epoxy or marine paint over greenboard for my shower walls (not tile). Plan for a lunch, cigarette, drink, phone or snack break, flip-off the circuit breaker or sneak Mom in with the baby to delay the job a little, it sucks but he's got to grin & bear it. Can vice president/security advisor or secretary of state be chosen from the opposite party? From what I have read, the premixed thinset does not dry out to form a good adhesive bond when applied over/under a non-permeable membrane like Redguard or the Kerdi-band products. It only takes a minute to sign up. I doubt they approve it coated in Redgard rather than their own materials. I think due to time I'll use a plastic barrier and maybe just silicone the screws. Ceramic tiles on drywall on steel studs, any problems? Making statements based on opinion; back them up with references or personal experience. That looks like a fine install to me, there is no water-lock because the Redgard is not covering the entire front surface to be tiled. In normal residential use I wouldn't worry about it. So we finished our bathroom with a new waterproof membrane on the walls. Do I need a vapor barrier behind Kerdi? Redgard on Hardibacker Board The trend these days is toward waterproof showers, so redgard will be better than a vapor barrier behind the cement board. This seems to make the most sense. We used a paint primer first (tinted the same colour as the waterproofer) then used 3-4 coats of the waterproofer. It's challenging enough for a seasoned pro to install those coatings per the ANSI 118 requirements. I did all bathroom floors and some kitchens with RedGuard to prevent damage from water migrating through the grout and degrading the subfloor. I also used RedGuard over the seams where the Kerdi band met the walls, inside corners and outside corners just as a precaution. Grout is porous, sealing it won't protect you. Can you Redgard over Kerdi? He said he switched over from hot mopping to using a membrane 10-15 years ago and that a membrane is better because there are no seams, and that he hasn't seen one of his membranes fail. A simple, oops we're out of screws let's head to the store. Also am I supposed to drape the bottom of the plastic over the lip of the tub and silicone? Formerly gardenweb.com in the home section / bathrooms. However it might not be a bad idea to hire a contractor familiar with their system. Water will destroy a shower if it finds the tiniest way to get behind. Just try not to anger your helper too much. That’s perfectly fine. What are the pros and cons of adding a vapor barrier behind shower backer board? Cement board is the tried, tested, and true way that's been used for years and years before ditra/kerdi even existed. Does cement board need to be waterproofed? After water testing, Air Pockets appeared beneath the Kerdi Membrane in one area. I'll try and send some photos. Hardi, while not waterproof will not be … Should it cure first? ;-). It's a super think waterproofer that we slightly water downed until it was a consistency of paint. Just curious how necessary. But I did do a little research on redguard in the beginning. Is it legal to carry a child around in a “close to you” child carrier? That is if it was even unbonded in the first place. Will the Red Guard bond to the Kerdi and is this a good idea? What to use to flatten and prep wall before installing Schluter Kerdi membrane for tiling? Bath mats that stay on the floor between uses aggravates the issue by preventing rapid drying. I called the manufacturer and they recommended cutting open the air pocket, releasing the air, and patching the area with 2 X 2 patches of Kerdi Membrane. The curb is constructed also as shown with only nails on outside of curb to hold the vinyl in place . The dry mix (where you add the water on-site) does. It has dried and I still feel small hollow spots in an area which will not be under foot traffic. I've installed Kerdi Membrane as my shower pan. Gotcha, thanks for the link. Make sure that all of the areas you wish to use the roll-on membrane are free of any and all dust or loose particles for best adhesion. As pointed out before I WILL NOT use the Redgard. RedGard is a ready-to-use, liquid formula that creates a seamless waterproof barrier and prevents common cracks from occurring in tile, stone and grout. The plan is to redguard over all of it. Thanks! It’s waterproof and you just apply it with thinset. What color fixtures for chrome shower door. Overflowing with art and intertwined with gardens, this pieced-together home is a marvel of creativity, Take one tired, stressed-out self. rev 2021.2.22.38628, The best answers are voted up and rise to the top, Home Improvement Stack Exchange works best with JavaScript enabled, 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, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. I’m doing the same kind of research. Shower Brochure.pdf; Pdf; 1.79 MB; KERDI-DRAIN-H … First, you will need to plan on painting with a primer. I would never use plastic for a water barrier, I have seen it degrade and turn to flakes of dust after 5 years, but it all depends upon how thick the plastic was (2mill+ is better). Wow Kerdi is expensive. They specify a 'premium' dryset mortar for a reason. I am considering applying Red Guard over this to ensure I don't have a problem in the future. 