Cement board is readily available and relatively inexpensive (about $10 for a 3 x 5-ft. sheet). 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 boards come in three-foot by five-foot and four-foot by eight-foot panels, sized for efficient use in bathrooms. Step 6: Choosing the Next Tile. Think about movement. I'm thirsty. FRC board tends to be more moisture-resistant than gypsum board and is best suited for outdoor projects such as showers or tub surrounds. On top of that, fiber cement board is even more brittle than standard cement board, so you have to be extra careful to keep screws at least an inch from the edge to avoid breaking the board. How to adhere edge of bullnose tile to drywall as trim for shower/tub surround. . Like the example above. 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. Using cement board and a sheet membrane . Finally, use a roller or brush to ensure that the membrane is secure and has no wrinkles or air bubbles. This will help to ensure that all drywall is completely covered. . Following these steps will help ensure that your shower space is properly sealed, and thus that the cement board is well protected from moisture. Once its cleaned, use caulk to seal all of the seams where the cement board meets the walls. First, felt paper is stapled to the floor and covered with expanded metal lath. Why you use cement board? Most of the entries in the NAME column of the output from lsof +D /tmp do not begin with /tmp. 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. Shouldn't take too long, maybe an hour or so. In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. On the other hand, a Schlter system offers improved thermal insulation, which can help to reduce heating costs. Modified vs. Unmodified Mortar With Kerdi Membranes 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. 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. I've seen preferences regarding HardieBacker and the cement board products such as Wonder Board. Do you have any pictures? We are no longer supporting IE (Internet Explorer), Do not Sell or Share My Personal Information. 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. 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. Yup! 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. Kerdi can even be installed over drywall. Cementboard sufficient to a tub surround is dirt cheap .vs. Install an Uncoupling Membrane Between Concrete and Tile. I trust it and have never had a callback. 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. Tile can be installed directly over Kerdi-Board using the thinset method; For use with ceramic and natural stone tile; Return Policy; California residents. The shower tray eliminates the need for a mortar bed. Preparing drywall for KERDI membrane requires a few important steps to ensure a successful application. Kerdi really offers very little advantage over hardiboard plus membrane. To create a watertight shower assembly, we installed Schluter's Kerdi membrane over the drywall, just as we would for tile.Write by:. 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. It is easier to cut than cement board, it is mold resistant, and it has a built-in moisture barrier. This is confusing since Kerdi Board has no Kerdi on it. Kerdi Questions and Answers - Kennedy Kitchens & Baths kerdi membrane over osb Asking for help, clarification, or responding to other answers. Thanks for contributing an answer to Home Improvement Stack Exchange! We installed cement board on the walls, and today when we attempted to apply the Kerdi membrane we could not get it to adhere. Liquid membrane over cement board | Terry Love Plumbing Advice document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Your email address will not be published. A mortar wall is better and can be customized easier. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? All it takes is the right preparation. #4 You could be adding a good 1000 pounds to your install too. Ceramic and porcelain tile, more than almost any other surface material, need a stable . you should still water proof with a liquid membrane product like RedGuard. x 5-ft. and 3 x 5-ft. sheets of cement board are sized for efficient use around bathtubs and showers. Schluter Ditra VS Cement Board (Which is better?) 