By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 1/2" is a bit thin to span that distance, although it should not be a problem with a concrete slab above it. KERDI-DRAIN features an integrated bonding flange to which the KERDI waterproofing membrane is adhered and forms a waterproof connection at the top of the tile assembly. For professionals it looks easy, but only. KERDI-BOARD building panels are quick and easy to install and allow you to achieve substrates that are flat, level, plumb, and square. 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. Allow the mortar to cure overnight and proceed to the next step. If the liner doesnt leak for the 15-minute duration of the test, it passes. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Waterproof, multifunctional tile substrate and building panel. Step 1: Reinforce the shower pan. 9mm . Different options and thicknesses of DITRA membrane are available to best suit the needs of your project. For hardwood finish flooring, which average about 3/8-inch to 3/4-inch in thickness, 1/2-inch to 3/4-inch-thick plywood is the preferred subfloor, though there are a variety of . 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. Various sizes are available to accommodate both center drain and perimeter drain placement. Because of this, hand-fabricating shower pans can increase the chance of failure, and code provisions generally address two hazards: leaks and sanitation. If necessary, lift the pan or base out of the way and install additional deck screws or level a low spot. 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. I ripped my old shower down to the studs and joists. 3 Shower-Pan Choices for a Solid Tile Floor Installation, Video Series: Tile a Barrier-Free Bathroom. 3. 2. 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). I plan on replacing some studs and sistering others. Alternatively, add small amounts of mortar to fill the low spot and repeat the process. Once the moisture barrier is in place, a layer of wire mesh or chicken wire is put down and stapled to the subfloor. The system can also be customized with floor heating cables to create a warm, luxurious tile floor. The finished floors of showers can slope up to 1/2-in- 12; anything steeper could be a slip hazard. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. 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. Measuring it at that point. How do you expect to prevent steam from getting everywhere? DITRA has a nominal 1/8" (3 mm)-thickness which minimizes tile assembly thickness. Frame out shower stall area to shower pan dimensions. Code requires that lining materials in field-built shower pans slope 1/4 in. Counting and finding real solutions of an equation. See Recessing the Shower Floor Technical detail here. Allow mortar to cure overnight before installing the base or pan. Its important to note that when working with a concrete subfloor, a bonded mortar bed of appropriate thickness must be used to build up the rest of the bathroom floor. Prefabricated sloped shower tray: Schluter-KERDI-SHOWER-LTS, 3. See technical detail for how. 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. Waterproofing Corners: Schluter-KERDI-KERECK, 1. We are putting in a shower in our bathroom remodel. It is going to be 4 tall or so from the bathroom floor. Build a high border around the perimeter of the shower, about 1/4-inch below the tile top perimeter line. Remove the top section of the shower drain by unscrewing or unbolting it. I understand the process of installing the membrane, deck and preparing the wall and ceiling substrate. Use tape and plastic to cover up the shower drain so that the mortar and other debris will not clog it. Use tile spacers to maintain proper distance between tiles. Waterproofing membrane and vapor retarder: Schluter-KERDI, 4. How thick should the Mortar Bed for a Shower Pan Floor in a Shower? Quikrete makes two products that work well when building DIY shower pans. Note: While the image below shows a concrete subfloor, this is also achievable with a wood subfloor. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Alternative, proprietary products are also popular and can be approved locally. 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). Which was the first Sci-Fi story to predict obnoxious "robo calls"? 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. 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. How to install a shower pan drain with this non-standard drainage pipe? He studied architecture at Taft Junior College. Place the level across the pan or base to determine if it is level both ways. 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. Johnathan C. Brewer II is a licensed general contractor specializing in kitchen, bath remodels, and general constructionwith two decades of professional experience. 3. Ideally you would need to cut single, large pieces and screw them into the running boards or concrete slab. for 2x6 joists w/ a 40" span under the shower pan? Sign up to our newsletter and get exclusive deals you wont find anywhere else straight to your inbox! Depending on the subfloor material, you will need to ensure it is sturdy enough to support the weight of a built up shower pan. All trays feature integrated KERDI waterproofing and are available in several sizes to fit a variety of shower configurations. Send us an email: , Using a Prefabricated Shower Tray and Ramp, 1. Multifunctional building panels: Schluter-KERDI-BOARD, 2. DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. Water that gets into the mortar bed won't be able to drain out. Stand in the base or pan to determine if the subfloor is stable. Use mortar between OSB and old concrete subfloor, in shower? Yes, it is important to lay subfloor down before installing a shower pan in the bathroom. While cement backer boards are moisture-resistant, they are not waterproof. Apply some mixed mortar at the marked area of a low spot on the subfloor. It's about how it looks and how it feels underfoot. 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. The Fora platform includes forum software by XenForo. Curbs must be at least 2 in. Get complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine. 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. Free-space on the underside of the matting provides a route for excess moisture and vapor to prevent damage to the tile layer above. Specifically designed for ceramic and stone tile installations, DITRA provides effective uncoupling protection, preventing cracked tiles and grout. If needed, cut any finishing pieces to size in order to complete the subfloor installation. First, am I correct in determining 1/2" as not enough support ? Cut the piece to length with a handsaw. A standard material used for a subfloor is going to be a cut to size plywood, mainly due to its availability. They might begin to flex a bit, which may need a fix. DITRA has a nominal 1/8" (3 mm)-thickness which minimizes tile assembly thickness. The KERDI-SHOWER-LTS is a prefabricated shower tray designed to accommodate the KERDI-LINE linear drain along the perimeter of the shower. The subfloor needs to be a minimum of two layers of 3/4-inch exterior grade plywood before you can move to actually putting down the concrete layer of deck mud that provides the slope and the. A secondary drain, mounted on the waterproof pan under the showers finished floor, drains this water away. Making statements based on opinion; back them up with references or personal experience. What positional accuracy (ie, arc seconds) is necessary to view Saturn, Uranus, beyond? However, shower bases can be sloped on a single plane to a linear drain, enabling the use of attractive large-format tiles. Rip the siding to 3-1/2 inches and screw it to the backside of the blocks for curved curbs. 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. KERDI-BOARD can be installed both vertically and horizontally using the screws and washers in our hardware assortment. Designed to accommodate the KERDI-DRAIN point drain, the KERDI-SHOWER-T/-TS/-TT shower tray can be installed over a recessed subfloor to create an even transition from the floor tile right into the shower. Modern shower styles use offset drains or linear drains for a sleek look that keeps the drain out from underfoot when showering. The preslope is laid on tar paper. 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. The hyperbolic space is a conformally compact Einstein manifold, Counting and finding real solutions of an equation. Start your subscription today and save up to 70%. Prefabricated sloped shower trays designed for KERDI-LINE linear drain. The first step in a site-built shower pan installation and the first signal to the inspector of whats to comeis the two-part drain assembly. If it leaks, it fails. 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. Generally speaking, the subfloor should be a minimum of -inch thick for any wet application. KERDI is specifically designed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. The lower area of the shower walls should be open, with no cement boards in place yet. 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-DRAIN grates are available in four stylish designs and multiple finishes. 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. Waterproofing corners Schluter-KERDI-KERECK, 1. The dimensions will be about 40" x 10' (mud shower pan over entire area). Similar to the lower mortar layer that you created earlier, mix the mortar in the mixing tray, then dump it onto the floor of the shower. Once it dries, it creates a waterproof barrier over which you can install the tile. * Recessing the floor of a shower must be done in a way that preserves the structural integrity and safety of the construction.