I'm redoing the shower enclosure around my tub. I'll be using new tile. One layer of Hardibacker 500 over the studs (and over thick plastic) will give me 1/2 inch of buildup and will be flush with the surrounding drywall. The quarter round that I'm going to use on the edges seems to indicate that my base should be 1/2 inch beyond the drywall. Should I use two layers, or one layer over something else, or am I just thinking completely wrong?
The tub is surrounded by three walls. The walls where the tile/concrete board will end are currently standard drywall. Is this OK or should i replace this drywall.
I have already seen the debate on floating a new base vs. concrete board and have chosen concrete board. That is unless someoone wants to come in and float a new base for about the cost and time investment I would spend on installing concrete board myself.