hardibacker v permalayer

[shep]

has anybody used permalayer for tiling over floorboards? its like a spongy sheet, apparantly you pva the floor screed it, lay the sheet and tile over, theres also another product, cant remember the name but it consists of 18" sheets you simply stick to the floor and tile over, my merchant says one of his tilers swears by it, if it is successful it would save a lot of hassle, cut with scissors, risk of screw through pipe, cutting doors ,breathing in dust, im reluctant to try as i know hardibacker never fails me and only time will tell with new ideas but would love to know your opinions,had to rip up a floor today laid with timberflex 10 years ago, took all day, god that stuff sure sticks,was ripping up the face of the boards with it! thanks shep.

[Dave]

2 different products for different purposes.. One is a moisture stable over lay and he other is more of an anti crack membrane.. add no strength whats so ever.