tiling over melamine?

I'd tile straight onto it, but sand it down with coarse sand paper first to give a key. Make sure you wipe down afterwards to remove all the dust.

I may be wrong but I would have thought that after sanding it down (to remove the smoothness of the melamine presumably) it might have been a good idea to apply some watered-down PVA adhesive so as to seal the interface between tile and melamine. Isn't that what you are supposed to do with a plasterboard surface?

I don't claim that to be expert advice, it's just a thought that passes thru my mind presented with this problem. Someone else may come along and say "daft idea" :)

PoP

Sending email to my published email address isn't guaranteed to reach me.

PVA certainly wouldn't hurt - you can *never* use too much PVA ;-)