best surface for tile - hardiboard or self-leveling mortar??????
I'm probably calling the terms incorrectly calling it surface and self-leveling mortar, but if the subfloor is level and sound, what is a better surface to lay tile on: hardiboard or the self-leveling mortar that produces a very flat surface? One friend says one is the way to go, the other swears it is the other. I know pros seem to go the self leveling route more often. Is one cheaper, faster or otherwise better if floor levelness questions are not major? How about if the subfloor is just borderline regarding supporting the weight of the tile? Does the hardiboard win out in that case or is the self leveling stuff stiff enough?