I ripped my old shower down to the studs and joists. I think our shower tile guy made this base too thick. The top shower pan floor covering is the tile. beyond and around rough jambs at the opening and at least 2 in. A fully waterproof assembly is easily achieved by sealing seams and fastener penetrations with KERDI-BAND. 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.
common sense would dictate that the same minimum 1/4-in-12 slope is critical to keep bulk water moving. Why did US v. Assange skip the court of appeal? Does the 500-table limit still apply to the latest version of Cassandra? What differentiates living as mere roommates from living in a marriage-like relationship? Mix and place the first mortar layer. 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. The dimensions will be about 40" x 10' (mud shower pan over entire area). The system can also be customized with floor heating cables to create a warm, luxurious tile floor. Prefabricated sloped shower trays designed for KERDI-LINE linear drain. All trays feature integrated KERDI waterproofing and are available in several sizes to fit a variety of shower configurations. It only takes a minute to sign up. The tileable covering support is placed flush with the top of the bonding flange and can therefore accommodate any thickness tile covering. 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. 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. The best answers are voted up and rise to the top, Not the answer you're looking for? Layers of a shower pan. Resting above the waterproof membrane is a second bed of mortar that generally follows the same contours as the preslope. Your email address will not be published. 2. The entire room will be wrapped in Kerdi; walls, floor, ceiling Should I apply waterproofer on the subfloor beneath a shower pan? With the trowel, taper down the mortar to the shower drain. 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. Waterproofing strip: Schluter-KERDI-BAND, 6. In most cases, the job is easier with the help of an assistant. Litigation and Insurance Claims Investigation Services. Contact us: 888-472-4588
What were the most popular text editors for MS-DOS in the 1980s? Uncoupling membrane for DITRA-HEAT-E-HK electric floor heating cables, Uncoupling membrane with integrated sound control and thermal break. 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. CTRL + SPACE for auto-complete. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. You can also use a membrane system, which come in a variety of formats and are either self-adhering or meant to be installed with thinset mortar over the top of the concrete slab. 75mm) up to 75 mil (1. Different options and thicknesses of DITRA membrane are available to best suit the needs of your project. The KERDI-SHOWER-TT prefabricated sloped shower trays eliminate the need for a mortar bed which ultimately reduces the weight and installation time. Are there any canonical examples of the Prime Directive being broken that aren't shown on screen? above the finished threshold. 4. 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. 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. The subbase must slope 1/4 in. What risks are you taking when "signing in with Google"? It also prompts the verification of solid blocking in the walls surrounding the shower for backing and attaching the liner. 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. 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. A secondary drain, mounted on the waterproof pan under the showers finished floor, drains this water away. DITRA-HEAT-DUO features an integrated bonding fleece that provides sound control, as well as a thermal break. 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. If the liner doesnt leak for the 15-minute duration of the test, it passes. Learn more about Stack Overflow the company, and our products. 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. 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. Your email address will not be published. We are putting in a shower in our bathroom remodel. While the latter do not require any special considerations since the panels and pan are installed straight on top of the subfloor and drywall, custom-build walk-in showers require physically challenging preparatory steps in order to get the floor ready for the shower itself. On what basis are pardoning decisions made by presidents or governors when exercising their pardoning power? 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. While the KERDI membrane is used in the image above, note that KERDI-BOARD multifunctional building panels are also suitable. 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. Build a high border around the perimeter of the shower, about 1/4-inch below the tile top perimeter line. Cut two-by-six lumber to fit between the studs of the shower stall. Has the Melford Hall manuscript poem "Whoso terms love a fire" been attributed to any poetDonne, Roe, or other? If the shower pan is done properly, I shouldn't expect water to get into the subfloor. otherwise I'd be in big trouble (even if it was treated). DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. They can easily be cut to size with a utility knife, or may be extended with dry-pack mortar. Remove the subfloor material. Measure the shower area to determine the size of the shower pan you need to make. 2 inches of shower pan is not excessive if its an old school dry pack with a Pre slope. I'm going to be using the Kerdi shower pan and membrane to seal a steam shower. The first and most popular because of its affordability and ease of installation is paint-on latex waterproofing. The studs were rotten, the subfloor was rotten, and the top of the joists (in some places) were weak and rotten. Note: While the image below shows a wood subfloor, this is also achievable with a concrete subfloor. If working with a wood subfloor, you can build up the rest of the subfloor 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. Tim Anderson has been freelance writing since 2007. 