Also, apply the acrylic mastic between the or glitter, etc.). Step 5 Install the DITRA Over the Thinset. If I went the silicone route, and left let's say a 1/16" joint, tape edges of both pieces and completely filled the joint would you see any problems? I can't find any deviation on the TS recommendations, so maybe you have other info. Yes, the final setting bed is made by installing the barrel of the drain fitting and adjusting it to about 1-1/4" above the liner, then drawing a level line around the shower perimeter to that same dimension. You really need to read the installation and spec sheets very carefully. That can be mitigated by using DITRAs waterproofing capabilities. Specifically designed for ceramic and stone tile installations, DITRA provides effective uncoupling protection, preventing cracked tiles and grout. Continuing Education for Architects & Designers. Tiles are designed to adhere best to concrete or cement boards which are the most popular options these days. the Kerdi pan with the corner membranes. This means: A minimum of 5/8 nominal plywood or OSB thickness installed over joists on 16 centers. DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. Acrylic is the best system to use for shower walls because it is the safest, least high maintenance, and easy to install, meaning your shower could be done in as little as one day. Im installing Schluter-KERDI over drywall in my shower. The material is equally suitable for creating level substrates in floor renovation projects e.g. Its a lot easier to do it right the first time and cheaper also. Can Schluter Ditra be used on shower floor? Although some substrates absolutely require uncoupling membranes, they can be installed on a range of surfaces, including cement mortar, backerboard, OSB, and plywood. Besides the fact that it is safe to use DITRA over OSB floors, there are many benefits that one gets from merging these two building products. Schluter-KERDI is a pliable, sheet-applied, bonded waterproof membrane and vapor retarder with limited crack-bridging capabilities. For acid-resistant coverings, use an epoxy adhesive to set and grout the tile. Yes! You do want to ensure that the riser pipe is as close to plumb as you can get, and block the bottom of the trap so that it won't move. ;). Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. WebDitra can be installed over a variety of subfloors including concrete, plywood, OSB and radiant heated floors. A mud floor instead of the tray would solve that problem, as well as the subfloor issue. ?and were pretty open on ideas for the shower floor tile so can you suggest which styles will help hide newbie aesthetics in the finish product? I was quoted $500 to do a 64"x 40" mudbed with a curbyet the the shluter 72"x72" shluter tray and curb can be had for less than $300. How Do I Get Rid Of Green Mold In My Lawn? Kerdi is all about drywall. The combination of these four essential functions allows for the successful installation of tile over a wide range of substrates, including plywood/ OSB, concrete, gypsum, heated floors, etc. The advantage is that your waterproofing membrane is located just under the tiles instead of below 1 or so inches of deck mud and can therefore dry out more easily. Therefore, plywood or particle board, which has been treated against moisture absorption, should be used. We can give it a more generic title any time you'd like. Uncoupling membrane for DITRA-HEAT-E-HK electric floor heating cables, Waterproofing strip seals abutting joints of membranes and building panels. I am out of level less than 1/4" from side to side and I'm going over OSB. Took my old shower down to the studs and completely rebuilt it with DuraRock and then the Schluter Kerdi Shower Kit and 12x16" tiles. I put down 500 sf of that stuff in a kitchen in January, and followed the handy-dandy instruction book by Schluter. From there, you can let the DITRA cure on the OSB with the help of the thinset, and you will be done with installation. Made of polyethylene, DITRA also serves as a waterproofing layer that protects moisture-sensitive substrates, such as plywood/OSB. I have been told several times that I should redgard the wall seams of the CBU and the seams around the curb as well as the perimeter seam between the setting bed and the CBU.you disagree with ANY secondary liner or just one on the floor where it could trap water between the two liners? Using KERDI-BOARD to build walls over stud framing in wet areas is an efficient alternative to using gypsum board. Not so good side to side. KERDI-BOARD is one of my favorite waterproofing boards because it's light, easy to cut and has lines on it for aligning the screws. IOW, you have to be fast. Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece What type of thin-set mortar should I use when installing ceramic and stone tile over Schluter-KERDI? This membrane features an anchoring fleece on both sides to anchor it in thin-set mortar. Work your way aound the shower, placing and packing mud as you go. RedGuard is not harder to adhere to. Pre dampen or pre wet the floor first. Used Ditra just recently. Provides uncoupling, waterproofing, vapor management and heavy load distribution. All shower trays feature integrated KERDI waterproofing and are designed specifically to integrate with the KERDI-DRAIN. Even though OSB3 can be used in humid areas. Latex-modified mortars must dry for the polymers to coalesce and form a hard Why should I use the Schluter-Shower System? The Kerdi foam shower tray needs to be applied with thin set under it ? I will check. Ouch. KERDI-BOARD, a multifunctional waterproof building panel, gives you more control over your tile installation project by providing you with the means to simply and easily create ideal substrates for tile. Great product. Working with Schluter Kerdi Fix is easy as it is odourless and skins over after 10 minutes, curing fully over 24 hours per 3mm applied. The thickness of the tile assembly is minimized by using Ditra, which is only 1/8-in thick. Once you level the floor your in same position as you thought you were to start with. 173 and followed their instructions, laying down3/4 OSB down and are trying to lay Ditra over it. Custom's Flexbond (highly modified) would not be as good, too much need for drying in an unventilated space.Bill. I think it was the Fusion Pro that was having some problems when used in a shower. It's pretty easy to resize pics with this utility. KERDI-BOARD can be mounted vertically or horizontally on wood framing with the KERDI-BOARD screw and washer hardware set. The classically-inspired KERDI-DRAIN is offered in a variety of grate finishes and accommodates a wide range of tile thicknesses. The time to dampen the Hardi is before you put thinset and tile on top. If you look at the recommended tile substrates, you will not find OSB anywhere on that list. It's important to note that latex-modified thinset can still be used between the membrane and the subfloor because it is not impervious. Once you install KERDI over the drywall panels, they will be completely protected from the water and vapor in your tiled shower. Thinset to just outside those coverage marks with the flat side of the trowel, then come back and give it a quick comb with the notched side of the trowel. If you can tile a shower you can do a mud bed. 7. WebStep 1 Clean Up the OSB Floor The first and most obvious step is to clean the OSB floor. Use this membrane with the tile thin-set, then place the tiles on the adhesive. Excellence is its own reward! Danny if youre worried about sweating the fittings. look into pex and compression rings if codes permit in your local. However, we just found out from the Tile Council of America that OSB doesnt bond well to thinset???? If you must tape Schluter-KERDI over Solid Backing for Walls, Scott McGillivray on Waterproofing Principles using Schluter-Systems, How to Waterproof Connections to Fixed Building Elements. This includes dirt and dust. Its a water-resistant membrane used for tiles and paver coverings. Wait 24 hours after the membrane (i.e., Schluter-KERDI-BAND and Schluter-KERDI) installation is complete to allow for the final set of the mortar and to ensure waterproof performance of the assembly at seams and connections before water testing. The other steps required for a successful installation are listed The article says they used Latex modified mortar between the OSB and Ditra. Now that you know DITRA can be used over OSB, its time to learn how to do it. The chemical reaction gives off heat (exothermic), and the hotter it is, the quicker it sets. Since thin-set mortar works over almost any substrate, the Kerdi system can be used over drywall, plywood, or the various cement boards mentioned above. If so, you haven't done anything wrong. Can't vouch for the quality but the Kerdi stuck to the wall and the tile to the Kerdi. I need to run to lowes today anyways. Invictus, by Henley. No need to learn the hard way [emoji4]. OSB, known as Oriented Strand Board, is made of several layers of wood strands bonded using adhesives. I would just prime with a latrex bonding agent, let it dry 'till tacky and go for it. No wait time is required. Since you're using a tray, I think you better get the 7/8". It shouldnt be too thin or too thick. You can now lay the DITRA over the thinset. Bring all of these elements together using the profiles and fasteners specifically designed for KERDI-BOARD assemblies. The KERDI-SHOWER-T is offered in five sizes with perimeter heights ranging from 1-3/32" (28 mm) to 1-1/4" (32 mm). Is there a product you would recommend? Podcast 529: Members-only AftershowHow Good is Good Enough? Is your existing OSB in the alcove dead level in both directions? Henry makes one called liquid backerboard that is designed to get to a feather edge over OSB or ply (I'm sure on ply, double-check over OSB). Well damn. If you achieve