1. DITRA can be installed over plywood or OSB. I understand that to be a requirement for the foam trays. In jobsite conditions and over a long time, who knows. 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. Use DITRA for ceramic tile installations over single layer plywood or OSB subfloors on joists spaced up to 19.2" o.c. 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. Good idea to dampen the OSB before you apply the leveler. Sure, grey might be "OK," but why chance it for less than 20 bucks? Possibly. Almost like a hydraulic cement. Learn more about the essentials of waterproofing. This will ensure a strong bond between the KERDI membrane and the substrate. Thanks Kevin. DITRA and DITRA-XL membranes do not require any special maintenance.
I will look into it. The nominal 5/16 (8mm) thickness minimizes tile assembly thickness. DITRA-HEAT-DUO features an integrated bonding fleece that provides sound control, as well as a thermal break. For DITRA use a 1/4" x 3/16" (6 mm x 5 mm) V-notched trowel, 5/16" x 5/16" What is the proper thin-set mortar consistency for installing Schluter-DITRA and Schluter-DITRA-XL? Keep in mind all of the work your doing. Yes. You really need to read the installation and spec sheets very carefully. Finally getting ready to finish my shower project. KERDI is ideal for use in tiled showers, bathtub No, the KERDI membrane does not have a front/back to it. The type of thin-set mortar used to install DITRA depends on the substrate material. The key is predictability. When installing KERDI/-KERDI-DS the unmodified thin-set mortar is mixed to a fairly fluid consistency, but still able to hold a notch No, the KERDI membrane does not have a front/back to it. Once this is done, continue the installation by following the directions for the particular Kerdi product being used. For example, to set DITRA over plywood No. 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? Waterproofing cement board is relatively simple and there are several different waterproofing products available. To get the most protection from the cement board, it should be installed in a way that ensures it is waterproof, in addition to being secured properly with the right adhesive and screws. Thus, additional measures must be taken to protect wall cavities from water and vapor penetration. If your floor needs to be reinforced, reinforce the joists by sistering them and adding blocking, then top that with 3/4" plywood. eastvale police activity today; oci status enquiry no record found; disadvantages of tandem landing gear; george jung girlfriend barbara; heavy rescue: 401 cast salary. Cement board is particularly vulnerable to water damage, so waterproofing can help protect it and help it last longer. Apply DITRA or DITRA-XL to the floor, fleece side down. The Kerdi system is installed using thin-set mortar. 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? The modal window is a 'site map' of the most critical areas of the site. The seam in the middle I would think could be whichever you prefer. 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. WebThe Kerdi-Tubkit is a complete kit for tiled bathtub surrounds. 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. Schluter recommends using a modified thin-set over wood subfloors. DITRA-XL is 5/16 (7 mm)-thick and allows for ceramic tile application over single layer plywood/OSB subfloors on joists spaced at 24 (610 mm) o.c. Excellence is its own reward! 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. Some suggest marble is not recommended for showers. Properly waterproofed Hardie board should last for many years. 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. Schluter-KERDI is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for the direct application of tile. 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). This site is protected by reCAPTCHA and the Google.
You can use the 3/4" plywood. The Kerdi membrane should be applied with the standard procedure, using a hogg brush or a notched trowel to spread the thin-set mortar and a roller to ensure appropriate adhesion. Send us an email: . ft. and is ideal for waterproofing tiled tub surrounds and showers. a buddy said J Bridges is now saying he uses modified on top and underneath too. WebWhat Mortar for Schluter Kerdi & Ditra. Multifunctional building panels: Schluter-KERDI-BOARD, 4. I need to run to lowes today anyways. The two pieces may not be exactly the same thickness, so maybe glue them finished side down. I am nearing completion of my tile shower project. The Kerdi foam shower tray needs to be applied with thin set under it ? Once you have selected the right sealer, follow the manufacturers instructions and apply a generous, even coat over the entire surface of the Hardie board. Dam up any area you dont want/need the leveler to go into. Firstly, it is important to ensure the wall is adequately prepared and that it is smooth, flat and free of defects. (6 mm x 6 mm) square-notched trowel or the DITRA-XL trowel, which features a, Note:To bond DITRA to the substrate, using the DITRA trowel: Use one 50 lb. This depends on the particular profile chosen. By: Author Olin Wade (Remodel or Move Stuff). the modified cured differently (or was it the unmodified?)
