the exterior wall's drywall.

Yes, air gap über alles!
What do you mean with the strip, where do you place it and for what purpose? It shouldn't be on the inside of the air gap with drywall, if that's what you meant? Sorry if I'm misunderstanding you!

 

[mexitegel]

You can place the polyethylene sheet between the studs and the drywall to achieve damping, as I have read before. The idea is that when the drywall vibrates, these vibrations should not propagate to the frame. It could probably be used for the floor as well.

You've surely read: http://forum.studio.se/index.php/to...garage-studio/page__hl__ garage till studio

Spontaneously, I think your biggest enemy here is the sheet metal on the outside, which risks becoming like a huge membrane.

 

[mexitegel]