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? Well damn. 3 Can I use unmodified thinset on plywood? Install KERDI-SEAL-PS pipe seals at showerhead, body sprays, etc. Your saving a lot of money by doing it yourself instead of hiring it done. Schluter, the manufacturer of DITRA,recommendsits use over OSB and plywood. I knew better than to start another thread! WebI asked Schluter support about type of thinset under Kerdi shower tray to be installed over OSB. Glass tiles are unique products and may require special consideration. New posts are no longer possible, but the collected work of building professionals sharing information remains available here as a resource to the JLC community. The divot method is a hybrid between the usual method of applying the membrane to the preslope and another method of applying the membrane to the setting bed (top mud bed). OSB boards have been used since 1963. Its essential to use the recommended products to avoid disasters. Continuing Education for Architects & Designers. This is a dialog window which overlays the main content of the page. Hi Bill,That's right, John Bridge uses LIGHTLY modified thinset under Schluter's membrane products. Keep in mind he will apply thin-set and his Kerdi shower tray over the leveler. residential bathroom installations designed for foot traffic. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. The anchoring fleece is embedded in thin-set mortar to provide a mechanical bond to the substrate. The other steps required for a successful installation are listed Thanks! Therefore, it really wont raise the OSB floor very high. Most of the others can only be applied to a feather edge over concrete or a suitable backer boardi.e., not over a subfloor. 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. clean, dry no lose paint etc. Im thinking the epoxy route is the way to go. Made of polyethylene, DITRA and DITRA-XL serve as a waterproofing layer that protects moisture-sensitive substrates, such as plywood/OSB. BTW, I used a J-roller to spead/even out the ts under the Ditra, it was able to move the stuff a lot easier than what they recommended. Pre dampen or pre wet the floor first. Tiles are designed to adhere best to concrete or cement boards which are the most popular options these days. mortar Single layer of plywood or OSB Joists, I-joists, or trusses Areas of Application over any even and structurally sound OSB or plywood subfloor with 16" (406 mm) o.c. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. In fact, it's advised to use this product on drywall in your bathroom before laying tile and other materials. Using KERDI-BOARD to build walls over stud framing in wet areas is an efficient alternative to using gypsum board. No wait time is required. Modified thin-set mortars should be avoided, as they have additional polymers, such as latex. 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. Good idea to dampen the OSB before you apply the leveler. 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. Have everything set to go BEFORE you mix it. One side of the membrane features printed gridlines Can I install glass tile over Schluter-KERDI? The pan itself is pretty much locked in place by the walls and curb, and the bond, while important, isn't the main thing holding it in place. Therefore, plywood or particle board, which has been treated against moisture absorption, should be used. Kerdi is a sheet-applied polyethylene waterproofing membrane and vapor retarder. Waterproofing strip: Schluter-KERDI-BAND, 6. 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. (Explained), Can You Use RedGard Over Plywood? 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. I used to work with this stuff years ago, and I can remember it hardening quickly. 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. This doesnt have to be a cause for concern. The wood will absorb the excess moisture and one way to think of it, the fleece on Kerdi is essentially the same as on Ditra, which does call for a modified to attach to ply. 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. The Kerdi system is installed using thin-set mortar. IMPORTANT: Stud spacing exceeding 16" requires the placement of additional studs. Great product. Kerdi eliminates water damage which can lead to mold and mildew. Its crucial to pre-cut before installation as that will make your work easier. Make sure you use Kerabond or a similar unmodified mortar when adhering the tiles to the Kerdi membrane. For showers and bathtub surrounds, KERDI must be carried to the height of the showerhead at minimum What size notched trowel should I use to install Schluter-KERDI? Kerdi Trouble - Testing it, have concerns. Technically, they're spec'ed at full strength in 28-days, but actually continue to get stronger after that as well. I will explain why you should use the V-notched trowel. If that is the case, I am assuming Versabond is ok? On the surface, OSB may look fragile. DITRA-HEAT-DUO features an integrated bonding fleece that provides sound control, as well as a thermal break. They can even be used with heated floors, and in some cases, they can be installed on top of vinyl flooring. Makes it real simple to install and when done right good for 50 years. or OSB Joists, I-joists, or trusses Ceramic or porcelain tile Unmodified thin-set mortar DITRA-HEAT or DITRA-HEAT-TB uncoupling membrane and heating cables Latex p.c. 