do you think i should lay tiles ona cork floor. it has timeber underneath, should cork come up first?
Answers:
Take up the cork. If you dont, not only will the grout crack, you also run the risk of cracked tiles in the future. The proper way would be to: First remove the cork, then make sure all the floor boards are fixed and solid, fix down hardboard(very thin cheep cardboard type sheeting) with the rough side up. If the floor is really bad then 9mm ply screwed down, would be better. This will provide a smooth base to lay your tiles!! Hey another idea is if your cork is good you could seal it with pva and lay tiles over the top. Or you could lay ply/hardboard over the cork then do your tileing!!
Trust me I'm a decorator.
Other answers:
I would think so, yes.
I would think so, yes.
Remove the cork!! The tile will flex and crack.The grout will crumble.
cork is really porous and spongy, so I would think that any tile you lay on it will come off real soon. One humid summer and your work will have been for nothing.
I put tile over an old cork floor and it worked out fine.
I'm going to assume that you're talking about ceramic tiles. You must take up the cork and then you should nail the heck out of the plywood floor underneath. Then put down cementboard (never hardboard!) by nailing it with roofing nails after troweling flexibond(flexible morter) onto the plywood. After waiting for 24 hrs put the tile down with flexibond etc etc etc.