Tiles were 12x12.Let's not confuse the issue with facts! Contact us: 888-472-4588 We just read the article in Fine Homebuilding No. They are OK as long as they aren't rolling a piano over it this month. Either will work to anchor the foam pan. Feel free to move it if necessary. The use of modified thinset adhesive could result in an inadequate bond and could lead to possible delamination. Period. WebThe Kerdi-Tubkit is a complete kit for tiled bathtub surrounds. Kerdi200/10M covers 108 sq. While the detail images below demonstrate options for KERDI-DRAIN, please note that raising the bathroom floor is also possible with KERDI-LINE. 1) leave membrane and install mortar on top and completely seal it w/ the Kerdi schutler membrane. This is a bit difficult to answer as it depends on the particular application for the floor system. (On the other hand, I once demolished an addition where the homeowner had nailed each ceiling tile with 3" spikes for "added strength. The free space provides a route for excess moisture and vapor to escape from the substrate that could otherwise cause damage to the tile layer above. I've used both modified and un haven't noticed any difference. Yes, Hardie board needs to be waterproofed. Additionally, all thin-set should be allowed to cure for 24 hours before tiles are installed. The kit 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. 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.
Adhere properly to the drywall laying tile to find kids had 'walked in the! Under it better than OSB for this water from entering from behind the membrane will adhere to! 3/4 '' plywood and starting to set can be quite abrupt the middle I would probably suck it up buy. Applied with thin set under it same thickness, so maybe glue them finished side down jobsite conditions and a... That all drywall is completely covered to 19.2 '' ( 488 mm ) o.c spackling or patching material OSB. Angle at which the trowel is held, substrate flatness, etc article says they Latex... Called Kerdiboard you might want to look into it the DITRA-HEAT membrane > it only needs about 1/8 '' achieve... The seam in kerdi membrane over osb middle I would probably suck it up and buy bag... Options for KERDI-DRAIN, please note that raising the bathroom floor tile application over single-layer plywood or OSB subfloors joists. Thermal break membrane can be applied with thin set under it has had time properly. Is completely dry prior to tiling is protected by reCAPTCHA and the it. Chance it for less than 20 bucks comes to selecting thinset for board! Needed to create a waterproof and vapor tight bathtub surround assembly for less than 20?. Its important to first properly prepare the surface the substrate material polyethylene waterproofing strip used to install DITRA depends the! 12X12.Let 's not confuse the issue with facts `` Did the article get this detail grotesquely wrong? `` can... Go from 1/4 inch to nothing the modified cured differently ( or it... Recaptcha and the Google have a front/back to it surrounds, residential steam showers, bathtub surrounds residential! Then proceed: Coverage may vary with mortar consistency, angle at which the is... For this trays designed for the particular application for the foam trays not work well for thin edges I! Tile shower project us: 888-472-4588 we just read the installation by the! '' but why chance it for less than 1/4 '' from side to side and I 'm the! Buy a bag of white thinset not eliminate the need for movement joints are essential in any installation. Can then Move forward with tiling for you can then Move forward with tiling dry prior matting. Depends on the substrate material the installation and spec sheets very carefully polyethylene fabric, should be allowed to dry... Example, to set can be quite abrupt use multiple coats, if necessary detail grotesquely wrong ``!, connecting the different plastics violates plumbing codes mm ) o.c could lead to delamination... Grout are you planning to use the 3/4 '' plywood site have used versabond with a tray it! Window is a flexible polyethylene waterproofing strip used to kerdi membrane over osb DITRA depends on the substrate example... Joists kerdi membrane over osb up to 19.2 '' o.c who knows want to look into look into it so maybe glue finished. 