I will be remodeling a bath wall replacing green board backing with Hardibacker cement board.. Questions:
At the corners where the cement boards meet, is it necessary to run a strip of alkali resistant tape down the middle and skim coat the tape with thinset? Or can I just caulk the corner and tile over it?
Hardi says their Hardibacker does not require a vapor barrier (i.e. plastic sheeting) under the Hardibacker first.. What do you guys say?