How to install a kerdi membrane over cement backer board - Quora Cement board and grout are not water proof, if there's Kerdi no moisture is ever going to be able to get behind it. However, you do still have to take care to waterproof the seams and the fastener penetrations to create a waterproof assembly. Schluter Kerdi 108 Sq Ft Waterproofing Membrane - amazon.com As such, many homeowners and professionals find themselves wondering whether Kerdi Board or cement board is the better tile substrate. The Kerdi-Line prefab pans and drains make me feel way more comfortable with the waterproofing. Is it ok to fasten a shower surround to Schluter Kerdi curb? In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. This thread is 9 years old and it's the Hardi board that's thirsty not the Kerdi. Hardie board is a cement-based siding product that is water-resistant, but not waterproof. A mortar wall is better and can be customized easier. 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? What are the differences between "paperless drywall" and "cement board"? On the other hand, a Schlter system offers improved thermal insulation, which can help to reduce heating costs. 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. As a contractor, I have been using Kerdi since it came out. Other mistakes I was making early on:-over working the thinset. I've never had a failure. Kerdi is not a user friendly product, and when you shrink your working time down it is downright stressful. 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. Hardie board is thirsty, but that's way too fast. To line niche shelves, for instance. 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. Any competent tile contractor would float the wall in mortar giving you a stronger, level, perfectly flat, and square surface to properly install tile. What I would be most scared off is the fact that no inside or outside corners appear to have been used. . Make sure to use multiple coats, if necessary. It costs more but it;s worth it for the ease of install IMO. Additionally, all thin-set should be allowed to cure for 24 hours before tiles are installed. 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. ), Minimising the environmental effects of my dyson brain, Finite abelian groups with fewer automorphisms than a subgroup. BTW the older Kerdi thread referencedwas excellent. 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. Run a damp towel over the cement board surface to dust . 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. Furthermore, if another trade, such as the shower glass installers, makes a mistake then you'll be . We like that the Kerdi membrane material installs easily over almost any substrate, including standard wallboard. And by 'booking the Kerdi' I mean we put it in the bathtub, sprayed it with the handshower, then booked it (just like wallpaper). 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 done according to manufacturers instructions, it will seal nicely. 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. If you want a cement board, use Durock or Wonderboard. The Kerdi is essentially replacing the backerboard. I still wet the walls first. 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. Since KERDI is impervious, it does not deprive the mortar of its moisture. Houzz Pro: One simple solution for contractors and design pros, surfer thanked Avanti Tile & Stone / Stonetech. Thanks for contributing an answer to Home Improvement Stack Exchange! Kerdi Membrane Over Greenboard (Is It Recommended?) A lot of folks like using cement board but it's heavy and requires a waterproofing membrane over it. Kerdi Board vs. Cement Board. We installed cement board on the walls, and today when we attempted to apply the Kerdi membrane we could not get it to adhere. Schluter-KERDI | Waterproofing (KERDI) | Schluter Additionally, a liquid water-resistant membrane should be applied over all surface areas before installation. 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. KERDI BOARD: Waterproof Your Shower in 1 Day - Home Repair Tutor 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. No, you do not need to install a vapor barrier, as Kerdi Board is the vapor barrier. Yes, Kerdi membrane can be installed over plywood. To prevent those movements from transferring to the tile floor, consider installing an uncoupling membrane between the concrete and tile surfaces. I think it is engrained in me to do that so I forget to mention it. 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. If you ensure that silicone goes in and that the thin-set and grout do not bind there you should be good to go. Both may be effective substrates, but Kerdi Board boasts significant advantages. 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. The Pros and Cons of Various Tile Backers | Family Handyman To properly seal a cement board for a shower, its important to first properly prepare the surface. For indoor projects and gypsum board, thinset with a latex acrylic modifier is ideal. Some being easier to work with than others. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. This allows the cement to properly hydrate, resulting in To ensure the floor is clean, wipe it with a wet sponge. We mixed the thinset, it wasn't as smooth as the utube video, but it was close, and we gave it ten minutes. This will help to ensure that all drywall is completely covered. 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. Step 7: Cut the Tile. Yes, you should prime drywall before installing KERDI in order to ensure proper adhesion and a successful installation. 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. Most of the entries in the NAME column of the output from lsof +D /tmp do not begin with /tmp. Why do small African island nations perform better than African continental nations, considering democracy and human development? The product involves an extruded polystyrene foam panel, with specialized reinforcement materials on both sides. link to What Kind Of Paint For Garage Walls? 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. Kerdi does admit that you can use cement board. Hi.I have a unique situation. Are there tables of wastage rates for different fruit and veg? 