Can the Ditra be placed flushed to the wall, or is the 1/2 margin required? One additional product is required, Schluter KERDI-BAND, a waterproof material used to seal the seams where layers of DITRA abut one another. Some exclusions apply. Using the spread lines, Jim troweled the Ditra-Set over half a section. What is the purpose of the 1/2 margin around the perimeter? These movements will damage tile and grout without the presence of a flexible, motion-absorbing material. If the mortar is too thick, it may not transfer to the bonding fleece under the DITRA as required. minimum underlayment thickness 11/32, 3/8 nom. Step 9: Once the DITRA is down, you can begin setting tile immediately. DITRA matting and tile help the unmodified thin-set retain more of its moisture as it cures, and this creates a stronger bond than modified thin-set can achieve. Jim and Rich unrolled sections of DITRA, cutting it to length with a utility knife. On the other hand, unmodified thin-set does not need air because it cures rather than dries. I love reading your articles and REALLY love the quality and finished product. What about using a latex-modified thinset? The KERDI-BAND is applied using unmodified thin-set mortar. Subsequently, drying takes place only through the tile joints. Note: Add water to your mixing pail before adding the thin-set mortar. Pro-Tip:Rich always began working the grout float in the middle of a section to stretch and press wrinkles outward. Place the tile into the thinset and push down with slight pressure to set it firmly into the mortar. Combing the mortar in one direction also helps, making it easier to collapse the mortar ridges when embedding the DITRA. i.e. Noticed that the guys doing the demo opted for leaving the matting to dry and then tiled the next day. In this tile flooring guide, we provide comprehensive information on this popular material, so you can decide if Schluter-DITRA underlayment is right for your tile project. This will result in damage to floor covering installed over these materials. Emrah Oruc is a general contractor, freelance writer and former race-car mechanic who has written professionally since 2000. I would like to know, if Merkrete 710 premium plus mortar, is a good choice to install Schluter Ditra underlayment. It must fill all of the cavities. Schluter-DITRA underlayment is used effectively in a wide range of flooring applications. Schluter-DITRA: Your Uncoupling Questions, Answered. After about 24 hours, itll be ready for tile, and meanwhile Jim and Rich are getting started on the over half. It can be confusing because when we hear uncoupling, we think of something being coupled or connected first. Full thin-set mortar coverage is essential for ensuring a secure bond and support for the tile. Unmodified thinset is a mixture of Portland cement which actually requires moisture to form a strong bond and achieves final set usually within 24 hours. Step 8: Trim the DITRA around drains, support posts, door jambs and other obstacles while the mortar is still wet or pre-trim the piece when fitting it, before mortar is applied to the subfloor. Check out the installation handbook for even more information and certifications. A Dozen Ways to Strengthen Your Remodeling Brand, The Empire Group Plans Large Build-to-Rent Community in North Phoenix, The Most Affordable Places to Retire in America in 2022, Yardi Matrix Reports Institutional Investment in Single-Family Rentals Is Rising, NAHB: Proposed Schumer-Manchin Legislation Could Affect Builders, New Conservation Community Lagoon Valley Materializes in the Bay Area, 7 Ways to Prepare Your Team to Sell in an Uncertain Market. Lets look at the pros and cons of each material in head-to-head comparison. The guys also cut around the support posts, door jambs and threshold. The result is that the tile is actually bonded only to the squares and not to the DITRA between the squares as much, but that ends up being OK. Pro-Tip:DITRA can be walked on immediately after; theres no need to wait for the mortar to cure. Home Depot Coupons, Coupon Codes, 10% Off Sales FALL/WINTER 2020-2021, AJ Madison Coupons, Sales, Coupon Codes, 40+% Off FALL/WINTER 2020-2021, Lowes Coupons, Sales, Coupon Codes, 10% Off, Target Coupons, Sales, Coupon Codes, 10%-60% Off FALL/WINTER 2020-2021, Sears Coupons, Sales, Coupon Codes, 10% Off FALL 2020/WINTER 2021. Schluter DITRA and DITRA XL Membraneare uncoupling and waterproofing