For instance, as well as protecting tiled walls, Schlüter ®-KERDI also protects surfaces such as renders, plasters and plaster-board, whereas Schlüter ®-DITRA 25 can be used for uncoupling tiled floors from problematic substrates, such as timber.. Beside above, how do you use a Schluter membrane? This product is a waterproof, lightweight alternative to traditional cement backer boards. The Schluter Ditra XL was EXACTLY what I needed. Uncoupling Membrane Mortar Unmodified mortar to use with uncoupling membranes. Cement board can be scored with a razor blade and then snapped for a clean edge. uncoupling membrane Schluter ALL-SET®, Schluter FAST-SET®, or modified thin-set mortar Single layer of plywood or OSB Joists, I-joists, or trusses 16" (406 mm) o.c. These mortars have a little more Portland-cement content, which provides a stronger bond without latex. The choice between using DITRA or DITRA-XL depends on the nature of the particular project or application. In your case cement backer board would be a better choice than uncoupling membrane such is Ditra. It is a lightweight uncoupling membrane that will prevent tile and grout from cracking as the floor below moves and flexes. Ditra is known as an uncoupling agent—meaning the tile and grout won’t come apart when the subfloor moves or fluctuates—and prevents water from seeping between tiles and causing your subfloor to rot. The result of Schluter-DITRA’s performance is a tile floor with outstanding durability and resistance to cracks and moisture. Dry-set mortar is also much cheaper than latex-modified thinset, so it literally pays to use the right product. Shop at the lowest prices for custom uncoupling mats and backer board alternatives for natural stone and tile at Tile Pro Depot. Found K3/particle board under the flooring. The K3/particle board was glued and over stapled. joist spacing Limitations if your going to over lay with ditra you may of well used ply rather than cement board. Cement board (or Hardiebacker) is also sold in mat form and is … You could also go with a liquid membrane over the cement board. DITRA is way easier to install than cement board. It’s possible that a store clerk or even a tile professional recommended uncoupling membranes as a way to prevent cracked tiles. Before installing an uncoupling membrane, thoroughly clean your substrate to remove dust, grease, and other contaminants. I want to use Ditra for waterproofing. Using a flat trowel, Jim and Rich filled all the cut-back cavities with Ditra-Set. OIs there a good reason to do use a membrane? First, it’s light. Installing an Uncoupling Membrane. Fill DITRA Cavities. Therefore, it’s best to use unmodified thinset when working with an impervious installation membrane like Prodeso for installing radiant floor heating. ... Acts as an uncoupling membrane, reducing the risk of transfer cracks in tiles. Re: ditra vs cement board Tom, thanks for the response. Check the manufacturer’s specs of your uncoupling membrane to determine the best mortar products to use. They want you to use a different waterproof membrane and not an uncoupling membrane. Ditra vs. cement board has been discussed many times on this forum, Do a search and check around what has already been said. If you’re afraid of mold in the bathroom DITRA will help. DITRA is also noted for its ease of use when compared with materials like cement backer board. It strikes me as overkill. These products are popular on DIY television and are found at big box home improvement stores. the entire subfloor for uncoupling, crack isolation and waterproofing purposes and can eliminate the need for a second layer of plywood or concrete backer board in most tile installations. Uncoupling. Schluter uncoupling membranes provide the four essential functions for successful tile installation over a wide range of substrates, including plywood/OSB, concrete, gypsum, heated floors, etc. (i.e., modified, non-modified). Ditra acts as an uncoupling membrane, a tool used to separate the tile assembly from the substrate (concrete). 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. The “XL” product is specifically made for floors that have a joist spacing of 24”…bingo. … UNCOUPLING MAT MOrTAr. No. It provides a degree of protection against cracks in the tile due to expansion/contraction of the underlying substrate as well as deflection of the floor joists. By design, CI ++ Uncoupling Mat protects tile and stone floors from unsightly cracks caused by the constant expansion and … One flooring company said they would install an uncoupling membrane when installing tile over my 100-year-old basement laundry room's concrete floor. Something like Redgard, Hydroban, or Aquadefense. 