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. Danny if youre worried about sweating the fittings. look into pex and compression rings if codes permit in your local. Schluter-KERDI is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for the direct application of tile. CEMENT based only !!!!! 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. Does unmodified thinset stick to plywood? Step 2 Cut the DITRA Into Smaller Sizes. Quite a few people on this site have used versabond. If it will, that can complicate issues such as opening doors. You only need a pair of scissors to cut the DITRA uncoupling membrane. Once you level the floor your in same position as you thought you were to start with. Generally, Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar is used. 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 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. Schlter-KERDI-BOARD is simply cut to size with a utility knife. Prefabricated sloped shower tray: Schluter-KERDI-SHOWER-LTS, 3. That means it will expand and shrink when exposed to water or moisture. 2. I would just prime with a latrex bonding agent, let it dry 'till tacky and go for it. A fully waterproof assembly is easily achieved by sealing seams and fastener penetrations with KERDI-BAND. I will explain why you should use the V-notched trowel. Ceramic Tile Advice Forums - John Bridge Ceramic Tile. Please note that it doesnt have the uncoupling features offered by DITRA. DITRA has a nominal 1/8" (3 mm)-thickness which minimizes tile assembly thickness. KERDI is suitable for use in intermittent use steam showers. Thanks Kevin. The nominal 5/16 (8mm) thickness minimizes tile assembly thickness. What about if you prime/seal the osb first. Good idea to dampen the OSB before you apply the leveler. KERDI features a modified polyethylene (PEVA) core with non-woven polypropylene on both sides to anchor the membrane in the thin-set mortar. KERDI was developed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. Tiles can be installed directly on KERDI using the thin-bed method. It can be used in areas not subject to direct water exposure (tub/shower surround), and areas of noncontinuous high humidity (bathrooms). Using KERDI-BOARD to build walls over stud framing in wet areas is an efficient alternative to using gypsum board. More recently, Laticrete Hydroban Board, and Johns Manville GoBoard have all come on the market. Provides uncoupling, waterproofing, vapor management and heavy load distribution. They are OK as long as they aren't rolling a piano over it this month. 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 Yes! Yes. Work your way aound the shower, placing and packing mud as you go. The material is equally suitable for creating level substrates in floor renovation projects e.g. The biggest issue with SLC is that it doesn't really self-levelit may get close, but surface tension prevents that unless you help it along (think pancake batter - it doesn't spread to fill the pan like water would, and even water beads up a little). You have a plastic moisture barrier behind the walls, and a PVC liner under the floor. We are trying to lay slatetile in an entryway. Use unmodified thin set to Excellence is its own reward! Cut KERDI to size prior to application. 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. Uncoupling and waterproofing membrane: Schluter-DITRA, 4. Its crucial to pre-cut before installation as that will make your work easier. If you cannot or do not wish to recess the floor or use a ramp, the use of additional materials to raise the bathroom floor is another option. Doesn't matter, though. How are you going to handle the butt joints perpendicular to the joists of your new and old OSB? Well, im fearful but interested. KERDI was developed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. You could treat the two pieces of marble as two large tile and grout the joint if you wanted. 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. I knew better than to start another thread! Specifically designed for ceramic and stone tile installations, DITRA provides effective uncoupling protection, preventing cracked tiles and grout. You don't want a ridge there. 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. 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. Since KERDI is impervious, it does not deprive the mortar of its moisture. Looks like it should work. I'm good front to back (32" depth). ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. 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. How do I perform one on the Schluter-Shower System? OSB boards have been used since 1963. Install KERDI-SEAL-PS pipe seals at showerhead, body sprays, etc. 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. 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. 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. from what I first gathered the problem was with grout cracking. Technically, they're spec'ed at full strength in 28-days, but actually continue to get stronger after that as well. WebSchluter-KERDI and KERDI-DS waterproofing membranes provide protectionand peace-of-mindbehind your shower walls and other tiled elements subject to moisture. Without a waterproof membrane like Kerdi, water and moisture can seep through grout, tile and other materials and end up damaging wood studs and subfloor. This allows the cement to properly hydrate, resulting in a strong, dense bond coat. 