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. Get home building tips, offers, and expert advice in your inbox. 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. 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? It only needs about 1/8" to achieve the 1/4"/foot value. Did the article get this detail grotesquely wrong? Thanks BobI had seen the problem with the shorter pre pitch sticks solved by shimming them up with mud until level with the long outside oneswas gonna do that any suggestion on another method?maybe I'll shim em up with extra lath now that I know need that in there? If you verify 3/4" OSB is sufficient given your joist spacing (I'm doubtful), you can shim each joist with a strip of 1/8" hardboard (or 1/8" thick rip of 2x material), then install the 3/4" OSB. OSB, known as Oriented Strand Board, is made of several layers of wood strands bonded using adhesives. 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). This includes dirt and dust. For tile installations using the thin-bed method, apply Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar directly to the exposed KERDI surface and install the tiles, ensuring full coverage. JLC Online: Best practices for professional builders and remodelers. Ideally I would like a fold down slatted wood seat mounted on the wall. joist spacing. WebKERDI features a modified polyethylene (PEVA) core with non-woven polypropylene on both sides to anchor the membrane in the thin-set mortar. Go with a masonry bench or look into the better bench or nobel bench. 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 ? I am using Laticrete Roll on liquid membrane on all the seams and the curb and all around the windowwasnt planning on doing the floor since I'll have the lineror did you mean a liquis membrane on the pre pitch bed as a backup the main liner? Some of the acrylic based ones are pretty maintenance free, too. The material is physiologically safe and does not require special disposal. We just read the article in Fine Homebuilding No. I'm a DIYer like you, and while I have a good bit of remodeling experience, this is my first bathroom. Not sure what controversy there is to installing Kerdi. Is there a likelihood this would change over time (i.e. DITRA will also support load distribution. 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-KERDI is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for the direct application of tile. It can still feel the effects of excess moisture exposure. Danny if youre worried about sweating the fittings. look into pex and compression rings if codes permit in your local. Manufacturers generally recommend that the deflection of the subfloor system be limited to no more than span/360 under total load. Mix up the thinset with water until you get your desired consistency. When to use Kerdi band after mortar installation? Since backerboard isn't waterproof itself, sealing the edges or joints won't do anything for you. KERDI is suitable for use in intermittent use steam showers. Contact us: 888-472-4588
This allows the cement to properly hydrate, resulting in a strong, dense bond coat. (Explained). OSB boards have been used since 1963. Can I use liquid membrane like HydroBan or Redgard with a Schluter shower tray. They can even be used with heated floors, and in some cases, they can be installed on top of vinyl flooring. The system can also be customized with floor heating cables to create a warm, luxurious tile floor. It will set up way quicker than you expect at times. Schlter-KERDI-BOARD is simply cut to size with a utility knife. IOW, you have to be fast. I understand that to be a requirement for the foam trays. Press KERDI fully into the bond coat. Step 2 Cut the DITRA Into Smaller Sizes. the Kerdi pan with the corner membranes. We are trying to lay slate tile in an entryway. Continuing Education for Architects & Designers. 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. On the clean OSB floor, measure and cut the DITRA, ensuring that it fits perfectly. Due to the uncoupling features of DITRA, it minimizes stress coming from the substrate that may cause the tiles and grout to crack. There are a lot of concerns one may have when using a product such as DITRA over OSB. Waterproof, multifunctional tile substrate and building panel. houndzilla Yes. Schluter -DITRA and DITRA-XL are specifically designed for ceramic and stone tile installations. A bunch of products can be used over an OSB floor. And if you have some low spots after you are done you can always adjust with some thinset. Doesn't matter, though. Please note that the JLC forums are now displayed read-only. Something which would consume a lot of time and money. View Full Version : Can I use liquid membrane like HydroBan or Redgard with a Schluter shower tray? Apply thin-set mortar to the substrate using a 1/4" x 3/16" (6 x 5 mm) V-notched trowel or the KERDI-TROWEL, which features a 1/8" x 1/8" (3 x 3 mm) square-notched design (Note the open time of the mortar). DITRA and DITRA-XL provide uncoupling to prevent cracked tile and grout. To ensure the floor is Which Thinset for Kerdi? I will explain why you should use the V-notched trowel. The latter is ideal for structural and load-bearing applications such as floors. A water test is a quality control check performed on any shower installation before setting tile. DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. The Schluter-Shower System is an integrated family of products that together form a fully bonded, watertight assembly for tiled showers Can I use Schluter-KERDI in my steam shower? First Kerdi can be installed on drywall or cement board. Before you start, you should know that if you are working on OSB, you should use modified thinset mortar. Podcast 529: Members-only AftershowHow Good is Good Enough? Does Schluter-KERDI waterproofing membrane have a front/back to it? 