subfloor thickness for shower pan

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. What is the final thickness of a DIY shower pan? Learn more about Stack Overflow the company, and our products. The entire room will be wrapped in Kerdi; walls, floor, ceiling Should I apply waterproofer on the subfloor beneath a shower pan? A subfloor is the layer at the very bottom of your shower pan. Blocking allows you to run the waterproofing material up the sides of the shower, which creates the DIY shower pan liner. In the mixing tray, mix the mortar with water, using a garden hoe. This is especially true when remodeling at an existing subfloor. 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. 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. Premanufactured panels and pans as walk-in showers can be installed directly over the top of the concrete without any concern. It only takes a minute to sign up. This is a dialog window which overlays the main content of the page. Second, since the surrounding framing and drain pipe are in place assuming a 1/2" subfloor, is my only recourse going to be to cut the base plates, take a 1/4" off the wall studs and extend the drain pipe ? 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. Which language's style guidelines should be used when writing code that is supposed to be called from another language? Like all drains, the intent is for bulk water to drain through the visible drain opening. Made of soft polyethylene and featuring an anchoring fleece on both sides, KERDI is easily anchored to the substrate using thin-set mortar. 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.). DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. To do this, add a quart of water to the bucket or tub and pour in some of the dry mortar. Mark a piece of 1-by-4 pine or fir as a leveling rod for the mortar, using the 3-foot level. Get your 2 x 4 (which is actually 3 1/2 x 1 1/2 - economy I guess) and set it on top of your drain (Figure 1). 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. All trays feature integrated KERDI waterproofing and are available in several sizes to fit a variety of shower configurations. The studs were rotten, the subfloor was rotten, and the top of the joists (in some places) were weak and rotten. See Recessing the Shower Floor Technical detail here. tar command with and without --absolute-names option, Embedded hyperlinks in a thesis or research paper. This includes mud-floated showers. Are there any canonical examples of the Prime Directive being broken that aren't shown on screen? 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 provides the bonding element for the concrete and gives it something to hold onto. We are putting in a shower in our bathroom remodel. Install the Subfloor. * Recessing the floor of a shower must be done in a way that preserves the structural integrity and safety of the construction. Would I be better w/ 12" o.c. How to Build Shower Pans (DIY) | Family Handyman Specifically designed for ceramic and stone tile installations, the family of DITRA products provides effective uncoupling protection, preventing cracked tiles and grout. Place a 3-foot level on the floor facing from right to left, and again facing from front to back at the area of the pan. 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). Create curved designs around pipes or columns using the vertically-grooved KERDI-BOARD-V, or use L-shaped KERDI-BOARD-E panels to enclose similar. Floating Tile Floors: Basics and Availability, How to Install Floor Cement Board Underlayment for Tile, Prefabricated Stall vs. Tiled Shower: Product Comparison Guide. Are you implying you would use pressure treated wood in the subfloor and not redgard it? 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. KERDI-DRAIN grates are available in four stylish designs and multiple finishes. What positional accuracy (ie, arc seconds) is necessary to view Saturn, Uranus, beyond? Hammer down any protruding nails used to fasten the subfloor to the floor joists below. The first and most popular because of its affordability and ease of installation is paint-on latex waterproofing. Site-Built Shower Pans - Fine Homebuilding Concrete Shower Floor (Pros and Cons & Design Guide) Waterproof, multifunctional tile substrate and building panel. Frame out shower stall area to shower pan dimensions. DITRA performs all these functions while still providing adequate support/load distribution for the tile covering. While cement backer boards are moisture-resistant, they are not waterproof. Make sure the shower pan is aligned . However, shower bases can be sloped on a single plane to a linear drain, enabling the use of attractive large-format tiles. Alternative, proprietary products are also popular and can be approved locally. Apply some mixed mortar at the marked area of a low spot on the subfloor. How to Install a Shower or Tub Faucet. The dimensions will be about 40" x 10' (mud shower pan over entire area). Build a high border around the perimeter of the shower, about 1/4-inch below the tile top perimeter line. Let the tile fully cure. The lower area of the shower walls should be open, with no cement boards in place yet. 1. With the trowel, taper down the mortar to the shower drain. If needed, cut any finishing pieces to size in order to complete the subfloor installation. A surprise to many, this means the blocking and studs may need to be shaved down by the thickness of the liner material to accommodate it. With the trowel, taper down the mortar to the shower drain. 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. 2. Increasing subfloor thickness under new shower pan, Installing ceramic tile on top of wooden bathroom floor. How thick should the Mortar Bed for a Shower Pan Floor in a Shower? 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. Remove any dampness or debris on the . We have to step up to go in shower!!! Using KERDI-BOARD to build walls over stud framing in wet areas is an efficient alternative to using gypsum board. It is where visible water will escape and limit the rise of water up the walls. Mark the top of the coat hanger and withdraw it. or 40 mil. 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. Designed specifically for ceramic tile and dimension stone installations, DITRA serves as an uncoupling layer, waterproofing membrane, and vapor management layer that accommodates moisture from beneath the tile covering.

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