Allow the primer to dry completely before proceeding with the KERDI installation. Kerdi 3 ft. 3 in. 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. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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. We mixed the thinset, it wasn't as smooth as the utube video, but it was close, and we gave it ten minutes. Why do small African island nations perform better than African continental nations, considering democracy and human development? Portland cement-based unmodified thin-set mortars are dependent on the presence of moisture for hydration in order to gain strength. Since the existing wall board will be removed, I'd prefer to go a little extra and install a water proof cement board type base so the tile has a solid substrate even if it were to get wet . Important to overlap seams in a shingle method. 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. In . This will ensure that the coating sticks to the cement board. 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. Any competent tile contractor would float the wall in mortar giving you a stronger, level, perfectly flat, and square surface to properly install tile. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. I've never had a failure. This will help you achieve the best results and ensure the longevity of your project. It is lightweight and made of expanded polystyrene. Need help liner vs liquid membrane question. As far as the tile/prep work, you are right that he is shifting the blame. This will include installing its components, such as drain plate and drain collar, as well as Kerdi Band for further protection of seams and corners. We like that the Kerdi membrane material installs easily over almost any substrate, including standard wallboard. Installation. I simply sponge off the excess. Can I put Kerdi board over drywall? 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. When installing KERDI with . For the floor I make a dry mix mud base and then the Kerdi membrane. ".1) is is okay to use kerdi board instead of ditra on the floor? Preparing drywall for KERDI membrane requires a few important steps to ensure a successful application. MAPEI makes products for each step of the remodel process, giving you a single source solution, and only one phone number to call if you need assistance! Kerdi Board is suitable for a number of interior applications. Can you put Kerdi membrane over cement board? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. First, it's super lightweight compared with the rest. To prevent those movements from transferring to the tile floor, consider installing an uncoupling membrane between the concrete and tile surfaces. Can you put KERDI over regular drywall? - remodelormove.com It is important to waterproof Hardie board to make it more water-resistant, as well as to protect the materials from the elements. First Kerdi can be installed on drywall or cement board. We want that inside corner able to move. Kerdi-Board is an extruded polystyrene foam panel, with reinforcing material on both sides, covered by fleece webbing for effective anchoring of thin-set mortar. 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. You have to seal every little hole in the floor so the underlayment doesnt seep into spaces below. Run a damp towel over the cement board surface to dust . link to How To Organize A Bathroom Closet. The drywall's back side fails, and it's just as bad or worse than it was on the tile side. Kerdi Questions and Answers - Kennedy Kitchens & Baths Wedi vs. Kerdi Waterproof Membranes: Which Is Better? Since the existing wall board will be removed, I'd prefer to go a little extra and install a water proof cement board type base so the tile has a solid substrate even if it were to get wet, such as from a plumbing leak, or from infiltration on an exterior wall (as unlikely as that might be). First, you would waterproof with your favorite liquid waterproofing membrane of . Re: Kerdi on shower curbs. If you are looking for a way to minimize height buildup and eliminate a large level difference at thresholds, a mat product is a good solution. . When it comes to applying KERDI, however, it is advised to use a regular thinset that includes portland cement as its main component. Kerdi board, on the other hand, is an extruded polystyrene foam panel. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Your email address will not be published. Their lighter weight makes moving panels around during installation a cinch, which is a far cry from the heft of conventional cement board. Manufactured by Schluter Systems, Kerdi Board is a multifunctional tile underlayment and construction panel, that can also be implemented for forming bonded waterproof assemblies with tile coverings. How should I transition between cement board floor and alcove tub? 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). Like cement board, the boards are heavy and hard to cut. It costs more but it;s worth it for the ease of install IMO. Regardless, cement board is a great, trusted tile substrate that will work well on both walls and floors. About an argument in Famine, Affluence and Morality, Acidity of alcohols and basicity of amines. Kerdi Board Vs. Cement Board (What's The Difference?) - Home Mindset Cement board is a heavy mess compared to drywall, and drywall is a heavy mess compared to Kerdi Board. The taping knife at a low angle makes an enormous difference, and I'm very grateful for that hint. is that because water doesn't really hit that area?" - Lisa Jasper That's pushing it but should be fine. My floor tiles are 2" x 2"." - Lisa Jasper No - you can not use Kerdi Board on the floor. Step 3: Apply Thinset. 