Bathroom - mixed wall materials

[Dozen]

I have a room in the basement that I intend to convert into a combined laundry/bathroom.

One wall is an outer wall with concrete hollow blocks and internal plaster. The other walls are made of plastered brick/concrete hollow blocks, one of which will be demolished and replaced with a new one made of steel studs + suitable board material while being moved slightly in relation to its old position.

All concrete/brick walls are constructed without a moisture barrier, as is the concrete floor. However, the shower corner (concrete/brick wall) will be constructed with a moisture barrier.

The question is how the new steel stud wall should be constructed in connection to the concrete hollow blocks, since the stud wall is built with a moisture barrier. Should this be extended a bit onto the concrete hollow block wall?

 

[ktm250]

Yes, it must be done otherwise you will have a leaky corner that can let water into the stud wall. Use a sealing tape according to the manufacturer there and in the wall/floor angle.

 

[Dozen]

That's how it will be. Thank you for the answer.