Ditra Mat On Concrete

Whether you use ditra xl 1 4 inch hardibacker or whatever is up to you.

Ditra mat on concrete.

Ditra is good for new concrete. The type of thin set mortar used to install ditra depends on the substrate material. It s called ditra and it s specially designed to handle a number of challenges that come with tile flooring. Concrete mortar screeds gypsum based screeds radiant heated screeds and masonry mixed substrates.

Purchase a suitable trowel for the thin set mortar between the substrate and the ditra membrane. The floor is a 4 poured concrete slab on grade with moisture barrier and 2 sm insulation under the concrete. Tile over concrete subfloor ditra. To set ditra over concrete or gypsum schluter systems recommends an unmodified thin set mortar meeting the requirements of ansi a118 1.

Ditra is 1 8 3 mm thick which minimizes tile assembly thickness and reduces transitions to lower surface coverings e g carpet engineered wood and vinyl. Ditra matting is particularly useful when installing underfloor heating and provides a decoupling layer between the underfloor heating and the tiles. Un modified under and over the ditra. To start with choose a quality thin set mortar for sticking the ditra to the subfloor substrate.

Ditra matting can be used on a wide range of surfaces including. A seasoned floor that never sees moisture you could skip the ditra. What you can do is run that mat everywhere but only heat the parts that you want. Megabond from lowes or kerabond are good un modified thin sets.

For example to set ditra over plywood or osb a modified thin set mortar meeting the requirements of ansi a118 11 is used. Uncoupling membranes such as ditra available on amazon also manufactured by shulter systems take the place of traditional backer board on wood subfloors and concrete slabs. Schluter ditra mat on concrete slab we are in the process of building a cottage and i wondered if we needed the extra expense of the schluter ditra mat under our planned slate tile flooring. Select ditra or ditra xl underlayment depending on the.

Alternatively you could use ditra heat mat only where you want to heat but i would recommend another similar height tile underlayment to use with it. I m doing it now so i don t have to later.