Bringing up the age-old topic of tiling on wooden floors, I've read through the archives and think I have everything about sussed. My only source of confusion is the sealing of the ply under the tiles. It's in a bathroom so I need to be absolutely certain that water isn't going to permeate the ply.
So, am I best sealing the ply with:-
a) Wickes Tiling Primer additive - at £9.99 a bottle it's not particularly cheap. b) 3:1 Diluted PVA OR c) Polyurethane varnish
I'm tempted to go for c) since I would imagine it would be most waterproof and I already have a tin of the stuff. Can anyone think of a reason NOT to use this though?
AND...
Anyone got any experience of drilling 8mm ish holes through 10mm ceramic floor tiles?
Ta,
Andy