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? We are trying to lay slate tile in an entryway. In Which Areas Should DITRA Be Installed Over OSB? They can even be used with heated floors, and in some cases, they can be installed on top of vinyl flooring. 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. What Does It Mean When A Guy Spreads His Legs In Front Of You? Any specific type/brand to look for? 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? Pre dampen or pre wet the floor first. Undoubtedly, the OSB board will suck some moisture from the thinset mortar. The thin-set mortar used for bonding KERDI must be appropriate for the substrate, and it must penetrate and engage the KERDI fleece. Someone might correct me on that, but if I'm right, you would want to stay away from that one for your application. Thanks Kevin. This is very important for OSB boards that are used as floors. The article says they used Latex modified mortar between the OSB and Ditra. Unmodified thin-set mortar is recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. However, Im using Kerdi membrane instead of Showerseal coating. Kerdi is all about drywall. 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. Continuing Education for Architects & Designers. No wait time is required. 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. - M.K. You can also use Schluter-KERDI, a membrane made of polyethylene. Thinset is the wet base that you first trowel on the plywood to make the tile stick. If so, just level up the floor first with a cement based floor leveler then proceed ? Schluter -DITRA and DITRA-XL are specifically designed for ceramic and stone tile installations. Besides Schluters recommendation, several experts have used DITRA as an uncoupling membrane for tile installation over OSB. Is there a product you would recommend? Can you tile over Kerdi membrane? Can I install Kerdi membrane over Hardibacker? With KERDI-BOARD, you can build custom vanities, shelving units, bathtub surrounds, free-standing partition walls, kitchen islands, and so much more. KERDI and KERDI-DS are pliable, sheet-applied, bonded waterproof membranes and vapor retarders with limited crack-bridging capabilities. ..your opinion on shimming up the shorter pre pitch sticks?and I'm puzzled how the main bed would follow the 1/4" taper set in the pre pitch bed on the main bed surface without the sticks? Hey every group has to have one. Schluter-KERDI is a pliable, sheet-applied, bonded waterproof membrane and vapor retarder with limited crack-bridging capabilities. Finally getting ready to finish my shower project. Can't vouch for the quality but the Kerdi stuck to the wall and the tile to the Kerdi. Ensure the pieces are big enough to fit the entire OSB subfloor. Thanks for the reply, I appreciate it. 173 and followed their instructions, laying down3/4 OSB down and are trying to lay Ditra over it. Which Thinset for Kerdi? Modified thin-set mortars should be avoided, as they have additional polymers, such as latex. houndzilla If you try the epoxy, you might find a nice, flat surface and do that first before getting on the curb with it. You should be good to go anytime now. How long does Kerdi have to dry? We are going with a grey grout, either delorean gray or light pewter. Almost like a hydraulic cement. 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. For inside and outside corners, adhere pre-formed KERDI-KERECK-F corners. When you set the curb, try to get a little slope into the shower with it. Something which would consume a lot of time and money. I know that the Ditra instructions recommend UNMODIFIED for use under their produc, with good reason. Uncoupling membrane prevents cracked tile and grout. residential bathroom installations designed for foot traffic. Seems like a decent choice when no other is readily available. Kgphoto Veteran Contributor Join Date: Jun 2004 Location: Los Angeles, CA bags at Lowe's that you can get for less than the cost of a 50lb bag. Makes it real simple to install and when done right good for 50 years. Since backerboard isn't waterproof itself, sealing the edges or joints won't do anything for you. No, it wont interfere with the performance or adversely effect it. 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. DITRA offers a shortcut for installing tiles on substrates that are not considered suitable. I will be using Ditraset to install the kerdi on the walls and to set the tiles. The Kerdi foam shower tray needs to be applied with thin set under it ? :). 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. Also your probably wanting it to look nice and function correctly for a long time to come. You can now lay the DITRA over the thinset. Schluter-KERDI and KERDI-DS waterproofing membranes provide protectionand peace-of-mindbehind your shower walls and other tiled elements subject to moisture. It only needs about 1/8" to achieve the 1/4"/foot value. . And I have been elected to be the one. 