Do I need to do anything with the vapor barrier that is being used for the outside of the house? Am I supposed to apply silicone to that space or just caulk? Again, the FDA considers normal use of undamaged silicone cookware and other items to be safe. That would eliminate the need to remove the existing mess. Just install the new mud deck and tile away. This way eliminates it. What do you think about Kirdifix? They just flat out don't leak. I don't recall any metion of sillycone or KerdiFix. It is a Mildew resistant 30 minutes shower ready caulk. The next step is to embed KERDI-BAND into the KERDI-Fix to make the tub to KERDI-BOARD transition 100% waterproof. For those areas thin set or Kerdi-fix are recommended. We are using tile for walls and mosaic for shower floor and I want to know if any additional waterproofing materials other than backer board need to be applied before or after the backer board and was told not to put any holes in fiberglass coating so is there is need to do that that at all for any reason? If you use 100% silicone it peforms very well but I have used urethane nostly. Thanks. One of the problems with waterproofing a shower is the fact that you NEED to have holes in it. Do I just paint the redguard right up to the holes? It will just back up and eventually (over the years) saturate the substrate! If so, how far? If it’s 100% silicone there isn’t (for all intents and purposes) any difference at all. At the time they didn't have KerdiFix out. No considerable moisture is going to get to that area anyway. I am in the middle of shower remodel. You can silicone between the tile and backer around the hole, but there’s no need to tear tile out to do it. If the instructions for the product say to use 100% silicone then that is the way to proceed. Embed the KERDI in the KERDI-FIX and work the membrane onto the substrate to ensure full coverage and remove air pockets. I do not have a picture of that. In a nutshell, caulk is used in a tub or shower enclosure to keep water from creeping up,under or around the tiles at joints between tile and the tub or shower pan,or on joints where walls meet. The valve manufacturer supplied the typical plastic placeholder/spacer that temporarily attaches to the valve and protrudes through the substrate. The 100 percent silicone material holds up under heat, vibration, shock, temperature changes, and moisture. All the cool kids are doin’ it. This multi-purpose leak sealer waterproofs and protects gutters, skylights, flashing, roofs, RVs, campers, windowsills, foundations, boats, cars, concrete, glass, metal, and more. 100% WEATHERPROOF: This 100% silicone formula offers protection from water damage, providing a reliable seal in areas prone to weather and water exposure 7-YEAR MOLD-FREE PRODUCT PROTECTION: Protects against stain-causing mold and mildew growth You can click on any of these photos to view a full-size version. That thing doesnt stick. This ensures the fleece will be 100% covered in thin-set. once made a cardboard box waterproof with the kerdi. Just grab a tube of silicone and stop overthinking it! Similar question for what to do about the plastic that goes down to floor under the “tub legs”. To seal a PVC pipe with silicon you must first obtain one or more tubes of silicone, then prepare the PVC pipe. The material does not yellow over time and has high resistance to oxygen, ozone and UV light. The alcohol evaporates quickly and thatâs one advantage of using denatured alcohol to spray the silicone vs something like soapy water or Windex, which both work for this also. Notify me of follow-up comments by email. They are polymeric materials that exhibit the viscoelastic behaviour, which we generally call as elasticity. Hedgehogs like apples. I’ve never tiled over existing tile. There are only 2 places I worry about with Kerdi and sheetrock. But yes, it will work for your situation as well. If so, what do you do with the plastic moisture barrier? However, when it was the plumber’s turn, we realized that this meant that the mixing valve for the tub/shower was too deep, and it now sits proud of the shower wall. You can also get a ‘drain extender’, which raises the drain, then pack another mud deck over the existing tile, correctly sloped, and tile it. Dave, so a urethane such as Sikafkex will skin over like a caulk and not collect dirt etc?????? Water is for sissies. As an example, the popular silicone sold in hardware stores is GE012A (aka GE 1) which contains Octamethylcyclotetrasiloxane (aka D4). Whether you have utilized a topical waterproofing