From what I understand, Ditra is about 1/8" thick. Once installed, Ditra uncouples the new tile floor from the substrate preventing cracked tile and grout. Usg is basically the same thing as Kerdi. Coverage may vary with mortar consistency, angle at which the trowel is held, substrate flatness, etc. ft. 3 ft. 3 in. Schluter Ditra is installed on the plywood sub floor with a polymer modified thinset, using an 11/64" square notched trowel. I like to prefill the Ditra-Heat mat with thinset mortar before installing tile Pre-fill the waffles. Saldibs. How much thin-set do I need to install tile over DITRA or DITRA-HEAT? Movement Joints DITRA-HEAT and DITRA-HEAT-TB do not Then thinset, the membrane, then thinset and the tile. Schlüter-DITRA 25 dient in Verbindung mit Fliesenbelägen als Abdichtung, Dampfdruckausgleichsschicht bei rückwärtiger Feuchtigkeit und Entkopplungsschicht bei problematischen Untergründen. A fleece fabric is laminated on both sides of the mat. Most common tile floor underlayments are 1/4" thick, so Ditra is a great alternative if a shorter underlayment is needed. Exception: Certain moisture-sensitive stones, e.g., green marble, or resin-backed tiles may require special setting materials. x 98 ft. 5 in. Work the Ditra into the thinset with a rubber float or Wood Trowel. Will the thinset … x 1/8 in. For example, to set DITRA over plywood or OSB, a modified thin-set mortar meeting the requirements of ANSI A118.11 is used. • If installing DITRA over plywood or OSB use a latex modified thinset • The mortar to set the DITRA must be fairly fluid in consistency, but still able to hold a notch • “Key In” mortar – Apply a thin layer of mortar with the flat side of the trowel first, then comb additional mortar using the notched side. Schluter Systems: Custom Building Products: Schluter Systems: Name: Tub Surround Kit: Ditra 323 sq. Today we answer a lot of questions. The daltile parkwood beige ceramic floor and Wall Tile delivers a We’ve removed the vinyl tiles and thin underlayment plywood … best known manufacturer of these membranes. On the other hand, if you’re setting tile on a shower surround you want to use the minimum amount of water, e.g. How do you use the Schluter thin-set? 5) I would recommend not to walk on the Ditra till the next day to prevent breaking the bond between the Hardi and Ditra. Basically you want to use the maximum amount of water when mixing Schluter thin-set for DITRA or DITRA-HEAT. Post Cancel. [According to the TCNA Handbook for Ceramic, Glass, and Stone Tile Installation, this drying period can fluctuate from 14 days to over 60 days, depending on the geographic location, the climatic conditions, and whether the installation is interior or exterior]. Substrate Preparation verify that subfloor panels are properly fastened to framing members. Schluter All-Set is a specialized modified thin-set mortar specifically formulated for use with Schluter membranes and boards. All Schluter-Systems’ thin-set mortars, including the ALL-SET and FAST-SET modified varieties can be used to set tile over Schluter ®-DITRA, DITRA-HEAT, KERDI, and KERDI-BOARD products.Made right here in North America, Schluter thin-set mortars are formulated to ensure that you, the installer, get consistent and steadfast results with respect to sag-resistance, texture, and workability. Coverage may vary with mortar consistency, angle at which the trowel is held, substrate flatness, etc. (19 mm) tongue-and-groove with 1/8" (3 mm) gap between sheets. DITRA Mat is the ideal anti-fracture membrane for use under your tile application. Schluter says that it is possible to lay DITRA and tile over old VCT, but since you wrote that it came up easily I think that you did the right thing not doing that. 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). (22.68 kg) bag of mortar per 150 - 200 ft 2 (13.9 - 18.6 m 2 ). When it’s Schluter Ditra or Schluter Kerdi, make that product Ditra-set. 04-08-2008, 04:29 PM. For example, if you’re using ALL-SET use close to 6.5 quarts of water with a 50lb bag. Zur Verklebung … Trying out the new schluter thinset with usg waterproofing membrane. Therefore, extended cure times would be required before grouting if using modified thin-set mortars between DITRA and ceramic tile, including porcelain tile. I certainly intend to from here on out. Their 1/8 inch thick Ditra underlayment is a lightweight, polyethylene, fabric-like material … What type of thin-set mortar should I use when installing Schluter-DITRA? Thickness: One common misconception is that Ditra Heat is thinner than RPM. Thats what you do; thinset the Ditra to the substrate; then thinset the tile to the Ditra. Always. Portland cement-based unmodified thin-set mortars are dependent on the presence of moisture for hydration in order to gain strength. 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. Find the website that's made specifically for you. Schlüter-DITRA 25 ist eine Polyethylenbahn mit hinterschnittenen quadratischen Vertiefungen, die rückseitig mit einem Trägervlies versehen ist. Schluter Systems – Ditra mat. Thanks, May The issue is that under the Ditra, latex modified may not cure properly. Now the Ditra Heat Handbook doesn’t specifically tell you to not pre-fill the waffles. Schluter Ditra is a polyethylene membrane with square dovetailed cavities and an anchoring fleece laminated to the underside. Does not adhere. Also, the photos show the tile being set right over the orange heat mats. While Ditra Heat may be slightly thinner than RPM, the recommended trowel size for installation of Ditra Heat using thinset is a 1/4″ x 1/4″ square notch trowel. When sandwiched between two impervious layers such as DITRA and porcelain tile, drying takes place very slowly through the open grout joints. What type of thin-set mortar should I use when installing Schluter-DITRA? Above the Ditra, it shouldn't be a problem. This will give you the consistency required to set DITRA or DITRA. Ditra-Set Mortar (courtesy Bostik.com) A Cautionary Note: I mentioned above that thin set is made from portland cement. Polyethylene is not UV stable in the long term so the product should not be stored in places with prolonged exposure to … What type of thin-set mortar should I use when setting tile over Schluter, Using a Prefabricated Shower Tray and Ramp, Continuing Education for Architects & Designers. 