Ditra Mat Does Concrete Have To Be Level

Hi i have a wooden sub floor in my 1 2 bath that appears to be level to the naked eye.

Ditra mat does concrete have to be level.

About to tile a concrete floor in the basement of a home. Plan to use ditra mat which i ve laid several times before. Ditra matting is particularly useful when installing underfloor heating and provides a decoupling layer between the underfloor heating and the tiles. I have bump in the middle of the bathroom.

My only question is do i need to necessarily prime the concrete before then using thinset into which to embed the ditra mat. Don t skip any steps. So i could probably level it either way and then put the ditra over. Don bell denver co.

The floor is 3 4 plywood and the tile would be 12x24. Do i need to use a leveling product before using ditra or will ditra take care of any minor inconsistencies. 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. 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.

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. Or is priming of the concrete substrate unnecessary. Thanks for the input kathy. Ditra and ditra xl were designed and tested for thin bed ceramic tile and natural stone applications.

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 matting can be used on a wide range of surfaces including. Because the old screed isn t heated and because its older it will behave differently to the new screed. Hi kate make sure to carefully review the article in the liberry about self leveling cements especially about cleaning preparing and priming the floor.

Any leveling of the subfloor must be done prior to the installation of the membrane. Wood floors interior ceramic or porcelain tile 5 19 2 488 mm o c. Because of this you may get cracks and the joints between the slabs. Schluter ditra simply takes the functionality of a sand layer to the next level of performance by also providing a waterproof vapor barrier.