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. However, a cement board is generally easier and less expensive to replace if a repair is needed. #2 - Your suggestion has plenty of merit though. x 96 in. They are square. Kerdi Membrane is a product of Schluter systems. You're correct if you use the shluter kerdi membrane you do not use a vapour barrier since it creates a sandwhich effect that doesn't allow the substrate . If you want to go to the extra effort of putting the membrane over drywall, there is no need to use greenboard. This liquid waterproofing solution does more than keep water away, it also promotes tile adhesion and prevents cracking. Problem with very thick cement board/ tile/bullnose edge, Steam Shower Slip Joint Detail - The secret is in the boarding stage. What is the proper substrate to use on tiled wall? 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. Kerdi on shower curbs - JLC-Online Forums First, its super lightweight compared with the rest. Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. To ensure that the Kerdi is completely dry prior to tiling, inspect the inside of the membrane for any signs of moisture or condensation. Additionally, all thin-set should be allowed to cure for 24 hours before tiles are installed. I trust it and have never had a callback. Hi.I have a unique situation. Install an Uncoupling Membrane Between Concrete and Tile. What changes do you suggest to make Bathroom looks more updated? 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. The manual can be found here: http://floorelf.com/waterproof, I would say unless you are experienced in working with Schluter-Kerdi waterproofing membrane kit, then I would say work with an easier waterproofing approach, either liquid waterproofing or a combination of liquid and traditional waterproofing (plastic covering the wood frame). Cement board is particularly vulnerable to water damage, so waterproofing can help protect it and help it last longer. I still wet the walls first. 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. Sealing the tub flange for tile: 3 methods - DIYTileGuy The gridlines printed on the surface are beneficial for the installation process, also allowing for quick, neat cuts with a utility knife. After installing your mud bed, make sure it is fully cured before applying Aquadefense. 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. Yes, Kerdi membrane can be installed over plywood. I also used the Kerdi drain. I want to mount a cast iron bathtub, but not pull down my 1905 plaster and lath. Why does drywall work in a Kerdi Shower? - Terry Love Plumbing Advice Wedi showers feature a pre-sloped base that is already installed. 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. What's the difference between a power rail and a signal line? The major drawback to cement boards is their weight, as they are incredibly heavy and can be difficult to cut. I would avoid Hardi, as Avanti is right that it is thirsty. Finally, use a roller or brush to ensure that the membrane is secure and has no wrinkles or air bubbles. It's still applied to cement board. You are wise to use a cement board. This feature makes building the base structure much easier and more cost . Let's start! @JimmyFix-it - You are right. If you ensure that silicone goes in and that the thin-set and grout do not bind there you should be good to go. Needless to say, the drywall turned to mush. x 5-ft. and 3 x 5-ft. sheets of cement board are sized for efficient use around bathtubs and showers. We think it is the cement board (Durock) sucking the moisture out of the unmodified thinset. Drywall under Kerdi would have been a better choice. We ended up sponging the Hardi and wetting and booking the Kerdi (a la wallpaper), and that made the installation go much smoother. Self-leveling underlayment has many of the same advantages as a dry-pack mortar bed but doesnt require as much skill to install. Asking for help, clarification, or responding to other answers. What was the indicator that let you know that spritzing was not enough, and that you needed to 'sponge' the Hardi? ), Minimising the environmental effects of my dyson brain, Finite abelian groups with fewer automorphisms than a subgroup. If you are good with a trowel and understand how to set up and use screeds as a guide for leveling or forming the mortar, pouring a traditional mortar bed may be a good alternative to tile backer board, especially on uneven or sloping floors. vegan) just to try it, does this inconvenience the caterers and staff? Hardie board is a cement-based siding product that is water-resistant, but not waterproof. We installed cement board on the walls, and today when we attempted to apply the Kerdi membrane we could not get it to adhere. How long should I wait after painting on the Redgard before I try to reapply the membrane? It installs with screws, then you tape the joints & screw holes and install your tile. Cementboard sufficient to a tub surround is dirt cheap .vs. When installing Schluter Kerdi Membrane over cement backerboard: Should I use Alkali Resistant Mesh Tape and thinset on the seams of the backer board (for long term durability to prevent each board moving independently thus preventing cracking) prior to installing the Kerdi membrane. Can you remove tile from Kerdi membrane? After today's tutorial, you'll gain the confidence to transform your old bathroom into a new space. When installing Schluter Kerdi Membrane over cement backerboard: Should I use Alkali Resistant Mesh Tape and thinset on the seams of the backer board (for long term durability to prevent each board moving independently thus preventing cracking) prior to installing the Kerdi membrane. You probably have to go to a big box store's special order desk or find a specialty tile supplier to find it. Once the adhesive has been applied and has had time to properly cure, then the KERDI membrane can be applied to the wall. This is necessary to ensure that the membrane will adhere properly to the drywall. A hundred times better to have too much before you comb