kerdi membrane over cement board

This is confusing since Kerdi Board has no Kerdi on it. Fiber cement board is a variation of cement board that is made from compressed cement and sand and reinforced with wood fibers throughout. I used this to seal a 3 1/2 by 6 1/2 foot shower with 7 foot walls. And for a more secure fit, you can also use screws. Overall, waterproofing behind and around shower tile is a critical part of any installation to ensure that the area is adequately protected from water and moisture damage. Houzz utilise des cookies et d'autres technologies de suivi similaires pour personnaliser mon exprience utilisateur, me proposer du contenu pertinent et amliorer ses produits et services. Putting this stuff on walls is difficult and time . @JimmyFix-it - hardiboard is not really porous unless it is completely saturated. What's the difference between a power rail and a signal line? Go with smaller bags or only mix half. Schluter Kerdi on regular drywall - GreenBuildingAdvisor Kerdi-Board panels allow the installer to prepare and create a broad range . The shower is ready for tile. We tried adding water to the thinset, we tried . The gridlines printed on the surface are beneficial for the installation process, also allowing for quick, neat cuts with a utility knife. We tried adding water to the thinset, we tried using a larger notch trowel, but nothing seems to make the Kerdi stick. For the floor, he should've put a mortar bed, then a membrane that goes over the curb, then another mortar bed. Look at it this way; Withe Kerdi, you either trust it or you don't. Yes, it is possible to put Kerdi over regular drywall. When screwed to the framing, thin strips of cement board fracture more easily than thin strips of fiber-cement. It is a topical waterproofing layer that is put over the substrate to keep water from getting to the wood frame and nails. Why does drywall work in a Kerdi Shower? - Terry Love Plumbing Advice Installation instructions vary depending on the type of Kerdi membrane being used, but typically the membrane is applied directly to a clean, dry plywood surface that is free from dust, dirt, and other debris. Houzz Pro: One simple solution for contractors and design pros, surfer thanked Avanti Tile & Stone / Stonetech. link to How To Organize A Bathroom Closet. Rolling pin, good, now I can throw away my magnesium float.LOLCasey. Following these steps will help ensure that your shower space is properly sealed, and thus that the cement board is well protected from moisture. Depending on your project and the specific cement board you are using, you will want to select a thinset appropriate for both.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[468,60],'remodelormove_com-large-leaderboard-2','ezslot_15',158,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-large-leaderboard-2-0'); The two primary criteria to help guide your selection are the type of cement board you are using and whether you are installing it indoors or outdoors. Schluter Kerdi 108 Sq Ft Waterproofing Membrane - amazon.com We use a pump action garden sprayer and its usually dry by the time we clean the sprayer. How should I transition between cement board floor and alcove tub? Your email address will not be published. Once the wall is prepped, use a primer that is compatible with the KERDI membrane so that it will properly adhere to the wall. Step 7: Cut the Tile. The cement board can also become weakened and start to flake away when it absorbs moisture, causing ugly spots and patches to start appearing on the wall. Shouldn't take too long, maybe an hour or so. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. Additionally, you can use KERDI-BAND around corners, seams, and joints to help with a waterproof installation. The completed assembly takes the place of more traditional backer board when installed over 3/4-inch wood subfloors. Contact us: 888-472-4588 liquid waterproofing (redgard) over durock cement board - bathroom Hardi is definitely a "thirsty" substrate but will work, even without a primer of RedGard. How "tidy" does the kerdi band need to be? The great thing about Kerdi Board is that it is lightweight and easier to maneuver. This flexible polyethylene layer is easy to install and can protect the tile from both cracking and moisture. Kerdi Membrane not sticking to cement board - John Bridge Step 3: Apply Thinset. I would get someone else. There are many different types of underlayment to choose from, but they all serve the same purpose. That was not a fault of the Kerdi, or the installation. link to What Kind Of Paint For Garage Walls? ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. Your Get free, zero-commitment quotes from pro contractors near you. First, you would waterproof with your favorite liquid waterproofing membrane of . If you ensure that silicone goes in and that the thin-set and grout do not bind there you should be good to go. Sheets of glass mat gypsum are made from water-resistant silicone-treated gypsum, reinforced on both sides by fiberglass mats. Learn about the options in exterior siding before you choose, Before you pick up a single tile, pull from these tips for expert results, Slip resistance, curves and even the mineral content of your water all affect which tile is best for your shower, We help a Houzz user ask all the right questions for designing a stylish, practical and safe shower bench, This isn't a light DIY project: You'll need heavy-duty tools and plenty of protection for your home and yourself, In steamy quarters, tile needs to stand up to all that water and vapor in style. Self-leveling underlayment has many of the same advantages as a dry-pack mortar bed but doesnt require as much skill to install. Waterproof showers are the trend today, so RedGard is an excellent alternative to cement boards that act as vapor barriers. Since KERDI is impervious, it does not deprive the mortar of its moisture. When I tried to use the edge of my trowel [per schlutter video] I could see I was pulling a lot of the 'felt' off the backer. What I would be most scared off is the fact that no inside or outside corners appear to have been used. How to Install Kerdi Membrane - YouTube bathroom - Kerdi Membrane over cement backerboard - Home Improvement The 30-in. 