I have concrete basement floor with some cracks and some latex paint splatters.
I have super insulated the walls and ceiling and plan to use the concrete and my passive cooling sorce.
I plan to lay honed and unfilled 16x16 travertine tiles as the finished floor.
I may put a layer of DITRA down over the concrete before laying the tiles to prevent water penetration and cracking of the tiles.
QUESTION- Do I need to do any special preparation to the existing concrete floor to get the unfortified thinset to adhere to both the concrete and the DITRA or Travertine. I have already pressure washer the floor