like Hydroban or Redgard (liquid) or Kerdi (sheet), or you’re using the traditional method with a membrane behind your substrate, the answer is silicone. I live in michigan where the winters are cold if that helps with the answer. :)From memory Peter ( Schluter's Technical Director? ) And the dam would still function for all the other water running down the face behind the tile. Have a few others that did not last near as long. Those are; the tub / kerdi connection, here I typically sillycone this in after kerdi is up, and the inside / outside 3 plane joints. Should I silicone the opening you mentioned on the cement board section? Red Devil 8164012 100% Silicone Sealant Architectural Grade, Bronze, 9.8 oz, Case of 12 By Red Devil product price $47.97 & FREE Shipping. When you comb thinset onto the substrate you want to scrape away the area around where the hole in the tile is. There's is an epoxy offered by a competitor that works OK. Once of our clients gave the Yep, I was present when that box was constructed. You don’t need to do anything over it, the deck mud won’t bond to it anyway (which actually helps). I used durock ultra light foam board, so hopefully it doesn’t absorb any of the little bit of moisture that gets behind the tile anyway. If it’s at the base of the wall water will get to it. I need to leave this clean out accessible, but how do I keep water from running down the shower wall tile and infiltrating this clean out door. 2) I’m using Kerdi over Hardi. 1) Is the thinset applied up to the opening in the substrate and then scraped away (like a 3/4″ gap)? If so, will the silicone bond? We are putting in a Wedi system shower and have already done the tiling, using a flexbond-type thinset and Bostick urethane grout. ;). Keep silicone patches on your skin from 1-8 hours. The product is really only part of it, the application is just as important. This creates the same waterproof dam on the backside of your substrate as well. Great site my man. Thanks in advance. While it may cling to the side of the escutcheon and be channeled sideways for a bit, as soon as it hits any type of barrier it will begin to run down again. Thanks for your time. :shrug: It would depend. :topicoff: but since I finally found you Dave, if you were to caulk/seal an exposed joint ie:tub meets tile, corner... in a tub surround or shower, what exactly would you use, silicone or what exactly??????????? Regarding a shower with Hardi substrate and Kerdi waterproofing—– It's been full of water since 2001? I used it in a few spots on my shower floor with kerdi membrane, and flood tested it for 4 days straight with no leaks. Leaky caulk is not to be ignored! Hey Roger, just bought your kerdi bundle and read the kerdi book top to bottom. The only big downside is that it's not paintable. No. They, and others are relying on a tested, proven 2" overlap seam. Because I’m a slacker. Adding a second drain and tying it into the existing membrane would require at least partially removing floor tile, doing all that, then replacing deck mud and floor tile. I know what you mean about the bulge. It's a regular old brown corregated cardboard box about 12x14 -- 8 inches high, maybe. So 15 minutes isnât a hard and fast rule. I can't imagine that it would be toolable and it would likely just be a â¦ You need to use 100% silicone, none of that acrylic silicone or any of that stuff that sounds fancy (but doesn’t work long-term). I’ll have to get you a six pack for this probably…two beers isn’t enough. The temperature needs to be between 40°F and 100°F, and there needs to be between 5% and 95% humidity for silicone â¦ We chose to do this method but you can also buy special Schluter tub spout covers. My son told me all the cool kids are doin’ it! The silicone dam is for the purposes of blocking water running down the wall behind the tile from getting into that opening. —doesn’t bond to thinset (wet or dry), right? It’s great! I am still a little confused about how to waterproof around the holes. It never hurts, though. (Please DO NOT email me with the punchline to that joke!). I understand how to seal the pipes and mixing valves, but what about the ‘other’ valve openings (I’m using a hansgrohe thermostatic valve, and have three other valve openings for the shower head, hand shower, and rain shower). ), Waterproofing fixture cutouts in shower tile. IMHO the Kerdi fix at every seam IS overkill. Re: Are silicone mats really esd safe? Plumber advised me to have my tile guy build it up with mud. Hi, First of all, great name. Ever have one tank that nothing survives in? :). (Picture 1). It comes with its own seal, but it’s not kerdi, obviously. Mike - Thanks for the response. Brilliant! The shower was never built quite right. 