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. Determine whether the floor needs to be leveled and mark the floor at the low spots. Is there any way to alleviate the movement from the hangers? Is it safe to publish research papers in cooperation with Russian academics? For a seat designed for sitting, that hazard could be argued as bather beware if he chooses to stand on it. Though you can make your own shower pan, our experts say this project is best left to professionals and experienced tile setters. 3. Before the liner is installed, a solid subbase must be installed to create a smooth and uniform slope to the drain. KERDI is specifically designed as a waterproofing membrane to be used in conjunction with ceramic and stone tile coverings. Free Tile and Stone Installation Guidelines, Why is the Wood Grain Finish on my Glazed Porcelain Tile Coming, Tile Installer Thin-set Standards (ITS) Verification Course. Use the scrap piece of two-by-four and level to continually check the tapered slope. 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. 1. Install the shower wall tile backer board and place the top mortar bed. 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. 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. Start your subscription today and save up to 70%. However, if you hear the term shower base, that is the portion that sits below the tray/pan. Three sides of the shower pan are bounded by shower walls. Counting and finding real solutions of an equation. The first step is to determine the depth of the shower pan. Use either Quikrete Floor Mud or Quikrete Sand/Topping Mix for the job. Stand in the base or pan to determine if the subfloor is stable. VASPKIT and SeeK-path recommend different paths. DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. I plan on replacing some studs and sistering others. 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. Made of polyethylene, DITRA also serves as a waterproofing layer that protects moisture-sensitive substrates, such as plywood/OSB. This is especially true when remodeling at an existing subfloor. Use a reciprocating saw to cut the wood, and pull out any nails securing the material with a hammer or pry bar. Shower bases must be sloped from all directions to point drains, therefore limiting tile selection to mosaics or other relatively small-format tiles. 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. 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). Toe-screw 2x4s for straight curbs and cut off the excess hardboard after forming. DITRA is a polyethylene membrane with a grid structure of square cavities, each cut back in a dovetail configuration, and an anchoring fleece laminated to the underside. The issue is that the previous subfloor was 1/2" ply over joists 17 1/2" OC - by my research, not enough support. What do I do about the Missing Stair Nosing and Short Stair Tread. Test fit shower pan drain housing into subfloor bore hole. To learn more, see our tips on writing great answers. Frame the shower curb. 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. If you were going to tile the rest of the room, I'd consider adding another sheet of ply, at least 3/8" thick (the thinnest suitable to a second layer with tile) under the whole floor. Press the material firmly into the silicone on the shower drain. The entire shower will be done with Kerdi. above the finished threshold, whether its at the floor level or on a raised curb. Then you have to waterproof the pre-sloped mortar bed with either a liquid applied membrane or a sheet membrane. Install the plywood or cement board on the subfloor using nails or screws. Use only a little bit of water at a time to maintain a stiff, peanut butter-like consistency. 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. The KERDI-SHOWER-TT shower trays feature integrated KERDI waterproofing and are designed to integrate with the KERDI-DRAIN. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 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. Seal the shower liner to the shower drain. The thickness of the subfloor for a shower pan depends on several factors, including the specific requirements of your local building code as well as the finished floor material you will be using. But you did not actually answer his question. The liner is a PVC or other polymer membrane that rests on top of the preslope. This provides the bonding element for the concrete and gives it something to hold onto. Become a member and get unlimited site access, including the Oatey's shower pan liners are offered with either CPE (CPE pan liners are recommended if your floor has a radiant heat system) or PVC sheet material at 30 mil. or 40 mil.
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