kerdi membrane over cement board

The surface of Wedi is perfect for bonding. 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. Kerdi vs Redguard cost breakdown. : r/HomeImprovement - reddit What do you mean it doesn't adhere? Additionally, all thin-set should be allowed to cure for 24 hours before tiles are installed. The foam core surrounded by synthetic cloth on both sides and adhered with resin glue is. Kerdi membrane prevents water damage and mold development. 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. Can you put Kerdi membrane over cement board? The completed assembly takes the place of more traditional backer board when installed over 3/4-inch wood subfloors. Whether youre installing tile on a floor, wall, or countertop, choosing the right type of substrate, or underlayment, is critical to preventing breaks and cracks in both the tile and the grout. GoBoard is a kind of backer board because the main elements of a backer board are cement, silica, fiberglass, etc. PROBLEM SOLVED for Tub Flange when Installing Cement Board - YouTube x 60 in. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Actually if you watch any pros work (not on crappy shows) on TV you will see them use backer board 99% of the time. However if installed on drywall it is only protecting one side. 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. Significantly more time and effort is required to ensure a quality bond when using a modified thinset adhesive with KERDI, and for this reason, it is usually not recommended. By: Author Olin Wade (Remodel or Move Stuff). Best Cement Boards for the Shower - The Spruce Houzz Pro: One simple solution for contractors and design pros, surfer thanked Avanti Tile & Stone / Stonetech. 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 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. A place where magic is studied and practiced? 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. Fixing that is not that easy though. (3ft-3in wide). When installing KERDI with unmodified thin-set mortar over particularly dry and porous substrates, it is recommended to wet the substrate first, in order to help prevent premature drying or skinning of the thin-set mortar. All it takes is the right preparation. When installed, Kerdi Board creates a substrate that is level, flat, square, plumb, and dimensionally stable. 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. It worked well - just like wallpapering. 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. 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. I trust it and have never had a callback. I have corrugated metal shower surround & grab bars. Yes, Kerdi membrane can be installed over plywood. Cement board (cbu) is not waterproof, but is not damaged by being wet. We recommend our users to update the browser. How do you show the depth of a hole in a drawing? But I can't give you a +1 because telling someone to mortar all the walls in a large shower is like telling them to make an ice sculpture. The niche' intermediate shelf isn't actually attached, to enable specific placement for each unique tiling application. Kerdi board is a kind of waterproofer because these kinds of boards are made of XPS foam. Schluter Kerdi on regular drywall - GreenBuildingAdvisor Moisture resistant can cause similar problems, and there is absolutely no advantage to it. Yup! First, felt paper is stapled to the floor and covered with expanded metal lath. It is also widely available and a relatively inexpensive option approximately $10 for a 3-foot by 5-foot sheet. You'll know the RG is dry when it turns reallllly dark bright red as opposed to the pinkish color when applied. We tried adding water to the thinset, we tried using a larger notch trowel, but nothing seems to make the Kerdi stick. Waterproofing cement board is relatively simple and there are several different waterproofing products available. A successful tile installation largely depends on the substrate that the tile is attached to. Let the mortar dry for 24 hours then test the shower. Why do small African island nations perform better than African continental nations, considering democracy and human development? It is important to waterproof Hardie board to make it more water-resistant, as well as to protect the materials from the elements. Yes, Hardie board needs to be waterproofed. Given the complexity, its easy to see why even experienced tile setters avoid dry-pack mortar and use backer board instead when they can. Ceramic Tile Advice Forums - John Bridge Ceramic Tile, http://www.youtube.com/watch?v=G4HjHT6_cUo, http://www.youtube.com/watch?v=wEt6irjJCI0, My master suite addition & full bath to 1/2 bath renovation. link to How To Organize A Bathroom Closet. Sealing the tub flange for tile: 3 methods - DIYTileGuy Step 2: Determine the room's center. 1. The product involves an extruded polystyrene foam panel, with specialized reinforcement materials on both sides. 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. Do you have any pictures? In my. 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. See the foam bench and the corners. Creative, C'mon over for a beer! RedGard can be applied to cement board panels in two ways: Roll it on the wall with a 3/4-inch nap roller or spray it on the wall. 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. Tile Shower SurroundCement Backerboard Location? ), Minimising the environmental effects of my dyson brain, Finite abelian groups with fewer automorphisms than a subgroup. When it comes to tile underlayment, your options can be categorized into three main classifications, each suitable for different tiling circumstances: Although cement board is the most commonly used underlayment for tile, Kerdi board is growing in popularity as a multifunctional tile substrate. 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. Thanks for contributing an answer to Home Improvement Stack Exchange! Waterproofing is an important aspect of any bathroom or wet-area installation. 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. 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. The boards come in three-foot by five-foot and four-foot by eight-foot panels, sized for efficient use in bathrooms. 3. It is designed to form a waterproof layer between cement board and tiles, helping create a watertight installation. The gridlines printed on the surface are beneficial for the installation process, also allowing for quick, neat cuts with a utility knife. Contact us: 888-472-4588 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. Cement board is the industry standard when it comes to tile substrates and the most preferred among professionals when installing porcelain or ceramic tile. Ditra is a 1/8-inch thick polyethylene membrane with a layer of anchoring fleece on the underside and a grid of square cavities on top. We sponge water onto the cement board. I imagine we could share some good stories. Find the website that's made specifically for you. I ended up putting up a thin, skim-coat of thinset all over the hardi board, letting it dry, and then putting up the kerdi. I don't want to use the Ditra membrane product but rather tiles directly over the cement boards. 