I am fairly handy but I am having some concerns with the durock I just hung in our tub/shower. I made sure all joints were tight but am a bit confused on what to use to seal those joints. I have heard do not use a premix thinset, thatís fine but I also heard on the site that some people do their taping the same day they hang their tile. Just want some clarification on those two questions. Secondly, my durock runs a little over six feet in the shower and the there is greeboard. Should I use the thinset to tape those joints running the fiberglass tape and thinset onto the greenboard?