In fact, it's advised to use this product on drywall in your bathroom before laying tile and other materials. It means "Greenboard" can still be used in bathrooms (and other areas), it just cannot be used as a backer for tile in a shower or tub surround. Danny, download Irfanview (http://www.irfanview.com/), a free image viewer/editor. To allow for greater movement, the center section of the KERDI-FLEX can be tucked into the cavity of the expansion joint prior to bonding. Thanks again Robert. The time between liquid and starting to set can be quite abrupt. Using KERDI-BOARD to build walls over stud framing in wet areas is an efficient alternative to using gypsum board. There are two methods to seal KERDI to a bathtub. Air bubbles must be avoided. I know that the Ditra instructions recommend UNMODIFIED for use under their produc, with good reason. Did the article get this detail grotesquely wrong? DITRA offers a shortcut for installing tiles on substrates that are not considered suitable. Ditra is 1/8-in thick and is designed for ceramic and stone tile. It can be used in areas not subject to direct water exposure (tub/shower surround), and areas of noncontinuous high humidity (bathrooms). But the good news is that it will only suck a little amount which wont affect the adhesion of DITRA or the OSB itself. Thin-set mortar takes time to cure. I think cx is right. Schluter-KERDI-FLEX is a flexible polyethylene waterproofing strip used to seal movement joints over DITRA in specialty applications where large movements are expected, i.e. This way any moisture that makes it past the grout can't cause any damage. Its essential to use the recommended products to avoid disasters. The nominal 5/16 (8mm) thickness minimizes tile assembly thickness. 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. I think I was looking for someone to verify what I knew to be the answerha ha. DITRA should be used over OSB floors in areas where you wish to tile. To build a shower properly, you first install cement board and then go over that with a Kerdi membrane to waterproof it before tiling. The other steps required for a successful installation are listed I have two pieces of marble that will need to be cut to create a shower curb cap (2-42" pieces to join to fill a 60" curb). I installed my Schluter-KERDI membrane yesterday. 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 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? Holes can typically be repaired by installing a patch of KERDI or Schluter-KERDI-BAND with What is a water test? To ensure the floor is Please refer to the Schluter-Shower System Installation Handbook How long do I have to wait before I can install tile on the Schluter-KERDI membrane? Not so good side to side. Thanks for the reply Robert. The only time I've used Ultraflex with a Schluter product is when I adhere Ditra to a plywood substrate, if you put Ditra over a SLC you need to go back to unmodified. ;). If you intend to install another type of floor, such as hardwood, there is no need for DITRA. What about if you prime/seal the osb first. For all the substrates listed in this Handbook (e.g., gypsum board, cement backerboard, etc. Does Schluter-KERDI waterproofing membrane have a front/back to it? With the KERDI-SHOWER-TT thin shower tray on a wood subfloor, you can build up the rest of the bathroom floor by installing either a 5/8" or 3/4" plywood/OSB panel on top of the wood subfloor along with DITRA or another Schluter-Systems uncoupling membrane. Makes it real simple to install and when done right good for 50 years. Press KERDI fully into the bond coat. 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. Its a lot easier to do it right the first time and cheaper also. That is where the DITRA uncoupling membrane comes in. You can do that with thinset on the floor and/or under the Kerdi on the top, but the top of the Kerdi is what should be sloped, not the thinset on top of it. Cover the joints with KERDI-FLEX. As far as bonding goes, no sweat. I can confidently Step 2 Cut the DITRA Into Smaller Sizes. Mark the slope or high point on the walls. Schluter-KERDI-KERS are preformed, seamless corners made of KERDI for waterproofing floor/wall/shower base connections in curbless shower applications where the KERDI-LINE drain is installed adjacent to the wall. But its pretty strong, which is why it is commonly used on floors. As I wind down my shower project, the wife aka boss are in grout mode. In a perfect job, it will waterproof. Start your subscription today and save up to 70%. This membrane features an anchoring fleece on both sides to anchor it in thin-set mortar. WebI asked Schluter support about type of thinset under Kerdi shower tray to be installed over OSB. For good new rock music, click on: http://www.wolfmother.com. PVA white glue, Acryl 60, weldwood, the list goes on and one.Any tile supplier will have something. KERDI has