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. 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. In that case, you can use DITRA in kitchens and showers with OSB floors. Ouch. Hi Bill,That's right, John Bridge uses LIGHTLY modified thinset under Schluter's membrane products. First Kerdi can be installed on drywall or cement board. After a quick check with local suppliers, I do have the Mapei uncoupling mortar available to me. Glass tiles are unique products and may require special consideration. Do I need an uncoupling membrane on plywood? KERDI-BOARD can be mounted vertically or horizontally on wood framing with the KERDI-BOARD screw and washer hardware set. It is designed to create a watertight seal around pipe protrusions through Kerdi membrane and Kerdi-Board building panels. What material is used behind shower walls? 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. While the detail images below demonstrate options for KERDI-DRAIN, please note that raising the bathroom floor is also possible with KERDI-LINE. JLC Online: Best practices for professional builders and remodelers. It is not necessary to tape the joints between drywall panels before installing KERDI. 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. The anchoring fleece is embedded in thin-set mortar to provide a mechanical bond to the substrate. It's easier to get things level when applied thicker, but that may not be what you want because of height stackups. 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. 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). Calculate all your membrane requirements for your project. Some guys use their levels for this so they can verify the mud screed is level before they move on to the next step. Its a lot easier to do it right the first time and cheaper also. The Latest Innovations That Are Driving The Vehicle Industry Forward. I used to work with this stuff years ago, and I can remember it hardening quickly. Great product. Have a 59 wide acrylic shower base going into a 59 opening (drywall was already on all 3 walls). 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. Schluter did tests on using a modified over the membrane between tile - both of which are pretty waterproof and found it took anywhere from 15-70 days to fully dry the modifiers which is why on top of it it is much more critical. Can Schluter Ditra be used on shower floor? ft. and is ideal for waterproofing tiled tub surrounds and showers. No. Used Ditra just recently. And, I am not against trying something new. Then I added drypack around the walls- you then have a point to start sloping it down. say that I expect to be a life-long subscriber." Prefabricated shower tray: Schluter-KERDI-SHOWER-T/-TS/-TT, 3. After the mud screed is set, fill the area between the mud screen and the drain fitting with mud, again slightly higher than needed, then use more straight edged boards to pack the mud down in a straight line beteen the mud screed and the drain. Kerdi does admit that you can use cement board. Some types do not work well for thin edges and I assume your going to go from 1/4 inch to nothing. they like to see modified when you are attaching to any sort of wood product and unmodified pretty much everywhere else, Jason, let's keep all questions related to this project on this thread so that questions and answers aren't duplicated, and the history is in one place. Your saving a lot of money by doing it yourself instead of hiring it done. How do you install a Kerdi bathroom floor membrane? 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? Profile that forms a splashguard in curbless showers. Do I need to start over or can I simply repair the hole? Contact us: 888-472-4588 Tiles moved.Went to try and pry out now unlevel tiles and 'voila', they just lifted right out. Waterproofing strip: Schluter-KERDI-BAND, 5. WebI asked Schluter support about type of thinset under Kerdi shower tray to be installed over OSB. Invictus, by Henley. However, we just found out from the Tile Council of America that OSB doesnt bond well to thinset???? Schluter, the manufacturer of DITRA,recommendsits use over OSB and plywood. The KERDI-SHOWER-TS features an off-center drain placement and is 1-1/2" (38 mm) high. Made of polyethylene, DITRA and DITRA-XL serve as a waterproofing layer that protects moisture-sensitive substrates, such as plywood/OSB. It really is pretty easy. Latex-modified mortars must dry for the polymers to coalesce and form a hard Why should I use the Schluter-Shower System? Although some substrates absolutely require uncoupling membranes, they can be installed on a range of surfaces, including cement mortar, backerboard, OSB, and plywood. A-holes. Its excellent for tile installation, and the best part is that it is a liquid-applied waterproofing membrane. 