Hello, my apologies if this is the wrong place for this post as I am new to the site. I’m hoping everyone here may be able to shed some light on some issues with a tile shower I recently had installed.The tile is floor to ceiling in a residential alcove shower. The installers used 1/2" CBU for the first 5’ up from the floor and left the previous paper-face gypsum board on the remaining portion of the shower walls and tiled over it. Also, the pan pre-slope that was installed does not meet the lower drain flange, leaving a low area around the flange that is causing the water flow to away from the drain and under the pan. I believe this is all incorrect. I’m an engineer but definitely not a tile expert. Is there a specific inspector certification or licensure I should inquire about when searching for someone to inspect the shower? Also, is there a forum or source of inspectors in the Indianapolis, IN area?
Thank you to all that may be able to help!!