Both may be effective substrates, but Kerdi Board boasts significant advantages. 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. Waterproof showers are the trend today, so RedGard is an excellent alternative to cement boards that act as vapor barriers. Additionally, it is important to waterproof cement board before tiling, as the grout and tiles can help keep the board watertight. builder, anti-builder, rebuilder -- Retired Moderator. Here are the fundamentals of tile installation over cement board. It costs more but it;s worth it for the ease of install IMO. Je peux rejeter les cookies non essentiels en cliquant sur Grer mes prfrences . Whether or not you need a Kerdi membrane is a factor of use. With cement board as a substrate, the key is to ensure proper installation of the membrane. However, the answer you provided above suggests that the OP could omit a waterproof membrane, that I. You provide the pitch during the tile set. Installation is simple- just trowel a layer of thin-set adhesive on the floor and embed the mat in it, then fill the cavities with thin-set. I just a few weeks ago put kerdi on top of hardi-board in my shower and it was PAINFUL! You are wise to use a cement board.
Kerdi vs Redguard cost breakdown. : r/HomeImprovement - reddit Run a damp towel over the cement board surface to dust . I used 1/2 Hardibacker board over the studs and then used the Kerdi membrane over the Hardi. DensShield is one common brand. Step 4: Place the Tile. link to What Kind Of Paint For Garage Walls? Continuing Education for Architects & Designers. I always install it over cement board or backerboard, never over drywall, even blueboard or the mold resistant greenboard. This will prevent water from entering from behind the membrane, and will provide a more secure waterproof layer. 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. Not to mention, its warrantied by Schluter, giving you the ultimate peace of mind. It is important to seal any imperfections in the drywall to ensure a long-lasting installation and to minimize water infiltration. When it comes to selecting thinset for cement board, there are a few important factors to consider. You're correct if you use the shluter kerdi membrane you do not use a vapour barrier since it creates a sandwhich effect that doesn't allow the substrate . Gettin' a little delirious. ".1) is is okay to use kerdi board instead of ditra on the floor? KERDI was developed as a waterproofing membrane to be used in . This allows the cement to properly hydrate, resulting in a strong, dense bond coat. This will help to ensure that all drywall is completely covered. Do I have to use Kerdi tape with Ditra membrane? Overall, putting Kerdi over regular drywall can be done, with the proper steps in place to properly install the membrane and its components. It is also essential that cement board joints and fasteners be sealed and waterproofed with the Kerdi Fix sealant to help prevent water from leaking into the wall and floor cavities. The Kerdi-Line prefab pans and drains make me feel way more comfortable with the waterproofing. Applying a conventional cement backer board to such a structure is almost impossible. Too little, and the kerdi will never show you gray, no matter how you sweat. I also used a larger sized trowel than the one recommend by Schluter. 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. This will help you achieve the best results and ensure the longevity of your project. First Kerdi can be installed on drywall or cement board. You don't want to block off the end of the air chanel and trap half a sheet worth of air under there.-Not paying attention to the direction of my knife.
What type of thin-set mortar should I use when installing Schluter-KERDI? Is it Sinful to put Kerdi over Hardi-backer? - Houzz The cement board needs to be clean, free of debris, and dry. Are there tables of wastage rates for different fruit and veg? 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. 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. 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. 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. Kerdi Board is expensive, but I can justify it because it saves time, and it's a joy to use. 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. Caulk the gap. 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.
Ideally the DalSeal TS would fold into the gap between the wall and ceiling concrete board.
Why does drywall work in a Kerdi Shower? - Terry Love Plumbing Advice You peeled it off? :/. Seams and joints should also be waterproofed and caulked to prevent water from seeping through. I would fear leaks in all corners of this shower. Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin? 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. Their lighter weight makes moving panels around during installation a cinch, which is a far cry from the heft of conventional cement board. When installed, Kerdi Board creates a substrate that is level, flat, square, plumb, and dimensionally stable. The grid lines on the surface are incredibly helpful for installation and making neat cuts. Calculating probabilities from d6 dice pool (Degenesis rules for botches and triggers). 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. 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. How to adhere edge of bullnose tile to drywall as trim for shower/tub surround. When applying thin-set mortar, the manufacturers instructions should be followed closely. What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? With Wedi products, the compound curves are easy to produce quickly. If any is found, wait a few more hours and then re-inspect. 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. However if installed on drywall it is only protecting one side. After today's tutorial, you'll gain the confidence to transform your old bathroom into a new space. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. Yes, you should prime drywall before installing KERDI in order to ensure proper adhesion and a successful installation. When installing KERDI with . You have to seal every little hole in the floor so the underlayment doesnt seep into spaces below. A successful tile installation largely depends on the substrate that the tile is attached to. Can be cut to size easily using a utility knife. Properly waterproofed Hardie board should last for many years. This is necessary to ensure that the membrane will adhere properly to the drywall. Both Kerdi Board and cement board are designed to smooth out uneven spots on the installation surface, create an unbending layer that wont flex underfoot, and also provide a waterproof barrier. Modified thin-set mortars must dry for the polymers to coalesce and form a hard . Thanks to Mongo's earlier post, we knew we'd have to spritz the Hardi -- but found that even that wasn't quite enough. Will use the Schluter Shower system. MAPEI makes products for each step of the remodel process, giving you a single source solution, and only one phone number to call if you need assistance! In normal residential use I wouldn't worry about it. Our thinset was more watery than the videos, but it still managed to dry out quickly, even in the time it takes to apply the small corners in our shampoo niche. is the contractor creating a waterproof schluter-kerdi shower? 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. Learn about the options in exterior siding before you choose, Before you pick up a single tile, pull from these tips for expert results, Slip resistance, curves and even the mineral content of your water all affect which tile is best for your shower, We help a Houzz user ask all the right questions for designing a stylish, practical and safe shower bench, This isn't a light DIY project: You'll need heavy-duty tools and plenty of protection for your home and yourself, In steamy quarters, tile needs to stand up to all that water and vapor in style. But a mortar bed does have advantages. 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.
HardieBacker with Hydrodefense instead of Kerdi Board? : r/DIY - reddit This creates a strong, waterproof tile backer that also functions as an uncoupling membrane. Probably the simplest way is to caulk the gap with 100% silicone or a urethane sealant. The tub flange can really be a pain in the butt when installing a tile tub surround. Its important to note that Kerdi membrane is not a structural base layer, so plywood should be installed and reinforced as necessary based on load requirements. Kerdi can be installed first on drywall or cement board. New England. To properly seal a cement board for a shower, its important to first properly prepare the surface. Yes, it is possible to put Kerdi over regular drywall. Using self-leveling underlayment takes careful prep work. Will be doing a bathroom gut and will be laying durock cement board over plywood sub floor. That's the way us "Tile Guys" do it all the time. Thanks.
Schluter Kerdi 108 Sq Ft Waterproofing Membrane - amazon.com