Thinset mortar is a type of cement used for the adherence of tiles and flooring to substrate, or subfloor materials. It is also heatproof, so it won't lose its grip in hot environments. Thinset works well over cement/fiber board as well as actual cement. In this article I will show you how easy it is to mix thin set when following just a few simple steps. For best results, especially on floors, concrete board should be installed at least one day prior to installing tile. Insert coarse-thread, corrosion-resistant screws through the backer board and into the plywood with a power drill and a Phillips-head screwdriver bit. Thinset mortar is a cement-based product that is used to install ceramic and natural stone tiles. Install the First Sheet. Thanks. Thinset mortar is made of cement, aggregates, additives and water. Once the cement backer board is installed, fastened and taped properly, use the following procedure; Dampen the board with a damp sponge to clean the surface and to minimize the absorption rate of the cement backer board for a brief period. Let the seams and screw depressions dry overnight. Gallon, white, thin set mortar, this no-mix, no mess alternative to traditional thin-set mortars, spreads quickly & easily, bonds porcelain, stone, marble, granite & ceramic tile up to 18" x 18", 45 x 45cm, for interior wall & floor installations, protected with moldgard technology to resist mold & mildew growth, exceeds ansi A136.1, type I. Recommended to bond porcelain, stone, marble, granite and ceramic or porcelain tile up to 8 in. Traditional versions are cement-based powders that are mixed with water prior to application. If the cement board manufacturer recommends a polymer-modified mortar, … john brown December 10, 2014 at 3:35 pm. I used Custom Building Products Standard Thin-Set Mortar which is zero-VOC (and mildewcide-free). Plan accordingly by mixing small batches as you need them instead of one large batch at the beginning of the job. Tile installation requires grooves in the thinset to create air pockets which facilitate the adhesion of the tile. DEGREE OF DIFFICULTY: Thinset is a great waterproof adhesive. Non-Toxic Thin-Set Mortar. Cement-based backer board stabilizes the plywood substrate and provides a flat, even surface for tile. In addition to holding a degree in paralegal studies, she has more than 10 years of experience renovating newer homes and restoring historic property. (20 x 20 cm). If you don't, then you could have problems. Arrange the seams between backer board sheets away from the seams in the plywood, and stagger each row of backer board from the last. Tape all seams the same way. Backer board:For backer board on floors, specifically cement board and fiber cement boards (think Hardibacker), it’s my understanding that it doesn’t matter which thinset you use. thanks. If you follow these steps you will have perfect thin set every single time. Lay alkali-resistant, fiberglass mesh tape on the thinset and cut the end of the tape with a utility knife. In hot weather, mist the back side of the backer board sheets with water before pressing them against the thinset to prevent the thinset from drying too fast. Apply another layer of thinset over the first, using the square-notched edge of the trowel. SimpleSet pre-mixed thin-set mortar is a no-mix, no-mess alternative to traditional thin-set mortars. Smooth and easy to spread premixed adhesive. For interior use only. Sometimes there might be another additive in the blend to increase strength. If two people are installing the backer board, you can mix larger batches of thinset. Plot the layout of concrete backer board on the plywood. x 8 in. Use a paint-mixing paddle fastened to a power drill to mix large batches easier. They skipped putting down the thin set under the cement board even though the installation instruction specify that it is required. Compare Click to add item "TEC® Ultimate Premixed Mortar 130 ... Click to add item "TEC® Sturdi Flex™ Thin Set Mortar 345/346 - 50 lb" to the compare list. … Tile is NOT Waterproof. Tile requires a structurally-sound, sturdy foundation, and plywood alone is unsuitable. Thinset Decoded: A buyers guide to purchasing the right tile adhesive, More tips for installing wood look tile flooring, American National Standards Specifications for the Installation of Ceramic Tile, Exterior tile installation over occupied space, Schluter now has its own line of thinset mortars, Why Schluter Ditra is so cool: Uncoupling membranes explained, 5 Ways to Screw Up your Cement Board Installation on Floors, Part 1 Thinset Decoded: A buyers guide to purchasing the right tile adhesive, Thinset Decoded: A buyers guide to purchasing the right tile adhesive, Avoid These 3 DIY Tile Installation Products, Wood plank tile floors: What you need to know, https://www.diytileguy.com/shower-waterproofing/, https://www.jameshardie.com/products/hardiebacker-cement-board?loc=refresh&loc=refresh#getstarted, Self-Leveling Underlayment: The Ultimate Guide. I assume that using some sort of modified thinset is the answer, but which brand? Suitable substrates: gypsum wallboard (dry walls only), cement board, exterior-grade plywood (interior only), concrete and masonry block. It dries slower, which allows you to readjust any issues as needed while it’s drying. That’s because they needed to make sure that the cement had enough moisture to fully cure. 