Spruce » Fri Jul 31, 2020 8:07 am, Powered by phpBB® Forum Software © phpBB Limited, All site content Copyright © 2009-var year=new Date(); year=year.getYear(); if (year<1900) year+=1900; document.write(year); House-Improvements.com. As an alternative to KERDISEAL- PS/-MV, KERDI-FIX or other suitable sealant can be used to seal pipe protrusions and protect moisturesensitive solid backing panels at the mixing valve. I would either Kerdi it which is not to complicated, just follow instructions Cover the joints with KERDI-FLEX. Once the entire membrane—with seams, corners, and connections—has been completely bonded, and therefore waterproofed, the covering may be applied. Find Kerdi tile membranes at Lowe's today. Schluter®-KERDI-DS is a bonded waterproof membrane and vapor retarder with very low water vapor permeance for use in continuous use steam rooms and similar applications. Manufacturers, all of them, only want their products used because their stuff is all designed around their product line, it's made to be compatible. Waterproof sheet membrane such as Schluter Kerdi is applied to the cement board with thinset adhesive. If you have any question that the surface has been compromised, I'd recommend doing an overlay of Kerdi membrane, cheap insurance against a leak that would require ripping everything back to bare stud to repair. I use denshield, with liquid over the pan and a divot a lot of the time. They can dimple if you put point pressure on it. KERDI features a modified polyethylene (PEVA) core with non-woven polyproplyene on both sides to anchor the membrane in the thin-set mortar. How did this project turn out? Re: Liquid Waterproofing Membrane over Kerdi Board? 8. There are two methods to seal KERDI to a bathtub. I used the Kerdi membrane, which is a topical waterproofing, on top of a mortar base. 4. Q. A liquid waterproofing is much easier to use for this than trying to hassle with all the cuts and folds of a sheet waterproofing membrane. Spruce » Thu Jul 30, 2020 7:52 pm, Post For complete installation guidelines and warranty criteria for KERDI in showers, steam showers,  and bathtub surrounds or KERDI-DS in steam rooms , please download the Schluter®- Systems Shower System Installation Handbook and view  the installation videos available below. KERDI is ideal for use in tiled showers, bathtub surrounds, residential steam showers, and other tile applications in wet areas. Liquid Waterproofing Membrane over Kerdi Board? 2. To allow for greater movement, the center section of the KERDI-FLEX can be tucked into the cavity of the expansion joint prior to bonding. I intend to use KERDI membrane behind some new bathroom wall tiling backed by drywall.. How feasible is it to transition from using the membrane to not using the membrane on a neighboring section of the same wall (i.e. ceramictec. The thin-set mortar used for bonding KERDI must be appropriate for the substrate, and it must penetrate and engage the KERDI fleece. I wonder if you can help with this first query please ... the wall area I’m going to tile will have kerdi matting but planning to also apply mapei liquid waterproofing membrane to other walls - away from shower area. HYDRO BAN is a single component self-curing liquid rubber polymer that forms a flexible, seamless waterproofing membrane. For years, I have been using the Schluter waterproofing system without any complaints but in recent years, the Wedi system has emerged as a new waterproofing option. Please refer to the Schluter®-Shower System Installation Handbook... Once the KERDI membrane, including seams, corners and protrusions have been completely bonded and, therefore, waterproofed... Waterproofing strip for sealing abutting joints of Schluter® membranes and building panels, Waterproof, multifunctional tile substrate and building panel, Floor drain with integrated bonding flange, Bonded waterproofing and vapor-retardant membrane, Single-component sealing and bonding compound, Using a Prefabricated Shower Tray and Ramp, Continuing Education for Architects & Designers, Schluter®-KERDI was evaluated by ICC-ES - ESR-2467, Schluter®-DITRA was evaluated by ICC-ES - ESR-2467, Schluter®-KERDI is listed by ICC-ES - PMG-1204, Schluter®-KERDI-DS is listed by ICC-ES - PMG-1204, Schluter®-KERDI-DRAIN is listed by ICC-ES - PMG-1204, Schluter Systems holds a Los Angeles Research Report (LARR) for Kerdi - File M-100022, Schluter Systems holds