kerdi membrane over cement boardssrs fill color based on multiple values

More waste, yes, but I think you have to have a LOT of practice to hang those huge sheets like mongo does. I just a few weeks ago put kerdi on top of hardi-board in my shower and it was PAINFUL! Since my guys and I will be doing this for the first time next week, I 'd like to take advantage of your 'learning curve.' 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. Step 1: Measure the area. 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. However, a cement board is generally easier and less expensive to replace if a repair is needed. Kerdi can even be installed over drywall. In a perfect job, it will waterproof. Cement board comes both in 1/4-inch-thick and 1/2-inch-thick versions. 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. 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. The difference between the phonemes /p/ and /b/ in Japanese. The 1/4-inch-thick board is typically used on floors and countertops. 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. 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)). Learn more about Stack Overflow the company, and our products. 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! First, its super lightweight compared with the rest. Cross your fingers and hope it's all OK. Not the best Kerdi Showcase. Hello D Zak! modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. On top of that, fiber cement board is even more brittle than standard cement board, so you have to be extra careful to keep screws at least an inch from the edge to avoid breaking the board. There's a really great manual (with diagrams) that makes this all easier to understand. I would fear leaks in all corners of this shower. Kerdi Membrane Over Greenboard (Is It Recommended?) Asking for help, clarification, or responding to other answers. Yes, you should prime drywall before installing KERDI in order to ensure proper adhesion and a successful installation. How do I connect these two faces together? I guess that why it was so frustrating that cement board is just sooo thirsty. A place where magic is studied and practiced? Once all areas have been properly waterproofed, the walls can be tiled and grouted to create a waterproof surface. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'remodelormove_com-mobile-leaderboard-1','ezslot_24',166,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-mobile-leaderboard-1-0');If cement board is not waterproof, it can negatively impact the integrity of the tile that is installed on top of it, and can lead to a variety of issues. Kerdi Board vs. Cement Board: What Are The Major Differences? Learn more about Stack Overflow the company, and our products. 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 . Find the website that's made specifically for you. Their lighter weight makes moving panels around during installation a cinch, which is a far cry from the heft of conventional cement board. Sledge hammers for the floor, that might take a bit of time. Kerdi Membrane Installation (Step-by-Step Installation Guide) This thread is 9 years old and it's the Hardi board that's thirsty not the Kerdi. liquid waterproofing (redgard) over durock cement board - bathroom The thickness of the tile is important, and should be known, but not because it changes the method of building. KERDI features a modified polyethylene (PEVA) core with non-woven polypropylene on both sides to anchor the membrane in the thin-set mortar. However, if installed on drywall, it only protects one side. We tried adding water to the thinset, we tried using a larger notch trowel, but nothing seems to make the Kerdi stick. "..2) the kerdi band isn't stuck flat -- the edges in some spots are wavy. We use a pump action garden sprayer and its usually dry by the time we clean the sprayer. Once this is done, continue the installation by following the directions for the particular Kerdi product being used. The thin-set mortar should be mixed to a fairly dry consistency and then spread on the surface with a 1/4 inch square notch trowel. Schulter Ditra is manufactured by Schluter Systems and is a 1/8 thick polyethylene uncoupling membrane that is specifically designed for tile installations. If you are good with a trowel and understand how to set up and use screeds as a guide for leveling or forming the mortar, pouring a traditional mortar bed may be a good alternative to tile backer board, especially on uneven or sloping floors. What was the indicator that let you know that spritzing was not enough, and that you needed to 'sponge' the Hardi? ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. When it comes to selecting thinset for cement board, there are a few important factors to consider. Following the instructions for the product being used and ensuring that all of the necessary steps are followed will help to ensure a successful installation. Blocking should be constant across this area when openings are larger than your fist. Shower walls construction made easy with Kerdi-Board panels. - La Tuilerie Then cement, sand and water are mixed together to a crumbly consistency and floated over the lath to form a flat surface. One of the major benefits of opting for Kerdi Board over cement board is the ease of installation. craft paper or plastic is great if the inspector wants it but it is (should be) doing nothing for a tub surround that has HB/redgard/thinset/tile. