I want to install marble tile in our shower surround and as a result there are no trim pieces so I have to fiugre this out. The walls are a current layer of green board and I'll be adding a 1/2" layer of cbu. Now the tricky part... there is an outside corner that I want to tile to and it is the intersection, covered by corner bead, of drywall and green board then cbu on top of the green board. What should I do to make the corner look neat (I plan on tiling right up to the corner), use drywall mud on the edge of the cbu to flatten it out, remove the corner bead and attact it to the cbu and drywall? Any suggestions? Thanks, Damon

I plan to embark on my 1st tiling job - laying porcelain tile on a 28x12 lanai/porch (enclosed on 3 sides and open on the other). The concrete slab is currently covered with thin glue-down indoor/outdoor carpet which pulls up easily, but does leave a very thin coat of carpet adhesive behind (I've tried scraping it manually and it's going nowhere). The floor is "wavy" in areas (i.e. not flat). The dips seem to be about 1/2" lower than the rises. I'm looking for recommendations as to whether I should use self leveling compound to plane the floor, some other product to patch the lower areas, or whether those tolerances are acceptable for building up the thinset in the low areas as I lay the tile. Also, I'm considering 18" versus 13" tile. I'd prefer the larger, but have been told it's easier to adjust for level using the smaller tile. Any thoughts on that? Any advice would be greatly appreciated.