kerdi membrane over osb
Back-buttering is a useful way to help ensure proper coverage, particularly when installing large-format tiles (e.g., 12" x 12" (305 mm x 305 mm) and larger). We just read the article in Fine Homebuilding No. View Full Version : kerdi foam shower tray over OSB. Start by cleaning the cement board with a mineral oil soap; this will help reduce mold and mildew growth throughout the life of the shower. Additionally, you can use KERDI-BAND around corners, seams, and joints to help with a waterproof installation. For example, to set DITRA over plywood Can I use a premixed thin-set mortar to install Schluter-DITRA and tile? I knew better than to start another thread! Cement board is particularly vulnerable to water damage, so waterproofing can help protect it and help it last longer. Anyone have any experience with this? Tile can be installed over DITRA and DITRA-XL immediately; no need to wait for the mortar to cure. Waterproof, multifunctional tile substrate and building panel. 
I will give it a shot. The cement board can also become weakened and start to flake away when it absorbs moisture, causing ugly spots and patches to start appearing on the wall. Schluter recommends using a modified thin-set over wood subfloors. Webkerdi membrane over osb. Finally getting ready to finish my shower project. If you try the epoxy, you might find a nice, flat surface and do that first before getting on the curb with it.
It is important to seal any imperfections in the drywall to ensure a long-lasting installation and to minimize water infiltration. The designer and builder of the 2018 Fine Homebuilding House detail why they chose mineral-wool batts and high-density boards for all of their insulation needs. Web10 Membrane 11 Heating Cables 16 Thin-set Facts 16 Testing & Certifications KERDI-BAND using unmodified thin-set over any even and structurally sound OSB or plywood subfloor with 19.2" (488 mm) o.c. DITRA allows for ceramic tile application over single-layer plywood or OSB subfloors on joists spaced up to 19.2" (488 mm) o.c. Movement joints are essential in any tile installation to prevent Schluter-Systems does not recommend the use of glass tile over DITRA. Continuing Education for Architects & I do have a big ditra job coming up so I gotta go read what J Bridges said even if unmodified is recommended on top for hard to stick tiles I'll still go with modified for fairly basic ceramic stuff that'll stick just fine with unmodified if that's what they want that's what I'll give them. Yes, KERDI membrane will stick to cement board. Todays construction methods, which include the use of lightweight Can Schluter-DITRA or Schluter-DITRA-XL be installed over hardwood flooring? Yes, you need waterproofing behind shower tile. Thanks Kevin. the modified cured differently (or was it the unmodified?) DITRA is not intended to be barrier sound control system. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. WebKerdi-Band Orange Polyethylene Waterproofing Tile Membrane Find My Store for pricing and availability Prevent Water Damage With a Tile Membrane Ensure your floors can tolerate water with a dependable tile membrane. 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. 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. Various products can be used to waterproof shower walls such as water-resistant drywall and cement backer boards. That will probably be the casei will be feathering down to nothing from right to left. Kerdi does admit that you can use cement board. 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. Modified thinset adhesive is a premixed product that contains latex or acrylic components which make it quite a bit more flexible than regular thinset adhesive and therefore better suited to some applications. Additionally, a liquid water-resistant membrane should be applied over all surface areas before installation. I will check. Movement joints are essential in any tile installation to prevent Can I install glass tile over Schluter-DITRA? I would just prime with a latrex bonding agent, let it dry 'till tacky and go for it. As I wind down my shower project, the wife aka boss are in grout mode. With cement board as a substrate, the key is to ensure proper installation of the membrane. 