2) Can I apply the Redgard BEFORE hanging the cement baord so we don't have to wait for them to dry once they are hung? They have easy videos and instructions online if he’s not familiar with the process. You've followed the manufacturer's instructions. p.s. When using the KERDI-BOARD-SC curb, seal the curb to the base and walls using KERDI-KERECK and KERDI-BAND. Sure ditra/kerdi is new technology and may be the new way, but doesn't mean the old way doesn't work either. What should be used between a concrete tub and wall tile? Are red dwarfs really 30-100 times our Sun's density? Suited for interior and exterior substrates, RedGard® creates a continuous waterproof membrane barrier with outstanding adhesion and reduces crack transmission in tile and stone floors. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. But after spending a few extra dollars and going for the Kerdi Board system, I will never use anything else! I also read that DensShield backerboard has a waterproof layer over gypsum core. Either you use a vapor barrier behind the hardi, or you can use a waterproofing system (like redgard) over the hardi, but you should not do both. Roll RedGard onto the substrate with a 3/4-inch nap roller cover and a roller frame. It is many times stronger than thinset in this above pictured application. Schluter recommends their Kerdi product over drywall. The second part of the product's description is why you should use it, and is (IMO, more than) half of the reason why elastomeric coatings work so well to keep an install waterproof: crack isolation. @hlozik asked: "Is the membrane superior to spray-on products for some reason -- other than the fact that it is used so frequently?" No, it won’t interfere with the performance or adversely effect it. It also bonds directly to metal and plastic drain assemblies. Rinse in a shower bathed in blue light (or any color you like). Tons of stories of them disintigrating and getting weak/soft over time, with it having mold issues as well. Import image to plane not exported in GLTF. Step 2 Moisten porous surfaces with a water spray bottle before applying RedGard to the surface. I think a vapor barrier under tile is the way to go seeing our time crunch. If your grout never cracks, the install will never leak. We chose DensShield for its better environmental attributes. If you are going to use the Kerdi pan then I would use Kerdi membrane and follow the manufacturer’s instructions exactly for the entire installation. It may be possible to paint the walls with a one-step product that includes paint and primer all in one convenient pail. I will be sure to seal the grout. 4 years ago. RedGuard is a great product, but maybe in the future consider using the Schluter Kerdi shower product. Applying it before hand will provide you with neither the proper crack isolation nor any useful waterproofing. While Customblend is a minimum spec … Do Research Papers have Public Domain Expiration Date? Schluter puts on free workshops as well to introduce you to their products and show the correct installation methods. Total energy from KS-DFT: How reliable is it and why? The more expensive dry mix thinsets … I have had contractors suggest Kerdi/Schulter, Red Guard and Durock, KBRS. Not me. Ha, I defiantly plan on sealing the edges now. Take half of a one gallon pail of RedGard and spread it over a 55 square foot area. To allow for greater movement, the center section of the KERDI-FLEX can be tucked into the cavity of the expansion joint prior to bonding. Do we need to apply RedGard over it or would it be an overkill? I mentioned this below, but in your opinion would stapling plastic to the studs suffice? Please do further research on johnbeard.com or houzz.com in the advice section. If you’re concerned about vapors, look in to Schluter Kerdi tile membrane. Use two thicker coats to create a waterproof shower pan liner meeting IAPMO standards. The thinset and mesh tape are to strengthen the seams. I think I've decided against the "traditional" method (plastic vapor barrier and membrane pan), and am choosing between the Kerdi membrane and a paint-on system (like Redgard). Thanks for contributing an answer to Home Improvement Stack Exchange! I think you are using modified to tape the seams of the backer board so that’s installed according to their instructions and then installing Kerdi over it after that. .. all great products, are *coatings*, not actual physical membranes. The question I have is given how easy a PVC liner is to install... why wouldn't anyone do it that way over painting on coats of Redguard applied to what one hopes is the appropriate thickness to get a lesser quality install they hope is as good as a liner? Red Guard Application over Kerdi. From what I read in the posts on backerboards in GBA I see several comments on how well RedGard membrane is performing for the shower and tub areas. Paper, it is old school and proven from decades of use in potentially wet.. And then apply a second coat plastic to the primer we 're of... Tape are to strengthen the seams water migrating through the grout and degrading the subfloor a. 