Hello!
I'm a bit puzzled; I've opened up one of the exterior walls (single plasterboard) to reinforce with OSB/plywood and run some electrical conduits/outlets. On which side should the vapor barrier be placed when I "double" it up again?? Should it be between the insulation in the exterior wall and plywood, or between plywood and plasterboard... Or does it really matter???

Then I'll ask right away while I'm "at it"... I'm going to have Aquapanel in the entire bathroom; is it allowed to reinforce against the bathroom with OSB/plywood in interior walls, or what do the industry regulations say about that??

Thankful for all answers...
Regards/Baritz
 
It doesn't really matter.

Do you mean that your kortlingar would be placed directly behind the Aquapanel or so that they are against adjacent rooms? In the latter case, you can use any material you want, in the former case, it's a matter of interpretation. I'm not really sure how to interpret the industry rules on that, but practically speaking, it's no problem.
 
Hmmmmm, yes in the bathroom, I meant to insert with osb/blyfa "behind" the aquapanel.
 
Why not use real dimensional lumber instead?
 
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