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. taping and prepping cement board for tile - Home Improvement Forum Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Prime first to create a flat, uniform surface that is free of dust, grease and other debris. But you might be struggling to figure out what kind of paint to use on garage walls. Thanks. Once youre sure that the membrane is completely dry, you can then move forward with tiling. Your Get free, zero-commitment quotes from pro contractors near you. One of the major benefits of opting for Kerdi Board over cement board is the ease of installation. A.Sean Gerolimatos, technical services manager for Schluter Systems, responds: With a few exceptions, unmodified thinset mortar is required for setting ceramic and stone tile over Kerdi membranes (800/472-4588, www.schluter.com ), as well as for bonding overlapped seams and connections to Kerdi drains. The product involves an extruded polystyrene foam panel, with specialized reinforcement materials on both sides. There are numerous ways to do this. Kerdi board is a kind of waterproofer because these kinds of boards are made of XPS foam. New England. But I did want to understand the cost breakdown as the walls then become WAY more expensive than it would be with Redguard. And how do you keep too much water from interfering with the adhesion in the second scenario?Thanks!! Because it can let some moisture wick through it, you have two choices: put a moisture barrier behind it to protect the structure, or, waterproof the front of it. Required fields are marked *. Additionally, all thin-set should be allowed to cure for 24 hours before tiles are installed. 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. Houzz Pro: One simple solution for contractors and design pros, surfer thanked Avanti Tile & Stone / Stonetech. All shower/tub areas should have concrete board (I prefer hardiboard). Waterproof showers are the trend today, so RedGard is an excellent alternative to cement boards that act as vapor barriers. If installing large format tiles (over 15"), be sure to give the Aquadefense at least 8 hours to cure first. Let's start! What to use to flatten and prep wall before installing Schluter Kerdi membrane for tiling? Sloped Shower Tray KST1220/1525 - The Home Depot. Yes, you need waterproofing behind shower tile. In jobsite conditions and over a long time, who knows. ".1) is is okay to use kerdi board instead of ditra on the floor? is that because water doesn't really hit that area?" - Lisa Jasper That's pushing it but should be fine. Fixing that is not that easy though. . Since KERDI is impervious, it does not deprive the mortar of its moisture. It looks like Kerdi membrane is ~$2/sqft ($200 for a 108sqft roll) and kerdi board is $3.7/sqft ($115 for a 4x8 sheet (Lowes)). Schluter-KERDI is a pliable, sheet-applied, bonded waterproof membrane and vapor retarder with limited crack-bridging capabilities. builder, anti-builder, rebuilder -- Retired Moderator. Probably the simplest way is to caulk the gap with 100% silicone or a urethane sealant. 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 tried adding water to the thinset, we tried using a larger notch trowel, but nothing seems to make the Kerdi stick. If you can paint a wall, you can use RedGard. x 48 in. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I used this to seal a 3 1/2 by 6 1/2 foot shower with 7 foot walls. Can You Put RedGard On HardieBacker Board? - Next Modern Home Kerdi 3 ft. 3 in. Je peux rejeter les cookies non essentiels en cliquant sur Grer mes prfrences . RedGard can be used on a wide range of interior and exterior surfaces. Kerdi-Board panels allow the installer to prepare and create a broad range . #3 This is a DIY site. (3ft-3in wide). 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. Any recommendations? Additionally, all thin-set mortars should be suitable for use in wet or feature depths of up to 1/8 inch. Hi David. Kerdi Membrane not sticking to cement board - John Bridge 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. This will help to extend its lifespan and make sure it looks its best for years to come. Kerdi does admit that you can use cement board. 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. Run a damp towel over the cement board surface to dust . It costs more but it;s worth it for the ease of install IMO. The taping knife at a low angle makes an enormous difference, and I'm very grateful for that hint. Too little, and the kerdi will never show you gray, no matter how you sweat. When cleaning thinset off of Schluter membranes, the manufacturer recommends using a wet sponge and taking care to avoid any scoring or inconsistencies on the surface of the membrane. 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. I can take a bit of it off the wall and roll it into a ball. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. We think it is the cement board (Durock) sucking the moisture out of the unmodified thinset. It's still applied to cement board. Then cement, sand and water are mixed together to a crumbly consistency and floated over the lath to form a flat surface. For all the substrates listed in this Handbook (e.g., gypsum board, cement backerboard, etc. Kerdi membrane over drywall in shower - qkfb.recidivazero.it A good rule of thumb is 24 hours per inch of thickness, then one more day on top of that to be sure. My idea is to block in and install the tub in the existing corner, erect the new wet wall, and use hardi-backer to shim the wall out over the tub flange, then apply kerdi over the whole thing.Does kerdi take offense at being installed over hardi? 