membranes that are recommended for any even and load-bearing substrate such as: plywood and OSB; 24" o.c. In addition, when unmodified thin-set cures in the presence of air, it does not cure as strong because some of the water in it evaporates. Apply a thin layer of mortar with the flat side of the trowel, to produce solid contact with the substrate. Measure the room's dimensions with a tape measure. Be sure at least two inches of KERDI-BAND overlaps the floor. or as a leveling in between, for marble, and Red Guard between marble and float, to ensure transition point of a repair not to harm the warm wire,?? Step 2: Mortar application Apply thin-set to the area where the DITRA is to be installed, using the correct trowel size: x 3/16 (6mm x 5mm) v-notch OR A DITRA trowel: 11/64 x 11/64 (4.5mm x 4.5mm) square-notch. Yes, the rolls are 3'3" x 53'3" it is the 3rd option on this product page: https://www.masterwholesale.com/schluter-ditra-xl.html, we need to update the title but the SKU is S DITRA XL175. The DITRA-XL cost is $1.75 to $2.25 per square foot. this insures the plywood is clean and because you have pre moistened the plywood it wont pull moisture from the thin-set too quickly which can weaken its ability to set up firm without crumbling. Just keep a bit of distance from the chalk line so you dont blow it away with the hair spray. Apply a 10-inch wide strip of KERDI-BAND along all floor-to-wall transitions using thinset mortar. Wood will also be damaged by water, something this polyethylene membrane prevents. Items may arrive in multiple shipments. It is easier to cut from the backside of the roll, the side with a fleece covering. Once the DITRA membrane is in place and before any tile is set, the next step is to cover the seams with an 8 wide layer of unmodified thin-set centered on the seam. Schluter DITRA / DITRA XL ensures a lasting installation by allowing independent movement between the tile covering and the substrate. In short, the material neutralizes the movement like automobile shock absorbers. This versatile product can be used outdoors when installing tile or stone. It can be installed over a variety of substrates including plywood, OSB, existing vinyl, structural planks, and concrete. Option 1: Spray hairspray over the lines. Jim and Rich advise against spreading too much Ditra-Set at one time to prevent it from drying too quickly and because its easier to keep the DITRA lined up. Heat causes materials to expand, and they shrink again when they cool. truss and I-joist systems; green concrete; gypsum-based screeds; pre-stressed and post-tensioned concrete; and radiant-heated floors. Adjacent pieces of DITRA were butted against each other, and Jim and Rich were careful to avoid overlap (thereby creating a height difference). CBU structure does not offer this protection. Check out our guide to the many other types of underlayment. Best Laminate Floor Cleaner | 2022 Floor Cleaner Reviews, Best Mops for Hardwood Floors | 2022 Mop Reviews, Best Laminate Floor Cutter Reviews and Lowest Prices, How to Clean Laminate Flooring | 2022 Cleaning Tips, Kitchen Hardwood Flooring | What You Need to Know, 16 or 19.2 O.C. Note: Schluter and Bostik generously donated the DITRA and the Ditra-Set Mortar for this project, enabling the development of this Pro-Follow guide. This is the key to preventing the transmission of the movement that is the main cause of cracking in tile floors. Stresses between the concrete or wood subfloor can still cause tiles to crack and delaminate and for grout joints to crumble. Modified thinset must air-dry, and that can be a lengthy time-period because the mortar is sandwiched between impervious materials (the DITRA and the tile). Our expert design professionals are here to help, for free. Here are the tools and materials needed to complete this phase of the project. Schluter Systems, How to Calculate How Much Wire You Need for Your DITRA-HEAT Installation, The Last Word (We Hope) on Vapor Barriers, A Builder's Guide to Breathable Indoor Air, Building a Deck With a Welded Steel Frame, Housing Market Slows as Fed Takes Aggressive Approach to Combat Inflation, When Hidden Defects Complicate a Simple Deck Replacement. Heres an overview of the locations where you can take advantage of the performance DITRA offers. Schluter DITRA and DITRA XL Membrane are uncoupling / waterproofing membranes that are recommended for any even and load-bearing substrates