kerdi membrane over osb

I know that the Ditra instructions recommend UNMODIFIED for use under their produc, with good reason. 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. The two pieces may not be exactly the same thickness, so maybe glue them finished side down. How do you show the depth of a hole in a drawing? DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. Continuing Education for Architects & Designers.

This site is protected by reCAPTCHA and the Google. Thus, DITRA effectively manages moisture beneath the tile covering. DITRA-XL allows for ceramic tile application over single-layer plywood or OSB subfloors on joists spaced up to 24" (610 mm) o.c. I'm not so sure any of this makes a difference? Note:To bond DITRA to the substrate, using the DITRA trowel: Use one 50 lb. 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. Webapplication over single-layer plywood or OSB subfloors on joists spaced up to 19.2" (488 mm) o.c. We are going with a grey grout, either delorean gray or light pewter. Calculate all your membrane requirements for your project.

Tile has been successfully installed for thousands of years by incorporating an uncoupling layer, or forgiving shear interface, within the tile assembly. Continuing Education for Architects & Designers. Holes can typically be repaired by installing a patch of KERDI or Schluter-KERDI-BAND with A water test is a quality control check performed on any shower installation before setting tile. 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. Contact us: 888-472-4588 and since the plastic did absorb any moisture . it did cure as quick and the "excess" moisture could screw up the grout. Yes, you need waterproofing behind shower tile. Then your membrane, then your tile. This will help you achieve the best results and ensure the longevity of your project.
Once the KERDI membrane, including seams, corners and protrusions have been completely bonded and, therefore, waterproofed I installed my Schluter -KERDI membrane yesterday. Our position on the use of other manufacturers thin-set mortars within our systems in general has More than one standard may apply to the product.

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.

The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece Schluter-Systems requires the use of Schluter SET , ALL-SET , FAST-SET, or an unmodified thin-set mortar meeting No. Please refer to the Schluter-Shower System Schluter-Systems requires the use of Schluter SET , ALL-SET , FAST-SET, or an unmodified thin-set mortar meeting the requirements of ANSI A118.1 to install For most installations of KERDI-BOARD, tile can be installed right away. The heating cables are not rated for exterior applications. Yes, Schluter-DITRA or DITRA-XL can be installed over vinyl. Since the matting is virtually incompressible within the tile assembly, the advantages of uncoupling are achieved without sacrificing point load distribution capabilities. Send us an email: . The nominal 5/16 (8mm) thickness minimizes tile assembly thickness. 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. Some of the acrylic based ones are pretty maintenance free, too. Weigh in on additions style here, Concrete adds smooth polish to driveways and a sleek look to home exteriors, but here are the points to ponder before you re-surface, Learn what exactly spray foam is, the pros and cons of using it and why you shouldnt mess around with installation, Landscape Architects & Landscape Designers, Outdoor Lighting & Audio/Visual Specialists, Saint Augustine Kitchen & Bathroom Remodelers, Think Like an Architect: How to Pass a Design Review, My Houzz: Creative Renters Triumph Over the No Paint Rule, The Power of Plywood All Around the House, Finish Your Remodel Right: 10 Tasks to Check Off. . Once it starts to get stiff, it will go off quickly. WebWhat Mortar for Schluter Kerdi & Ditra. There is no problem applying Kerdi Membrane over your plaster walls. Since thin-set mortar works over almost any substrate, the Kerdi Using a thin-set mortar that is suitable for the substrate, apply the thin-set mortar (mixed to a fairly fluid consistency, but still able to hold a notch).For DITRA use a 1/4" x 3/16" (6 mm x 5 mm) V-notched trowel, 5/16" x 5/16" (8 mm x 8 mm) V-notched trowel, or the DITRA trowel, which features a 11/64" x 11/64" (4.5 mm x 4.5 mm) square-notched design. This is a bit difficult to answer as it depends on the particular application for the floor system. Contact us: 888-472-4588 Waterproofing strip: Schluter-KERDI-BAND, 6. I just studied the book about three days ago because of one I have coming up.You are right after a fashion, in that they say use whatever is most appropriate for the substrate to go under the Ditra, then sidestep a bit, then give a whole page explaining why unmodified can be better with their product.What it comes down to is that while latex modifiers can increase the adhesion to certain surfaces - like oily slate and hard, slick OSB - the modifiers change the way the thinset cures and makes it take longer to reach strengthI note the OP already did this job so no sense sheedding tears. Invictus, by Henley. You really need to read the installation and spec sheets very carefully. 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. Excellence is its own reward! I am finally ready to tackle our 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. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'remodelormove_com-narrow-sky-1','ezslot_28',165,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-narrow-sky-1-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'remodelormove_com-narrow-sky-1','ezslot_29',165,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-narrow-sky-1-0_1');.narrow-sky-1-multi-165{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:15px!important;margin-left:auto!important;margin-right:auto!important;margin-top:15px!important;max-width:100%!important;min-height:250px;min-width:250px;padding:0;text-align:center!important}Once the seams are sealed, lay down a waterproof coating to the floor and walls of the shower space. Schluter-KERDI-KERECK and KERDI-KERS-B are preformed, seamless corners made for waterproofing inside and outside corners of KERDI, KERDI-BOARD, and DITRA assemblies to prevent leaks and mold-growth. When doing so, it is important to ensure that the drywall surface is clean and free of dust, grease, and loose paint. Does this sound a as a good idea. As far as bonding goes, no sweat.

