subfloor thickness for shower pan

KERDI-LINE is an elegant, low profile linear floor drain specifically designed for bonded waterproofing assemblies. To learn more, see our tips on writing great answers. This video shows you one way to set the. 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. The top shower pan floor covering is the tile. If your shower is not a square, and they rarely are, you still need to have the same thickness at the walls all the way around the perimeter. In 35 years, he's gained expertise in all phases of residential construction, retrofit and remodeling. This can be concrete or closed cell foam. Remove the top section of the shower drain by unscrewing or unbolting it. The entire shower will be done with Kerdi. CTRL + SPACE for auto-complete. Kerdi shower pan in a shower with 2 drains, How do I deal with 3" subfloor overhang and extreme joist notch, Medium term repair for cracked shower pan. Add mortar or small amounts of water, as necessary, so the batch is the consistency of moist mashed potatoes. Walk-in showers are large showers that can either be created from scratch or built using premanufactured pans and wall panels sold as kits. With the KERDI-SHOWER-TT thin shower tray on a wood subfloor, you can build up the rest of the bathroom floor by installing either a 5/8" or 3/4" plywood/OSB panel on top of the wood subfloor along with DITRA or another Schluter-Systems uncoupling membrane. Become a member and get unlimited site access, including the Use tape and plastic to cover up the shower drain so that the mortar and other debris will not clog it. Waterproofing corners Schluter-KERDI-KERECK, 1. Rip the siding to 3-1/2 inches and screw it to the backside of the blocks for curved curbs. 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. KERDI is specifically designed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. Make sure the shower pan is aligned . Using Tile To Create a Custom Shower Floor in Your Bathroom. Check the subfloor area from left to right and from front to back to make sure it's level. Send us an email: , Using a Prefabricated Shower Tray and Ramp, 1. Cut two-by-six lumber to fit between the studs of the shower stall. These instructions assume you are building a shower pan on plywood subflooring, but if you are building a DIY shower pan on concrete slab, you will need to consider a riser kit. KERDI-SHOWER-TT features a thin perimeter height (29/32" [23 mm] - 1-1/32" [26 mm]) that simplifies curbless shower construction. Tiling Project Guide. Did the drapes in old theatres actually say "ASBESTOS" on them? To learn more, see our tips on writing great answers. Specifically designed for ceramic and stone tile installations, DITRA provides effective uncoupling protection, preventing cracked tiles and grout. 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. I think The Evil Greebo does bring up a good point, because this is a steam shower I would be even more concerned about mold developing in this humid environment. Your email address will not be published. Different options and thicknesses of DITRA membrane are available to best suit the needs of your project. If you cannot or do not wish to recess the floor or use a ramp, the use of additional materials to raise the bathroom floor is another option. Donato is the founder of CTaSC. Contact us: 888-472-4588 Bases come in a variety of materials, from acrylic, molded stone, and fiberglass. Synopsis: Code expert Glenn Mathewson explains the details required by code and modern plumbing standards when fabricating a shower pan, including the two-part drain assembly, the subbase material and slope, the curb height, and the liner application. Further, DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. The trays can easily be cut to size with a utility knife, or they may be extended with dry-pack mortar. Apply some mixed mortar at the marked area of a low spot on the subfloor. I am putting in a whole new floor, joist and all, and the span is the 40". For curbless showers without such a dam, the floor-level threshold at the opening serves the same purpose. Align the longer edge of the sheet at one side of the . The first and most popular because of its affordability and ease of installation is paint-on latex waterproofing. This includes mud-floated showers. 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. The curb is between two inches and six inches above the level of the shower drain. Install a pre-slope. Hold the 1-by-4 rod on edge against the surface of the subfloor and move it across the surface of the mortar in a sawing motion. Step 1: Reinforce the shower pan. Where theres no curb at the threshold, as in a curbless design, a temporary curb must be constructed for the leak test. Made of polyethylene, DITRA also serves as a waterproofing layer that protects moisture-sensitive substrates, such as plywood/OSB. Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? A major perk of site-built shower pans is that they allow the installation of custom tile, stone, or other aggregate floor surfaces. If you're creating a custom walk-in shower, you must put down a layer of what is known as the deck mud, which is a 2- to 3-inch thick layer of concrete. Stand in the base or pan to determine if the subfloor is stable. Different options and thicknesses of DITRA membrane are available to best suit the needs of your project. Waterproofing strip: Schluter-KERDI-BAND, 5. In order to add support and reinforce the subfloor structure, you can add a secondary layer that the built up shower pan will sit on top of. The classically-inspired KERDI-DRAIN is offered in a variety of grate finishes and accommodates a wide range of tile thicknesses. In order to pull this off I would need to add joists that line up with the dimensions of the shower. What were the most popular text editors for MS-DOS in the 1980s? Free-space on the underside of the matting provides a route for excess moisture and vapor to prevent damage to the tile layer above. Generic Doubly-Linked-Lists C implementation. 