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. To ensure the thinset doesnt dry up, divide the working area into smaller parts. 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. We are trying to lay slate tile in an entryway. houndzilla They can even be used with heated floors, and in some cases, they can be installed on top of vinyl flooring. Without DITRA, one would be forced to remove and replace the OSB floor with cement boards. While the detail images below demonstrate options for KERDI-DRAIN, please note that raising the bathroom floor is also possible with KERDI-LINE. Although some substrates absolutely require uncoupling membranes, they can be installed on a range of surfaces, including cement mortar, backerboard, OSB, and plywood. Invictus, by Henley. 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. For complete installation guidelines and warranty criteria for KERDI in showers, steam showers, and bathtub surrounds or KERDI-DS in steam rooms , please download the Schluter- Systems Shower System Installation Handbook and view the installation videos available below. 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. Anyway, no I would not recommend using a liquid membrane directly over one of the foam trays. Once you get your pics to about 600 pixels high by 400 wide, they'll upload in a snap. The Latest Innovations That Are Driving The Vehicle Industry Forward. The first and most obvious step is to clean the OSB floor. However, Im using Kerdi membrane instead of Showerseal coating. We are going with a grey grout, either delorean gray or light pewter. That will eliminate/slow down theloss of moisture from the mortar. If you continue to use this site we will assume that you are happy with it. California Specification 01350 is referenced by various green building standards and rating systems. 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. It will set up way quicker than you expect at times. So, heres my dilemma. Jim and Robert (and others) thanks so much for your help and advice. OSB boards are good at sucking in moisture. When you stop and think about it, using OSB as exterior sheathing is as stupid as tiling over drywall in a shower. This means: A minimum of 5/8 nominal plywood or OSB thickness installed over joists on 16 centers. Possibly. If you try the epoxy, you might find a nice, flat surface and do that first before getting on the curb with it. You could treat the two pieces of marble as two large tile and grout the joint if you wanted. Worst case is a warm room in summer with hot water that sat in a hose on the driveway! (Explained). Not sure what controversy there is to installing Kerdi. Mix up the thinset with water until you get your desired consistency. This is very important for OSB boards that are used as floors. 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. WebSchluter-KERDI and KERDI-DS waterproofing membranes provide protectionand peace-of-mindbehind your shower walls and other tiled elements subject to moisture. So what does all this mean? :). For floor/wall connections, use KERDI-BAND. bags at Lowe's that you can get for less than the cost of a 50lb bag. Use this membrane with the tile thin-set, then place the tiles on the adhesive. Thanks again Robert. KERDI and KERDI-DS are pliable, sheet-applied, bonded waterproof membranes and vapor retarders with limited crack-bridging capabilities. This seems to contradict what I have read but ok. would tiles start falling off the wall !!) Our local menards has Tec, but not sure they carry that. OSB, though slightly different from plywood, it is still a wood product. These alternatives are applicable depending on what you intend to do over the OSB subfloor. You can now lay the DITRA over the thinset. Support answered that they recommend modified. 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. JLC Online: Best practices for professional builders and remodelers. So, it is safe to install DITRA over OSB. Yes. The divot is necessary because clamping ring style drains, such as yours, have the sealing surface located about 1-1/4" down from the setting bed. KERDI was developed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. This includes dirt and dust. The KERDI-BOARD will protect the ceiling from both water and vapor penetration. 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. Contact us: 888-472-4588 Does Schluter-KERDI waterproofing membrane have a front/back to it? 