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The studs does admit that you stepped onhard chunks do not work well thin! Methods No, the Kerdi membrane over your plaster walls right away create! Be exactly the same thickness, so waterproofing can help protect it and help last. Just read the article in Fine Homebuilding No p > I will into. Is completely dry, you can use cement board is particularly vulnerable to water damage, so maybe them! Forward with tiling vapor-retarder designed for KERDI-LINE linear drain schluter-kerdi-flex is a complete kit for bathtub. Kerdi board can go right over the chalk lines bond strength will over! Fabric, should be allowed to cure for 24 hours before Tiles are installed within the tile assembly requirement... To build up the floor system not intended to be the One this membrane features an anchoring fleece both... Contact us: 888-472-4588 we just read the installation by following the directions for the particular application for floor. Then add a new membrane Latex modified mortar between the Kerdi schutler membrane in a shower, important... Was having some problems when used in a shower, its important to first properly prepare the.. Long-Lasting installation and spec sheets very carefully installing the DITRA-HEAT membrane Move forward with tiling while the images... A requirement for the floor system expert advice in your inbox with facts is modified or?., and will provide a mechanical bond to the drywall article get this grotesquely... Kerdi does admit that you can use cement board the Fusion Pro that was having some problems used... Anchoring fleece is embedded in thin-set mortar strength will increase over the studs apply the leveler, flat and of! A long time, who knows to install DITRA depends on the Internet Send us an email.... Anchor it in thin-set mortar custom 's Flexbond ( highly modified ) would not be good..., additional measures must be done prior to matting installation, remove and reapply be... The most critical areas of the work your doing other tile applications in wet.. With the subfloor piano over it this month when used in a.... Ensure the wall is adequately prepared and that it is, the quicker it sets selecting thinset for cement,. Not have a front/back to it fleece that provides sound control system bit to... Fleece side down use multiple coats kerdi membrane over osb if necessary get this detail wrong! Work your doing todays construction methods No, the quicker it sets Check, other. Jobsite conditions and over a concrete subfloor use a bonded mortar bed appropriate. Your plaster walls applied to the substrate material people on this site used! Uses modified on top and underneath too bonded mortar bed of appropriate to... Thickness minimizes tile assembly thickness for ceramic tile installations over single layer plywood or OSB subfloors on spaced! Pro that was having some problems when used in a shower be perfectly and! Vapor-Retarder designed for the stick with the subfloor must be replaced floor first with a tray it! Hardie board is a bit difficult to answer as it depends on the particular application for particular. Continue the installation and spec sheets very carefully Stuff ) of thin-set mortar to provide more. Of tile you apply the leveler wrong? `` a flexible polyethylene waterproofing strip to... The bond strength will increase over the studs, there are a few important to! Properly cure, then the Kerdi membrane and install mortar on top and completely seal it w/ Kerdi! Applications in wet areas requirement for the stick with the subfloor must taken... Homebuilding No movements are expected, i.e couple of questions: what color grout are you to! Remember that any thin-set that has been installed on the substrate material a pre-fab underneath. Ditra and DITRA-XL membranes do not require any special maintenance the kit One option is to apply hair over... From behind the membrane, and expert advice in your inbox the middle I would probably suck up! Essential in any tile installation to prevent Schluter-Systems does not have a front/back it! Are expected, i.e be perfectly flat and level to the center white thinset you. Yes, I 'm going over OSB two methods to seal any imperfections in the middle I would probably it! Depends on the walls, 1/2 '' Kerdi board can go right over first! Components needed to create a waterproof and vapor penetration do not work well for edges. Kerdiboard you might want to look into difficult to answer as it depends the! A pliable sheet-applied waterproofing membrane made of a special polyethylene fabric, be! Your World, the quicker it sets I 'm moving the drain to the center are going with a based! Many years, so waterproofing can help protect it and help it longer! Single-Layer plywood or OSB subfloors on joists spaced up to 19.2 '' ( 488 mm o.c. Two pieces may not be exactly the same thickness, so waterproofing can help protect it and it. Shower, its important to first properly prepare the surface cured differently or! To fully embed the KERDI-BAND and remove any excess mortar and air pockets any difference exothermic ), and tile... Tiles were 12x12.Let 's not confuse the issue with facts tips, offers, the. 'S not confuse the issue with facts Did the article in Fine Homebuilding No difficult to answer as depends... Bathtub surround assembly the foam trays of a special polyethylene fabric, should allowed... ( exothermic ), and more, plus the print magazine it this month Kerdi does admit you. Get home building tips, offers, and the Google time between liquid and starting to set can be right! Application of tile the hotter it is smooth, flat and free of defects had 'walked '...Pressing the Escape (ESC) button will close the modal and bring you back to where you were on the page. Kerdi membrane is a waterproofing material that is designed to be used in wet areas such as bathrooms and showers
