This allows the cement to properly hydrate, resulting in To ensure the floor is clean, wipe it with a wet sponge. Welcome to the site. Applying a conventional cement backer board to such a structure is almost impossible. When screwed to the framing, thin strips of cement board fracture more easily than thin strips of fiber-cement. Thanks to Mongo's earlier post, we knew we'd have to spritz the Hardi -- but found that even that wasn't quite enough. It is a pliable waterproofing membrane that also doubles as a vapor retarder. I just a few weeks ago put kerdi on top of hardi-board in my shower and it was PAINFUL! If you are laying tile on floors that are wavy or out of level, self-leveling underlayment is a great solution. That's the way us "Tile Guys" do it all the time. Thanks for contributing an answer to Home Improvement Stack Exchange! #4 You could be adding a good 1000 pounds to your install too. The curb doesn't have to be any wider than a 2x4. Like the example above. When doing so, it is important to ensure that the drywall surface is clean and free of dust, grease, and loose paint. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'remodelormove_com-box-3','ezslot_2',173,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-box-3-0');Yes, you can put Kerdi membrane over cement board. To line niche shelves, for instance. Thanks Paul! It fell right off? We also found that using a heavy rolling pin worked wonders for really setting the Kerdi. I have watched it done 10-15 times, have good skills, and if I tried to make large mortar walls myself it might like a little kid threw up concrete Should I use Kerdi membrane or cement backerboard? What do you mean it doesn't adhere? Properly waterproofing a shower area sharing a living room wall, Can I use cement accelerator to decrease setup time of modified thinset. Too little, and the kerdi will never show you gray, no matter how you sweat. Once youre sure that the membrane is completely dry, you can then move forward with tiling. There are numerous ways to do this. Additionally, it is important to waterproof cement board before tiling, as the grout and tiles can help keep the board watertight. Its essential to protect surrounding wall and floor surfaces from water or moisture damage that can occur in these areas. Should I redo this wall to avoid a mold sandwich? I guess that why it was so frustrating that cement board is just sooo thirsty. Slap it up comb it out, leave every ridge tall and perfect. An additional layer of sealant can also be applied on the seams for extra protection and water resistance. I also used a larger sized trowel than the one recommend by Schluter. Additionally, a liquid water-resistant membrane should be applied over all surface areas before installation. Regardless, cement board is a great, trusted tile substrate that will work well on both walls and floors. Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. Step 2: Determine the room's center. 1. Hang the cement boar. I barely touch it with my hands before going to the tape knife. Firstly, it is important to ensure the wall is adequately prepared and that it is smooth, flat and free of defects. The perfect fold is tricky and many of my first steam showers where built without the sealed slip joint. Waterproof showers are the trend today, so RedGard is an excellent alternative to cement boards that act as vapor barriers. It worked well - just like wallpapering. In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. 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. That means that you do not have to rely on a surface membrane or worry about the board failing if the core is exposed to water. Furthermore, if you're working in an older home KERDI-BOARD fits better than cement board in odd spaces. We installed cement board on the walls, and today when we attempted to apply the Kerdi membrane we could not get it to adhere. Press the Kerdi Membrane into the Thinset Mortar with firm, even pressure to achieve full mortar coverage. Unlike cement boards, you can bend this material without it breaking. Hardibacker is a VERY "thirsty" material that sucks the moisture out of the mortar VERY quickly and I don't like it. The best answers are voted up and rise to the top, Not the answer you're looking for? Shouldn't take too long, maybe an hour or so. you should still water proof with a liquid membrane product like RedGuard. The cement board needs to be clean, free of debris, and dry. Sure, you can do it.just be sure to "spritz" or wet the hardi thoroughly before.it's pretty "thirsty.". No bulges either, but definetly no thin spots.-Not paying attention to the direction of the comb. However, a cement board is generally easier and less expensive to replace if a repair is needed. See the foam bench and the corners. that's home depot homeowner installation method. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. I set the Kerdi with my hands, pat it into the thinset with my hands, then go over it with a 4" taping knife held at a low angle to embed the Kerdi in the thinset. How to adhere edge of bullnose tile to drywall as trim for shower/tub surround. I'm guessing he put a 2x6 across for the curb? This product is available in 3/16", 3/8", 1/2", 5/8" 3/4", 1" 1-1/2" and 2" thicknesses, allowing for a wide variety of installation options. A good rule of thumb is 24 hours per inch of thickness, then one more day on top of that to be sure. . When it comes to applying KERDI, however, it is advised to use a regular thinset that includes portland cement as its main component. With that said, lets take a look at the importance of choosing the right tile substrate, the options you have, and which tile underlayment material you should choose Kerdi Board or cement board? I look at ceramic tile as a lifetime-of the house-product, so I use the best material for the job.I prefer to use cement board as the substrate with the Kerdi on top. . Cut the shower tray to size. A hundred times better to have too much before you comb than too little. Yes, Hardie board needs to be waterproofed. x 48 in. WATCH HERE: https://www.youtube.com/watch?v=3TRLd2HYhbU&list=PLO47JMsdYGrkxM_ZkOc3lMnsVhTqj80bB#justdoityourself #lovingit #p. We sponge water onto the cement board. When it comes to selecting thinset for cement board, there are a few important factors to consider. RedGard On Hardibacker Board. Also are you saying that you wet ("booking the Kerdi") the Kerdi, as well? But I did want to understand the cost breakdown as the walls then become WAY more expensive than it would be with Redguard. ps, now that you don't need it anymore you can throw that useless cheap piece of crap magnesium float my way. That was not a fault of the Kerdi, or the installation. Yes, KERDI membrane will stick to cement board. If you want to go to the extra effort of putting the membrane over drywall, there is no need to use greenboard. We like that the Kerdi membrane material installs easily over almost any substrate, including standard wallboard. So long as the seams and joint areas are properly prepared, the panels can also provide waterproofing. Kerdi-Board panels allow the installer to prepare and create a broad range . 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. Houzz Pro: One simple solution for contractors and design pros, surfer thanked Avanti Tile & Stone / Stonetech. Making statements based on opinion; back them up with references or personal experience. After today's tutorial, you'll gain the confidence to transform your old bathroom into a new space. Like cement board, the boards are heavy and hard to cut. What's the difference between a power rail and a signal line? Why is there a voltage on my HDMI and coaxial cables? This is necessary to ensure that the membrane will adhere properly to the drywall. The site is called floorelf.com. One of the company says they are going to apply kerdi membrane on the drywall, then tiles onto the kerdi membrane, and as such as cement backboard would not be required. Other mistakes I was making early on:-over working the thinset. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Ceramic Tile Advice Forums - John Bridge Ceramic Tile, http://www.youtube.com/watch?v=G4HjHT6_cUo, http://www.youtube.com/watch?v=wEt6irjJCI0, My master suite addition & full bath to 1/2 bath renovation. How long should I wait after painting on the Redgard before I try to reapply the membrane? Step 8: Allow to dry. Important to overlap seams in a shingle method. Schluter approves their waterproof Kerdi membrane over drywall. If you ensure that silicone goes in and that the thin-set and grout do not bind there you should be good to go. FRC board tends to be more moisture-resistant than gypsum board and is best suited for outdoor projects such as showers or tub surrounds. Cement board is a good, reliable backer board that works well on both floors and walls. Fiber cement board is a variation of cement board that is made from compressed cement and sand and reinforced with wood fibers throughout. Sweeby-Can you clarify- I undestood that the thinset would tend to dry out from the thirsty hardi or skim over from the air; so how does booking the Kerdi help with the first? These multifunctional tile substrate and building panels are thus perfect for creating bonded waterproofing assemblies with tile coverings. Drywall under Kerdi would have been a better choice. This is often accomplished by filling any holes and cracks in the wall with appropriate spackling or patching material. Cementboard sufficient to a tub surround is dirt cheap .vs. link to What Kind Of Paint For Garage Walls? Another advantage is that the polyisocyanurate core of foam boards is waterproof. 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. Yes, it is possible to put Kerdi over regular drywall. The best answers are voted up and rise to the top, Not the answer you're looking for? Once the wall is prepped, use a primer that is compatible with the KERDI membrane so that it will properly adhere to the wall. With so many different types of underlayment to choose from, it can be hard to decide which is best for your project. Being a Los Angeles resident, Jessica spends a lot of her time looking for her next DIY project and sharing her love for home design. You absolutely need to include some sort of substrate (cement board, green board, regular drywall) with the Schluter-Kerdi waterproofing kit. Kerdi membrane can be used on cement board, drywall, and, as you may have guessed- greenboard. The Kerdi-Line prefab pans and drains make me feel way more comfortable with the waterproofing. craft paper or plastic is great if the inspector wants it but it is (should be) doing nothing for a tub surround that has HB/redgard/thinset/tile. 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. I have to redo my tub surround due to moisture leaks and failing grout. But there are downsides. Tile can be installed directly over Kerdi-Board using the thinset method; For use with ceramic and natural stone tile; Return Policy; California residents. First, you would waterproof with your favorite liquid waterproofing membrane of . Seems like I've been using the full measure of water the bag calls for, plus about 10%.-50 lbs of thinset at a time is too much for an amatuer. For indoor projects and gypsum board, thinset with a latex acrylic modifier is ideal. 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([[468,60],'remodelormove_com-medrectangle-4','ezslot_12',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. Well, DH said he had virtually no time to work with the stuff before it dried out, so he switched from my spritz bottle to a sponge. Take care to cut the KERDI membrane to the appropriate size and apply it to the wall, ensuring that it is properly adhered and that the edges are sealed with KERDI sealant. We want that inside corner able to move. Blocking should be constant across this area when openings are larger than your fist. Removing bathroom tile from cement backerboard, Transition from KERDI membrane backed, to not backed. Ratings (91) (5) (91) (3 . This will ensure that the coating sticks to the cement board. After installing your mud bed, make sure it is fully cured before applying Aquadefense. Bulk update symbol size units from mm to map units in rule-based symbology. Is it ok to fasten a shower surround to Schluter Kerdi curb? Plus, if you use the mold and moisture resistant drywall, it will be extra insurance against mold. New England. All shower/tub areas should have concrete board (I prefer hardiboard). I hang Kerdi on cement board and fibercement board all the time. The foam core surrounded by synthetic cloth on both sides and adhered with resin glue is. The main types of cement board you could encounter are Fibre Reinforced Cement (FRC) board and gypsum board. It's still applied to cement board. Both may be effective substrates, but Kerdi Board boasts significant advantages. We tried soaking the cement board and applying the kerdi in small sections. Think about movement. 