Putting up interior wall, construction and ventilation ?

[robbann]

Hi
I would like to set up a temporary interior wall in my current living room to create two bedrooms out of it.

I wonder how I should deal with the ventilation in the new room as there won't be any vent or window in it.

This is how it looks currently:


The blue arrows on the drawings are incoming air (to?) vents, and the red ones are outgoing air (from?).

And this is how I would like to do it:


The reason I'm a bit worried about the ventilation is because we have ground radon, not a lot (100 Bq/m3) but still... you don't want to disrupt the current ventilation.

I'm also wondering what kind of studs I should use? (is 45x70 sufficient or should I go for something larger?), what insulation is recommended?, and should I use double drywall or OSB + single drywall? (or another combination?)

I have a ceiling height of 270 cm if that matters.

Best regards, Robban

 

[MissAnpassad]

Can you not put a vent in the newly built wall and then make sure to have an air gap under the bedroom door? Or maybe that's not enough?

Then I want to say that from a safety perspective, it feels quite risky to have a bedroom with only one way out, especially since that way faces directly towards the kitchen. I would put a window with frosted glass fairly high up on the new wall, but low enough that one can get out with the help of the room's furniture.

 

[robbann]

I've also been considering the idea of a vent, but placement and number are the biggest question marks right now, and whether the current airflow will be maintained, or at least not reduced too much.

That thing with windows at the top sounds like a good idea, so you can distinguish between night and day too