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. Make sure the floor is level in the shower. The cement board needs to be clean, free of debris, and dry. We think it is the cement board (Durock) sucking the moisture out of the unmodified thinset. How did this project turn out? Using Kolmogorov complexity to measure difficulty of problems? Builder saying he doesn't want to put my trim tile in here. Underlayment is designed to smooth out uneven areas of the subfloor and form a rigid layer that prevents the flooring from bending. Kerdi Questions and Answers - Kennedy Kitchens & Baths I think I'll try using the thinned mixture of Redgard and then try the Kerdi membrane again. Preparing drywall for KERDI membrane requires a few important steps to ensure a successful application. Additionally, seal the space around any pipes and fixtures that can be found in the shower. How to install a kerdi membrane over cement backer board - Quora Most cement-based thin-set mortars are suitable; however, it is important to check the manufacturers instructions to ensure that the product is approved for use with Schluter systems. When it comes to installation, a Schlter system is typically easier to install than a cement board, and it also allows for more design freedom as it does not require a traditional waterproof layer. To line niche shelves, for instance. Here's how to get it right the first time, If you've got a steady hand, a few easy-to-find supplies and patience, you can install a tile backsplash in a kitchen or bathroom, Step 4 in swapping your tub for a sleek new shower: Pick your waterproofing materials and drain, and don't forget to test, Work with your contractors and installers to ensure a safe, stylish curb that keeps the water where it belongs, Get the benefits of a time-honored ritual without firing up the coals, thanks to easier-than-ever home steam systems, Landscape Architects & Landscape Designers, Outdoor Lighting & Audio/Visual Specialists, Out With the Old Tile: 8 Steps to Prep for Demolition, Convert Your Tub Space Into a Shower Waterproofing and Drainage, Steam Showers Bring a Beloved Spa Feature Home. And by 'booking the Kerdi' I mean we put it in the bathtub, sprayed it with the handshower, then booked it (just like wallpaper). This allows the cement to properly hydrate, resulting in To ensure the floor is clean, wipe it with a wet sponge. One thing I do like fibercement (Hardie) for is when I need thin strips of cement board. First, felt paper is stapled to the floor and covered with expanded metal lath. The drywall's back side fails, and it's just as bad or worse than it was on the tile side. I don't want to use the Ditra membrane product but rather tiles directly over the cement boards. Cementboard sufficient to a tub surround is dirt cheap .vs. We store towels, medicine, toiletry supplies, first-aid gear, massage devices, facial steamers, spare Painting your garage is a great way to improve the look of the space and make the walls easier to clean. Yeah it seems that the only products that will be compatible with cement board and the kerdi membrane are bostik ditra-set and schluter all-set (or one of schluters other products). With Wedi products, the compound curves are easy to produce quickly. When I do another shower I'll use real cement board, not Hardi-board. GoBoard Vs. Kerdi For Your Shower: In-depth Comparison if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'remodelormove_com-large-mobile-banner-1','ezslot_17',164,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-large-mobile-banner-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. there should be a small gap between the backer board and the tub. Spacers are the next step. After installing your mud bed, make sure it is fully cured before applying Aquadefense. Is it Sinful to put Kerdi over Hardi-backer? - Houzz Cement board is a bit better, but you need to spray either one before applying the mortar so that it doesn't "skin over" before you can get the Kerdi up. Then you can apply a thin layer of KERDI-FIX to the board, the membrane over top, and use a rolling pin to press it down and ensure a secure bond. Additionally, the use of modified thinset with KERDI could lead to cracks and other issues down the line as the modified thinset can shrink and pull away from the KERDI membrane over time. True cement board (Durck, Wonderboard) is my first choice as a tile or Kerdi backer. Cement board is a good, reliable backer board that works well on both floors and walls. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. Your real issues are the lack of proper corners on this shower. However, if installed on drywall, it only protects one side. Properly waterproofed Hardie board should last for many years. You don't want to block off the end of the air chanel and trap half a sheet worth of air under there.-Not paying attention to the direction of my knife. The shower tray eliminates the need for a mortar bed. ), Minimising the environmental effects of my dyson brain, Finite abelian groups with fewer automorphisms than a subgroup. Additionally, all thin-set mortars should be suitable for use in wet or feature depths of up to 1/8 inch. 