We've had moisture problems in one of our bathrooms (mainly teen-aged kids) that over the years has caused mold, peeling paint (both latex and oil-based), peeling wallpaper, etc. My wife is tired of re-working the bathroom and wants this work to last for many years and so she came up with the idea of putting ceramic tile on *all* of the walls and ceiling. Right now we have tile in the bathtub surround only. BTW, we did install a bathroom vent fan a number of years ago and it helped but didn't solve the problem.
So, what are the pros/cons of tiling the entire bathroom? Do we need to do anything special to the painted ceiling before we start sticking tile to it? What keeps the tiles up while the glue/thinset are setting?