I am finishing construction of my steam shower and need to decide on how to finish the sloped ceiling.
The shower has kerdi on walls and ceiling, so that limits me to using an unmodified thinset. I emailed Schluter and they told me that I could not use any kind of adhesive and needed to stay with the thinset.
The walls and floors will be tiled.
The ceiling is 6' x 4', with a slope along the short wall - a 4" slope for 1" per foot. The ceiling also has 3 protrusions - 2 round lights and a round exhaust fan vent.
I am thinking that tiling the ceiling will eliminate the benefit of the slope, as water will roll to the end of the tile and then drop - never reaching the far wall. I was considering using 4' t&g cedar for the ceiling (to allow an unbroken path to the far wall so that the water drops can run), but if I'm limited to thinset- that won't work too good with cedar will it? Perhaps I can put a ledge near the top of the tiles to support the cedar?
Just looking for some ideas that some of you may have on how I could finish this sloped ceiling and prevent water drips in the middle of the room.