kerdi membrane over cement board kerdi membrane over cement board

Unlike cement boards, you can bend this material without it breaking. What do you mean it doesn't adhere? Once you have determined the type of thinset, its important to also consider the weather conditions during installation. The site is called floorelf.com. The mortar does . They are square. Just wondering how effective is the tile on kerdi membrane vs the traditional cement backboard where tiles are glued directly to the drywall? Cement board is a mineral-based board, usually 30 inches by 60 inches, that is used as a lower, dimensionally stable surface for installing ceramic tile, porcelain tile, or stonework. Kerdi membrane can be used on cement board, drywall, and, as you may have guessed- greenboard. Kerdi membrane over drywall in shower - qkfb.recidivazero.it Preparing drywall for KERDI membrane requires a few important steps to ensure a successful application. Jun 21, 2017. Needless to say, the drywall turned to mush. 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. Continuing Education for Architects & Designers. Fiber cement board is available in 1/4-inch and 1/2-inch thicknesses. Depending on factors such as room temperature, humidity, and ventilation in the area, this could take anywhere from 1 to 3 days. Sloped Shower Tray KST1220/1525 - The Home Depot. 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. Welcome to the site. ".1) is is okay to use kerdi board instead of ditra on the floor? Furthermore, if you're working in an older home KERDI-BOARD fits better than cement board in odd spaces. I ended up putting up a thin, skim-coat of thinset all over the hardi board, letting it dry, and then putting up the kerdi. Some being easier to work with than others. When doing so, it is important to ensure that the drywall surface is clean and free of dust, grease, and loose paint. Step 6: Choosing the Next Tile. It could take longer if the space is particularly wet or humid. 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? Contact us: 888-472-4588 To ensure that the Kerdi is completely dry prior to tiling, inspect the inside of the membrane for any signs of moisture or condensation. 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. Should I use Kerdi membrane or cement backerboard? (3ft-3in wide). After roughly two days I would fill the corner with silicone. This allows for future compression and an area at the corner where things are more forgiving. Why you use cement board? But a mortar bed does have advantages. I trust it and have never had a callback. Kerdi board, on the other hand, is an extruded polystyrene foam panel. Making statements based on opinion; back them up with references or personal experience. We mixed the thinset, it wasn't as smooth as the utube video, but it was close, and we gave it ten minutes. If youre not careful, the boards can also leave behind abrasive sandy crumbs that can cause damage to your shower base or tub. We want that inside corner able to move. HardieBacker with Hydrodefense instead of Kerdi Board? : r/DIY - reddit PROBLEM SOLVED for Tub Flange when Installing Cement Board and Tile. Once the primer is completely dry, use a roller or brush to apply a coat of your chosen KERDI membrane adhesive over the entire surface of the wall, overlapping the edges slightly for full coverage. . 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! Removing bathroom tile from cement backerboard, Transition from KERDI membrane backed, to not backed. This means that even if your waterproofing system leaks, the cement board will remain intact. How can I find out which sectors are used by files on NTFS? Required fields are marked *. I hang Kerdi on cement board and fibercement board all the time. Best substrate for kerdi membrane - nsbu.treviso-aug.it Yes, Schluter membranes can go over cement board. Yes, KERDI membrane will stick to cement board. Kerdi-Shower-T/-TS/-TT is a prefabricated sloped shower tray with integrated Kerdi waterproofing. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'remodelormove_com-narrow-sky-1','ezslot_27',168,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-narrow-sky-1-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'remodelormove_com-narrow-sky-1','ezslot_28',168,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-narrow-sky-1-0_1');.narrow-sky-1-multi-168{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:15px!important;margin-left:auto!important;margin-right:auto!important;margin-top:15px!important;max-width:100%!important;min-height:250px;min-width:250px;padding:0;text-align:center!important}Waterproofing should also be done on other areas in the shower as well such as the corners, window sills and other areas where water can easily accumulate. There's a really great manual (with diagrams) that makes this all easier to understand. Is a PhD visitor considered as a visiting scholar? Cement board is known to be very heavy and somewhat difficult to cut. If you want a cement board, use Durock or Wonderboard. And for a more secure fit, you can also use screws. Installation. Everyone knows brick and stucco, but what about fiber cement and metal? Seams and joints should also be waterproofed and caulked to prevent water from seeping through. 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. 