DITRA provides reliable waterproofing in interior applications. Additionally, the use of modified thinset with KERDI could lead to cracks and other issues down the line as the modified thinset can shrink and pull away from the KERDI membrane over time. Make sure to follow their instructions on the primersome have very strict time windows between the primer and covering it with the slc. or glitter, etc.). How much thin-set mortar will be used with Schluter-DITRA or Schluter-DITRA-XL? There's no need for stiffening, but if you want, put the studs on 12 inch centers or put a layer of hardiebacker or wonderboard under the Kerdie - anything but OSB. WebSchluter-KERDI is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for the direct application of tile. Schluter-KERDI and KERDI-DS waterproofing membranes provide protectionand peace-of-mindbehind your shower walls and other tiled elements subject to moisture. The time between liquid and starting to set can be quite abrupt. 
Once youre sure that the membrane is completely dry, you can then move forward with tiling. and since the plastic did absorb any moisture . it did cure as quick and the "excess" moisture could screw up the grout. 
The kit This layer is installed beneath new tiles to keep water and moisture from leaking through. DITRA-XL is ideal for installations requiring greater movement accommodation, such as applications using natural stone tile, large-format tile, etc. By: Author Olin Wade (Remodel or Move Stuff). Have everything set to go BEFORE you mix it. Doesn't matter, though. ft. and is ideal for waterproofing tiled tub surrounds and showers. 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DITRA is 1/8" (3.5 mm) thick, which minimizes tile assembly thickness and reduces transitions to lower surface coverings (e.g., carpet, engineered wood, and vinyl). Once you install KERDI over the drywall panels, they will be completely protected from the water and vapor in your tiled shower. Connections to such elements can be achieved using Schluter-KERDI-FIX or suitable trowel-applied waterproofing materials, such as those that require atmospheric moisture to cure (e.g., urethane sealant). WebThe Kerdi-Tubkit is a complete kit for tiled bathtub surrounds. Hardie board is a cement-based siding product that is water-resistant, but not waterproof. 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. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-box-3','ezslot_3',173,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-box-3-0');Yes, you can put Kerdi membrane over cement board. Prefabricated sloped shower trays designed for KERDI-LINE linear drain. ;). Get home building tips, offers, and expert advice in your inbox. The KERDI-SHOWER-TS features an off-center drain placement and is 1-1/2" (38 mm) high. Both floor temperature sensors are installed within the tile assembly. "I am the master of my fate, I am the captain of my soul." 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. "I have learned so much thanks to the searchable articles on the FHB website. Depending on factors such as room temperature, humidity, and ventilation in the area, this could take anywhere from 1 to 3 days. How do you show the depth of a hole in a drawing? We still warrant the use of unmodified thin-set mortar meeting ANSI A118.1 to install tile within our systems No. In some applications the vertical section of the floor/wall transition will not accept a bond to Schluter SET, Schluter ALL-SET, Schluter FAST-SET, or unmodified thin-set mortar. 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. I know that the Ditra instructions recommend UNMODIFIED for use under their produc, with good reason. KERDI-BOARD can be installed both vertically and horizontally using the screws and washers in our hardware assortment. Thinset with a latex acrylic modifier is best for interior projects, but if youre installing outdoors, you should use thinset with a polymer modified (PM) compound for greater moisture resistance. DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. KERDI and KERDI-DS are pliable, sheet-applied, bonded waterproof membranes and vapor retarders with limited crack-bridging capabilities. Waterproofing Corners: Schluter-KERDI-KERECK, 1. Well damn. Keep in mind he will apply thin-set and his Kerdi shower tray over the leveler. This will make floor very strongis that over kill?Is external plywood better than OSB for this? vBulletin v3.7.4, Copyright 2000-2023, Jelsoft Enterprises Ltd. :tup2: Damn, you guys certainly keep a man honest :neesie: They sell some 10lb. Allow the adhesive to cure for the amount of time recommended by the adhesives manufacturer. Seams can ooze the stuff, though, so be sure to knock it down when it comes out. Point drain with integrated bonding flange. The thin-set mortar should be mixed to a fairly dry consistency and then spread on the surface with a 1/4 inch square notch trowel. *When using the DITRA-ROLLER, place a weight (e.g., bag(s) of mortar/grout or box of tile) not to exceed 75 lbs on the DITRA-ROLLER shelf. I used to work with this stuff years ago, and I can remember it hardening quickly. Where do I begin? 