21 CFR 177.2600. I just don’t want to create a mold sandwich. The problem with holes in a waterproof shower is that they make it not so waterproof. When cured and washed, the product meets the requirements of FDA Regulation No. You need to use 100% silicone, none of that acrylic silicone or any of that stuff that sounds fancy (but doesnât work long-term). The simple truth is that some projects just don't need extremely strong adhesives, and diluting the silicone is a good way to make your sealant cheaper for these kinds of projects. They don’t have to be very long, just enough for any vapor to dissipate. I guess my concern is sealing up the kerdi membrane properly around the valve opening through the substrate. Do I not worry about caulking that space until after all the thinsetting, taping and redguarding? Get off my ass about it. I know I can use silicone around the opening behind the tile so water behind the tile can wick around it, but how do I prevent water from getting behind the substrate? The plaster guard is removed before the trim pieces are put on. I have a question that will probably prompt some eye-rolling, and I get that it’s a stupid situation to be in. 2. I can still put a silicone dam around the Hardi hole (on top of the Kerdi) as shown in this article, but the silicone dam would be slightly larger in diameter than the escutcheon seals (by up to 3/8″ on radius). Do those faucet and shower head holes get thinset or tape? I always use backer rod if I want a sealant to stay put. and runs down the wall, it will run around the bead of silicone and continue down the wall into the tub or shower base and into the drain. We are putting tile over a tub. My plumber and tile guy say not to worry—they’ll just make the tile hole smaller than the Hardi hole, so the escutcheon will seal against the tile. I've used a lot of Kerdi fix for its intended purpose of sealing membranes and fixtures, and have never tried to caulk a tub surround with it. We can distinguish silicone from rubbers by the atomic structure. I believe Gorilla 100 Percent Silicone Sealant would be a great option for you to try. . If I place the kerdi membrane up to that, and then it is removed when the trim is added, what prevents moisture from getting through that hole? Dave has been watering it ever since. Only thing mentioned ever is silicone, I'm wondering about using polyurethane such as Sikaflex or another. The repair can be time-consuming and expensive. Stuff seals well. Is that common practice? Thanks for your help. 4) I have bought larger OD escutcheons where available, but some not available. No thinset and tape between the backer and tub. Really. I haveoften seen tiled bathrooms where the two or threebottom rows of tiles were loosened by water which crept up under the tiles fromthe bottom! So………….. 1) Is this too insignificant to worry about? Once you get your escutcheon (the metal cover plate) on there no water will enter through the front of the tile, then any water behind your tile will run around the dam. JB even water tested one within city limits to fulfill a building code check list. Dunno Steve, I have used silicone and i know it sticks to it. Never tried that one, used Vulcum, Bostic, Dow, Precora, and Sonoborne. (That’s the word on the street…), Help with all your tile needs (and extreme jackassery! I know it will make the tub deck 1/4″ shallower on that side, but is there any reason that would not work (or not to do it that way) if I am backed into that particular corner? In addition, silicones have more special properties than normal rubbers. It seems to me that it's a better product/chemical. Have a beer Pepsi to congratulate yourself for such a fine looking circle! That stuff is indestructible! 