Redgard over thinset. 4) is required for use in bonding to the product.
Redgard over thinset 2 Manufacturer Custom Building Products Technical Services . Custom recommends modified thinset over RedGard. Is Thinset compatible with RedGard? When it comes to the walls, thinset over Redguard will suffice. A rubber float can make your work much easier. But From what I have read, the premixed thinset does not dry out to form a good adhesive bond when applied over/under a non-permeable membrane like Redguard or the Kerdi-band products. utilizing RedGard Seam Tape over the top of the joint. My idea is to use cement board and 2 schluter niches on each wall. Did you fur out your studs such that your CBU laps over the tub's tiling flange? My opinion; worth price charged. I am tempted to go with this one: I've researched the topic of whether it's possible to paint over Redgard, and the answer is yes. Only where greenboard meets greenboard (out of, and far away from the shower) did I use joint Redguard over hardibacker. Then tiles. 10. Spread the love Answer Even though RedGard can be used on drywall, when all of their product information is taken into consideration, it is not the case that RedGard can be used on Drywall in a damp environment, as they claim. I'm thinking that using the Redgard will at least give protection for those times when a visitor may use the shower. Laminate GoBoard to a concrete floor by fully embedding it in mortar. Thus, it’s easy to apply. It’s interesting to know that Installing uncoupling membranes over concrete. He then will apply the thinset and tile over the cement floor. :smile: It seems the no no's with RedGard are [Archive] RedGard over Hardibacker Tile Forum/Advice Board Ceramic Tile Advice Forums - John Bridge Ceramic Tile > Tile Mesh tape and thinset, then Redgard. Apply thin-set to the intended surface using a minimum 1/4" x 3/16" (6 mm x 5 mm) V- notched trowel. Should I use RedGard over Additionally, you might think about using RedGard over the seams. If I could apply the thinset to the back of the tile, one at a time, might be easier. Once that's dry, you Redgard over all the cement board and mortar with two coats (1 coat = crack isolation for concrete Unmodified thinset consists simply of cement, finely graded sand and water retention agents. Here's the kicker, it looks Okay, so skim flush with the tile redi lip with regular thinset, then redgard over the skim coat/tile redi seam, then attach tiles over the joint with the laticrete 300. I thought I was supposed to apply the Kerdi-band with Kerdi-fix (confusion comes from seeing Wedi install video). • Can GoBoard be installed over concrete floors? Yes, the concrete floor must be clean and fully cured, and surface imperfections must be pre-filled with mortar prior to GoBoard installation. Never once had an issue. The concrete backer board has been installed over bare studs pinching what seems to be at least a couple inches of pan liner behind it. After I tape the joints and apply thinset to them, I'm We just read the article in Fine Homebuilding No. For the floor I am going to use Durock Cement boards, versabond thinset mortar and 6x6 porcelain tile. (3. I use RedGard over cement board on every shower I build. Redgard has an open shelf life of about one year. 04-22-2006, 02:55 PM. _____ Dan - a DIYer in what about putting on a "skim coat" of thinset over the Redguarded Greenboard before tiling? I'm not actually sure what this means, Yes, RedGard waterproofing can waterproof cement boards (DuRock, Permabase, Hardiebacker). I'm installing 13" porcelain tile (1/4" thick) on a tub surround. It doesn't seem that Everwhere hardi is concerned, I taped with a proper hardi-tape and thinset. Non modified doesn't. RedGard® Waterproofing and Crack Prevention Membrane Outperforms Competition Technical White Paper REDGARD® WATERPROOFING AND CRACK PREVENTION MEMBRANE By Steve Taylor Director of Architecture and Technical Marketing, Custom Building Products RedGard Stated Coverage Proven to be Most Accurate in Industry RedGard Seam Tape by at least 2€ or by butting the joints and utilizing RedGard Seam Tape over the top of the joint. Rather-Be Yes, you can paint over Redgard! If you’re wondering whether it’s possible to apply a fresh coat of paint on top of Redgard, the answer is a resounding yes. However, some customers have experienced issues with bonding and grout cracking over time If the floor is solid, the redgard will bond to it, and the tile and thinset can be applied to the redgard - then what's the point of the hardibacker layer? Note: The best solution I've seen so far is the Ditra system: - it can be bonded to OSB RedGard over Hardibacker: Kanit: Tile Forum/Advice Board: 3: 11-09-2007 08:42 AM: I have used Versabond from HD and it works great but any modified thinset will work. I think you will be fine laying your Ditra in modified thinset. If you I'm currently in the middle of a bathroom remodel. My plan is to trowel the thinset (Kerabond with Keralastic) over sections of the RedGard and burn the back of the tile with the thinset as I'm setting the tile. It's my first time using redgard, and I tested it thoroughly (I thought). I’m sure there are others. I am using ceramic tiles. Only where greenboard meets greenboard (out of, and far away from the shower) did I use joint Some membranes, such as RedGard, change color when they dry. Just clean your tile well before you grout. My plan is to waterproof it with RedGard before setting tile. Installed the Schluter pre-sloped foam tray and curb onto new plywood subfloor using Laticrete 254 Platinum (polymer modified thinset mortar). Connect these corners at change of plane with the RedGard Fabric Seam Tape, overlap and use mortar. Can I use modified thinset over Schluter? In general, we don’t recommend the use of modified thin-set If you're using Redgard as a moisture barrier (which I assume is what you're doing) you tape and mortar all the joints. I've read where using modified thinset over ditra is not recommended because it takes a very long time to cure. Mix your powdered mortar with cool water until it reaches peanut butter consistency. ft. So my idea is to staple 15 lb felt paper to the bathroom subfloor. 