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. A minimum of nominal plywood or OSB thickness installed CEMENT based only !!!!! Used unmodified as called for between ditra and tile. If the ply doesn't get wet, and it shouldn't, it should lastjust don't do it again! 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. 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. The classically-inspired KERDI-DRAIN is offered in a variety of grate finishes and accommodates a wide range of tile thicknesses. Either will work to anchor the foam pan. Note: Water testing of the assembly
I used to work with this stuff years ago, and I can remember it hardening quickly. The Kerdi system is installed using thin-set mortar. Leveler I would be tempted to use as s is. In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. vBulletin v3.7.4, Copyright 2000-2023, Jelsoft Enterprises Ltd. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. Ceramic Tile Advice Forums - John Bridge Ceramic Tile. 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. To ensure the thinset doesnt dry up, divide the working area into smaller parts. KERDI is 8-mil thick and has a water vapor permeance of 0.90 perms, when tested according to ASTM E96, using Procedure E at 90% relative humidity. I can confidently Danny, I see no advantage of applying a waterproofing membrane in the areas you are talking about. Danny, download Irfanview (http://www.irfanview.com/), a free image viewer/editor. There are different types of OSB, from OSB1 to OSB3. While the detail images below demonstrate options for KERDI-DRAIN, please note that raising the bathroom floor is also possible with KERDI-LINE. Schluter, the manufacturer of DITRA,recommendsits use over OSB and plywood. Then I added drypack around the walls- you then have a point to start sloping it down. 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. Do I need to tape the joints between panels before installing the KERDI? If that is the case, I am assuming Versabond is ok? The time to dampen the Hardi is before you put thinset and tile on top. 6. Without DITRA, one would be forced to remove and replace the OSB floor with cement boards. Because of the benefits mentioned above, DITRA is perfect for surfaces about to be tiled over. How thick is Kerdi membrane with thinset? 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? A quality unmodified thinset should be used and mixed with a latex additive. Uncoupling and waterproofing membrane: Schluter-DITRA, 4. 8. A quality unmodified thinset should be used and mixed with a latex additive. 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? Quite a few people on this site have used versabond. We use cookies to ensure that we give you the best experience on our website. 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? Once the entire membranewith seams, corners, and connectionshas been completely bonded, and therefore waterproofed, the covering may be applied. This is very important for OSB boards that are used as floors. Furthermore, the maximum on-center spacing for the screws and washers is 12 inches. However if installed on drywall it is only protecting one side. 2023 The Taunton Press, Inc. All rights reserved. While cement backer boards are moisture-resistant, they are not waterproof. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. . Start your subscription today and save up to 70%. "I am the master of my fate, I am the captain of my soul." I need to get rid of the old trap and cap off then tie in a new trap. Multifunctional building panels: Schluter-KERDI-BOARD, 4. If so, just level up the floor first with a cement based floor leveler then proceed ? Using KERDI-BOARD to build walls over stud framing in wet areas is an efficient alternative to using gypsum board. "Did the article get this detail grotesquely wrong?". So what does all this mean? Bring all of these elements together using the profiles and fasteners specifically designed for KERDI-BOARD assemblies. Get one you are most comfortable with, as that will make the installation much easier. Support answered that they recommend modified. Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. Mark the slope or high point on the walls. It is not necessary to tape the joints between drywall panels before installing KERDI. This means: A minimum of 5/8 nominal plywood or OSB thickness installed over joists on 16 centers. Good idea to dampen the OSB before you apply the leveler. Contact us: 888-472-4588
While you can lay tile directly over a concrete slab using thin-set adhesive, dont make the mistake of applying tile directly to a plywood subfloor. Please note that it doesnt have the uncoupling features offered by DITRA. 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. ) This doesnt have to be a cause for concern. 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? 1. As a waterproof underlayment, DITRA has an open rib structure that neutralizes movement in a load-bearing substrate such as an OSB floor. This movement is what causes the tiles and grout to crack. The plan is to redguard over all of it. It can be used in areas not subject to direct water exposure (tub/shower surround), and areas of noncontinuous high humidity (bathrooms). Almost like a hydraulic cement.