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. Sure, you can do it.just be sure to "spritz" or wet the hardi thoroughly before.it's pretty "thirsty.". Cement board is the most common and widely-known backer board. Wedi Board vs Cement Board vs Kerdi Board - The Ultimate Home Living Blog We installed cement board on the walls, and today when we attempted to apply the Kerdi membrane we could not get it to adhere. Kerdi 3 ft. 3 in. How to install a kerdi membrane over cement backer board - Quora 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. An extra layer of thinset is then added to the surface of the cement board to adhere the tiles in place. KERDI BOARD: Waterproof Your Shower in 1 Day - Home Repair Tutor I've seen preferences regarding HardieBacker and the cement board products such as Wonder Board. What's the difference between a power rail and a signal line? Additionally, all thin-set mortars should be suitable for use in wet or feature depths of up to 1/8 inch. A successful tile installation largely depends on the substrate that the tile is attached to. Anyone who has done more than 1 shower shouldn't start without knowing that. 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. Slap it up comb it out, leave every ridge tall and perfect. Foam-core tile backing board has two big advantages over other backer boards. But there are downsides. A quality underlayment will also serve as a waterproof barrier between the subfloor and the tile surface. Both may be effective substrates, but Kerdi Board boasts significant advantages. However, if installed on drywall, it only protects one side. 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! You peeled it off? Step 7: Cut the Tile. @JimmyFix-it - You are right. When installing KERDI with unmodified thin-set mortar over particularly dry and porous substrates, it is recommended to wet the substrate first, in order to help prevent premature drying or skinning of the thin-set mortar. 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? Kerdi Board is suitable for a number of interior applications. They are designed to provide a waterproof, vapor-tight layer to the substrate, which in this case would be the cement board. RedGard On Hardibacker Board. How do you show the depth of a hole in a drawing? Using cement board and a sheet membrane . PROBLEM SOLVED for Tub Flange when Installing Cement Board - YouTube On the other hand, a Schlter system offers improved thermal insulation, which can help to reduce heating costs. While cement board may be the most common and widely-known tile substrate, Kerdi Board is giving it a run for its money. It may take more than 1 beer:). Kerdi, a waterproofing membrane made of a special polyethylene fabric, should be allowed to completely dry prior to tiling. Is it ok to fasten a shower surround to Schluter Kerdi curb? #2 - Your suggestion has plenty of merit though. Even the tiling subs have moved away from mortar walls because of the labor cost and lack of craftsmen in the industry. Thanks Paul! No, that doesn't sound right. What is a word for the arcane equivalent of a monastery? 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. Need help liner vs liquid membrane question. . 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. Out of curiosity, why are any of you suggesting backerboard at all? WATCH HERE: https://www.youtube.com/watch?v=3TRLd2HYhbU&list=PLO47JMsdYGrkxM_ZkOc3lMnsVhTqj80bB#justdoityourself #lovingit #p. BTW the older Kerdi thread referencedwas excellent. I'm thirsty. Additionally, the drywall should be primed with a latex primer before applying the Kerdi membrane. 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. Why is this the case? Finally, use a roller or brush to ensure that the membrane is secure and has no wrinkles or air bubbles. Anytime Mongo. Asking for help, clarification, or responding to other answers. It allows you to easily and quickly create tile-ready elements in bathtub surrounds and platforms, vanities, showers, shelving, and much more. This allows the cement to properly hydrate, resulting in a strong, dense bond coat. 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. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. Shouldn't take too long, maybe an hour or so. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The cement board needs to be clean, free of debris, and dry. The fastest method [for me and possibly other dilettants] is to stroke the knife at a diagonal to the comb marks, top down, center out, pushing all the air before you with short, overlapping strokes.-Thinset needs to be pretty darn wet: Needs to stay put when combed, but should be soft and shiney. FRC board tends to be more moisture-resistant than gypsum board and is best suited for outdoor projects such as showers or tub surrounds. 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. 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. 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. Yes, Hardie board needs to be waterproofed. We were using a 3/16 x 5/32 trowel, probably to small. However if installed on drywall it is only protecting one side. I imagine we could share some good stories. With that said, the key benefits of Kerdi Board include: While cement board may be the most common and widely-known tile substrate, Kerdi Board is giving it a run for its money. Kerdi board vs. Membrane vs. Other for Shower - DIY Home Improvement Forum Kerdi membrane is a waterproofing material that is designed to be used in wet areas such as bathrooms and showers before tiles are installed. A square foot of half-inch thick cement board weighs roughly 40 ounces, while the equivalent area of a Wedi board weighs about 75% less. To waterproof Hardie board, you should choose a quality sealer that is designed for use on cement-based sidings. 