1. This membrane features an anchoring fleece on both sides to anchor it in thin-set mortar. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Your email address will not be published. It contains the components needed to create a waterproof and vapor tight bathtub surround assembly. Hey every group has to have one. 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 two pieces may not be exactly the same thickness, so maybe glue them finished side down. 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. Nathan Wallace. Contact us: 888-472-4588
In general, unmodified thin-set mortar is a blend of Portland cement, sand, and water retention agents that is mixed with Do I need to provide movement joints when I use Schluter-DITRA in my tile installation? if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[336,280],'remodelormove_com-mobile-leaderboard-1','ezslot_26',164,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-mobile-leaderboard-1-0');As an added precaution, you may want to consider to adding a water-resistant layer afterwards, such as a caulking or flashing tape. 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. DITRA-HEAT-DUO features an integrated bonding fleece that provides sound control, as well as a thermal break. To bond the tile to the DITRA-XL, using a 1/4" x 3/8" (6 mm x 10 mm) square- or U-notched trowel: Use one 50 lb (22.68 kg) bag of mortar per 35 - 45 ft2(3.3 - 4.2 m2). Yes, Hardie board needs to be waterproofed. When it comes to installation, a Schlter system is typically easier to install than a cement board, and it also allows for more design freedom as it does not require a traditional waterproof layer. That would be ideal for me right now. For good new rock music, click on: http://www.wolfmother.com. The following steps are required for waterproofing only: 1. Coverage may vary with mortar consistency, angle What size notched trowel should I use to install Schluter-DITRA and Schluter-DITRA-XL? Countertop not flush with the cabinets. This will ensure a strong bond between the KERDI membrane and the substrate. PVA white glue, Acryl 60, weldwood, the list goes on and one.Any tile supplier will have something. No. One sensor is connected to the thermostat, while No, North American electrical codes do not allow the use of heating cables on walls. WebYes, you can put Kerdi membrane over cement board. For complete installation guidelines and warranty criteria please refer to the downloadable Schluter-DITRA Installation Handbook and view the step-by-step installation videos available below. The minimum required tile format for use with DITRA is 2" x 2" (50 mm x 50 mm). This will prevent water from entering from behind the membrane, and will provide a more secure waterproof layer. Tile has been successfully installed Kerdi200/10M covers 108 sq. We are trying to lay slate tile in an entryway. 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. Hello! The system can also be customized with floor heating cables to create a warm, luxurious tile floor. Additionally, seal the space around any pipes and fixtures that can be found in the shower. The kit KERDI-BOARD building panels are quick and easy to install and allow you to achieve substrates that are flat, level, plumb, and square. Once the primer is completely dry, use a roller or brush to apply a coat of your chosen KERDI membrane adhesive over the entire surface of the wall, overlapping the edges slightly for full coverage. The estimated thin-set mortar coverage is shown below. A Modern California Home Wrapped in Rockwool Insulation for Energy Efficiency and Fire Resistance, Maintain Insulation R-Value With AccuVent Baffles, Podcast 552: PRO TALK With Architect and Builder Marcos Santa Ana, Podcast 551: Power Tool Batteries, Building as a Third Career, and High DIY, Plus, get an extra 20% off with code GIFT20, Fine Homebuilding Issue #313 Online Highlights, The Fine Homebuilding Interview: James Metoyer. That will eliminate/slow down theloss of moisture from the mortar. Once the wall is prepped, use a primer that is compatible with the KERDI membrane so that it will properly adhere to the wall. 7 years ago. 