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. The difference between the phonemes /p/ and /b/ in Japanese. Kerdi membrane prevents water damage and mold development. Find the website that's made specifically for you. Kerdi Membrane Over Plywood ThePlywood.com Press the Kerdi Membrane into the Thinset Mortar with firm, even pressure to achieve full mortar coverage. Recovering from a blunder I made while emailing a professor, Minimising the environmental effects of my dyson brain. This means that even if your waterproofing system leaks, the cement board will remain intact. Sledge hammers for the floor, that might take a bit of time. With Kerdi Board you get to enjoy an effective product that is lightweight, easy to cut, waterproof, and leaves behind no dust! When installed, Kerdi Board creates a substrate that is level, flat, square, plumb, and dimensionally stable. Fiber cement board is available in 1/4-inch and 1/2-inch thicknesses. (3ft-3in wide). It's a lightweight polystyrene board faced with Kerdi that comes in various thicknesses that you can use in place of drywall or cement board. These multifunctional tile substrate and building panels are thus perfect for creating bonded waterproofing assemblies with tile coverings. Also, apply the acrylic mastic between the Create curved designs around pipes or columns using the vertically-grooved KERDI-BOARD-V, or use L-shaped KERDI-BOARD-E panels to enclose similar. We waterproof the outside the hardiboard in 99% of the install with something like redgard. It only takes a minute to sign up. If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? Do the prefab Schluter niches like the double unit 12 by 28shelf have a built in pitch to the bottom and middle shelves to drainoff water as shown in niche that you built in that thread? I think the first one I used was cheap and that was part of the problem. My understanding is that Schluter-Kerdi, being a sheet topical membrane, recommends just going with regular drywall instead of cement board but you can certainly use cement board as the substrate. You absolutely need to include some sort of substrate (cement board, green board, regular drywall) with the Schluter-Kerdi waterproofing kit. Thanks for contributing an answer to Home Improvement Stack Exchange! While cement board may be the most common and widely-known tile substrate, Kerdi Board is giving it a run for its money. We are DIYers who have already remodeled one bathroom successfully, but this is our first time using The Schluter shower system. Shower walls construction made easy with Kerdi-Board panels. - La Tuilerie Once its applied, the last step is to follow up the waterproof coating with a waterproof sealant. Kerdi-Board 1/2 in. x 48 in. x 96 in. Building Panel It is important to waterproof Hardie board to make it more water-resistant, as well as to protect the materials from the elements. Waterproofing cement board is relatively simple and there are several different waterproofing products available. Step 6: Choosing the Next Tile. . Start by cleaning the cement board with a mineral oil soap; this will help reduce mold and mildew growth throughout the life of the shower. Can I put Kerdi board over drywall? Can You Put RedGard On HardieBacker Board? - Next Modern Home Kerdi Board is suitable for a number of interior applications. Properly waterproofing a shower area sharing a living room wall, Can I use cement accelerator to decrease setup time of modified thinset. Foam-core tile backing board has two big advantages over other backer boards. You have to seal every little hole in the floor so the underlayment doesnt seep into spaces below. It could take longer if the space is particularly wet or humid. Ratings (91) (5) (91) (3 . And we are using a drippy mixture, it slides off the trowel. Bathroom closets are often catch-alls for anything and everything remotely related to self-care. I always install it over cement board or backerboard, never over drywall, even blueboard or the mold resistant greenboard. It also features fleece webbing that allows for effective anchoring into thin-set mortar. Schluter-KERDI | Waterproofing (KERDI) | Schluter A good rule of thumb is 24 hours per inch of thickness, then one more day on top of that to be sure. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Kerdi 3 ft. 3 in. Both may be effective substrates, but Kerdi Board boasts significant advantages. Your air bubbles will travel along the valleys you've made, and it's way better if you only have to move them 20 inches to the nearest edge rather than all the way from the ceiling to the floor [Again, Mongo can, but he has mad skills].-Not paying attention to the principle of bedding top down, center out. It costs more but it;s worth it for the ease of install IMO. When I tried putting up the first sheets, which were only 36" x 39", and even though I had SOAKED the hardi, to the point water was pooling on the floor, the thinset was already drying before I got the Kerdi up, and I couldn't get it to adhere properly no matter how hard I tried. I have to redo my tub surround due to moisture leaks and failing grout. Hardibacker is a VERY "thirsty" material that sucks the moisture out of the mortar VERY quickly and I don't like it. When applying the primer, make sure to cover all surfaces thoroughly, as these will be completely covered by the KERDI membrane. #3 This is a DIY site. As fiber cement board is similar to regular cement board, it makes sense to choose the one that is cheaper or more readily available. 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. Why do small African island nations perform better than African continental nations, considering democracy and human development? However, the answer you provided above suggests that the OP could omit a waterproof membrane, that I. Everyone knows brick and stucco, but what about fiber cement and metal? Maybe try another brand of thinset? To put things into perspective, consider that a tile floor is made up of three layers: the subfloor, the underlayment, and the tile surface you walk on. The cement board core itself is not waterproof, but it can withstand water without falling apart. Cement board is typically used in wet areas, such as bathrooms and areas with a lot of moisture, because it is waterproof and provides a level of protection from water damage and long-term moisture exposure. This makes Kerdi Board suitable for a wide variety of interior applications, including kitchen countertops. ", Signed,Never Hung Kerdi A Day In Her Life. Yes, Hardie board needs to be waterproofed. What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? What is the proper substrate to use on tiled wall?

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