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. They are absorbed into the surface material and help keep moisture away from the substrate surface. Kerdi is also used as shower lining, as required in IRC Section P2709.2 and IPC Section 417.5.2, over concrete, mortar, tile backerboard, expanded polystyrene foam board, prefabricated polystyrene shower trays, curb and ramp, gypsum board and masonry substrates." So, you can choose what board you want in your shower when using Kerdi. We are still most comfortable with full plumber's pan over the curb, including glue-on preformed corners, and also a second layer (usually Kerdi but can be paint-on) on top of CBU wrap over curb. Cement board comes both in 1/4-inch-thick and 1/2-inch-thick versions. The drywall's back side fails, and it's just as bad or worse than it was on the tile side. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. Schluter Kerdi 108 Sq Ft Waterproofing Membrane - amazon.com Connect and share knowledge within a single location that is structured and easy to search. Once the wall is prepped, use a primer that is compatible with the KERDI membrane so that it will properly adhere to the wall. Thanks to Mongo's earlier post, we knew we'd have to spritz the Hardi -- but found that even that wasn't quite enough. When installation is done properly, Kerdi membrane offers a waterproof barrier that can protect the plywood below from moisture. Also - use a good thinset. How to Install Kerdi Membrane - YouTube 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 Sledge hammers for the floor, that might take a bit of time. Kerdi Board is suitable for a number of interior applications. Why unmodified thinset with kerdi? - qyvxl.dixiesewing.com :/. Rolling pin, good, now I can throw away my magnesium float.LOLCasey. Set ceramic and stone tile over the KERDI membrane with unmodified thin-set mortar, including large format tiles. x 33 ft. Waterproofing Membrane: Kerdi-Board 1/2 in. 120 sq feet including the floor. LONDON. 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. There is a product called Kerdiboard you might want to look into. "..2) the kerdi band isn't stuck flat -- the edges in some spots are wavy. This will ensure a strong bond between the KERDI membrane and the substrate. 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. Or will the Kerdi membrane (with seams taped with kerdi band) prevent each board from moving independently? The surface of Wedi is perfect for bonding. And second, since it's foam, the board is super easy to cut with just a utility knife. Firstly, it is important to ensure the wall is adequately prepared and that it is smooth, flat and free of defects. This allows the cement to properly hydrate, resulting in To ensure the floor is clean, wipe it with a wet sponge. Should I use Kerdi membrane or cement backerboard? 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. ! To ensure that the Kerdi is completely dry prior to tiling, inspect the inside of the membrane for any signs of moisture or condensation. 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. liquid waterproofing (redgard) over durock cement board - bathroom 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. It is important to seal any imperfections in the drywall to ensure a long-lasting installation and to minimize water infiltration. 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 . Schluter Kerdi 108 Sq Ft Waterproofing Membrane - amazon.com #1 - Backer board has nothing to do with HD or any other big box. Recovering from a blunder I made while emailing a professor, Minimising the environmental effects of my dyson brain. What type of thin-set mortar should I use when installing Schluter-KERDI? In general, the Schlter system is typically more expensive than a cement board, and some people may find this an attractive option for its long lasting, easy to maintain qualities. Without an underlayment, even the slightest movement of the subfloor can result in cracking of the tile and crumbling of the grout lines. x 96 in. As a contractor, I have been using Kerdi since it came out. Good luck with your project. By the time you switch from the RG application to the Kerdi installation, it should be dry. When screwed to the framing, thin strips of cement board fracture more easily than thin strips of fiber-cement. Why do you think each board should be able to move at all let alone independently? If so, that means breaking up the floor pan. They are available in thicknesses of 3/16, 3/8, 1/2, 3/4, 1, 1-1/2, and 2 (5, 9, 12.5, 19, 25, 38, and 50 mm). Water-resistant gypsum board, or green board, was used in the past as