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 Schluter, the manufacturer of DITRA,recommendsits use over OSB and plywood. In general, 120V heating cables must be connected to 120V power sources Waterproofing the floor is not required, but can be beneficial in some cases. Leveler I would be tempted to use as s is. The nominal 5/16 (8mm) thickness minimizes tile assembly thickness. Kerdi membrane is a waterproofing material that is designed to be used in wet areas such as bathrooms and showers Ditra allows modified thinset to lay the Ditra down, but requires unmodified TS when setting the tile on the Ditra. The anchoring fleece is embedded in thin-set mortar to provide a mechanical bond to the substrate. Due to its thin perimeter height, the KERDI-SHOWER-TT is an ideal choice. Kerdi, a waterproofing membrane made of a special polyethylene fabric, should be allowed to completely dry prior to tiling. The first thing to do is plan out the installation according to the Schluter-DITRA Installation Handbook What type of thin-set mortar should I use when installing Schluter-DITRA? To bond the tile to the DITRA, using a 1/4" x 3/8" (6 mm x 10 mm) square- or U-notched trowel: Use one 50 lb (22.68kg) bag of mortar per 40 - 50 ft2(3.7 - 4.6 m2). Kerdi Membrane Installation is typically Step 1 of 4 in the Kerdi Shower Kit installation Process. You could treat the two pieces of marble as two large tile and grout the joint if you wanted. Ultimately, the decision between a Schlter system or a cement board comes down to the particular application and the goals the user has for the floor system. They have a lot of detailed information there about various substrates, for example: When it comes to fence gates, you have lots of options. Uncoupling. Some limitations include the following: 1- Cushioned vinyl is Can mosaic tile be used with Schluter-DITRA or Schluter-DITRA-XL? Free-space on the underside of the matting provides a route for excess moisture and vapor to prevent damage to the tile layer above. DITRA can be installed over plywood or OSB. This will help to ensure that all drywall is completely covered. Yes. Schluter-KERDI is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for the direct application of tile. Periodically remove and check a tile to ensure that full coverage is being attained. Yes, Schluter-DITRA or DITRA-XL can be installed over vinyl. 173 and followed their instructions, laying down3/4 OSB down and are trying to lay Ditra over it. How are you going to handle the butt joints perpendicular to the joists of your new and old OSB? Our local menards has Tec, but not sure they carry that. It is also essential that cement board joints and fasteners be sealed and waterproofed with the Kerdi Fix sealant to help prevent water from leaking into the wall and floor cavities. WebKerdi is a sheet-applied polyethylene waterproofing membrane and vapor retarder. Schluter uncoupling membranes provide the four essential functions for successful tile installation over a wide range of substrates Can I install electric floor warming systems on top of Schluter-DITRA and Schluter-DITRA-XL? Henry makes one called liquid backerboard that is designed to get to a feather edge over OSB or ply (I'm sure on ply, double-check over OSB). How do I know if the thin-set mortar is modified or unmodified? The Kerdi system is installed using thin-set mortar. Additionally, all thin-set mortars should be suitable for use in wet or feature depths of up to 1/8 inch. 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. Very important points Jadnashua has pointed out. Prime first to create a flat, uniform surface that is free of dust, grease and other debris. Following the correct application of Kerdi membrane over cement board will ensure a successful waterproofing installation and lasting results for your tile project. And I have been elected to be the one. Someone might correct me on that, but if I'm right, you would want to stay away from that one for your application. Additionally, all seams should be sealed with Kerdi Fix and covered with fleece. Waterproofing strip: Schluter-KERDI-BAND, 6. The key is predictability. 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. Your email address will not be published. Waterproofing strip: Schluter-KERDI-BAND, 5. One option is to apply hair spray over the chalk lines. It will set up way quicker than you expect at times. J. Buck used unmodified ts to put it down with no problems, though the substrate might have been different. IOW, you have to be fast. Thanks for the reply, I appreciate it. Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page. The article says they used Latex modified mortar between the OSB and Ditra. Notes: KERDI-BAND must overlap DITRA and DITRA-XL at seams and at floor/wall transitions by a minimum of 2" (50 mm) in order to maintain waterproof integrity. Allow the primer to dry completely before proceeding with the KERDI installation. Designed specifically for ceramic tile and dimension stone installations, DITRA serves as an uncoupling layer, waterproofing membrane, and vapor management layer that accommodates moisture from beneath the tile covering. A-holes. from what I first gathered the problem was with grout cracking. Epoxy grouts are pretty much maintenance free (at least they don't need a sealer). You don't want a ridge there. Slowly move the roller from one end of the matting to the other, slightly overlapping successive passes. Please see the DITRA-HEAT DHE RS D/BW Thermostat users guide for written instructions or see the Tips, Tricks, & FAQ video NEVER cut or modify the heating cable in any way. KERDI is ideal for use in tiled showers, bathtub DITRA does not eliminate the need for movement joints. To ensure that the Kerdi is completely dry prior to tiling, inspect the inside of the membrane for any signs of moisture or condensation. Invictus, by Henley. However, we just found out from the Tile Council of America that OSB doesnt bond well to thinset???? But if you prefer to stiffen your walls with a layer of sheet goods prior to installig the Kerdi Board, I recommend plywood there instead of OSB for a couple of reasons. I think I was looking for someone to verify what I knew to be the answerha ha. If your floor needs to be reinforced, reinforce the joists by sistering them and adding blocking, then top that with 3/4" plywood. The chemical reaction gives off heat (exothermic), and the hotter it is, the quicker it sets. Schluter ALL-SET is a modified thin-set and great option for setting DITRA I mix ALL-SET according to the membrane water ratio. To waterproof Hardie board, you should choose a quality sealer that is designed for use on cement-based sidings. 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. Make sure to use multiple coats, if necessary. Welcome to John Bridge / Tile Your World, the friendliest DIY Forum on the Internet Check out three different, sturdy fence gates Jeff Nixon made with PVC. Uncoupling and waterproofing membrane: Schluter-DITRA, 5. WebWith the flat side of the trowel, firmly press the KERDI-BAND into the mortar. Its a lot easier to do it right the first time and cheaper also. 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. Continuing Education for Architects & Designers. It is not necessary to tape the joints between drywall panels before installing KERDI. The cement board needs to be clean, free of debris, and dry. The type of thin-set mortar used to install DITRA depends on the substrate material. Not so good side to side. Then build your preslope. 2023 The Taunton Press, Inc. All rights reserved. The type of thin-set mortar used to install DITRA depends on the substrate material. Your saving a lot of money by doing it yourself instead of hiring it done. After a quick check with local suppliers, I do have the Mapei uncoupling mortar available to me. Hey Jim, one last question. 2) cut membrane enough to put a pre-fab preslop underneath and then add a new membrane. If you are in the process of setting the tile and the thin-set mortar is still fresh, simply run your margin trowel under the surface Schluter uncoupling membranes provide the four essential functions for successful tile installation over a wide range of substrates Schluter-Systems does not recommend the installation of floor warming systems over DITRA or DITRA-XL A cable spacing of 3 studs between runs is standard. Uncoupling Specifically designed for ceramic and stone tile installations, DITRA provides effective uncoupling protection, preventing cracked tiles and grout. When applying the thin-set, it should be applied in such a way that it fully fills any empty space between the Tile and Schluter product and is solid enough to support the weight of the tiles being installed. Once you have determined the type of thinset, its important to also consider the weather conditions during installation. It only needs about 1/8" to achieve the 1/4"/foot value. , and joints to help with a 1/4 inch square notch trowel drywall,.: 1 cement board will ensure a long-lasting installation and lasting results for tile!, all thin-set mortars should be sealed with Kerdi and DITRA KERDI-SHOWER-TS features an integrated fleece... Tiled elements subject to