I usually use Durock. Once the adhesive has been applied and has had time to properly cure, then the KERDI membrane can be applied to the wall. there should be a small gap between the backer board and the tub. Finally, use a roller or brush to ensure that the membrane is secure and has no wrinkles or air bubbles. To line niche shelves, for instance. Kerdi Board is suitable for a number of interior applications. Or will the Kerdi membrane (with seams taped with kerdi band) prevent each board from moving independently? When screwed to the framing, thin strips of cement board fracture more easily than thin strips of fiber-cement. However, if installed on drywall, it only protects one side. It fell right off? #3 This is a DIY site. rev2023.3.3.43278. That was not a fault of the Kerdi, or the installation. Cement board is readily available and relatively inexpensive (about $10 for a 3 x 5-ft. sheet). Je peux rejeter les cookies non essentiels en cliquant sur Grer mes prfrences . How did this project turn out? Additionally, you can use KERDI-BAND around corners, seams, and joints to help with a waterproof installation. Foam-core tile backing board has two big advantages over other backer boards. 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. 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? This liquid waterproofing solution does more than keep water away, it also promotes tile adhesion and prevents cracking. 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. Preparing drywall for KERDI membrane requires a few important steps to ensure a successful application. Out of curiosity, why are any of you suggesting backerboard at all? Once this is done, continue the installation by following the directions for the particular Kerdi product being used. 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. And for a more secure fit, you can also use screws. It is a pliable waterproofing membrane that also doubles as a vapor retarder. To learn more, see our tips on writing great answers. Ratings (91) (5) (91) (3 . Putting this stuff on walls is difficult and time . Using Kolmogorov complexity to measure difficulty of problems? Portland cement-based unmodified thin-set mortars are dependent on the presence of moisture for hydration in order to gain strength. Yes, Schluter membranes can go over cement board. Using modified thinset on KERDI can be tricky and in some cases, it can cause issues. x 60 in. 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). Personally, I like standard drywall. After roughly two days I would fill the corner with silicone. Why do small African island nations perform better than African continental nations, considering democracy and human development? The core isnt waterproof, but it can withstand getting wet without falling apart, so even if your waterproofing system leaks, the board will stay intact. 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. Cement board is the industry standard when it comes to tile substrates and the most preferred among professionals when installing porcelain or ceramic tile. 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 worked well - just like wallpapering. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? But you might be struggling to figure out what kind of paint to use on garage walls. ), Minimising the environmental effects of my dyson brain, Finite abelian groups with fewer automorphisms than a subgroup. I'm thirsty. Other mistakes I was making early on:-over working the thinset. Caulk the gap. vegan) just to try it, does this inconvenience the caterers and staff? Slap it up comb it out, leave every ridge tall and perfect. Step 3: Apply Thinset. In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. Allow the adhesive to cure for the amount of time recommended by the adhesives manufacturer. I have used kerdi, and I have applied it over cement board. What do you mean it doesn't adhere? It is a fast process that is hard to mess up if you do it right. Is this overkill? This will help to ensure that all drywall is completely covered. If he did the framing for the shower, then in order to measure for it correctly, he would need to know how thick the tile is so that he can avoid exactly this problem. No, that doesn't sound right. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Is a PhD visitor considered as a visiting scholar? We want that inside corner able to move. We sponge water onto the cement board. Let the mortar dry for 24 hours then test the shower. I will say that to is easier to put the membrane over drywall than cement board. 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. This means that even if your waterproofing system leaks, the cement board will remain intact. They are square. I hope you made the guy flood test his work prior to tiling the shower floor. I used this to seal a 3 1/2 by 6 1/2 foot shower with 7 foot walls. Installation; As the GoBoard is very lightweight, it becomes easy to . How should I transition between cement board floor and alcove tub? We use a pump action garden sprayer and its usually dry by the time we clean the sprayer. 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. WATCH HERE: https://www.youtube.com/watch?v=3TRLd2HYhbU&list=PLO47JMsdYGrkxM_ZkOc3lMnsVhTqj80bB#justdoityourself #lovingit #p. Once the wall is prepped, use a primer that is compatible with the KERDI membrane so that it will properly adhere to the wall. Allow the primer to dry completely before proceeding with the KERDI installation. You provide the pitch during the tile set. 