...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?