kerdi membrane over cement board

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I used this to seal a 3 1/2 by 6 1/2 foot shower with 7 foot walls. 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. Asking for help, clarification, or responding to other answers. One thing I do like fibercement (Hardie) for is when I need thin strips of cement board. Kerdi can even be installed over drywall. I always install it over cement board or backerboard, never over drywall, even blueboard or the mold resistant greenboard. 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 Given the complexity, its easy to see why even experienced tile setters avoid dry-pack mortar and use backer board instead when they can. 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. Let the mortar dry for 24 hours then test the shower. ;). Fiber cement board is available in 1/4-inch and 1/2-inch thicknesses. With cement board as a substrate, the key is to ensure proper installation of the membrane. This will help to ensure that all drywall is completely covered. Schluter Kerdi-Shower-T/-TS/-TT 48 in. The site is called floorelf.com. We are no longer supporting IE (Internet Explorer), Do not Sell or Share My Personal Information. Additionally, the drywall should be primed with a latex primer before applying the Kerdi membrane. The drywall's back side fails, and it's just as bad or worse than it was on the tile side. Kerdi-Board 1/2 in. x 48 in. x 96 in. Building Panel There is definitely skill & planning required to doit right. In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. We tried soaking the cement board and applying the kerdi in small sections. I agree that gypsum seems very questionable anywhere in the wet areas of a shower. #2. A mortar wall is better and can be customized easier. 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? Sledge hammers for the floor, that might take a bit of time. Plus, most self-leveling formulas harden very fast, so you have to plan carefully so you can mix and pour quickly. See the foam bench and the corners. This will help you achieve the best results and ensure the longevity of your project. Is it plausible for constructed languages to be used to affect thought and control or mold people towards desired outcomes? It fell right off? My floor tiles are 2" x 2"." - Lisa Jasper No - you can not use Kerdi Board on the floor. Furthermore, if you're working in an older home KERDI-BOARD fits better than cement board in odd spaces. 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. We just went through a learning curve on the Kerdi and Hardi. What is a word for the arcane equivalent of a monastery? Can be cut to size easily using a utility knife. (3ft-3in wide). About an argument in Famine, Affluence and Morality, Acidity of alcohols and basicity of amines. How to prep a shower for tile with Schluter Kerdi - TwoFeetFirst Finally, use a roller or brush to ensure that the membrane is secure and has no wrinkles or air bubbles. Kerdi membrane prevents water damage and mold development. 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? The tub flange can really be a pain in the butt when installing a tile tub surround. Using Kerdi Schlueter membrane with cement board. - Houzz Most of the entries in the NAME column of the output from lsof +D /tmp do not begin with /tmp. Schluter-KERDI is a pliable, sheet-applied, bonded waterproof membrane and vapor retarder with limited crack-bridging capabilities. Its essential to protect surrounding wall and floor surfaces from water or moisture damage that can occur in these areas. I can take a bit of it off the wall and roll it into a ball. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Your email address will not be published. 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. I want to mount a cast iron bathtub, but not pull down my 1905 plaster and lath. Once its applied, the last step is to follow up the waterproof coating with a waterproof sealant. If installing large format tiles (over 15"), be sure to give the Aquadefense at least 8 hours to cure first. 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. Calculating probabilities from d6 dice pool (Degenesis rules for botches and triggers). Such membranes typically come in a brush or a roller form and can help create a durable barrier against water infiltration. If you ensure that silicone goes in and that the thin-set and grout do not bind there you should be good to go. Furthermore, if another trade, such as the shower glass installers, makes a mistake then you'll be . Should I use Kerdi membrane or cement backerboard? It may take more than 1 beer:). KERDI features a modified polyethylene (PEVA) core with non-woven polypropylene on both sides to anchor the membrane in the thin-set mortar. link to How To Organize A Bathroom Closet. 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! (3ft-3in wide)Or will the Kerdi membrane (with seams taped with kerdi band) prevent each board from moving . ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. When I tried putting up the first sheets, which were only 36" x 39", and even though I had SOAKED the hardi, to the point water was pooling on the floor, the thinset was already drying before I got the Kerdi up, and I couldn't get it to adhere properly no matter how hard I tried. It could take longer if the space is particularly wet or humid. When installed, Kerdi Board creates a substrate that is level, flat, square, plumb, and dimensionally stable. Kerdi Board vs. Cement Board. Like the example above. liquid waterproofing (redgard) over durock cement board - bathroom Sloped Shower Tray KST1220/1525 - The Home Depot. Kerdi, a waterproofing membrane made of a special polyethylene fabric, should be allowed to completely dry prior to tiling. If so, that means breaking up the floor pan. KERDI BOARD: Waterproof Your Shower in 1 Day - Home Repair Tutor Both may be effective substrates, but Kerdi Board boasts significant advantages. Cement board is known to be very heavy and somewhat difficult to cut. 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. Sheets of glass mat gypsum are made from water-resistant silicone-treated gypsum, reinforced on both sides by fiberglass mats. Kerdi Membrane Installation (Step-by-Step Installation Guide) It installs with screws, then you tape the joints & screw holes and install your tile. 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. 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! It looks like you have Kerdi installed on the floor and not Kerdi Board. It doesn't matter but you absolutely need to use both a substrate and a waterproofing membrane. What are the differences between "paperless drywall" and "cement board"? Out of curiosity, why are any of you suggesting backerboard at all? Kerdi membrane over drywall in shower - qkfb.recidivazero.it Modified thinset adhesive is a premixed product that contains latex or acrylic components which make it quite a bit more flexible than regular thinset adhesive and therefore better suited to some applications. You have to seal every little hole in the floor so the underlayment doesnt seep into spaces below. 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. For the floor I make a dry mix mud base and then the Kerdi membrane. 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)). The Pros and Cons of Various Tile Backers | Family Handyman 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 imagine we could share some good stories. Waterproof showers are the trend today, so RedGard is an excellent alternative to cement boards that act as vapor barriers. #4 You could be adding a good 1000 pounds to your install too. Can you put Kerdi over cement board? - TipsFolder.com Kerdi-Shower-T/-TS/-TT is a prefabricated sloped shower tray with integrated Kerdi waterproofing. 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. rev2023.3.3.43278. Your email address will not be published. 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. 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. Re: Kerdi on shower curbs. Best substrate for kerdi membrane - nsbu.treviso-aug.it Kerdi Board is expensive, but I can justify it because it saves time, and it's a joy to use. This will ensure a strong bond between the KERDI membrane and the substrate. Why does the plumbing rough need to be moved? A lot of folks like using cement board but it's heavy and requires a waterproofing membrane over it. Step 2: Determine the room's center. 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. 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. 120 sq feet including the floor. They are square. 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. Well, DH said he had virtually no time to work with the stuff before it dried out, so he switched from my spritz bottle to a sponge. The cement board needs to be clean, free of debris, and dry. Once you have determined the type of thinset, its important to also consider the weather conditions during installation. Using self-leveling underlayment takes careful prep work. Good luck with your project. Why are physically impossible and logically impossible concepts considered separate in terms of probability? Here are the fundamentals of tile installation over cement board. The taping knife at a low angle makes an enormous difference, and I'm very grateful for that hint. Most cement-based thin-set mortars are suitable; however, it is important to check the manufacturers instructions to ensure that the product is approved for use with Schluter systems. The best answers are voted up and rise to the top, Not the answer you're looking for? Bathroom closets are often catch-alls for anything and everything remotely related to self-care. I also used a larger sized trowel than the one recommend by Schluter. . Schluter Kerdi 108 Sq Ft Waterproofing Membrane - amazon.com Bulk update symbol size units from mm to map units in rule-based symbology. Ready to join the 100,000+ homeowners matched with pros? If a pipe or faucet ever leaks in the wall this will ruin your shower. I appreciate your help and your quick response. KERDI was developed as a waterproofing membrane to be used in . I used 1/2 Hardibacker board over the studs and then used the Kerdi membrane over the Hardi. We tried soaking the cement board and applying the kerdi in small sections. I will say that to is easier to put the membrane over drywall than cement board. HardieBacker with Hydrodefense instead of Kerdi Board? : r/DIY - reddit Caulk the gap. Welcome to the site. It worked well - just like wallpapering. Cut the shower tray to size. The problem is on the back side of the drywall, which is not protected. taping and prepping cement board for tile - Home Improvement Forum This will help protect the cement board from water damage, and is often a specific type of coating designed for use with cement boards. We think it is the cement board (Durock) sucking the moisture out of the