I'm ready to tile our unfinished basement bathroom. Our basement floor is in excellent shape (flat, no cracks, dry). Should I tile directly on the floor? Or should I use an uncoupling membrane - Ditra - for protection against possible moisture and to keep the floor a bit warmer?

Another concern I have is that I'll be using Dricore flooring underneath laminate in the remainder of the basement. If I tile directly on the floor I'll have an issue with the flooring level being different between the main basement and the bathroom.

Any advice or recommendations? Dricore advises against tiling directly on it, so I can't use Dricore under the bathroom tile.

Thank you.