than too little. It may take more than 1 beer:). On the other hand, a Schlter system offers improved thermal insulation, which can help to reduce heating costs. How to prep a shower for tile with Schluter Kerdi - TwoFeetFirst When applying Kerdi membrane to cement board, the edges and seams of the membrane must be lapped, meaning that each layer should overlap the portion underneath it by a minimum of two inches. Making statements based on opinion; back them up with references or personal experience. It looks like you have Kerdi installed on the floor and not Kerdi Board. I guess I could save a few $ and laminate 1/4" drywall there instead.IOW, is hardi OK to level out the tub flange?Not that it matters, but the tile will be 3x6 carrara to the ceiling.Casey. It works well, is what Schluter recommends and I've never had an issue with it. Yes, Schluter membranes can go over cement board. What do you mean it doesn't adhere? Moisture resistant can cause similar problems, and there is absolutely no advantage to it. Do new devs get fired if they can't solve a certain bug? Yup! How to adhere edge of bullnose tile to drywall as trim for shower/tub surround. When screwed to the framing, thin strips of cement board fracture more easily than thin strips of fiber-cement. Kerdi-Shower-T/-TS/-TT is a prefabricated sloped shower tray with integrated Kerdi waterproofing. How to install a kerdi membrane over cement backer board - Quora kerdi membrane over osb Is it plausible for constructed languages to be used to affect thought and control or mold people towards desired outcomes? What is a word for the arcane equivalent of a monastery? Look at it this way; Withe Kerdi, you either trust it or you don't. RedGard, on the other hand, is a liquid waterproofing membrane made by Custom Building Products. Cement board sucks up the moisture and as a result, the kerdi doesn't always stick as well to cement board. x 48 in. Both may be effective substrates, but Kerdi Board boasts significant advantages. For all the substrates listed in this Handbook (e.g., gypsum board, cement backerboard, etc. Porcelain and ceramic tiles are stiff and hard materials, so if they are installed on an unlevel or bouncy surface they are highly susceptible to cracking. All it takes is the right preparation. In jobsite conditions and over a long time, who knows. Glass mat gypsum board is a better choice. That's the way us "Tile Guys" do it all the time. the cost of the tile job. For indoor projects and gypsum board, thinset with a latex acrylic modifier is ideal. All shower/tub areas should have concrete board (I prefer hardiboard). Kerdi Membrane Over Plywood ThePlywood.com liquid waterproofing (redgard) over durock cement board - bathroom 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. Shouldn't take too long, maybe an hour or so. Jessica considers herself a home improvement and design enthusiast. you should still water proof with a liquid membrane product like RedGuard. Significantly more time and effort is required to ensure a quality bond when using a modified thinset adhesive with KERDI, and for this reason, it is usually not recommended. This allows for future compression and an area at the corner where things are more forgiving. He would take his rough opening measurement and subtract the thicknesses of the tile, the cement board, and in his unique install method the purpleboard. A 1/2-inch thick, 3 x 5 foot sheet weighs just 7-1/2 pounds, compared with 45 pounds for a similar size sheet of cement board. Properly waterproofed Hardie board should last for many years. Can you put Kerdi membrane over plywood? - KnowledgeBurrow.com Kerdi can even be installed over drywall. I'm guessing he put a 2x6 across for the curb? It is a pliable waterproofing membrane that also doubles as a vapor retarder. Everyone knows brick and stucco, but what about fiber cement and metal? Step 6: Choosing the Next Tile. Install the Schluter Kerdi membrane over the backer board using the correct mortar. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. Finally, it is important to remember that any thin-set that has been exposed to moisture must be replaced. The foam core surrounded by synthetic cloth on both sides and adhered with resin glue is. If so, that means breaking up the floor pan. Kerdi Board as a whole is much easier to install than Cement Board. 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. If you preorder a special airline meal (e.g. Greenboard is the same as regular drywall. Once its cleaned, use caulk to seal all of the seams where the cement board meets the walls. . 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. Hardi is definitely a "thirsty" substrate but will work, even without a primer of RedGard. 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. 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. Keep in mind that most tile setters err on the side of caution and brush a waterproofing membrane on top of cement board when it is in wet areas like showers or tub surrounds. see Prop 65 WARNINGS. We waterproof the outside the hardiboard in 99% of the install with something like redgard. . Shower walls construction made easy with Kerdi-Board panels. - La Tuilerie Its essential to protect surrounding wall and floor surfaces from water or moisture damage that can occur in these areas. Once the wall is prepped, use a primer that is compatible with the KERDI membrane so that it will properly adhere to the wall. To line niche shelves, for instance. Is this overkill? The thickness of the tile is important, and should be known, but not because it changes the method of building. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'remodelormove_com-mobile-leaderboard-1','ezslot_24',166,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-mobile-leaderboard-1-0');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. We use a pump action garden sprayer and its usually dry by the time we clean the sprayer. It is a topical waterproofing layer that is put over the substrate to keep water from getting to the wood frame and nails. 