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. When I tried putting up the first sheets, which were only 36" x 39", and even though I had SOAKED the hardi, to the point water was pooling on the floor, the thinset was already drying before I got the Kerdi up, and I couldn't get it to adhere properly no matter how hard I tried. For the floor, he should've put a mortar bed, then a membrane that goes over the curb, then another mortar bed. To create a watertight shower assembly, we installed Schluter's Kerdi membrane over the drywall, just as we would for tile.Write by:. 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. ;). Probably the simplest way is to caulk the gap with 100% silicone or a urethane sealant. Can you put Kerdi membrane over plywood? - KnowledgeBurrow.com How do I align things in the following tabular environment? Do I have to use Kerdi tape with Ditra membrane? Its essential to protect surrounding wall and floor surfaces from water or moisture damage that can occur in these areas. Sheets of glass mat gypsum are made from water-resistant silicone-treated gypsum, reinforced on both sides by fiberglass mats. What precautions should I take installing tile on a backerboard in an area surrounded by cement? Personally, I like standard drywall. Any recommendations? Mike Holmes uses backer on his show. We ended up sponging the Hardi and wetting and booking the Kerdi (a la wallpaper), and that made the installation go much smoother. I also used the Kerdi drain. 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. When screwed to the framing, thin strips of cement board fracture more easily than thin strips of fiber-cement. Kerdi Membrane Over Plywood ThePlywood.com Think about movement. I would get someone else. Foam-core tile backing board has two big advantages over other backer boards. 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). Welcome to the site. ".1) is is okay to use kerdi board instead of ditra on the floor? Using Kerdi Schlueter membrane with cement board. - Houzz With Kerdi Board you get to enjoy an effective product that is lightweight, easy to cut, waterproof, and leaves behind no dust! 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. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? It is important to overlap the edge of the membrane so that it covers slightly more than half of the drywall behind it. Like the example above. Sledge hammers for the floor, that might take a bit of time. Your real issues are the lack of proper corners on this shower. Cement board sucks up the moisture and as a result, the kerdi doesn't always stick as well to cement board. Problem with very thick cement board/ tile/bullnose edge, Steam Shower Slip Joint Detail - The secret is in the boarding stage. This makes Kerdi Board suitable for a wide variety of interior applications, including kitchen countertops. Kerdi does admit that you can use cement board. With that said, lets take a look at the importance of choosing the right tile substrate, the options you have, and which tile underlayment material you should choose Kerdi Board or cement board? Cement board is the most common and widely-known backer board. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? If you want a cement board, use Durock or Wonderboard. Kerdi membrane is a waterproofing material that is designed to be used in wet areas such as bathrooms and showers before tiles are installed. Another advantage is that the polyisocyanurate core of foam boards is waterproof. LONDON. Once youre sure that the membrane is completely dry, you can then move forward with tiling. #2. To line niche shelves, for instance. Will be replacing tub shower combination with tiled shower in my home. Allow the adhesive to cure for the amount of time recommended by the adhesives manufacturer. The problem is on the back side of the drywall, which is not protected. I agree that gypsum seems very questionable anywhere in the wet areas of a shower. Is a PhD visitor considered as a visiting scholar? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The mortar does . Thanks Paul! Can you remove tile from Kerdi membrane? It works well, is what Schluter recommends and I've never had an issue with it. It may take more than 1 beer:). Bathroom closets are often catch-alls for anything and everything remotely related to self-care. Yes. I guess I could save a few $ and laminate 1/4" drywall there instead.IOW, is hardi OK to level out the tub flange?Not that it matters, but the tile will be 3x6 carrara to the ceiling.Casey. What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? Your Get free, zero-commitment quotes from pro contractors near you. 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. This feature makes building the base structure much easier and more cost . Is this overkill? When installation is done properly, Kerdi membrane offers a waterproof barrier that can protect the plywood below from moisture. Manufactured by Schluter Systems, Kerdi Board is a multifunctional tile underlayment and construction panel, that can also be implemented for forming bonded waterproof assemblies with tile coverings. Cement board comes both in 1/4-inch-thick and 1/2-inch-thick versions. Using modified thinset on KERDI can be tricky and in some cases, it can cause issues. rev2023.3.3.43278. If your going to do the job do it right, and give professional advice pls. By the time you switch from the RG application to the Kerdi installation, it should be dry. Plus, if you use the mold and moisture resistant drywall, it will be extra insurance against mold. Kerdi-Board panels allow the installer to prepare and create a broad range . Hardi is definitely a "thirsty" substrate but will work, even without a primer of RedGard. 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. In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. What to use to flatten and prep wall before installing Schluter Kerdi membrane for tiling? But there are downsides. x 96 in. It installs with screws, then you tape the joints & screw holes and install your tile. 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. It is a fast process that is hard to mess up if you do it right. There are numerous ways to do this. It doesn't matter but you absolutely need to use both a substrate and a waterproofing membrane. Will use the Schluter Shower system. Thanks. It is designed to form a waterproof layer between cement board and tiles, helping create a watertight installation. They are designed to provide a waterproof, vapor-tight layer to the substrate, which in this case would be the cement board. 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.