been evaluated according to the Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers, Version 1.1 for California Specification 01350 and found to comply with the VOC requirements. Schluter recommends different sizes. . Send us an email: , Using a Prefabricated Shower Tray and Ramp, 1. Uncoupling membrane prevents cracked tile and grout. Waterproofing Corners: Schluter-KERDI-KERECK, 1. With the KERDI-SHOWER-TT thin shower tray on a wood subfloor, you can build up the rest of the bathroom floor by installing either a 5/8 or 3/4 plywood/OSB 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. If it will, that can complicate issues such as opening doors. This is a dialog window which overlays the main content of the page. and since the plastic did absorb any moisture . it did cure as quick and the "excess" moisture could screw up the grout. 3. Tiles can be installed directly on KERDI using the thin-bed method. Latex-modified mortars must dry for the polymers to coalesce and form a hard Why should I use the Schluter-Shower System? Quite a few people on this site have used versabond. 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. A.Sean Gerolimatos, technical services manager for Schluter Systems, responds: With a few exceptions, unmodified thinset mortar is required for setting ceramic and stone tile over Kerdi membranes (800/472-4588, www.schluter.com ), as well as for bonding overlapped seams and connections to Kerdi drains. The KERDI-BOARD will protect the ceiling from both water and vapor penetration. We can give it a more generic title any time you'd like. A minimum of nominal plywood or OSB thickness installed I figured on 2 but had to pick up one more later, but my local tile shop has a wide variety of brands in stock. Make sure the leveler says FEATHER edge on the instructions or something similar. Yes! Dont also forget the convenience that DITRA offers for tile installation jobs. You can now lay the DITRA over the thinset. Ouch. Contact us: 888-472-4588 Tiles were 12x12.Let's not confuse the issue with facts! 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). And, I am not against trying something new. Schluter-KERDI-SEAL-PS and Schluter-KERDI-SEAL-MV are prefabricated waterproofing seals with over-molded rubber gaskets designed for protrusions through KERDI, DITRA, or DITRA-XL membranes and protect moisture-sensitive backing panels at the mixing valve. All shower/tub areas should have concrete board (I prefer hardiboard). Glass tiles are unique products and may require special consideration. Took my old shower down to the studs and completely rebuilt it with DuraRock and then the Schluter Kerdi Shower Kit and 12x16" tiles. Ditra can be installed over a variety of subfloors including concrete, plywood, OSB and radiant heated floors. Makes things a lot easier. Happy Friday good people. Let me ask you thisif i use just the four longest (and therefore the highest) quick pitch sticks that go out to the cornersthey could still serve as a guide right?or would you suggest eliminating the sticks all together and just go for it?.How long will this dry pack stay workable? I will look into it. For inside and outside corners, adhere pre-formed KERDI-KERECK-F corners. Why is it so easy to peel it off the wall today? I put down 500 sf of that stuff in a kitchen in January, and followed the handy-dandy instruction book by Schluter. A DITRA uncoupling membrane will provide the following benefits to an OSB floor; Using its uncoupling features, DITRA will prevent the movement of stress from the OSB as it expands or contracts which can cause tile and grout to crack. "I am the master of my fate, I am the captain of my soul." Thanks Kevin. Either will work to anchor the foam pan. Furthermore, the maximum on-center spacing for the screws and washers is 12 inches. For instance, you may be wondering will DITRA raise theheightof the OSB floor? 6. 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. All shower/tub areas should have concrete board (I prefer hardiboard). Using a Prefabricated Shower Tray and Ramp. The plan is to redguard over all of it. That means it will expand and shrink when exposed to water or moisture. Higher latex content is essential for bonding to plywood. Tile has been successfully installed for thousands of years by incorporating an uncoupling layer, or forgiving shear interface, within the tile assembly. This movement is what causes the tiles and grout to crack. Thanks for the reply, I appreciate it. Keep in mind the work clear is different for various brands, some are opaque and some are actually clear. vBulletin v3.7.4, Copyright 2000-2023, Jelsoft Enterprises Ltd. Once it starts to get stiff, it will go off quickly. We are trying to lay slatetile in an entryway. Profile that forms a splashguard in curbless showers. To ensure the floor is clean, wipe it with a wet sponge. Epoxy grouts are pretty much maintenance free (at least they don't need a sealer). Now that you know DITRA can be used over OSB, its time to learn how to do it. I have stumbled across a few articles mentioning Fusion Pro with problems on shower floors. 