4) is required for use in bonding to the product. Note that other underlayment membranes are also acceptable as long as they are waterproof. The VersaBond Greg recommended is such a product. Pure speculation on my part, but I would not use RedGard over greenboard in a shower. Retired Tile Contractor . Now let‘s go over using it on different shower materials. That’s all you should need in a shower if you already have a pan. The thinset flows around the fleece of the Kerdiband, holding it in placeIOW, in the conventional sense, things aren't bonded together like a tile to the mortar, but it's entirely mechanical. Self-Leveling Underlayments are not suitable for use over RedGard Uncoupling Mat Membrane. RedGard® Waterproofing and Crack Prevention Membrane Outperforms Competition Technical White Paper REDGARD® WATERPROOFING AND CRACK PREVENTION MEMBRANE By Steve Taylor Director of Architecture and Technical Marketing, Custom Building Products RedGard Stated Coverage Proven to be Most Accurate in Industry Originally I was going to put Redgard over it but I doubt it will stick to the shower pan and actually this morning I was looking for Custom 9240 locally. Follow those tips and your RedGard application will turn out perfectly waterproof. At the outside edges of the tub front (the two vertical parts of the tub on the "left" and "right" side that go from the tub deck down to the floor) I don't have enough room to place tile, but I am a bit worried about water splashing there. CBU on top of thinset directly over the subflooring, Red Gard , thinset and tile. Mostly, I think Kerdi is overpriced for what it is, with having to So I applied Redgard over my Hardie boards and I did not sand down the thinset that is in the joints. Good adhesion, no complaints. For further assistance please contact us at 1 800 282 8786 option 2. Well, you can’t paint over it properly. Chances are if they screwed up, the thinset wouldn't have made a difference anyway. Is it necessary to put RedGard on top of cement board? Modified thinset needs air to dry. I filed over tile. Place the RedGard seam For use over concrete, cement backerboards, drywall, exterior grade plywood, FlexBond Premium Crack Prevention Thin-Set Mortar compatible with RedGard Waterproofing and Crack Prevention Membrane. The wife comes home just after I finish waterproofing the Hardieboard tub surround and decides that a solid surface surround is the way to go after all. I'm getting ready to lay the second layer of the mortar bed but trying to work out how I will It would seem that RedGard should be applied directly over the HardieBacker in the WET areas of the shower as the main goal. It’s tile adhesive. Prepping the Surface. You don't need to Redgard the whole shower, just the joints and any niches or seats. ; Do not use RedGard on drywall in wet areas like showers or under drains, as even the smallest leak could lead to a Came here because I had the same question about using redgard over schluter as Kathy asked about. They put PVC liner directly on the slab, and covered with about 3" of deck mud, thinset and tile directly on that. 12 American National Standard Specifications for Crack Isolation Membranes for 1. Though effective, installing the Kerdi membrane is hectic because you have to lay thinset mortar, cut the pliable sheets into ideal sizes and then fit them on the walls. Looking for a rec for the best thinset to use in over Redgard waterproofer on a bath surround install. The membrane creates a barrier between the thinset and drywall. Let me tell you why. 78 L) 40 sq. Then the seam between the cement board and the niche I apply kerdi band. A Guide on How to Apply RedGard Over Durock. mudded and taped all seems with thinset. kerdiband 4. This is the best redgard video I have ever seen on the i Look for varieties that are 100 percent acrylic if you know that you are going to be painting over Redgard. If you Redgard, Mapei HPG, whatever. I assume that using some sort of modified thinset is the answer, but which brand? Also, can the same thinset be used for floor tile in the same bathroom? Over the weekend, I ripped out our old shower down to the studs, put up plastic, new cement board, cemented the joints, waterproofed with Redgard, & began tiling our bathroom with Daltile subway tiles and SimpleSet Pre-mixed Thin-set Mortar. What some do is get an 1/8" trowel, trowel thinset in that area where the mosaic will be installedlet it cure, then add thinset on top of it to set the tile. In Do the same for gaps and cracks that are 1/8 inch and wider. 09-02-2011, 10:21 PM. Skip to See what other customers have asked about Custom Building Products FlexBond 50 lb. So, I’m not sure if I’m answering your Step 5 – Install the DITRA Over the Thinset. Redgard over shower pan mud: mike85: Tile Forum/Advice Board: 12: 10-16-2012 09:22 AM: Redgard mortar shower pan that already has rubber liner? lacrebob: Thinset. I was planninig on putting some Redgard over this There has been some discussion recently about whether it's a good idea to apply Kerdi (attached with thinset) over JC, you should look back through recent posts. I am redoing the bathroom. 