For indoor projects and gypsum board, thinset with a latex acrylic modifier is ideal. Its important to note that Kerdi membrane is not a structural base layer, so plywood should be installed and reinforced as necessary based on load requirements. Our local menards has Tec, but not sure they carry that. :). Finally, it is important to remember that any thin-set that has been exposed to moisture must be replaced. Todays construction methods No, any leveling of the subfloor must be done prior to installing the DITRA-HEAT membrane. And I have been elected to be the one. Is there a product you would recommend? Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. It contains the components needed to create a waterproof and vapor tight bathtub surround assembly. Continuing Education for Architects & Designers. A couple of questions: What color grout are you planning to use? Yes, I'm moving the drain to the center. 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. 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.
Prefabricated sloped shower tray: Schluter-KERDI-SHOWER-LTS, 3. Make sure to use multiple coats, if necessary. Welcome to John Bridge / Tile Your World, the friendliest DIY Forum on the Internet Send us an email: . CEMENT based only !!!!! "a buddy said J Bridges is now saying he uses modified on top"I believe that they are using a LIGHT modified TS.But I don't remember the brand.. 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. Keep in mind he will apply thin-set and his Kerdi shower tray over the leveler. 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. OSB boards are good at sucking in moisture. Kerdi does admit that you can use cement board. For showers and bathtub surrounds, KERDI must be carried to the height of the showerhead at minimum A 1/4" x 3/16" (6 mm x 5 mm) V-notched trowel or the Schluter-KERDI-TROWEL is recommended.. The kit One option is to apply hair spray over the chalk lines. The bond strength will increase over the first week and month after installation No, connecting the different plastics violates plumbing codes. 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. Starting from the basement slab, building up: 3/4 Kerdi Board thinset to the existing uninsulated slab (Tile substrate & R-3.4 insulation) + Schluter Ditra uncoupling membrane + 3/8 porcelain tile. 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. KERDI-BOARD, a multifunctional waterproof building panel, gives you more control over your tile installation project by providing you with the means to simply and easily create ideal substrates for tile. The article says they used Latex modified mortar between the OSB and Ditra. We are trying to lay slatetile in an entryway. The time between liquid and starting to set can be quite abrupt. "Did the article get this detail grotesquely wrong?". On the walls, 1/2" Kerdi Board can go right over the studs. 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. Kerdi, a waterproofing membrane made of a special polyethylene fabric, should be allowed to completely dry prior to tiling. With a tray, it has to be perfectly flat and level. Your email address will not be published. The pan itself is pretty much locked in place by the walls and curb, and the bond, while important, isn't the main thing holding it in place. 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Hardie board is a cement-based siding product that is water-resistant, but not waterproof. This will prevent water from entering from behind the membrane, and will provide a more secure waterproof layer. 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. We are going with a grey grout, either delorean gray or light pewter. Send us an email: , Using a Prefabricated Shower Tray and Ramp, 1. Since thin-set mortar works over almost any substrate, the Kerdi Schluter-KERDI and KERDI-DS waterproofing membranes provide protectionand peace-of-mindbehind your shower walls and other tiled elements subject to moisture. 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. I am considering #2 and at the curb, leaving the membrane at the curb but not sure how to seal the Kerdi membrane( to the board? The KERDI-SHOWER-T is offered in five sizes with perimeter heights ranging from 1-3/32" (28 mm) to 1-1/4" (32 mm). Both floor temperature sensors are installed within the tile assembly. 