What material to use for partition wall between shower and sauna in basement

[DiddeW]

Hello Forum!
I want to replace a poor wooden stud partition wall between a shower and a sauna in my basement, before I tile in the shower area. The wall is not load-bearing. The house is from 1963 with an uninsulated floor but recently drained. I would like to build it up to make it more stable and less moisture-sensitive. A straight wall from floor to ceiling, about 1.8 m long, no complications. I was thinking, in my ignorance, Leca blocks 75 or 95 mm and then insulation and sauna panel. Or is there a more convenient alternative that is sufficiently insulating so that separate insulation can be excluded? Or is it that the Leca blocks already provide this?
Grateful for other ideas/tips!

 

[Finndjävel]

The Lecablocks insulate sufficiently, no extra insulation is needed. Do not place the sauna panel directly on the leca, but create an air gap in between.

 

[DiddeW]

Thanks for the info, do you mean that 75 or 95 mm insulates sufficiently, or does it need to be thicker in itself?

 

[DiddeW]

A supplementary question. I think that one should smooth the surface on the Lecan on the shower side where the waterproof layer is to be. But is it necessary on the sauna side? And what should be used to smooth it?

 

[leby]

polish both sides, use ordinary b bruk

 

[leby]

for this one you can use the same for masonry and plastering
https://www.byggmax.se/gjutning-och...bruk-b-p0112?gclid=CMeB69bHis8CFaXUcgodmFwG4g