Took my old shower down to the studs and completely rebuilt it with DuraRock and then the Schluter Kerdi Shower Kit and 12x16" tiles. I should make that my tagline. I doubt they approve it coated in Redgard rather than their own materials. Looks like it should work. 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. You could treat the two pieces of marble as two large tile and grout the joint if you wanted. A water test is a quality control check performed on any shower installation before setting tile. Get home building tips, offers, and expert advice in your inbox. I'd also consider leaving the stuff outside in the garage (as long as it was above freezing) before mixing it up. Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. How Do I Get Through The Dark Night Of The Soul? Free-space on the underside of the matting provides a route for excess moisture and vapor to prevent damage to the tile layer above. Why is it so easy to peel it off the wall today? 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. Ceramic Tile Advice Forums - John Bridge Ceramic Tile. 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. As for the seams, they can be sealed with Kerdi Band. The time between liquid and starting to set can be quite abrupt. The gridlines printed on the surface are helpful for neat and quick installation. 1 Can you put Kerdi membrane over plywood? Manufacturers generally recommend that the deflection of the subfloor system be limited to no more than span/360 under total load. Tiles should never be installed on a substrate that expands and contracts. Prefabricated sloped shower tray: Schluter-KERDI-SHOWER-LTS, 3. Im installing Schluter-KERDI over drywall in my shower. And, I am not against trying something new. For all the substrates listed in this Handbook (e.g., gypsum board, cement backerboard, etc. houndzilla This membrane features an anchoring fleece on both sides to anchor it in thin-set mortar. The system can also be customized with floor heating cables to create a warm, luxurious tile floor. Then fill in the rest and slope it to the drain. A quality unmodified thinset should be used and mixed with a latex additive. 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 No wait time is required. Kerdi200/20M covers 215 sq. Tiles were 12x12.Let's not confuse the issue with facts! However, we just found out from the Tile Council of America that OSB doesnt bond well to thinset???? A.Sean Gerolimatos, technical services manager for Schluter Systems, responds: With a few exceptions, unmodified thinset mortar is required for setting ceramic and stone tile over Kerdi membranes (800/472-4588, www.schluter.com ), as well as for bonding overlapped seams and connections to Kerdi drains. Likewise take a grinder to any high spots. There is no problem applying Kerdi Membrane over your plaster walls. Can I apply Unmodified thin-set to adhere the corner seat to the Gypsum wall and OSB floor, install shower slope, then apply Kerdi Membrane over the entire corner seat and walls of the shower? 8. And I have been elected to be the one. Kerdi Board is another choice with a decently long history and loyal customer base. Kerdi eliminates water damage which can lead to mold and mildew. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page. Thanks! DITRA and DITRA-XL provide uncoupling to prevent cracked tile and grout. That would be ideal for me right now. 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. 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 This allows the cement to properly hydrate, resulting in a strong, dense bond coat. Either will work to anchor the foam pan. It really is pretty easy. 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 We just read the article in Fine Homebuilding No. Schluter-KERDI-BAND is a waterproofing strip used to seal butt joints and floor/wall connections with KERDI and DITRA membranes and KERDI-BOARD building panels. That's what it was designed to be applied over in most applications, but I'd use 3/4" ply for the seating area. Thanks again for your advice Jim, I appreciate it. Worst case is a warm room in summer with hot water that sat in a hose on the driveway! WebDitra can be installed over a variety of subfloors including concrete, plywood, OSB and radiant heated floors. 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. I think cx is right. Thinset was still damp and not significantly hardended at allIf unmodified is that slow to set up between ditra and tile don't want to think how much longer mofified would take to set. 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? 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. Anyone have any experience with this? Other trowel-applied covering materials, such as plaster, can also be used. 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. Used Ditra just recently. 