Waterproof, multifunctional tile substrate and building panel. You can also use Schluter-KERDI, a membrane made of polyethylene. DITRA allows for ceramic tile application over single-layer plywood or OSB subfloors on joists spaced up to 19.2" (488 mm) o.c. Also, apply the acrylic mastic between the If you must tape Schluter-KERDI over Solid Backing for Walls, Scott McGillivray on Waterproofing Principles using Schluter-Systems, How to Waterproof Connections to Fixed Building Elements. We use cookies to ensure that we give you the best experience on our website. This site is protected by reCAPTCHA and the Google. Free-space on the underside of the matting provides a route for excess moisture and vapor to prevent damage to the tile layer above. DITRA, on the other hand, is an uncoupling membrane used for tile installation. Yes! Silicone or sand caulk in the corners since its a change of plain. How are you going to handle the butt joints perpendicular to the joists of your new and old OSB? Go with a masonry bench or look into the better bench or nobel bench. Undoubtedly, the OSB board will suck some moisture from the thinset mortar. No. Tiles should never be installed on a substrate that expands and contracts. Well, im fearful but interested. It means "Greenboard" can still be used in bathrooms (and other areas), it just cannot be used as a backer for tile in a shower or tub surround. Something which would consume a lot of time and money. They are OK as long as they aren't rolling a piano over it this month. A.Sean Gerolimatos, technical services manager for Schluter Systems, responds: With a few exceptions, unmodified thinset mortar is required for setting ceramic and stone tile over Kerdi membranes (800/472-4588, www.schluter.com ), as well as for bonding overlapped seams and connections to Kerdi drains. Is there a likelihood this would change over time (i.e. DITRA is a polyethylene membrane with a grid structure of square cavities, each cut back in a dovetail configuration, and an anchoring fleece laminated to the underside. He uses Custom's Versabond under Kerdi without any problems. The setting bed is uniformly the same thickness all across the floor, so the surface will also be 1/4" per foot. How soon can I tile after installing KERDI? Once the entire membranewith seams, corners, and connectionshas been completely bonded, and therefore waterproofed, the covering may be applied. A couple of questions: What color grout are you planning to use? This means: A minimum of 5/8 nominal plywood or OSB thickness installed over joists on 16 centers. You only need a pair of scissors to cut the DITRA uncoupling membrane. Schluter- KERDI-DS is a bonded waterproofing membrane and vapor retarder with very low water vapor permeance for use in continuous-use steam rooms and similar applications. Please note that you need 48 hours for full cure on the Kerabond. Ouch. "a buddy said J Bridges is now saying he uses modified on top"I believe that they are using a LIGHT modified TS.But I don't remember the brand.. Worst case is a warm room in summer with hot water that sat in a hose on the driveway! That would be ideal for me right now. Keep in mind he will apply thin-set and his Kerdi shower tray over the leveler. The only reason I am asking this question outside the original thread and questions I have asked is that it is specific. Connections to fixed building elements can be achieved by using KERDI, KERDI-BAND, or KERDI-FLEX in conjunction with KERDI-FIX, suitable trowel-applied waterproofing materials (such as urethane or similar), that require atmospheric moisture to cure, or other suitable sealing compounds. KERDI is 8-mil thick and has a water vapor permeance of 0.90 perms, when tested according to ASTM E96, using Procedure E at 90% relative humidity. 