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? 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. In my. Unlike cement boards, you can bend this material without it breaking. 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. We installed cement board on the walls, and today when we attempted to apply the Kerdi membrane we could not get it to adhere. 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. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. With Kerdi Board you get to enjoy an effective product that is lightweight, easy to cut, waterproof, and leaves behind no dust! Also - use a good thinset. First, you would waterproof with your favorite liquid waterproofing membrane of .
The Pros and Cons of Various Tile Backers | Family Handyman 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. If done according to manufacturers instructions, it will seal nicely. Self-leveling underlayment has many of the same advantages as a dry-pack mortar bed but doesnt require as much skill to install. #4 You could be adding a good 1000 pounds to your install too. To prevent those movements from transferring to the tile floor, consider installing an uncoupling membrane between the concrete and tile surfaces. Other mistakes I was making early on:-over working the thinset. Kerdi Board vs. Cement Board. See the foam bench and the corners. We just went through a learning curve on the Kerdi and Hardi. Will be replacing tub shower combination with tiled shower in my home. This is necessary to ensure that the membrane will adhere properly to the drywall. you should still water proof with a liquid membrane product like RedGuard. x 33 ft. Waterproofing Membrane: Kerdi-Board 1/2 in. We are no longer supporting IE (Internet Explorer) as we strive to provide site experiences for browsers that support new web standards and security practices. I would avoid Hardi, as Avanti is right that it is thirsty. You absolutely need to include some sort of substrate (cement board, green board, regular drywall) with the Schluter-Kerdi waterproofing kit. Cement board sucks up the moisture and as a result, the kerdi doesn't always stick as well to cement board. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? 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. Drywall under Kerdi would have been a better choice.
Kerdi Membrane not sticking to cement board - John Bridge 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. By the time you switch from the RG application to the Kerdi installation, it should be dry. . 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? True cement board (Durck, Wonderboard) is my first choice as a tile or Kerdi backer. Thanks for contributing an answer to Home Improvement Stack Exchange! 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. This feature makes building the base structure much easier and more cost . What do you mean it doesn't adhere? I have to redo my tub surround due to moisture leaks and failing grout. What changes do you suggest to make Bathroom looks more updated? LONDON. Tile can be installed directly over Kerdi-Board using the thinset method; For use with ceramic and natural stone tile; Return Policy; California residents.
Liquid membrane over cement board | Terry Love Plumbing Advice Also are you saying that you wet ("booking the Kerdi") the Kerdi, as well?
Can You Put RedGard On HardieBacker Board? - Next Modern Home PROBLEM SOLVED for Tub Flange when Installing Cement Board - YouTube The problem is on the back side of the drywall, which is not protected. After today's tutorial, you'll gain the confidence to transform your old bathroom into a new space. 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 like that the Kerdi membrane material installs easily over almost any substrate, including standard wallboard. First Kerdi can be installed on drywall or cement board. Hardi is definitely a "thirsty" substrate but will work, even without a primer of RedGard. However if installed on drywall it is only protecting one side. If you ensure that silicone goes in and that the thin-set and grout do not bind there you should be good to go. Given the complexity, its easy to see why even experienced tile setters avoid dry-pack mortar and use backer board instead when they can. Kerdi-Board panels allow the installer to prepare and create a broad range . After installing your mud bed, make sure it is fully cured before applying Aquadefense. We sponge water onto the cement board. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA.
Shower Install - Cement Board or Schluter? - RedFlagDeals.com This will help protect the cement board from water damage, and is often a specific type of coating designed for use with cement boards. This allows for future compression and an area at the corner where things are more forgiving. x 5-ft. and 3 x 5-ft. sheets of cement board are sized for efficient use around bathtubs and showers. 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. Cement board is the most common and widely-known backer board. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. However, if installed on drywall, it only protects one side. Jun 21, 2017. Kerdi can even be installed over drywall. 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. Personally, I like standard drywall. Too little, and the kerdi will never show you gray, no matter how you sweat. They are available in thicknesses of 3/16, 3/8, 1/2, 3/4, 1, 1-1/2, and 2 (5, 9, 12.5, 19, 25, 38, and 50 mm). I trust it and have never had a callback. Needed to interject a little "amateur humor. 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. Its important to note that Kerdi membrane is not a structural base layer, so plywood should be installed and reinforced as necessary based on load requirements.
