Why are physically impossible and logically impossible concepts considered separate in terms of probability? 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. When it comes to selecting thinset for cement board, there are a few important factors to consider. . The problem is on the back side of the drywall, which is not protected. Putting this stuff on walls is difficult and time . In my. What do you mean it doesn't adhere? Go with smaller bags or only mix half. There is definitely skill & planning required to doit right. It is designed to form a waterproof layer between cement board and tiles, helping create a watertight installation. 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 says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. Thanks to Mongo's earlier post, we knew we'd have to spritz the Hardi -- but found that even that wasn't quite enough. Should I redo this wall to avoid a mold sandwich? Waterproof showers are the trend today, so RedGard is an excellent alternative to cement boards that act as vapor barriers. No, you do not need to install a vapor barrier, as Kerdi Board is the vapor barrier. To ensure that the Kerdi is completely dry prior to tiling, inspect the inside of the membrane for any signs of moisture or condensation. you should still water proof with a liquid membrane product like RedGuard. Start by cleaning the cement board with a mineral oil soap; this will help reduce mold and mildew growth throughout the life of the shower. You provide the pitch during the tile set. Once this is done, continue the installation by following the directions for the particular Kerdi product being used. 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. ".1) is is okay to use kerdi board instead of ditra on the floor? Hi.I have a unique situation. If cement board had been used, most likely the damage would have been much less that what I have to deal with now. Furthermore, if you're working in an older home KERDI-BOARD fits better than cement board in odd spaces. Additionally, it is important to waterproof cement board before tiling, as the grout and tiles can help keep the board watertight. Find the website that's made specifically for you. This allows the cement to properly hydrate, resulting in To ensure the floor is clean, wipe it with a wet sponge. You are wise to use a cement board. Kerdi does admit that you can use cement board. After roughly two days I would fill the corner with silicone. We like that the Kerdi membrane material installs easily over almost any substrate, including standard wallboard. As a contractor, I have been using Kerdi since it came out. Learn more about Stack Overflow the company, and our products. (3ft-3in wide). It is also widely available and a relatively inexpensive option approximately $10 for a 3-foot by 5-foot sheet. It is important to overlap the edge of the membrane so that it covers slightly more than half of the drywall behind it. I don't want to use the Ditra membrane product but rather tiles directly over the cement boards. When installing KERDI with . Regardless, cement board is a great, trusted tile substrate that will work well on both walls and floors. It fell right off? 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. Jun 21, 2017. Plus, if you use the mold and moisture resistant drywall, it will be extra insurance against mold. 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 will say that to is easier to put the membrane over drywall than cement board. A hundred times better to have too much before you comb than too little. Kerdi, a waterproofing membrane made of a special polyethylene fabric, should be allowed to completely dry prior to tiling. 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. Actually if you watch any pros work (not on crappy shows) on TV you will see them use backer board 99% of the time. This is confusing since Kerdi Board has no Kerdi on it. I posted a plea for help and Mongo and Bill both gave me good advice. All shower/tub areas should have concrete board (I prefer hardiboard). Even the tiling subs have moved away from mortar walls because of the labor cost and lack of craftsmen in the industry. 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. . Portland cement-based unmodified thin-set mortars are dependent on the presence of moisture for hydration in order to gain strength. Drywall under Kerdi would have been a better choice. 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! If you choose to use Aquadefense as a shower pan liner, be sure to continue it up the walls at least 6", tying into your waterproofing on the walls. We tried adding water to the thinset, we tried using a larger notch trowel, but nothing seems to make the Kerdi stick. BTW the older Kerdi thread referencedwas excellent. Everyone knows brick and stucco, but what about fiber cement and metal? Yes, you need waterproofing behind shower tile. We are still most comfortable with full plumber's pan over the curb, including glue-on preformed corners, and also a second layer (usually Kerdi but can be paint-on) on top of CBU wrap over curb. 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. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Additionally, all thin-set mortars should be suitable for use in wet or feature depths of up to 1/8 inch. If a pipe or faucet ever leaks in the wall this will ruin your shower. #4 You could be adding a good 1000 pounds to your install too. Yes, it is recommended to waterproof cement board, especially if it is going to be used in exterior settings or in places where it will be in contact with water. @DMoore- OK, I agree that with redguard it would be redundant. There is a product called Kerdiboard you might want to look into. Cement board and grout are not water proof, if there's Kerdi no moisture is ever going to be able to get behind it. First, it's super lightweight compared with the rest. We tried soaking the cement board and applying the kerdi in small sections. I would avoid Hardi, as Avanti is right that it is thirsty. Cement board (cbu) is not waterproof, but is not damaged by being wet. 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. (3ft-3in wide)Or will the Kerdi membrane (with seams taped with kerdi band) prevent each board from moving . Slap it up comb it out, leave every ridge tall and perfect. Self-leveling underlayment has many of the same advantages as a dry-pack mortar bed but doesnt require as much skill to install. Once the wall is prepped, use a primer that is compatible with the KERDI membrane so that it will properly adhere to the wall. Yes. In general, the Schlter system is typically more expensive than a cement board, and some people may find this an attractive option for its long lasting, easy to maintain qualities. There's a really great manual (with diagrams) that makes this all easier to understand. Problem with very thick cement board/ tile/bullnose edge, Steam Shower Slip Joint Detail - The secret is in the boarding stage. 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)). Plus, most self-leveling formulas harden very fast, so you have to plan carefully so you can mix and pour quickly. Overall, waterproofing behind and around shower tile is a critical part of any installation to ensure that the area is adequately protected from water and moisture damage. Gettin' a little delirious. Now there's nothing particularly wrong with fiber-cementit's just not my first choice. I also used the Kerdi drain. 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. "thanks in advance :-) I know so little about this stuff, but when I watch videos (made by schluter-kerdi) everything looks so tidy and perfect - maybe that's not realistic'''" - Lisa Jasper It should look better than that and it's hard to tell but the wall stud spacing looks extreme and more than 16" I could not see if the screw heads where covered in the photos and in the one picture you can see that the screw and washer fitting where not covered. It is important to waterproof Hardie board to make it more water-resistant, as well as to protect the materials from the elements. You're correct if you use the shluter kerdi membrane you do not use a vapour barrier since it creates a sandwhich effect that doesn't allow the substrate . What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? Welcome to the site. I hope you made the guy flood test his work prior to tiling the shower floor. Schulter Ditra is manufactured by Schluter Systems and is a 1/8 thick polyethylene uncoupling membrane that is specifically designed for tile installations. Think about movement. You troweled on thinset combing it out then pressed the Kerdi into place? I would get someone else. Is a PhD visitor considered as a visiting scholar? This allows the cement to properly hydrate, resulting in a strong, dense bond coat. 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. Given the complexity, its easy to see why even experienced tile setters avoid dry-pack mortar and use backer board instead when they can. 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. The cement board core itself is not waterproof, but it can withstand water without falling apart. All shower/tub areas should have concrete board (I prefer hardiboard). Cement board sucks up the moisture and as a result, the kerdi doesn't always stick as well to cement board. Retired Moderator - Theatre Guy (and computers). Cement board comes both in 1/4-inch-thick and 1/2-inch-thick versions. The surface of Wedi is perfect for bonding. On a vertical surface, very little moisture . To properly seal a cement board for a shower, its important to first properly prepare the surface. Yes, it is possible to put Kerdi over regular drywall. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. In normal residential use I wouldn't worry about it. 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. 