100% silicone . Now once you get your hole cut out in your tile flip it over so you’re staring at the back of it. It is an exterior wall, and I plan on using a liquid topical membrane like redguard for my walls. I don’t know if this is the best place to ask this, but it is shower and drain related…a problem. Schluter does allow the use of 100 % silcone with Kerdi for closing pipe holes, etc. And youmight not be able to use the enclosure again for a wâ¦ I'm not a chemist and I don't know if it'll react badly with Kerdi :shrug: All thoughts are welcome. It’ll be fun. Still see joints I did in public buildings that are 20-25 years old and not replaced. Using the flat side of the trowel, firmly press the banding into the mortar to ensure 100% coverage and to remove excess mortar and air pockets. I don’t know why they would want you to leave it in there unless it’s part of the seal for their trim. So how do you waterproof a hole? I have plenty of room under the floor to access the drain and pipes there….what I’m curious about is an idea of simply adding a second drain into the floor. You have no idea the headache you just solved. If you get enough silicone on there you’ll be able to run your finger along the perimeter of the cutout after you install your tile to smooth the silicone. Ok ok ok Kerdi fix it is, doing this ( with a popsicle stick ) I feel totally secure about using Kerdi on sheetrock wet wall. Is this sealant food grade? The lowest portion of the floor is about 6″ further in than the drain, so in order for all the water to be out of the shower at the end of the day, one has to squeegee it toward the drain. It was suggested to me to do a custom fiberglass pan. Seams or gaps that exist where you have PVC piping for drains or vents must be sealed. Once everything is on water isn’t going to get through it. And I’ve done a lot of moens. Click here to get an instruction manual for your waterproofing installation. What should I do? Yes, you can. While I normally always advocate to follow manufacturers recommendations I have always removed plaster guards from every valve I’ve done a shower in. Professional Tile Installation Contractor Fort Collins and all of Northern Colorado. I have one question though which I’m unclear about. I assume thinset and screws to fasten? For those areas thin set or Kerdi-fix are recommended. (Picture 3). The Kerdi bonded very well at the top where the cement board was primed and prevented it from sucking the moisture from the thinset. Silicone caulk is expensive but worth the cost due to its flexibility and long life. You can bond the rubber seal to the kerdi with kerdi-fix. It’s about 1.5″ in diameter. Your blog has been THE most helpful thing on the internet for my remodel. For best results, sleep with your silicone pad adhered to your skin. Use included rubber seal…how to attach to the kerdi? A lot of people ask me which silicone is best. I’m doing a kerdi sheet membrane shower, and plan on using a Hansgrohe mixing valve. No considerable moisture gets down there either, any damage normally derives from water wicking into the drywall when backerboard is not present. Most formulas are mildew-resistant and have inhibitors to slow discoloration (but all caulk gets ugly over time). BUY NOW Rule #4. Silicone on the “plaster guard”…..enough? Both rubber and silicone are elastomers. Again, thank you so much. You can also use KERDI-FIX to waterproof where the tub spout comes through the KERDI-BOARD. Pure silicone will have stronger adhesion, less shrinkage lower temperature application, and stronger resistance â¦ Something more or less obvious? The only two things I can think of offhand. That has nothing to do with waterproofing, you need to tape and mud them to maintain a single solid surface that does not expand and contract independently. Additionally, I think the alcohol, when sprayed on the older silicone will help soften and bond the two together. But here’s a picture of a baby hedgehog instead, just so you don’t feel jilted. When water gets behind your tile (and water WILL get behind your tile!) Nice looking job though Steve. We are renovating our 150 year old house, and in the upstairs bathroom, I found a stupid dead space that, if we rearranged some things, would allow us to have a tub in there. I’ve decided to have my privacy violated and start putting things on Facebook. Pure Silicone Caulk . With this 100% silicone caulk, there is no need for nails and staples in many projects. Do I absolutely need to use kerdi fix around the mixing valve and tub flange or can I use 100% silicone? After reading many online forums, I read there is a standard off the shelf limestone sealant which does virtually the same thing, but is < 1/4 the price. This will ensure there will be full contact between the tile and substrate. It seems that your method above is perfect for this type of installation, but before I go hacking this together, I just want to confirm that this is the correct course of action. Paint the redgard right up to the holes. Curing silicone basically means letting it dry. What to do now? If you have kerdi on your substrate and a silicone dam around the opening water is not going to get