If you want a tile floor then you you install tile on the floor.
Floor tile backer board has a dip in it.
Use a trowel to spread the thinset but before you do that be sure you ve scraped off old adhesive from any existing flooring you removed and vacuumed and cleaned well.
Tile installation requires grooves in the thinset to create air pockets which facilitate the adhesion of the tile.
Foam core tile backing board has two big advantages over other backer boards.
Backer board installation when tiling bathroom floor.
You do not need concrete backer board for a pre made shower surround panels.
Thick board is unaffected by water making it a great substitute for a mortar bed.
Thinset mortar is a type of cement used for the adherence of tiles and flooring to substrate or subfloor materials.
Installation of cement backerboard is always preceded by application of thinset mortar which fills low spots in the subfloor and anchors the backer board sheets.
A 1 2 inch thick 3 x 5 foot sheet weighs just 7 1 2 pounds compared with 45 pounds for a similar size sheet of cement board.
First it s super lightweight compared with the rest.
We chose the tub surround because it s highly leak prone and an ideal spot for cement backer board.
It is ideal for floors which my be susceptible to deflection or lateral movement such as expansion and contraction.
As a backing for floor tiles cement board should be laid on 5 8 inch or thicker plywood.
Spread a uniform layer of mortar on the plywood with a 1 4 inch notch trowel to support the backer board.
6mm no more ply is a pre primed tile backer board which provides a flat stable surface ready for floor tiling.
Cement backer board is used to create a smooth strong surface for laying tile.
Green board dry wall would be ok or for overkill you could use denshield it has a water proof membrane on it.
I do not understand your logic can you be more descriptive.
In this article we ll show you how to create a strong durable and waterproof tile base around your bathtub using cement board.