I'm going to be replacing the vinyl floor in my kitchen and laundry room with 12" x 12" porcelain tile. I will be taking up the old vinyl as well as the 3/4 inch underlayment. I am guessing that the subfloor is 3/4 inch as well. What has been recommended so far is to lay down 1/2" Wonder board with screws and mastic. This is my first tile floor and I want to get it right. Any suggestions would be appreciated. I have been told that porcelain instead of ceramic tile is the way to go.
Doug