What is Schluter Ditra?

Schluter®-DITRA is a polyethylene membrane with a grid structure of square cavities, each cut back in a dovetail configuration, and an anchoring fleece laminated to the underside. The anchoring fleece is embedded in thin-set mortar to provide a mechanical bond to the substrate.

Beside this, should I use Schluter Ditra?

Why should I use Schluter®-DITRA in my tile installation? In order to protect the integrity of the tile assembly, an underlayment that performs multiple functions is required. DITRA is specifically designed to allow the installation of ceramic and stone tile over any even and load-bearing substrate.

Subsequently, question is, what is the difference between Ditra and Ditra XL? Ditra is 1/8" thick, and can be installed on single layer plywood or OSB subfloors that are over joists spaced up to 19.2" on center. Ditra XL is 5/16" thick, and can be installed on single layer plywood or OSB subfloors that are over joists spaced up to 24" on center.

Secondly, can Ditra be used with porcelain tile?

Since DITRA is impervious, it does not deprive the mortar of its moisture. Therefore, extended cure times would be required before grouting if using modified thin-set mortars between DITRA and ceramic tile, including porcelain tile.

What is the orange stuff under tile?

The orange stuff your talking about is ditra mat. It's used by lots of people around here including myself. It is a very good product. It is an uncoupling membrane that is thinsetted to the subfloor and allows the floor to move seperately from the tile when there's expansion and contraction.

Do I need Ditra over plywood?

For example, to set DITRA over plywood or OSB, a modified thin-set mortar meeting the requirements of ANSI A118. 11 is used. To set DITRA over concrete or gypsum, Schluter-Systems recommends an unmodified thin-set mortar meeting the requirements of ANSI A118. 1.

Is Ditra a crack isolation membrane?

Of course Ditra would not be used in a partial coverage situation like a crack isolation membrane might be used, but in full coverage situation over a cracked concrete slab could Ditra accomplish the same thing? The Ditra handbook says that installations over cracked concrete are ok.

Should I use Ditra or cement board?

1. Ditra is waterproof, while cement board lets water through but won't be damaged by it. With cement board, the tile is mortared to the cement board and the cement board is mortared to the substrate, so there's a chemical bond. This difference, Ditra fans would argue, makes it more resistant to movement.

How long after laying Ditra can I tile?

Once DITRA has been installed on the substrate, tile can be installed right away. No need to wait for the mortar to cure.

Is Ditra necessary on concrete?

James Morgan agrees with McEvers. Citing Schluter's own description of Ditra as an uncoupling membrane that permits differential movement between a lightweight substrate (such as a wood subfloor) and tile, Morgan says it's “entirely unnecessary” between tile and a heavy material such as concrete.

Is Schluter Ditra waterproof?

DITRA and DITRA-XL installations can be made waterproof with minimal effort. Since the matting is made of waterproof polypropylene, the only extra step necessary is to seal the seams and floor/wall connections. The result is a waterproof installation that will not suffer damage in the event of an unexpected water leak.

Can you grout the same day as laying tile?

If the installer uses a rapid set thinset which is appropriate for the specific tile being installed, then grouting the same day is possible.

What is best underlayment for tile floor?

Exterior plywood is an acceptable underlayment for tile and is preferred to interior-grade plywoods because the bonding adhesives used are waterproof. If water seeps through the tile installation to the underlayment, it will not cause the wood to swell, as happens with interior-grade plywood.

Where do I start laying 12x24 tile?

Firstly, you'll use the flat margin trowel to scoop your mortar our of your bucket and place it in a pile on your subfloor before you notch it with the 1/2 inch notched trowel. You'll also want to use this trowel to “back butter” your tile before you lay it down.

Can I use modified thinset over Ditra?

The problem with using a modified thinset is that it takes forever to dry over Ditra, especially with porcelain tile, being that it has an impervious barrier above and below. Schluter has said that if you use a modified thinset to set the tile that you can have to wait as long as 7- 10 days JUST TO GROUT.

Should I use modified or unmodified thinset?

It's important to note that latex-modified thinset can still be used between the membrane and the subfloor because it is not impervious. However, unmodified thinset should be used between the membrane and the tile.

How much thinset do I need for Ditra?

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). To bond tile to DITRA-XL, 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 35 - 45 ft2 (3.3 - 4.2 m²).

What is the purpose of Ditra matting?

Made of polyethylene, DITRA and DITRA-XL serve as a waterproofing layer that protects moisture-sensitive substrates, such as plywood/OSB. Free-space on the underside of the matting provides a route for excess moisture and vapor to prevent damage to the tile layer above.

How many square feet are in a roll of Ditra?

323

How much height does Ditra add?

Ditra makes 1/8" and 5/16" thick membranes. Ditra claims the 5/16" is specifically made to set tile flush with standard tile. The travertine is 3/8" thick.

Can you reuse Schluter Ditra?

I regularly use Ditra. You can reuse it if you can get the corners down flat and co-planar. Its not necessary to remove the old thinset, if it's well adhered. Schluter doesn't recommend using latex modified thinsets over Ditra and under porcelain tile.