I'm a little undecided on how to proceed.
We are currently looking at tiling a fireplace surround. The structure is roughly 15' high, 8' wide, constructed of cement board screwed to structural steel stud on 16" centers. We are lookin at using 1 foot by 2 foot slate tiles 1/2" thick.
Question is, can we get away with just using thinset mortar-directly applying the tile to the cement board, or do we need to apply a coat of metal lath under a mortar bed first.
Any advice would be greatly appreciated.