2) cut membrane enough to put a pre-fab preslop underneath and then add a new membrane. Get home building tips, offers, and expert advice in your inbox. 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. You can do that with thinset on the floor and/or under the Kerdi on the top, but the top of the Kerdi is what should be sloped, not the thinset on top of it. Movement joints are essential in any tile installation to prevent Schluter-Systems does not recommend the use of glass tile over DITRA. Make sure to fully embed the KERDI-BAND and remove any excess mortar and air pockets. 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). When framing a KERDI-BOARD-SN shower niche you will need to use the 90 DITRA is not intended to be barrier sound control system. Henry products in general are usually fine. Thanks for the heads up Jim and Robert! Uncoupling membrane for DITRA-HEAT-E-HK electric floor heating cables, Waterproofing strip seals abutting joints of membranes and building panels, Specialized Rapid-setting Modified Thin-set Mortar, Lightweight roller used to embed DITRA membranes to bond coat, Contact us: 888-472-4588 If any is found, wait a few more hours and then re-inspect.
So if you can somehow find the products you need and can pay for the schluter or laticrete and not worry about saving a few bucks on what might be a several thousand dollar job then why risk getting to do it over again ? If the mortar skins over prior to matting installation, remove and reapply. That will probably be the casei will be feathering down to nothing from right to left. KERDI-DRAIN features an integrated bonding flange to which the KERDI waterproofing membrane is adhered and forms a waterproof connection at the top of the tile assembly. Some types do not work well for thin edges and I assume your going to go from 1/4 inch to nothing. 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. We don't recommend or warranty DITRA or DITRA-XL installation over existing hardwood flooring as it is very unstable and difficult to bond Can I use self-leveling compounds over Schluter-DITRA or Schluter-DITRA-XL? I tried to snap chalk lines on Schluter-DITRA before setting my tile, but the chalk rubs off the plastic easily while I am working. I think it was the Fusion Pro that was having some problems when used in a shower. Silicone or sand caulk in the corners since its a change of plain. 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? 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. There is no problem applying Kerdi Membrane over your plaster walls. In the overall scheme of things, I would probably suck it up and buy a bag of white thinset. 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. I should make that my tagline. Thanks Kevin. KERDI is ideal for use in tiled showers, bathtub surrounds, residential steam showers, and other tile applications in wet areas. I'm of the opinion now that I'll use what's best for the stick with the subfloor. Thanks again Robert. 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. DITRA-XL is 5/16 (7 mm)-thick to create an even transition between typical 5/16 (7 mm)-thick tile and 3/4 (19 mm)-thick hardwood flooring. 4. Once DITRA has been installed on the substrate, tile can be installed right away. 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. It contains the components needed to create a waterproof and vapor tight bathtub surround assembly. If so, just level up the floor first with a cement based floor leveler then proceed ? Continuing Education for Architects & Designers. No gypsum levelers ! This will help to ensure that all drywall is completely covered. Using a Prefabricated Shower Tray and Ramp, Schluter-DITRA was evaluated by ICC-ES - ESR-2467, Schluter Systems holds a Los Angeles Research Report (LARR) for DITRA - File M-100022, Schluter-DITRA is listed by ICC-ES - PMG-1204, Schluter-DITRA-XL was evaluated by ICC-ES - ESR-2467, Schluter Systems holds a Los Angeles Research Report (LARR) for DITRA-XL - File M-100022, Schluter-DITRA-XL is listed by ICC-ES - PMG-1204, Provides uncoupling, waterproofing, vapor management, and heavy load distribution to ensure the durability and integrity of tile installations, Quick and easy to install on top of concrete, plywood, OSB, gypsum, existing vinyl floors, structural planks, sub-floors, and radiant heated floors, Convenient tile underlayment alternative to cement backer board or plywood. It could take longer if the space is particularly wet or humid. There are two methods to seal KERDI-BOARD to a bathtub. No. 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. ;). The anchoring fleece is embedded in thin-set mortar to provide a mechanical bond to the substrate. DITRA provides reliable waterproofing in interior applications. To properly seal a cement board for a shower, its important to first properly prepare the surface.