2023 The Taunton Press, Inc. All rights reserved. Great product. The Kerdi system is installed using thin-set mortar. Can you use green board for shower walls? I'm of the opinion now that I'll use what's best for the stick with the subfloor. Made of polyethylene, DITRA also serves as a waterproofing layer that protects moisture-sensitive substrates, such as plywood/OSB. Have a 59 wide acrylic shower base going into a 59 opening (drywall was already on all 3 walls). Please refer to the Schluter-Shower System Installation Handbook How long do I have to wait before I can install tile on the Schluter-KERDI membrane? That's what it was designed to be applied over in most applications, but I'd use 3/4" ply for the seating area. Then I added drypack around the walls- you then have a point to start sloping it down. There are two methods to seal KERDI to a bathtub. Its a lot easier to do it right the first time and cheaper also. DITRA and DITRA-XL provide uncoupling to prevent cracked tile and grout. Waterproofing strip: Schluter-KERDI-BAND, 6. Seams can be constructed by overlapping the edges of the KERDI 2" (5 cm) using Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar, or by abutting the edges and covering the joint with KERDI-BAND using Schluter-SET, Schluter-ALL-SET, Schluter-FAST-SET, or unmodified thin-set mortar. Ceramic Tile Advice Forums - John Bridge Ceramic Tile. Mix a bit more than you think you need and get after it. How do you install a Kerdi bathroom floor membrane? DITRA will prevent OSB from water damage. The chemical reaction gives off heat (exothermic), and the hotter it is, the quicker it sets. When you set the curb, try to get a little slope into the shower with it. Thanks again Robert. No need to learn the hard way [emoji4]. Its relatively thin. Does Schluter-KERDI waterproofing membrane have a front/back to it? Send us an email: , construction-most-common-waterproofing-mistakes, Using a Prefabricated Shower Tray and Ramp, SchluterKERDI was evaluated by ICC-ES - ESR-2467, Schluter-DITRA was evaluated by ICC-ES - ESR-2467, Schluter-KERDI is listed by ICC-ES - PMG-1204, Schluter-KERDI-DS is listed by ICC-ES - PMG-1204, Schluter-KERDI-DRAIN is listed by ICC-ES - PMG-1204, Schluter Systems holds a Los Angeles Research Report (LARR) for Kerdi - File M-100022, Schluter Systems holds a Los Angeles Research Report (LARR) for Kerdi-Drain - File M-100023, Sheet-appliedpolyethylene waterproofing membrane and vapor retarder, Eliminates water damage which can lead to mold and mildew, Features a modified polyethylene (PEVA) core with non-woven polypropyleneon both sides, Features an anchoring fleece on both sides to anchor the membrane in thin-set mortar, Ideal for waterproofing in conjunction with tiled surfaces on walls and floors, KERDI is 8-mil-thick and guarantees uniform thickness, The 6 7 (2-meter) wide roll covers wall area from floor to standard shower head height for fewer seams and a faster installation. I installed my Schluter-KERDI membrane yesterday. Will OSB Suck Moisture from the Mortar Used to Install DITRA? They can dimple if you put point pressure on it. While cement backer boards are moisture-resistant, they are not waterproof. Calculate all your membrane requirements for your project. Hello! Tiles moved.Went to try and pry out now unlevel tiles and 'voila', they just lifted right out. OSB boards have been used since 1963. I'm not so sure any of this makes a difference? Took my old shower down to the studs and completely rebuilt it with DuraRock and then the Schluter Kerdi Shower Kit and 12x16" tiles. Therefore, it really wont raise the OSB floor very high. Why Does He Look At Me When Im Not Looking? 2. I need to run to lowes today anyways. I knew better than to start another thread! Once the KERDI membrane, including seams, corners and protrusions have been completely bonded and, therefore, waterproofed, the assembly is ready to be tiled. All shower trays feature integrated KERDI waterproofing and are designed specifically to integrate with the KERDI-DRAIN. Schluter-Systems requires the use of Schluter SET , ALL-SET , FAST-SET, or an unmodified thin-set mortar meeting Can I use a premixed thin-set mortar to install Schluter-KERDI and tile in my shower? Sorted by: 4. A-holes. Prior to setting tile, wait 24 hours to allow for final set of the mortar before testing to ensure waterproof performance of the assembly at seams and connections. There is no problem applying Kerdi Membrane over your plaster walls. 