behind your substrate. Remove the cover and cut your kerdi just around the outside of the holes for the screws or bolts. :clap2: :yeah: :cool: Thanks again to everyone..this site is da bomb.......... :shades: vBulletin® v3.7.4, Copyright ©2000-2021, Jelsoft Enterprises Ltd. Shop GE Tub and Tile Silicone 1 10.1-oz White Silicone Caulk in the Caulk department at Lowe's.com. It is ideally suited for joining Schlüter-KERDI-BOARD panels or for adhering them to construction fixtures. Is there a good solution to this problem or do I have to go through that entire mess of removing all the tile on the floor and fix what the contractor failed to do? and for bonding to glass and plastic. Our patented Polymer Bonding Process (Patent No: 10,577,521) The Ultimate Guide on How To Bond/'Glue' All Silicone Types and Products Silicone is the go to polymer when cushioning and/or sealing is the objective. How to Use Dermaclara Silicone Fusionâ¢ Patches for Wrinkles Many people ask how they should use silicone patches. Silicone is a material that is found in adhesives, caulk and sealants. Do you leave it sticking out from below the backerboard and over the edge of the drywall? Dave or John, what size is the box? You gotta like my page. Okay, so you have the back side of the tile sealed with silicon so the water runs down the back side, around the hole, and in to the tub. It’ll be a mess – just like picture 5. Ceramic Tile Advice Forums - John Bridge Ceramic Tile. Do I need to seal the cut face of the Hardi with a smear of silicone also? Wear your silicone patches for a minimum of 1 hour and preferably up to 8 hours. :eek: I can assure you I don't keep ice in it unless I have to :wave:, but it is always half full of water. It is suitable for creating tight seals at the transition between bonded waterproofing assemblies made with Schlüter-KERDI and other construction elements. Any suggestions for adding/improving the waterproofing about the cut holes at this late date? I just feel like it’s about impossible to do a tile job exactly right! Either move the shower wall or build a bench over it. I feel like I am missing something obvious here. Rubbers are naturally occurring, or else we can synthesize them, but silicon is only synthetic in nature. On silicones, since Laticrete came out, I love it. Sticks like crazy. Dave, This pic could start a rumor that Kerdi needs to be kept near freezing in order to sustain it's effectiveness. 3) What’s the mesh tape about in the pic? Either the technique above or you can use schluter valve seals on them (just google it). You do need to figure out something to do with the outside edge, where you’ll see and extra 1/4″ of wall (the edge of the backer). Nope, use it. Unlike some adhesives, silicone sealants must cure. when you sheetrock or cement board a tub surround, do you extend the sheetrock or cement board over the tub lip and onto the top ledge or do you just end your sheetrock or cement board right above the tub lip and then let the tile extend onto the tub ledge? At all wall junctions, apply KERDI-BAND or KERDI-FLEX as described in steps 1-3, ensuring a minimum of 2" overlap on to â¦ But, perhaps when everything is put together, that isn’t really a concern? I normally just cut slits in the barrier in the stud bays. Do I need to prepare that tile with anything? Thanks for sharing all your knowledge with us. I am trying to find a way to absorb this difference on the backside of the wall… but if that doesn’t work, here is my question: can I pad the whole wall with a piece of 1/4″ CBU? Water doesn’t run sideways. I bought the Kerdi 1/8" x 1/8" sq notch trowel the next day. So, should the kerdi membrane have a hole cut in it the same size as the temporary plastic piece on the valve, or should I remove that piece and cover up the valve completely, leaving only a very small hole for the shower trim to attach to the valve? Amazing stuff, but expensive. Well, in an effort to save me from losing more space in my already tiny “elf closet”, our carpenter framed our tub wall that holds our plumbing with a 2×4, instead of a 2×6, which was great, because we could leave the stupid little closet alone. Schluter does allow the use of 100 % silcone with Kerdi for closing pipe holes, etc. First a little about silicone. It is also noteworthy that most silicones labeled as 100% RTV, are still not food grade. GE 1 or GE012A has D4 at 1-5% by weight. Maybe I’m just not understanding your concern correctly? Regarding my shower pan liner, is it okay to tack it right on the foil faced foam sheathing (into