Bathroom Floor tiling

Hi. I am about to tile a bathroom floor however the level of the bottom of the tile is about 25-35mm from the current floor level (concrete slab). Waht is my best option? Should I lay a "new" bed first (sand and cement) or can I use a sand/cement mixture, maybe with an adhesive additive, and lay the tiles direct as I build up the level? Suggestions appreciated.

picture? :)

Quote:

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I am about to tile a bathroom floor however the level of the bottom of the tile is about 25-35mm from the current floor level (concrete slab).

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I assume u mean that the whole floor is a concrete slab with the bathroom area 25-35mm lower than the other areas?

If so I would screed it first.

Cheers

What ever you do, don't forget that you will need to apply a waterproofing membrane at some stage. Preferably on top of your screed.

Mick