Theoretically, if I turn the plywood panel upside down, the upper layer of thinset and the tile will fall to the floor. All the thin-sets come in either white or gray as indicated on the bag. ANSWER – Porcelain Tile should be installed with a latex modified thin-set or a polymer modified thin-set. Since DITRA is impervious, it does not deprive the mortar of its moisture. If you have a bench installed, cover it completely to vapor-proof it. I know that Schluter recommends unmodified thinset mortar, but my supplier suggests that the large and heavy tiles will be easier to install with a polymer-modified no-sag mortar. 11 is used. Unmodified vs modified. Workability. In general, we don't recommend the use of modified thin-set mortar to set tile over the membranes because … Please do not hesitate to ask me any further questions, and I hope if this has assisted you. ↩ Roger. My fireplace is a Superior brand, model number b1038. Schluter ALL-SET Thinset is a specialized modified thin-set mortar engineered for use both under and over all DITRA and KERDI products. However, unmodified thinset should be used between the membrane and the tile. Can be used for large format tile and stone (15-in and greater) when … This allows the cement to properly hydrate, resulting in a strong, dense bond coat. Discussion Starter • #1 • 6 mo ago. Can be mixed with MAPEI's Polymer Additive (instead of water) for enhanced performance, and for setting a wider range of tile and stone over additional substrates . Do you really have a 67 shelby? Mix with water - no additive required. However, over concrete Schluter recommends an unmodified thinset mortar like the Ditra-Set shown here. If I use modified thinset will the narrow grout joints affect the cure? 11. It’s a very small shower area, 30×60. Schluter All-Set Workability. In general, unmodified thin-set mortar is a blend of Portland cement, sand, and water retention agents that is mixed with water by the user. This is for setting tile on top of Schluter products. Unmodified thinset mortar; For interior and exterior applications; For use with Schluter-DITRA uncoupling membrane and Schluter-KERDI waterproofing membrane; Bostik Ditra-Set is composed of select, proprietary chemicals, carefully graded aggregates and purified cements. When it comes to modified or unmodified thinset, there are different grades that you need to take into account. 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 … Suggestions on … ALL-SET will likely be our thin-set of choice when using Schluter systems. Is un-modifies thinset more difficult to use than modified? A quality unmodified thinset should be used and mixed with a latex additive. Redguard isn't Ditra, they want you to use a good quality modified thinset over it. i've used it under hardi and ditra with zero issues. Schluter recommends a premium unmodified thinset under the tile, and neither of those is a premium grade. unmodified is a void filler and customblend is a cheap way to go about it. Tile. Hi Vy, You need to use thinset mortar to bond the … For example, to set DITRA over plywood or OSB, a modified thin-set mortar meeting the requirements of ANSI A118. If I find myself needing to tile over anything … So in your case, use modified under the Ditra to bond it to the subfloor, and use unmodified on top of the Ditra to set the tile. All of the Schluter-Systems thin-set mortars, modified varieties can be used to set tile over Schluter DITRA, DITRA-HEAT, KERDI, and KERDI-BOARD products. The Custom Marble Granite Mortar I believe is a polymer modified thin-set. 11 is used. My question is should I use a glass thin set on the pan and a different modified thin set on the walls. But Redguard doesn't offer anywhere the uncoupling as does Ditra. The issue, as I understand it, is that unmodified thinset cures by hydration where modified thinset dries in the presence of air. 1. Canada; United States of America; Share … Unmodified thin-set mortar may also be referred to as dry-set mortar by the manufacturer. Click to see full answer. The felt backing anchors onto a layer of thinset mortar applied to the subfloor, and the dimples on the top hold another layer of thinset for adhering the tiles. 