4 or A118. The dry mix (where you add the If you'll visit the Custom Building Products website for RedGard and view the Technical/Installation portion, you'll find that a modified thinset mortar is required for setting tile What Kind of Thinset Should You Use Over RedGard? Use a high-quality powdered thinset mortar to tile your entire shower walls. The thinset I used for this was polymer modifed (Flexbond by Custom Building Products). 66 for 1) Roller - $5. finding good youtubes on most of this but confused about whether i should be stapling those thin clear moisture barriers to the studs, under the cement board which will add additional holes in the moisture barrier when i screw the cement board to the studs, OR I have seen no moisture barrier and some videos of people putting redgard all over The Flexbond modified thinset, which is sold at HD, lists redgard as one of the surfaces it can be applied to and therefore, following manufacturer recommendations, a person should be using a modified thinset like Flexbond over Redgard. Now that you know the features of Durock and why it’s necessary to waterproof such a surface, here is an in-depth guide to applying RedGard over a Durock cement board. As you will So the cost is about the same (already have enough thinset), im just wondering for a DIYer which is truly easier. I just finished hanging the Durock around the 3-wall alcove tub. Stack Exchange Network. Anywhere you have painted RedGard, use powdered thinset. It’s a liquid membrane applied to substrates with a paint roller. My question really relates to the type of thinset to use. When’re-introduced to water, it will re-emulsify, resulting in the tiles If you'll read the instructions online for the RedGard, you'll find that a modified thinset mortar (ANSI A118. Most manufacturers, including Custom Redgard Uncoupling Mat and Laticrete Stratamat, will want you to use an ANSI 118. I do 'know' from reading here that Redgard is prolly the best because people If you mix your thinset a little on the dry side, skinning over will likely occur before you can set the tile. Is it acceptable to apply/comb the thinset onto the tile only? I have never set tile before and I am thinking I shouldn't apply thinset to the wall because it may skim over before I get the tile set. Apply a second coat of Redgard. I used cement board as the substrate and applied Redgard for waterproofing. Join Date: Hell even do schluter felt over drywall like it's intended to do. My issue is that schluter uses thinset to glue down the seams which feels weird since thinset will wick water and is not waterproof. Substrate is 1/2″ hardibacker and tile will be a standard white subway with Pre-mixed thinset isn’t really thinset. I trusted a friend knew what he was doing that was Hopefully you smoothed the mortar. You really want to use thinset mortar in a wet area like that, anyway. Let dry for 1. Vapor barrier behind cbu, cbu joints blocked from behind and taped on the surface? Pre-slope, membrane and final motar on the floor? Redgard and the paint on waterproofing systems have a different failure point. Using Mastic over Redgard or any waterproofing membrane is a big no-no. Coverage may vary based on installation practices and jobsite conditions. it seems that modified thinset can also be used, but this takes longer to dry. 3. RedGard On Hardibacker Board. As long as there isn’t any thinset coming out between the tiles or on the front of the tiles, you’ll never see the thinset. Apply a 3 reasons why you cannot paint over RedGard: Generally, you can paint over any surface. I'm about to buy a thinset mortar to apply large format tile (12x24) onto a shower wall (alcove bathtub). 5 Gallon (13. And this article mentions that Redgard mat is fastened down with flooring screws or construction adhesive, • Can GoBoard be installed over concrete floors? Yes, the concrete floor must be clean and fully cured, and surface imperfections must be pre-filled with mortar prior to GoBoard installation. 76 Thinset - $6. The only time you can lay Kerdi over RedGard is if you are renovating the shower and the All you need to do is to apply thinset over the RedGard and follow it with primer application before you paint. They shouldn't need thinset. They either had improper coverage, didn't mix the thinset properly or used some kind of mastic hybrid. Jump to Latest If you are concerned, you can always drill some holes and the repair with thinset and redgard . CUSTOM BLDG PRODUCTS LQWAF1-2 Use a Yes exactly! As I found out redgard over thinset and mesh tape between cement backer board and tub/shower pan will not hold up very long. But the thing is whether you can paint over RedGard or not. In fact, to my knowledge all the roll on membrane manufactures and all the sheet membrane manufacturers, Over the weekend, I ripped out our old shower down to the studs, put up plastic, new cement board, cemented the joints, waterproofed with Redgard, & began tiling our bathroom with However, Redgard's data sheet says: "Install tile or stone with a Custom® Building Products polymer modified mortar that meets ANSI A118. Note that Step 5 – Install the DITRA Over the Thinset. It took us a while to figure out how to mix small quantities of the thinset mortar, It was plenty for our needs and we have some left over. I want to be as cost effective as possible as these projects get expensive For outdoor Additionally, you might think about using RedGard over the seams. How can I remove the Redgard efficiently so I can sand down the thinset? I may try using a utility knife and attempt to peel off the Redgard. jarnal. Without fear of Unmodified thinset consists simply of cement, finely graded sand and water retention agents. IF the area where the mosaic is going isn't too wide, you can tile above and below, then using those tile and a grout float, or something big enough to bridge those two surfaces, set the mosaic deep enough so RedGard® SpeedCoat ® Waterproofingand CrackPrevention Membrane / TDS-104 RedGard® SpeedCoat® Waterproofing Membrane Published Date: 6/1/2023 . 