Mastic vs Thinset in shower...
I just read the following in the This Old House e-zine concering tiling above a tub:
"Ferrante glued the tiles to the backer board with latex tile mastic, not thinset mortar." Gee Whiz...I thought using mastic, as opposed to thinset, in the shower was a BIG NO-NO. Can anyone explain why this recommendation to use mastic in the shower is valid? I goes contrary to everything I have read on this and other Forums. From what I understand, Mastic is the premixed stuff in a tub and Thinset mortar is a powder prepared by just adding water, and that only Thinset should be used in the shower wall area.