subfloor thickness for shower pan

Using Tile To Create a Custom Shower Floor in Your Bathroom. While the 1955 code permitted site-built pans only in special cases where the installation of a premade pan was demonstrably impractical, such pans are now common and have their own provision in section P2709 of the IRc. Raising the Bathroom Floor | Schluter We benefit by helping you find what your looking for and are paid a small amount when a purchase is made on a sellers website we link out to. The nominal 5/16 (8mm) thickness minimizes tile assembly thickness. Did the drapes in old theatres actually say "ASBESTOS" on them? I think our shower tile guy made this base too thick. Waterproofing corners Schluter-KERDI-KERECK, 1. Multifunctional building panels: Schluter-KERDI-BOARD, 4. Aim for a height of about 1-1/2 inches on the border. Frame out shower stall area to shower pan dimensions. Whatever the drains shape and location, the sloped subbase is critical to moving bulk water from the shower floor, and the sneaky water that gets through it, toward the drain. >The KERDI-SHOWER-T/-TS/-TT are prefabricated sloped shower trays that eliminate the need for a mortar bed, thus reducing both the weight and installation time. See Recessing the Shower Floor Technical detail here. Field-fabricated shower pans (or receptors, as the code refers to them) have been acknowledged by plumbing codes at least as far back as the 1955 Uniform Plumbing code. Water that gets into the mortar bed won't be able to drain out. The base of a DIY shower pan needs to be about 2 to 3 inches thick at the edges before the tile is added. Uncoupling and waterproofing membrane: Schluter-DITRA, 5. Built in place from various parts and pieces, site-built shower pans allow for an endless variety of shower-floor arrangements, including curbless, roll-in showers. If you are worried about it and need to use 1/2" sheathing for other reasons then just install 2x blocking perpendicular to the joist at a shorter distance on center, say 8"-12" O.C. It only takes a minute to sign up. The code offers a number of choices for this application, from the time-tested but relatively outdated use of lead sheets and hot-mopped layers of asphalt felt to the common plastic liners used today. common sense would dictate that the same minimum 1/4-in-12 slope is critical to keep bulk water moving. The shower pan preslope is a mortar base that creates the general tapered slope for the shower pan. Bonded waterproofing and vapor-retardant membrane, Waterproof, multifunctional tile substrate and building panel. Save my name, email, and website in this browser for the next time I comment. 2023 The Taunton Press, Inc. All rights reserved. If you use the DITRA and cover the seems that should be waterproof so there really should not be moisture getting to the subfloor. Test fit shower pan drain housing into subfloor bore hole. How to Install a Shower or Tub Faucet. Actually will be basically a fully tiled wet room. Alternatively, you can choose to install a cement backer board as your subfloor or as an addition for support and structure. thickness, and include a range of dimensions such as: 5 ft. x 6 ft. 6 ft. x 33 ft. 5 ft. x 40 ft. 4 ft. x 50 ft. 5 ft. x 50 ft. 6 ft. x 50 ft. Can I set a shower-pan bed and install tile in one day? | Mapei For a better experience, please enable JavaScript in your browser before proceeding. Although curbless showers that were originally meant for handicap showers has become more popular and more in demand. beyond and around rough jambs at the opening and at least 2 in. The issue is that the previous subfloor was 1/2" ply over joists 17 1/2" OC - by my research, not enough support. Should I redo this wall to avoid a mold sandwich? After 5 minutes, try to separate the seam. 9 Common Subfloor Mistakesand How to Avoid Them, Mortared Shower Pan Install on Wood Subfloor, How to Prepare a Floor for a Walk-in Shower, A subfloor will add extra stability and structure to your shower area floor, Plywood is an easily accessible material, cut it to the shower area floor size, and install using non-moisture corrosive screws, Cement Backerboard needs to be installed with a light coat of tile adhesive to secure it to the floor and also eliminate any voids, Make sure to use as few material pieces as possible, avoid multiple pieces since this will allow the floor to flex. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. KERDI-BAND is a waterproofing strip used to seal all KERDI-BOARD butt joints, screw penetrations, and the connection between the KERDI-BOARD panels on the walls with the KERDI membrane laminated to the shower tray. Can I do the typical 16"o.c. Sealing/Waterproofing between shower flange and hardiebacker, Short story about swapping bodies as a job; the person who hires the main character misuses his body. Remove any residual mortar by hand or with the trowel. It only takes a minute to sign up. If it comes apart, repeat the process. How thick should the Mortar Bed for a Shower Pan Floor in a Shower? A standard material used for a subfloor is going to be a cut to size plywood, mainly due to its availability. Market Research for Exporting to the U.S. Catalina 2021 Ceramic and Stone Tile Market Report, Kitchen and Bath Cabinets Countertops Reports. It also prompts the verification of solid blocking in the walls surrounding the shower for backing and attaching the liner. The KERDI-SHOWER-LT accommodates the KERDI-LINE drain at intermediate locations and is also offered in a selection of sizes with thicknesses ranging from 1-1/4" (32 mm) to 1-7/16 (36 mm). Free-space on the underside of the matting provides a route for excess moisture and vapor to prevent damage to the tile layer above. Different options and thicknesses of DITRA membrane are available to best suit the needs of your project. Free-space on the underside of the matting provides a route for excess moisture and vapor to prevent damage to the tile layer above. To learn more, see our tips on writing great answers. Afterwards, a shower pan liner is installed on top of the slope bed, flattened and stretched tight across the shower pan and stapled into place roughly 6 inches up the wall studs. When choosing your subfloor material, take into consideration how the thickness will effect the overall heigh of the built up shower pan in relation to your shower curb. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Asking for help, clarification, or responding to other answers. After the drain is set into the shower floor, measure the height from the subfloor to the top edge of the drain, deducting the thickness of the mortar bond coat and tile being installed. Most homes will consist of a standard subfloor constructed of running boards laid over floor joists, a plywood layer over the running boards, or if on a first floor, the subfloor can be a concrete slab. DITRA-HEAT features a thickness of 1/4" (5.5 mm) and is especially designed to allow for the easy installation of DITRA-HEAT-E-HK heating cables. 2. Prefabricated shower tray: Schluter-KERDI-SHOWER-T/-TS/-TT, 3. The dimensions will be about 40" x 10' (mud shower pan over entire area). 3. The downside of these finishes is that they arent themselves waterproof. in the area of concern. The drain must be sealed so the pan can be filled with water to a depth of at least 2 in., measured at the threshold. Ideally you would need to cut single, large pieces and screw them into the running boards or concrete slab. A piece of plywood can be purchased in 1/2 or 3/4 thickness, and most cement backer boards will be 1/4, 1/2, or 5/8 thick. Tim Anderson has been freelance writing since 2007. The grate assembly accommodates a wide range of tile thicknesses and allows lateral and tilt adjustment as well. The KERDI-SHOWER-TT prefabricated sloped shower trays eliminate the need for a mortar bed which ultimately reduces the weight and installation time. Learn more about the essentials of waterproofing. Thin-pour shower pan - JLC-Online Forums Write CSS OR LESS and hit save. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Use tape and plastic to cover up the shower drain so that the mortar and other debris will not clog it. Should I apply waterproofer on the subfloor beneath a shower pan? After you have put down a double layer of plywood to provide the base for a custom walk-in shower pan, you need to cover the subfloor with a layer of tar paper, in this case referred to as a vapor barrier or a moisture barrier. Though you can make your own shower pan, our experts say this project is best left to professionals and experienced tile setters. He spent more than 15 years as a third-generation tile and stone contractor before transitioning into freelance writing. We gather the best information, organize it, and make it available to you according to the current stage of your remodeling project. rev2023.4.21.43403. In most cases, the job is easier with the help of an assistant. Get home building tips, offers, and expert advice in your inbox. Bathroom Subfloor Thickness | DIY Home Improvement Forum Remove any residual mortar by hand or with the trowel . Kerdi Shower Tray ST Subfloor Requirements Asking for help, clarification, or responding to other answers. Required fields are marked *. The subbase must slope 1/4 in. Install KERDI-LINE adjacent to the wall, or at intermediate locations of your shower floorand then choose the drain grate that best matches your dcor and desired finished look. This must be tight to the floor & walls, and be continuous; the corners can't have any holes, the curb can't have any holes. A recessed shower floor allows for the installation of a sloped mortar bed or a prefabricated shower tray that is flush with the rest of the bathroom floor. 