Ditra Mat Does Concrete Have To Be Level

Ok they may be suggesting ditra due to the age of the new concrete but its more likely they are suggesting it as a decoupling membrane to stop cracks where the old screen meets the new screed.

Ditra mat does concrete have to be level.

I have bump in the middle of the bathroom. Interestingly tile installers have been using sand for thousands of years as a non rigid layer of material between the substrate and the tile to prevent cracking. Wood floors interior ceramic or porcelain tile 5 19 2 488 mm o c. So i could probably level it either way and then put the ditra over.

The floor is 3 4 plywood and the tile would be 12x24. Schluter ditra simply takes the functionality of a sand layer to the next level of performance by also providing a waterproof vapor barrier. And both side i have 1 8 to 7 32 that i need to fill to make it level. Or is priming of the concrete substrate unnecessary.

Hi kate make sure to carefully review the article in the liberry about self leveling cements especially about cleaning preparing and priming the floor. Also i think i need to pull out vanity baseboards and toilet install ditra and then tile entire bath before reinstalling new toilet vanity and. Plan to use ditra mat which i ve laid several times before. Because the old screed isn t heated and because its older it will behave differently to the new screed.

About to tile a concrete floor in the basement of a home. I have talked to mapei and they told me that i shouldn t use self leveling because it will crack under ditra. Joist spacing single layer osb or plywood subfloor d w19 t 20 ceramic or porcelain tile schluter set schluter all set schluter fast set or unmodified thin set mortar. Any leveling of the subfloor must be done prior to the installation of the membrane.

Ditra matting can be used on a wide range of surfaces including. Thanks for the input kathy. Don t skip any steps. Because of this you may get cracks and the joints between the slabs.

Concrete mortar screeds gypsum based screeds radiant heated screeds and masonry mixed substrates. My only question is do i need to necessarily prime the concrete before then using thinset into which to embed the ditra mat. Ditra matting is particularly useful when installing underfloor heating and provides a decoupling layer between the underfloor heating and the tiles. Hi i have a wooden sub floor in my 1 2 bath that appears to be level to the naked eye.