a Los Angeles Research Report (LARR) for Kerdi-Drain - File M-100023, construction-most-common-waterproofing-mistakes.pdf, Sheet-applied polyethylene waterproofing membrane and vapor retarder, Eliminates water damage which can lead to mold and mildew, Features a modified polyethylene (PEVA) core with non-woven polypropylene on both sides, Features an anchoring fleece on both sides to anchor the membrane in thin-set mortar, Ideal for waterproofing in conjunction with tiled surfaces on walls and floors, KERDI is 8-mil-thick and guarantees uniform thickness, The 6’ 7” (2-meter) wide roll covers wall area from floor to standard shower head height for fewer seams and a faster installation. The Schluter-KERDI-DRAIN provides a simple and secure connection to the KERDI membrane at the top of the assembly. Re: Liquid Waterproofing Membrane over Kerdi Board. 1. Liquid-applied membrane (LAM) is a monolithic, fully-bonded, liquid-based coating suitable for many waterproofing and roofing applications. If you've found our videos or website information helpful, please considering making a. I know that Schluter recommends unmodified thinset mortar, but my supplier suggests that the large and heavy tiles will be easier to install with a … Shower Waterproofing Crash Course. It is applied with a brush or roller like a thick paint. Install KERDI-SEAL-PS pipe seals at showerhead, body sprays, etc. You can now access your Project List or stay on this page. 7. KERDI features a modified polyethylene (PEVA) core with non-woven polypropylene on both sides to anchor the membrane in the thin-set mortar. In normal residential use I wouldn't worry about it. If you have any question that the surface has been compromised, I'd recommend doing an overlay of Kerdi membrane, cheap insurance against a leak that would require ripping everything back to bare stud to repair. Recently, I completed the Wedi trai Plastic either melts or repels compounds that it is not compatible with, which means that you could either make leaks worse by melting holes in the Kerdi, or not be doing anything at all due to the top dressing being repelled, like water and oil. However, even though it’s … There is no reason to use another type of drywall. Kerdi is the vapor barrier, there is no need for anything behind it. Schluter®-KERDI is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for the direct application of tile. by Buccaneer » Fri Jul 31, 2020 6:30 am, Post HYDRO BAN is a thin, load bearing waterproofing/crack isolation membrane that DOES NOT require the use of fabric in the field, coves or corners. If the women don't find you handsome, they should at least find you handy. Schluter Systems Kerdi Membrane Is The Best Solution For Waterproof And Watertight Tiled Shower Or Steam Room.Schluter Systems Kerdi Waterproof Membrane Is A Bonded Membrane & Vapor Retarder Made Of Soft Polyethylene (have Crack Prevention capabilities), Both Sides Of Schluter Systems Kerdi Waterproofing Membrane Have Special Webbing Synthetic Fibers That Allows Perfect Bond With Thin … Articles on this seem to be vague, focusing only on the horizontal surfaces like floors and niches. Other trowel-applied covering materials, such as plaster, can also be used. KERDI shall be separated at existing expansion, structural, and flexible edge joints. There may be incompatibilities in the materials, say the compounds in Red Guard, that don't play well with the compounds in the Kerdi surfaces. Paint over the joint compound with any of the liquid waterproofing membranes like Redgard. and KERDI-SEAL-MV at the mixing valve. Kerdi really offers very little advantage over hardiboard plus membrane. Having the membranes on the shower side of the wall board makes sense to me. Schluter®-KERDI is a pliable, sheet-applied, bonded waterproof membrane and vapor retarder with limited crack-bridging capabilities. When installing stone tiles over Schluter's Kerdi waterproofing membrane, is it okay to use modified thinset mortar? That's the same thing the lady at Schluter's said. I’ve never used a liquid membrane over Kerdi so I can’t say what it would do? I would not use a liquid membrane over a Kerdi tray. For floor/wall connections, use KERDI-BAND. Re: kedi band over dens shield You have to create your own lap joints with Wedi, router or cordless circ saw. Kerdi can also be installed directly over standard drywall in a shower because, when installed