Last September, 2018, suddenly my floor made a lot of cracking sound. It sounds like firecracker. I noticed that our living hall floor started to pop up.
The vinyl floor also popped up due the tiles floor.
I called my contractor asking for quotation to repair the popped tiles. The contractor said popped tiles happened due to low workmanship e.g not enough cement under the tiles (it produces hollow sound if you step on the tiles) or due the not enough cement glue during the mixture.
Steps Repairing The Pop Tiles
1) Remove the Popped Tiles
2) Pour New Cement mixed with Cement Glue
3) Install New Tiles
4) Wait Till It Dries & Make the floor flat and smooth using patching compound
5) Install The New Vinyl