Have you installed wind protection instead of a vapor barrier in the bathroom, or how do you solve it?

[Gabbe1]

As I understand it, it's possible to use regular plasterboard in bathroom walls if a foil-based waterproofing membrane is used in the bathroom.

 

[Crebel]

Do you know why? Should be the same basic problem with trapped moisture...

 

[injonil]

I use a vapor barrier in the outer wall even in the bathroom, according to previous discussions in this forum.

 

[mariatherese]

Found this article when I was searching for something completely different. Anyway, there were suggestions for different solutions at the end of the article. Unfortunately, it's not brand new and it's written by a guy from SP. They haven't always been completely accurate regarding moisture, but at least it's an analysis of different membranes against the outer wall:

http://www.fuktcentrum.lth.se/fileadmin/fuktcentrum/Publikationer/Bygg-Teknik/1_07_73.pdf

 

[Mikael_L]

Why should you put windy there? Is there any good reason that I cannot see?

It's probably a bit of belt and suspenders thinking.
That if it doesn't become completely tight everywhere, the wind barrier will stop any convection that can quickly transport larger amounts of moisture to the colder parts in the wall where the moisture precipitates.

I don't think the wind barrier is so foolish to put there, but on a purely theoretical level together with perfect execution, it is probably not needed.