2 L) 140 sq. This makes okay sense to me, RedGard® must be primed with properly applied sealer or a primer coat of RedGard®, consisting of 1 part RedGard® diluted with 4 parts clean, cool water. The other strange thing about DIY research ala interwebs is that some things do not pop up until much time has been spent investigating what one does find. When tar paper or poly is not used as a vapour barrier behind the CBU, it is suggested for waterproofing niches, shelves, and complete shower walls, among other applications. Do I use unmodified or modified thinset before applying Redgard? Seems like modified goes over Redgard, but which one goes under it? Thanks! Save Share Reply Quote Like. It may be possible to go ahead and apply the mesh tape and thinset over those joints. Can this be used as a basecoat I plan on removing existing vapor barrier and applying Redgard over 1/2" cement board. After all the seams are taped and filled I’ll apply hydroban latticrete over the whole thing. Out of my wheelhouse. Menu. [Archive] Urgent please help -Is it OK to apply Self leveling Mixture over Redgaurd? Tile Forum/Advice Board Ceramic Tile Advice Forums - John Bridge Ceramic Tile > Tile & Stone Forums > why dont you just float some multi purpose thinset over the low spots. However, OSB is water-resistant. Allow the RedGard membrane to cure for 1 to 1 1/2 hours. OK, doing my Emily Litella impression, "Nevermind". Can i apply redgard over shower pan mud as extra protection,even though i have a vinyl pan liner installed under mud _____ MIKE Sponsored Links: 06-24-2012, 09:15 AM #2: Richard Tunison. 1 Product Name . Most weekend warriors use redgard and they use it incorrectly. Okay, so skim flush with the tile redi lip with regular thinset, then redgard over the skim coat/tile redi seam, then attach tiles over the joint with the laticrete 300. He would use the redgard over the Hardieboard shower walls also as the way to waterproof them. My opinion; worth price charged. Redgard. So the thinset is sticking out and has created an uneven surface for laying my 12x24 tiles. Steam applications are the toughest in terms of vapor pressure. There are Redgard is probably the most widely used liquid applied waterproofing membrane for tile in showers. Everything requires correct application, so yeah, correctly applied redgard will hold water and incorrectly applied Kerdi won’t. In searching the forum and reading the instructions on the Redgard, I've gotten confused over the theory behind curing the thinset. Once the Redgard has dried/cured, it is designed to have the thinset and tile applied directly. I used Mapei type 1 thinset in a shower area over a waterproof membrane (red guard) . Redgard is meant to have thinset applied over it so no prep is needed. talisman: Tile Forum/Advice Fabric Membrane to size ahead of mixing adhesive mortar (thinset) for installation. This is an older thread, you may not receive a response, and could be reviving an old I lay the preslope for a mortar bed shower pan last week and waited 48 hrs to cover with the pan liner. You can use one to work the DITRA RedGard® Uncoupling Mat - CUSTOM Building Products RedGard is a very helpful product that can make waterproofing and sealing certain areas of the home quite a bit easier. 7 M 2) 3. Don't spread more thinset than you can cover in just a few minutes. I have found that Kerdi-band is meant to be installed with un-modified thinset. That's why Schluter recommends non modified. Most people are usually reluctant about applying thinset over OSB because it contains water. Redgard Uncoupling Mat is rated as an A118. Outside of the shower the floor has hardibacker over plywood subfloor. Redgard is a waterproofing and crack-prevention membrane that. Of course, as with any sealant type material, people RedGard or Custom Building Products’ Wonderboard is a prime example of an underlayment membrane that can be used to install tiles over cement board. It doesn't seem that silicone will adhere properly to the Redgard. Face it, even if you use modified over Ditra, unless you don't have proper coverage, the thinset will still cure, it just takes longer. I am going to use Redgard waterproofing (roller applied) membrane over cement bd, then thinset, then the tile itself. If I could go back in time I would I've already installed the durock cement board and thinset the joints. 11-09-2015, 01:06 PM. Then put a skim coat over the thinset because it looked weird and I needed to make the transition look better. What Is A Kerdi And A RedGard? We must define these two products in order to Everwhere hardi is concerned, I taped with a proper hardi-tape and thinset. ACTUALLY - the industry is in need for a solution here. . RedGard® SpeedCoat ® Waterproofingand CrackPrevention Membrane / TDS-104 RedGard® SpeedCoat® Waterproofing Membrane Published Date: 6/1/2023 . Both your listed To install RedGard seam tape, follow these steps: Clean and dry the surface. Related Product(s) RedGard® SpeedCoat® Waterproofing Membrane. Ideally that’s all done before the pan but as long as it drains into it should be fine. RedGard ® SpeedCoat ® Waterproofing Membrane . It’s mixed with water before it’s ready to be spread out on the subfloor. Schluter introducing their own modified thinset, for example. I do not recommend tiling over drywall in a shower. If you can paint a wall, you can use RedGard. Actually, since I had to remove it and start over, there was a Use the appropriate seam tape and thinset just like any other hardiebacker seams. Which thinset mortar do I use over the redgard? I am using 12x24 tiles on 1 wall and 4x12 on the other 2. Agreed. Can you paint over waterproofing? In general, waterproofing membranes can be painted over with water-based paints. Your right, I probably am making it overcomplicated, I just want it to last for a long time with no issues. 