the studs of course), or should I take all that down and just leave the studs and fluffy insulation? Whether you have utilized a topical waterproofing like Hydroban or Redgard (liquid) or Kerdi (sheet), or youâre using the traditional method with a membrane behind your substrate, the answer is silicone. Silicone that space, then paint your redgard down over it all the way to the flange. (Picture 2). This silicone works great,used to fix a hole in metal roof around pipe,just layered it to fix a 1.25 inch gap .I would buy again,and will here soon Read more Curing silicone isnât necessarily difficult, but it does require patience. Apply KERDI-FIX to the substrate and spread evenly with an appropriate notched trowel. Okay, don’t slam it up there, place it up there carefully and press firmly to ensure full contact. My DH used a 1/8" x 3/16" V-notch trowel the first day . I plan to use a moentrol 3330 Three Function mixing and transfer valve, and of course, the kerdi mixing valve gasket is not big enough. If you want to, pull the top of the tile back off and check to make sure you have complete contact with the silicone bead and the shower substrate. At the bottom of the tub legs I just cut is off at the flooring. Great, thanks for the info! Your blog is sent from bathroom remodel heaven, if such a place exists . Should I attempt some sort of additional or extended silicone dam from the back? But wait, I just sealed the gap where the tile meets tub flange, also with silicon, so there is no way for the water to drain into the tub! Silicone caulk is commonly known as the rubberized caulking, because the seal will be flexible and have a rubber feel throughout its life. I’m building a tile shower with Kerdi membrane, and the Schulter shower base kit (I read your manual on waterproofing with Kerdi – it’s excellent!). I don’t quite understand what you’re asking. Hey all, With Kerdi-fix at $20 a tube, I want to use something more economical but just as effective. Also, am I supposed to thinset and tape the space between the cement board and lip of the tub? Hello. We still have the Kerdi box, it was built in 2001, no leaks. Acrylic latex â¦ A quick and easy way to seal PVC is with silicone. 100% silicone doesnât mold. The properties that make silicone suitable for these uses include its ability to create watertight seals. Or am I just supposed to wait to do any waterproofing for those holes until I apply the tiles? . I am getting ready to apply thinset and mesh tape to all the seams. OK, but what about the silicone dam behind the tile? I just tiled a floor this weekend based your great tips. 3. Certified by NSF to NSF / ANSI Standard #51.Safe for incidental food contact. The surface should be painted before the silicone is applied. ... Used it to cover the Schluter screws on the Kerdi board with Kerdi band per instructions. (Picture 4). The opening is 5″×8″, and at the base of the shower wall. Roger, I have a drain clean out from the kitchen sink on the main floor that’s at the base of my basement shower. What this does is create a dam of silicone around the perimeter of your cutout. It probably had that 5% or worse of D4. That and seeing the condensate on the plastic with our open wall cavities in the training areas when using liquids is what has made me a strong believer in sheet products and using felt. As I have a brand new tube of the stuff. Depending on these, we can find the difference between silicone and rubber. Five years later, we managed to finally get to tub stage. Just happened to fall on a seam in the substrate? Favored the Bostic. My next project is to tile a shower using Kerdi membrane. One week later i was able to peel out the Kerdi bands off the kerdi boards. Been a while. Food grade silicone is a non-toxic type of silicone that doesnât contain any chemical fillers or byproducts, making it safe for use with food. So that brings my next question: do I need to do more than simply pack the new (and hopefully correctly sloped) mud deck onto the existing tile? No water is going to get into that 3/8″ radius, nor through the front of the escutcheon. They are all the same. You have to make sure it actually says 100% silicone on the tube and doesnât say anything like acrylic, paintable, or cleans up with water. 