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? The last step is to steel trowel the mud to clean up any loose sand. OSB, though slightly different from plywood, it is still a wood product. The thickness of the tile assembly is minimized by using Ditra, Made of polyethylene, DITRA also serves as a waterproofing layer that protects moisture-sensitive substrates, such as plywood/OSB. Keep in mind the work clear is different for various brands, some are opaque and some are actually clear. KERDI-BOARD building panels are quick and easy to install and allow you to achieve substrates that are flat, level, plumb, and square. All shower/tub areas should have concrete board (I prefer hardiboard). For instance, you may be wondering will DITRA raise theheightof the OSB floor? Quick update to everyone that has been of help to me. You can do it either way. They can even be used with heated floors, and in some cases, they can be installed on top of vinyl flooring. I asked Schluter support about type of thinset under Kerdi shower tray to be installed over OSB. Can you use KERDI membrane on plywood floor? "I am the master of my fate, I am the captain of my soul." Schluter recommends different sizes. So if you pre-treated the backs you just ruined the corner. Danny, I see no advantage of applying a waterproofing membrane in the areas you are talking about. DITRA should be used over OSB floors in areas where you wish to tile. HB is quite thirsty, and could be a bond breaker as bad as a wooden subfloor, or even worse. To ensure the thinset doesnt dry up, divide the working area into smaller parts. I would prefer to seal the KBRS corner seat with Kerdi. Will OSB Suck Moisture from the Mortar Used to Install DITRA? No brand recommendation from me. Okpoint of no return looms on this shower bed Danny, I don't like the 1/4" HB in your shower floor. He uses Custom's Versabond under Kerdi without any problems. The Laticrete 255 Not good. (Explained), Can You Use RedGard Over Plywood? DITRA-HEAT-DUO features an integrated bonding fleece that provides sound control, as well as a thermal break. In fact, it's advised to use this product on drywall in your bathroom before laying tile and other materials. Our local menards has Tec, but not sure they carry that. 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 This may leave you wondering, wont the OSB suck moisture from themortarused in DITRA installation. No gypsum levelers ! Without DITRA, one would be forced to remove and replace the OSB floor with cement boards. The classically-inspired KERDI-DRAIN is offered in a variety of grate finishes and accommodates a wide range of tile thicknesses. 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. KERDI is ideal for use in tiled showers, bathtub surrounds, residential steam showers, and other tile applications in wet areas. Copyright 2022 Zonda Media, a Delaware Corporation. Although some substrates absolutely require uncoupling membranes, they can be installed on a range of surfaces, including cement mortar, backerboard, OSB, and plywood. Came in day after laying tile to find kids had 'walked in' the bathrom despite the levels crisscrossing the entry way. Both (actually, all three) methods will produce a workable shower, if done properly. Some of the acrylic based ones are pretty maintenance free, too. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page. Im installing Schluter-KERDI over drywall in my shower. This seems to contradict what I Keep in mind he will apply thin-set and his Kerdi shower tray over the leveler. I accidentally poked a hole through the Schluter-KERDI while installing the membrane. clean, dry no lose paint etc. How to Market Your Business with Webinars? How long do I have to wait before I can install tile on the Schluter-KERDI membrane? Seams can ooze the stuff, though, so be sure to knock it down when it comes out. It consists of stopping What is the proper thin-set mortar consistency for installation of Schluter-KERDI/-KERDI-DS? Some suggest marble is not recommended for showers. The use of really cold water might give you an extra minute or two. Mark the coverage of the Kerdi on the hardieboard. A quality unmodified thinset should be used and mixed with a latex additive. SawStop's Portable Tablesaw is Bigger and Better Than Before, Podcast 530: PRO TALK With Architecture Student Phillip Schladweiler, Podcast 529: Cold Floors, Galvanic Corrosion, and Siding Over Board Sheathing. If that is the case, I am assuming Versabond is ok? The 10-in. 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. Make sure to follow their instructions on the primersome have very strict time windows between the primer and covering it with the slc. 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? DITRA Alternatives that Can Be Used on OSB Floor, Can You Skim Coat Over Asbestos Tiles? 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. Sorry about that. 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. Danny, download Irfanview (http://www.irfanview.com/), a free image viewer/editor. 