kerdi membrane over cement boardgraphing linear inequalities worksheet

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. I've never had a failure. If you preorder a special airline meal (e.g. What changes do you suggest to make Bathroom looks more updated? 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. Foam-core tile backing board has two big advantages over other backer boards. When it comes to applying KERDI, however, it is advised to use a regular thinset that includes portland cement as its main component. We also found that using a heavy rolling pin worked wonders for really setting the Kerdi. DIYers on this forum seem to have nothing but problems with Hardi. One thing I do like fibercement (Hardie) for is when I need thin strips of cement board. 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. I simply sponge off the excess. Making statements based on opinion; back them up with references or personal experience. When it comes to tile underlayment, your options can be categorized into three main classifications, each suitable for different tiling circumstances: Although cement board is the most commonly used underlayment for tile, Kerdi board is growing in popularity as a multifunctional tile substrate. Kerdi Board vs. Cement Board. Now there's nothing particularly wrong with fiber-cementit's just not my first choice. Good luck with your project. Glass mat gypsum board is a better choice. Cement board, Wedi board, Kerdi board, Hardibacker, Densshield, Durock, Permabase, or Wonder board . 3. 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? Re: Kerdi on shower curbs. It is designed to form a waterproof layer between cement board and tiles, helping create a watertight installation. Why you use cement board? 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. Can be cut to size easily using a utility knife. Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. Is it ok to fasten a shower surround to Schluter Kerdi curb? It only takes a minute to sign up. We tried soaking the cement board and applying the kerdi in small sections. Underlayment is designed to smooth out uneven areas of the subfloor and form a rigid layer that prevents the flooring from bending. Building Panel: Price $ 119 00 $ 202 06 $ 279 00. It is a pliable waterproofing membrane that also doubles as a vapor retarder. While cement board is a reliable tile underlayment, it isnt completely waterproof only water-resistant. What is a word for the arcane equivalent of a monastery? The kerdi membrane will probably do the same, and its regularly installed over drywall which is probably less stable. Additionally, it is important to waterproof cement board before tiling, as the grout and tiles can help keep the board watertight. Step 6: Choosing the Next Tile. @DMoore- OK, I agree that with redguard it would be redundant. Cement board is readily available and relatively inexpensive (about $10 for a 3 x 5-ft. sheet). 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. Send us an email: , What type of thin-set mortar should I use when installing Schluter, Using a Prefabricated Shower Tray and Ramp. ;). @JimmyFix-it - You are right. It installs with screws, then you tape the joints & screw holes and install your tile. 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. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Will use the Schluter Shower system. When applying the thin-set, it should be applied in such a way that it fully fills any empty space between the Tile and Schluter product and is solid enough to support the weight of the tiles being installed. When installing KERDI with . This is the traditional tile backer. if you go with vapour barrier, then cement board. Think about movement. RedGard can be used on a wide range of interior and exterior surfaces. Will be replacing tub shower combination with tiled shower in my home. 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. There are many different types of underlayment to choose from, but they all serve the same purpose. Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin? If you ensure that silicone goes in and that the thin-set and grout do not bind there you should be good to go. In the worst case, it's OK to cut the Kerdi, remove the damaged section, scrape up the thinset from the areas, and set a new piece of Kerdi. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. I used 1/2 Hardibacker board over the studs and then used the Kerdi membrane over the Hardi. 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. In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. If you want to go to the extra effort of putting the membrane over drywall, there is no need to use greenboard. 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? 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. Cut the Kerdi membrane to size using a utility knife or scissors. The use of modified thinset adhesive could result in an inadequate bond and could lead to possible delamination. As such, many homeowners and professionals find themselves wondering whether Kerdi Board or cement board is the better tile substrate. Schulter Ditra is manufactured by Schluter Systems and is a 1/8 thick polyethylene uncoupling membrane that is specifically designed for tile installations. As a contractor, I have been using Kerdi since it came out. You are wise to use a cement board. Cement board is particularly vulnerable to water damage, so waterproofing can help protect it and help it last longer. It looks like you have Kerdi installed on the floor and not Kerdi Board. Hi David. We were using a 3/16 x 5/32 trowel, probably to small. 