Vapor barrier extension?

[Rolle85]

I am building a small extension on a friggebod in the countryside that will become a toilet. The friggebod is only used during the summer. What do the experts say, should you always use a vapor barrier or are there risks with it?
Best regards

 

[fribygg]

Should it be heated all year round?

 

[Rolle85]

No

 

[fribygg]

No plastic then

 

[Rolle85]

Okay thx