Re: Tile installers?
I am not a pro tile installer. I do mostly exterior stone work and brick pavers. Most of the work around pools. I have done 4 standard bathtubs and two built in showers over the last 8-10 years. All still in good working order and no leaks. From what I remember researching it for the first one I did, the advantage to the kerdi/schluter type system was time savings. I think the materials were actually more expensive. If YOU are the one installing it, I would probably just replace it all with the cement/hardi board like others suggested. Its not that much more work, and you don't have to worry about selling someone a shotty house. Also, there are some really good water proofings on the market such as red guard. If you decide to use those, you want to bypass any vapor barrier behind the cement board. It can basically trap moisture between the water proofing and vapor barrier.