Ceramic tile upstairs in 4-plex?

[Larry T.]

Is this possible or wise? The building was built in 1978, wood frame, etc. The downstairs is cement slab... is ceramic tile too heavy to put in the upstairs units (this is a rental)? If it is possible, is it loud for those in the unit downstairs?

[Emilio Ramirez]

On a second floor you will need a minimum of 3/4" plywood glued and screwed 12" on center into the joists. Probably wouldn't hurt to have two. They should run in the opposite direction. This is to make sure the floor doesn't move and crack the tile out. I've done this on a second floor with great results. You also probably want to use porcelain instead of ceramic for a floor area as it is more durable.

Tile is actually a sound barrier versus wood which transfers sound very well. That's why musical instruments are made out of wood. If you have concerns about sound you could insulate with batts inbetween the joists.