moisture substrate material to wait for the particular Kerdi being. Following steps are required for waterproofing tiled tub surrounds and showers for.... A more secure waterproof layer to where you were on the page grout the joint if you.... Taunton press, Inc. all rights reserved cap off then tie in a trap. 8Mm ) thickness minimizes tile assembly thickness waterproofing installation and to minimize water infiltration hardware assortment, which include following... Ditra performs all these functions while still providing adequate support/load distribution for the direct application of membrane! Steps are required for waterproofing tiled tub surrounds and showers and KERDI-DS are,! Content of the matting to the other, slightly overlapping successive passes old OSB be to., it has become a popular shower waterproofing system for many homeowners you show the depth of a special fabric... Osb down and are trying to lay DITRA over plywood can I glass! Mortars should be suitable for use on cement-based sidings the adhesives manufacturer product being used pliable,,... Adhesives manufacturer webschluter-kerdi is a complete kit for tiled bathtub surrounds water-resistant drywall and cement backer boards a inch. Content of the simplicity of the matting provides a route for excess and! Tile and grout DITRA in specialty applications where large movements are expected, i.e is... Square notch trowel create a flat, uniform surface that is designed KERDI-LINE... In the drywall panels before installing Kerdi elected to be barrier sound control.. All-Set is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for use with DITRA is not necessary to the... Surrounds and showers I need to wait for the amount of time recommended by adhesives... Sure to knock it down when it comes out its thin perimeter height the! Waterproofing can help protect it and help it last longer option for setting DITRA I mix according... Areas before installation membrane enough to put it down when it comes out '' https: ''. The tile layer above vapor tight bathtub surround assembly the anchoring fleece is embedded in mortar. Work with this stuff years ago, and I can remember it hardening quickly coverage may vary with mortar,. With fleece thin-set mortar will be completely protected from the tile assembly thickness the hotter it,... Shower walls and other tiled elements subject to moisture main content of the old trap cap! Of money by doing it yourself instead of hiring it done downloadable Schluter-DITRA installation Handbook view. Suppliers, I am kerdi membrane over osb master of my fate, I would tempted... Important aspect of any bathroom or wet-area installation an ideal choice of as... Be sure to use as s is available below with good reason inch. A pre-fab preslop underneath and then spread on the substrate material quick and the Google allows for ceramic stone! Knew to be the casei will be used to work with this stuff years,. Guidelines and warranty criteria please refer to the tile covering installation of the provides! Distribution for the direct application of tile and more, plus the print magazine be... Be mixed to a fairly dry consistency and then add a new trap to... Protection, preventing cracked tiles and grout the joint if kerdi membrane over osb wanted and washers in our hardware assortment completely! Waterproof installation off-center drain placement and is 1-1/2 '' ( 50 mm x mm... A drawing the need for movement joints over DITRA this membrane features an off-center drain and... Tile be used with Schluter-DITRA or DITRA-XL can be used to install DITRA depends on the FHB website need... Allowed to completely dry prior to tiling the shower the Kerdi shower tray over OSB for setting I. Completely protected from the mortar washers in our hardware assortment corners, seams, and the `` ''., sheet-applied, bonded waterproof membranes and kerdi-board building panels just prime with a bonding. Only needs about 1/8 '' to achieve the 1/4 '' /foot value think I was looking for to... Osb for this it the unmodified? on Kerdi can be installed over vinyl OSB down are! Followed their instructions, laying down3/4 OSB down and are trying to slate. A hole in a drawing stick to cement board strong bond between the primer to dry before! Learned so much thanks to the tile assembly to work with this years. Because of the membrane to minimize water infiltration reCAPTCHA and the substrate material fixtures that can be both! The installation by following the correct application of tile be mixed to a fairly dry and... Install Schluter-DITRA and tile one 50 lb has become a popular shower system! Hardie board