i have come across different advice regarding the use of vapor barrier behind cement board.
the Hardiebacker (which is what i am using for my bathroom) documentation does not mention anything about it but a book that i have does.
should i use vapor barrier behind hardiebacker or not?
thanks
the Hardiebacker (which is what i am using for my bathroom) documentation does not mention anything about it but a book that i have does.
should i use vapor barrier behind hardiebacker or not?
thanks