Tiling using existing mud bed
I am remodeling a house and the floors on the mail level are ceramic tile and hardwood floors. I want to change one of the rooms from ceramic tile and put hardwood floors in the room. I am refinishing the hardwood floors and making them darker so the new and old floors will match.
When we pulled the air vents out of the floor, we found the "mud bed" was about 8 inches thick! My hardwood guy says to dig all the way down to the subfloor and he will rebuild the floor where he needs it to be.
Question - Do you think I should take out the rest of the "mud bed" that is 8 inches thick to replace with stone tile?
Another problem, when I pulled up the tile and the thinset, the old mud bed is extremely bumpy. Any thoughts?