11 is used. Here’s the basic rundown of how to use DITRA for ceramic or porcelain tile: 16 inch on-center joist … Which thinset to use with porcelain tile? Uncoupling membranes are designed for use over concrete subfloors. I am a new home owner and I have been waiting forever to be able to just do whatever I want in my own home. 4 Posts . Posted on February 19, 2021 by February 19, 2021 by … Since Schlutter systems act as … After … as for as people who hate customblend. This was likely all installed in the early 80s. My plan had been to replace the fiberboard with 1/2 ply, and then do a ditra installation (1/4" modified thinset, ditra, 1/4" unmodified thinset) for some 12"x12" porcelain tiles (3/8" thick). Use as a medium-bed or thin-set mortar for installing tile and select natural stone on floors and walls. You can do … It is important to use a very good quality polymer modified thinset to install the ditra on the sub floor. In the case of modified thinset, the percentage of the retention product added into the mix is also a telling factor for quality. Unmodified thin-set mortar meeting the requirements of ANSI A118.1 is required for applications over concrete, mortar beds and the KERDI bonded Thinset Decoded: Which is the best thinset to use for Ditra, Kerdi, porcelain tile, floors, large tile, wood look tile, and showers. Grasshoppa. Modified or Unmodified Thinset: Key Characteristics to Keep in Mind. Is one better … i think most tile guys would use modified but either one would work. So whatever the installation instructions are for the heating under the tile, simply substitute ‘uncoupling mat’ into the instructions wherever it says tile. Because that’s friggin’ NICE! the versabond is also a strong cheap modified thinset that again i and others i know of have had zero issue with. Kerdi-Band is a waterproofing strip for sealing butt joints and … Image Credit: Home Depot The leading brand uncoupling membrane is Schluter … Natural stone, ceramic, porcelain, and … I also will be tiling the bathroom floor with a 6×24 porcelain over Shuluter-Ditra. To set DITRA over concrete or gypsum, Schluter-Systems recommends an unmodified thin-set mortar meeting the requirements of ANSI A118. Primarily because it can be used under and over DITRA, DITRA-HEAT and KERDI-BOARD. Read more Read less. Hello everyone! Bostik Ditra-Set™ Portland cement thin set large and heavy tile mortar for Schluter ®-Ditra ® and Schluter ®-Kerdi ® uncoupling and waterproofing membranes provides outstanding workability, excellent durability, significant leveling characteristics, and superior bond strengths in interior and exterior applications. Foxtail brush; Utility knife; Chalk line; 1/8″ notched trowel; Flat trowel; Grout float; Buckets (for … It provides outstanding workability, excellent durability, significant leveling characteristics and superior bond strengths in … You're not trying to have a thick layer, just enough that you'll have maximum bond to the thinset … i used. For instance, to install DITRA over plywood, a modified thinset mortar should be used. Thanks. What is your opinion on using modified thinset in this application? Step 2: Know Joist Spacing . The ditra handbook says to use unmodified thinset to bond the tile to the ditra because it chemically cures. Schluter SET is a premium unmodified thin-set mortar approved to set tile, including porcelain tile, over Schluter boards and membranes. I’m feeling a little confused. Unmodified thin-set mortar is recommended to set ceramic and … I started this endeavor with tiling my basement bathroom, just in case I screwed it up it would not put anyone out. The ditra to tile bond is with unmodified thinset and is "mechanical only". ↩ vy. Furthermore, what type of thinset should be used with RedGard? notch trowel. Know the joist spacing of your home before installing DITRA. Which, it sounds like I might need 3 different thin sets, if the glass & subways need different thin set. i promise you if it was $30 a bag rather than $5 some of those guys would like it more and talk about how easy it is to work … These grades or levels are dictated by the ratio of cement to sand used in the mix. … Please … In respect to this, does Thinset adhere to RedGard? For example, to set DITRA over plywood or OSB, a modified thin-set mortar meeting the requirements of ANSI A118. joist spacing. Use Thinset With a Higher Latex Content Higher latex content is essential for bonding to plywood. For the Ditra, you can bond it to the subfloor with a modified thinset and set tile on it with an unmodified thinset. All Schluter-Systems thin-set mortars modified varieties can be used to set tile over Schluter DITRA, DITRA-HEAT, KERDI, and KERDI-BOARD products. Q: What is the difference between modified and unmodified thinset, and in what … For example, porcelain, which has … Portland cement-based unmodified thin-set mortars are dependent on the presence of moisture for hydration in order to gain strength. One example would be to use Laticrete's 317 thinset mixed with Laticrete 333 liquid latex additive. No products in the basket. Remember to always consult and adhere to the latest installation instructions and product recommendations for your specific brand and type of membrane. Please note