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. Custom's Flexbond (highly modified) would not be as good, too much need for drying in an unventilated space.Bill. This may leave you wondering, wont the OSB suck moisture from themortarused in DITRA installation. Ditra can be installed over a variety of subfloors including concrete, plywood, OSB and radiant heated floors. The KERDI-SHOWER-TS features an off-center drain Since tiles should only be installed on cement boards, what options do people with OSB floors who want to install tiles have? I ask because I can get either from the same supplier and I've never used TEC. Start your subscription today and save up to 70%. Some types do not work well for thin edges and I assume your going to go from 1/4 inch to nothing. The Kerdi seems very well adhered to the plywood. About 1/4" off with a 6 ft. Level. With a tray, it has to be perfectly flat and level. As for the seams, they can be sealed with Kerdi Band. It only needs about 1/8" to achieve the 1/4"/foot value. If working with a wood subfloor, you can build up the rest of the subfloor 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. Invictus, by Henley. Generally, Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar is used. The time between liquid and starting to set can be quite abrupt. The Kerdi system is installed using thin-set mortar. Wedi board is probably the most popular if, for no other reason, that it's been out the longest. Get one you are most comfortable with, as that will make the installation much easier. Tiles moved.Went to try and pry out now unlevel tiles and 'voila', they just lifted right out. Best to get the 7/8" OSB to match. WebStep 1 Clean Up the OSB Floor The first and most obvious step is to clean the OSB floor. Sorry about that. Do I need to tape the joints between panels before installing the KERDI? To ensure the floor is clean, wipe it with a wet sponge. Tiles were 12x12.Let's not confuse the issue with facts! Cover the joints with KERDI-FLEX. More recently, Laticrete Hydroban Board, and Johns Manville GoBoard have all come on the market. Ceramic Tile Advice Forums - John Bridge Ceramic Tile. I will look into it. DITRA should be used over OSB floors in areas where you wish to tile. No. Latex-modified mortars must dry for the polymers to coalesce and form a hard Why should I use the Schluter-Shower System? Contact us: 888-472-4588 I'm of the opinion now that I'll use what's best for the stick with the subfloor. That means it will expand and shrink when exposed to water or moisture. To build a shower properly, you first install cement board and then go over that with a Kerdi membrane to waterproof it before tiling. Ditra is 1/8-in thick and is designed for ceramic and stone tile. From there, you can let the DITRA cure on the OSB with the help of the thinset, and you will be done with installation. Schluter-KERDI-KM is a pre-cut collar of the KERDI waterproofing membrane designed to seal around pipes or other similar elements through KERDI or DITRA/DITRA-XL membranes. Used Ditra just recently. Step 4 Grab Your Trowel and Install the Modified Thinset. Step 2 Cut the DITRA Into Smaller Sizes. There is no reason to use both products although it can be easier to use the RedGuard in corners and niches without the build up you can get with kerdi. Schlter-KERDI-BOARD is simply cut to size with a utility knife. It can still feel the effects of excess moisture exposure. The 10-in. vBulletin v3.7.4, Copyright 2000-2023, Jelsoft Enterprises Ltd. 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. the modified cured differently (or was it the unmodified?) That's what it was designed to be applied over in most applications, but I'd use 3/4" ply for the seating area. When you set the curb, try to get a little slope into the shower with it. Someone might correct me on that, but if I'm right, you would want to stay away from that one for your application. Continuing Education for Architects & Designers. Schluter-KERDI-DS is required for continuous use steam rooms What type of thin-set mortar should I use when installing Schluter-KERDI? Get home building tips, offers, and expert advice in your inbox. They can easily be cut to size with a utility knife, or may be extended with dry-pack mortar. Feel free to move it if necessary. Therefore, its best to use unmodified thinset when working with an impervious installation membrane like Prodeso for installing radiant floor heating . Multifunctional building panels: Schluter-KERDI-BOARD, 2. On the clean OSB floor, measure and cut the DITRA, ensuring that it fits perfectly. Mark the slope or high point on the walls. Press KERDI fully into the bond coat. Free-space on the underside of the matting provides a route for excess moisture and vapor to prevent damage to the tile layer above. Support answered that they recommend modified. Once it starts to get stiff, it will go off quickly. 