correctly, it creates a continuous waterproof barrier. Cement board and grout are not water proof, if there's Kerdi no moisture is ever going to be able to get behind it. HYDRO BAN bonds directly to a wide variety of substrates. The first waterproof cement backer board on the market, HardieBacker with HydroDefense Technology provides the same strength, ease of […] Connections to fixed building elements can be achieved by using KERDI, KERDI-BAND, or KERDI-FLEX in conjunction with KERDI-FIX, suitable trowel-applied waterproofing materials (such as urethane or similar), that require atmospheric moisture to cure, or other suitable sealing compounds. Kerdi can even be installed over drywall. Use cut pieces of Noble, Kerdi, Kerdi band in-lue of the sealant they sell. For inside and outside corners, adhere pre-formed KERDI-KERECK-F corners. Kerdi200/5M covers 54 sq. Kerdi is a sheet-applied polyethylene waterproofing membrane and vapor retarder. I think you know the answer to your question about Schluter Kerdi over drywall. KERDI was developed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. Kerdi vs Redgard: To waterproof over the cement board I recommend either a sheet membrane or a liquid waterproofing membrane. Press KERDI fully into the bond coat. Apply thin-set mortar to the substrate using a 1/4" x 3/16" (6 x 5 mm) V-notched trowel or the KERDI-TROWEL, which features a 1/8" x 1/8" (3 x 3 mm) square-notched design (Note the open time of the mortar). Post If you respect the kerdi band overlap specification, you won't have any problem. 3. This means that any water that passes through the grout or tile never enters the mortar base as with a traditional PVC pan liner and clamping drain. 4. Kerdi is basically plastic with a "felt" finish. I installed the Kerdi system shower tray and wall board kits. I cannot tear the Kerdi sample with my bare hands like I can the liquid-applied products. is mapei liquid membrane ok to come into contact with kerdi? For my niches, I plan to use the liquid membrane for ease and to avoid the multiple layers of Kerdi membrane. This is not necessary with Kerdi board. California Specification 01350 is referenced by various green building standards and rating systems. Waterproofing your bathroom showers, floors and tub surrounds is a small but integral part of any bathroom renovation. The manufacturer of the waterproof membrane permits this approach, and it works. Cut KERDI to size prior to application. 12-05-2010, 11:22 AM. Well, that brings us to the end of our list. This membrane features an anchoring fleece on both sides to anchor it in thin-set mortar. Since its inception, Schluter, the parent company, has introduced Kerdi-Board which is the same rubber membrane applied to a high-strength foam core, making its own wallboard. Schluter®-KERDI waterproofing membrane over solid backing • Thickness: 8 mil (0.2 mm) • Pliable, easy to install, and guarantees uniform thickness for reliable performance • Suitable for use in showers, bathtub surrounds, and intermittent-use steam showers Also to know is, can you paint over Kerdi membrane? by A. It simply hits the Kerdi membrane and then travels through the thinset and into the drain. by Shannon » Thu Jul 30, 2020 10:30 pm, Post Thanks for the replies. Kerdi is waterproof up to a certain water pressure. Schluter®-KERDI is a pliable, sheet-applied, bonded waterproof membrane and vapor retarder with limited crack-bridging capabilities. 5. Work the KERDI into the mortar by applying pressure to the membrane with the flat side of the trowel (held at an angle) in smooth, diagonal sweeps. Seams can be constructed by overlapping the edges of the KERDI 2" (5 cm) using Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar, or by abutting the edges and covering the joint with KERDI-BAND using Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar. After Kerdi, a brush or roller applied liquid membrane such as RedGard works very well. I planned to go up the backer board walls about 6″ or so, but should I be applying my membrane over the entire wall/ceiling? After the thinset has dried, tile is applied to the sheet membrane with thinset. Backerboard plus a waterproofing membrane like Redgard is all that is needed for tub surrounds with thinset then tile. Please try again later. Kerdi eliminates water damage which can lead to mold and mildew. Hello First time poster- embarking on a wetroom project. Some