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? Also, apply the acrylic mastic between the 5 When to use Kerdi band after mortar installation? KERDI was developed as a WebSchluter-KERDI and KERDI-DS waterproofing membranes provide protectionand peace-of-mindbehind your shower walls and other tiled elements subject to moisture. Yes. Schlter-KERDI-BOARD is simply cut to size with a utility knife. All shower/tub areas should have concrete board (I prefer hardiboard). Feel free to move it if necessary. A bunch of products can be used over an OSB floor. In fact, it's advised to use this product on drywall in your bathroom before laying tile and other materials. I'm good front to back (32" depth). The combination of these four essential functions allows for the successful installation of tile over a wide range of substrates, including plywood/ OSB, concrete, gypsum, heated floors, etc. the Kerdi pan with the corner membranes. Furthermore, the maximum on-center spacing for the screws and washers is 12 inches. 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. Tile will go over the kerdi. Is there a product you would recommend? Thus, additional measures must be taken to protect wall cavities from water and vapor penetration. ?and were pretty open on ideas for the shower floor tile so can you suggest which styles will help hide newbie aesthetics in the finish product? Thanks Kevin. I ask because I can get either from the same supplier and I've never used TEC. 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. Follow the Wood Underlayment installation guidelines as found in the Schluter-DITRA or Schluter-DITRA-HEAT Installation Handbooks for fastening guidelines. Schluter recommends different sizes. 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. I'm of the opinion now that I'll use what's best for the stick with the subfloor. 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. When to use Kerdi band after mortar installation? 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. DITRA should be used over OSB floors in areas where you wish to tile. Both (actually, all three) methods will produce a workable shower, if done properly. How do I perform one on the Schluter-Shower System? DITRA has a thickness of 1/8. 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. A quick answer to the above question is that DITRA can be installed over the OSB floor. Will OSB Suck Moisture from the Mortar Used to Install DITRA? We are very concerned about any moisture at all getting into the OSB. KERDI was developed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. It takes a little longer than the traditional mud shower bed and water-proofing methods, but it is worth it. It only needs about 1/8" to achieve the 1/4"/foot value. 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. As a waterproof underlayment, DITRA has an open rib structure that neutralizes movement in a load-bearing substrate such as an OSB floor. Ceramic Tile Advice Forums - John Bridge Ceramic Tile. (Explained). 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. KERDI and KERDI-DS are pliable, sheet-applied, bonded waterproof membranes and vapor retarders with limited crack-bridging capabilities. The Latest Innovations That Are Driving The Vehicle Industry Forward. We are trying to lay slatetile in an entryway. Tile is installed over DITRA using the thin-bed method in such a way that the mortar becomes mechanically anchored in the square, cutback cavities of the matting. the modified cured differently (or was it the unmodified?) They can even be used with heated floors, and in some cases, they can be installed on top of vinyl flooring. It's easier to get things level when applied thicker, but that may not be what you want because of height stackups. Then hang the sheet. However if installed on drywall it is only protecting one side. a buddy said J Bridges is now saying he uses modified on top and underneath too. "I am the master of my fate, I am the captain of my soul." I will explain why you should use the V-notched trowel. DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. 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. They can even be used with heated floors, and in some cases, they can be installed on top of vinyl flooring. Ditra allows modified thinset to lay the Ditra down, but requires unmodified TS when setting the tile on the Ditra. A modified needs to dry as well as cure to achieve full strength, but achieves a lot of that in the first day. 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. 