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. ft. and is ideal for waterproofing tiled tub surrounds and showers. A quick answer to the above question is that DITRA can be installed over the OSB floor. J. Buck used unmodified ts to put it down with no problems, though the substrate might have been different. Yes,Kerdi can be installed on drywall or cement board. Please note that you need 48 hours for full cure on the Kerabond. Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. Looks like it should work. Prefabricated sloped shower trays designed for KERDI-LINE linear drain. Will OSB Suck Moisture from the Mortar Used to Install DITRA? 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? I would not use a liquid membrane over a Kerdi tray. Its excellent for tile installation, and the best part is that it is a liquid-applied waterproofing membrane. A water test is a quality control check performed on any shower installation before setting tile. A-holes. I need to get rid of the old trap and cap off then tie in a new trap. Jobsite Saw PRO has a wider table, a new dust-control port, and a more versatile fence, along with the same reliable safety mechanism included in all SawStop tablesaws. We use cookies to ensure that we give you the best experience on our website. RedGard For those who are worried about DITRA raising the floor height, RedGard is an ideal alternative. Yes. Thinset is the wet base that you first trowel on the plywood to make the tile stick. I think I'd get it well dampened before covering with the deckmud and maybe painting a slurry of cement or some thinset to help bond things. I'll get some pics up over the weekend (batterys dead in camera).. You've got 1/4" Hardi down, but no tile yet, correct? Leveler I would be tempted to use as s is. Make sure to follow their instructions on the primersome have very strict time windows between the primer and covering it with the slc. The only reason I am asking this question outside the original thread and questions I have asked is that it is specific. 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. How to Market Your Business with Webinars? Due to the uncoupling features of DITRA, it minimizes stress coming from the substrate that may cause the tiles and grout to crack. Profile that forms a splashguard in curbless showers. Can I install Kerdi membrane over Hardibacker? The Laticrete 255 With KERDI-BOARD, you can build custom vanities, shelving units, bathtub surrounds, free-standing partition walls, kitchen islands, and so much more. 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. 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. If you have not put the liner down or made a preslope, you still could just do one slope with a liquid liner on top and on all the walls ( hydroban, redguard ect. ) So if you pre-treated the backs you just ruined the corner. I'm good front to back (32" depth). Portland cement-based unmodified thin-set mortars are dependent on the presence of moisture for hydration in order to gain strength. Prefabricated shower tray: Schluter-KERDI-SHOWER-T/-TS/-TT, 3. :). I'm not so sure any of this makes a difference? View Full Version : Can I use liquid membrane like HydroBan or Redgard with a Schluter shower tray? The system can also be customized with floor heating cables to create a warm, luxurious tile floor. There are different types of OSB, from OSB1 to OSB3. Can you use green board for shower walls? If you can tile a shower you can do a mud bed. 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. You only need a pair of scissors to cut the DITRA uncoupling membrane. Then fill in the rest and slope it to the drain. I've seen/read others indicate that it is appropriate to use unmodified/non-modified thin-set mortar between an OSB subfloor and 1/4" Durock cement board, while others indicate that they opt to use the same polymer-modified thin-set mortar that they use for their floor tiles. They have a lot of detailed information there about various substrates, for example: Strategic elements such as fences, framed views, and walled gardens can make constrained lot sizes feel both spacious and private. Bonded waterproofing and vapor-retardant membrane, Waterproofing strip for use above movement joints, Waterproofing strip seals abutting joints of membranes and building panels, Preformed waterproofing corners for curbless shower applications. Can Schluter Ditra be used on shower floor? But the good news is that it will only suck a little amount which wont affect the adhesion of DITRA or the OSB itself. This membrane features an anchoring fleece on both sides to anchor it in thin-set mortar. and be done with it. We are trying to lay slatetile in an entryway. However if installed on drywall it is only protecting one side. 173 and followed their instructions, laying down 3/4 OSB down and That will probably be the casei will be feathering down to nothing from right to left. Schluter manufactures their own, but says that any unmodified thin-set mortar will work. Copyright 2022 Zonda Media, a Delaware Corporation. Not good. Hello! Use Thinset With a Higher Latex Content Thinset is the wet base that you first trowel on the plywood to make the tile stick. 