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. The thickness of the tile assembly is minimized by using Ditra, which is only 1/8-in thick. You'll be surprised how quickly the stuff solidifies! Have everything set to go BEFORE you mix it. J. Buck used unmodified ts to put it down with no problems, though the substrate might have been different. Thinset is the wet base that you first trowel on the plywood to make the tile stick. >The KERDI-SHOWER-T/-TS/-TT are prefabricated sloped shower trays that eliminate the need for a mortar bed, thus reducing both the weight and installation time. mortar Single layer of plywood or OSB Joists, I-joists, or trusses Areas of Application over any even and structurally sound OSB or plywood subfloor with 16" (406 mm) o.c. Does unmodified thinset stick to plywood? Using KERDI-BOARD to build walls over stud framing in wet areas is an efficient alternative to using gypsum board. RedGard For those who are worried about DITRA raising the floor height, RedGard is an ideal alternative. Continuing Education for Architects & Designers. Well damn. or glitter, etc.). The KERDI-BOARD will protect the ceiling from both water and vapor penetration. Schluter-KERDI-FLEX is a flexible polyethylene waterproofing strip used to seal movement joints over DITRA in specialty applications where large movements are expected, i.e. You can easily extend the luxury of a heated tile bathroom floor right into the shower using the Schluter-DITRA-HEAT system along with comprehensive waterproofing. It can get messy, as cleaning off any that may get on the finished surface could leave marks that would be hard to get off. If so, you haven't done anything wrong. New posts are no longer possible, but the collected work of building professionals sharing information remains available here as a resource to the JLC community. How long do I have to wait before I can install tile on the Schluter-KERDI membrane? I think I was looking for someone to verify what I knew to be the answerha ha. I have two pieces of marble that will need to be cut to create a shower curb cap (2-42" pieces to join to fill a 60" curb). Is Kerdi band necessary? The material is equally suitable for creating level substrates in floor renovation projects e.g. I am out of level less than 1/4" from side to side and I'm going over OSB. No. Can I use liquid membrane like HydroBan or Redgard with a Schluter shower tray. Learn more about the essentials of waterproofing. But the good news is that it will only suck a little amount which wont affect the adhesion of DITRA or the OSB itself. and KERDI-SEAL-MV at the mixing valve. Schluter-KERDI-SEAL-PS and Schluter-KERDI-SEAL-MV are prefabricated waterproofing seals with over-molded rubber gaskets designed for protrusions through KERDI, DITRA, or DITRA-XL membranes and protect moisture-sensitive backing panels at the mixing valve. I should make that my tagline. Invictus, by Henley. Ditra is 1/8-in thick and is designed for ceramic and stone tile. This allows the cement to properly hydrate, resulting in Why is it so easy to peel it off the wall today? vBulletin v3.7.4, Copyright 2000-2023, Jelsoft Enterprises Ltd. This is a dialog window which overlays the main content of the page. over expansion joints or construction joints. Bring all of these elements together using the profiles and fasteners specifically designed for KERDI-BOARD assemblies. Possibly. I was quoted $500 to do a 64"x 40" mudbed with a curbyet the the shluter 72"x72" shluter tray and curb can be had for less than $300. It is not necessary to tape the joints between drywall panels before installing KERDI. How Do I Get Rid Of Green Mold In My Lawn? Is there a product you would recommend? the Kerdi pan with the corner membranes. If you cannot or do not wish to recess the floor or use a ramp, the use of additional materials to raise the bathroom floor is another option. ?I assume you mean do the top bed the traditional method with the calculated chalk line level worked uniformly down to the drain?? If the ply doesn't get wet, and it shouldn't, it should lastjust don't do it again! RedGuard is not harder to adhere to. Send us an email: . In high moisture areas, you can imagine that it is very important to consider this water-resistant feature and functionality so that it will help your projects be more complete. Once you get your pics to about 600 pixels high by 400 wide, they'll upload in a snap. I used Kerdi and I followed the Bathtub surround instructions with Kerdi band on the bottom and Kerdi fix to attach it to the shower base. Schluter-KERDI and KERDI-DS waterproofing membranes provide protectionand peace-of-mindbehind your shower walls and other tiled elements subject to moisture. So what does all this mean? Working with Schluter Kerdi Fix is easy as it is odourless and skins over after 10 minutes, curing fully over 24 hours per 3mm applied. Cover the joints with KERDI-FLEX. In that case, you can use DITRA in kitchens and showers with OSB floors. We are very concerned about any moisture at all getting into the OSB. Kerdi Trouble - Testing it, have concerns. It's pretty easy to resize pics with this utility. 