1) Where the shower would be installed a hole was dug thru the existing cement and plumbing was rerouted.
2) Cement was then poured to bring the porch floor to the level of the rest of the house. Except where the shower would be place there was a deep recessed area.
3) A shower pan was then installed and then more cement was poured to bring the shower floor to the drain level.
4) Then a tile floor was installed.
Two months after the completion of the job the grout started cracking and coming up. Then tiles started cracking. It is believed the cement moved and caused this problem.
The floor is going to be taken up. What measures can be taken to ensure we don‚Äôt have the same problem all over again? How can the cement be bonded to keep it from shifting? Is there a special cement that should be used in the shower area?