The cement board needs to be clean, free of debris, and dry. that's home depot homeowner installation method. Go with smaller bags or only mix half. Or will the Kerdi membrane (with seams taped with kerdi band) prevent each board from moving independently? Why does the plumbing rough need to be moved? Portland cement-based unmodified thin-set mortars are dependent on the presence of moisture for hydration in order to gain strength.
GoBoard is a kind of backer board because the main elements of a backer board are cement, silica, fiberglass, etc. I would avoid Hardi, as Avanti is right that it is thirsty. It works well, is what Schluter recommends and I've never had an issue with it. 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. Mike Holmes uses backer on his show. Given the complexity, its easy to see why even experienced tile setters avoid dry-pack mortar and use backer board instead when they can. And second, since it's foam, the board is super easy to cut with just a utility knife. RedGard, on the other hand, is a liquid waterproofing membrane made by Custom Building Products. It is important to waterproof Hardie board to make it more water-resistant, as well as to protect the materials from the elements. We also found that using a heavy rolling pin worked wonders for really setting the Kerdi. 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. 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. Unlike cement boards, you can bend this material without it breaking. While cement board and grout are not waterproof, Kerdi is and can even be directly installed over drywall. Kerdi on shower curbs - JLC-Online Forums (3ft-3in wide)Or will the Kerdi membrane (with seams taped with kerdi band) prevent each board from moving . Firstly, it is important to ensure the wall is adequately prepared and that it is smooth, flat and free of defects. Do I have to use Kerdi tape with Ditra membrane? Kerdi Board is expensive, but I can justify it because it saves time, and it's a joy to use. After roughly two days I would fill the corner with silicone. What is a word for the arcane equivalent of a monastery? Once the membrane is in place, it can be sealed and reinforced with Kerdi-Fix sealant, Kerdi band, and Kerdi-Drain for added waterproofing strength. 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. We mixed the thinset, it wasn't as smooth as the utube video, but it was close, and we gave it ten minutes. This means that even if your waterproofing system leaks, the cement board will remain intact. All shower/tub areas should have concrete board (I prefer hardiboard). This feature makes building the base structure much easier and more cost . 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. If you can paint a wall, you can use RedGard. Hardie board is a cement-based siding product that is water-resistant, but not waterproof. 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. While cement board is a reliable tile underlayment, it isnt completely waterproof only water-resistant. builder, anti-builder, rebuilder -- Retired Moderator. The fastest method [for me and possibly other dilettants] is to stroke the knife at a diagonal to the comb marks, top down, center out, pushing all the air before you with short, overlapping strokes.-Thinset needs to be pretty darn wet: Needs to stay put when combed, but should be soft and shiney. Needed to interject a little "amateur humor. Well, I'm going to give you three different ways to seal the backer board at the tub flange. In jobsite conditions and over a long time, who knows. This is often accomplished by filling any holes and cracks in the wall with appropriate spackling or patching material. Yes, it is possible to put Kerdi over regular drywall. Will use the Schluter Shower system. Furthermore, if another trade, such as the shower glass installers, makes a mistake then you'll be . 120 sq feet including the floor. Will add it in. And second, since its foam, the board is super easy to cut with just a utility knife. If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? In my. On a vertical surface, very little moisture . 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. Connect and share knowledge within a single location that is structured and easy to search. Using self-leveling underlayment takes careful prep work. Cement board is a bit better, but you need to spray either one before applying the mortar so that it doesn't "skin over" before you can get the Kerdi up. Can I install Kerdi board just on the walls of my shower and use a PVC membrane on the floor? 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. How to follow the signal when reading the schematic? The main types of cement board you could encounter are Fibre Reinforced Cement (FRC) board and gypsum board. 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. My floor tiles are 2" x 2"." - Lisa Jasper No - you can not use Kerdi Board on the floor. Kerdi Board is also significantly lighter in terms of weight than cement board, meaning they can be transported and lifted into place with ease evening hauling five panels at a time should be no problem. Plus, most self-leveling formulas harden very fast, so you have to plan carefully so you can mix and pour quickly. It only takes a minute to sign up. Can Kerdi membrane be installed over painted drywall? if you go with vapour barrier, then cement board. Continuing Education for Architects & Designers. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Your email address will not be published. The tub flange can really be a pain in the butt when installing a tile tub surround. Installing cement board involves placing the boards atop a layer of thinset adhesive, a process known as bedding. Recovering from a blunder I made while emailing a professor, Minimising the environmental effects of my dyson brain. Waterproof showers are the trend today, so RedGard is an excellent alternative to cement boards that act as vapor barriers. RedGard On Hardibacker Board. Fixing that is not that easy though. 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. Schluter Kerdi on regular drywall - GreenBuildingAdvisor Step 3: Apply Thinset. @JimmyFix-it - You are right. I always install it over cement board or backerboard, never over drywall, even blueboard or the mold resistant greenboard. Properly waterproofing a shower area sharing a living room wall, Can I use cement accelerator to decrease setup time of modified thinset. I like to use a garden sprayer to keep the thirsty Kerdi wet. Additionally, all seams should be sealed with Kerdi Fix and covered with fleece. Can you remove tile from Kerdi membrane? This is necessary to ensure that the membrane will adhere properly to the drywall. 