ceramictec. 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. by Buccaneer » Fri Jul 31, 2020 6:30 am, Post This is not necessary with Kerdi board. Use speed set mortar to bond them over the screws if time is of the essence. 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. 12-05-2010, 11:22 AM. Install KERDI-SEAL-PS pipe seals at showerhead, body sprays, etc. 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. Liquid-applied membrane (LAM) is a monolithic, fully-bonded, liquid-based coating suitable for many waterproofing and roofing applications. Shower Waterproofing Crash Course. Kerdi vs Redgard: To waterproof over the cement board I recommend either a sheet membrane or a liquid waterproofing membrane. 6. The thin-set mortar used for bonding KERDI must be appropriate for the substrate, and it must penetrate and engage the KERDI fleece. KERDI shall be separated at existing expansion, structural, and flexible edge joints. Kerdi eliminates water damage which can lead to mold and mildew. For my niches, I plan to use the liquid membrane for ease and to avoid the multiple layers of Kerdi membrane. 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? 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... A 1/4" x 3/16" (6 mm x 5 mm) V-notched trowel or the Schluter™-KERDI-TROWEL is recommended.. When you start using other brands of products and mixing them together, nobody knows what you'll get because the products were not designed to go together. HYDRO BAN is a single component self-curing liquid rubber polymer that forms a flexible, seamless waterproofing membrane. For floor/wall connections, use KERDI-BAND. Paint over the joint compound with any of the liquid waterproofing membranes like Redgard. The substrate must be clean, even, and load bearing. Air bubbles must be avoided. Kerdi is a sheet-applied polyethylene waterproofing membrane and vapor retarder. Articles on this seem to be vague, focusing only on the horizontal surfaces like floors and niches. 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. Whether or not you need a Kerdi membrane is a factor of use. Cement board and grout are not water proof, if there's Kerdi no moisture is ever going to be able to get behind it. I would either Kerdi it which is not to complicated, just follow instructions How did this project turn out? Recently, I completed the Wedi trai 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. HYDRO BAN bonds directly to a wide variety of substrates. This keeps the cost of the liquid down a bit as your only doing the corners covering the screws, and the pan. 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. Find Kerdi tile membranes at Lowe's today. 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. 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. KERDI features a modified polyethylene (PEVA) core with non-woven polyproplyene on both sides to anchor the membrane in the thin-set mortar. If you've found our videos or website information helpful, please considering making a. Re: Liquid Waterproofing Membrane over Kerdi Board? I installed the Kerdi system shower tray and wall board kits. 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. Cover the joints with KERDI-FLEX. 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. 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. 7. 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. Also to know is, can you paint over Kerdi membrane? WATCH HERE: https://www.youtube.com/watch?v=3TRLd2HYhbU&list=PLO47JMsdYGrkxM_ZkOc3lMnsVhTqj80bB#justdoityourself #lovingit … In normal residential use I wouldn't worry about it. ft. and is ideal for waterproofing tiled tub surrounds and showers. Tiles can be installed directly on KERDI using the thin-bed method. When installing stone tiles over Schluter's Kerdi waterproofing membrane, is it okay to use modified thinset mortar? Schluter®-KERDI is a pliable sheet-applied waterproofing membrane and vapor-retarder designed for the direct application of tile. Spruce » Thu Jul 30, 2020 7:52 pm, Post 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 … Waterproof sheet membrane such as Schluter Kerdi is applied to the cement board with thinset adhesive. Apply thin-set mortar to the substrate using a 1/4" x 3/16" (6 x 5 mm) V-notched trowel or the KERDI-TROWEL, which features a 1/8" x 1/8" (3 x 3 mm) square-notched design (Note the open time of the mortar). Thanks for the replies. is mapei liquid membrane ok to come into contact with kerdi? The weak points in the system are always in the corners where one wall meets another. Cement board and grout are not water proof, if there's Kerdi no moisture is ever going to be able to get behind it. 8. You can now access your Project List or stay on this page. Schluter®-KERDI is a pliable, sheet-applied, bonded waterproof membrane and vapor retarder with limited crack-bridging capabilities. and KERDI-SEAL-MV at the mixing valve. 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. Re: Liquid Waterproofing Membrane over Kerdi Board. 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. Kerdi is the vapor barrier, there is no need for anything behind it. There is no reason to use another type of drywall. California Specification 01350 is referenced by various green building standards and rating systems. 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. However, even though it’s … On the proline instructions, they show the membrane going up six inches on the stud side of the wall board. Q. Liquid Waterproofing Membrane over Kerdi Board? The coating cures to form a rubber-like elastomeric waterproof membrane and may be applied over many substrates, including asphalt, bitumen and concrete. KERDI features a modified polyethylene (PEVA) core with non-woven polypropylene on both sides to anchor the membrane in the thin-set mortar. It is applied with a brush or roller like a thick paint. After the thinset has dried, tile is applied to the sheet membrane with thinset. KERDI is ideal for use in tiled showers, bathtub surrounds, residential steam showers, and other tile applications in wet areas. 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. After Kerdi, a brush or roller applied liquid membrane such as RedGard works very well. The first waterproof cement backer board on the market, HardieBacker with HydroDefense Technology provides the same strength, ease of […] Use cut pieces of Noble, Kerdi, Kerdi band in-lue of the sealant they sell. 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. by A. If you respect the kerdi band overlap specification, you won't have any problem. Re: kedi band over dens shield You have to create your own lap joints with Wedi, router or cordless circ saw. Backerboard plus a waterproofing membrane like Redgard is all that is needed for tub surrounds with thinset then tile. Other trowel-applied covering materials, such as plaster, can also be used. 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. KERDI was developed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. If the women don't find you handsome, they should at least find you handy. by Buccaneer » Thu Jul 30, 2020 4:18 pm, Post only one section of the wall needs waterproofing, … Press KERDI fully into the bond coat. For acid-resistant coverings, use an epoxy adhesive to set and grout the tile. I use denshield, with liquid over the pan and a divot a lot of the time. Once the entire membrane—with seams, corners, and connections—has been completely bonded, and therefore waterproofed, the covering may be applied. That's the same thing the lady at Schluter's said. Shop tile membranes and a variety of flooring products online at Lowes.com. by A. 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. Find the website that's made specifically for you. 4. Well, that brings us to the end of our list. Hello First time poster- embarking on a wetroom project. Waterproofing Membrane Strip. 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. 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 … Note: Water testing of the assembly Cut KERDI to size prior to application. Kerdi really offers very little advantage over hardiboard plus membrane. Post Kerdi is waterproof up to a certain water pressure. I cannot tear the Kerdi sample with my bare hands like I can the liquid-applied products. 1. by Shannon » Thu Jul 30, 2020 10:30 pm, Post Please try again later. 3. The manufacturer of the waterproof membrane permits this approach, and it works. Waterproofing your bathroom showers, floors and tub surrounds is a small but integral part of any bathroom renovation. I’ve never used a liquid membrane over Kerdi so I can’t say what it would do? ... a liquid membrane with a Kerdi drain is probably the simplest, easiest, no brainer way to waterproof a shower you could do. Both are face screwed. 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. Cost of the wall needs waterproofing, on top of the liquid membrane for ease and avoid. 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