unmodified thinset. Why does drywall work in a Kerdi Shower? - Terry Love Plumbing Advice Using modified thinset on KERDI can be tricky and in some cases, it can cause issues. The 30-in. We also found that using a heavy rolling pin worked wonders for really setting the Kerdi. However, if installed on drywall, it only protects one side. How to follow the signal when reading the schematic? As such, many homeowners and professionals find themselves wondering whether Kerdi Board or cement board is the better tile substrate. Plus, if you use the mold and moisture resistant drywall, it will be extra insurance against mold. is that because water doesn't really hit that area?" - Lisa Jasper That's pushing it but should be fine. If you want added info there's an old Kerdi thread here. You troweled on thinset combing it out then pressed the Kerdi into place? What do you mean it doesn't adhere? Being a Los Angeles resident, Jessica spends a lot of her time looking for her next DIY project and sharing her love for home design. 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. Can you put Kerdi membrane over cement board? On the other hand, a Schlter system offers improved thermal insulation, which can help to reduce heating costs. These multifunctional tile substrate and building panels are thus perfect for creating bonded waterproofing assemblies with tile coverings. All it takes is the right preparation. Cement board, Wedi board, Kerdi board, Hardibacker, Densshield, Durock, Permabase, or Wonder board . I also used the Kerdi drain. Yes, you should prime drywall before installing KERDI in order to ensure proper adhesion and a successful installation. Yes, KERDI membrane will stick to cement board. First Kerdi can be installed on drywall or cement board. For the floor I make a dry mix mud base and then the Kerdi membrane. Whether or not you need a Kerdi membrane is a factor of use. 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. You are wise to use a cement board. She grew up surrounded by constant home improvement projects and owes most of what she knows to helping her dad renovate her childhood home. 3. 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? Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin? It also helped me to work in smaller sheets. Politique d'Utilisation des Cookies de Houzz. Modified thin-set mortars must dry for the polymers to coalesce and form a hard . Can You Put RedGard On HardieBacker Board? - Next Modern Home Waterproofing is an important aspect of any bathroom or wet-area installation. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? 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. Dean, our tile consultant, says glass mat backer board is his first choice due to the ease of installation, cost, and because his workers like it. Waterproofing cement board is relatively simple and there are several different waterproofing products available. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. To get the most protection from the cement board, it should be installed in a way that ensures it is waterproof, in addition to being secured properly with the right adhesive and screws. 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. The great thing about Kerdi Board is that it is lightweight and easier to maneuver. Any recommendations? Kerdi can be installed first on drywall or cement board. Properly waterproofing a shower area sharing a living room wall, Can I use cement accelerator to decrease setup time of modified thinset. It is a fast process that is hard to mess up if you do it right. Wedi Board vs Cement Board vs Kerdi Board - The Ultimate Home Living Blog The back side of the drywall fails and it is just as bad or worse than if it had an issue on the tile side. Here's how to get it right the first time, If you've got a steady hand, a few easy-to-find supplies and patience, you can install a tile backsplash in a kitchen or bathroom, Step 4 in swapping your tub for a sleek new shower: Pick your waterproofing materials and drain, and don't forget to test, Work with your contractors and installers to ensure a safe, stylish curb that keeps the water where it belongs, Get the benefits of a time-honored ritual without firing up the coals, thanks to easier-than-ever home steam systems, Landscape Architects & Landscape Designers, Outdoor Lighting & Audio/Visual Specialists, Out With the Old Tile: 8 Steps to Prep for Demolition, Convert Your Tub Space Into a Shower Waterproofing and Drainage, Steam Showers Bring a Beloved Spa Feature Home. Contact us: 888-472-4588 Press the Kerdi Membrane into the Thinset Mortar with firm, even pressure to achieve full mortar coverage. x 60 in. 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. If you want a cement board, use Durock or Wonderboard. GoBoard Vs. Kerdi For Your Shower: In-depth Comparison DensShield is one common brand. It works well, is what Schluter recommends and I've never had an issue with it. Well, I'm going to give you three different ways to seal the backer board at the tub flange. 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. The niche' intermediate shelf isn't actually attached, to enable specific placement for each unique tiling application. Additionally, all seams should be sealed with Kerdi Fix and covered with fleece. Making statements based on opinion; back them up with references or personal experience. Kerdi on shower curbs - JLC-Online Forums

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