ok thanks - What this means is that I really need to reseal the grout and
keep the floor as dry as possible. I have had 2 different bath floors
installed and while the original builder installed floors were in mud, the
new ones were put on plywood after the mud was removed. Too bad I did not
know this before.
alan
"manhattan42" wrote in
message ...
Alan Wrote:
I had to lift up two loose tiles on a bathroom floor. The tiles were
installed about 3 years ago by a professional over a new plywood
subfloor
with a gray colored adhesive - or cement. I was able to remove the
tiles
easily without damage and need to reattach after drying the wood floor
-
some water got underthe tile. I have some extra tile but would not
rather
bother to rent a tile cutter etc unless really needed so I thought I
could
chip or scrape carefully to get some off. The tiles only have about
one
third of the surface wiht the cement.
Is there chemical that would help (phosphoric acid tile cleaner?) or do
I
just need to scrape? Do I need to get most of it off or just enough to
be
able to re cement it down and not have a high tile.
thanks
alan
You need to chisel off as much of the dried thinset mortar as possible
before resetting the tile. Acids will only harm the tile as well.
The best method still remains to cut a new tile.
You have an even bigger issue, however, and that is that the floor was
never properly prepared to recevie tile in the first place.
Tile should never be placed directly over a wooden subfloor, which is
why your tiles are coming up from water after only 3 years.
Tile needs to be installed over a concrete based backer board or onto a
several inch thick layer of mortar.
Wood subfloors will expand and contract with moisture, especially if
wet, and for this reason make unacceptable bases for tile.
Don't expect your repair to last if it goes back down directly over
wood subfloor.
--
manhattan42
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