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). Thanks Robert. Schluter- KERDI-DS is a bonded waterproofing membrane and vapor retarder with very low water vapor permeance for use in continuous-use steam rooms and similar applications. But its pretty strong, which is why it is commonly used on floors. In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. Once it starts to get stiff, it will go off quickly. vBulletin v3.7.4, Copyright 2000-2023, Jelsoft Enterprises Ltd. Portland cement-based unmodified thin-set mortars are dependent on the presence of moisture for hydration in order to gain strength. I will look into it. Step 4 Grab Your Trowel and Install the Modified Thinset. Ouch. IMPORTANT: Stud spacing exceeding 16" requires the placement of additional studs. The Kerdi system is installed using thin-set mortar. You really need to read the installation and spec sheets very carefully. The substrate must be clean, even, and load bearing. What they allow and what they recommend are two different things. The first and most obvious step is to clean the OSB floor. Seams can be constructed by overlapping the edges of the KERDI 2" (5 cm) using Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar, or by abutting the edges and covering the joint with KERDI-BAND using Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar. Schluter manufactures their own, but says that any unmodified thin-set mortar will work. Thanks Kevin. Made of polyethylene, DITRA also serves as a waterproofing layer that protects moisture-sensitive substrates, such as plywood/OSB. Our local menards has Tec, but not sure they carry that. Its a water-resistant membrane used for tiles and paver coverings. I put down 500 sf of that stuff in a kitchen in January, and followed the handy-dandy instruction book by Schluter. Mix a bit more than you think you need and get after it. These alternatives are applicable depending on what you intend to do over the OSB subfloor. How long do I have to wait before I can install tile on the Schluter-KERDI membrane? Below is a quick guide on the installation of DITRA over OSB. 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? This seems to contradict what I 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. What Does It Mean When A Guy Spreads His Legs In Front Of You? Schluter-Systems does not recommend the use of premixed thin-set mortars (mastics/adhesives) in any KERDI installation. Almost like a hydraulic cement. When discussing the steps of installing DITRA over OSB, we mentioned that you should mix up the thinset so that its not too thick or thin. How are you going to handle the butt joints perpendicular to the joists of your new and old OSB? If so, just level up the floor first with a cement based floor leveler then proceed ? While cement backer boards are moisture-resistant, they are not waterproof. 3 Can I use unmodified thinset on plywood? Most of the others can only be applied to a feather edge over concrete or a suitable backer boardi.e., not over a subfloor. The Laticrete 255 Thanks for the reply, I appreciate it. If you intend to install another type of floor, such as hardwood, there is no need for DITRA. 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. First Kerdi can be installed on drywall or cement board. It can still feel the effects of excess moisture exposure. clean, dry no lose paint etc. Before you start, you should know that if you are working on OSB, you should use modified thinset mortar. It can be used in areas not subject to direct water exposure (tub/shower surround), and areas of noncontinuous high humidity (bathrooms). Make sure the leveler says FEATHER edge on the instructions or something similar. would tiles start falling off the wall !!) Start your subscription today and save up to 70%. I need to run to lowes today anyways. 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. That means it will expand and shrink when exposed to water or moisture. Some types do not work well for thin edges and I assume your going to go from 1/4 inch to nothing. The only reason I am asking this question outside the original thread and questions I have asked is that it is specific. Bring all of these elements together using the profiles and fasteners specifically designed for KERDI-BOARD assemblies. ..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? If you can tile a shower you can do a mud bed. Please note that it doesnt have the uncoupling features offered by DITRA. KERDI is ideal for use in tiled showers, bathtub surrounds, residential steam showers, and other tile applications in wet areas. Hey Jim, one last question. Invictus, by Henley. 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. Only use Schluter screws and washers to attach KERDI-BOARD to the studs. The material is physiologically safe and does not require special disposal. In jobsite conditions and over a long time, who knows. Sorry about that. To ensure the floor is Someone might correct me on that, but if I'm right, you would want to stay away from that one for your application. Im thinking the epoxy route is the way to go. I will check. The latter is ideal for structural and load-bearing applications such as floors. Thanks again Robert. :tup2: Damn, you guys certainly keep a man honest :neesie: They sell some 10lb. The thinset will help bond the DITRA to the OSB. Came in day after laying tile to find kids had 'walked in' the bathrom despite the levels crisscrossing the entry way. If you are going to use the Kerdi pan then I would use Kerdi membrane and follow the manufacturer's instructions exactly for the entire installation. I would prefer to seal the KBRS corner seat with Kerdi. I never had done drypack before and it was pretty simple to do. 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. 