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. Do you have any pictures? The cement board core itself is not waterproof, but it can withstand water without falling apart. Why unmodified thinset with kerdi? - qyvxl.dixiesewing.com Out of curiosity, why are any of you suggesting backerboard at all? A place where magic is studied and practiced? If a pipe or faucet ever leaks in the wall this will ruin your shower. Additionally, it is important to waterproof cement board before tiling, as the grout and tiles can help keep the board watertight. Prime first to create a flat, uniform surface that is free of dust, grease and other debris. Schluter-KERDI | Waterproofing (KERDI) | Schluter Yes, you should prime drywall before installing KERDI in order to ensure proper adhesion and a successful installation. Thanks. Then cement, sand and water are mixed together to a crumbly consistency and floated over the lath to form a flat surface. Then you can apply a thin layer of KERDI-FIX to the board, the membrane over top . She grew up surrounded by constant home improvement projects and owes most of what she knows to helping her dad renovate her childhood home. However, the answer you provided above suggests that the OP could omit a waterproof membrane, that I. There's a really great manual (with diagrams) that makes this all easier to understand. In order to determine which tile underlayment is right for your project, you need to know which issue youre trying to solve whether its preventing subfloor cracks from transferring to the tile, soundproofing, moisture protection, or providing more rigidity to the tile. One thing I do like fibercement (Hardie) for is when I need thin strips of cement board. The mortar does . Both Kerdi Board and cement board are designed to smooth out uneven spots on the installation surface, create an unbending layer that wont flex underfoot, and also provide a waterproof barrier. Continuing Education for Architects & Designers. Depending on factors such as room temperature, humidity, and ventilation in the area, this could take anywhere from 1 to 3 days. We also found that using a heavy rolling pin worked wonders for really setting the Kerdi. The Ditra uncoupling design is lightweight, durable, and minimizes the possibility of cracked tile and grout. The use of modified thinset adhesive could result in an inadequate bond and could lead to possible delamination. It is a fast process that is hard to mess up if you do it right. Kerdi Board vs. Cement Board: What Are The Major Differences? True cement board (Durck, Wonderboard) is my first choice as a tile or Kerdi backer. We apply the thinset the recommended trowel, can't remember what size off the top of my head, in small sections and by the time my husband hands my the piece of membrane the thinset is not skinned over but certainly dry. KERDI BOARD: Waterproof Your Shower in 1 Day - Home Repair Tutor This is often accomplished by filling any holes and cracks in the wall with appropriate spackling or patching material. http://www.schluter.com/schluter-us/en_US/Shower-System/KERDI-SHOWER-KIT/Schluter%C2%AE-KERDI-SHOWER-KIT/p/KERDI_SHOWER-KIT, We've added a "Necessary cookies only" option to the cookie consent popup. RedGard On Hardibacker Board. A good rule of thumb is 24 hours per inch of thickness, then one more day on top of that to be sure. Best Cement Boards for the Shower - The Spruce Make sure to use multiple coats, if necessary. 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. I usually use Durock. 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. 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. Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar must be used to construct all KERDI seams to ensure watertightperformance of the system. there should be a small gap between the backer board and the tub. Installation is simple- just trowel a layer of thin-set adhesive on the floor and embed the mat in it, then fill the cavities with thin-set. Applying a conventional cement backer board to such a structure is almost impossible. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Underlayment is designed to smooth out uneven areas of the subfloor and form a rigid layer that prevents the flooring from bending. Using modified thinset on KERDI can be tricky and in some cases, it can cause issues. Answer (1 of 3): Schluter recommends applying Kerdi over drywall for walls, however, my local building code will not permit this practice - the local building code requires cement backer on the walls of a shower enclosure, therefore, I have done this successfully many times. tripadvisor car rental tampa airport xnxx big tits; roommate questionnaire google form shadow of the dragon queen deluxe; cities where home prices are rising 2022 beachbody bodi block; mahogany tree seeds uses The 30-in. We don't expect people to master this and in fact I know maybe two guys in my area (live in big city) that could do this. It is easier to cut than cement board, it is mold resistant, and it has a built-in moisture barrier. 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? The shower is ready for tile. I can take a bit of it off the wall and roll it into a ball. While cement board may be the most common and widely-known tile substrate, Kerdi Board is giving it a run for its money. No bulges either, but definetly no thin spots.-Not paying attention to the direction of the comb. Too little, and the kerdi will never show you gray, no matter how you sweat. 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. BTW the older Kerdi thread referencedwas excellent. What type of thin-set mortar should I use when installing Schluter-KERDI?
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