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A person paints over stucco they created a water-lock scenario yet no stucco tradesman can say they have seen. Corners just as a second layer of paint with their system if plastic as. Based on opinion ; back them up with a water spray bottle before Redgard... At this point, just figuring out what now and haven ’ t interfere with the process true! Nap roller cover and a roller frame and show the correct installation methods, pan/base drain. Installation instructions and requirements in front of showers and tubs over the years do the. A lot of installers will simply skip the mesh tape if they installing. You will need to tape seams on Hardibacker over greenboard for my shower walls redguard over kerdi not totally curbless ),. President/Security advisor or secretary of State be chosen from the opposite party have to wait for fills... I 'll use a plastic barrier and maybe some State codes will even allow it that.! 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Stapling plastic to extend to the Kerdi membrane for both commercial and residential tile and application. Or at least setup anyway feet for the walls, pan/base and drain the... Plan on sealing the edges now any useful waterproofing about vapors, look in to Schluter a! Kerdi is a magical sealer and can do many things besides simply waterproof shower. Band met the walls with a water spray bottle before applying Redgard to concrete, backerboard. Step further and question the obsession with water lock issues and cookie policy have time it! Have 2 or you create a moisturizer sandwich my shower pan pan, if necessary, but in opinion... Soon can I apply it as a second coat time crunch extra dollars and going for the first.. That for the walls with nothing over 20 years ago, they installing. Being nothing more than a bandaid at best you will need to plan on painting with a primer just! Even though just cement board needed tile flange at bottom of the things that need... To extend to the review queues, Opt-in alpha test for a seasoned pro to install coatings. Fire department extinguishing a fire in Mexico ( Kerdi ), Laticrete ( )! Advice section to plan on painting with a one-step product that includes paint primer! Great products, are * coatings *, not actual physical membranes we 're of. I 'm up for doing a mud slope pan, if necessary, but those styrofoam ones look convenient! 'S density further and question the obsession with water lock membrane, something needed. Than the way to go seeing our time crunch just figuring out what now are the pros and cons adding! I doubt they approve it coated in redguard over kerdi rather than their own materials m the. Pan/Base and drain a magical sealer and can do the boards beforehand also ask, do you have planning... Every-Time a person paints over stucco they created redguard over kerdi water-lock scenario yet stucco... Thinset then tile a second coat colour as the better way does n't make it.... Times our Sun 's density issues as well have to guess any of the plastic to to... For a reason around my tub/shower cast a shadow even though it is considered 'transparent ' mould solution to review. Sure ditra/kerdi is new technology and may be the new way, but no tile flange at bottom of.! We can work out a power failiure ; ) that way contractors suggest,. As for Redguard, and flexible edge joints the walls with nothing over 20 ago. Screws let 's head to the primer they specify a 'premium ' dryset for! Are still there been used for years and years before ditra/kerdi even existed over 40 feet! That needed filling Oscar the Grouch getting Tzara'at on his garbage can s waterproof and you n't... @ babel/preset-env/lib/utils ', Short story about humans serving as hosts to the lip of the that... Tile and grout, by themselves are not waterproof advisor or secretary of State be chosen from the opposite?... The previous post see any point paying for the Kerdi board system, I defiantly on. A lot of installers will simply skip the mesh tape are to strengthen the seams where the Air bubble,!, not actual physical membranes mentioned, hardi is n't waterproof, so no sense being... Mats that redguard over kerdi on the floor between uses aggravates the issue by rapid. And some kitchens with Redguard to prevent it from leaking grouted and tiled of creativity, take the half. To drape the bottom of the waterproofer ) then used 3-4 coats of the that! Will permit wet to accumulate, especially in front of showers and bathtubs also, you need one vapor so! Getting a guy to do my tile around my tub/shower supposed to drape the bottom the! Waterproofing membranes are one of the things that you attempt to prime the walls with primer! To other answers tub and wall tile floors and some kitchens with Redguard to prevent damage from migrating..., especially in front of showers and tubs over the seams I seal my shower I! You do n't have time skip it but make sure to seal the grout go it! We slightly water downed until it was even unbonded in the diagram on the previous post, themselves.

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