kerdi membrane over cement board

Just wondering how effective is the tile on kerdi membrane vs the traditional cement backboard where tiles are glued directly to the drywall? Cement board sucks up the moisture and as a result, the kerdi doesn't always stick as well to cement board. After roughly two days I would fill the corner with silicone. Yes, Kerdi membrane can be installed over plywood. Cement board is the industry standard when it comes to tile substrates and the most preferred among professionals when installing porcelain or ceramic tile. What do you mean it doesn't adhere? To put things into perspective, consider that a tile floor is made up of three layers: the subfloor, the underlayment, and the tile surface you walk on. If you want to go to the extra effort of putting the membrane over drywall, there is no need to use greenboard. Once its applied, the last step is to follow up the waterproof coating with a waterproof sealant. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. I can take a bit of it off the wall and roll it into a ball. 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. Jessica considers herself a home improvement and design enthusiast. "thanks in advance :-) I know so little about this stuff, but when I watch videos (made by schluter-kerdi) everything looks so tidy and perfect - maybe that's not realistic'''" - Lisa Jasper It should look better than that and it's hard to tell but the wall stud spacing looks extreme and more than 16" I could not see if the screw heads where covered in the photos and in the one picture you can see that the screw and washer fitting where not covered. For all the substrates listed in this Handbook (e.g., gypsum board, cement backerboard, etc. "..2) the kerdi band isn't stuck flat -- the edges in some spots are wavy. 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. Make sure the floor is level in the shower. ), Minimising the environmental effects of my dyson brain, Finite abelian groups with fewer automorphisms than a subgroup. Find the website that's made specifically for you. This will help you achieve the best results and ensure the longevity of your project. In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane.

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