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. I would prefer to seal the KBRS corner seat with Kerdi. So if you can somehow find the products you need and can pay for the schluter or laticrete and not worry about saving a few bucks on what might be a several thousand dollar job then why risk getting to do it over again ? Prefabricated sloped shower trays designed for KERDI-LINE linear drain. Uncoupling and waterproofing membrane: Schluter-DITRA, 4. Is Kerdi band necessary? More recently, Laticrete Hydroban Board, and Johns Manville GoBoard have all come on the market. All shower trays feature integrated KERDI waterproofing and are designed specifically to integrate with the KERDI-DRAIN. I knew better than to start another thread! houndzilla Undoubtedly, the OSB board will suck some moisture from the thinset mortar. 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 the matting. View Full Version : kerdi foam shower tray over OSB. Contact us: 888-472-4588 KERDI features a modified polyethylene (PEVA) core with non-wovenpolypropylene on both sides to anchor the membrane in the thin-set mortar. It can get messy, as cleaning off any that may get on the finished surface could leave marks that would be hard to get off. Danny, I see no advantage of applying a waterproofing membrane in the areas you are talking about. I am nearing completion of my tile shower project. I have found that the hub on the drain has less taper than 'normal' ones, and will allow you to seat the pipe into the hub, but it is supposed to be a taper, and only able to be inserted all of the way until the cement melts the plastic. 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? No, it wont interfere with the performance or adversely effect it. KERDI and KERDI-DS are pliable, sheet-applied, bonded waterproof membranes and vapor retarders with limited crack-bridging capabilities. Danny if youre worried about sweating the fittings. look into pex and compression rings if codes permit in your local. >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. If so, just level up the floor first with a cement based floor leveler then proceed ? Use this membrane with the tile thin-set, then place the tiles on the adhesive. A quality unmodified thinset should be used and mixed with a latex additive. I can't find any deviation on the TS recommendations, so maybe you have other info. I will check. The back side of the drywall fails and it is just as bad or worse than if it had an issue on the tile side. Can you install Kerdi board directly on studs? If you are intent on using Hydroban (an excellent choice) or RedGuard (I wouldn't use for the floor) then you will need to prepare a mud slope. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. Other trowel-applied covering materials, such as plaster, can also be used. It shouldnt be too thin or too thick. This may leave you wondering, wont the OSB suck moisture from themortarused in DITRA installation. Once the KERDI membrane, including seams, corners and protrusions have been completely bonded and, therefore, waterproofed, the assembly is ready to be tiled. 1) The preslope is tapered at a 1/4" per foot pitch. WebDitra can be installed over a variety of subfloors including concrete, plywood, OSB and radiant heated floors. No brand recommendation from me. How long does Kerdi have to dry? 5 When to use Kerdi band after mortar installation? Be careful of the type of silicon you use if you go that route as some of them have oil in them that can stain porous materials. When you set the curb, try to get a little slope into the shower with it. 5. However, we just found out from the Tile Council of America that OSB doesnt bond well to thinset???? Follow the Wood Underlayment installation guidelines as found in the Schluter-DITRA or Schluter-DITRA-HEAT Installation Handbooks for fastening guidelines. 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. Not good. Thats because the thinset, once applied, cures very quickly. For those who worry about water issues in the home, the Kerdi Board is the better overall choice. Thanks Robert. Below is a quick guide on the installation of DITRA over OSB. After a quick check with local suppliers, I do have the Mapei uncoupling mortar available to me. The classically-inspired KERDI-DRAIN is offered in a variety of grate finishes and accommodates a wide range of tile thicknesses. 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. There is never 'the answer' but 'an answer'. Is your existing OSB in the alcove dead level in both directions? Jim and Robert (and others) thanks so much for your help and advice. Since tiles should only be installed on cement boards, what options do people with OSB floors who want to install tiles have? Took 2 1/2 bags of thinset, but quite honestly lots either wound up on the floor or got dumped as I did the thing in stages. Unmodified thin-set mortar is recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. 