Am I going to have problems with tile on this tub deck?
Just happened to think - tub deck is 1/2" Durock nailed (not screwed) to 1/2" or 3/4" plywood, plenty sturdy, there *may* be construction adhesive between them since I have a glob on top in 1 place and on the floor of the room (6 ft away in each direction!) in a couple of places.
But no thinset between. I've been struggling for years (since installation) with tile floors downstairs since installer didn't put thinset between the backer board and subfloor. Am I just asking for cracked grout on this tub deck? 4 ft in one direction, just under 7 in the other, with big tub cutout in the middle.
The problem is, I don't know what I can do about it since the cement board is nailed down, the tub has never been used and is foamed in place. I'm afraid if I try to demo the deck and rebuild it around the tub, I'll end up damaging the tub.