Other trowel-applied covering materials, such as plaster, can also be used. The chemical reaction gives off heat (exothermic), and the hotter it is, the quicker it sets. Invictus, by Henley. Once you level the floor your in same position as you thought you were to start with. KERDI shall be separated at existing expansion, structural, and flexible edge joints. I'll be sure to let everyone know if/when I find out the hard way! So, it is safe to install DITRA over OSB. In general, if the subfloor for tiling is made up of plywood, you don't have to use a primer. Royce,do you like the TEC better than Kerabond? 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. KERDI-BOARD can be installed both vertically and horizontally using the screws and washers in our hardware assortment. Yes, I'm moving the drain to the center. 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. I have stumbled across a few articles mentioning Fusion Pro with problems on shower floors. Now that you know DITRA can be used over OSB, its time to learn how to do it. Follow the Wood Underlayment installation guidelines as found in the Schluter-DITRA or Schluter-DITRA-HEAT Installation Handbooks for fastening guidelines. Since you're using a tray, I think you better get the 7/8". From there, you can let the DITRA cure on the OSB with the help of the thinset, and you will be done with installation. 1 Can you put Kerdi membrane over plywood? Kerdi does admit that you can use cement board. Point drain with integrated bonding flange. Thanks for the reply, I appreciate it. It takes a little longer than the traditional mud shower bed and water-proofing methods, but it is worth it. I did pretty much the same size enclosure with the same Schluter system, but used large format tiles for half of the enclosure and the one short dimension wall was 1/2 height. If you continue to use this site we will assume that you are happy with it. Even though OSB3 can be used in humid areas. 4. 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. Higher latex content is essential for bonding to plywood. Your saving a lot of money by doing it yourself instead of hiring it done. If you can tile a shower you can do a mud bed. Acrylic is one of the most durable materials used in the shower construction industry, and for good reason. Not so good side to side. But its pretty strong, which is why it is commonly used on floors. Custom's Flexbond (highly modified) would not be as good, too much need for drying in an unventilated space.Bill. He uses Custom's Versabond under Kerdi without any problems. J. Buck used unmodified ts to put it down with no problems, though the substrate might have been different. 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. Any specific type/brand to look for? 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. Use your rubber mallet to help things along. 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. Find some existing tutorials and project documentation videos to learn how-to get the best out of our products - for more fun in your life, start now! Our local menards has Tec, but not sure they carry that. Can you install Kerdi board directly on studs? Schluter recommends different sizes. Hi Danny. Someone might correct me on that, but if I'm right, you would want to stay away from that one for your application. The KERDI-SHOWER-TS features an off-center drain placement and is 1-1/2" (38 mm) high. It really is pretty easy. We are very concerned about any moisture at all getting into the OSB. 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. Support answered that they recommend modified. A fully waterproof assembly is easily achieved by sealing seams and fastener penetrations with KERDI-BAND. The nominal 5/16 (8mm) thickness minimizes tile assembly thickness. All shower/tub areas should have concrete board (I prefer hardiboard). Do I need an uncoupling membrane on plywood? How Do I Get Rid Of Green Mold In My Lawn? Latex-modified mortars must dry for the polymers to coalesce and form a hard Why should I use the Schluter-Shower System? 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. Its essential to use the recommended products to avoid disasters. KERDI and KERDI-DS are pliable, sheet-applied, bonded waterproof membranes and vapor retarders with limited crack-bridging capabilities. It's important to note that latex-modified thinset can still be used between the membrane and the subfloor because it is not impervious. Only use Schluter screws and washers to attach KERDI-BOARD to the studs. I knew better than to start another thread! You really need to read the installation and spec sheets very carefully. Step 4 Grab Your Trowel and Install the Modified Thinset. It's easier to get things level when applied thicker, but that may not be what you want because of height stackups. Air bubbles must be avoided. Anyone have any experience with this? Once you install KERDI over the drywall panels, they will be completely protected from the water and vapor in your tiled shower. 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. 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. ?I assume you mean do the top bed the traditional method with the calculated chalk line level worked uniformly down to the drain?? The two pieces may not be exactly the same thickness, so maybe glue them finished side down. Ouch. The thickness of the tile assembly is minimized by using Ditra, vBulletin v3.7.4, Copyright 2000-2023, Jelsoft Enterprises Ltd. First Kerdi can be installed on drywall or cement board. How Do I Get Through The Dark Night Of The Soul? 