Do You Need Uncoupling Membrane Over Concrete? - On Secret Hunt Cut the shower tray to size. Additionally, all thin-set should be allowed to cure for 24 hours before tiles are installed. . 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. Connect and share knowledge within a single location that is structured and easy to search. #1 - Backer board has nothing to do with HD or any other big box. Project Type: Tile / Category: Bathroom.
Is it Sinful to put Kerdi over Hardi-backer? - Houzz Once all areas have been properly waterproofed, the walls can be tiled and grouted to create a waterproof surface. builder, anti-builder, rebuilder -- Retired Moderator. Waterproofing cement board is relatively simple and there are several different waterproofing products available. I usually use Durock.
Best Cement Boards for the Shower - The Spruce 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. @JimmyFix-it - You are right. It's still applied to cement board. They can be installed on any type of support and can even be used to create partitions, with no structural support required. Our thinset was more watery than the videos, but it still managed to dry out quickly, even in the time it takes to apply the small corners in our shampoo niche. It only takes a minute to sign up. And by 'booking the Kerdi' I mean we put it in the bathtub, sprayed it with the handshower, then booked it (just like wallpaper). This is a very effective and popular method of installing tile, and one that ensures the tile doesnt crack. Waterproofing is an important aspect of any bathroom or wet-area installation. x 60 in. I look at ceramic tile as a lifetime-of the house-product, so I use the best material for the job.I prefer to use cement board as the substrate with the Kerdi on top. Properly waterproofed Hardie board should last for many years. What precautions should I take installing tile on a backerboard in an area surrounded by cement? Kerdi can be installed first on drywall or cement board. Re: Kerdi on shower curbs. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. 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). Following these steps will help ensure that your shower space is properly sealed, and thus that the cement board is well protected from moisture. It is important to waterproof Hardie board to make it more water-resistant, as well as to protect the materials from the elements. Actually if you watch any pros work (not on crappy shows) on TV you will see them use backer board 99% of the time. Contact us: 888-472-4588
ps, now that you don't need it anymore you can throw that useless cheap piece of crap magnesium float my way. One thing I do like fibercement (Hardie) for is when I need thin strips of cement 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. Will use the Schluter Shower system. Anyone who has done more than 1 shower shouldn't start without knowing that. Even the tiling subs have moved away from mortar walls because of the labor cost and lack of craftsmen in the industry. Maybe try another brand of thinset? What is a word for the arcane equivalent of a monastery? If you do not already have the hardi up, I recommend using real cement board (Hardi is a fiber-cement) or drywall. WATCH HERE: https://www.youtube.com/watch?v=3TRLd2HYhbU&list=PLO47JMsdYGrkxM_ZkOc3lMnsVhTqj80bB#justdoityourself #lovingit #p. Welcome to the site. Learn more about Stack Overflow the company, and our products. 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. This creates a strong, waterproof tile backer that also functions as an uncoupling membrane. As such, many homeowners and professionals find themselves wondering whether Kerdi Board or cement board is the better tile substrate. Once its cleaned, use caulk to seal all of the seams where the cement board meets the walls. ), Minimising the environmental effects of my dyson brain, Finite abelian groups with fewer automorphisms than a subgroup. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. We apply the thinset the recommended trowel, can't remember what size off the top of my head, in small sections and by the time my husband hands my the piece of membrane the thinset is not skinned over but certainly dry. #3 This is a DIY site. This flexible polyethylene layer is easy to install and can protect the tile from both cracking and moisture.
Schluter Kerdi 108 Sq Ft Waterproofing Membrane - amazon.com Allow the adhesive to cure for the amount of time recommended by the adhesives manufacturer.
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