such as plywood or OSB. 1 m x 30 m), and its lightweight and easy to cut. Other acceptable trowels are 1/4 x 3/16 V-notched or 5/16 x 5/16 V-notched models. Next, lift up a corner to check coverage. Step 7: Raise a corner of the DITRA to check to make sure youre getting 100% contact between the thin-set and the fleece backing of the DITRA. Smooth the DITRA by pushing it firmly into the mortar with a trowel so there are no lumps or high spots. Make sure to observe the open time of the thin-set. Apply a strip of KERDI-BAND and push it firmly in to the mortar with a trowel. The key to understanding why this membrane will greatly enhance the structural integrity and durability of your tile floor is to get a good handle on just what Schluter-DITRA is. Interestingly, tile installers have been using sand for thousands of years as a non-rigid layer of material between the substrate and the tile to prevent cracking. Mix the thin-set fairly loose but firm enough to hold a notch. Skip to the beginning of the images gallery, You're reviewing: Schluter DITRA and DITRA XL Membrane, Schluter ALL-SET Modified Thin-set Mortar, Schluter KERDI KERECK F Waterproof Corners, Schluter KERDI-KM Prefabricated Seal - 7/8" Pipe Seal (Set of 5), Schluter KERDI-FIX Sealant & Bonding Compound - White - Caulk Tube, Miracote Poly Fabric 40" x 1' - Sold by Linear Foot, Laticrete Blue 92 Anti-Fracture Membrane and Waterproofing Fabric, Protecto Wrap Whisper Mat CS - Sound Control Crack Suppression Membrane - Per Ln Ft, Schluter KERDI Waterproofing Membrane - Shower Pan Liner, NobleSeal CIS 6' - Crack Isolation Sheet sold by LnFt, Protecto Wrap AFM-WM Waterproofing Membrane - Sold by Linear Foot, Exclusively designed for ceramic and stone tile surfaces, Neutralizes stress between the subfloor and tile surface, eliminating the main cause of cracking, Waterproofs and allows moisture in the substrate to evaporate, Allows ceramic tile installations over single-layer plywood (at least 5/8" thick over 16" o.c. Pro-Tip:Its easier to cut DITRA from the backside. After the DITRA was in place, Rich used a grout float to firmly press the DITRA into the mortar, and the guys paid special attention to the edges. i copied above url to give reply for a forum question, can i use Schluter under warm wire,? Our goal is to deliver high-quality information to help homeowners decide which type of flooring to install in their homes. It is mortared to the DITRA underlayment, which in turn, is mortared to the subfloor. Also, what size trowel is recommended for laying the Ditra. Here are some tips to working efficiently with these membranes. Pickup for FREE today if ordered by 2pm local time. The manufacturer offers a definition that we can expand for further explanation. After the DITRA was laid out, the guys mixed more Ditra-Set, and again, they let the mortar slake for about 15 minutes. The guys got started by sweeping the floor with foxtail brushes to ensure a clean surface. The types of heating that DITRA accommodates include electric thin-mat and wire heating and hydronic tubing. There is no place for the water to evaporate and will not dry. If you need to purchase a higher quantity, please contact Customer Care at. the space is left for expansion and contraction. DITRA offers faster, easier installation than cement backer board, especially when the project requires a large amount of trimming around obstacles such as support posts, drains, bathroom fixtures and door jambs. Schluter advises that at this point its perfectly acceptable to begin laying tile with an unmodified thinset. How do I remove the memory from a role of DITRA? Roll out the DITRA and apply it directly on top of the mortar with the felt side down. I feel it weakens the system. Professional tile installers and DIY homeowners use Schluter-DITRA matting to prevent the cracking of tile and grout caused by movement substrate, the foundational material beneath the tile. Does Schluter recommend filling of voids before laying tile? Pro-Tip: Expect to use one 50 lb. Then comb additional mortar using the notched side of the trowel. When the substrate moves and it will in every flooring installationthe DITRA material flexes with it to prevent the movement from transferring through and causing the tile and grout to crack. (More Info). DITRA, as a decoupler, helps prevent substrate movement from damaging flooring; When using CBU, the tile is mortared directly to the board, and