kerdi membrane over cement board

BTW the older Kerdi thread referencedwas excellent. When installing Schluter Kerdi Membrane over cement backerboard: Should I use Alkali Resistant Mesh Tape and thinset on the seams of the backer board (for long term durability to prevent each board moving independently thus preventing cracking) prior to installing the Kerdi membrane. It installs with screws, then you tape the joints & screw holes and install your tile. Connect and share knowledge within a single location that is structured and easy to search. This liquid waterproofing solution does more than keep water away, it also promotes tile adhesion and prevents cracking. First, you would waterproof with your favorite liquid waterproofing membrane of . Answer (1 of 3): Schluter recommends applying Kerdi over drywall for walls, however, my local building code will not permit this practice - the local building code requires cement backer on the walls of a shower enclosure, therefore, I have done this successfully many times. 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. Why you use cement board? GoBoard is a kind of backer board because the main elements of a backer board are cement, silica, fiberglass, etc. I used 1/2 Hardibacker board over the studs and then used the Kerdi membrane over the Hardi. 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. I guess that why it was so frustrating that cement board is just sooo thirsty. We are no longer supporting IE (Internet Explorer), Do not Sell or Share My Personal Information. The main types of cement board you could encounter are Fibre Reinforced Cement (FRC) board and gypsum board. Thanks to Mongo's earlier post, we knew we'd have to spritz the Hardi -- but found that even that wasn't quite enough. 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). What are the differences between "paperless drywall" and "cement board"? I have corrugated metal shower surround & grab bars. This will prevent water from entering from behind the membrane, and will provide a more secure waterproof layer. Here's how to get it right the first time, If you've got a steady hand, a few easy-to-find supplies and patience, you can install a tile backsplash in a kitchen or bathroom, Step 4 in swapping your tub for a sleek new shower: Pick your waterproofing materials and drain, and don't forget to test, Work with your contractors and installers to ensure a safe, stylish curb that keeps the water where it belongs, Get the benefits of a time-honored ritual without firing up the coals, thanks to easier-than-ever home steam systems, Landscape Architects & Landscape Designers, Outdoor Lighting & Audio/Visual Specialists, Out With the Old Tile: 8 Steps to Prep for Demolition, Convert Your Tub Space Into a Shower Waterproofing and Drainage, Steam Showers Bring a Beloved Spa Feature Home. Additionally, it is important to waterproof cement board before tiling, as the grout and tiles can help keep the board watertight. Even the tiling subs have moved away from mortar walls because of the labor cost and lack of craftsmen in the industry. 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. Cross your fingers and hope it's all OK. Not the best Kerdi Showcase. Hello D Zak! My understanding is that Schluter-Kerdi, being a sheet topical membrane, recommends just going with regular drywall instead of cement board but you can certainly use cement board as the substrate. Welcome to the site. I think it is engrained in me to do that so I forget to mention it. It only takes a minute to sign up. You troweled on thinset combing it out then pressed the Kerdi into place? Underlayment is designed to smooth out uneven areas of the subfloor and form a rigid layer that prevents the flooring from bending. If you want added info there's an old Kerdi thread here. 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. Yes, you need waterproofing behind shower tile. Additionally, seal the space around any pipes and fixtures that can be found in the shower. So long as the seams and joint areas are properly prepared, the panels can also provide waterproofing. When I do another shower I'll use real cement board, not Hardi-board. 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. New England. If he did the framing for the shower, then in order to measure for it correctly, he would need to know how thick the tile is so that he can avoid exactly this problem. is the contractor creating a waterproof schluter-kerdi shower? Fiber cement board is available in 1/4-inch and 1/2-inch thicknesses. Gettin' a little delirious. RedGard, on the other hand, is a liquid waterproofing membrane made by Custom Building Products. :/. If any is found, wait a few more hours and then re-inspect. Step 3: Apply Thinset. The site is called floorelf.com. "..2) the kerdi band isn't stuck flat -- the edges in some spots are wavy. When it comes to installation, a Schlter system is typically easier to install than a cement board, and it also allows for more design freedom as it does not require a traditional waterproof layer. If youre not careful, the boards can also leave behind abrasive sandy crumbs that can cause damage to your shower base or tub. that's home depot homeowner installation method. Need help liner vs liquid membrane question. Make sure to use multiple coats, if necessary. You still use metal lath, but then mix bags of powder and pour the soupy mix onto the floor. Hang the cement boar. We tried adding water to the thinset, we tried using a larger notch trowel, but nothing seems to make the Kerdi stick. Self-leveling underlayment has many of the same advantages as a dry-pack mortar bed but doesnt require as much skill to install. 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? 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). 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). 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. The colour is different. 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. Prime first to create a flat, uniform surface that is free of dust, grease and other debris. Mike Holmes uses backer on his show. To waterproof Hardie board, you should choose a quality sealer that is designed for use on cement-based sidings. DensShield is one common brand. 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 . Sweeby-Can you clarify- I undestood that the thinset would tend to dry out from the thirsty hardi or skim over from the air; so how does booking the Kerdi help with the first? Connect and share knowledge within a single location that is structured and easy to search. ps, now that you don't need it anymore you can throw that useless cheap piece of crap magnesium float my way. Just wondering how effective is the tile on kerdi membrane vs the traditional cement backboard where tiles are glued directly to the drywall? Thanks to all for the feedback. I used 1/2 Hardibacker board over the studs and then used the Kerdi membrane over the Hardi. Do the prefab Schluter niches like the double unit 12 by 28shelf have a built in pitch to the bottom and middle shelves to drainoff water as shown in niche that you built in that thread? It fell right off? Kerdi-Board panels allow the installer to prepare and create a broad range . Required fields are marked *. 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? And we are using a drippy mixture, it slides off the trowel. Kerdi's systems are fairly reputable. Like the example above. Finally, it is important to remember that any thin-set that has been exposed to moisture must be replaced. Such membranes typically come in a brush or a roller form and can help create a durable barrier against water infiltration. This will help protect the cement board from water damage, and is often a specific type of coating designed for use with cement boards. If you can paint a wall, you can use RedGard. Houzz utilise des cookies et d'autres technologies de suivi similaires pour personnaliser mon exprience utilisateur, me proposer du contenu pertinent et amliorer ses produits et services. Greenboard is the same as regular drywall. This allows for future compression and an area at the corner where things are more forgiving. And by 'booking the Kerdi' I mean we put it in the bathtub, sprayed it with the handshower, then booked it (just like wallpaper). I will say that to is easier to put the membrane over drywall than cement board. As fiber cement board is similar to regular cement board, it makes sense to choose the one that is cheaper or more readily available. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. After installing your mud bed, make sure it is fully cured before applying Aquadefense. It is lightweight and made of expanded polystyrene. By the time you switch from the RG application to the Kerdi installation, it should be dry.

Senior Living Apartments Based On Income Houston, Tx, Terah Crabb Penhollow Husband, Letter From Birmingham Jail Allusions Quizlet, Articles K