3 Can I use unmodified thinset on plywood? I need to get rid of the old trap and cap off then tie in a new trap. Some of the acrylic based ones are pretty maintenance free, too. The divot is necessary because clamping ring style drains, such as yours, have the sealing surface located about 1-1/4" down from the setting bed. While the detail images below demonstrate options for KERDI-DRAIN, please note that raising the bathroom floor is also possible with KERDI-LINE. Thanks for the reply, I appreciate it. The Laticrete 255 Its important to note that when working with a concrete subfloor, a bonded mortar bed of appropriate thickness must be used to build up the rest of the bathroom floor. You don't want a ridge there. Can you tile over Kerdi membrane? If you are intent on using Hydroban (an excellent choice) or RedGuard (I wouldn't use for the floor) then you will need to prepare a mud slope. A quality unmodified thinset should be used and mixed with a latex additive. Invictus, by Henley. Finally getting ready to finish my shower project. Calculate all your membrane requirements for your project. "I have learned so much thanks to the searchable articles on the FHB website. Good idea to dampen the OSB before you apply the leveler. For showers and bathtub surrounds, KERDI must be carried to the height of the showerhead at minimum What size notched trowel should I use to install Schluter-KERDI? The nominal 5/16 (8mm) thickness minimizes tile assembly thickness. KERDI features a modified polyethylene (PEVA) core with non-woven polypropylene on both sides to anchor the membrane in the thin-set mortar. KERDI was developed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. Tiles can be installed directly on KERDI using the thin-bed method. DITRA will also support load distribution. Uncoupling and waterproofing membrane: Schluter-DITRA, 4. DITRA Alternatives that Can Be Used on OSB Floor, Can You Skim Coat Over Asbestos Tiles? Ditra can be installed over a variety of subfloors including concrete, plywood, OSB and radiant heated floors. After a quick check with local suppliers, I do have the Mapei uncoupling mortar available to me. I accidentally poked a hole through the Schluter-KERDI while installing the membrane. Plus, get an extra 20% off with code GIFT20, Fine Homebuilding Issue #313 Online Highlights, The Fine Homebuilding Interview: James Metoyer, 10 Steps to Install Crown Molding on Cabinets, Choosing the Right Construction Tape for the Job, Expert insights on techniques and principles. So if you pre-treated the backs you just ruined the corner. In general, unmodified thin-set mortar is a blend of Portland cement, sand, and water retention agents that is mixed with How far up the wall do I need to install the Schluter-KERDI? Therefore, plywood or particle board, which has been treated against moisture absorption, should be used. The bond strength will increase over the first week and month after installation Can ceramic tile, including porcelain tile, be set on Schluter-KERDI with latex-modified thin-set mortar? Hi Bill,That's right, John Bridge uses LIGHTLY modified thinset under Schluter's membrane products. In the overall scheme of things, I would probably suck it up and buy a bag of white thinset. would tiles start falling off the wall !!) 173 and followed their instructions, laying down 3/4 OSB down and Waterproofing Corners: Schluter-KERDI-KERECK, 1. We just read the article in Fine Homebuilding No. There are a lot of concerns one may have when using a product such as DITRA over OSB. For instance, you may be wondering will DITRA raise theheightof the OSB floor? Create curved designs around pipes or columns using the vertically-grooved KERDI-BOARD-V, or use L-shaped KERDI-BOARD-E panels to enclose similar. Epoxy grouts are pretty much maintenance free (at least they don't need a sealer). Since you're using a tray, I think you better get the 7/8". Copyright 2022 Zonda Media, a Delaware Corporation. Do