Basement studio - Isolation Question

[feign3]

I am building a basement studio in which two of the walls are the solid concrete. I would like to use the double wall construction technique (left to right - wallboard, stud with insulation, space, second stud with insulation, wallboard).

Can I skip the second stud/wallboard section when I'm against the concrete wall as long as I still maintain that same air space behind the first one? Or I guess I should also be asking if I really need any special construction with those two at all when I have concrete walls behind them?

See attachment for a visual.

 

[John Sayers]

See attachment for a visual.

pardon??

 

[knightfly]

Musta been using that cheap mail-order glue :=)

 

[feign3]

attachment

Sorry.... I swear I attached it <yeah right>... Anyway, I'll give it another try......

 

[knightfly]

That cheap glue also made the drawing swell up - man, that sucker is HUUUUGE... :=)

Anyway, you should be fine with just adding the inner stud frame with inner wallboard ONLY, using fiberglas or rockwool in the cavity. The concrete will act as the outer leaf and the 1 or 2 layers of wallboard inside the stud frame as the inner leaf of a double leaf wall.

If you WERE to add another layer and air space, you would make the wall's performance WORSE, not better... Steve

 

[feign3]

Great. That's what I was hoping you would say.

Thanks much!