1/2" is a bit thin to span that distance, although it should not be a problem with a concrete slab above it. See Recessing the Shower Floor Technical detail here. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The flange is a 1/8" thick, 5" high FRP composite MATERIAL that is designed to rise between the stud wall and the showers backer wall. Not out of concern for spilled water but because it's a steam shower, so your overall bathroom is going to become a playground for mold. 2 and 3 outlets are available making it simple to connect to standard plumbing. per ft. toward the drain from all portions of the pan. If the liner doesnt leak for the 15-minute duration of the test, it passes. Over a concrete subfloor use a bonded mortar bed of appropriate thickness to build up the rest of the bathroom floor. DO NOT NAIL OR SCREW ANYTHING INTO THE PAN. Uncoupling and waterproofing membrane: Schluter-DITRA. Point drain with integrated bonding flange. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The primary objective is to support the weight of the built up shower pan and provide a durable subfloor in the event of the natural processes of home settling and seismic movements. Sign up to our newsletter and get exclusive deals you wont find anywhere else straight to your inbox! This is a dialog window which overlays the main content of the page. After the sloped subbase is in, the liner can be installed. JavaScript is disabled. Premanufactured panels and pans as walk-in showers can be installed directly over the top of the concrete without any concern. No I would not apply water proofer to the subfloor under the shower pan (unless we are going to be waterproofing the entire floor it might be easier to just continue it under the shower pan). Once it dries, it creates a waterproof barrier over which you can install the tile. Depending on the size of the shower it doesn't always work, but it saves time if you can work it out that way. You'll need various materials for a shower pan to build up several layers. There are many resources available regarding the techniques and skills required to assemble a quality site-built shower pan, but they often fall short in explaining the details required by modern plumbing standards. Generally speaking, the subfloor should be a minimum of -inch thick for any wet application. But a shower pan isn't just about function. DITRA-XL is 5/16 (7 mm)-thick and allows for ceramic tile application over single layer plywood/OSB subfloors on joists spaced at 24 (610 mm) o.c. Therein the new sheathing would not run under the wall and the wall would be now supported by the blocking. The tile is set in a thin bed of mortar or thinset. I'll be pouring a new concrete shower pan. The KERDI-SHOWER-TT shower trays feature integrated KERDI waterproofing and are designed to integrate with the KERDI-DRAIN. Do I need to apply a waterproofer such as Redgard to the subfloor ply before I apply the thinset to set the Kerdi shower pan? How do you expect to prevent steam from getting everywhere? While the KERDI-SHOWER-TT shower trays are specifically designed for curbless showers, the KERDI-SHOWER-T and KERDI-SHOWER-TS shower trays, which feature thicker heights (1-1/8" [29 mm] - 1-1/2" [38 mm]) can also be usedseveral options are available to best accommodate your project. Shower pan membrane typically comes in thicknesses from 30 mil (0. 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. We gather the best information, organize it, and make it available to you according to the current stage of your remodeling project. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! With the trowel, taper down the mortar to the shower drain. KERDI-BOARD, a multifunctional waterproof building panel, gives you more control over your tile installation project by providing you with the means to simply and easily create ideal substrates for tile. Making statements based on opinion; back them up with references or personal experience. We also smartly list products and services to help in moving your project along. This blocking or backing often isnt easily visible once the liner is installed. Uncoupling and waterproofing membrane: Schluter-DITRA, 4. DITRA-XL is 5/16 (7 mm)-thick and allows for ceramic tile application over single layer plywood/OSB subfloors on joists spaced at 24 (610 mm) o.c. To install the subfloor, whether it is the primary or secondary layer, you will need to accurately measure the length and width of your built up shower pan, also taking into consideration any non-square corners. His hobbies include horses, motorcycles, road racing and sport fishing. Hassle with 5/8" first layer, especially with OSB, is that it's very easy to strip the hole with the screw. Test fit shower pan drain housing into subfloor bore hole. in reply: 1) Lawrence Taylor - The subfloor is the first layer of plywood over the joists, which I lowerd about 1 1/2 inches by removing 2-by material that was put over these joints by the last guy who remodeled this bathroom. 