78 Aqua defense - $146. Always used cement board of some kind (either durock or hardi), mesh thinset joints, pan liner, mud bed, redgard/aqua defense. Which thinset should I use? The mfr just states to use a "custom polymer Depends on the tile you're using but you can make the similar thinset by using admix (name?) and water to mix your thinset. RedGard or Custom Building Products’ Wonderboard is a prime example of an underlayment membrane that can be used to install tiles over cement board. You can now lay the DITRA over the thinset. If the screws high (more than a hair) you might want to try to drive them flush. That is mainly the area that you didn't paint enough or good enough. If it’s a weekend warrior doing his shower, you’re right, there’s a learning curve with Kerdi and I’d suggest he use a true 2 coat like s1-k(which goes on same as redgard and can be cheaper) or use something more expensive like Wedi board and Wedi Waterproofing over the tape: Here you are going to put something like redgard over the tape and cement board. Redgard, Mapei HPG, whatever. The only one that has specific requirements is schluter. Did you paint over the Redgard surface in your basement with the primer and acrylic paint as planned Redgard sticking to deck mud and thinset sticking to Redgard: YuhtYuh: Tile Forum/Advice Board: 47: 05-14-2013 09:08 PM: Painting Durock help. I am not aware of any comparative studies done on tile installation products so individual recommendations are based largely on personal preferences. 11; RedGard over Hardibacker Tile Forum/Advice Board. CBU on top of thinset directly over the Can I paint on top of RedGard? You can apply thinset over the RedGard and prime and paint over that. I would use a topical linear drain. As you will see with its counterpart, Whether you Kerdi or RedGard your walls, you can easily tile over each, as long as the waterproofing material has fully cured. I have easy access to Ditra, Redgard's uncoupling membrane, and Prova Flex membrane. Step 1 – Gather Equipment Needed Kerdi is waterproof, it doesn’t need a liquid membrane over it in totality. Redguard over hardibacker. You put thinset over the mesh tape just like you put mud over drywall tape. There is no industry standard that I am aware of that supports the use of a liquid membrane on drywall in a wet environment. So it would be the original concrete, slope of thinset, redgard, then tile/thinset to bond tile Everwhere hardi is concerned, I taped with a proper hardi-tape and thinset. Thanks, Kman. RedGard can be applied to cement board panels in two ways: Roll it on the wall with a 3/4-inch nap roller or spray it on the wall. But, I don't want to apply thinset to my 5/8 inch plywood subfloor, because that will cause extra labor/damage/expense when the tile floor will be replaced in the future. Both your listed mortars would qualify. 10 Crack Isolation membrane. Then coat the paper with RedGard. Modified thinset needs to dry to reach full strength. 4 when mixed with water. I don't know what to do about the wall pan junction. unmodified thinset should be used to fuse the tile in place. Without fear of breaking either, you can use either of these to bond tiles over OSB. The preslope and top mud layer have been done for the floor and I have performed a successful flood test. I just wanted to note that I used Redgard over Harbibacker making sure to dampen with a sponge before I rolled on two coats. I do 'know' from reading here that Redgard is prolly the best because people use it for steam shower wallls, and the Redgard manufacturer warrants it for (residential) steam shower walls too. 98 or 2. What It would seem that RedGard should be applied directly over the HardieBacker in the WET areas of the shower as the main goal. If the screws are low, they probably don't have much holding power and new screws should be driven nearby. Redgard says to use modified. And any other material listed as being in compliance with ANSI A118. If so, apply another skim coat and then the membrane and then skim coat over the entire membrane with a wet mortar mix. I'd like to know if I need to use "unmodified" or "modified" thinset mortar. This has a stronger bond with a surface coated with Redgard compared to premixed thinset mortar. My experience is with Kerdi Redguard isn't Ditra, they want you to use a good quality modified thinset over it. Waterproof showers are the trend today, so RedGard is an excellent alternative to cement boards that act as vapor barriers. However, RedGard should not be used over drywall in shower areas per the technical data sheet. 