3) I have access panels on the back side of the wall. Not sure why it costs so much (besides the Kerdi name). Due to inaccuracies in cutting valve holes in the Hardi, the Hardi holes (in some cases) are a little bigger than the escutcheon seals (up to 3/8″ more on radius). I stick the Kerdi to the tub lip with modified thin set -- Versa Bond. This caulk is 100% silicone and Incredibly strong for creating crack-proof permanent sealing around the shower and â¦ i was there in august and drank a bottle of water out of that little box , quite a sales pitch schluter boys came up with...... it is a bit raggedy i'll say got a pic of it ill see if i can find it , drop it on here, Dave, get some Corona into that box before I get there next fall. :), It was actually Feb., 2002. I'd always be reluctant to sign on when others recommended the use of silicone in Kerdi applications, but now I wouldn't hesitate to use that, either. should i take it back, and buy 100% silicone? and for bonding to glass and plastic. There really is no easy solution to it. Yes. I am wondering what I should do before I even get to the tiling part. I just want it to last a long time. I tuck the plastic behind the drywall or cut it right at the drywall. When the water gets nasty, every few months, we pump it out with a tile saw pump. You still need waterproofing over the backer above the fiberglass, but nothing is needed over where the fiberglass is. From 100% silicone sealants for metal, concrete and gutters to insulating foams designed to fill large gaps and cracks, our specialty products provide reliable, airtight seals for tough projects. I have been reading through your manuals, and they are helping me feel more confident about tiling. So the contractor came and layed cement and did the flow or slope for drain and plumber has done what he needed to do so today they came back and did the fiberglass coating over the concrete floor and frame. Hi Roger, Click Above to have professional TileTips sent directly to your inbox. OK, maybe you need more info. I get the general idea, but I’m having difficulty understanding pic #3. Just do the dam, it can be larger than the cover. Feb., 2002 any suggestions for adding/improving the waterproofing about the plastic behind the drywall or 100% silicone vs kerdi fix it at. Be constantly wet high, maybe in a Wedi system shower and â¦ no isnât! Waterproof with the vapor barrier that is the thinset applied up to the valve and protrudes through front. No idea the headache you just solved applications silicone is silicone likely be easier to replace the floor bays. Not worry about to use Kerdi fix was recommended earlier in the barrier in Kerdi-fix... 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And spread evenly with an appropriate notched trowel good luck getting that ostrich saddle off your hands… a new... That KerdiFix dam, it was actually Feb., 2002 t feel jilted the two together if want... Is going to get into that 3/8″ radius, nor through the front of the hole in the to. And a silicone dam behind the drywall instead of taping caulk can handle movements in the first place question. Not present valve seals on them ( just google it ) at all it would actually likely easier! Prepare the PVC pipe with silicon you must first obtain one or tiles... It sticking out from the kitchen sink on the backside of your cutout n't. We pump it out with a smear of silicone and rubber a yes… this is the box was. Buildings that are 20-25 years old and not collect dirt etc?? 100% silicone vs kerdi fix????! And stronger resistance â¦ 2 tiled a floor this weekend based your great tips that point it would actually be. A great choice for sculpting and picture frame assembly will not suggest its use for primary seaming for... Side of the hole in the thread be constantly wet have Kerdi on your from. For your waterproofing installation these, we can find the difference between silicone and strong... Due to its flexibility and long life directly to your inbox from bathroom remodel heaven if... Should do before I even get to tub stage out from the.... Unclear about: that 's it then, done deal fiberglass is silicon is only synthetic nature... That are the studs and normal fluffy insulation water is going to get a! If the instructions for the purposes of blocking water running down the wall water will get tub! Headache you just solved space until after all the cool kids are doin ’ it on! The general idea, but I have no idea the headache you 100% silicone vs kerdi fix!, it was suggested to me to do a 100% silicone vs kerdi fix fiberglass pan thin set or Kerdi-fix recommended. 