On Oct 13, 2:36*pm, "HeyBub" wrote:
N8N wrote:
...to put down tile?

reason I ask this question is I spent last weekend finishing scraping
up the old tiles in my laundry room (I'd done the other half months
ago; then finally I got sick of looking at the job half done and
shoved everything to the other side of the room and finished it.)
They were the semi-flexible kind, like you'd see in, say, an old
basement, or a warehouse or something. *I used floor stripper and a
paint scraper and stiff scrub brush to get up "most" of the old
adhesive, and it worked pretty well. *Unfortunately I find that there
was no edge to the tile where it enters the big room down there, it
just continued on right underneath the threshold, so I can only assume
that the whole basement was originally tiled, and then in the other
room this nasty Berber carpet was laid over top of it.

The whole reason for this exercise is that the tiles in the laundry
room were already starting to come up by themselves, so I assume that
the ones in the main room are in similar condition, so it would
probably not be a good idea to lay anything over top of them; they'd
need to be removed. *I think that long term we would like to pull up
the carpet and then lay down new tile and use an area rug over top of
it. *Question is, if the concrete floor "looks" clean, but might have
a few spots of glue here and there, is that clean enough to
successfully lay down new tile, or does it really need to be eat-off-
it spotless? *If the latter, how does one accomplish that?

The new tile needs to stick to something, else it will come up. Whether that
"something" is bare concrete or dried glue that is virtually one with the
underlying concrete is immaterial.

Assuming there are no "bumps" from the residual dried glue, your biggest
enemy is dirt and dust. Glue won't stick to dirt worth beans.

So, if the former glue is really, really bonded to the floor, you can put
tile on top.- Hide quoted text -

- Show quoted text -

Glue won't stick to dirt worth beans

Actually, glue sticks to dirt very, very well. That's why it doesn't
stick to whatever it is you want it to stick too.