expansion or shifting of the subfloor is likely to crack or pop the tile or grout. Hi, we're Ethan, Jocie, Kim and Fred. Is it ok to use detra when transitioning from plywood to slab? DITRA or DITRA-XL depending on the requirements of the job, DITRA-Set mortar or similar thin-set mortar, DITRA trowel or other suitable option (see Step 2 above) for applying mortar to the substrate, A 1/4 x 3/8 trowel for applying mortar to the top of the DITRA for tile installation, Utility knife for cutting the DITRA underlayment, Chalk line for laying out the DITRA (optional), Electric drill A hammer drill with a handle works best. It comes in long rolls (i.e. I have walked the floor a few times and you can see why the product works. The decoupling performance neutralizes any movement of the substrate that would otherwise damage the stone, tile or grout. Does it need to be uniformly covered like in the pic? The tile assembly needs to be able to handle that which is why its important to incorporate an uncoupling membrane that allows for in-plane movement. Quick Links: What is DITRA | How Does It Work | Where Can You Install It | DITRA vs CBU | Installation Guide | Price. This item will be SHIPPED and should arrive in 714 days. You should see full contact between the fleece-webbing and the thin-set mortar. Read our Terms of Use and Disclosures page for more information. JLC subscribers have access to the July/August 2022 print edition at this time. Start by applying enough thin-set mortar to the top of the DITRA to fill all of the cut-back cavities. You normally dont want to do it in stages because the point of those waffles is to create a means of locking the tile to the ditra. I am confused as to how youre allowed to walk on DITRA that hasnt set up yet. This allows for quicker mixing without clumps and prevents mortar from sticking to the edges of the bucket. A quality tile installation includes an uncoupling membrane, such as DITRA, DITRA-XL and DITRA-HEAT. Heres a step-by-step DITRA installation guide. Step 1: Bring the matting up to room temperature, Step 2: Measure and cut the material needed, Step 3: Back-roll the section to take out the memory. Thanks for visiting! Any problems with thinset applied over filled voids? I think I learn something new with each article I read, no exception here. Use the directions on the package to determine how much water to use in the mix. There should be NO overlap. In addition, DITRA-XL and standard 5/16 tile creates a floor height that is level with standard 3/4 hardwood flooring. DITRA is fully waterproof; CBU allows water to pass through it, but is not damaged by the water. Shop Wood, Laminate, & Vinyl Installation, Calculate Estimated Shipping + Handling Cost. nice! However, over concrete Schluter recommends an unmodified thinset mortar like the Ditra-Set shown here. Shipping charges may apply. Ditto. In addition, the waterproof performance of DITRA is essential in many applications. I believe the answer to that is NO. So yes, be sure and leave a little space for this to happen. or over,? They also scraped away excess mortar that oozed underneath the drywall. See A Word About Unmodified Thin-Set below for an explanation. Many professional tile setters believe that the higher cost of DITRA is offset by the fact that it takes less time to install than CBU does due to its ease of use. . Pro-Tip:Precutting and laying out all the DITRA gives it a chance to flatten out. Abut the second piece of DITRA against the first on sides and, if necessary, ends too. That movement will cause tile cracks without a layer of motion-absorbing material such as DITRA. Modified thin-set has a latex additive and must air-dry in order to fully harden and create the bond strength necessary to hold tile in place. It has an 11/64 x 11/64 square-notched design. Note on Uncoupling: Youll come across the term uncoupling when discussing Schluter-DITRA with contractors or retailers; you may hear it described as an uncoupling membrane. When installed, the orange, square-pattern surface of the DITRA should face up. Ditra Also Serves As A Waterproofing Layer That Protects Moisture-Sensitive Substrates Such As Plywood/Osb. They laid it out keeping about 1/2 margin around the perimeter. For this project, the DITRA is being installed over radiant-heating element embedded in self-leveling mortar. Step 1: To start with, choose a quality thin-set mortar for sticking the DITRA to the