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. One of the major benefits of opting for Kerdi Board over cement board is the ease of installation. Another advantage is that the polyisocyanurate core of foam boards is waterproof. Tile Shower SurroundCement Backerboard Location? On the other hand, a Schlter system offers improved thermal insulation, which can help to reduce heating costs. 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. Schluter says that the Kerdi membrane and tile can be installed over standard gypsum wall board without any problems. Kerdi-Board 1/2 in. x 48 in. x 96 in. Building Panel You have to seal every little hole in the floor so the underlayment doesnt seep into spaces below. For indoor projects and gypsum board, thinset with a latex acrylic modifier is ideal. Hi.I have a unique situation. Rolling pin, good, now I can throw away my magnesium float.LOLCasey. 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. Sealing the tub flange for tile: 3 methods - DIYTileGuy Cement board is the industry standard when it comes to tile substrates and the most preferred among professionals when installing porcelain or ceramic tile. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'remodelormove_com-mobile-leaderboard-2','ezslot_25',167,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-mobile-leaderboard-2-0');Waterproofing should be done prior to the installation of any tile including behind the shower tile. In a perfect job, it will waterproof. Fiber cement board is available in 1/4-inch and 1/2-inch thicknesses. The completed assembly takes the place of more traditional backer board when installed over 3/4-inch wood subfloors. Additionally, seal the space around any pipes and fixtures that can be found in the shower. What to use to flatten and prep wall before installing Schluter Kerdi membrane for tiling? 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.' To waterproof Hardie board, you should choose a quality sealer that is designed for use on cement-based sidings. To create a watertight shower assembly, we installed Schluter's Kerdi membrane over the drywall, just as we would for tile.Write by:. I want to mount a cast iron bathtub, but not pull down my 1905 plaster and lath. I've seen preferences regarding HardieBacker and the cement board products such as Wonder Board. Various products can be used to waterproof shower walls such as water-resistant drywall and cement backer boards. 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. You just need a hammer and wonderbar for the walls. Underlayment is designed to smooth out uneven areas of the subfloor and form a rigid layer that prevents the flooring from bending. Backerboard plus a waterproofing membrane like Redgard is all that is needed for tub surrounds with thinset then tile. Water-resistant gypsum board, or green board, was used in the past as a tile backer but is no longer recommended, mainly because better products are available. Sloped Shower Tray KST1220/1525 - The Home Depot. Thanks Paul! Yes. The difference between the phonemes /p/ and /b/ in Japanese. My idea is to block in and install the tub in the existing corner, erect the new wet wall, and use hardi-backer to shim the wall out over the tub flange, then apply kerdi over the whole thing.Does kerdi take offense at being installed over hardi? Step 7: Cut the Tile. The cement board needs to be clean, free of debris, and dry. When it comes to using thinset with Schluter products, the Schluter-Systems website recommends using unmodified thin-set mortars specifically designed for use with Schluter membranes. An additional layer of sealant can also be applied on the seams for extra protection and water resistance. Their lighter weight makes moving panels around during installation a cinch, which is a far cry from the heft of conventional cement board. If so, that means breaking up the floor pan. Creative, C'mon over for a beer! The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. I hang Kerdi on cement board and fibercement board all the time. I set the Kerdi with my hands, pat it into the thinset with my hands, then go over it with a 4" taping knife held at a low angle to embed the Kerdi in the thinset. The Kerdi/Daltile TS underlayments do have some valid applications such as in steam shower installations where a bullet proof vapor barrier is required. If done according to manufacturers instructions, it will seal nicely. ps, now that you don't need it anymore you can throw that useless cheap piece of crap magnesium float my way. 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. ;). One thing I do like fibercement (Hardie) for is when I need thin strips of cement board. Such membranes typically come in a brush or a roller form and can help create a durable barrier against water infiltration. All shower/tub areas should have concrete board (I prefer hardiboard). x 5-ft. and 3 x 5-ft. sheets of cement board are sized for efficient use around bathtubs and showers. 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. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. However if installed on drywall it is only protecting one side. When screwed to the framing, thin strips of cement board fracture more easily than thin strips of fiber-cement. The Ditra uncoupling design is lightweight, durable, and minimizes the possibility of cracked tile and grout. Finally, make sure to select a thinset that is appropriate for the job, check the manufacturers recommendation, and always follow the instructions on the product label. In normal residential use I wouldn't worry about it. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Schulter Ditra is manufactured by Schluter Systems and is a 1/8 thick polyethylene uncoupling membrane that is specifically designed for tile installations. What? Shouldn't take too long, maybe an hour or so. Overall, waterproofing behind and around shower tile is a critical part of any installation to ensure that the area is adequately protected from water and moisture damage. If I go the kerdi membrane route, do I still need to tape the joints before installing the kerdi membrane . . 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. Cement board is particularly vulnerable to water damage, so waterproofing can help protect it and help it last longer. Kerdi board, on the other hand, is an extruded polystyrene foam panel. It doesn't matter but you absolutely need to use both a substrate and a waterproofing membrane. This will help to ensure that all drywall is completely covered. What precautions should I take installing tile on a backerboard in an area surrounded by cement? They are square. Foam-core tile backing board has two big advantages over other backer boards.