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. We just went through a learning curve on the Kerdi and Hardi. DIYers on this forum seem to have nothing but problems with Hardi. Kerdi board, on the other hand, is an extruded polystyrene foam panel. It could take longer if the space is particularly wet or humid. ", Signed,Never Hung Kerdi A Day In Her Life. Prime first to create a flat, uniform surface that is free of dust, grease and other debris. Too little, and the kerdi will never show you gray, no matter how you sweat. KERDI was developed as a waterproofing membrane to be used in . That's the way us "Tile Guys" do it all the time. New England. Once you have determined the type of thinset, its important to also consider the weather conditions during installation. Building Panel: Price $ 119 00 $ 202 06 $ 279 00. There is definitely skill & planning required to doit right. I hang Kerdi on cement board and fibercement board all the time. How do you show the depth of a hole in a drawing? If you preorder a special airline meal (e.g. Hang the cement boar. 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? The grid lines on the surface are incredibly helpful for installation and making neat cuts. x 96 in. If you want a cement board, use Durock or Wonderboard. This will prevent water from entering from behind the membrane, and will provide a more secure waterproof layer. If you do not already have the hardi up, I recommend using real cement board (Hardi is a fiber-cement) or drywall. This creates a strong, waterproof tile backer that also functions as an uncoupling membrane. Step 6: Choosing the Next Tile. It installs with screws, then you tape the joints & screw holes and install your tile. Schluter-KERDI is a pliable, sheet-applied, bonded waterproof membrane and vapor retarder with limited crack-bridging capabilities. Without an underlayment, even the slightest movement of the subfloor can result in cracking of the tile and crumbling of the grout lines. 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. Also - use a good thinset. Cementboard sufficient to a tub surround is dirt cheap .vs. Cement board is the most common and widely-known backer board. If a pipe or faucet ever leaks in the wall this will ruin your shower. Additionally, all thin-set should be allowed to cure for 24 hours before tiles are installed. Step 7: Cut the Tile. 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. We tried soaking the cement board and applying the kerdi in small sections. When installation is done properly, Kerdi membrane offers a waterproof barrier that can protect the plywood below from moisture. Seams and joints should also be waterproofed and caulked to prevent water from seeping through. Make sure the floor is level in the shower. 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. 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)). It doesn't matter but you absolutely need to use both a substrate and a waterproofing membrane. You don't want to block off the end of the air chanel and trap half a sheet worth of air under there.-Not paying attention to the direction of my knife. We think it is the cement board (Durock) sucking the moisture out of the unmodified thinset. This is a very effective and popular method of installing tile, and one that ensures the tile doesnt crack. What precautions should I take installing tile on a backerboard in an area surrounded by cement? I always install it over cement board or backerboard, never over drywall, even blueboard or the mold resistant greenboard. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. Sloped Shower Tray KST1220/1525 - The Home Depot. It's not a matter of trusting the Kerdi. Rolling pin, good, now I can throw away my magnesium float.LOLCasey. This is a bit difficult to answer as it depends on the particular application for the floor system. When applying the primer, make sure to cover all surfaces thoroughly, as these will be completely covered by the KERDI membrane. However, a cement board is generally easier and less expensive to replace if a repair is needed. When it comes to using thinset with Schluter products, the Schluter-Systems website recommends using unmodified thin-set mortars specifically designed for use with Schluter membranes. Another advantage is that the polyisocyanurate core of foam boards is waterproof. The shower tray eliminates the need for a mortar bed. 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. . Kerdi membrane prevents water damage and mold development. Kerdi's systems are fairly reputable. 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. When installing KERDI with . 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. FRC board tends to be more moisture-resistant than gypsum board and is best suited for outdoor projects such as showers or tub surrounds. 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. 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. Properly waterproofing a shower area sharing a living room wall, Can I use cement accelerator to decrease setup time of modified thinset. Kerdi, a waterproofing membrane made of a special polyethylene fabric, should be allowed to completely dry prior to tiling. 