2x6's should give you adequate support. Corners: For inside and outside corners, used pre-formed RedGard Fabric Membrane corners. Re: Schluter vs. Should I go over the Redgard with skim coat of (modified) thinset, or any other ideas? Thanks in advance. If you have a piece of porcelain over Kerdi, the thinset is sandwiched between 2 fairly impermeable layers. Thanks guys for your quick responses! My question is, Do I need to apply adhesive mesh tape, thinset, then redgard to the corners/seams or can I just apply mesh tape and then redgard over it? Not trying to cut corners, but I'm also not looking to create extra work for myself that won't result in a better WRB. Without proper installation, Like Ditra, it’s thinset-applied, fiber-reinforced, and has a grid pattern (all of which this article got wrong). Backer board is just there for rigidity for the tile and grout to limit the cracking over time. _____ CX Y'ALL NEW I would be more concerned about using the right kind of thinset than the color. I believe I am at the stage where I will be applying Redgard to the walls to create a waterproof membrane. Does this sound right? It is also important to consider the product description listed on your RedGard Tub where it explains areas RedGard and drywall can be used together, such as dry, exposed surfaces that are clean from contaminants that could I will be using 8 x12 tiles on Durock walls coated with Redgard. By Many users appreciate its lightweight design and the ability to use modified thinset. So you can just imagine how long a 12x24" porcelain tile keeps the thinset damp over Ditra or Kerdi. No need for the 1/4" plywood. Great to know, thank you. This is I've researched the topic of whether it's possible to paint over Redgard, and the answer is yes. DO NOT use a premixed thinset mortar—it will not stick to RedGard. 00 3/8 roller - (3 pack for 7. The redguard peeled off pretty easy in places, especially over the spots that had thinset over them (the seams were taped and set in thinset and the screws were smoothed over with thinset). 47 Mesh tape - $8. Even if it did work, it would not be up to current codes anyway. I'd use mesh tape and thinset on those joints, then Redgard over that. Redgard is a good product, but probably not necessary on a subfloor. Must say on the bag that it meets ANSI A118. In some cases, Redgard can be painted over to match the surrounding walls or to Stir RedGard every 15-20 minutes to prevent settling on the bottom of cans before applying. I'm assuming that you have constructed the rest of the shower properly. You can use one to work the DITRA When defining the Mapei thinset mortar, we mentioned that it covers twice the area typical thinset mortars do. [Archive] Thinset Over Regular Drywall Screw Heads Tile Forum/Advice Board Ceramic Tile Advice Forums - John Bridge Ceramic Tile It would be preferable if I could just Redgard over the screws, they are set flush and there is really no room for Thinset on top. I have to use their epoxy thinset to set the base tiles, curb tiles and the side tiles of the pan. I was considering buying Mapei Ultraflex 1 with polymer or Ulltraflex LFT with polymer. Overall, when installing tiles over Redgard-coated cement board, it is important to follow the manufacturer’s instructions and use high-quality materials. What Is A If you mix your thinset a little on the dry side, skinning over will likely occur before you can set the tile. Now I'm wondering if Kathy has an update on how the seams are holding up. There's no vapor barrier behind the CPU, no. I know Ditra has by far the most data/testing. If you want your adhesive to stick to Redgard, you should get a powdered type and mix it with water. Only where greenboard meets greenboard (out of, and far away from the shower) did I use joint compound. By taking the time to properly install and seal the tiles, you can ensure that your finished product will be both beautiful and long-lasting. If you plan on tiling over drywall in a shower, install a roll on membrane first. 65 Labor - let's There are exceptions, however. Product If you have already put the hardi up over the felt, just tape and mud it with thinset and you'll be fine. In this case, you'll find that CBP recommends a modified thinset mortar for use in bonding tile to the RedGard. Just give you mortar time to dry. 10: 1 Gallon (3. If you touch the After lots of research we decided to use Redgard over Wonderboard cement board for the very large shower we built. Note that the integrity of the primer you use will dictate whether or not the paint will stick to regard. Anyone know? Powdered, unmodified thinset mortar will stick to RedGard waterproofing membrane and securely fuse your tile in place. Skip to main content. Unfortunately, no stores in my area carry high end unmodified "Jurassic" thinset in stock except for home depot. Joint compound is reactivated when it absorbs water and can cause problems like mold and blistering or delamination of paint film. As you know, unmodified is recommended over Ditra, even when installing porcelain. 173 and followed their instructions, laying down 3/4″ OSB down and are trying to lay Ditra over it. But this kind of thinset or grout is harder to clean away if allowed to dry too much. Pack You can use any good modified thinset over redgard. Modified thinset (Versabond rocks!) had no problem Okay, so skim flush with the tile redi lip with regular thinset, then redgard over the skim coat/tile redi seam, then attach tiles over the joint with the laticrete 300. Modified thinset can take a few days to dry under those conditions. The thinset works because you fill the inverted divots which locks them in place. Welcome to John Bridge / Tile Your World, the friendliest DIY Forum on the I need to know if I still need to treat the corners and seams with mesh tape and thinset prior to waterproofing the corners. Materials for tape and bonding have very little importance. :smile: It seems the no no's with RedGard are Some of the MR boards have a bit of a coating on the surface that could affect the bond of your thinset mortar. ) On top of Ditra, you would use Butt-join two Kerdi sheets together, apply some thinset over the butted area, and layer with the Kerdi band waterproofing strips. We’ll talk about RedGard’s applicability and whether it should be used over Kerdi seams today. Thanks in advance _____ Can I paint on top of RedGard? You can apply thinset over the RedGard and prime and paint over that. Joint compound is reactivated when it absorbs water and can cause That includes Redgard. Unmodified thinset does not need to dry to reach full strength. Wetter dry pack won’t work well, but you can skim over the top of it with some thinset to smooth it out. Apply RedGard waterproofing membrane over the seam or crack. 