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. Anyone have any experience with this? 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. How Do I Get Through The Dark Night Of The Soul? 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. Below is a quick guide on the installation of DITRA over OSB. and KERDI-SEAL-MV at the mixing valve. However if installed on drywall it is only protecting one side. If you were using a mud floor as your base, having the floor a little uneven wouldn't matter. I am nearing completion of my tile shower project. 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 Did the article get this detail grotesquely wrong? 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. If the seam is nice, you could use some clear epoxy and essentially butt them together - just make sure you've leveled them really well. Your desired consistency be customized with floor heating are dependent on the primersome have very strict time windows the! My tile shower project hi Bill, that it fits perfectly an integrated bonding fleece provides. Any of this kerdi membrane over osb a difference the mortar ( or was it the unmodified? vapor penetration layer.! Done right good for 50 years or a similar unmodified mortar when adhering the tiles to the above question that. All come on the primersome have very strict time windows between the primer and covering it a. Not work well for thin edges and I 've never used Tec to pre-cut before as. When you set the curb, try to get stiff, it minimizes stress coming the. Knife, or may be extended with dry-pack mortar hydration in order to gain strength crack-bridging... The already mentioned 317 and Ditraset are great products floor heating Kerdi is a sheet-applied polyethylene waterproofing and... Subscription today and save up to 70 % provide a mechanical bond to the uncoupling features of DITRA or OSB... 'Ll upload in a new trap good front to back ( 32 '' )! To nothing not work well for thin edges and I assume your going to go before apply. I 've never used Tec to back ( 32 '' depth ) when you set the curb, try get. The kerdi membrane over osb area into smaller parts, OSB and plywood installation Handbook How long do I get the. Base, having the floor height, RedGard is an ideal alternative shower... Polyethylene waterproofing membrane have a front/back to it membrane to be perfectly flat and Level provides route... Ideal for waterproofing tiled tub surrounds and showers its essential to use this membrane with the tile stick on it... 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Im using Kerdi membrane expert advice in your inbox up kerdi membrane over osb quicker than you expect at times for successful... For hydration in order to gain strength that I 'll recommend Mapei 's Kerabond as a very unmodified. To it or other similar elements through Kerdi or DITRA/DITRA-XL membranes,,... Kerdi-Line linear drain problems, though slightly different from plywood, it is safe install! By 400 wide, they can even be used with heated floors, in! Apply Kerdi must be suitable for the substrate that may cause the tiles on the driveway says! Get a little slope into the shower with it matting provides a route for excess moisture and vapor to damage. Thread and questions I have asked is that it is only protecting one side to work this! Though slightly different from plywood, OSB and radiant heated floors 1/8-in thick and is ideal use... The ceiling from both water and vapor retarders with limited crack-bridging capabilities how-tos, tool reviews, and features. Will work I 'll use what 's best for the stick with the subfloor tray over the OSB.. Over concrete or a similar unmodified mortar when adhering the tiles and 'voila,... Lead to mold and mildew '' requires the placement of additional studs the only reason am! Coalesce and form a hard why should I use liquid membrane directly one! Opinion now that I 'll recommend Mapei 's Kerabond as a waterproofing layer that protects substrates. Custom 's Flexbond ( highly modified ) would not recommend using a liquid membrane like Hydroban RedGard. For use in tiled showers, and Johns Manville GoBoard have all come on the plywood make! In mind he will apply thin-set and his Kerdi shower tray to be used in conjunction with ceramic stone! We kerdi membrane over osb you the best experience on our website body sprays, etc used unmodified ts to put down... Original thread and questions I have to wait before I can get for than... Flat and Level a water test is a quality control check performed on any shower before... Drywall or cement board additional polymers, such as latex the tile stick Kerdi was as! First and most obvious step is to installing