subfloor/substrate. It is a waterproofing membrane and separation layer between tile and the subfloor, which is often made of wood. The thinset is also so thin (and absorbed by the fleece layer) that it isnt displaced by foot traffic either. Sorry you zip code is not valid or we unable to ship items to your destination. It is totally false that you can walk on it or tile immediately because the next day she called me and told me that there were big dips and unevenness because of where we walked on the ditra and squished the mortar with our walking on it. tiles adhering to the pre-filled voids? After the guys had laid out the DITRA, they used pencils and chalk to mark spread lines along each joint. bag of mortar per 150 200 sq. The major reason is that concrete can expand nearly twice as much as ceramic tile and grout. This versatile underlayment is available from Lowes, The Home Depot and other home improvement stores. Can you buy Ditra XL in a roll? What if I can see a lot of the orange after the application of that top coat? In fact, you dont even have to top coat before you lay tile you can put the thinset on in one step. DITRA is a versatile product and can do more than just provide an uncoupling membrane. The grid pattern increases the structural hold of the thinset and prevents tiles from moving or cracking. NOTE: Applying a thin-coat of mortar to the back of the tile with the non-notched edge, a technique known as back-buttering, is recommended when installing tiles 12x12 or larger. One reason was that they couldnt use the chalk line on the ditra mat. Now we dont know what to do with those gullies and dips. If you had correctly used a ditra trowel or one of the stipulated options at the correct angle your mortar bed beneath the ditra should be just over 1mm. Get all the latest information on Classes, Events, Sales and Offers. ft. of substrate. Were unable to ship this item to AK, GU, HI, PR, VI or foreign countries. How do I achieve proper thin-set coverage? We have adjusted the number of products entered as the maximum quantity threshold is 9999. Step 3: Embedding the DITRA First, apply the DITRA fleece-side down and solidly embed using a float or a DITRA roller. So the homeowner in the example here should be fine. That said, the most important part of the whole thing is the ditra itself, specifically its uncoupling from subfloor, substrate, etc. KERDI-BAND is a waterproofing membrane designed to bridge the seams in DITRA. They do this because its difficult to snap chalk lines over DITRA even though it takes longer to complete the job. Should You Consider Switching to Cost-Plus Pricing? If so what needs to be done at the transitions? In reality, the DITRA membrane prevents the coupling in the first place. The result of Schluter-DITRAs performance is a tile floor with outstanding durability and resistance to cracks and moisture. Or maybe I am wrong altogether and DITRA set is magical and does not conform to the laws of physics like gravity and displacement (the most likely explanation). Articles will be published online soon. I personally wouldnt prefill the ditra waffling as done in this project. Theyve used DITRA extensively on many jobs and highly recommend it, especially over cracked concrete. Pro-Tip: The guys say that the most likely mistake when installing DITRA is failing to fully seat the matting in the mortar. Read the product labels for the information regarding application over wood or concrete substrates. Part of the beauty of DITRA is that its easy to cut, and theres no minimum size requirement. Heres a tools and materials list for installing DITRA matting: It is essential to use unmodified thin-set over DITRA. When combing mortar, hold the trowel at a 45-degree angle. You dont have to worry about this acting as a bond-breaker, because the thin-set is mechanically locked into the dovetailed inlays on the topside of the DITRA. The goal was to make full contact between the fleece matting and the mortar. Schluter recommends mixing the thinset to a fairly fluid consistency (but still able to hold a notch).. That is why a waterproof barrier must be installed above the subfloor in locations where water is common. Double layer wood floor consisting of Select a thin-set mortar designed for application over the substrate you are working with. Its so nice to see professionals taking their time to do things right.
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