[widebody911]

Ok, moving out of the shower (sprayed some crap on the studs and waiting for it to dry) I've started tearing out the "main" floor. It's made from similar tile, but set directly on the subfloor, which looks like 1 1/8" plywood. This area is in great shape, and it's a PITA to get the tiles loose. Can I just re-tile back over it, or do I have to use a concrete board underlayment? If I use the underlayment, how do I handle the transition at the door, to the existing carpet in the adjacent room?