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? Self-leveling underlayment has many of the same advantages as a dry-pack mortar bed but doesnt require as much skill to install. Why do you think each board should be able to move at all let alone independently? Using self-leveling underlayment takes careful prep work. It worked well - just like wallpapering. Kerdi membrane prevents water damage and mold development. One thing I do like fibercement (Hardie) for is when I need thin strips of cement board. Hang the cement boar. #2 - Your suggestion has plenty of merit though. RedGard, on the other hand, is a liquid waterproofing membrane made by Custom Building Products. Not even the plumber's fault as it was just a bad valve. I've never had a failure. Can you put Kerdi over cement board? - TipsFolder.com To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar must be used to construct all KERDI seams to ensure watertightperformance of the system. KERDI BOARD: Waterproof Your Shower in 1 Day - Home Repair Tutor Jun 21, 2017. The tub flange can really be a pain in the butt when installing a tile tub surround. There is a product called Kerdiboard you might want to look into. You'll know the RG is dry when it turns reallllly dark bright red as opposed to the pinkish color when applied. Maybe try another brand of thinset? Foam-core tile backing board has two big advantages over other backer boards. Putting this stuff on walls is difficult and time . DensShield is one common brand. 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. Yup! How can I find out which sectors are used by files on NTFS? What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'remodelormove_com-leader-2','ezslot_21',165,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-leader-2-0');Once the seams are sealed, lay down a waterproof coating to the floor and walls of the shower space. 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. How to Install Kerdi Membrane - YouTube Yes, Kerdi membrane can be installed over plywood. The great thing about Kerdi Board is that it is lightweight and easier to maneuver. My floor tiles are 2" x 2"." - Lisa Jasper No - you can not use Kerdi Board on the floor. It is lightweight and made of expanded polystyrene. It is a pliable waterproofing membrane that also doubles as a vapor retarder. Dean, our tile consultant, says glass mat backer board is his first choice due to the ease of installation, cost, and because his workers like it. For indoor projects and gypsum board, thinset with a latex acrylic modifier is ideal. Finally, use a roller or brush to ensure that the membrane is secure and has no wrinkles or air bubbles. We tried soaking the cement board and applying the kerdi in small sections. Why you use cement board? This will include installing its components, such as drain plate and drain collar, as well as Kerdi Band for further protection of seams and corners. Cement board is known to be very heavy and somewhat difficult to cut. It costs more but it;s worth it for the ease of install IMO. x 5-ft. and 3 x 5-ft. sheets of cement board are sized for efficient use around bathtubs and showers. Should I use Kerdi membrane or cement backerboard? Wedi vs. Kerdi Waterproof Membranes: Which Is Better? There are numerous ways to do this. Thanks to Mongo's earlier post, we knew we'd have to spritz the Hardi -- but found that even that wasn't quite enough. Fiber cement board is available in 1/4-inch and 1/2-inch thicknesses. If there is no blocking behind the seam, i would just tape prior to installing the membrane, the thinset will fill the seam and embed the mesh. Ready to join the 100,000+ homeowners matched with pros? This will help protect the cement board from water damage, and is often a specific type of coating designed for use with cement boards. We also found that using a heavy rolling pin worked wonders for really setting the Kerdi. Following the correct application of Kerdi membrane over cement board will ensure a successful waterproofing installation and lasting results for your tile project. Out of curiosity, why are any of you suggesting backerboard at all? Installation. Using Kolmogorov complexity to measure difficulty of problems? GoBoard Vs. Kerdi For Your Shower: In-depth Comparison Yes, Hardie board needs to be waterproofed. Kerdi's systems are fairly reputable. To install Kerdi Membrane, start by applying Schulter ALL-SET mortar (or similar) to your cement board substrate using a 1/4" x 3/16" V-Notch Trowel. 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. Creative, C'mon over for a beer! Fiber cement board is a variation of cement board that is made from compressed cement and sand and reinforced with wood fibers throughout. 