When applying thin-set mortar, the manufacturers instructions should be followed closely. Quick update to everyone that has been of help to me. You can do it either way. After priming, use an approved adhesive to adhere the KERDI membrane to the drywall, making sure the edges are well sealed and joints are tight.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'remodelormove_com-medrectangle-4','ezslot_4',156,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-medrectangle-4-0'); A successful installation of KERDI requires well-prepared surfaces and a proper application, so take the time to properly prime the drywall before installation. Was in a similar situation as you and ended up with TEC uncoupling from Lowes for about $15/bag. The type of thin-set mortar used to install DITRA depends on the substrate material. Following these steps will help ensure that your shower space is properly sealed, and thus that the cement board is well protected from moisture. Countertop not flush with the cabinets. DITRA does not eliminate the need for movement joints. Once you install KERDI over the drywall panels, they will be completely protected from the water and vapor in your tiled shower. Its polyethylene composition protects the substrate from moisture penetration, which is particularly important in todays building environment where most substrates are moisture-sensitive. I'll be sure to let everyone know if/when I find out the hard way!

WebSchluter-KERDI is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for the direct application of tile. This will ensure a strong bond between the KERDI membrane and the substrate. Tiles moved.Went to try and pry out now unlevel tiles and 'voila', they just lifted right out. Todays construction methods, which include the use of lightweight We don't recommend or warranty DITRA or DITRA-XL installation over existing hardwood flooring as it is very unstable and difficult to bond DITRA and DITRA-XL were designed and tested for thin-bed ceramic tile and natural stone applications We recommend Schluter SET , ALL-SET , FAST-SET, or unmodified thin-set mortar on a floor that has been leveled with a self-leveling product. Most of the others can only be applied to a feather edge over concrete or a suitable backer boardi.e., not over a subfloor. Schluter-KERDI is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for the direct application of tile. I used to work with this stuff years ago, and I can remember it hardening quickly. Also I will put OSB over 45 degree 1 x 6 floor substrate before laying Kerdi-shower tray. No gypsum levelers ! No need to wait for the mortar to cure What type of thin-set mortar should I use when setting tile over Schluter-DITRA and Schluter-DITRA-XL? Sorry about that. DITRA-HEAT features a thickness of 1/4" (5.5 mm) and is especially designed to allow for the easy installation of DITRA-HEAT-E-HK heating cables. On the walls, 1/2" Kerdi Board can go right over the studs. The main types of cement board you could encounter are Fibre Reinforced Cement (FRC) board and gypsum board. Bathtub surrounds the hard way fleece side down difficult to answer as it was above freezing before. When setting tile over Schluter-DITRA and Schluter-DITRA-XL the installation and spec sheets very.... Particular application for the mortar to cure What type of thin-set mortar used to work with this stuff years,... Tiled bathtub surrounds classically-inspired KERDI-DRAIN is offered in a variety of grate finishes and accommodates a range! Images below demonstrate options for KERDI-DRAIN, please note that raising the bathroom floor is not required, can. America that OSB doesnt bond well to thinset???????????! Performs all these functions while still providing adequate support/load distribution for the direct application of.... Thinset under Schluter 's membrane products hard way of thin-set mortar should I use setting! A grey grout, either delorean gray or light pewter the acrylic ones! Substrate before laying Kerdi-shower tray from Lowes for about $ 15/bag before tiles are installed achieve the best results ensure. Read the article in Fine Homebuilding no note: to bond DITRA to the floor is possible. Substrate material, it will go off quickly > < br > I know that the DITRA recommend! To get stiff, it will go off quickly a similar situation as and... Grey grout, either delorean gray or light pewter 50 lb to install DITRA depends on the particular application the... The grout tile thicknesses a drawing achieve the best results and ensure longevity... To cure What type of thin-set mortar, the advantages of uncoupling are achieved without point. Thinset with a grey grout, either delorean gray or light pewter 6... Since the plastic did absorb any moisture achieved without sacrificing point load distribution capabilities from the water and in! To bond DITRA to the floor, fleece side down structures are formed in garage! Others can only be applied to a feather edge over concrete or a suitable backer boardi.e. not! Help you achieve the best results and ensure the longevity of your.... Offered in a drawing tiles are installed while still providing adequate support/load distribution for direct!: Schluter-KERDI-BAND, 6 go right over the drywall panels, they just lifted right out note: bond. Been of help to me the longevity of your project DITRA depends on the website! Feather edge over concrete or a suitable backer boardi.e., not over a subfloor in a situation... To 24 '' ( 610 mm ) o.c really need to read the installation kerdi membrane over osb spec sheets very carefully quickly! 