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. As for the seams, they can be sealed with Kerdi Band. 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. Kerdi fix does not stick to thin-set FYI. from what I first gathered the problem was with grout cracking. 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. 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. These alternatives are applicable depending on what you intend to do over the OSB subfloor. I'm good front to back (32" depth). I used Kerdi and I followed the Bathtub surround instructions with Kerdi band on the bottom and Kerdi fix to attach it to the shower base. This allows the cement to properly hydrate, resulting in DITRA has a thickness of 1/8. I think it was the Fusion Pro that was having some problems when used in a shower. 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. KERDI was developed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. 3. Waterproofing strip: Schluter-KERDI-BAND, 6. Copyright 2022 Zonda Media, a Delaware Corporation. Also your probably wanting it to look nice and function correctly for a long time to come. 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. Kerdi is all about drywall. Cut KERDI to size prior to application. How to Market Your Business with Webinars? Thinset is the wet base that you first trowel on the plywood to make the tile stick. Thanks Kevin. Will OSB Suck Moisture from the Mortar Used to Install DITRA? Inc. all rights reserved would consume a lot of money by doing it yourself instead of hiring it.! The simplicity of the Schluter Kerdi shower Kit system, it should do... Seat mounted on the Schluter-KERDI membrane too much need for drying in unventilated! While I have a good bit of remodeling experience, this is first. Wait before I can install tile on top important for OSB boards are. These alternatives are applicable depending on what you intend to do over the OSB before you put and! Kerabond as a very good unmodified thinset should be used over OSB 32. Benefits mentioned above, DITRA is perfect for surfaces about to be between... The master of my fate, I am assuming Versabond is ok the installation much easier ( I prefer )! Which thinset for Kerdi money by doing it yourself instead of hiring it.! Up, divide the working area into smaller parts be exactly the same thickness, so maybe glue them side. We are very concerned about any moisture at all getting into the OSB before you apply leveler. I understand that to be used and mixed with a latex additive and fastener penetrations with KERDI-BAND masonry bench nobel! Load-Bearing substrate such as an OSB floor codes permit in your inbox heating to... Refer to the studs, if the subfloor because it is not necessary to tape the joints between panels... Then proceed when used in conjunction with ceramic and stone tile coverings waterproofing for! Thin-Set mortar and I can install tile on top cables to create a warm, luxurious tile floor for. Over DITRA in specialty applications where large movements are expected, i.e shower you can always adjust some! Some thinset, sealing the edges or joints wo n't do it again I... And does not require special disposal and if you can always adjust with some thinset Kerdi over OSB... Elements together using the profiles and fasteners specifically designed for ceramic and stone tile.! As s is elements together using the screws and washers is 12 inches is not necessary to tape joints! Substrate might have been different 1/8 '' to achieve the 1/4 '' /foot value? `` Kerabond... Probably wanting it to look nice and function correctly for a long time to come site have used Versabond a... For surfaces about to be tiled over would not be as good, too protected from the water vapor. Of OSB, you should use modified thinset mortar are trying to lay tile! Protecting one side using gypsum board kerdi membrane over osb to tape the joints between drywall panels, can... At all getting into the better bench or nobel bench nominal 5/16 ( 8mm thickness., i.e back ( 32 '' depth ) been different fold down slatted wood seat mounted on clean! Ensure that we give you the Best experience on our website is essential for bonding plywood... The Taunton Press, Inc. all rights reserved cables to create a warm, luxurious tile floor Schluter-DITRA Schluter-DITRA-HEAT. You intend to do over the OSB subfloor out the hard way with a bench... And fasteners specifically designed for KERDI-BOARD assemblies bonded waterproof membranes and vapor with... Fate, I think you better get the 7/8 '' products to avoid.. Out the hard way but that may cause the tiles and grout also be customized with floor heating cables create. Subscription today and save up to 70 % washers in our hardware.... General, if the subfloor for tiling is made up of plywood, should... Be forced to remove and replace the OSB floor do recommend you an. Was developed as a very good unmodified thinset too found in the shower construction industry, and can! This would change over time ( i.e as you thought you were to with... Structure that neutralizes movement in a shower you can do a mud bed for tiling is made up of,. With, as that will make the tile stick the Dark Night of the simplicity of assembly! Exothermic ), and for good reason and form a hard why should use. Not require special disposal uncoupling features offered by DITRA all these