I want to tile a room in my parents' house. The current flooring is about 35 years old, some sort of old glued-on tile (best i can tell). It's very thin. I am not sure if there is any backerboard underneath it or if they are adhered right to the wood subfloor.
What is the best/easiest way to do it? Can I get 1/4" hardiboard , screw it down (mortar too?) to the old tile and just put porcelain/ceramic right on top of it? Raising the floor 1/2" to 3/4" should be ok.
Also, how do I cut curves in tile? I have a rotozip, is that a decent tool for the job?
This will be the first time I've ever tiled anything, so I appreciate the advice.