2) The pre-slope under the pan liner channels any water that gets through the tile and grout into the weep holes in the drain assembly. Donato Pompo, CTC CMR CSI CDT MBA, is the leading tile and stone forensic expert and consultant in North America, and he is a National Tile Contractors Association Recognized Consultant. DO NOT NAIL OR SCREW ANYTHING INTO THE PAN. This liner is the last line of defense between water and the subfloor. Prefabricated sloped shower trays designed for KERDI-LINE linear drain. Otherwise, you must install sister joints before . If a plywood subfloor already exists, it may be redundant to add to the subfloor, which would only be increasing the height and add minimal support and structure. Mix a batch of skimming mortar in a bucket or mixing tub, using fresh water and a wooden trowel. We also smartly list products and services to help in moving your project along. Shower pan over 2nd story wood subfloor install - JLC Online Mark a piece of 1-by-4 pine or fir as a leveling rod for the mortar, using the 3-foot level. Acrylic shower pans are the least expensive type of pan and can last for about 10 years before there could be a crack or leak. Let this mortar bed dry for at least 24 hours. The first layer of deck mud does not have to be precise; it merely needs to provide enough slope from the outside edges of the shower to the actual drain for the pan liner to slope to. Actually will be basically a fully tiled wet room. Build a high border around the perimeter of the shower, about 1/4-inch below the tile top perimeter line. You can also use the two-by-four as a screed to smooth down the mortar. One side will be resting on a wall, the other side the joists will be hung using strong-ties or the like. Rip the siding to 3-1/2 inches and screw it to the backside of the blocks for curved curbs. Multifunctional building panels: Schluter-KERDI-BOARD, 4. If total energies differ across different software, how do I decide which software to use? Uncoupling membrane for DITRA-HEAT-E-HK electric floor heating cables, Uncoupling membrane with integrated sound control and thermal break. 9mm . With KERDI-BOARD, you can build custom vanities, shelving units, bathtub surrounds, free-standing partition walls, kitchen islands, and so much more. The trays can easily be cut to size with a utility knife, or they may be extended with dry-pack mortar. Cut notches into the floor joists to the permitted depth using a reciprocating saw, if no reinforcement is needed according to building code or plans. How to Build a Shower Pan - cabindiy.com The hyperbolic space is a conformally compact Einstein manifold. Is there any way to alleviate the movement from the hangers? With the utility knife, create slits for the four bolts on the shower drain to protrude upward. How to Replace a Rotten Floor Under a Shower - SFGATE The system can also be customized with floor heating cables to create a warm, luxurious tile floor. Why did US v. Assange skip the court of appeal? Building a custom DIY shower pan from tile in a mortar bed can help you create the perfect floor for your shower that's both beautiful and waterproof. Mix it thoroughly with the trowel to remove any clumps. Depending on the size of the shower it doesn't always work, but it saves time if you can work it out that way. JavaScript is disabled. If it leaks, it fails. Hardwood Flooring. I plan on replacing some studs and sistering others. CTRL + SPACE for auto-complete. What is this brick with a round back and a stud on the side used for? Counting and finding real solutions of an equation. ANSWER - First of all, the way you construct a shower pan is to first apply a pre-sloped mortar bed to establish a slope to the drain of 1/4" per foot. And if the pan isnt properly sloped to carry water to the drain, water standing in the pan can become a petri dish of bacteria and possibly a slipping hazard. Spread out thinset with the notched trowel and press the tile into the thinset. The lower area of the shower walls should be open, with no cement boards in place yet. When choosing your subfloor material, take into consideration how the thickness will effect the overall heigh of the built up shower pan in relation to your shower curb. 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