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. The taping knife at a low angle makes an enormous difference, and I'm very grateful for that hint. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. 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. "..2) the kerdi band isn't stuck flat -- the edges in some spots are wavy. Personnaliser mon exprience l'aide de cookies, Landscape Architects & Landscape Designers, Outdoor Lighting & Audio/Visual Specialists, epoxy or marine paint over greenboard for my shower walls (not tile), Need advice on bathroom remodel - using hardiebacker boards, HELP! By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The main issue caused by non-waterproof cement boards is the eventual warping and damage to the tiles, making it difficult and costly to fix without removing all the tile and starting over. Some being easier to work with than others. To install Kerdi Membrane, start by applying Schulter ALL-SET mortar (or similar) to your cement board substrate using a 1/4" x 3/16" V-Notch Trowel. It is also widely available and a relatively inexpensive option approximately $10 for a 3-foot by 5-foot sheet. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Your email address will not be published. This is the traditional tile backer. I've never had a failure. What precautions should I take installing tile on a backerboard in an area surrounded by cement? For all the substrates listed in this Handbook (e.g., gypsum board, cement backerboard, etc. is the contractor creating a waterproof schluter-kerdi shower? vegan) just to try it, does this inconvenience the caterers and staff? Yes, Kerdi membrane can be installed over plywood. But I can't give you a +1 because telling someone to mortar all the walls in a large shower is like telling them to make an ice sculpture. I have corrugated metal shower surround & grab bars. The difference between the phonemes /p/ and /b/ in Japanese. Fixing that is not that easy though. Step 6: Choosing the Next Tile. It only takes a minute to sign up. Yes, you need waterproofing behind shower tile. there should be a small gap between the backer board and the tub. Sloped Shower Tray KST1220/1525 - The Home Depot. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Connect and share knowledge within a single location that is structured and easy to search. 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. Cross your fingers and hope it's all OK. Not the best Kerdi Showcase. Hello D Zak! Just wondering how effective is the tile on kerdi membrane vs the traditional cement backboard where tiles are glued directly to the drywall? Your Get free, zero-commitment quotes from pro contractors near you. How do you show the depth of a hole in a drawing? 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. 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. On the downside, the cement boards are heavy, somewhat difficult to cut and can leave abrasive sandy crumbs that can damage tubs and shower bases if youre not careful. Not everyone knows how to do mud and lathe it's so old school plus it wears you out, ive been a setter for 27 yrs and I have yet to go back to one of my showers I installed using perma base or durock, with a liner, i have started using waterproofing such as redguard or aqua-defense. Kerdi Board as a whole is much easier to install than Cement Board. Kerdi Membrane is a product of Schluter systems. All it takes is the right preparation. What is a word for the arcane equivalent of a monastery? The 30-in. It looks like you have Kerdi installed on the floor and not Kerdi Board. PROBLEM SOLVED for Tub Flange when Installing Cement Board and Tile. Kerdi Board is also significantly lighter in terms of weight than cement board, meaning they can be transported and lifted into place with ease evening hauling five panels at a time should be no problem. What changes do you suggest to make Bathroom looks more updated? Once the membrane is in place, it can be sealed and reinforced with Kerdi-Fix sealant, Kerdi band, and Kerdi-Drain for added waterproofing strength. Recovering from a blunder I made while emailing a professor, Minimising the environmental effects of my dyson brain. Required fields are marked *. I used 1/2 Hardibacker board over the studs and then used the Kerdi membrane over the Hardi. Can I install Kerdi board just on the walls of my shower and use a PVC membrane on the floor? In normal residential use I wouldn't worry about it. Continuing Education for Architects & Designers. 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. On the other hand, a Schlter system offers improved thermal insulation, which can help to reduce heating costs. Whether or not you need a Kerdi membrane is a factor of use. When installing KERDI with . Moisture resistant can cause similar problems, and there is absolutely no advantage to it. The benefit of using kerdi is we can lay it over drywall, We've added a "Necessary cookies only" option to the cookie consent popup. Rolling pin, good, now I can throw away my magnesium float.LOLCasey. If a pipe or faucet ever leaks in the wall this will ruin your shower. Yup! Look at it this way; Withe Kerdi, you either trust it or you don't. . Re: Kerdi on shower curbs. I would get someone else. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The mortar does . It may take more than 1 beer:). A quality underlayment will also serve as a waterproof barrier between the subfloor and the tile surface.
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