Quote:
Some dry set thinset now comes with flex-type capabilities. --The higher grades.
Your substrate's deflection is not supposed to exceed 1/360th degree of span. In addition, tiling to plywood, wonderboard, durock, hardibacker board, whatever, without a vapor-moisture membrane..........that's a no no too. --None of those products are waterproof.. Any plywood should be double thicknesses -- 3/4" marine-grade. Mastic is usually a disaster, and a waste of money..
|
ANSI A108.5 is what you need to read up on.
As far as "HUH?" goes, Hardie isn't waterproof. --And it never was. "Read" what you linked to.