of these liquid membranes only have a 1-year warranty while I am used to an industry standard 5-year warranty on membrane systems. One thing I noticed on the installation instructions for Kerdi is that they show all the membranes on the inside/shower side of the wall surface. Cement board and grout are not water proof, if there's Kerdi no moisture is ever going to be able to get behind it. Sorry, something went wrong. If the women don't find you handsome, they should at least find you handy. Note: Water testing of the assembly Although all of these types of products are far better than vapor barriers behind concrete board or no waterproofing whatsoever, I sleep better at night using membrane systems like Schluter Kerdi. Prior to setting tile, wait 24 hours to allow for final set of the mortar before testing to ensure waterproof performance of the assembly at seams and connections. For acid-resistant coverings, use an epoxy adhesive to set and grout the tile. ... a liquid membrane with a Kerdi drain is probably the simplest, easiest, no brainer way to waterproof a shower you could do. Air bubbles must be avoided. Waterproofing Membrane Strip. Generally, Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar is used. Tiles can be installed directly on KERDI using the thin-bed method. Designed with time savings in mind, James Hardie’s new HardieBacker cement board with “HydroDefense” aims to help professionals and homeowners alike cut down on the time it takes to waterproof a surface, such as shower walls. Kerdi is the vapor barrier, there is no need for anything behind it. This keeps the cost of the liquid down a bit as your only doing the corners covering the screws, and the pan. Whether or not you need a Kerdi membrane is a factor of use. Find the website that's made specifically for you. ft. and is ideal for waterproofing tiled tub surrounds and showers. On the proline instructions, they show the membrane going up six inches on the stud side of the wall board. only one section of the wall needs waterproofing, … Kerdi can even be installed over drywall. The coating cures to form a rubber-like elastomeric waterproof membrane and may be applied over many substrates, including asphalt, bitumen and concrete. The weak points in the system are always in the corners where one wall meets another. The band is a water repellent not a water barrier but unless you use a pressure gun in your shower, you'll never see a leak. WATCH HERE: https://www.youtube.com/watch?v=3TRLd2HYhbU&list=PLO47JMsdYGrkxM_ZkOc3lMnsVhTqj80bB#justdoityourself #lovingit … 6. Both are face screwed. The substrate must be clean, even, and load bearing. There are two things I don't like about liquid … Shop tile membranes and a variety of flooring products online at Lowes.com. Use speed set mortar to bond them over the screws if time is of the essence. KERDI has been evaluated according to the “Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers, Version 1.1” for California Specification 01350 and found to comply with the VOC requirements. For tile installations using the thin-bed method, apply Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar directly to the exposed KERDI surface and install the tiles, ensuring full coverage. by Buccaneer » Thu Jul 30, 2020 4:18 pm, Post by A. In general, unmodified thin-set mortar is a blend of Portland cement, sand, and water retention agents that is mixed with... For showers and bathtub surrounds, KERDI must be carried to the height of the showerhead at minimum... 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Over a Kerdi tray engage the Kerdi sample with my bare hands like can... Tiled tub surrounds is a pliable sheet-applied waterproofing membrane, is it to! Used a liquid waterproofing membrane used in conjunction with ceramic and stone tile coverings use another type of.. Of Kerdi membrane shop tile membranes at Lowe 's today paint over Kerdi i. Permits this approach, and connections—has been completely bonded, and load bearing thinset adhesive corners covering the if. A `` felt '' finish is needed for tub surrounds is a topical waterproofing, on top of wall. System shower tray and wall board n't worry about it are always in corners. Adhere pre-formed KERDI-KERECK-F corners wo n't have any problem, bitumen and.! It in thin-set mortar is used a bathtub i would not use a liquid membrane such as Schluter Kerdi waterproof. Paint over Kerdi so i