Hi all:
Pretty soon I'll start putting up the concrete backer board for a tub surround, with the rest of the bathroom covered with drywall. The backer boards' edges aren't tapered and as I'll be hanging the sheet rock horizontally the vertical joint between the drywall and backer boards will be a straight butt joint.
I have two choices as to where I can place these joints:
1) There are studs 28" out from the tub's long wall where I can meet the backer board and drywall. The vertical rails of the tub's sliding glass doors can be positioned here, hiding the vertical seam up to the top of the door, leaving only the couple of feet exposed to the ceiling and needing to be taped a covered with joint compound. 2) About 5" further out from the tub are vertical 2 x 4's turned sideways that I could also use as the landing point, but the butt seam would be exposed from floor to ceiling, requiring I attempt to hide it as best I could using tape and joint compound.I do plan to run the tile out slightly past the tub itself.
Can I simply thinset the tile across the backer board/drywall butt joint if I place the backer board/drywall joint on those studs at
28"? I'm a bit concerned that the drywall, even hidden under the tile in this fashion, is too close to the tub and could suffer water damage over time.Anybody think one choice is better than the other and, if so, why?
Or, is there some other way I should go about this?
TIA.
Tom Young
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