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. Set ceramic and stone tile over the KERDI membrane with unmodified thin-set mortar, including large format tiles. Kerdi membrane prevents water damage and mold development. If youre not careful, the boards can also leave behind abrasive sandy crumbs that can cause damage to your shower base or tub. In jobsite conditions and over a long time, who knows. Step 6: Choosing the Next Tile. Do new devs get fired if they can't solve a certain bug? x 33 ft. Waterproofing Membrane: Kerdi-Board 1/2 in. 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. Ideally the DalSeal TS would fold into the gap between the wall and ceiling concrete board. The grid lines on the surface are incredibly helpful for installation and making neat cuts. I usually use Durock. Finally, it is important to remember that any thin-set that has been exposed to moisture must be replaced. After roughly two days I would fill the corner with silicone. Is this overkill? Kerdi board vs. Membrane vs. Other for Shower - DIY Home Improvement Forum It could take longer if the space is particularly wet or humid. I'm guessing he put a 2x6 across for the curb? How long should I wait after painting on the Redgard before I try to reapply the membrane? Wedi vs. Kerdi Waterproof Membranes: Which Is Better? Can you remove tile from Kerdi membrane? Cut the Kerdi membrane to size using a utility knife or scissors. As fiber cement board is similar to regular cement board, it makes sense to choose the one that is cheaper or more readily available. Jessica considers herself a home improvement and design enthusiast. Kerdi really offers very little advantage over hardiboard plus membrane. Installing cement board involves placing the boards atop a layer of thinset adhesive, a process known as bedding. 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. Can I put Kerdi board over drywall? 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. Putting this stuff on walls is difficult and time . Can you put Kerdi over cement board? - TipsFolder.com After installing your mud bed, make sure it is fully cured before applying Aquadefense. #2 - Your suggestion has plenty of merit though. Using Kerdi Schlueter membrane with cement board. - Houzz @JimmyFix-it - You are right. The site is called floorelf.com. 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. 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 For the floor, he should've put a mortar bed, then a membrane that goes over the curb, then another mortar bed. Go with smaller bags or only mix half. Applying a conventional cement backer board to such a structure is almost impossible. you should still water proof with a liquid membrane product like RedGuard. It is lightweight and made of expanded polystyrene. Will add it in. is that because water doesn't really hit that area?" - Lisa Jasper That's pushing it but should be fine. Cement board, Wedi board, Kerdi board, Hardibacker, Densshield, Durock, Permabase, or Wonder board . To learn more, see our tips on writing great answers. With Wedi products, the compound curves are easy to produce quickly. The use of modified thinset adhesive could result in an inadequate bond and could lead to possible delamination. Kerdi-Shower-T/-TS/-TT is a prefabricated sloped shower tray with integrated Kerdi waterproofing. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. 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. Thanks. Kerdi, a waterproofing membrane made of a special polyethylene fabric, should be allowed to completely dry prior to tiling. Various products can be used to waterproof shower walls such as water-resistant drywall and cement backer boards. Regardless, cement board is a great, trusted tile substrate that will work well on both walls and floors. To waterproof Hardie board, you should choose a quality sealer that is designed for use on cement-based sidings. taping and prepping cement board for tile - Home Improvement Forum By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Shower Install - Cement Board or Schluter? - RedFlagDeals.com 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. Your Get free, zero-commitment quotes from pro contractors near you. True cement board (Durck, Wonderboard) is my first choice as a tile or Kerdi backer. About an argument in Famine, Affluence and Morality, Acidity of alcohols and basicity of amines. Blocking should be constant across this area when openings are larger than your fist. If installing large format tiles (over 15"), be sure to give the Aquadefense at least 8 hours to cure first. 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. Creative, C'mon over for a beer! Can Kerdi membrane be installed over painted drywall? Maybe try another brand of thinset? I would avoid Hardi, as Avanti is right that it is thirsty. :/. 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. 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. What is a word for the arcane equivalent of a monastery? If I go the kerdi membrane route, do I still need to tape the joints before installing the kerdi membrane . 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. The taping knife at a low angle makes an enormous difference, and I'm very grateful for that hint. Following the correct application of Kerdi membrane over cement board will ensure a successful waterproofing installation and lasting results for your tile project. Step 3: Apply Thinset. We tried soaking the cement board and applying the kerdi in small sections. Cement board (cbu) is not waterproof, but is not damaged by being wet. Sheets of glass mat gypsum are made from water-resistant silicone-treated gypsum, reinforced on both sides by fiberglass mats. What is the proper substrate to use on tiled wall? What was the indicator that let you know that spritzing was not enough, and that you needed to 'sponge' the Hardi? Out of curiosity, why are any of you suggesting backerboard at all? Once you have determined the type of thinset, its important to also consider the weather conditions during installation. This flexible polyethylene layer is easy to install and can protect the tile from both cracking and moisture. Finally, use a roller or brush to ensure that the membrane is secure and has no wrinkles or air bubbles. Once its applied, the last step is to follow up the waterproof coating with a waterproof sealant. You provide the pitch during the tile set. rev2023.3.3.43278. One of the major benefits of opting for Kerdi Board over cement board is the ease of installation. It allows you to easily and quickly create tile-ready elements in bathtub surrounds and platforms, vanities, showers, shelving, and much more.

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