a tile backer but is no longer recommended, mainly because better products are available. This will help you achieve the best results and ensure the longevity of your project. Kerdi, a waterproofing membrane made of a special polyethylene fabric, should be allowed to completely dry prior to tiling. En cliquant sur Accepter , j'accepte l'utilisation des cookies telle qu'elle est dcrite plus en dtail dans la Politique d'Utilisation des Cookies de Houzz. Should I use Kerdi membrane or cement backerboard? PROBLEM SOLVED for Tub Flange when Installing Cement Board - YouTube We ended up sponging the Hardi and wetting and booking the Kerdi (a la wallpaper), and that made the installation go much smoother. How do I connect these two faces together? Cement board sucks up the moisture and as a result, the kerdi doesn't always stick as well to cement board. Install the Schluter Kerdi membrane over the backer board using the correct mortar. if you go with vapour barrier, then cement board. that's home depot homeowner installation method. We think it is the cement board (Durock) sucking the moisture out of the unmodified thinset. Look at it this way; Withe Kerdi, you either trust it or you don't. Problem with very thick cement board/ tile/bullnose edge, Steam Shower Slip Joint Detail - The secret is in the boarding stage. 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. 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. If you are laying tile on floors that are wavy or out of level, self-leveling underlayment is a great solution. You are wise to use a cement board. Self-leveling underlayment has many of the same advantages as a dry-pack mortar bed but doesnt require as much skill to install. Not to mention, its warrantied by Schluter, giving you the ultimate peace of mind. This will ensure that the coating sticks to the cement board. 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. I want to mount a cast iron bathtub, but not pull down my 1905 plaster and lath. 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. Kerdi Membrane Over Plywood ThePlywood.com I think it is engrained in me to do that so I forget to mention it. This flexible polyethylene layer is easy to install and can protect the tile from both cracking and moisture. You peeled it off? Do new devs get fired if they can't solve a certain bug? Yes. Continuing Education for Architects & Designers. Ultimately, the decision between a Schlter system or a cement board comes down to the particular application and the goals the user has for the floor system. Once all areas have been properly waterproofed, the walls can be tiled and grouted to create a waterproof surface. Additionally, if the cement board isnt waterproof, it can also cause mold and mildew issues, as well as dry wall damage from the moisture seeping through. This creates a strong, waterproof tile backer that also functions as an uncoupling membrane. Everyone knows brick and stucco, but what about fiber cement and metal? How can I find out which sectors are used by files on NTFS? We tried soaking the cement board and applying the kerdi in small sections. It only takes a minute to sign up. The grid lines on the surface are incredibly helpful for installation and making neat cuts. The great thing about Kerdi Board is that it is lightweight and easier to maneuver. The waterproof membrane isn't a substitute for the substrate. 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. It worked well - just like wallpapering. 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. More waste, yes, but I think you have to have a LOT of practice to hang those huge sheets like mongo does. 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. Using Kolmogorov complexity to measure difficulty of problems? Why are physically impossible and logically impossible concepts considered separate in terms of probability? Kerdi board, on the other hand, is an extruded polystyrene foam panel. With cement board as a substrate, the key is to ensure proper installation of the membrane. @JimmyFix-it - You are right. The thin-set mortar should be mixed to a fairly dry consistency and then spread on the surface with a 1/4 inch square notch trowel. When having to put it up on the wall or measure it for size, you will find that you can get the exact measurements you need without much trouble. Both may be effective substrates, but Kerdi Board boasts significant advantages. The best answers are voted up and rise to the top, Not the answer you're looking for? link to What Kind Of Paint For Garage Walls? Can you remove tile from Kerdi membrane? Will add it in. You probably have to go to a big box store's special order desk or find a specialty tile supplier to find it. Furthermore, if another trade, such as the shower glass installers, makes a mistake then you'll be .
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