I have a tile floor laid a few days ago. They are self-adhesive vinyl tiles.
You can easily tell the hollow points from the solid points by tapping with your finger and you can also see large sections of tiles flexing in response to pressure. All of the tiles are at least 75% detached from the concrete some are 90-100%.
I expect every square inch to be firmly attached to the cement, but the office personel say "they need time to settle". My understanding is the curing time is 5 days and if they cure while not in contact with the cement that there's no hope.
I suspect that the tile was laid on a dirty floor, or the installer simply didn't press them onto the cement. Is there anything else that could cause this?, or maybe I just have unreasonable expectations.
Anthony.