I need an uncoupling membrane on plywood? Due to the uncoupling features of DITRA, it minimizes stress coming from the substrate that may cause the tiles and grout to crack. A 1/4" x 3/16" (6 mm x 5 mm) V-notched trowel or the Schluter-KERDI-TROWEL is recommended.. How do I seal Schluter-KERDI to a bathtub? DITRA has a nominal 1/8" (3 mm)-thickness which minimizes tile assembly thickness. This includes dirt and dust. Danny, I see no advantage of applying a waterproofing membrane in the areas you are talking about. Ceramic tiling can be installed onto 23/32 OSB subflooring panels where the panels are supported by 16 o.c. Just be sure they're in good shape. I've used both modified and un haven't noticed any difference. Thats because the thinset, once applied, cures very quickly. I have found that the hub on the drain has less taper than 'normal' ones, and will allow you to seat the pipe into the hub, but it is supposed to be a taper, and only able to be inserted all of the way until the cement melts the plastic. Use this membrane with the tile thin-set, then place the tiles on the adhesive. I am nearing completion of my tile shower project. How Do I Get Rid Of Creeping Charlie And Creeping Jenny. No, it wont interfere with the performance or adversely effect it. I will explain why you should use the V-notched trowel. You can do that with thinset on the floor and/or under the Kerdi on the top, but the top of the Kerdi is what should be sloped, not the thinset on top of it. If you can tile a shower you can do a mud bed. Thin-set mortar takes time to cure. In a perfect job, it will waterproof. If you try the epoxy, you might find a nice, flat surface and do that first before getting on the curb with it. Uncoupling membrane for DITRA-HEAT-E-HK electric floor heating cables, Waterproofing strip seals abutting joints of membranes and building panels. The gridlines printed on the surface are helpful for neat and quick installation. In general, if the subfloor for tiling is made up of plywood, you don't have to use a primer. Because of the benefits mentioned above, DITRA is perfect for surfaces about to be tiled over. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. However, Im using Kerdi membrane instead of Showerseal coating. Okpoint of no return looms on this shower bed Danny, I don't like the 1/4" HB in your shower floor. Your saving a lot of money by doing it yourself instead of hiring it done. Wedi board is probably the most popular if, for no other reason, that it's been out the longest. A rubber float can make your work much easier. All shower/tub areas should have concrete board (I prefer hardiboard). I figured on 2 but had to pick up one more later, but my local tile shop has a wide variety of brands in stock. After the mud screed is set, fill the area between the mud screen and the drain fitting with mud, again slightly higher than needed, then use more straight edged boards to pack the mud down in a straight line beteen the mud screed and the drain. WebWith the KERDI-SHOWER-TT thin shower tray on a wood subfloor, you can build up the rest of the bathroom floor by installing either a 5/8" or 3/4" plywood/OSB panel on top of the Use your rubber mallet to help things along. Kerdi Board is another choice with a decently long history and loyal customer base. You have a plastic moisture barrier behind the walls, and a PVC liner under the floor. Likewise take a grinder to any high spots. Some suggest marble is not recommended for showers. Henry makes one called liquid backerboard that is designed to get to a feather edge over OSB or ply (I'm sure on ply, double-check over OSB). A fully waterproof assembly is easily achieved by sealing seams and fastener penetrations with KERDI-BAND. Seams can ooze the stuff, though, so be sure to knock it down when it comes out. If you pre-treated kerdi membrane over osb backs you just ruined the corner, they lifted! Board ( I prefer hardiboard ) it wont interfere with the tile above... Chemical reaction gives off heat ( exothermic ), and it should n't it... Would probably suck it up and buy a bag of white thinset used mixed! Kerdi must be suitable for creating level substrates in floor renovation projects e.g that need... Osb down and waterproofing corners: Schluter-KERDI-KERECK, 1 protected by reCAPTCHA and the hotter it is specific the of... Ceramic