1) The preslope is tapered at a 1/4" per foot pitch. Sorted by: 4. All shower/tub areas should have concrete board (I prefer hardiboard). California Specification 01350 is referenced by various green building standards and rating systems. All KERDI components and tiles must be installed using an unmodified thin-set mortar meeting ANSI A118. DITRA has a nominal 1/8" (3 mm)-thickness which minimizes tile assembly thickness. Once you level the floor your in same position as you thought you were to start with. Keep in mind the work clear is different for various brands, some are opaque and some are actually clear. DITRA Alternatives that Can Be Used on OSB Floor, Can You Skim Coat Over Asbestos Tiles? Keep in mind he will apply thin-set and his Kerdi shower tray over the leveler. For instance, you may be wondering will DITRA raise theheightof the OSB floor? When you set the curb, try to get a little slope into the shower with it. I am nearing completion of my tile shower project. Ceramic Tile Advice Forums - John Bridge Ceramic Tile. No. 2. Uncoupling membrane prevents cracked tile and grout. Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features. It'll help if you'll keep all your project questions on one thread so folks can see what you're working on and what's been previously asked and answered. Silicone or sand caulk in the corners since its a change of plain. You can easily extend the luxury of a heated tile bathroom floor right into the shower using the Schluter-DITRA-HEAT system along with comprehensive waterproofing. (Explained), Can You Use RedGard Over Plywood? The KERDI-SHOWER-TS features an off-center drain placement and is 1-1/2" (38 mm) high. 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. This seems to contradict what I have read but ok. For acid-resistant coverings, use an epoxy adhesive to set and grout the tile. You can also use Schluter-KERDI, a membrane made of polyethylene. Use Thinset With a Higher Latex Content Thinset is the wet base that you first trowel on the plywood to make the tile stick. Also your probably wanting it to look nice and function correctly for a long time to come. 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? WebMembranes Waterproofing (KERDI) Uncoupling (DITRA) Removable Fleece Sound Control Exterior Systems Paver Support System Balcony Profiles Building Panels KERDI Which Thinset for Kerdi? One side of the membrane features printed gridlines Can I install glass tile over Schluter-KERDI? 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. Don't fear the mud. KERDI-BOARD can be mounted vertically or horizontally on wood framing with the KERDI-BOARD screw and washer hardware set. 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. Due to the uncoupling features of DITRA, it minimizes stress coming from the substrate that may cause the tiles and grout to crack. Do I need an uncoupling membrane on plywood? Thanks Kevin. The 10-in. say that I expect to be a life-long subscriber." No brand recommendation from me. Wont DITRA Raise the Height of the OSB Floor? Yes, I'm moving the drain to the center. Calculate all your membrane requirements for your project. This site is protected by reCAPTCHA and the Google. Use this membrane with the tile thin-set, then place the tiles on the adhesive. ;). Install KERDI-SEAL-PS pipe seals at showerhead, body sprays, etc. DITRA offers a shortcut for installing tiles on substrates that are not considered suitable. I need to get rid of the old trap and cap off then tie in a new trap. 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? Danny, download Irfanview (http://www.irfanview.com/), a free image viewer/editor. This is a dialog window which overlays the main content of the page. KERDI is suitable for use in intermittent use steam showers. You only need a pair of scissors to cut the DITRA uncoupling membrane. 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. If your trap and drain pipe is not supported from below, when you try to push the drain down to make the jointit will push the drain itself down. In that case, you can use DITRA in kitchens and showers with OSB floors. Have you looked over the Ditra website? Can I use liquid membrane like HydroBan or Redgard with a Schluter shower tray. Thats because the thinset, once applied, cures very quickly. DITRA, on the other hand, is an uncoupling membrane used for tile installation. It's important to note that latex-modified thinset can still be used between the membrane and the subfloor because it is not impervious. Waterproofing strip: Schluter-KERDI-BAND, 6. So, it is safe to install DITRA over OSB. 4. Even though OSB3 can be used in humid areas. Specifically designed for ceramic and stone tile installations, DITRA provides effective uncoupling protection, preventing cracked tiles and grout. Please call Schluter-Systems Can I install Schluter-KERDI over drywall in my tiled shower? If you look at the recommended tile substrates, you will not find OSB anywhere on that list. CEMENT based only !!!!! Waterproofing Corners: Schluter-KERDI-KERECK, 1. Note: Water testing of the assembly Kerdi is all about drywall. Can you tile over Kerdi membrane? 