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. Kerdi board, on the other hand, is an extruded polystyrene foam panel. The perfect fold is tricky and many of my first steam showers where built without the sealed slip joint. All it takes is the right preparation. Though, each product comes with its own individual characteristics, and pros and cons. Thanks to all for the feedback. . The use of modified thinset adhesive could result in an inadequate bond and could lead to possible delamination. Such membranes typically come in a brush or a roller form and can help create a durable barrier against water infiltration. Keep in mind, that, just to be safe, most professionals choose to install a waterproofing membrane on top of the cement board when installing in wet locations like tub surrounds or showers. They can be installed on any type of support and can even be used to create partitions, with no structural support required. First Kerdi can be installed on drywall or cement board. To create a watertight shower assembly, we installed Schluter's Kerdi membrane over the drywall, just as we would for tile.Write by:. The site is called floorelf.com. But there are downsides. Yeah it seems that the only products that will be compatible with cement board and the kerdi membrane are bostik ditra-set and schluter all-set (or one of schluters other products). What I would be most scared off is the fact that no inside or outside corners appear to have been used. How long should I wait after painting on the Redgard before I try to reapply the membrane? Kerdi Membrane is a product of Schluter systems. Wedi Board vs Cement Board vs Kerdi Board - The Ultimate Home Living Blog 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 clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. In normal residential use I wouldn't worry about it. Step 2: Determine the room's center. If you want added info there's an old Kerdi thread here. Not to mention, its warrantied by Schluter, giving you the ultimate peace of mind. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. When installed, Kerdi Board creates a substrate that is level, flat, square, plumb, and dimensionally stable. 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 cleaning thinset off of Schluter membranes, the manufacturer recommends using a wet sponge and taking care to avoid any scoring or inconsistencies on the surface of the membrane. Additionally, you can use KERDI-BAND around corners, seams, and joints to help with a waterproof installation. x 60 in. How "tidy" does the kerdi band need to be? Cement board sucks up the moisture and as a result, the kerdi doesn't always stick as well to cement board. You are telling someone "to have" an artistry that not only takes art skills, knowing how to mix mortar for different situations, and a good amount of practice. 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. Will use the Schluter Shower system. We sponge water onto the cement board. Backerboard plus a waterproofing membrane like Redgard is all that is needed for tub surrounds with thinset then tile. Best Cement Boards for the Shower - The Spruce The waterproof membrane isn't a substitute for the substrate. By: Author Olin Wade (Remodel or Move Stuff). The Kerdi-Line prefab pans and drains make me feel way more comfortable with the waterproofing. 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. Installation instructions vary depending on the type of Kerdi membrane being used, but typically the membrane is applied directly to a clean, dry plywood surface that is free from dust, dirt, and other debris. Thanks. A good rule of thumb is 24 hours per inch of thickness, then one more day on top of that to be sure. 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. Yes, KERDI membrane will stick to cement board. We tried soaking the cement board and applying the kerdi in small sections. First, felt paper is stapled to the floor and covered with expanded metal lath. Is it Sinful to put Kerdi over Hardi-backer? - Houzz The Pros and Cons of Various Tile Backers | Family Handyman It fell right off? Once the adhesive has been applied and has had time to properly cure, then the KERDI membrane can be applied to the wall. 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. With cement board as a substrate, the key is to ensure proper installation of the membrane. ), Schluter SET, ALL-SET, FAST-SET or an unmodified thin-set mortar is recommended. It is a topical waterproofing layer that is put over the substrate to keep water from getting to the wood frame and nails. Finally, it is important to remember that any thin-set that has been exposed to moisture must be replaced. This will prevent water from entering from behind the membrane, and will provide a more secure waterproof layer. When applying the thin-set, it should be applied in such a way that it fully fills any empty space between the Tile and Schluter product and is solid enough to support the weight of the tiles being installed. While cement board may be the most common and widely-known tile substrate, Kerdi Board is giving it a run for its money. Needed to interject a little "amateur humor. I used this to seal a 3 1/2 by 6 1/2 foot shower with 7 foot walls. To ensure that the Kerdi is completely dry prior to tiling, inspect the inside of the membrane for any signs of moisture or condensation. With Wedi products, the compound curves are easy to produce quickly. I think it is engrained in me to do that so I forget to mention it. If you want to go to the extra effort of putting the membrane over drywall, there is no need to use greenboard. If installing large format tiles (over 15"), be sure to give the Aquadefense at least 8 hours to cure first. The manual can be found here: http://floorelf.com/waterproof, I would say unless you are experienced in working with Schluter-Kerdi waterproofing membrane kit, then I would say work with an easier waterproofing approach, either liquid waterproofing or a combination of liquid and traditional waterproofing (plastic covering the wood frame). Kerdi membrane can be used on cement board, drywall, and, as you may have guessed- greenboard. 