Hi I am in the midst of a full renovation of my home, and now it is up to me to finish off the smaller stuff. One of the projects is tiling a shower stall enclosure. It has the pre-made fiberglass base which has been put in and plumbed. In fact all the plumbing has been roughed in. The drywallers used the "green board" around the stall area. My question is...can I use the Schluter Systems "kerdi" water proofing directly over top of the green board, then tile on top of that or do i have to put up cement board? I am hoping that just the kerdi will be enough. Also do I put a caulking seal at the base and the green board initially, then put on the Kerdi, then tile, then seal again at the base with caulking?
Any advise would be welcome. Newbie. Thanks Janet