We are having a marble tile shower built in the new addition and are getting different recomendations from tile installers on construction techninques. Currently the shower area has a backer of greenboard. The three recommendations that we have are
1. Apply a waterproof membrane over the greenboard and then tile.
2. Remove greenboard, install Denshield or similar and tile.
3. Remove greenboard, install tar paper, chicken wire and then mud, tile on top of this.
Which option is best? Is there a fourth superiour option? In order not to bias this scientific study, 🙂 I will not state mine or my wifes preferences.
Thanks in advance for your time.