Tile

[kcjasmin39]

Must tile ALWAYS be laid to a cement-based product or can it safely be laid to a wood product like plyboard?

[j2buttonsw]

You can tile over a subfloor of thick plywood but make sure is it solid and even and be very wary about getting the subfloor wet (especially in a bathroom) as it will swell and break the tiled surface.

[rekstout]

If you are laying onto anything other than screed or concrete then make sure you use a suitable flexible adhesive as ordinary tile adhesive will not cope with the flexing of the surface due to heat, moisture and presure.

[woofgang]

if you are talking about rigid tile, eg slate or ceramic, that may not deal with the flexing of the floor irregardless of the ahesive used

[Dsg]

I have just had my bathroom done and we had ceramic floor tiles laid on 1/2 inch "MARINE-QUALITY" plywood (nailed down at 6 inch intervals) with flexible adhesive. As for wall tiles - my tiler said that provided that they are sound - the best surface for wall tiles is an existing tiled surface.