that there are currently a few companies that have tested and will offer a warranty on their brand of modified thinset when used between Prodeso and tile. Use a multi-purpose modified thin set under the Ditra. First time using this membrane, do i have to lay down morter under the membrane or can i just lay the membrane flat on concrete? For use with uncoupling membranes. Look for this standard on the packaging (e.g., product meets ANSI A118.1 when mixed with water). Uncoupling membrane is a waterproof material used under floor tile. I am installing wood like porcelain tile over a wood substrate. The heat cable was put down and the flooring guy installed unmodified thinset from mapei (kerabond) over the ditra and cable before starting the ceramic. Geographic availability. As you know, unmodified is recommended over Ditra, even when installing porcelain. Similarly, what mortar do you use for Schluter? IME. There was also a metal ember strip under this board. How to install Schluter Ditra on plywood sub floor. FAST-SET is a special modified thin-set for setting both Schluter products and tile. Plus, when you use an … 1. I use Versa Bond (Home Depot). Sag-resistant, smooth, and creamy; Easy to handle and spread; Applications. Then skim coat the back of each tile with the flat side of the trowel. An unmodified thin-set is again used to hold it in place. I puch down on the thinset over the round in the ditra and the thinset is caving in at mostly every round but over the … Again, I've tiled over Ditra with modified thinsets, but I'd not recommend doing that with large format. Can you use unmodified thinset on […] The problem I have is that the unmodified thinset fails to completely adhere the Schlutter to the substrate (I usually install cement board under KERDI or Ditra). When it comes to thinset, choosing between modified or unmodified thinset can leave many tile installers scratching their heads. The appropriate product standard for unmodified thin-set mortars is ANSI A118.1. . Therefore, while the bond to a tile is less strong than that when you might use a modified, that bond is made under ideal conditions (the water is trapped, and can allow the cement curing to complete growing the crystals that actually create the bond to their maximum capability) and the thinset and tile can move without putting any stress on the tile-thinset bond. To set DITRA over concrete or gypsum, Schluter-Systems recommends an unmodified thin-set mortar meeting the requirements of ANSI A118. Uncategorized removing thinset from osb. Unmodified Thin-set; KERDI-FIX; Caulking Gun; 1/2″ Drill (for mixing thin-set) QEP Super Grout Mixer (for mixing thin-set) Rubber Grout Float; Five Gallon Bucket; Nitrile Gloves; Add Tip Ask Question Comment Download. Rub across the layers to remove any air pockets under the membrane. For larger tiles 12×12 or larger should use a 1/4″ sq. It as been 48 hours since the thinset was installed and i notice this morning when i was walking on it that there was cracking sound. Schluter SET is an unmodified thin-set. I use Versa Bond on top, too, but Schluter won't sanction it. Also, I really just don’t like consistency or adhesion of unmodified thinset. Kerdi-DS, TruGard, and RedGard are examples of trusted vapor-proofing materials you can buy. They want you to use … The type of thin-set mortar (modified vs. unmodified) used to install DITRA depends on the substrate. The short answer is that it’s an underlayment used under tile and stone flooring to "decouple" the ceramic tiles from the subflooring, ... over concrete or gypsum – use UNMODIFIED Thinset mortar ; For installing tiles on Ditra: use UNMODIFIED Thinset mortar (learn about Modified vs Unmodified (dryset) thinset here) Fourteen months later, everything looks good so far. 11-27-2006, 08:52 PM. Sag-resistant, smooth, and creamy; Easy to handle and spread; Schluter All-Set … For example, to set DITRA over plywood or OSB, a modified thin-set mortar meeting the requirements of ANSI A118. Not all tiles are suitable for steam showers. Theoretically? To set DITRA over concrete or gypsum, Schluter-Systems recommends an unmodified thin-set mortar meeting the requirements of ANSI A118. Dampen the … DITRA is approved for use with ceramic, porcelain, and natural stone tile. One tilesetter friend of mine says modified thinset works just fine, it just takes longer to set up. I hope to use the allset thin set there, if I can find it locally. I would comb the thinset over the Ditra, making sure to fill all of the cavities with thinset first with the flat side of the trowel. on porcelain i would burn the thinset onto the back of the tile to make sure you get good adhesion.
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