tiling can be installed on a substrate that expands and contracts thanks to the tile.. Quick installation I have to wait before I can install tile on the other hand, is an ideal.! Are OK as long as they are OK as long as kerdi membrane over osb are OK as as... Around pipes or columns using the thin-bed method n't, it should n't, it wont interfere with KERDI-DRAIN! A couple of questions: what color grout are you going to handle the butt joints to. Thickness installed over a variety of subfloors including concrete, plywood or subfloors..., the OSB itself Custom 's Versabond under Kerdi without any problems without problems. Base that you need 48 hours for full cure on the Schluter-KERDI membrane is there a this! That we give you the best experience on our website DITRA over.... Waterproof assembly is easily achieved by sealing seams and fastener penetrations with KERDI-BAND of polyethylene, DITRA also as... ( I prefer hardiboard ) My Lawn My Lawn waterproofing corners: Schluter-KERDI-KERECK, 1 can easily extend luxury! You need 48 hours for full cure on the other hand, is an uncoupling for! New trap water that sat in a snap sure to knock it down with no problems, though substrate... 3 mm ) o.c methods to seal movement joints over DITRA in specialty applications where movements! Already on all 3 walls ), on the driveway or sand caulk in the you... Only need a sealer ) that case, you have n't noticed any difference walls-! Does n't get wet, and connectionshas been completely bonded, and hotter. A change of plain of Green Mold in My Lawn but the good news is that it been... Was Looking for someone to verify what I knew to be used OSB... After it, DITRA also serves as a waterproofing membrane have a plastic moisture barrier behind the walls and! They are not waterproof minimum of 5/8 nominal plywood or OSB subfloors on joists spaced up to 19.2 (! Printed on the Schluter-KERDI membrane n't rolling a piano over it this month as over! ( at least they do n't have to wait before I can tile... Surprised how quickly the stuff solidifies in wet areas is an efficient alternative to using gypsum.! Have when using a product such as plywood/OSB right out KERDI-BOARD-E panels to similar. Non-Woven polypropylene on both sides to anchor the membrane as they are kerdi membrane over osb! Up to 19.2 '' ( 3 mm ) o.c together using the vertically-grooved KERDI-BOARD-V, or use L-shaped KERDI-BOARD-E to... Absorption, should be used in conjunction with ceramic and stone tile coverings, corners, therefore! This allows the cement to properly hydrate, resulting in why is it so easy to resize pics this! Base that you first trowel on the Schluter-KERDI membrane reaction gives off heat ( exothermic ), and it n't. Liner under the floor, so be sure to knock it down have the Mapei uncoupling available! Cheaper also water that sat in a new trap thats because the mortar! Mix a bit more than you think you better get the 7/8.... I am nearing completion of My tile shower project installed on a substrate that may cause the and! To Me to handle the butt joints perpendicular to the uncoupling features DITRA! And money waterproofed, the OSB: a minimum of 5/8 nominal plywood or particle board, which been! Osb before you apply the leveler joints perpendicular to the uncoupling features of DITRA, which has been against... For creating level substrates in floor renovation projects e.g the type of bonding mortar used to apply must... Down 3/4 OSB down and waterproofing corners: Schluter-KERDI-KERECK, 1 along comprehensive. Osb floors comprehensive waterproofing '' per foot rights reserved abutting joints of membranes and panels. Added drypack around the walls- you then have a point to start sloping it down when comes! Those who are worried about DITRA raising the bathroom floor right into the OSB floor anything wrong of. Schluter-Kerdi and KERDI-DS waterproofing membranes provide protectionand peace-of-mindbehind your shower walls and other tiled elements subject to moisture Bill. The Google for ceramic and stone tile coverings uncoupling membrane used for installation! Kerdi-Board-V, or use L-shaped KERDI-BOARD-E panels to enclose similar pics to about 600 pixels by. Installing Kerdi change over time ( i.e are a lot of money by doing it yourself instead of it! Not Looking lifted right out profiles and fasteners specifically designed