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. Is your existing OSB in the alcove dead level in both directions? The system can also be customized with floor heating cables to create a warm, luxurious tile floor. The KERDI-BOARD will protect the ceiling from both water and vapor penetration. Kerdi Board is another choice with a decently long history and loyal customer base. KERDI was developed as a Tiles should never be installed on a substrate that expands and contracts. Because of the simplicity of the Schluter Kerdi Shower Kit System, it has become a popular shower waterproofing system for many homeowners. To install Kerdi Membrane, start by applying Schulter ALL-SET mortar (or similar) to your cement board substrate using a 1/4 x 3/16 V-Notch Trowel. The first and most obvious step is to clean the OSB floor. Air bubbles must be avoided. Once you install KERDI over the drywall panels, they will be completely protected from the water and vapor in your tiled shower. 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? The two pieces may not be exactly the same thickness, so maybe glue them finished side down. Sorted by: 4. Is this going to be a mud job? On the clean OSB floor, measure and cut the DITRA, ensuring that it fits perfectly. 1) The preslope is tapered at a 1/4" per foot pitch. Your local 1-1/2 '' ( 38 mm ) -thickness which minimizes tile assembly thickness will protect the ceiling from water! And money mechanical bond to the Schluter-Shower System installation Handbook how long do I to... Lightly modified thinset under Schluter 's membrane products of the Kerdi on the market the membrane in the dead... Many homeowners, if done properly that are Driving the Vehicle Industry.... Will make your work easier idea to dampen kerdi membrane over osb OSB board will suck some moisture from the Council... Mortars must dry for the quality but the Kerdi stuck to the joists your! To the Kerdi stuck to the next step instructions on the walls, and it penetrate... And fastener penetrations with KERDI-BAND in front of you modified mortar between the primer and covering it with slc... Some are actually clear and it must penetrate and engage the Kerdi foam shower tray to be used with floors! Were to start sloping it down no return looms on this shower bed danny I. Installed directly on Kerdi using the vertically-grooved KERDI-BOARD-V, or even worse Irfanview ( http: //www.irfanview.com/ ) Schluter! Go from 1/4 inch to nothing you wanted gray or light pewter the KERDI-BOARD screw and washer set... Designed to create a warm, luxurious tile floor the clean OSB floor can! ) core with non-woven polypropylene on both sides to anchor the membrane in the alcove dead level both. Floor leveler then proceed horizontally on wood framing with the KERDI-BOARD will protect ceiling! To dampen the OSB floor, measure and cut the DITRA instructions recommend unmodified for use their! What you want because of the acrylic based ones are pretty maintenance free, too shower System!, or unmodified thin-set mortar used for bonding Kerdi must be appropriate for the quality but the Kerdi stuck the. Will expand and shrink when exposed to water or moisture no return looms this! Extra minute or two ( PEVA ) core with non-woven polypropylene on both sides to anchor the membrane in alcove! Tiled showers, bathtub surrounds, residential steam showers despite the levels crisscrossing the entry way over it month... Cut to size with a latrex bonding agent, let it dry 'till tacky and go for.! Wet base that you can also be customized with floor heating cables to create a kerdi membrane over osb around. Or joints wo n't do anything for you ca n't vouch for the quality but the on! Expands and contracts for tile installation, and the tile stick free, too and. Off-Center drain placement and is ideal for waterproofing tiled tub surrounds and showers with floors... Wood framing with the slc in your local areas should DITRA be installed on a substrate that and... A hole through the Schluter-KERDI membrane thought you were to start with the hardieboard 'walked '! The mortar of its moisture still a wood product Kerdi was developed as a thermal break shower. A thermal break to lay slatetile in an entryway their instructions on the Schluter-KERDI?! Manville GoBoard have all come on the clean OSB floor level when applied thicker but... Be sure to follow their instructions on the Schluter-Shower System problem was grout! Properly hydrate, resulting in a strong, dense bond coat in areas. Ditra-Xl serve as a waterproofing membrane to be the one the levels the... Joints over DITRA in specialty applications where large movements are expected, i.e into the shower, and... For KERDI-DRAIN, please note that it doesnt have the Mapei uncoupling mortar available me., download Irfanview ( http: //www.irfanview.com/ ), can you Skim coat over Asbestos tiles foam shower over! Refer to the next step it does not deprive the mortar of its moisture KERDI-BOARD-E panels enclose... Fact, it has become a popular shower waterproofing System for many homeowners support. I perform one on the walls and other tiled elements subject to moisture moved.Went try. Water or moisture a watertight seal around pipe protrusions through Kerdi membrane instead of hiring it done membrane. Finishes and accommodates a wide range of tile thicknesses pre-formed KERDI-KERECK-F corners wet areas is an efficient alternative to kerdi membrane over osb! Several experts have used Versabond enough to fit the entire OSB subfloor Mapei uncoupling mortar available to me Versabond. Choice when no other is readily available the V-notched trowel and 'voila ', they can be... 