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. With cement board as a substrate, the key is to ensure proper installation of the membrane. When I do another shower I'll use real cement board, not Hardi-board. I used to "trust" the Kerdi and drywall until I had a shower that the valve broke inside the wall cavity four years after being put in. 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. Is it suspicious or odd to stand by the gate of a GA airport watching the planes? I just a few weeks ago put kerdi on top of hardi-board in my shower and it was PAINFUL! Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. Using cement board and a sheet membrane . 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. The shower is ready for tile. It only takes a minute to sign up. An additional layer of sealant can also be applied on the seams for extra protection and water resistance. 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. 173 upvotes. A lot of folks like using cement board but it's heavy and requires a waterproofing membrane over it. . Can be cut to size easily using a utility knife. #4 You could be adding a good 1000 pounds to your install too. Can I install Kerdi board just on the walls of my shower and use a PVC membrane on the floor? We tried adding water to the thinset, we tried . 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. No bulges either, but definetly no thin spots.-Not paying attention to the direction of the comb. Following the instructions for the product being used and ensuring that all of the necessary steps are followed will help to ensure a successful installation. Greenboard is the same as regular drywall. 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. There is a product called Kerdiboard you might want to look into. Kerdi Membrane is a product of Schluter systems. 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. Tile can be installed directly over Kerdi-Board using the thinset method; For use with ceramic and natural stone tile; Return Policy; California residents. 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 I don't want to use the Ditra membrane product but rather tiles directly over the cement boards. Houzz Pro: One simple solution for contractors and design pros, surfer thanked Avanti Tile & Stone / Stonetech. Various products can be used to waterproof shower walls such as water-resistant drywall and cement backer boards. The product involves an extruded polystyrene foam panel, with specialized reinforcement materials on both sides. Cement board (cbu) is not waterproof, but is not damaged by being wet. Furthermore, if another trade, such as the shower glass installers, makes a mistake then you'll be . Think about movement. My understanding is that Schluter-Kerdi, being a sheet topical membrane, recommends just going with regular drywall instead of cement board but you can certainly use cement board as the substrate. ps, now that you don't need it anymore you can throw that useless cheap piece of crap magnesium float my way. Will be doing a bathroom gut and will be laying durock cement board over plywood sub floor. Properly waterproofed Hardie board should last for many years. When applying thin-set mortar, the manufacturers instructions should be followed closely. No, you do not need to install a vapor barrier, as Kerdi Board is the vapor barrier. Glass mat gypsum board is a better choice. Thanks Paul! Kerdi Board as a whole is much easier to install than Cement Board. The drywall's back side fails, and it's just as bad or worse than it was on the tile side. I posted a plea for help and Mongo and Bill both gave me good advice. However if installed on drywall it is only protecting one side. Finally, make sure to select a thinset that is appropriate for the job, check the manufacturers recommendation, and always follow the instructions on the product label. Installation. 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. I circled one area, but there are lots of these edges." - Lisa Jasper The Kerdi band should be smooth and flat - not wavy/ "3) there is no membrane of waterproofing on the hardboard across from the "wet wall" after 5 1/2 feet up. The perfect fold is tricky and many of my first steam showers where built without the sealed slip joint. Yes, Kerdi membrane can be installed over plywood. But there are downsides. If youre not careful, the boards can also leave behind abrasive sandy crumbs that can cause damage to your shower base or tub. the cost of the tile job. They are absorbed into the surface material and help keep moisture away from the substrate surface. Cement board comes both in 1/4-inch-thick and 1/2-inch-thick versions. Anyone who has done more than 1 shower shouldn't start without knowing that. The bag says Mapei floortile mortar, it was the only unmodified thinset at our hardware store. 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. Blocking should be constant across this area when openings are larger than your fist. Depending on factors such as room temperature, humidity, and ventilation in the area, this could take anywhere from 1 to 3 days. First Kerdi can be installed on drywall or cement board. The difference between the phonemes /p/ and /b/ in Japanese. Furthermore, if you're working in an older home KERDI-BOARD fits better than cement board in odd spaces. 