2-Day Shipping in the Northeast Earn Cash Back, Learn More Fast Facts: • Provides crack isolation and waterproofing • Replaces plywood and cement board as tile underlayment You know, products like Ditra, Stratamat, and Redgard uncoupling membrane. I see on their website they have an uncoupling mortar, but that's not available to me. Making Tiled Walls Waterproof. There are no cracks in the concrete, and I … Durabase CI++ is an uncoupling membrane used for tile installations. Cement board is stiff and unforgiving. Premium, Large-and-Heavy-Tile and Thin-Set Mortar Uncoupling Membrane Mortar is a dry-set mortar for use in large-and-heavy-tile (formerly known as “medium-bed”) and thin-set applications for … Replacing vinyl flooring with tile. My cost for the same 54 sq ft was quoted as $96 which makes it about twice cement board. Uncoupling Membrane Mortar is a dry-set mortar for use in large-and-heavy-tile ... cement terrazzo, quarry tile and pavers (interior in dry conditions only) ... board (OSB). A saw will cut it too, but produces silica dust particles — a razor blade is the better choice. recently ive done a few jobs using a ply called sp101 its a specialist flooring ply ive used tons when laying karndean and now feel confident in using it for ceramics . I must be getting a different price on Ditra, maybe because I have never bought it before. Third, it can waterproof the wood subfloor. 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). Click to see full answer Hereof, can Ditra be used on walls? Kera Set is several bucks a bag cheaper, so unless Kera Bond is way nicer to work with, I'd have a hard time justifying the extra cost. stone tile to the surface of the uncoupling membrane. Custom Building Products has introduced a premium, cement-based mortar for the installation of ceramic tile and stone utilizing an uncoupling membrane. Also you might look into a foam board instead of cement board. Kera Set, Kera Bond? Reason is the cutback adhesive you'll be going over....Uncoupling membranes aka Ditra needs to be glued to the subfloor using unmodified thinsets…unmodified thinsets do not bond well to the cutback adhesives as good as modified thinsets do. Schluter Ditra is a polyethylene membrane with square dovetailed cavities and an anchoring fleece laminated to the underside. Well, Ditra is a premium product that is considered an "uncoupling membrane." This underlayment can be a preferred bonding material like cement backerboard or an elastomeric membrane. When removing the K3/particle board some of the top layer of … Details: If you expect to apply fiber cement board in areas of high water volume (tiling a bathtub, for example), you will want to install a barrier of 4 mm plastic behind the backer board. joist spacing, single layer OSB or plywood subfloor Areas of Application over any even and structurally sound OSB or plywood subfloor with 16" (406 mm) o.c. Additionally, there are dry-set mortars made especially for uncoupling membranes. ... 1/4 inch cement board is more of the standard for floors, not 1/2". The membrane neutralizes your tiles’ stresses and differential movement through its open rib structure, thus preventing cracking. It's important to note that latex-modified thinset can still be used between the membrane and the subfloor because it is not impervious. UNCOUPLING MEMBRANES Before installing ceramic or stone tile, most subfloors must be properly prepared with an underlayment or membrane to prevent transmission of movement that can result in cracked tiles or grout. This underlayment also acts as a waterproof membrane over moisture-sensitive subflooring such as plywood and OSB. Some products that may work would be Kerdi, ValueSeal, or USG Durock membrane. Uncoupling membranes come in rolls and are installed using thin-set mortar. It has been removed and what is remaining is 3/4 OSB. Steve and I will show you how to install DITRA today and make it 100% waterproof. Or someone even suggested going with the Ditra XL uncoupling membrane (Ditra XL is the thicker form). • For light-colored and translucent natural stone, a white mortar is recommended. Cement backer board is what it sounds like: Cement combined with cellulose and or wood fiber to make a board that resembles concrete. Maybe you’ve heard of uncoupling membranes. To install tiles successfully, an uncoupling membrane or forgiving sheer interface is required. Here are the supplies you need . Second, it stops tile and grout from cracking. For its ease of use when compared with materials like cement backerboard or an elastomeric...., Ditra is a polyethylene membrane with square dovetailed cavities and an anchoring fleece laminated to the underside reducing risk. Many times on this forum, do a search and check around what has already been said used. Forum, do a search and check around what has already been said a spacing. 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