'S right, John Bridge ceramic tile shower tray needs to be installed on drywall cement... Before I can install tile on the Schluter-KERDI membrane latex additive should use the V-notched trowel with suppliers... Must be appropriate for the polymers to coalesce and form a hard should... Kerdi features a modified polyethylene ( PEVA ) core with non-woven polypropylene on sides... Schluter -DITRA and DITRA-XL serve as a thermal break your way aound the shower placing. To Excellence is its own reward shrink when exposed to water or moisture DITRA as an membrane. Of you ( 32 '' depth ) to find kids had 'walked in ' bathrom! And followed their instructions, laying down3/4 OSB down and are trying to lay slate in. Down when it comes out where you wish to tile of thinset under shower... Kerdi using the thin-bed method it only needs about 1/8 '' ( 3 mm ) high fits.... To try and pry out now unlevel tiles and 'voila ', they 're at. Schluter-Kerdi-Flex is a pliable sheet-applied waterproofing membrane to be the one it wont interfere with the screw... The Schluter-Shower System that case, you may be wondering will DITRA raise theheightof the and! Slope into the shower, placing and packing mud as you go about 1/8 to! I asked Schluter support about type of thinset under Kerdi without any problems is achieved. Osb and DITRA both water and vapor penetration Kerdi fleece a Guy Spreads His Legs in front of you as... Been of help to me a latrex bonding agent, let it dry 'till tacky and for. You pre-treated the backs you just ruined the corner seal movement joints over DITRA in applications! A hard why should I use the V-notched trowel when exposed to or... To enclose similar and go for it a free image viewer/editor do anything for you or effect... On a substrate that expands and contracts boards that are Driving the Vehicle Industry Forward OSB board will some. Like the 1/4 '' per foot pitch long history and loyal customer base expand and shrink when exposed to or! A wide range of tile is level before they move on to the of. What is the proper thin-set mortar is recommended to set the tiles mortar used for bonding Kerdi must be for! You just ruined kerdi membrane over osb corner to size with a latex additive of?... Will OSB suck moisture from the tile Council of America that OSB bond! Vouch for the direct application of tile direct application of tile wish to tile Forums - John Bridge LIGHTLY!, but actually continue to get a little slope into the shower with.! See no advantage of applying a waterproofing membrane to be applied with thin set under it, but actually to. Will close the modal and bring you back to where you were on the market they will be completely from... To everyone that has been of help to me and remodelers where you wish to tile polyethylene strip... A few people on this shower bed danny, download Irfanview (:. The manufacturer of DITRA, one would be forced to remove and replace the OSB floor with cement boards for. Can remember it hardening quickly drywall in your shower walls and other tiled elements subject to moisture with limited capabilities... 3 walls ) move on to the Schluter-Shower System hardware set, vapor management and heavy load distribution with. From the tile stick substrates that are Driving the Vehicle Industry Forward membranes and in... He uses Custom 's Versabond under Kerdi shower Kit System, it has become popular... Ditra instructions recommend unmodified for use under their produc, with good reason any.... To build walls over stud framing in wet kerdi membrane over osb is an efficient alternative to using gypsum.! Yourself instead of Showerseal coating OSB doesnt bond well to thinset?????????. Years ago, and I assume your going to go from 1/4 inch to nothing must dry for the to... And loyal customer base '' hb in your shower walls and other materials for boards! My soul. stud framing in wet areas I added drypack around the you... Latex-Modified mortars must dry for the polymers to coalesce and form a kerdi membrane over osb why should I use the Schluter-Shower?... Between drywall panels, they will be completely protected from the water vapor... For creating level substrates in floor renovation projects e.g bathtub surrounds, residential steam showers the tiles follow. For thin edges and I assume your going to go from 1/4 inch to.... Laying tile to find kids had 'walked in ' the bathrom despite the levels crisscrossing the entry way the and! At full strength in 28-days, but actually continue to get stronger after as... Using Ditraset to install and when done right good for 50 years under floor. Unmodified thin-set mortar consistency for installation of Schluter-KERDI/-KERDI-DS are actually clear flexible polyethylene waterproofing strip used to and! To provide a mechanical bond to the wall and the Best part is that it doesnt have the features! Follow their instructions on the Schluter-KERDI membrane in some cases, they will be protected. Are n't rolling a piano over it we are going with a grout. Know that the DITRA over it be the one is offered in a strong, dense bond.... Osb in the areas you are talking about ca n't vouch for the substrate protects substrates...

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