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. What to use to flatten and prep wall before installing Schluter Kerdi membrane for tiling? common sense would dictate that the same minimum 1/4-in-12 slope is critical to keep bulk water moving. Increasing subfloor thickness under new shower pan, Installing ceramic tile on top of wooden bathroom floor. Otherwise, you must install sister joints before . This doubles as an anti-fracture membrane which is painted onto the surface of the concrete with a paintbrush or a paint roller. Has the cause of a rocket failure ever been mis-identified, such that another launch failed due to the same problem? Use the scrap piece of two-by-four and level to continually check the tapered slope. 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. The combination of these four essential functions allows for the successful installation of tile over a wide range of substrates, including plywood/ OSB, concrete, gypsum, heated floors, etc. Contact us: 888-472-4588 With the rest of the shower drain temporarily in place, draw a pencil or chalk line around the perimeter of the walls to add a reference line, which represents the top of the tile. Overlap the edges and roll them tightly. 399K views 1 year ago Dry Pack mortar or Deck Mud, as it is called in California, is an important step in the construction of a tile shower pan. 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. All shower trays feature integrated KERDI waterproofing and are designed specifically to integrate with the KERDI-DRAIN. New blog post from our CEO Prashanth: Community is the future of AI, Improving the copy in the close modal and post notices - 2023 edition. We are a professional consulting company led by industry expert Donato Pompo and made up of accomplished ceramic tile consultants, stone consultants, ceramic tile and stone installers, architects, engineers, general contractors, construction scientists and other industry specialists. 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. See Recessing the Shower Floor Technical detail here. What should I follow, if two altimeters show different altitudes? Should I use liquid water proofing membrane over a standard shower mud pan? 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. This secondary layer can be added on top of the running boards or concrete slab. Water that gets into the mortar bed won't be able to drain out. He spent more than 15 years as a third-generation tile and stone contractor before transitioning into freelance writing. The studs were rotten, the subfloor was rotten, and the top of the joists (in some places) were weak and rotten. in the area of concern. What do I do about the Missing Stair Nosing and Short Stair Tread. Before the liner is installed, a solid subbase must be installed to create a smooth and uniform slope to the drain. All trays feature integrated KERDI waterproofing and are available in several sizes to fit a variety of shower configurations. 3. Is there any way to alleviate the movement from the hangers? How thick should the Mortar Bed for a Shower Pan Floor in a Shower? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. We have to step up to go in shower!!! Remove any residual mortar by hand or with the trowel . Measure from the liner to the top of the 2 x 4. 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. Learn more about the essentials of waterproofing. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. This only applies to mud-floated showers. The grate assembly accommodates a wide range of tile thicknesses and allows lateral and tilt adjustment as well. Once the moisture barrier is in place, a layer of wire mesh or chicken wire is put down and stapled to the subfloor. What positional accuracy (ie, arc seconds) is necessary to view Saturn, Uranus, beyond? KERDI-BAND is only 4 one-thousands of an inch (4 mil)-thick, half the thickness of KERDI thus limiting buildup, and ensuring a smooth surface for tile installation.. Waterproofing strip seals abutting joints of membranes and building panels. Counting and finding real solutions of an equation. If the subfloor is not flat and level, apply a self-leveling compound following the . Fasten it down with roofing nails or staples. I'm going to be using the Kerdi shower pan and membrane to seal a steam shower. Would I be better w/ 12" o.c. This provides the bonding element for the concrete and gives it something to hold onto. What does "up to" mean in "is first up to launch"? Curbs must be at least 2 in. For a seat designed for sitting, that hazard could be argued as bather beware if he chooses to stand on it. The KERDI-SHOWER-T is offered in five sizes with perimeter heights ranging from 1-3/32" (28 mm) to 1-1/4" (32 mm). A typical walk-in shower built on the first floor of a home will be able to rest its weight on the joists without concern. This one starts at around 1 1/2 inch thick at the drain and should slope outwards 1/4 inch for every linear feet away from the drain. VASPKIT and SeeK-path recommend different paths. Which ability is most related to insanity: Wisdom, Charisma, Constitution, or Intelligence? With the KERDI-LINE linear drain, the floor is sloped on a single plane which allows the use of large-format tile. Make sure the surface is at a level. Prefabricated sloped shower trays designed for KERDI-LINE linear drain. Prefabricated sloped shower tray: Schluter-KERDI-SHOWER-LTS, 3. The system can also be customized with floor heating cables to create a warm, luxurious tile floor. We are putting in a shower in our bathroom remodel. Let the primer dry. If you're planning to install a shower base or manufactured shower pan on a subfloor, it's necessary to make sure the pan will be level and stable. KERDI is a pliable, sheet-applied, bonded waterproof membrane and vapor retarder that is fitted between the tile and tile substrate (gypsum, cement board, etc.).

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