Welcome to our forum.
I see that there are a couple of "tile guys" on this board. I have a 3/4 bath in the lower level of my split-level home which is below grade that I'm going to remodel. I'd like to do a complete tiled shower, 1/2 walls and floor. The room has had a wet floor maybe twice in past 5 years (VERY heavy rain, previously poor outside drainage).The floor now is unsealed concrete that has self-stick vinyl tile that I can easily remove.Is there any special prep and/or adhesive that can be used in this application? There's always a chance that the floor could see another inch or two of water down the road and I'd hate to have it ruined.BTW - Going on 6 months with my Nordic tub and my wife and I love it!!!
I'd use 1/2 durock on the walls and latex modified thinset.On the floor, I'd remove the VCT. Then scrap, sweep, and clean the floor with a sponge and water. Let dry, then use a latex modified thinset and mix with straight additive instead of water to glue down this stuff called Noble Seal with a 1/4'' V notched trial. Then use the same thinset with straight additive to set the tile using atleast a 3/8'' square edged trial. Use epoxy grout. Btw, for maximum adhesion, flat trial the floor with thinset before using the notch side. No need to wait for it to dry between those steps. Simply take enough thinset out of your bucket to cover a small area, flat trial it then notch trial it.