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. While there is an average curing time for thinset mortars and grouts, a few external factors can affect the drying time. This no-mix, no mess alternative to traditional thin-set mortars spreads quickly and easily Bonds porcelain, stone, marble, granite and ceramic Tile up to 18" x 18" (45cm x 45cm) For interior wall and floor installations Protected by Moldguard technology to resist mold and mildew growth Exceeds ANSI A136.1 Type I Tub Gray Quart Part of a new program of pre-mixed tile setting products (38 cm), but dry time significantly increases. It is more expensive than dry powder, but unless the area to be covered is very large the convenience is usually worth the cost. When it comes to installing the cement backer board, you will want to use thinset mortar. It is what makes it possible for tile or stone to stick or bond to the backer board. The thinset mortar includes cement, a water-retaining agent as well as sand. Mixing thin set can really be a hassle if you don't have the right tools and the right knowledge to get the job done. Draw the blade of a utility knife along the marks to score the boards, then snap the boards at the scores to break them. When I asked the contractor, he asked his flooring guy who had been doing tile for 25 years and "never puts thinset under cement board". The thinset is the glue that causes the tiles to adhere to the backer board or the other underlying surface that you’re using. Add the vapor barrier. Recommended to bond porcelain, stone, marble, granite and ceramic or porcelain tile up to 8 in. Thinset is your go-to tile mortar for most indoor and outdoor applications. Thinset tile mortar has a smooth, slippery consistency, similar to mud. You can also apply it over waterproofing membranes. What Is Modified Vs. Carole Oldroyd, a writer based in East Tennessee, has authored numerous DIY home improvement, Human Resources, HR and Law articles. Measure and mark any backer board sheets that require cuts to fit into the layout with a pencil or marker. When in doubt, install another layer of plywood to beef up the substrate before installing the backer board. SimpleSet pre-mixed thin-set mortar is a no-mix, no-mess alternative to traditional thin-set mortars. For use on shower floors and walls. There are two basic types of thinset mortar: premixed and dry powder. Log in. (38 cm), but dry time significantly increases. The dry mix (where you add the water on-site) does. Mold and mildew-resistant. The thinset doesn’t need to bond to the plywood. Your email address will not be published. Scoop up thinset on the flat edge of a 1/4-inch, square-notched trowel and spread the thinset across the plywood. On walls and countertops, you can install backer board with corrosion-resistant nails. Back in the 1940s, people used 2-3 inches of thinset beneath their tile. Spread thinset over a seam between backer board sheets with the short, flat edge of the trowel. Drag the trowel across the plywood to create uniform ridges through the thinset. Keep a 1/8-inch expansion gap along the seams between sheets and around the perimeter of the installation. from instructions: Apply a supporting bed of mortar or modified thinset to subfloor using a 1/4” square-notched trowel. Apply another layer of thinset over the seams and screw depressions, and blend the material out in all directions with the trowel. Reply. The nails or screws hold it down and the thinset holds it up. Waterproof the walls. Cement board, backer board, thinset mortar, tile, grout and sealers … A common misconception about tile and grout is that they are waterproof. Tighten screws evenly to ensure a flat, even backer board installation. Can be used with tile with one side up to 15 in. © Copyright 2020 Hearst Communications, Inc. There are a variety of LATICRETE products that can be used to install the tile or stone. It had a light “wet concrete odor” when wet but it is safe once dry. Click to add item "TEC® Ultimate Premixed Mortar 130 - 10.5 oz" to the compare list. Anyone can enjoy the benefits of a cement board shower system if you follow these 3 easy steps. Thin-set is the bonding layer that goes down under your tiles. Place the first sheet over the mortar bed. The four corners between four backer board sheets shouldn’t meet at any place throughout the installation. This gives the thinset time to harden, which reduces the chance of loosened tile and grout. According to the TCNA, dry-set mortar is Portland cement mixed with sand and additives that impart water-retentivity, and … Tiling With Thinset Thinset represents a modern alternative to the traditional mortar bed. Take thinset, for instance. Not Staggering the Seams. Powered cutting tools are not advisable for cutting cementitious backer board, as they produce fine-particle cement dust. Modified thinset to lay down the thin set glue the installation instruction specify that it required... 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