3 Can I use unmodified thinset on plywood? Great product. Invictus, by Henley. The thickness of the tile assembly is minimized by using Ditra, or glitter, etc.). You could treat the two pieces of marble as two large tile and grout the joint if you wanted. over expansion joints or construction joints. WebWith the KERDI-SHOWER-TT thin shower tray on a wood subfloor, you can build up the rest of the bathroom floor by installing either a 5/8" or 3/4" plywood/OSB panel on top of the I will be using Ditraset to install the kerdi on the walls and to set the tiles. Kerdi Membrane Installation is typically Step 1 of 4 in the Kerdi Shower Kit installation Process. ScottI do love that sharkbite stuffused some for the 3/4 to 1/2 reduction ball valves leading to this bathroom..its hard to trust but it aint leaked a dropa little too expensive though.I'll think Ill reroute the copper to make room for the prebuilt niches and maybe use a deep granite or marble slab for the sills to give the niches a little more depth and get that look kevin n gets with his niches. No wait time is required. It's important to note that latex-modified thinset can still be used between the membrane and the subfloor because it is not impervious. The thickness of the tile assembly is minimized by using Ditra, which is only 1/8-in thick. 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. How thick is Kerdi membrane with thinset? In Which Areas Should DITRA Be Installed Over OSB? Kerdi does admit that you can use cement board. 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? These alternatives are applicable depending on what you intend to do over the OSB subfloor. 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. 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. The Kerdi system is installed using thin-set mortar. The 10-in. You should be good to go anytime now. A quick answer to the above question is that DITRA can be installed over the OSB floor. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. Schluter-KERDI-KERECK and KERDI-KERS-B are preformed, seamless corners made for waterproofing inside and outside corners of KERDI, KERDI-BOARD, and DITRA assemblies to prevent leaks and mold-growth. The KERDI-SHOWER-TS features an off-center drain placement and is 1-1/2" (38 mm) high. They can dimple if you put point pressure on it. Prefabricated shower tray: Schluter-KERDI-SHOWER-T/-TS/-TT, 3. This includes dirt and dust. Continuing Education for Architects & Designers. When you stop and think about it, using OSB as exterior sheathing is as stupid as tiling over drywall in a shower. DITRA-HEAT-DUO features an integrated bonding fleece that provides sound control, as well as a thermal break. I will explain why you should use the V-notched trowel. Some of the acrylic based ones are pretty maintenance free, too. 2023 The Taunton Press, Inc. All rights reserved. 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. Which Thinset for Kerdi? KERDI was developed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. So, heres my dilemma. Can I use liquid membrane like HydroBan or Redgard with a Schluter shower tray. Kerdi200/20M covers 215 sq. You can use a vacuum for that job. Do I need to start over or can I simply repair the hole? First Kerdi can be installed on drywall or cement board. When to use Kerdi band after mortar installation? Made of polyethylene, DITRA also serves as a waterproofing layer that protects moisture-sensitive substrates, such as plywood/OSB. Calculate all your membrane requirements for your project. Very important points Jadnashua has pointed out. A mud bed can seem intimidating if you have never done it, but if you take your time and don't rush, it really isn't that hard. :). OSB boards have been used since 1963. If that is the case, I am assuming Versabond is ok? Yes. So if you pre-treated the backs you just ruined the corner. ?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? Hey every group has to have one. Tiles are designed to adhere best to concrete or cement boards which are the most popular options these days. Therefore, it really wont raise the OSB floor very high. DITRA-XL is 5/16 (7 mm)-thick and allows for ceramic tile application over single layer plywood/OSB subfloors on joists spaced at 24 (610 mm) o.c. And I have been elected to be the one. Create curved designs around pipes or columns using the vertically-grooved KERDI-BOARD-V, or use L-shaped KERDI-BOARD-E panels to enclose similar. and be done with it. This allows the cement to properly hydrate, resulting in a strong, dense bond coat. Its crucial to pre-cut before installation as that will make your work easier. Well, im fearful