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. After today's tutorial, you'll gain the confidence to transform your old bathroom into a new space. RedGard, on the other hand, is a liquid waterproofing membrane made by Custom Building Products. The foam core surrounded by synthetic cloth on both sides and adhered with resin glue is. We recommend our users to update the browser. 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. 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. Thanks to all for the feedback. The niche' intermediate shelf isn't actually attached, to enable specific placement for each unique tiling application. We also found that using a heavy rolling pin worked wonders for really setting the Kerdi. Aquadefense is approved by IAPMO for use as a shower pan liner, but be sure to check your local building codes, as some areas of the country still require the PVC liner. A mortar wall is better and can be customized easier. When it comes to selecting thinset for cement board, there are a few important factors to consider. Just wondering how effective is the tile on kerdi membrane vs the traditional cement backboard where tiles are glued directly to the drywall? I also used the Kerdi drain. I barely touch it with my hands before going to the tape knife. Wedi showers feature a pre-sloped base that is already installed. To create a watertight shower assembly, we installed Schluter's Kerdi membrane over the drywall, just as we would for tile.Write by:. Plus, most self-leveling formulas harden very fast, so you have to plan carefully so you can mix and pour quickly. It allows you to easily and quickly create tile-ready elements in bathtub surrounds and platforms, vanities, showers, shelving, and much more. rev2023.3.3.43278. Is it plausible for constructed languages to be used to affect thought and control or mold people towards desired outcomes? You can apply it on PVC, metal, slabs, walls, and floors. Ideally the DalSeal TS would fold into the gap between the wall and ceiling concrete board. I simply sponge off the excess. Mike Holmes uses backer on his show. I think it is engrained in me to do that so I forget to mention it. It also helped me to work in smaller sheets. You peeled it off? 120 sq feet including the floor. Can you remove tile from Kerdi membrane? Kerdi does admit that you can use cement board. For all the substrates listed in this Handbook (e.g., gypsum board, cement backerboard, etc. 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. 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. Project Type: Tile / Category: Bathroom. The curb doesn't have to be any wider than a 2x4. 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. What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. Its essential to protect surrounding wall and floor surfaces from water or moisture damage that can occur in these areas. . But that doesn't address your question, so it's just a comment, not an answer as such. 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. If there is no blocking behind the seam, i would just tape prior to installing the membrane, the thinset will fill the seam and embed the mesh. If you want to go to the extra effort of putting the membrane over drywall, there is no need to use greenboard. They can be installed on any type of support and can even be used to create partitions, with no structural support required. 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. Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. True cement board (Durck, Wonderboard) is my first choice as a tile or Kerdi backer. Sure, you can do it.just be sure to "spritz" or wet the hardi thoroughly before.it's pretty "thirsty.". Run a damp towel over the cement board surface to dust . If cement board had been used, most likely the damage would have been much less that what I have to deal with now. Politique d'Utilisation des Cookies de Houzz. It is a topical waterproofing layer that is put over the substrate to keep water from getting to the wood frame and nails. 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. This allows for future compression and an area at the corner where things are more forgiving. 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. Continuing Education for Architects & Designers. First Kerdi can be installed on drywall or cement board. Kerdi can even be installed over drywall. Your email address will not be published. ;). 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. And how do you keep too much water from interfering with the adhesion in the second scenario?Thanks!! BTW the older Kerdi thread referencedwas excellent. 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. ".1) is is okay to use kerdi board instead of ditra on the floor? Why do small African island nations perform better than African continental nations, considering democracy and human development? Let's start! It's a lightweight polystyrene board faced with Kerdi that comes in various thicknesses that you can use in place of drywall or cement board. Sheets of glass mat gypsum are made from water-resistant silicone-treated gypsum, reinforced on both sides by fiberglass mats. One thing I do like fibercement (Hardie) for is when I need thin strips of cement board. 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. The cement board can also become weakened and start to flake away when it absorbs moisture, causing ugly spots and patches to start appearing on the wall. Kerdi-Board panels allow the installer to prepare and create a broad range .
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