Cement Board Or Ditra For Tile Floor. Cement board over top, or rip out what i had just finished and put cement board directly over the plywood subfloor? Cement board did nothing to improve the strength of the floor assembly. They do not make thin set.
Ditra attains good adhesion when tiles are layered to the substrate and can, therefore, be used for both floor and wall coverings. The concrete slab has an expansion joint (or maybe control joint) from the front door to the back door. Will laying ditra over the cement board on top of this issue i have created help me, hurt me, or is it just a waste at this point.
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Ditra is more expensive, maybe, but its easier to install. Using ditra, normal cracking which occurs in concrete slabs will not adversely affect your tiled floor. Will laying ditra over the cement board on top of this issue i have created help me, hurt me, or is it just a waste at this point. When you consider the cost of the cement board, the screws, mesh tape and the time involved to handle the cement board, the costs are probably similar.