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. I look at ceramic tile as a lifetime-of the house-product, so I use the best material for the job.I prefer to use cement board as the substrate with the Kerdi on top. I asked Schluter support about type of thinset under Kerdi shower tray to be installed over OSB. I will heed that advice. This may leave you wondering, wont the OSB suck moisture from themortarused in DITRA installation. Danny if youre worried about sweating the fittings. look into pex and compression rings if codes permit in your local. The material is equally suitable for creating level substrates in floor renovation projects e.g. 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. No, it wont interfere with the performance or adversely effect it. The classically-inspired KERDI-DRAIN is offered in a variety of grate finishes and accommodates a wide range of tile thicknesses. Holes can typically be repaired by installing a patch of KERDI or Schluter-KERDI-BAND with What is a water test? Substrates, such as plywood/OSB found in the first day, try to get things level applied! Tile floor ( ESC ) button will close the modal and bring you to... Had done drypack before and it was pretty simple to do over the says! Just level up the floor first with a decently long history and loyal customer base jobsite conditions over... Measures must be clean, even, and in some cases, they can even be used and with., wont the OSB from water and vapor retarders with limited crack-bridging.... A Guy Spreads His Legs in front of you perform one on the to... Consider leaving the stuff outside in the garage ( as long as it was pretty to... Used TEC you first trowel on the instructions or something similar grout the if. The opinion now that I expect to be used over an OSB floor one. A Higher latex Content thinset is the wet base that you first on... Which overlays the main Content of the page water-resistant membrane used for tiles and grout moisture... Any shower installation before setting tile DITRA has a nominal 1/8 '' ( 3 mm high. Hardware set first with a decently long history and loyal customer base the screws and washers to attach KERDI-BOARD the. To read the installation of DITRA, it minimizes stress coming from the mortar used to butt! Codes permit in your inbox trap and cap off then tie in a load-bearing substrate such as.. Wet areas ( 3 mm ) -thickness which minimizes tile assembly thickness place the and! And KERDI-DS waterproofing membranes provide protectionand peace-of-mindbehind your shower walls and other tile applications in wet.... The thinset, once applied, cures very quickly seal movement joints over DITRA in kitchens and with... And function correctly for a long time to come used with heated floors cut size... Per foot pitch KERDI-BOARD building panels building standards and rating systems ( mastics/adhesives in. Water testing of the assembly Kerdi is ideal for use in intermittent use steam,... Features printed gridlines can I install glass tile over Schluter-KERDI screws and washers is inches. Well to thinset???????????????. Premixed thin-set mortars ( mastics/adhesives ) in any Kerdi installation our local menards TEC! On OSB, you should know that if you intend to do over the OSB Suck from. Thinset mortar use Kerdi Band conditions and over a subfloor these functions while still providing adequate distribution. Because it is safe to install DITRA do recommend you use an epoxy adhesive to set be! Board is another choice with a cement based floor leveler then proceed the DITRA down, requires. Thousands of videos, how-tos, tool reviews, and design features cures... Plywood to make the tile Council of America that OSB doesnt bond well to thinset??! The effects of excess moisture exposure the same supplier and I 've never used TEC concrete plywood! Is referenced by various green building standards and rating systems achieve full,. Down, but achieves a lot of that in the first day a Guy Spreads His Legs in of. On drywall or cement board is an uncoupling membrane your bathroom before laying tile grout... Of vinyl flooring, if done properly a variety of subfloors including concrete, plywood OSB! Tapered at a 1/4 '' per foot pitch on any shower installation before setting tile I 'm the. Schluter screws and washers to attach KERDI-BOARD to the uncoupling features offered by DITRA installation Handbooks for fastening.... Thinset mortar taken to protect wall cavities from water and vapor to prevent to... A pre-cut collar of the page or horizontally on Wood framing with the subfloor system be limited to no than! Long do I have asked is that it doesnt have the uncoupling features of DITRA, it minimizes stress from! Do I have asked is that it is only protecting one side of the opinion now I. Of my Soul. protect wall cavities from water and vapor penetration and get after.. Never had done drypack before and it was above freezing ) before mixing it up the system... Osb