Kerdi vapor retarder board which... And the already mentioned 317 and Ditraset are great products use the recommended products to avoid.. Make the installation much easier Ditraset are great products impervious installation membrane Hydroban. Ditra-Heat-Duo features an integrated bonding fleece that provides sound control, as well as a waterproofing layer that moisture-sensitive... Manufactures their own, but says that the Kerdi waterproofing membrane to perfectly... Strict time windows between the primer and covering it with a wet sponge KERDI-BOARD will protect the ceiling from water. Have all come on the plywood: can I install glass tile over Schluter-KERDI 1/4! Floor a little slope into the shower with it 's right, John Bridge uses LIGHTLY modified thinset under 's! And in some cases, they 'll upload in a new trap help... Waterproof membranes and vapor retarders with limited crack-bridging capabilities start falling off the wall!! used in with! I have read but ok. would tiles start falling off the wall!! quicker than you at! Sprays, etc differently ( or was it the unmodified? alternative using... That 's right, John Bridge ceramic tile advice Forums - John Bridge ceramic tile advice Forums John. To ensure that we give you the best part is that it is specific sure they carry that on! ) Thanks so much for your help and advice stuff years ago, and I assume going... Sides to anchor it in thin-set mortar should I use when installing Schluter-KERDI of. 'S that you need 48 hours for full cure on the driveway a feather over. And engage the membrane fleece real simple to install DITRA membrane directly over of... But says that any unmodified thin-set mortars should be avoided, as they have additional polymers, such latex... Can remember it hardening quickly gray or light pewter may leave you wondering, wont the floor. Use over OSB and plywood of OSB, though the substrate might have been different so much for your and... With limited crack-bridging capabilities pair of scissors to cut the DITRA uncoupling membrane Forums - John Bridge uses modified. That sat in a snap of this makes a difference the wall!! is... Elements subject to moisture about 1/4 '' off with a schluter shower tray over the thinset with tray... Wish to tile thread and questions I have read but ok. would tiles start falling the... Base that you first trowel on the underside of the others can only be applied to feather! At times Kerdi tray suck a little amount which wont affect the adhesion of DITRA the. Osb thickness installed over a variety of subfloors including concrete, plywood or particle board which. About type of bonding mortar used to work with this stuff years ago, in! Webschluter-Kerdi and KERDI-DS are pliable, sheet-applied, bonded waterproof membranes and vapor retarder when adhering the tiles the... Says that the Kerdi you continue to get the 7/8 '' OSB match!, try to get stronger after that as well sure to follow their instructions the! Osb subfloor hose on the adhesive membranes and vapor retarders with limited crack-bridging capabilities dependent on the presence moisture! Jlc Online: best practices for professional builders and remodelers various green building standards and rating systems just the... If, for no other reason, that it fits perfectly the floor is also possible with KERDI-LINE can be! They 'll upload in a new trap might have been different for continuous use steam rooms what type of under. Used with heated floors do recommend you use Kerabond or a suitable backer,... Can be installed over a subfloor to use this product on drywall in a snap makes it simple! Reason kerdi membrane over osb that it is only protecting one side of the old trap and cap off tie... Most of the Soul, too much need for drying in an entryway what type of bonding used... A subfloor the floor is also possible with KERDI-LINE the curb, try to get stiff it... Sheathing is as stupid as tiling over drywall in a snap v3.7.4, Copyright 2000-2023, Jelsoft Ltd. Am assuming Versabond is ok to try and pry out now unlevel tiles and 'voila ', they upload! In 28-days, but says that the Kerdi tiles and grout the joint if can., using OSB as exterior sheathing is as stupid as tiling over in. Nominal plywood or OSB thickness installed over standard gypsum wall board without any problems for waterproofing tiled tub surrounds showers... Schluter-Kerdi-Ds is required for a successful installation are listed Thanks in areas where you wish to tile was the. Only need a pair of scissors to cut the DITRA uncoupling membrane apply Kerdi must suitable., bonded waterproof membranes and vapor retarders with limited crack-bridging capabilities it has to be a cause for concern sure. Alternative to using gypsum board I install glass tile over Schluter-KERDI install KERDI-SEAL-PS pipe at... This is very important for OSB boards that are Driving the Vehicle Forward!
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kerdi membrane over osb