10400 Pioneer Boulevard, Unit 3 Santa Fe Springs, CA 90670 They could cause issues but you can paint over those corners with redgard over the membrane to ensure they are waterproof. If water penetrates through the grout and thinset, it may be stopped by the membrane. Do you know if you can apply redgard over thinset? I would like to use as extra waterproofing. Skip to content. Everything is perfect. Final verdict: Can I paint over Redgard? If you have been wondering In this section, we will discuss how to use Redgard correctly, so that you can be sure you are using it safely and correctly. 10400 Pioneer Boulevard, Unit 3 Santa Fe Springs, CA 90670 They did have liquid Flex Seal and I was wondering can you tile over liquid Flex seal or will the thin set not adhere to it. RedGard as IAPMO Pan Liner meeting ANSI A118. Gisele, Normally one would either trowel thinset onto the joint - embedding it into the crack, then apply the alkali mesh tape - squishing it into the thinset then, using a 4 or 5 inch putty knife, apply additional thinset over the tape and then remove the excess - attempting to leave as small a We are considering painting over Redgard in a bathroom. as a waterproof membrane. You might want to fill over the heads of the low screws with thinset. You will note that all manufacturers of direct bonded waterproofing membranes (your RedGard) Now, I'm wondering if I'm planning the correct technique for setting the tile over the RedGard. It is also important to consider the product description listed on your RedGard Tub where it explains areas RedGard and drywall can be used together, such as dry, exposed surfaces that are clean from contaminants that could prevent a good bond. Can I tile directly over RedGard? In that Regard, Ditra seems to have the upper hand over RedGard. Substrate is 1/2″ hardibacker and tile will be a standard white subway with grey grout. Advice is all over the road and spans for years where things have changed over time. Clean the panels; Apply the Mapei Granirapid® If you mix your thinset a little on the dry side, skinning over will likely occur before you can set the tile. Generally it is the layer prior to thinset/tile. Redgard actually says it's acceptable to use a modified thinset on it. They describe it as providing isolation, uncoupling, and waterproofing, and say it meets "A118. I believe for the walls I need to go over all the junctions and transition with thinset, apply tape and then more thinset and smooth it all out before using RedGard for final waterproofing. Custom recommends a modified thinset over their membrane. Second, I will apply RedGard on the shower walls and left over from the shower on the tub surrounding walls Third, I'll check what kind of "tile adhesive" I Fabric Membrane to size ahead of mixing adhesive mortar (thinset) for installation. If the materials forming the corner can flex independently, adding this flexible seam tape is not the best answer. 1st I used MBP, then redcoat. At a minimum, I'd use it at the floor to wall junctions, and around the niche. This makes okay sense to me, Do I need to apply a liquid waterproofing layer (redgard) on the cement boards before laying down the tiles with thinset? I would think that makes sense since ovbiously the Can I tile directly over redguard? For tile installations bonding directly to the substrate; strongly recommended to apply at least one full coat of “undiluted” RedGard® to the Apply Redgard with a roller or paint brush. I plan to RedGard the screw heads. Sort by Oldest first Oldest first Newest first Most reactions. I’ve installed a handful of showers. Use a powdered thinset mortar you mix yourself. 5-2 hrs or until it turns red. Before applying Redgard, it is Gisele, Normally one would either trowel thinset onto the joint - embedding it into the crack, then apply the alkali mesh tape - squishing it into the thinset then, using a 4 or 5 inch putty knife, For tile backer boards such as Durock, Wonderboard, Hardiebacker, Permabase, and others the seams between the board need to be treated with 2-inch alkali-resistant mesh RedGard® Waterproofing and Crack Prevention Membrane / TDS-104 RedGard® Waterproofing and Crack Prevention Membrane Published Date: August 4, 2021 1. _____ Redgard on mortar pan? Tile Forum/Advice Board Welcome to John Bridge 7. The article says Yes, you can paint over Redgard! If you’re wondering whether it’s possible to apply a fresh coat of paint on top of Redgard, the answer is a resounding yes. Tape and thinset is terrible as the amount of thinset causes a small ridge which may effect tiling, especially smaller This will be the LAST experiment I do with RedGard for all the doubters out there that it's waterproof. Let dry. I did wet the hardi down with water multiple times before thinset on the second try. Make the corners solid first. Are the other products greatly inferior in my situation (floor over basement concrete slab)? I like that the Redgard says you can use modified mortar to adhere the tile to the membrane while Ditra says unmodified. If you haven't gotten that far yet, and you go the hardi and redgard route, be He said the cement does not need to be coated in red guard because the PVC liner is there. I'm tempted to use unmodified thinset so that it can dry without air. If you don't have it, you should look into getting the reinforcing fabric to use at the junctions. Apply your tiles or other wall coverings within 72 hours or protect the dry Redgard. Apply Redgard with a roller or paint brush. I tried laying tile over hardi and redgard, and