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. By: Author Olin Wade (Remodel or Move Stuff). . For the floor I make a dry mix mud base and then the Kerdi membrane. In normal residential use I wouldn't worry about it. The Kerdi is essentially replacing the backerboard. Putting this stuff on walls is difficult and time . It looks like you have Kerdi installed on the floor and not Kerdi Board. This is often accomplished by filling any holes and cracks in the wall with appropriate spackling or patching material. 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 . How to adhere edge of bullnose tile to drywall as trim for shower/tub surround. It costs more but it;s worth it for the ease of install IMO. 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. I can take a bit of it off the wall and roll it into a ball. You are telling someone "to have" an artistry that not only takes art skills, knowing how to mix mortar for different situations, and a good amount of practice. Various products can be used to waterproof shower walls such as water-resistant drywall and cement backer boards. This will help to extend its lifespan and make sure it looks its best for years to come. (3ft-3in wide)Or will the Kerdi membrane (with seams taped with kerdi band) prevent each board from moving . Install an Uncoupling Membrane Between Concrete and Tile. However, you do still have to take care to waterproof the seams and the fastener penetrations to create a waterproof assembly. A hundred times better to have too much before you comb than too little. This liquid waterproofing solution does more than keep water away, it also promotes tile adhesion and prevents cracking. 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. I will say that to is easier to put the membrane over drywall than cement board. Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. 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. Think about movement. 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. 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. Why is there a voltage on my HDMI and coaxial cables? What are the differences between "paperless drywall" and "cement board"? If you preorder a special airline meal (e.g. Once all that is completed and the Aquadefense has dried, you can install your tile with a polymer modified mortar meeting the ANSI requirements of A118.4 or A118.11. It's not a matter of trusting the Kerdi. rev2023.3.3.43278. 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. 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. 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? Additionally, a liquid water-resistant membrane should be applied over all surface areas before installation. If you want added info there's an old Kerdi thread here. Self-leveling underlayment has many of the same advantages as a dry-pack mortar bed but doesnt require as much skill to install. It is lightweight and made of expanded polystyrene. With Wedi products, the compound curves are easy to produce quickly. The problem is on the back side of the drywall, which is not protected. Je peux rejeter les cookies non essentiels en cliquant sur Grer mes prfrences . 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). This makes Kerdi Board suitable for a wide variety of interior applications, including kitchen countertops. This is a very effective and popular method of installing tile, and one that ensures the tile doesnt crack. 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). Tile Shower SurroundCement Backerboard Location? When I do another shower I'll use real cement board, not Hardi-board. Using Kolmogorov complexity to measure difficulty of problems? 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. There is definitely skill & planning required to doit right. is that because water doesn't really hit that area?" - Lisa Jasper That's pushing it but should be fine. Spacers are the next step. The big issue with cement board is that the thinset will skin over really quickly. #2. First, its super lightweight compared with the rest. We are no longer supporting IE (Internet Explorer) as we strive to provide site experiences for browsers that support new web standards and security practices. Kerdi can be installed first on drywall or cement board. And second, since it's foam, the board is super easy to cut with just a utility knife. 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. I also used the Kerdi drain. you should still water proof with a liquid membrane product like RedGuard. Firstly, it is important to ensure the wall is adequately prepared and that it is smooth, flat and free of defects. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. And how do you keep too much water from interfering with the adhesion in the second scenario?Thanks!! We think it is the cement board (Durock) sucking the moisture out of the unmodified thinset. Mike Holmes uses backer on his show. 4. Kerdi Board panels have a number of other advantages: they can be cut to size using an ordinary utility knife, can be glued or screwed into place, and are very lightweight. Like the example above. Find the website that's made specifically for you. Yes, it is possible to put Kerdi over regular drywall. 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. Sheets of glass mat gypsum are made from water-resistant silicone-treated gypsum, reinforced on both sides by fiberglass mats. . For all the substrates listed in this Handbook (e.g., gypsum board, cement backerboard, etc. Kerdi Board Vs. Cement Board (What's The Difference?) - Home Mindset