QA

What Size Trowel For Ditra

For DITRA use a 1/4″ x 3/16″ (6 mm x 5 mm) V-notched trowel, 5/16″ x 5/16″ (8 mm x 8 mm) V-notched trowel, or the DITRA trowel, which features an 11/64″ x 11/64″ (4.5 mm x 4.5 mm) square-notched design, is recommended.

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.

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.

What Thinset do you use for DITRA?

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

Do I need DITRA over plywood?

Ditra should be installed on plywood subfloors using modified thinset mortar, not unmodified. Modified thinset mortar adds latex polymers to increase its adhesion and strength. This makes it work better with plywood. Unmodified is adequate for use on concrete floors.

How much mortar do I need for DITRA?

To bond DITRA and DITRA-XL to the substrate: Use one 50 lb. (22.68 kg) bag of mortar per 150 – 200 ft2 (13.9 – 18.6 m2). To bond tile to DITRA, using a 1/4″ x 3/8″ (6 mm x 10 mm) square- or U-notched trowel: Use one 50 lb (22.68 kg) bag of mortar per 40 – 50 ft2 (3.7 – 4.6 m2).

How do you stick down a Ditra mat?

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.

What is the thickness of Ditra heat?

DITRA-HEAT allows you to protect the integrity of your investment and enjoy the luxury of heated floors. Only 1/4″ (5.5 mm)-thick, DITRA-HEAT provides the thinnest possible assembly without sacrificing performance.

Can you use modified thinset under Ditra?

Since DITRA is impervious, it does not deprive the mortar of its moisture. 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.

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.

Is there a difference between Thinset and mortar?

What is Thinset Mortar? The word “thinset” is sometimes used interchangeably with “mortar,” because it’s a type of modified mortar made specifically for tile. Thinset is made of sand, water, and cement, and can also contain additives for increased bonding, water resistance, and flexibility.

How long does Thinset take to dry under DITRA?

When an excessive load is applied onto the Ditra surface after installation, the load is transferred to the substrate through the cavity. Ditra-set only takes 25 to 30 minutes to dry. These advantages allow you to walk on the Ditra surface before tiling or even right after installing the Ditra.

Can you walk on DITRA after install?

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

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.

What do you put on subfloor before tiling?

Install a cement backer board to set a good base for your tile and prevent any movement-related cracking of tile or grout. Backer board is screwed down to wood subfloor using specific backer board screws and mortared down with tile adhesive mortar plywood subfloor.

How thick should subfloor be for DITRA?

DITRA allows for ceramic tile application over single-layer plywood or OSB subfloors on joists spaced up to 19.2″ (488 mm) o.c. DITRA-XL is 5/16″ (7 mm) thick, which permits even transitions between tile and 3/4″-thick hardwood flooring.

Does DITRA need Schluter?

DITRA is specifically designed to allow the installation of ceramic and stone tile over any even and load-bearing substrate. The integration of DITRA’s uncoupling, waterproofing, load-distribution, and vapor management functions makes consistent results viable.

How much thinset should I use?

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 does a 50 lb bag of mortar cover?

A 50-pound bag of thinset will cover a minimum of 50 square feet to a maximum of 95 square feet.

What is unmodified thinset mortar?

In general, unmodified thin-set mortar is a blend of Portland cement, sand, and water retention agents that is mixed with water by the user. 1 when mixed with water). Unmodified thin-set mortar may also be referred to as dry-set mortar by the manufacturer.

Can I use Ditra mat on floorboards?

Installation of ceramic tiles to Schlüter®-DITRA on timber floors with UltraTile adhesive: Using a 3x3mm notched trowel, apply a layer of UltraTile ProFlex SP over the floorboards to a sufficient depth to secure the fabric fleece on the Schlüter®-DITRA underside of the matting.