tile on redgard on drywall. Mix in a clean bucket at low speed RedGard Uncoupling Mat’s bonding layers have reinforced fleece which locks mortar into the mat,ensuring strong, reliable installations. Cure at least 48 full hours before water testing! This is key to ensure proper adhesion and setup. Apply Redgard over the tape. I had no Meaning the tile was well bonded to the RedGard by the thinset and the RedGard was bonded to the Wonderboard well enough that I had to patch the CBU, rewaterproof before installing the new tile. You're good. If you touch the OK, doing my Emily Litella impression, "Nevermind". If the corner is done right and if the RedGard is applied properly, it should stay waterproof. Definitely going to If you mix your thinset a little on the dry side, skinning over will likely occur before you can set the tile. This makes okay sense to me, provided the redgard will stick to the tile redi lip a bit. chandler48. Then I installed the Kerdi "waterproof" membrane and corners and Kerdi-band strips, all according to their instructions, using DitraSet (unmodified thinset mortar). I've replaced the tub, and I'll be tiling the walls, backed with Durock cement board. There are differences, and I don't know enough to describe them. Redguard - thinset? Most products will work as advertised as long as you follow mfg's instructions. Membrane systems are the best, no doubt, but RedGard is a rubbery like product that will stretch and compress with the movement in a shower. You can paint over Redgard when the need arises. 43202 posts Hardie is saying to use modified thinset for joints and tile. Well, in this case, the ordinary thinset mortar referred to is Tiling over Redgard. Thinset doesn't stick to Ditra, so, I'd wonder if the RedGard or Hydroban liquids will very well, either. The RedGard product coverage chart does show that one gallon will cover 55 sq ft. Can I tile directly over redguard? For tile installations bonding directly to the substrate; strongly recommended to apply at least one full coat of “undiluted” RedGard® to the “dry” primed area and allow to dry completely before tile installation work is to begin. I use cement board + redguard and I need to know what thinset to use over that for large tiles. geniescience. Never heard of using both the Oatey pan liner and the redgard over the final mud bed. (13 M 2) Chart for estimating purposes. 1/4 inch Hardiebacker would be installed over the wet, second coat of RedGard. What is Thinset? Thinset, also known as thinset mortar or dryset mortar, is an adhesive material used to install tiles on floors, walls, and countertops. I refuse to try and convince anyone after this, use y Back to the comparison, I chose GoBoard over Kerdi simply because I didn't want to bother with using both modified and unmodified thinset. Add 6" waterproofing membrane fabric along seams. This can help you determine when it’s safe to begin installing your tile. If you'll read the instructions online for the RedGard, you'll find that a modified thinset mortar (ANSI A118. 15 standards based on application If you have a piece of porcelain over Kerdi, the thinset is sandwiched between 2 fairly impermeable layers. I have painted redgard on the shower walls and I am ready to tile. I've painted plenty before so redgard seems straightforward but the details I put the thinset on first between drywall cement joint. As you can see, all other membranes say modified is OK. 98 Total - $244. use continuous window flashing all the way around that would extend from the inside of the flange and behind the hardieback about 4 inches up the studs/blocking 5. The other commenter describes this well, but As expected, they didn't do a preslope. The thinset won't bond to the silicone, but if the area is small enough, it may not matter, so long as the thinset over the silicone bonds well to other surrounding material. Once the tile is grouted, I imagine it could stay damp for months. Therefore, it’s necessary for you to RedGard over Durock. The color will turn from pink to a solid red sheet with no pink spots RedGard/Aqua defense - Cement board - $74. Some pictures would be helpful. Save Share Reply Quote Like. Rather than cement board or Ditra, how about liquid RedGard over a plywood subfloor before tiling? I understand the pros and cons of cement board and Ditra, but have never used RedGard. Then I thinset tiles. You want to make the Everwhere hardi is concerned, I taped with a proper hardi-tape and thinset. Thanks, Ceci . Therefore, A perfect example of an underlayment membrane that can be used to install tiles over cement board is RedGard or Custom Building Product’s Wonderboard. Everwhere hardi is concerned, I taped with a proper hardi-tape and thinset. I'm and idiot and paranoid that I might mix up the two. Rather than using a chemical process to cure it air dries like glue. Yes, type 1 mastic may be water-resistant and the back of the bucket may say The wife comes home just after I finish waterproofing the Hardieboard tub surround and decides that a solid surface surround is the way to go after all. Once the cracks are sealed with alkaline resistant tape and thinset, the RedGard is just a precautionary product which works well in those situations. Gray Premium Crack Prevention Thinset Mortar FB50 on Page 2. leave 1/8 inch gap and mesh tape and thinset the gap and then redgard over the seam 3. 2. All you have to do is gather the needed tools, apply your primer and then paint. Note that Redgard is a popular waterproofing membrane used in construction and renovation projects. The ceramic tile job is about done. (Think of how they spray new concrete to keep it damp while it cures over the course of days. rstnlvinqkemnjwergziybdffwjjzdbwahcahukfyvffpwlmtbwfy