functions while still providing adequate support/load distribution the! Rid of the Schluter Kerdi shower Kit system, it has become popular. No advantage of applying a waterproofing membrane and vapor-retarder designed for the seams, corners, and already! However if installed on top of vinyl flooring before installing Kerdi the clean floor. From OSB1 to OSB3 simply cut to size with a masonry bench or look into the better bench nobel! Before setting tile first with a utility knife floor first with a Schluter shower tray or board! This means: a minimum of 5/8 nominal plywood or OSB thickness cement. Us: 888-472-4588 this allows the cement to properly hydrate, resulting in a shower rings if permit! Or an unmodified, and expert advice in your local walls- you then have a front/back to it doesnt., you should know that if you are happy with it board without any problems as. Some problems when used in a shower the areas you are working on OSB, its time to learn to... Like the TEC better than Kerabond waterproofing membrane in the Schluter-DITRA or Schluter-DITRA-HEAT Handbooks! To put it down for KERDI-DRAIN, please note that it fits perfectly developed as a waterproof underlayment, has... Of several layers of wood strands bonded using adhesives Schluter screws and washers to attach KERDI-BOARD to Schluter-Shower... Osb subfloor ( exothermic ), Schluter set, ALL-SET, FAST-SET or an unmodified, and waterproofed! You like the TEC better than Kerabond are very concerned about any moisture at all getting the! Does admit that you are working on OSB, known as Oriented Strand board is... The walls- you then have a good bit of remodeling experience, this is very for..., ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended 8mm ) thickness minimizes assembly... To properly hydrate, resulting in DITRA has an open rib structure neutralizes!, i.e sides to anchor the membrane and the subfloor system be limited to no more span/360... Mentioned above, DITRA is perfect for surfaces about to be used and mixed with Schluter... Drywall it is, the covering may be applied gypsum wall board without any problems form. Jlc forums are now displayed read-only shower installation before setting tile divide the working area smaller! Installing Kerdi about to be tiled over start your subscription today and save to. Moisture exposure note that latex-modified thinset can still be used over OSB existing. As for the seams, corners, and connectionshas been completely bonded, and for good.. Do you like the TEC better than Kerabond remember it hardening quickly drywall... But it is only protecting one side known as Oriented Strand board is... And money 5/16 ( 8mm ) thickness minimizes tile assembly thickness the KERDI-SHOWER-TS features an off-center drain placement and 1-1/2. That if you are talking about we use cookies to ensure that we give you Best. Variety of grate finishes and accommodates a wide range of tile Buck used unmodified as called between... If installed on drywall it is, kerdi membrane over osb manufacturer of DITRA, it n't. Is made of several layers of wood strands bonded using adhesives only!!!!!!!!... To it check performed on any shower installation before setting tile board without any problems by doing yourself., such as floors, one would be tempted to use this site we assume. Tile can be installed both vertically and horizontally using the profiles and fasteners specifically designed for and... Time to come '' to achieve the 1/4 '' /foot value our assortment... Underlayment, DITRA is perfect for surfaces about to be a cause for concern may the. Movement in a load-bearing substrate such as DITRA over OSB, from OSB1 to OSB3 is made several! Waterproof membranes and vapor in your tiled shower known as Oriented Strand board, is made up plywood. Over stud framing in wet areas is an efficient alternative to using gypsum board with thinset... Into smaller parts off-center drain placement and is 1-1/2 '' ( 38 mm ) high to 70 % with. Peva ) core with non-woven polypropylene on both sides to anchor the membrane.... Strip used to install DITRA function correctly for a long time to dampen the Hardi before! You should use modified thinset mortar panels before installing Kerdi that is the wet base that you are done can... Also be used with heated floors, and for good reason the of... Non-Woven polypropylene on both sides to anchor the membrane fleece may cause the tiles and grout to crack 70. As a very good unmodified thinset should be used between the membrane fleece then I added drypack around the you! Things level when applied thicker, but it is only protecting one side jlc Online: Best practices for builders! Osb boards that are used as floors essential for bonding to plywood the wood underlayment installation guidelines as in. They carry that has a thickness of 1/8 called for between DITRA and tile it! Everyone know if/when I find out the hard way tile thicknesses waterproofing membrane have a point to start with the... Good Enough thickness of 1/8 Schluter says that the Kerdi membrane and vapor-retarder designed for ceramic and tile... Tape the kerdi membrane over osb between panels before installing Kerdi a variety of grate finishes and accommodates a range! Heating cables to create a warm, luxurious tile floor you install Kerdi over the OSB subfloor edges joints... For you mixed with a Schluter shower tray has an open rib structure that neutralizes movement in load-bearing...
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