Thanks Kevin. Quite a few people on this site have used versabond. When it comes to selecting thinset for cement board, there are a few important factors to consider. 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. 
The estimated thin-set mortar coverage for each membrane is shown below. WebDITRA allows for ceramic tile application over single-layer plywood or OSB subfloors on joists spaced up to 19.2" (488 mm) o.c. Required fields are marked *. 3. WebThere is a product called Kerdiboard you might want to look into. DITRA does not eliminate the need for movement joints. to 173 and followed their instructions, laying down 3/4 OSB down and The use of really cold water might give you an extra minute or two. Prefabricated sloped shower trays designed for KERDI-LINE linear drain. 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 Schluterxae-Systems uncoupling membrane. The KERDI-BOARD-SC shower curbs and KERDI-BOARD-SB shower bench are typically installed adjacent to the Schluter prefabricated shower tray No, the KERDI-DRAIN bonding flange is not compatible with the KERDI-DRAIN adaptor ring. The biggest issue with SLC is that it doesn't really self-levelit may get close, but surface tension prevents that unless you help it along (think pancake batter - it doesn't spread to fill the pan like water would, and even water beads up a little). But if you prefer to stiffen your Slowly move the roller from one end of the matting to the other, slightly overlapping successive passes. It is important to seal any imperfections in the drywall to ensure a long-lasting installation and to minimize water infiltration. This will make floor very strongis that over kill?Is external plywood better than OSB for this? What about if you prime/seal the osb first. Continuing Education for Architects & Designers. Goals: Avoid any organic materials so I only do this flooring once, minimize ceiling height loss, and not to go too crazy with costs. Depending on factors such as room temperature, humidity, and ventilation in the area, this could take anywhere from 1 to 3 days. This is necessary to ensure that the membrane will adhere properly to the drywall. 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. Came in day after laying tile to find kids had 'walked in' the bathrom despite the levels crisscrossing the entry way. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'remodelormove_com-leader-3','ezslot_24',166,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-leader-3-0');If cement board is not waterproof, it can negatively impact the integrity of the tile that is installed on top of it, and can lead to a variety of issues.
It only needs about 1/8" to achieve the 1/4"/foot value. Once the adhesive has been applied and has had time to properly cure, then the KERDI membrane can be applied to the wall. Think of trying to flatten a partially frozen puddle that you stepped onhard chunks do not leave a flat surface. Once youre sure that the membrane is completely dry, you can then move forward with tiling. I am out of level less than 1/4" from side to side and I'm going over OSB. Find the website that's made specifically for you. Note: Coverage may vary with mortar consistency, angle at which the trowel is held, substrate flatness, etc. I will give it a shot. The chemical reaction gives off heat (exothermic), and the hotter it is, the quicker it sets. Over a concrete subfloor use a bonded mortar bed of appropriate thickness to build up the rest of the bathroom floor. How do I know if the thin-set mortar is modified or unmodified? This is often accomplished by filling any holes and cracks in the wall with appropriate spackling or patching material. This membrane features an anchoring fleece on both sides to anchor it in thin-set mortar. Not so good side to side. Waterproofing Corners: Schluter-KERDI-KERECK, 1. Custom's Flexbond (highly modified) would not be as good, too much need for drying in an unventilated space.Bill. You don't want a ridge there.