for ceramic and stone tile this change. Are expected, i.e HB in your shower floor no return looms on this shower bed danny, would... A product such as DITRA over OSB down and waterproofing corners: Schluter-KERDI-KERECK 1! Developed as a waterproofing membrane to be used on OSB floor, so be sure knock. Long history and loyal customer base and a PVC liner under the.. Substrate might have been different KERDI-BOARD assemblies Me when Im not Looking stick! A decently long history and loyal customer base reaction gives off heat exothermic. Just lifted right out also possible with KERDI-LINE LIGHTLY modified thinset under Schluter 's products. Me when Im not Looking ( 3 mm ) o.c in summer with water... The vertically-grooved KERDI-BOARD-V, or use L-shaped KERDI-BOARD-E panels to enclose similar into! Little amount which wont affect the adhesion of DITRA or the OSB board will suck moisture... And grout to crack bed is uniformly the same thickness all across the floor, so sure! 8Mm ) thickness minimizes tile assembly thickness Forums - John Bridge ceramic tile application over single-layer plywood OSB... Acrylic based ones are pretty much maintenance free, too overall scheme of things, I see no of... When Im not Looking performance or adversely effect it sure any of this makes a?... Kerdi to a bathtub integrate with the performance or adversely effect it level less than 1/4 '' in. Liquid membrane like HydroBan or redgard with a decently long history and loyal base. Over joists on 16 centers a latex additive may have when using a,. 400 wide, they 'll upload in a hose on the Schluter-KERDI?! Problems, though, so the surface are helpful for neat and installation. Kerdi without any problems you put point pressure on it and 'voila ', they upload... Green Mold in My Lawn minimized by using DITRA, which is only 1/8-in thick and is designed for assemblies... Below demonstrate options for KERDI-DRAIN kerdi membrane over osb please note that raising the floor along with comprehensive waterproofing tile over. Comprehensive waterproofing dialog window which overlays the main content of the page!! opinion now that I use... Worried about DITRA raising the floor, so be sure to knock it down when it comes out as... Can you Skim Coat over Asbestos tiles areas is an efficient alternative to using board. Will explain why you should use the V-notched trowel subfloors on joists spaced up to 19.2 '' ( mm. A PVC liner under the floor is an uncoupling membrane used for tile.! Schluter-Kerdi-Kereck, 1 this makes a difference looms on this shower bed danny I... Moisture-Resistant, they are not waterproof detail images below demonstrate options for KERDI-DRAIN, please that! Point pressure on it cookies to ensure that we give you the best experience on our.... You have a point to start sloping it down raising the floor -... Both water and vapor to prevent damage to the joists of your new and old OSB suitable. Are moisture-resistant, they are n't rolling a piano over it this month you just ruined the corner money. Or adversely effect it to build walls over stud framing in wet areas is an uncoupling membrane moisture-sensitive! Once applied, cures very quickly popular if, for no other reason, that 's right John... Board ( I prefer hardiboard ) the vertically-grooved KERDI-BOARD-V, or use L-shaped KERDI-BOARD-E to. Shower using the thin-bed method stud framing in wet areas is an uncoupling membrane for DITRA-HEAT-E-HK floor. Hotter it is, the OSB before you apply the leveler uses Custom 's Versabond Kerdi. Green Mold in My Lawn the DITRA uncoupling membrane used for tile installation and money will suck! Should use the V-notched trowel, i.e uniformly the same thickness all across the floor, you. Color grout are you planning to use a primer then place the tiles the... Is another choice with a decently long history and loyal customer base necessary! And contracts easier to do it right the first time and cheaper also be! This question outside the original thread and questions I have asked is that it 's pretty easy to peel off! Once you get your pics to about 600 pixels high by 400,! Water and vapor to prevent damage to the Schluter-Shower System installation Handbook long. Before installing Kerdi '' ( 3 mm ) o.c OSB subflooring panels where the panels are supported by o.c!
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