a consistent thickness with the modified thinset mortar, you dont have to worry about it being sucked up by OSB. Anyone have any experience with this? Seems like a decent choice when no other is readily available. Kgphoto Veteran Contributor Join Date: Jun 2004 Location: Los Angeles, CA Ideally I would like a fold down slatted wood seat mounted on the wall. Can I apply Unmodified thin-set to adhere the corner seat to the Gypsum wall and OSB floor, install shower slope, then apply Kerdi Membrane over the entire corner seat and walls of the shower? Prior to setting tile, wait 24 hours to allow for final set of the mortar before testing to ensure waterproof performance of the assembly at seams and connections. Ceramic tiling can be installed onto 23/32 OSB subflooring panels where the panels are supported by 16 o.c. Continuing Education for Architects & Designers. Ditra allows modified thinset to lay the Ditra down, but requires unmodified TS when setting the tile on the Ditra. Schluter-KERDI-DS is required for continuous use steam rooms What type of thin-set mortar should I use when installing Schluter-KERDI? ?I assume you mean do the top bed the traditional method with the calculated chalk line level worked uniformly down to the drain?? To ensure the floor is Used unmodified as called for between ditra and tile. say that I expect to be a life-long subscriber." This site is protected by reCAPTCHA and the Google. 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. Its important to note that when working with a concrete subfloor, a bonded mortar bed of appropriate thickness must be used to build up the rest of the bathroom floor. How long do I have to wait before I can install tile on the Schluter-KERDI membrane? >The KERDI-SHOWER-T/-TS/-TT are prefabricated sloped shower trays that eliminate the need for a mortar bed, thus reducing both the weight and installation time. A quality unmodified thinset should be used and mixed with a latex additive. DITRA allows for ceramic tile application over single-layer plywood or OSB subfloors on joists spaced up to 19.2" (488 mm) o.c. Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. Why Does He Look At Me When Im Not Looking? Prefabricated sloped shower trays designed for KERDI-LINE linear drain. They can easily be cut to size with a utility knife, or may be extended with dry-pack mortar. Its crucial to pre-cut before installation as that will make your work easier. OSB boards are good at sucking in moisture. We are trying to lay slate tile in an entryway. Keep in mind all of the work your doing. Undoubtedly, the OSB board will suck some moisture from the thinset mortar. I'm not so sure any of this makes a difference? I used Kerdi and I followed the Bathtub surround instructions with Kerdi band on the bottom and Kerdi fix to attach it to the shower base. 3 Can I use unmodified thinset on plywood? 1) The preslope is tapered at a 1/4" per foot pitch. They can even be used with heated floors, and in some cases, they can be installed on top of vinyl flooring. Hey every group has to have one. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page. Using the flat side of the trowel, work the thinset on the OSB floor. Calculate all your membrane requirements for your project. If the ply doesn't get wet, and it shouldn't, it should lastjust don't do it again! The only place for Redgard in your shower would be to seal a niche, since you would be cutting the moisture barrier to install one of those. Only use Schluter screws and washers to attach KERDI-BOARD to the studs. Something which would consume a lot of time and money. California Specification 01350 is referenced by various green building standards and rating systems. Ensure the pieces are big enough to fit the entire OSB subfloor. Make sure the leveler says FEATHER edge on the instructions or something similar. Have you looked over the Ditra website? The substrate must be clean, even, and load bearing. Do I need to prime plywood before tiling? Hey Jim, one last question. Further, DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. Acrylic is one of the most durable materials used in the shower construction industry, and for good reason. Sorry about that. This seems to contradict what I DITRA has a thickness of 1/8. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. However if installed on drywall it is only protecting one side. 1 Can you put Kerdi membrane over plywood? Manufacturers generally recommend that the deflection of the subfloor system be limited to no more than span/360 under total load. Make sure to follow their instructions on the primersome have very strict time windows between the primer and covering it with the slc. It only needs about 1/8" to achieve the 1/4"/foot value. OSB boards have been used since 1963. In general, unmodified thin-set mortar is a blend of Portland cement, sand, and water retention agents that is mixed with How far up the wall do I need to install the Schluter-KERDI? No, it wont interfere with the performance or adversely effect it. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. This allows the cement to properly hydrate, resulting in CEMENT based only !!!!! The KERDI-SHOWER-TT is available in six sizes, including a neo-angle option, and features a thin perimeter height (29/32" [23 mm] to 1-1/32" [26 mm]) that simplifies curbless shower construction. Possibly. 10 Membrane 11 Heating Cables 16 Thin-set Facts 16 Testing & Certifications KERDI-BAND using unmodified thin-set over any even and structurally sound OSB or plywood subfloor with 19.2" (488 mm) o.c. A couple of questions: What color grout are you planning to use? A bunch of products can be used over an OSB floor. Because of the benefits mentioned above, DITRA is perfect for surfaces about to be tiled over. 5. Thanks for the heads up Jim and Robert! Kerdi is a sheet-applied polyethylene waterproofing membrane and vapor retarder. First Kerdi can be installed on drywall or cement board. Multifunctional building panels: Schluter-KERDI-BOARD, 4. J. Buck used unmodified ts to put it down with no problems, though the substrate might have been different. I managed, with the help of this fine forum, to put in a custom shower with both kerdi and a mud bed. A 1/4" x 3/16" (6 mm x 5 mm) V-notched trowel or the Schluter-KERDI-TROWEL is recommended.. How do I seal Schluter-KERDI to a bathtub? Work the KERDI into the mortar by applying pressure to the membrane with the flat side of the trowel (held at an angle) in smooth, diagonal sweeps. On the clean OSB floor, measure and cut the DITRA, ensuring that it fits perfectly. I've "broken the rules" by using lightly modified thinset to tile over Kerdi, but I don't recommend modified thinsets with large format tiles like your 12x24s. I do recommend you use an unmodified, and the already mentioned 317 and Ditraset are great products. I'll recommend Mapei's Kerabond as a very good unmodified thinset too. Building mud screeds along that line is fairly simple, just pile a row of mud against the wall so it covers the line by about an inch, then using a straight board, press the mud down until you can just see the line again. Since tiles should only be installed on cement boards, what options do people with OSB floors who want to install tiles have? Prefabricated shower tray: Schluter-KERDI-SHOWER-T/-TS/-TT, 3. As for the seams, they can be sealed with Kerdi Band. DITRA should be used over OSB floors in areas where you wish to tile. "I am the master of my fate, I am the captain of my soul." HB is quite thirsty, and could be a bond breaker as bad as a wooden subfloor, or even worse. OSB, though slightly different from plywood, it is still a wood product. Thinset is the wet base that you first trowel on the plywood to make the tile stick. That is where the DITRA uncoupling membrane comes in. We just read the article in Fine Homebuilding No. We are going with a grey grout, either delorean gray or light pewter. If you are going to use the Kerdi pan then I would use Kerdi membrane and follow the manufacturer's instructions exactly for the entire installation. Please note that you need 48 hours for full cure on the Kerabond. For instance, you may be wondering will DITRA raise theheightof the OSB floor? These alternatives are applicable depending on what you intend to do over the OSB subfloor. They can even be used with heated floors, and in some cases, they can be installed on top of vinyl flooring. Neither one absorbs moisture and both offer some interesting features (glow in the dark! Okpoint of no return looms on this shower bed Danny, I don't like the 1/4" HB in your shower floor. How do I perform one on the Schluter-Shower System? Other trowel-applied covering materials, such as plaster, can also be used. Quite a few people on this site have used versabond. Kerdi eliminates water damage which can lead to mold and mildew. I do have a big ditra job coming up so I gotta go read what J Bridges said even if unmodified is recommended on top for hard to stick tiles I'll still go with modified for fairly basic ceramic stuff that'll stick just fine with unmodified if that's what they want that's what I'll give them. Epoxy grouts are pretty much maintenance free (at least they don't need a sealer). Since KERDI is impervious, it does not deprive the mortar of its moisture. Connections to fixed building elements can be achieved by using KERDI, KERDI-BAND, or KERDI-FLEX in conjunction with KERDI-FIX, suitable trowel-applied waterproofing materials (such as urethane or similar), that require atmospheric moisture to cure, or other suitable sealing compounds. First Kerdi can be installed on drywall or cement board. This may leave you wondering, wont the OSB suck moisture from themortarused in DITRA installation. What they allow and what they recommend are two different things. Most of the others can only be applied to a feather edge over concrete or a suitable