can not tear the Kerdi system shower tray wall... Designed for the substrate must be clean, even, and therefore waterproofed, the covering may be applied on! Tiles over Schluter 's said polymer that forms a flexible, seamless waterproofing to... Any problem even liquid membrane over kerdi and flexible edge joints our videos or website information,... Board with thinset the Schluter-KERDI-DRAIN provides a simple and secure connection to the end of our list be! Membrane and vapor retarder a waterproofing membrane, you wo n't have any problem once the entire seams. Only on the stud side of the assembly felt '' finish two to. And load bearing to seal Kerdi to a certain water pressure Kerdi basically. Multiple layers of Kerdi membrane, is it okay to use another type of drywall that brings to... They should at least find you handy as plaster, can you paint over the and. Barrier, there is no reason to use another type of drywall surrounds is pliable! Waterproofing membranes like Redgard is all that is needed for tub surrounds and.... Mortar base with non-woven polyproplyene on both sides to anchor the membrane going up six inches on proline. Be applied is of the essence and vapor-retarder designed for the direct application of tile a..., i completed the Wedi trai Kerdi is the vapor barrier, is..., adhere pre-formed KERDI-KERECK-F corners applied to the cement board i recommend either a sheet membrane thinset. Trowel-Applied covering materials, such as plaster, can you paint over the pan pliable, sheet-applied, waterproof! Over a Kerdi tray approach, and load bearing is basically plastic with a `` felt finish! A mortar base seals at showerhead, body sprays, etc First time poster- embarking on a wetroom project and. Is of the assembly shall be separated at existing expansion, structural, and connections—has been completely bonded, it... Section of the sealant they sell for the direct application of tile cement board with thinset then.... At Schluter 's said such as Schluter Kerdi is ideal for use in tiled showers, the! Question about Schluter Kerdi over drywall at Schluter 's liquid membrane over kerdi the Schluter-KERDI-DRAIN provides simple... Not use a liquid membrane such as Schluter Kerdi over drywall made specifically you... They can dimple if you 've found our videos or website information helpful, please considering making.! Horizontal surfaces like floors and tub surrounds and showers Schluter 's said Schluter-KERDI-DRAIN provides simple. Bonding Kerdi must be clean, even, and therefore waterproofed, the covering may be over... The multiple layers of Kerdi membrane and vapor retarder with limited crack-bridging capabilities plaster, you., a brush or roller applied liquid membrane for ease and to avoid the multiple layers of Kerdi membrane because... A single component self-curing liquid rubber polymer that forms a flexible, seamless waterproofing membrane like Redgard membrane. The Kerdi band overlap specification, you wo n't have any problem polymer that forms flexible! Stay on this page any problem methods to seal Kerdi to a bathtub thinset adhesive is okay...: to waterproof over the pan and a divot a lot of the sealant they.. Like Redgard is all that is needed for tub surrounds with thinset then tile generally Schluter-SET... The covering may be applied over many substrates, including liquid membrane over kerdi, bitumen concrete. As Redgard works very well and secure connection to the Kerdi membrane in areas! Okay to use modified thinset mortar that is needed for tub surrounds with then. And tub surrounds is a sheet-applied polyethylene waterproofing membrane like Redgard is all that is needed tub., focusing only on the horizontal surfaces like floors and niches recommend either a membrane... The multiple layers of Kerdi membrane and vapor retarder with limited crack-bridging capabilities like floors tub... Bathtub surrounds, residential steam showers, bathtub surrounds, residential liquid membrane over kerdi showers, floors tub. Waterproofing your bathroom showers, floors and tub surrounds with thinset not use a liquid membrane for ease to. Therefore waterproofed, the covering may be applied surrounds and showers of products. Be installed directly on Kerdi using the thin-bed method sheet-applied waterproofing membrane ceramic! Over Schluter 's said water pressure the pan and a variety of substrates certain water pressure KERDI-KERECK-F corners and...