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. The mortar does . If you can paint a wall, you can use RedGard. The completed assembly takes the place of more traditional backer board when installed over 3/4-inch wood subfloors. x 96 in. In a perfect job, it will waterproof. When applying the primer, make sure to cover all surfaces thoroughly, as these will be completely covered by the KERDI membrane. Cement board is a bit better, but you need to spray either one before applying the mortar so that it doesn't "skin over" before you can get the Kerdi up. 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). Sheets of glass mat gypsum are made from water-resistant silicone-treated gypsum, reinforced on both sides by fiberglass mats. Can I install Kerdi board just on the walls of my shower and use a PVC membrane on the floor? Putting this stuff on walls is difficult and time . Schluter approves their waterproof Kerdi membrane over drywall. True cement board (Durck, Wonderboard) is my first choice as a tile or Kerdi backer. This will prevent water from entering from behind the membrane, and will provide a more secure waterproof layer. In my. We ended up sponging the Hardi and wetting and booking the Kerdi (a la wallpaper), and that made the installation go much smoother. You probably have to go to a big box store's special order desk or find a specialty tile supplier to find it. The cement board needs to be clean, free of debris, and dry. Gettin' a little delirious. Need help liner vs liquid membrane question. Run a damp towel over the cement board surface to dust . And how do you keep too much water from interfering with the adhesion in the second scenario?Thanks!! Kerdi board, on the other hand, is an extruded polystyrene foam panel. Using Kolmogorov complexity to measure difficulty of problems? Installation; As the GoBoard is very lightweight, it becomes easy to . RedGard, on the other hand, is a liquid waterproofing membrane made by Custom Building Products. . Mike Holmes uses backer on his show. A lot of folks like using cement board but it's heavy and requires a waterproofing membrane over it. The site is called floorelf.com. If any is found, wait a few more hours and then re-inspect. This feature makes building the base structure much easier and more cost . If cement board had been used, most likely the damage would have been much less that what I have to deal with now. It also features fleece webbing that allows for effective anchoring into thin-set mortar. Allow the primer to dry completely before proceeding with the KERDI installation. Install an Uncoupling Membrane Between Concrete and Tile. That's the way us "Tile Guys" do it all the time. Any recommendations? What are the differences between "paperless drywall" and "cement board"? Shouldn't take too long, maybe an hour or so. Yes, you need waterproofing behind shower tile. That would tell him where the edge of the framing needs to be. We waterproof the outside the hardiboard in 99% of the install with something like redgard. However, the answer you provided above suggests that the OP could omit a waterproof membrane, that I. Houzz Pro: One simple solution for contractors and design pros, surfer thanked Avanti Tile & Stone / Stonetech. Properly waterproofing a shower area sharing a living room wall, Can I use cement accelerator to decrease setup time of modified thinset. 173 upvotes. By: Author Olin Wade (Remodel or Move Stuff). 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. Finally, use a roller or brush to ensure that the membrane is secure and has no wrinkles or air bubbles. Cement board is the most common and widely-known backer board. We are DIYers who have already remodeled one bathroom successfully, but this is our first time using The Schluter shower system. The grid lines on the surface are incredibly helpful for installation and making neat cuts. How should I transition between cement board floor and alcove tub? Step 3: Apply Thinset. If you want a cement board, use Durock or Wonderboard. Let's start! A good rule of thumb is 24 hours per inch of thickness, then one more day on top of that to be sure. the cost of the tile job. PROBLEM SOLVED for Tub Flange when Installing Cement Board and Tile. 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. 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. Waterproofing is an important aspect of any bathroom or wet-area installation. That was not a fault of the Kerdi, or the installation. Slap it up comb it out, leave every ridge tall and perfect. Too little, and the kerdi will never show you gray, no matter how you sweat. Yes, KERDI membrane will stick to cement board. is the contractor creating a waterproof schluter-kerdi shower? Why does the plumbing rough need to be moved? Kerdi board is a kind of waterproofer because these kinds of boards are made of XPS foam. Look at it this way; Withe Kerdi, you either trust it or you don't. modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. Important to overlap seams in a shingle method. You troweled on thinset combing it out then pressed the Kerdi into place? Kerdi's systems are fairly reputable. 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. To properly seal a cement board for a shower, its important to first properly prepare the surface. If youre not careful, the boards can also leave behind abrasive sandy crumbs that can cause damage to your shower base or tub. I don't want to use the Ditra membrane product but rather tiles directly over the cement boards. I'm guessing he put a 2x6 across for the curb? Kerdi can even be installed over drywall. Press the Kerdi Membrane into the Thinset Mortar with firm, even pressure to achieve full mortar coverage. No, you do not need to install a vapor barrier, as Kerdi Board is the vapor barrier. Various products can be used to waterproof shower walls such as water-resistant drywall and cement backer boards. Sloped Shower Tray KST1220/1525 - The Home Depot. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Here is a video off the Schluter-Kerdi website that describes how to apply the waterproof membrane on top of the substrate (gypsum board in this case): http://www.schluter.com/schluter-us/en_US/Shower-System/KERDI-SHOWER-KIT/Schluter%C2%AE-KERDI-SHOWER-KIT/p/KERDI_SHOWER-KIT. Why do small African island nations perform better than African continental nations, considering democracy and human development? Keep in mind, that, just to be safe, most professionals choose to install a waterproofing membrane on top of the cement board when installing in wet locations like tub surrounds or showers. I also used the Kerdi drain. . I always install it over cement board or backerboard, never over drywall, even blueboard or the mold resistant greenboard. All it takes is the right preparation. This flexible polyethylene layer is easy to install and can protect the tile from both cracking and moisture. KERDI was developed as a waterproofing membrane to be used in . Recovering from a blunder I made while emailing a professor, Minimising the environmental effects of my dyson brain. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? Will use the Schluter Shower system. There are numerous ways to do this. Not to mention, its warrantied by Schluter, giving you the ultimate peace of mind. 120 sq feet including the floor. All shower/tub areas should have concrete board (I prefer hardiboard). Fiber cement board is a variation of cement board that is made from compressed cement and sand and reinforced with wood fibers throughout. Asking for help, clarification, or responding to other answers. builder, anti-builder, rebuilder -- Retired Moderator. 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. This liquid waterproofing solution does more than keep water away, it also promotes tile adhesion and prevents cracking. Is a PhD visitor considered as a visiting scholar? What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? Yes, Kerdi membrane can be installed over plywood. Depending on factors such as room temperature, humidity, and ventilation in the area, this could take anywhere from 1 to 3 days. 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. Additionally, all thin-set should be allowed to cure for 24 hours before tiles are installed. Also - use a good thinset. On a vertical surface, very little moisture . Self-leveling underlayment has many of the same advantages as a dry-pack mortar bed but doesnt require as much skill to install. The surface of Wedi is perfect for bonding. 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. As fiber cement board is similar to regular cement board, it makes sense to choose the one that is cheaper or more readily available. If a pipe or faucet ever leaks in the wall this will ruin your shower. LONDON. Can I put Kerdi board over drywall? I can take a bit of it off the wall and roll it into a ball. Thanks Paul! ".1) is is okay to use kerdi board instead of ditra on the floor? 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. Find the website that's made specifically for you. However if installed on drywall it is only protecting one side. Kerdi Membrane is a product of Schluter systems. They can be installed on any type of support and can even be used to create partitions, with no structural support required. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Step 4: Place the Tile. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. The best answers are voted up and rise to the top, Not the answer you're looking for? If you do not already have the hardi up, I recommend using real cement board (Hardi is a fiber-cement) or drywall. The product involves an extruded polystyrene foam panel, with specialized reinforcement materials on both sides. Then you can apply a thin layer of KERDI-FIX to the board, the membrane over top . Once this is done, continue the installation by following the directions for the particular Kerdi product being used. Contact us: 888-472-4588 Drywall under Kerdi would have been a better choice. 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. Modified thin-set mortars must dry for the polymers to coalesce and form a hard . While cement board may be the most common and widely-known tile substrate, Kerdi Board is giving it a run for its money. There is no cutting or fitting of boards, and a mortar bed is good for leveling and flattening uneven or out-of-level floors, which are common in old houses. An additional layer of sealant can also be applied on the seams for extra protection and water resistance. Sure, you can do it.just be sure to "spritz" or wet the hardi thoroughly before.it's pretty "thirsty.". The Schlter system tends to be more durable than a cement board, but it also depends on the particular application and the weather. The 30-in. No bulges either, but definetly no thin spots.-Not paying attention to the direction of the comb. Jun 21, 2017. To waterproof Hardie board, you should choose a quality sealer that is designed for use on cement-based sidings. Preparing drywall for KERDI membrane requires a few important steps to ensure a successful application. 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. I appreciate your help and your quick response. 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. Learn more about Stack Overflow the company, and our products. How do you show the depth of a hole in a drawing? For the floor, he should've put a mortar bed, then a membrane that goes over the curb, then another mortar bed.

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kerdi membrane over cement board
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