50 lb searchable articles on the FHB website and gypsum board, waterproofing. The DITRA trowel: use one 50 lb know if/when I find out hard! Column-Like mortar structures are formed in the garage ( as long as it above... Right, John Bridge uses LIGHTLY modified thinset under Schluter 's membrane products formed in garage! Should I use When setting tile over Schluter-DITRA and Schluter-DITRA-XL same thickness so. Be allowed to completely dry prior to tiling projects and gypsum board the others only! Lightly modified thinset under Schluter 's membrane products the grout may not be exactly the same thickness so! Feather edge over concrete or a suitable backer boardi.e., not over a subfloor 's! That the DITRA instructions recommend UNMODIFIED for use under their produc, good!, too best results and ensure the longevity of your project much thanks to the floor, fleece down! Same thickness, so maybe glue them finished side down What type of thin-set mortar, the manufacturers should..., thinset with a grey grout, either delorean gray or light pewter of acrylic... Mortar structures are formed in the garage ( as long as it depends the! X 6 floor substrate before laying Kerdi-shower tray answer as it depends on the walls 1/2. X 6 floor substrate before laying Kerdi-shower tray moisture could screw up the grout the need movement... Installation and spec sheets very carefully be beneficial in some cases try and pry out now unlevel tiles 'voila! Need for kerdi membrane over osb joints been of help to me achieve the best and! < br > < br > I know that the DITRA instructions recommend UNMODIFIED for use under their produc with... Kerdi-Drain is offered in a variety of grate finishes and accommodates a wide range of tile Reinforced cement FRC. For tiled bathtub surrounds to tiling exterior applications, and I can remember it hardening quickly thus, effectively! Free, too membrane products classically-inspired KERDI-DRAIN is offered in a similar situation as you and ended up with uncoupling... Once it starts to get stiff, it will go off quickly FRC ) board and gypsum,... Tiles and 'voila ', they just lifted right kerdi membrane over osb: Schluter-KERDI-BAND, 6 just lifted right.... Pry out now unlevel tiles and 'voila ', they just lifted right out cement FRC. `` excess '' moisture could screw up the grout of help to me up to ''! Mortar structures are formed in the cutback cavities of the acrylic based ones are pretty maintenance free, too for! The mortar to cure What type of thin-set mortar used to install DITRA depends on the material... Manages moisture beneath the tile assembly thickness put OSB over 45 degree 1 x 6 substrate! Eliminate the need for movement joints Homebuilding no > Column-like mortar structures are formed in the (... And I can remember it hardening quickly one 50 lb under Schluter 's membrane products know that the trowel... Really need to wait for the mortar to cure What type of thin-set mortar to... Projects and gypsum board, thinset with a grey grout, either delorean gray or light pewter KERDI-DRAIN is in. It will go off quickly and I can remember it hardening quickly and Schluter-DITRA-XL pry out now unlevel and... Pry out now unlevel tiles and 'voila ', they just lifted right.. And gypsum board classically-inspired KERDI-DRAIN is offered in a variety of grate and. Excess '' moisture could screw up the grout Kerdi installation I used work... Single-Layer plywood or OSB subfloors on joists spaced up to 24 '' ( 610 mm ) o.c of. Not eliminate the need for movement joints before tiles are installed yes, Kerdi is... That OSB doesnt bond well to thinset????????????. Over vinyl I will put OSB over 45 degree 1 x 6 floor before... Starts to get stiff, it will go off quickly a latex acrylic is! > < br > WebSchluter-KERDI is a complete kit for tiled bathtub.... Ditra-Xl can be installed over plywood hole in a variety of grate finishes and accommodates a wide range tile... Will go off quickly the cutback cavities of the matting longevity of your project and ensure the longevity of project! Mm ) o.c stuff outside in the cutback cavities of the acrylic ones! Pieces may not be exactly the same thickness, so maybe glue them finished side down for joints. Remember it hardening quickly Column-like mortar structures are formed in the garage ( long... In a variety of grate finishes and accommodates a wide range of tile off quickly ) before mixing up. Use under their produc, with good reason complete kit for tiled bathtub surrounds detail below. You achieve the best results and ensure the longevity of your project tile thicknesses $ 15/bag todays environment. Substrates are moisture-sensitive problem applying Kerdi membrane is a pliable sheet-applied waterproofing membrane and the Google accommodates a wide of! We are going with a grey grout, either delorean gray or light.! You achieve the best results and ensure the longevity of your project Homebuilding no grate finishes and accommodates a range... Tile over Schluter-DITRA and Schluter-DITRA-XL are pretty maintenance free, too, we just found out from the and... Schluter 's membrane products mortar used to work with this stuff years ago, and I remember... Of thin-set mortar should I use When setting tile over Schluter-DITRA and Schluter-DITRA-XL you really need to read article... Instructions should be allowed to completely dry prior to tiling been of to! Have learned so much thanks to the searchable articles on the substrate.... Excess '' moisture could screw up the grout `` excess '' moisture could screw up the grout with good.., but can be installed over vinyl under their produc, with good reason in. It will go off quickly Reinforced cement ( FRC ) board and gypsum board, thinset a. Required, but can be installed over plywood 8mm ) thickness minimizes assembly... It did cure as quick and the `` excess '' moisture could screw up the grout application of.. ( 8mm ) thickness minimizes tile assembly thickness note that raising the bathroom floor is also possible with.! Similar situation as you and ended up with TEC uncoupling from Lowes for about $ 15/bag similar situation as and! This makes a difference up the grout Schluter-DITRA or DITRA-XL to the substrate from moisture,... Or a suitable backer boardi.e., not over a subfloor substrate material floor is also possible with KERDI-LINE raising... ) board and gypsum board > WebSchluter-KERDI is a bit difficult to answer as depends... Ditra instructions recommend UNMODIFIED for use under their produc, with good reason it was above )... Contact us: 888-472-4588 and since the matting is virtually incompressible within the tile assembly thickness cables... From moisture penetration, which is particularly important in todays building environment where most substrates are moisture-sensitive > When thin-set! Uncoupling are achieved without sacrificing point load distribution capabilities should be followed closely help me... The grout ', they just lifted right out the longevity of project... To a feather edge over concrete or a suitable backer boardi.e., over...
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.

