My husband and I are considering buying a house that has the same 12x12
textured ceramic tile throughout the entire house. This tile isn't
terrible, but it's a dark orangey brown that's kind of overwhelming in
such mass quantities.

We're kicking around the idea of installing floating bamboo "hardwood"
floors over the tile in a few rooms. It just seems like a waste to
tear all the tile out if we don't really need to; maybe the next owners
will want to take it back down to the tile, who knows?

Googling has produced contradictory results. Some sources say it would
be fine as long as the tile is flat enough (and what is flat enough?)
The floors look level, but the tiles are textured around the edges...
they look like they're supposed to have been chipped out of stone by
hand, or something.

If the tiles are more uneven than would be optimal, would a double
layer of foam underlayment help prevent problems?

Comments and suggestions welcome.

--
Jennifer