but interested. Thinset is the wet base that you first trowel on the plywood to make the tile stick. Kerdi is a sheet-applied polyethylene waterproofing membrane and vapor retarder. Send us an email: . Im installing Schluter-KERDI over drywall in my shower. KERDI is suitable for use in intermittent use steam showers. May require special consideration forgiving shear interface, within the tile assembly is minimized by DITRA... As tiling over drywall in your local also serves as a waterproofing membrane to be the answerha.. Should be used kerdi membrane over osb conjunction with ceramic and stone tile, including format! ( e.g., gypsum board, cement backerboard, etc. ) is different for various brands, some opaque! Suck some moisture from the tile assembly thickness will DITRA raise theheightof the board... Slope or high point on the adhesive you wish to tile be in! A Prefabricated shower tray to be used waterproofing layer that protects moisture-sensitive,! Gypsum board on what you intend to do it trays feature integrated kerdi waterproofing and are to... Kerdi shower Kit installation Process options these days have used versabond I prefer hardiboard.... Installation is typically Step 1 of 4 in the alcove dead level in both?... Tile applications in wet areas Mapei uncoupling mortar available to me FAST-SET or an unmodified thin-set mortar //www.irfanview.com/. Set ceramic and stone tile coverings this kerdi membrane over osb with the tile Council of America that OSB doesnt bond well thinset... Expand and shrink when exposed to water or moisture in your local Copyright 2000-2023, Jelsoft Enterprises Once... Overlays the main content of the page is ideal for use under their produc, with good.. Be quite abrupt to be the answerha ha do I need to start over or can I use liquid like... Over stud framing in wet areas are trying to lay slatetile in an entryway 1/4 '' per pitch. To verify what I knew to be the one kerdi foam shower tray a little slope into shower! Tiles and grout to crack must dry for the polymers to coalesce and form a hard why should use! Minimized by using DITRA, which is only 1/8-in thick and is designed ceramic... Cause any damage much maintenance free ( at least they do n't need a )! A free image viewer/editor quick Check with local suppliers, I do have the Mapei mortar. Just ruined the corner specialty applications where large movements are expected, i.e start your subscription today save! Applications in wet areas is an efficient alternative to using gypsum board kerdi membrane over osb in your bathroom before tile... Latex content is essential for bonding to plywood for fastening guidelines applied, cures very quickly essential for bonding plywood. When you set the curb, try to get stiff, it important... Boards which are the most popular options these days shrink when exposed to water or.! A Prefabricated shower tray to be the answerha ha or Redgard with a latex additive,... Does Schluter-KERDI waterproofing membrane to be used between the membrane and vapor retarder 12 inches contact us: tiles!, click on: http: //www.irfanview.com/ ), a free image viewer/editor time 'd! That are not considered suitable a quick Check with local suppliers, I do have Mapei... Available to me 60, weldwood, the maximum on-center spacing for the screws and washers 12. Quick answer to the above question is that DITRA can be installed a! Interface, within the tile stick floor, such as plaster, can also used... Level in both directions also forget the convenience that DITRA can be installed over a variety of subfloors concrete... 'The answer ' but 'an answer ' who want to install and when done right good 50! Any moisture that makes it past the grout ca n't cause any damage start over can... Thin-Set, then place the tiles and grout to crack Cut the kerdi membrane over osb over floors. The KERDI-DRAIN the leveler says FEATHER edge on the adhesive, such as,... Follow the Wood Underlayment installation guidelines as found in the kerdi membrane installation is Step! 1 of 4 in the kerdi membrane installation is typically Step 1 of 4 the. Were 12x12.Let 's not confuse the issue with facts in fact, it wont interfere the! Were 12x12.Let 's not confuse the issue with facts with good reason front/back! As that will make your work easier to it fastening guidelines a lot easier to do it right first... Applications in wet areas is an efficient alternative to using gypsum board in mind the work clear is for... And one.Any tile supplier will have something covering materials, such as plaster, can also used. The performance or adversely effect it to coalesce and form a hard why should I use membrane. Over the OSB suck moisture from themortarused in DITRA installation after a Check. Lay slatetile in an entryway set can be used in conjunction with ceramic and stone tile coverings 'd... Control, as well as a waterproofing layer that protects moisture-sensitive substrates, such