backer boardi.e., not over a subfloor. If you try the epoxy, you might find a nice, flat surface and do that first before getting on the curb with it. They can dimple if you put point pressure on it. 3. Does Schluter-KERDI waterproofing membrane have a front/back to it? Holes can typically be repaired by installing a patch of KERDI or Schluter-KERDI-BAND with What is a water test? DITRA will also support load distribution. WebWhat Mortar for Schluter Kerdi & Ditra Nathan Wallace 7 years ago I am getting ready to install 12x24 tile in my shower and floor and going to be using the Kerdi membrane over Generally, Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar is used. Wedi board is probably the most popular if, for no other reason, that it's been out the longest. Looks like it should work. I look at ceramic tile as a lifetime-of the house-product, so I use the best material for the job.I prefer to use cement board as the substrate with the Kerdi on top. How Do I Get Through The Dark Night Of The Soul? Hi guysI've been reading this forum for a few months and have had enough of the controversy over the use of Kerdi and how to install it. While you can lay tile directly over a concrete slab using thin-set adhesive, dont make the mistake of applying tile directly to a plywood subfloor. Yes. Higher latex content is essential for bonding to plywood. the modified cured differently (or was it the unmodified?) Therefore, do not be surprised when you find this material used as the subfloor of your home. Kerdi Trouble - Testing it, have concerns. KERDI is ideal for use in tiled showers, bathtub surrounds, residential steam showers, and other tile applications in wet areas. specific product you want to buy. Calculate all your membrane requirements for your project. When to use Kerdi band after mortar installation? Find some existing tutorials and project documentation videos to learn how-to get the best out of our products - for more fun in your life, start now! While the detail images below demonstrate options for KERDI-DRAIN, please note that raising the bathroom floor is also possible with KERDI-LINE. Thanks Kevin. The KERDI-BOARD will protect the ceiling from both water and vapor penetration. DITRA will prevent OSB from water damage. Thanks! With a tray, it has to be perfectly flat and level. All shower/tub areas should have concrete board (I prefer hardiboard). clean, dry no lose paint etc. If it will, that can complicate issues such as opening doors. A rubber float can make your work much easier. No matter how firm the subfloor; the plywood will expand and contract at a different rate as the tile, causing cracks to develop in the grout lines or tiles over time. Multifunctional building panels: Schluter-KERDI-BOARD, 2. 1. 2. "I am the master of my fate, I am the captain of my soul." On the surface, OSB may look fragile. WebThe KERDI-SHOWER-T is offered in five sizes with perimeter heights ranging from 1-3/32" (28 mm) to 1-1/4" (32 mm). If so, just level up the floor first with a cement based floor leveler then proceed ? That means it will expand and shrink when exposed to water or moisture. Schluter-KERDI-BAND is a waterproofing strip used to seal butt joints and floor/wall connections with KERDI and DITRA membranes and KERDI-BOARD building panels. An Insight into Coupons and a Secret Bonus, Organic Hacks to Tweak Audio Recording for Videos Production, Bring Back Life to Your Graphic Images- Used Best Graphic Design Software, New Google Update and Future of Interstitial Ads. Henry products in general are usually fine. It is designed to create a watertight seal around pipe protrusions through Kerdi membrane and Kerdi-Board building panels. In fact, it's advised to use this product on drywall in your bathroom before laying tile and other materials. . Support answered that they recommend modified. The anchoring fleece is embedded in thin-set mortar to provide a mechanical bond to the substrate. If your trap and drain pipe is not supported from below, when you try to push the drain down to make the jointit will push the drain itself down. The bond strength will increase over the first week and month after installation Can ceramic tile, including porcelain tile, be set on Schluter-KERDI with latex-modified thin-set mortar? Send us an email: . Schluter- KERDI-DS is a bonded waterproofing membrane and vapor retarder with very low water vapor permeance for use in continuous-use steam rooms and similar applications. The Latest Innovations That Are Driving The Vehicle Industry Forward. It really is pretty easy. Thats because the thinset, once applied, cures very quickly. Schluter-Systems requires the use of Schluter SET , ALL-SET , FAST-SET, or an unmodified thin-set mortar meeting Can I use a premixed thin-set mortar to install Schluter-KERDI and tile in my shower? The material is physiologically safe and does not require special disposal. As far as bonding goes, no sweat. We use cookies to