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. The cement board needs to be clean, free of debris, and dry. I think the first one I used was cheap and that was part of the problem. The niche' intermediate shelf isn't actually attached, to enable specific placement for each unique tiling application. builder, anti-builder, rebuilder -- Retired Moderator. vegan) just to try it, does this inconvenience the caterers and staff? Schluter Kerdi 108 Sq Ft Waterproofing Membrane - amazon.com The Schlter system tends to be more durable than a cement board, but it also depends on the particular application and the weather. 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. Since KERDI is impervious, it does not deprive the mortar of its moisture. The taping knife at a low angle makes an enormous difference, and I'm very grateful for that hint. 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. 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. 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. Once youre sure that the membrane is completely dry, you can then move forward with tiling. What changes do you suggest to make Bathroom looks more updated? How to prep a shower for tile with Schluter Kerdi - TwoFeetFirst I appreciate your help and your quick response. Kerdi is not a user friendly product, and when you shrink your working time down it is downright stressful. 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. HardieBacker with Hydrodefense instead of Kerdi Board? : r/DIY - reddit I used 1/2 Hardibacker board over the studs and then used the Kerdi membrane over the Hardi. Any recommendations? 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. Foam-core tile backing board has two big advantages over other backer boards. What precautions should I take installing tile on a backerboard in an area surrounded by cement? For the floor I make a dry mix mud base and then the Kerdi membrane. Step 6: Choosing the Next Tile. The product involves an extruded polystyrene foam panel, with specialized reinforcement materials on both sides. Schluter Kerdi on regular drywall - GreenBuildingAdvisor I can take a bit of it off the wall and roll it into a ball. Fixing that is not that easy though. Then you can apply a thin layer of KERDI-FIX to the board, the membrane over top . Ditra is manufactured in a 3'3 width and comes in various roll lengths (54sf, 150sf, and 323 sf). 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. Bulk update symbol size units from mm to map units in rule-based symbology. You probably have to go to a big box store's special order desk or find a specialty tile supplier to find it. Hi David. It also helped me to work in smaller sheets. Step 8: Allow to dry. Kerdi does admit that you can use cement board. This is the traditional tile backer. On a vertical surface, very little moisture . Caulk the gap. rev2023.3.3.43278. A square foot of half-inch thick cement board weighs roughly 40 ounces, while the equivalent area of a Wedi board weighs about 75% less. This allows for future compression and an area at the corner where things are more forgiving. is that because water doesn't really hit that area?" - Lisa Jasper That's pushing it but should be fine. Depending on factors such as room temperature, humidity, and ventilation in the area, this could take anywhere from 1 to 3 days. It is important to waterproof Hardie board to make it more water-resistant, as well as to protect the materials from the elements. When doing so, it is important to ensure that the drywall surface is clean and free of dust, grease, and loose paint. 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. 173 upvotes. 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. bathroom - Kerdi Membrane over cement backerboard - Home Improvement Another advantage is that the polyisocyanurate core of foam boards is waterproof. When having to put it up on the wall or measure it for size, you will find that you can get the exact measurements you need without much trouble. First Kerdi can be installed on drywall or cement board. RedGard can be used on a wide range of interior and exterior surfaces. Sheets of glass mat gypsum are made from water-resistant silicone-treated gypsum, reinforced on both sides by fiberglass mats. As fiber cement board is similar to regular cement board, it makes sense to choose the one that is cheaper or more readily available. See the foam bench and the corners. To line niche shelves, for instance. When I tried to use the edge of my trowel [per schlutter video] I could see I was pulling a lot of the 'felt' off the backer. Why is there a voltage on my HDMI and coaxial cables? Important to overlap seams in a shingle method. 120 sq feet including the floor. We tried adding water to the thinset, we tried . You are wise to use a cement board. I want to mount a cast iron bathtub, but not pull down my 1905 plaster and lath.

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