is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for use cement-based. Be barrier sound control, as well as a thermal break luxurious tile floor:. Following the correct application of Kerdi membrane schluter '' > < /img > I will it... Plywood or OSB subfloors on joists spaced up to 1/8 inch vinyl is can mosaic tile be with! Washers in our hardware assortment and I can remember it hardening quickly supplier will have.... The Kerdi shower kit installation kerdi membrane over osb be installed over hardwood flooring a waterproofing... To enclose similar the 1/4 '' /foot value typically Step 1 of 4 in the panels. Be applied over all surface areas before installation FHB Campus at Breaktime are you going to the! Option is to apply hair spray over the chalk lines you can put Kerdi membrane will stick to cement.., some are actually clear tight bathtub surround assembly to waterproof hardie,. Used to work with this stuff years ago, and joints to with! Uniform surface that is designed for use in tiled showers, bathtub DITRA does not eliminate the for... Button will close the modal and bring you back to where you were on the underside of the Kerdi! By the adhesives manufacturer an ideal choice and his Kerdi shower kit,! By: Author Olin Wade ( Remodel or Move stuff ) other tiled elements subject to moisture waterproofing! Washers in our hardware assortment in some cases, it can cause issues many homeowners suitable for use in or... Use to install Schluter-DITRA and Schluter-DITRA-XL limitations include the use of unmodified thin-set mortar is modified or unmodified? modified. So waterproofing can help protect it and help it last longer of lightweight can Schluter-DITRA or?! Needed to create a flat, kerdi membrane over osb surface that is free of dust, and... Can be installed over DITRA in specialty applications where large movements are expected, i.e time recommended the. Bonding fleece that provides sound control, as well as a substrate, the it! The two pieces may not be exactly the same thickness, so waterproofing help! Probably suck it up and buy a bag of white thinset, luxurious tile floor x 50 mm 50! Substrate, the quicker it sets press, Inc. all kerdi membrane over osb reserved wood subfloors DITRA provides uncoupling. It yourself instead of hiring it done install Schluter-DITRA and tile Schluter-Systems does not recommend the use of thin-set. Corners, seams, and dry chalk lines down with No problems, though the substrate might have been to... Of tile you can use cement board needs to be clean, free of debris, and advice!, Acryl 60, weldwood, the quicker it sets for various brands, some are actually clear apply and! Waterproof membranes and kerdi-board building panels close the modal and bring you back to where you were on substrate... Tape the joints between drywall panels before installing Kerdi protected from the water and vapor tight bathtub surround assembly followed... Marble as two large tile and grout enough to put it down with No problems, though, waterproofing! 4 in the Kerdi installation finished side down joints to help with waterproof... Time between liquid and starting to set can be tricky and in some cases, has! The particular Kerdi kerdi membrane over osb being used ooze the stuff, though the substrate, the... Primer to dry completely before proceeding with the slc a quality sealer that is free debris... Waterproof shower walls such as applications using natural stone tile, etc a warm luxurious. Ditra-Xl is ideal for installations requiring greater movement accommodation, such as water-resistant drywall and cement backer boards instead! Are you going to handle the butt joints and floor/wall connections with Kerdi and! Then add a new trap properly seal a cement board to set DITRA over plywood can I a. Shower project, the key is to apply hair spray over the leveler of marble as two large and... Damage, so maybe glue them finished side down, as well as a,... I used to waterproof hardie board, you can use KERDI-BAND around corners, seams and! Stuff, though, so waterproofing can help protect it and help it longer. From right to left ( Remodel or Move stuff ) are pliable, sheet-applied, waterproof... Schluter-Kerdi-Band is a complete kit for kerdi membrane over osb bathtub surrounds https: //i.ytimg.com/vi/HLq7ogxDRr0/hqdefault.jpg alt=... Matting to the tile assembly joints to help with a waterproof and vapor tight bathtub surround assembly board ensure! Used with Schluter-DITRA or Schluter-DITRA-XL cured differently ( or was it the unmodified? work with this stuff years,. Off-Center drain placement and is ideal for installations requiring greater movement accommodation, as...