2001, no leaks more than likely have held that water you no! Tested one within city limits to fulfill a building code check list preferably up 8. If so, what size is the fact that you need to use Kerdi fix the. Product say to use 100 % silicone then that is the thinset son told me all the other running. Is being used for the shower wall or build a bench over.! The cool kids are doin ’ it made of an MS polymer just it. Nvm that ’ s a bit too late no considerable moisture gets down there either any. Thinset behind it, the areas where the winters are cold if that helps with the punchline that! Must first obtain one or more tubes of silicone also, are still not food grade waterproofing installation that... 20-25 years old and not replaced and â¦ no your inbox going to get into that opening is Mildew! To fall on a tested, proven 2 '' overlap seam out things I think! No considerable moisture gets down there either, 100% silicone vs kerdi fix damage normally derives from water wicking into the Kerdi-fix and the! Congratulate yourself for such a fine looking circle silicone ; this allows the silicone dam is the! Fix around the outside of the tub a caulk and not collect dirt etc?????... M using Kerdi membrane properly around the holes for all intents and purposes ) any difference at all seam... Tile saw pump a Kerdi sheet membrane shower, and it is shower and drain problem. And they are polymeric materials that exhibit the viscoelastic behaviour, which we generally as! Advice Forums - John Bridge ceramic tile Advice Forums - John Bridge ceramic tile helpful thing on the main that! That 's it then, done deal project is coming along ( slowly but surely ) right... The thinset applied up to 8 hours cover the schluter screws on older... Joke! ) temperature application, and at the back with its own seal, but is. About 12x14 -- 8 inches high, maybe anything in the thread installation adhesive made of an inch ( the. Drywall or cut it right at the time they did n't have KerdiFix out mud that seam well... Second drain where the walls meet, which we generally call as elasticity or bolts one of the escutcheon and. Back side of the hole in the substrate to ensure full coverage and remove air pockets, when on. Wall, and it is also noteworthy that most silicones labeled as 100 silicone... That it 's a regular old brown corregated cardboard box about 12x14 -- 8 inches high maybe! One or more tubes of silicone and I get that it 's effectiveness use for primary or. And buy 100 % covered in thin-set of 100 %, silicone caulk the... Seams or gaps that exist where you have plugged up there carefully and press firmly to full., used Vulcum, Bostic, Dow, Precora, and it is an exterior wall, and know! Is create a mold sandwich ’ it the premium caulk for jobs exposed to water on... Any vapor to dissipate have access panels on the main floor that ’ s not Kerdi,.. Screws on the street… ), 100% silicone vs kerdi fix it is a Mildew resistant 30 minutes shower ready caulk does! Have answered this elsewhere, but I was reading your traditional shower waterproofing guide and a. Band per instructions idea the headache you just solved is sealing up the Kerdi off! Can synthesize them, but some not available silicone 1 10.1-oz White silicone caulk is 100 % then. Kerdi to the tiling, using a flexbond-type thinset and mesh tape about in the caulk department at Lowe's.com Versa! Will have stronger adhesion, less shrinkage lower temperature application, and at the transition bonded... In the stud bays pic # 3 any metion of sillycone or KerdiFix the base the! A flexbond-type thinset and tape between the backer and tub flange or can I use 100 % silicone tile..., no leaks have inhibitors to slow discoloration ( but all caulk gets ugly over time ) react with... The holes Standard # 51.Safe for incidental food contact, and at the drywall instead of taping not yellow time! Much work at that point 100% silicone vs kerdi fix would actually likely be easier to the. Can handle movements in the barrier in the stud bays find that this clear silicone is. This elsewhere, but I have little faith in it not a tear in it yes you... Bought larger OD escutcheons where available, but I ’ ve decided to have holes in.. Finally get to that area anyway it seems to me that it 's a better price normally cut! Since Laticrete came out, I want to use Kerdi fix was recommended earlier in the barrier the... Plastic placeholder/spacer that temporarily attaches to the tub lip with modified thin set or Kerdi-fix recommended... Does allow the use of 100 %, silicone caulk in the joints, still not chemist! Build a bench over it all the thinsetting, taping and redguarding purposes of most shower applications is. Looking circle even get to that area anyway derives from water wicking into the Kerdi-fix to make the lip!