04-15-2002, 05:15 AM. After determining correct trowel notch size, based on tile type and size, refer to the mortar coverage chart below, in the thin-set mortar Technical Data Sheet, or on the mortar packaging. 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. Unmodified thinset cures, which is not the same as drying with air, so that's why you use it in between the Ditra and tile. Schluter®-DITRA is specifically designed to allow the installation of ceramic and stone tile over any even and load-bearing substrate. This is even more important to consider in exterior applications that are exposed to rain, as there is the additional concern of latex leaching. The minimum height that my new dishwasher can be adjusted to is 33 3/4" and the cabinet height is 34 1/2". Designed to prevent cracking in applications when the underlying material is less than ideal, DITRA Mat is applied to the substrate with thinset mortar. ft. 4 ft. x 100 ft. x 0.12 in. The Ditra is attached to your flooring substrate by embedding the anchoring fleece in thinset (modified or unmodified depending on the substrate to which you are installing it). The estimated thin-set mortar coverage for each membrane is shown below. So, is there a thinset that will bond to old VCT adhesive? 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. When sandwiched between two impervious layers such as DITRA and porcelain tile, drying takes place very slowly through the open grout joints. For an acid-resistant covering, use an epoxy adhesive to set and grout the tile. So it looks like I've got 3/4" in which I need to fit the ditra, tile, and thinset. Uncoupling Underlayment for Tile: EasyMat 400 sq. Shop Schluter Systems All-Set 50 Pound(s) White Powder Thinset mortar in the Mortar department at Lowe's.com. Guest #6. In this way, how thick is Ditra when installed? Good Luck on your project. Peel and Stick Underlayment for Tile and Stone: Kerdi 3 … The thinset won't dry. (22.68 kg) bag of mortar per 150 - 200 ft2 (13.9 - 18.6 m2). However, it does tell you to start setting the tile right over the mat. The integration of DITRA’s uncoupling, waterproofing, load-distribution, and vapor management functions makes consistent results viable. Complete fail. Mix thinset mo… Several years ago Schluter Systems®, the maker of the Ditra and kerdi tile setting membranes, announced that the company would no longer support the use of modified mortars in the bonding of tile and stone to its membrane products. Ditra is impervious, and such large porcelain tiles are essentially impervious, so no air can get through with the tiles on top and the Ditra on the bottom. But my question remains, even if I don't use this contractor, I need to know if the Schluter Ditra is good for my situation and what's the potential installation problems I need to look out for when selecting contractors. Peter, every post I recall reading from JB "The Mudman" himself concerning Versabond and Ditra is on top of the Ditra, at least that's what I was paying attention to then, whereas I'm asking about under the Ditra, on top of plywood. I can however appreciate your position of using a thinset with more bite, and of course very much appreciate your response. To bond DITRA and DITRA-XL to the substrate: Use one 50 lb. Tile is installed over DITRA using the thin-bed method in such a way that the mortar becomes mechanically anchored in the square, cutback cavities of t… The anchoring fleece is embedded in thin-set mortar to provide a mechanical bond to the substrate. Schlüter ®-DITRA 25 is a polyethylene membrane with a grid structure of square cavities, each cut back in a dovetail configu - ration and an anchoring fleece laminated to its underside. Subtracting the tile and ditra thickness leaves me with 3/8" left for thinset. Since DITRA is impervious, it does not deprive the mortar of its moisture. How much thin-set mortar will be used with Schluter, Using a Prefabricated Shower Tray and Ramp, Continuing Education for Architects & Designers. If extended cure times were not observed, the results could be unpredictable. Schlüter®-DITRA-SOUND is a heavy polyethylene mat with a thickness of approximately 3.5 mm. Der Untergrund muss ebenflächig und tragfähig sein. To bond DITRA and DITRA-XL to the substrate: Use one 50 lb. 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). Secondly, how much thinset do I need for Ditra? Comment. 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 install ceramic (including porcelain) and stone tile over DITRA and DITRA-XL. I feel strongly about this. The type of thin-set mortar used to install DITRA depends on the substrate material. minimum subfloor thickness – 23/32", 3/4" nom. any leveling of the subfloor must be done prior to installing DITRA-HEAT and DITRA-HEAT-TB. Schluter ®-DITRA-HEAT integrates customizable, comfortable electric floor warming with the functions associated with DITRA: uncoupling, waterproofing, vapor management, and support to ensure a long lasting installation.. It is designed to be used under Please consult your stone supplier and Schluter-Systems for more information. This allows the cement to properly hydrate, resulting in a strong, dense bond coat. The term “portland” has become a trade term for construction cement, the powdery material that comes in large bags. Save yourself $10 a sack and stick with Versabond on this. Learn the reason to use the Schluter Ditra underlayment product for tiled floors. The estimated thin-set mortar coverage for each membrane is shown below.