Having read the FAQ and previous posts on tiling, can I just clarify something? I realise that due to a cement/plaster chemical reaction it is inadvisable to use a cement-based adhesive for tiling over plasterboard. But what about the grout? It seems that people recommend a cement based rout - so can this be used when the tiles are mounted on plasterboard?
Also, if anyone has any recommendations for a good quality waterproof grout for a shower, I'd be grateful.
thanks
Paul