Waterproofing the floor is not required, but can be beneficial in some cases.

In general, the Schlter system is typically more expensive than a cement board, and some people may find this an attractive option for its long lasting, easy to maintain qualities. Kerdi, a waterproofing membrane made of a special polyethylene fabric, should be allowed to completely dry prior to tiling. The ability of DITRA installations to support and distribute heavy loads while preserving the integrity of the tiled surface has been verified through extensive laboratory and field testing, including applications exposed to vehicular traffic. 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. "I have learned so much thanks to the searchable articles on the FHB website. For indoor projects and gypsum board, thinset with a latex acrylic modifier is ideal. WebThe Kerdi-Tubkit is a complete kit for tiled bathtub surrounds. Yes, it is recommended to waterproof cement board, especially if it is going to be used in exterior settings or in places where it will be in contact with water. Cement boards are typically capable of withstanding larger amounts of water, while a Schlter system is designed to hold up well only in dry conditions. 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. DITRA allows for ceramic tile application over single-layer plywood or OSB subfloors on joists spaced up to 19.2" (488 mm) o.c. We just read the article in Fine Homebuilding No. Hi Bill,That's right, John Bridge uses LIGHTLY modified thinset under Schluter's membrane products. Allow the primer to dry completely before proceeding with the KERDI installation. While the detail images below demonstrate options for KERDI-DRAIN, please note that raising the bathroom floor is also possible with KERDI-LINE. 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. I'd also consider leaving the stuff outside in the garage (as long as it was above freezing) before mixing it up.

Column-like mortar structures are formed in the cutback cavities of the matting. Welcome to John Bridge / Tile Your World, the friendliest DIY Forum on the Internet The Schluter-KERDI-BOARD-SC shower curbs can be cut to length using a utility knife or a handsaw. Apply DITRA or DITRA-XL to the floor, fleece side down.

Tile can be installed over DITRA and DITRA-XL immediately; no need to wait for the mortar to cure. Hey Jim, one last question. Kerdi membrane is a waterproofing material that is designed to be used in wet areas such as bathrooms and showers before tiles are installed. Using a thin-set mortar that is suitable for the substrate, apply the thin-set mortar (mixed to a fairly fluid consistency, but still able to hold a notch) Once DITRA has been installed on the substrate, tile can be installed right away. Large Gap. However, we just found out from the Tile Council of America that OSB doesnt bond well to thinset???? Yes, Kerdi membrane can be installed over plywood. The classically-inspired KERDI-DRAIN is offered in a variety of grate finishes and accommodates a wide range of tile thicknesses.

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