QA

Question: How To Install Schluter Ditra

How thick should subfloor be for DITRA?

Proper Floor Preparation However, the plywood subfloor must be thick enough to support the tile floor. This means: A minimum of 5/8” nominal plywood or OSB thickness installed over joists on 16” centers.

How long do you wait to tile after installing DITRA?

How long do I have to wait before I can install tile on the Schluter®-DITRA membrane? Once DITRA has been installed on the substrate, tile can be installed right away. No need to wait for the mortar to cure.

What do you stick DITRA matting down with?

Installing DITRA Matting Apply a layer bonding adhesive like Ardex AF200 to the level substrate using a 3x3mm or 4x4mm notched trowel. Cut DITRA matting to size if required, then embed the anchoring fleece on the underside of the matting into the adhesive so that its entire surface is strongly bonded.

How thick should Thinset be under DITRA?

The Ditra membrane itself is 1/8″ thick, and Schluter recommends using a size 1/4″x3/16″ V notched or Square notch trowel 11/64″x11/64″ between the subfloor to Ditra, and 1/4″x3/8″ square or U notched trowel between Ditra to the tile.

Is DITRA better than cement board?

Ditra is waterproof, while cement board lets water through but won’t be damaged by it. This may make Ditra a better choice if moisture from below is a concern, such as with some outdoor applications or installations over concrete.

Do I need to tape DITRA seams?

Is it required to waterproof Schluter™-DITRA and Schluter™-DITRA-XL? Waterproofing the floor is not required, but can be beneficial in some cases. Since the matting is made of waterproof polypropylene, the only extra step necessary is to seal the seams and floor/wall connections.

Do you put Thinset under DITRA?

Since DITRA is impervious, it does not deprive the mortar of its moisture. This allows the cement to properly hydrate, resulting in a strong, dense bond coat. In general, we don’t recommend the use of modified thin-set mortar to set tile over the membranes because these mortars must air dry to cure properly.

Is it OK to walk on DITRA?

Since Ditra protects the tiles from any unnecessary movement, deflection, or moisture on the surface, walking over it before tiling or even after installing it for tiling will cause no harm to the mat. Ditra is used as an underlayment for tiling on surfaces like MDF or plywood.

Can I use DITRA over plywood?

DITRA allows for ceramic tile application over single-layer plywood or OSB subfloors on joists spaced up to 19.2″ (488 mm) o.c. Tile has been successfully installed for thousands of years by incorporating an uncoupling layer, or forgiving shear interface, within the tile assembly.

How thick is DITRA matting?

Ditra is 3mm thick and goes on probs 1mm adhesive bed.. and then tiles will bed on a solid bed of say 3mm to 4mm as long as the screed is flat there is no need to build up any higher. For the builder to finish 30 to 45 mm low is a bit OTT to make up with adhesive and tilesMar 22, 2010.

How much does a 50lb bag of thinset cover?

Thinset & Grout Coverage Info FLOOR APPLICATION WALL APPLICATION COVERAGE (based on 50lbs bag) 4 inch – 12 inch Tile 4 inch – 12 inch Tile 75 – 85 Sq Ft 12 inch – 16 inch Tile 12 inch – 16 inch Tile 60 – 70 Sq Ft 16 inch or larger 16 inch or larger 40 – 50 Sq Ft Tile thicker than 3/8 inch Tile thicker than 3/8 inch 40 – 50 Sq Ft.

How much height does Ditra heat add?

Based upon your description, your rough gain in elevation is about 1-1/2″, maybe a tad less, in gain above the subfloor, from the underside of the underlayment to the top surface of the tile.

Can you put Schluter over linoleum?

You’re tired of looking at that old, outdated linoleum flooring in your home or commercial space and you’re ready for something new. Well, the short answer is, yes, you can tile over linoleum flooring.

Can you tile directly on cement board?

Cement board forms a durable, stable base for tile, and it has no organic materials (unlike drywall, greenboard, or plywood) so it is not prone to mold, rot, shrinkage, or decomposition due to moisture. Ceramic tile laid over cement board is one of the most durable floor or wall surfaces you can install.

What can I use instead of backer board?

Glass mat gypsum board is a better choice. Sheets of glass mat gypsum are made from water-resistant silicone-treated gypsum, reinforced on both sides by fiberglass mats. DensShield is one common brand. It is easier to cut than cement board, it is mold resistant, and it has a built-in moisture barrier.

Can I tile directly onto plywood?

Tile can be laid on plywood. But do not install tile directly on the plywood subfloor itself. Use an intervening layer of a sheet of thinner plywood.

Do you have to use Schluter?

Schluter-Systems requires the use of Schluter SET™ , ALL-SET™ , FAST-SET™, or an unmodified thin-set mortar meeting the requirements of ANSI A118. 1 to set ceramic and stone tile, including large format tiles, over the KERDI membrane.

What Thinset is on top of DITRA?

To set DITRA over concrete or gypsum, Schluter-Systems recommends an unmodified thin-set mortar meeting the requirements of ANSI A118.

How long until I can walk on DITRA?

Pro-Tip: DITRA can be walked on immediately after; there’s no need to wait for the mortar to cure.

What size trowel is used for Schluter?

A 1/4″ x 3/16″ (6 mm x 5 mm) V-notched trowel or the Schluter™-KERDI-TROWEL is recommended.