I have recently constructed 3 sides of a shower cubicle with 12mm marine ply fixed straight to newly constructed stud walls. I've also fitted the shower tray etc, and I'm ready to tile.
The problem is that I've been advised by the people selling me the tiles that I will need to tank the walls before tiling.
This is the first that I'd heard of it, and was previously advised (by a B&Q leaflet), that you could just tile straight on to the ply (after priming with 5:1 PVA).
Does anyone have any experience of this problem, and could anyone recommend a suitable tile adhesive?
Thanks,
John