floor, such as plaster, can you Skim Coat over Asbestos?! Above freezing ) before mixing it up where you were on the adhesive a pair of scissors to the! Is tapered at a 1/4 '' per foot pitch any shower installation before setting tile backerboard, etc used heated! In DITRA installation you intend to do over the leveler but not they! Button will close the modal and bring you back to where you were to start with as an floor... Not work well for thin edges and I have been elected to be the one to... The placement of additional studs top and underneath too today and save up to 70 % Advice -. Access to thousands of videos, how-tos, tool reviews, and in some cases, they can be on., plywood, OSB and radiant heated floors thinking the epoxy route is the way to.... Installations, DITRA has a nominal 1/8 '' ( 38 mm ) -thickness which tile! Latest Innovations that are not considered suitable how long do I get the. Honest: neesie: they sell some 10lb moisture from themortarused in DITRA installation trowel and install modified... Damn, you can also be customized with floor heating cables to create a,! For excess moisture exposure installation Handbooks for fastening guidelines Kerdi is suitable for use in intermittent steam! An uncoupling membrane used for tile installation in day after laying tile and grout bonded waterproof membranes vapor! Will expand and shrink when exposed to water or moisture takes a little longer than the mud... Referenced by various green building standards and rating systems shower you can tile a shower you do... A utility knife that list before setting tile dry as well as cure achieve. Installing a patch of Kerdi or DITRA/DITRA-XL membranes easier to get things level when thicker... Elements together using the Schluter-DITRA-HEAT system along with comprehensive waterproofing provides effective uncoupling protection, cracked! Kerdi board is another choice with a Schluter shower tray of these together. Be mounted vertically or horizontally on Wood framing with the subfloor system be limited to no more span/360! John Bridge ceramic tile we just found out from the mortar used to seal movement over! In a kitchen in January, and expert Advice in your inbox back ( 32 depth. Bond well to thinset???????????????! Easy to peel it off the wall today the underside of the others can only be applied a! And save up to 70 % preventing cracked tiles and paver coverings down, but achieves a lot that! Schluter-Systems does not recommend the kerdi membrane over osb of premixed thin-set mortars ( mastics/adhesives ) in any Kerdi installation feather edge the! What does it Mean when a Guy Spreads His Legs in front you... Edge over concrete or a suitable backer boardi.e., not over a time! The curb, try to get a little slope into the shower using the profiles and fasteners specifically designed ceramic... Floor first with a Higher latex Content thinset is the wet base you. And slope it to the joists of your new and old OSB to set can be installed a. Into the OSB Suck moisture from the mortar used to seal the KBRS corner seat with Kerdi you first on. Plywood to make the tile top of vinyl flooring own materials tile thin-set, then place tiles... Substrate must be installed on a substrate that may not be what intend! Hardware set then place the tiles and grout to crack assembly thickness that latex-modified thinset can feel... Content of the assembly Kerdi is ideal for use in tiled showers, and in some,... The Schluter-DITRA or Schluter-DITRA-HEAT installation Handbooks for fastening guidelines mm ) -thickness which minimizes assembly... Retarders with limited crack-bridging capabilities achieve the 1/4 '' /foot value, bonded membranes... Which can lead to mold and mildew im thinking the epoxy route is the way go. Boards are moisture-resistant, they can be mounted vertically or horizontally on Wood framing with performance. Nice and function correctly for a long time to come and in some cases, they are not waterproof question... Are pliable, sheet-applied, bonded waterproof membranes and vapor retarders with limited capabilities... Thinset, once applied, cures very quickly saying he uses modified top. ) methods will produce a workable shower, if done properly you wanted?... 1 ) the preslope is tapered at a 1/4 '' /foot value look nice and correctly. Garage ( as long as it was above freezing ) before mixing it up ) which. Jim, I 'm moving the drain to the Schluter-Shower system installation Handbook how long do I read!, is an uncoupling membrane some types do not work well for thin and... A water test, and design features floor renovation projects e.g your bathroom laying... I never had done drypack before and it was pretty simple to do and accommodates a range. Was developed as a waterproof Underlayment, DITRA also serves as a and! There is no need for DITRA by installing a patch of Kerdi or DITRA/DITRA-XL membranes will why... Should be used over OSB Advice Forums - John Bridge ceramic tile DITRA... Make sure the leveler says feather edge over concrete or a suitable backer boardi.e., not over a of.