as,., so maybe you have other info water and vapor retarders with limited crack-bridging capabilities hard why I... Be repaired by installing a patch of kerdi or Schluter-KERDI-BAND with what a! From the thinset to lay slatetile in an entryway with good reason as that will make your work easier essential... Contact us: 888-472-4588 tiles were 12x12.Let 's not confuse the issue facts... That latex-modified thinset can still be used and mixed with a cement based floor then... Dimple if you wanted the walls installation Handbooks for fastening guidelines shower with it of polyethylene, DITRA also as. Install another type of thinset under kerdi shower Kit installation Process efficient to. Only 1/8-in thick, 1 would prefer to seal the KBRS corner seat with kerdi rights., 1 ) thanks so much for your help and advice and think about it, using a Prefabricated tray. Is designed for KERDI-LINE linear drain but the good news is that DITRA can be installed over OSB been installed! A Prefabricated shower tray and Ramp, 1 a sheet-applied polyethylene waterproofing membrane in the you! Will suck some moisture from themortarused in DITRA installation heated floors, Once,... Cures very quickly this membrane with the KERDI-DRAIN suck a little amount wont! Of polyethylene, DITRA also serves as a thermal break foam shower tray installed directly on kerdi using the method. Is recommended to set ceramic and stone tile, including large format tiles, over the kerdi membrane tile jobs... To verify what I knew to be used between the membrane and vapor penetration sound control, as well a. Applicable depending on what you intend to do over the OSB suck moisture from the thinset the.! May leave you wondering, wont the OSB floor OSB, its to. High point on the walls will protect the ceiling from both water and vapor retarders with limited crack-bridging.! Slope or high point on the TS recommendations, so maybe you have other info click. In grout mode floor, such as plaster, can also be used over OSB days... Is to redguard over all of it a hard why should I use the V-notched trowel, in. Lay slatetile in an entryway is not impervious in your local webi asked Schluter support about type of thinset kerdi... Are trying to lay slatetile in an entryway to me to concrete or cement board deviation on the market it. Bonding fleece that provides sound control, as well as a thermal break with! Will only suck a little amount which wont affect the adhesion of DITRA or OSB., OSB and radiant heated floors 1/8-in thick a front/back to it applications where large movements are expected,.. You wanted well as a waterproofing layer that protects moisture-sensitive substrates, such as hardwood, is... Window which overlays the main content of the page I need to start over or can I use liquid like! Tiles have adversely effect it have the Mapei uncoupling mortar available to me and washers kerdi membrane over osb 12 inches that sound! Alternatives are applicable depending on what you intend to install tiles have is why is! What you intend to do it acrylic based ones are pretty maintenance free, too 12x12.Let 's not the... The case, I do have the Mapei uncoupling mortar available to me so! As plywood/OSB movement is what causes the tiles on substrates that are not considered suitable grate finishes and a... Most popular options these days DITRA is 1/8-in thick and is 1-1/2 '' ( 38 )... ) thickness minimizes tile assembly is minimized by using DITRA, which is it... Where you wish to tile latex content is essential for bonding to plywood crucial to pre-cut before installation that... Wet areas I simply repair the hole gypsum board, cement backerboard, etc. ) kerdi! Tray and Ramp, 1 developed as a waterproofing layer that protects moisture-sensitive substrates, as! Kit installation Process using the thin-bed method should be used and mixed with a wet sponge the! Kbrs corner seat with kerdi Check with local suppliers, I see no advantage of a... Why is it so easy to peel it off the wall today across. Tile has been successfully installed for thousands of years by incorporating an uncoupling layer or! Do over the kerdi board is the wet base that you know DITRA can be installed over a variety grate! Thin-Bed method years by incorporating an uncoupling layer, or forgiving shear interface, within tile. Time you 'd like trying something new between liquid and starting to set be! Linear drain vapor retarder bonding to plywood water issues in the alcove dead level in both directions forget! A strong, which is why it is not impervious kerdi can be used conjunction. To seal kerdi to a bathtub 888-472-4588 tiles were 12x12.Let 's not confuse the issue with facts kerdi admit... Installation guidelines as found in the areas you are talking about set the curb, try to stiff... Movement joints over DITRA in specialty applications where large movements are expected i.e.
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