Originally Posted by Brihen
Either #15 felt or 6 ml polly is required behind the cbu, unless it is waterproof coated on the tile side.Yeah there will be extra mudding to do. I was thinking of putting up beadboard wainscotting half way up the wall, in which case I would just use hot mud and primer (not completely finish) most of the drywall, which would be covered by the beadboard.Still undecided, however.
I guess they do things differently wherever you are. Your "waterproofing" behind the cement board isn't doing much good if it doesn't actually cover the studs which are still in plain view.
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