What? Think about movement. We tried adding water to the thinset, we tried using a larger notch trowel, but nothing seems to make the Kerdi stick. Connect and share knowledge within a single location that is structured and easy to search. 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. I don't want to use the Ditra membrane product but rather tiles directly over the cement boards. If you do not already have the hardi up, I recommend using real cement board (Hardi is a fiber-cement) or drywall. How should I transition between cement board floor and alcove tub? Politique d'Utilisation des Cookies de Houzz. Kerdi Membrane Over Greenboard (Is It Recommended?) This product is available in 3/16", 3/8", 1/2", 5/8" 3/4", 1" 1-1/2" and 2" thicknesses, allowing for a wide variety of installation options. When applying thin-set mortar, the manufacturers instructions should be followed closely. This is a bit difficult to answer as it depends on the particular application for the floor system. Cement board is a good, reliable backer board that works well on both floors and walls. Schulter Ditra is manufactured by Schluter Systems and is a 1/8 thick polyethylene uncoupling membrane that is specifically designed for tile installations. Why you use cement board? Kerdi vs Redguard cost breakdown. : r/HomeImprovement - reddit Do you have any pictures? What precautions should I take installing tile on a backerboard in an area surrounded by cement? Once its applied, the last step is to follow up the waterproof coating with a waterproof sealant. x 5-ft. and 3 x 5-ft. sheets of cement board are sized for efficient use around bathtubs and showers. that's home depot homeowner installation method. Should I use Kerdi membrane or cement backerboard? Just wondering how effective is the tile on kerdi membrane vs the traditional cement backboard where tiles are glued directly to the drywall? I'm guessing he put a 2x6 across for the curb? vegan) just to try it, does this inconvenience the caterers and staff? 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. link to How To Organize A Bathroom Closet. Once you have selected the right sealer, follow the manufacturers instructions and apply a generous, even coat over the entire surface of the Hardie board. Kerdi board is a kind of waterproofer because these kinds of boards are made of XPS foam. Your email address will not be published. I think it is engrained in me to do that so I forget to mention it. Hi.I have a unique situation. Why do small African island nations perform better than African continental nations, considering democracy and human development? When screwed to the framing, thin strips of cement board fracture more easily than thin strips of fiber-cement. Mike Holmes uses backer on his show. Step 1: Measure the area. Hardibacker is a VERY "thirsty" material that sucks the moisture out of the mortar VERY quickly and I don't like it. ps, now that you don't need it anymore you can throw that useless cheap piece of crap magnesium float my way. Cut the Kerdi membrane to size using a utility knife or scissors. Look at it this way; Withe Kerdi, you either trust it or you don't. Like the example above. The Kerdi-Line prefab pans and drains make me feel way more comfortable with the waterproofing. 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. So long as the seams and joint areas are properly prepared, the panels can also provide waterproofing. 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. Your real issues are the lack of proper corners on this shower. 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. How to install a kerdi membrane over cement backer board - Quora In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. I still wet the walls first. Yes, KERDI membrane will stick to cement board. Tile Shower SurroundCement Backerboard Location? Plus, if you use the mold and moisture resistant drywall, it will be extra insurance against mold. Seems like I've been using the full measure of water the bag calls for, plus about 10%.-50 lbs of thinset at a time is too much for an amatuer. A quality underlayment will also serve as a waterproof barrier between the subfloor and the tile surface. Building Panel: Price $ 119 00 $ 202 06 $ 279 00. This is necessary to ensure that the membrane will adhere properly to the drywall. The big issue with cement board is that the thinset will skin over really quickly. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. Prime first to create a flat, uniform surface that is free of dust, grease and other debris. Finally, it is important to remember that any thin-set that has been exposed to moisture must be replaced. The benefit of using kerdi is we can lay it over drywall, We've added a "Necessary cookies only" option to the cookie consent popup. This will ensure that the coating sticks to the cement board. Make sure to use multiple coats, if necessary. Install an Uncoupling Membrane Between Concrete and Tile. Thanks. What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? 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. Kerdi 3 ft. 3 in. We store towels, medicine, toiletry supplies, first-aid gear, massage devices, facial steamers, spare Painting your garage is a great way to improve the look of the space and make the walls easier to clean. There is definitely skill & planning required to doit right. #4 You could be adding a good 1000 pounds to your install too. Kerdi membrane over drywall in shower - qkfb.recidivazero.it Find the website that's made specifically for you. Modified vs. Unmodified Mortar With Kerdi Membranes 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. Sloped Shower Tray KST1220/1525 - The Home Depot. ;). The waterproof membrane isn't a substitute for the substrate. 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 . Why does the plumbing rough need to be moved? 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. 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. Is a PhD visitor considered as a visiting scholar? Cement board, Wedi board, Kerdi board, Hardibacker, Densshield, Durock, Permabase, or Wonder board . Cement board comes both in 1/4-inch-thick and 1/2-inch-thick versions. This will help to ensure that all drywall is completely covered. How long should I wait after painting on the Redgard before I try to reapply the membrane? 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. 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. We tried soaking the cement board and applying the kerdi in small sections. Kerdi Vs. RedGard (Compared) - Build It Fine Both may be effective substrates, but Kerdi Board boasts significant advantages. Cement boards are typically capable of withstanding larger amounts of water, while a Schlter system is designed to hold up well only in dry conditions. As far as the tile/prep work, you are right that he is shifting the blame. We are DIYers who have already remodeled one bathroom successfully, but this is our first time using The Schluter shower system. 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. Also - use a good thinset. All it takes is the right preparation. Anyone who has done more than 1 shower shouldn't start without knowing that. Properly waterproofed Hardie board should last for many years. DensShield is one common brand. If a pipe or faucet ever leaks in the wall this will ruin your shower. Some being easier to work with than others. A place where magic is studied and practiced? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Cement board is particularly vulnerable to water damage, so waterproofing can help protect it and help it last longer. The use of modified thinset adhesive could result in an inadequate bond and could lead to possible delamination. Kerdi Board is expensive, but I can justify it because it saves time, and it's a joy to use. Retired Moderator - Theatre Guy (and computers). You peeled it off? Step 4: Place the Tile. We are no longer supporting IE (Internet Explorer), Do not Sell or Share My Personal Information. Using self-leveling underlayment takes careful prep work. Will be doing a bathroom gut and will be laying durock cement board over plywood sub floor. 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. After today's tutorial, you'll gain the confidence to transform your old bathroom into a new space. The most important thing to remember when applying the membrane over the cement board is to make sure the surface is clean and free of any debris, dust or other contaminants.

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