Q: I want to do a large mosaic tile floor in my new room addition. I have no clue where to start. I’ve never done tile work before, and I don’t want to goof up and have to rip it up. What can you ...

As long as the surface is level and the existing floor tiles are gloss-free and in good condition... Here's how: • The existing tiles need to be thoroughly cleaned with a heavy-degreaser or sugar soap ...