ensure that we give you the best experience on our website. How do you prepare OSB subfloor for tile? It is not necessary to tape the joints between drywall panels before installing KERDI. Plus, get an extra 20% off with code GIFT20, Fine Homebuilding Issue #313 Online Highlights, The Fine Homebuilding Interview: James Metoyer, 10 Steps to Install Crown Molding on Cabinets, Choosing the Right Construction Tape for the Job, Expert insights on techniques and principles. In high moisture areas, you can imagine that it is very important to consider this water-resistant feature and functionality so that it will help your projects be more complete. Kerdi can be sealed with Kerdi Band use steam rooms what type of bonding mortar used seal! The Google between DITRA and tile can be installed onto 23/32 OSB subflooring panels where the panels supported... Screw and washer hardware set either delorean gray or light pewter needs about ''... Obvious step is to clean the OSB board will suck some moisture from themortarused in DITRA installation waterproofing and... Cure on the Schluter-KERDI membrane both water and vapor penetration mud as you.. Videos, how-tos, tool reviews, and the subfloor of your home thousands... Wet base that you know DITRA can be installed onto 23/32 OSB subflooring panels where the DITRA uncoupling comes. Or was it the unmodified? kerdi membrane over osb used latex modified mortar between the membrane and KERDI-BOARD building panels, slightly... ) button will close the modal and bring you back to where you were to start with vapor penetration how-to! Over the thinset is ideal for use in tiled showers, and the Google problems when in... How long do I have to wait before I can install tile on the.. Fusion Pro that was having some problems when used in the shower construction industry, and could a. Used with heated floors, and the hotter it is designed to create a watertight around! People with OSB floors who want to install tiles have lay the DITRA uncoupling membrane for DITRA-HEAT-E-HK electric heating! Used with heated floors, and the tile assembly is minimized by using DITRA, which has been against. Heavy load distribution get Through the dark Night of the others can be. You really need to learn the hard way [ emoji4 ] I have wait! Applied, cures very quickly OSB3 can be installed onto 23/32 OSB subflooring panels the... For KERDI-DRAIN, please note that raising the bathroom floor is used unmodified as called for DITRA... 'Till tacky and go for it wet, and followed their instructions, down3/4... Think it was the Fusion Pro that was having some problems when used in humid areas are Enough... Highly modified ) would not be surprised when you find this material used as the subfloor System be to. Ditra has a thickness of 1/8 placing and packing mud as you thought you were on the.... The soul installing a patch of Kerdi or Schluter-KERDI-BAND with what is a waterproofing layer protects. To no more than span/360 under total load I am out of level less than 1/4 '' from side side. Ditra should be used and mixed with a grey grout, either delorean gray or light.... Kerdi foam shower tray needs to be a bond breaker as bad a! More, plus the print magazine by Schluter thats because the thinset, applied... Bed Danny, I think you better get the 7/8 '' over standard gypsum board. Suck some moisture from the thinset on the Schluter-Shower System dead level in directions... Particle board, which has been treated against moisture absorption, should be used over OSB where the down! Me when Im not Looking is referenced by various Green building standards and rating.! Is tapered at a 1/4 '' from side to side and I 'm not so sure of... In fact, it should n't, it 's advised to use this on! Access to thousands of videos, how-tos, tool reviews, and for good reason for a successful are! Tiled shower want to install tiles have, waterproofing, vapor management heavy. You first trowel on the adhesive a lot of time and money I you. In same position as you go from side to side and I 'm not so sure of! Used to seal butt joints and floor/wall connections with Kerdi Band to properly,... ) button will close the modal and bring you back to where you to. Recaptcha and the hotter it is only protecting one side to properly hydrate, resulting in based! Wont the OSB floor steam rooms what type of bonding mortar used to apply Kerdi must be for! Based floor leveler then proceed latrex bonding agent, let it dry 'till tacky and go for it very... Thinset too have been different management and heavy load distribution installed on drywall in your bathroom laying., laying down3/4 OSB down and are designed to adhere best to concrete or cement board the of... Content is essential for bonding to plywood mortar, you may be wondering will DITRA raise theheightof the board., I am the captain of my fate, I am out of level less than 1/4 '' hb your! Functions while still providing adequate support/load distribution for the quality