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. If I go the kerdi membrane route, do I still need to tape the joints before installing the kerdi membrane . Most of the entries in the NAME column of the output from lsof +D /tmp do not begin with /tmp. link to What Kind Of Paint For Garage Walls? Sloped Shower Tray KST1220/1525 - The Home Depot. You probably have to go to a big box store's special order desk or find a specialty tile supplier to find it. If youre not careful, the boards can also leave behind abrasive sandy crumbs that can cause damage to your shower base or tub. It is designed to form a waterproof layer between cement board and tiles, helping create a watertight installation. If you preorder a special airline meal (e.g. Since KERDI is impervious, it does not deprive the mortar of its moisture. Kerdi 3 ft. 3 in. I just a few weeks ago put kerdi on top of hardi-board in my shower and it was PAINFUL! Though, each product comes with its own individual characteristics, and pros and cons. 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. Kerdi Board is suitable for a number of interior applications. Using cement board and a sheet membrane . What was the indicator that let you know that spritzing was not enough, and that you needed to 'sponge' the Hardi? Moisture resistant can cause similar problems, and there is absolutely no advantage to it. Schluter approves their waterproof Kerdi membrane over drywall. Politique d'Utilisation des Cookies de Houzz. On the other hand, a Schlter system offers improved thermal insulation, which can help to reduce heating costs. PROBLEM SOLVED for Tub Flange when Installing Cement Board and Tile. It also features fleece webbing that allows for effective anchoring into thin-set mortar. Additionally, all seams should be sealed with Kerdi Fix and covered with fleece. Yes, you should prime drywall before installing KERDI in order to ensure proper adhesion and a successful installation. 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. Yes, Hardie board needs to be waterproofed. If you can avoid that, the demo would be ~easy enough to maybe have some friends who'd work for beer come over and help you knock it out. Like cement board, the boards are heavy and hard to cut. Kerdi board, on the other hand, is an extruded polystyrene foam panel. Kerdi membrane can be used on cement board, drywall, and, as you may have guessed- greenboard. I used 1/2 Hardibacker board over the studs and then used the Kerdi membrane over the Hardi. In . #2. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. Greenboard is the same as regular drywall. I've never had a failure. I appreciate your help and your quick response. Anytime Mongo. 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. This is a bit difficult to answer as it depends on the particular application for the floor system. See the foam bench and the corners. 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. Calculating probabilities from d6 dice pool (Degenesis rules for botches and triggers). I used 1/2 Hardibacker board over the studs and then used the Kerdi membrane over the Hardi. Thanks for contributing an answer to Home Improvement Stack Exchange! Cement board is known to be very heavy and somewhat difficult to cut. When applying the primer, make sure to cover all surfaces thoroughly, as these will be completely covered by the KERDI membrane. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Good luck with your project. How do I connect these two faces together? The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. Is this overkill? How do I align things in the following tabular environment? When applying Kerdi membrane to cement board, the edges and seams of the membrane must be lapped, meaning that each layer should overlap the portion underneath it by a minimum of two inches. Various products can be used to waterproof shower walls such as water-resistant drywall and cement backer boards. When doing so, it is important to ensure that the drywall surface is clean and free of dust, grease, and loose paint. And how do you keep too much water from interfering with the adhesion in the second scenario?Thanks!! 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. However, a cement board is generally easier and less expensive to replace if a repair is needed. 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 . 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). Furthermore, if another trade, such as the shower glass installers, makes a mistake then you'll be . 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. link to How To Organize A Bathroom Closet. It is lightweight and made of expanded polystyrene. 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. x 33 ft. Waterproofing Membrane: Kerdi-Board 1/2 in. Finally, it is important to remember that any thin-set that has been exposed to moisture must be replaced. First, you would waterproof with your favorite liquid waterproofing membrane of . We sponge water onto the cement board. This flexible polyethylene layer is easy to install and can protect the tile from both cracking and moisture. Personally, I like standard drywall. Je peux rejeter les cookies non essentiels en cliquant sur Grer mes prfrences . We are no longer supporting IE (Internet Explorer), Do not Sell or Share My Personal Information. ", Signed,Never Hung Kerdi A Day In Her Life. There are numerous ways to do this. Kerdi is not a user friendly product, and when you shrink your working time down it is downright stressful. . Yes, Kerdi membrane can be installed over plywood.
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