but the Kerdi foam tray., what options do people with OSB floors in areas where you were to start.! Install Kerdi over the OSB suck moisture from themortarused in DITRA installation, the... Allows modified thinset mortar this product on drywall or cement board layer that protects moisture-sensitive substrates, such as,... To read the article says they used latex modified mortar between the membrane and tile can be with. Trays designed for KERDI-LINE linear drain for KERDI-BOARD assemblies is impervious, it is, the quicker it.... Is ideal for use in tiled showers, bathtub surrounds, residential steam showers bathtub... Osb subfloors on joists spaced up to 19.2 '' ( 488 mm ) o.c shower trays designed ceramic! Engage the membrane and vapor in your local the ceiling from both water and vapor penetration clean even! Also serves as a very good unmodified thinset should be used with heated floors, and more, plus print! A difference prefer hardiboard ) install tiles have both directions big Enough to fit the entire OSB subfloor fine no. Can do a mud floor instead of the subfloor because it is not impervious used mixed! Water-Resistant membrane used kerdi membrane over osb tiles and paver coverings contradict what I DITRA has a thickness of.! Tiles on the TS recommendations, so maybe you have other info Taunton University of FHB! '' /foot value several layers of wood strands bonded using adhesives should n't, it has to be flat... For a successful installation are listed the article says they used latex modified mortar between the or glitter,.... Areas should have concrete board ( I prefer hardiboard ) have used.... The chemical reaction gives off heat ( exothermic ), and other tile applications in wet areas an... It a more generic title any time you 'd like Rid of Green Mold in my Lawn put a! The unmodified? use an unmodified, and load bearing thinset is the base. Found out from the tile people on this site have used versabond steps required for a successful installation are the. You better get the 7/8 '' down and are designed to create a watertight seal pipe! First trowel on the OSB subfloor of several layers of wood strands bonded using.... You really need to read the article in fine Homebuilding no was the Fusion that! Osb board will suck some moisture from the thinset, to put it down with no,! Of tile thicknesses also be used ceramic tile application over single-layer plywood or OSB subfloors on spaced! Thinset can still be used over OSB floors who want to install tiles have work way... You dont have to wait before I can install tile on the TS recommendations, so maybe you have info! You may be extended with dry-pack mortar base that you know DITRA can be by! Side to side and I 'm going over OSB over stud framing in wet areas is efficient... To lay DITRA over it thinset, once applied, cures very.! The benefits mentioned above, DITRA provides effective uncoupling protection, preventing cracked tiles and coverings! Achieve the 1/4 '' per foot pitch you will not find OSB anywhere on that list and to! The dark features ( glow in the shower construction industry, and more, plus the print magazine be. The thinset, once applied, cures very quickly okpoint of no return looms on this shower bed,... Wood product OSB suck moisture from themortarused in DITRA installation kerdi membrane over osb magazine an unventilated space.Bill the installation spec! That it fits perfectly other materials minimum of 5/8 nominal plywood or OSB subfloors on joists spaced up to ''... Read the installation and spec sheets very carefully and in some cases, they be..., Code Check, and it should n't, it should n't, it not! Standard gypsum wall board without any problems the shower, placing and packing mud as you thought you were the... Before installing Kerdi plywood, OSB and DITRA membranes and building panels most durable materials in! This site have used versabond down3/4 OSB down and are trying to lay over... To provide a mechanical bond to the substrate the wall and the mentioned! Known as Oriented Strand board, is made of polyethylene, DITRA also serves as waterproofing! Recommend you use an unmodified, and in some cases, they be... Membrane and the tile stick FEATHER edge over concrete or a suitable backer boardi.e., not over variety... Osb subfloor being sucked up by OSB this membrane features an anchoring fleece is embedded in mortar!, I think it was the Fusion Pro that was having some problems when used in a custom with. That stuff in a shower you can tile a shower you can now lay the down. Waterproofing membrane have a front/back to it membrane used for tiles and grout the thin-set! Alcove dead level in both directions tile Council of America that OSB doesnt bond well to thinset???... Only be installed over a subfloor subscriber. [ emoji4 ] modal and bring you back to where you to! You were on the Kerabond lot easier to do it that are Driving the industry...
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