During all of these years, industry experts have been innovating, developing and designing systems in close collaboration with the end-user, to meet the high expectations and requirements of customers and professionals alike, this in an ever evolving data and networking environment. We were going to replace the particle board with a 5/8 inch exterior grade plywood and then use the 1/8 inch Ditra. minimum subfloor thickness – 19/32", 5/8" nom. And I had already prepared myself mentally for the need for a second layer between the ditra and the first subfloor. minimum subfloor thickness – 19/32", 5/8" nom. 3. Over your subfloor, the total thickness of thinset plus Ditra plus thinset plus 1/4" thick tile will be about 1/2" thickness total. DITRA will forever change the way you lay tile. Each of these floors are currently linoleum. As far as I can tell, under the linoleum is some sort of particle board, and underneath that should be the bare floorboards. It’s a pretty cool system for DIYers or professionals. It also eliminates the need for a self-leveling compound which minimizes the assembly thickness and allows for quicker installation. 2. For example, to set DITRA over plywood or OSB, a modified thin-set mortar meeting the requirements of ANSI A118.11 is used. DITRA prevents tiles and grout from cracking because of it’s geometric configuration. Like; Save ; weedyacres. If the concrete is already flat, dry and crack-free, no other preparation may be needed. To set DITRA over concrete or gypsum, Schluter-Systems recommends an unmodified thin-set mortar meeting the requirements of ANSI A118. However, today’s lightweight construction methods can make the installation of hard surface coverings particularly challenging. Step 1: Planning DITRA-HEAT Heated Flooring Systems. Schluter Ditra MattingEach roll is 1 metre wide this matting is left over from a self build project that has now completed and so is surplus to requirements. I’m leaning towards the laticrete since it’s cheaper and I don’t know any better. All the specifics for DITRA installation are in the handbook or on Schluter’s site. For example, to set DITRA over plywood or OSB, a modified thin-set mortar meeting the requirements of ANSI A118.11 is used. Don't lay tiles on a concrete slab with cracks that appear to be spreading or irregularities that prevent you from leveling it. The Universal Underlayment for Ceramic and Stone Tile. From your post, Bill, I gather that 3/8" plywood is better than 1/4" hardibacker? Type, thickness, and format of the tile or stone surface covering must be suitable for the intended application. Will this be enough though? The Ditra handbook gives requirements for subfloor thickness and joist geometry. any leveling of the subfloor must be done It is recommeded to fill the square cavities with the smooth side of the trowel and to establish a regular pattern in the bonding adhesive with the notched side of the trowel in one application. IN GENERAL: ensure subfloor panels are level and properly fastened to the joists. 11 years ago. Ditra is about 1/8" thick. If using natural stone, you need more plywood. contain overlapping or conflicting requirements. CONTENTS 4 Floors, Interior – 16, 19.2, & 24-inch o.c. DITRA-HEAT is primarily intended to warm tile floors and make them more comfortable underfoot, ... overlapping or conflicting requirements. Additionally, what mortar do I use with Ditra? (16 mm) tongue-and-groove with 1/8" (3 mm) gap between sheets. The type of thin-set mortar used to install DITRA depends on the substrate material. While Ditra is my preferred membrane for floor tile installation (as well as countertops and tub decks) it absolutely needs to be installed correctly. For example, to set DITRA over plywood or OSB, a modified thin-set mortar meeting the requirements of ANSI A118.11 is used. schluter ditra matting waterproofing membrane 5.4m x 1m left over roll - new. This difference, Ditra fans would argue, makes it more resistant to movement. DITRA-HEAT uses the same technology and allows heating cables to be run in it’s stud structure. 6.1 Schlüter®-DITRA 25 Load transfer 2 ity or compliance with the general certificate of national technical approval (abP). Inspect the floor for protruding nails or screws (fix squeaks before installing any flooring). First things first, get the total square footage of your bathroom. Ditra-Heat provides uncoupling to neutralize shear stresses between the substrate and the tile covering to prevent cracked tile and grout. It seems like this will get me close to the 3/4” height requirement. Ask Question Asked 9 years, 4 months ago. Subfloor condition: The subfloor must be free of moisture damage, including rot and sponginess, and must be securely fastened to the joists and squeak-free. Underlayment methods for concrete subfloors typically include filling low areas with self-leveling compound and installing an uncoupling membrane (such as Schluter-DITRA or Laticrete Strata Mat), which helps prevent cracks in the concrete from transferring to the tile. Provided the joints, floor to wall transitions and connections to building fixtures are properly installed, Schlüter®-DITRA creates a waterproofing assembly with the tile covering that meets the requirements of the mandatory guide- Schluter Ditra Matting-Un-coupling Membrane for ti . The Universal Underlayment for Ceramic and Stone Tile. Made from ditra-xl, ditra and polyethylene function as a waterproofing layer that secures moisture-sensitive substrates, such as plywood/OSB. Immediately after the Schlüter®-DITRA 25 matting is installed, the tiles can be set using the thin-bed method and using a bonding tile adhesive that matches the requirements of the covering. Requirements for using Schluter Ditra. 1. We recently had to remove a bath floor that was installed on Ditra - I thought it would just require a flat shovel or scrapper to get under the ditra and separate it form the sub floor. However, today’s lightweight construction methods can make the installation of hard surface coverings particularly challenging. AND if your subfloor is tented or butted together super tight, The subfloor is 23/32" OSB supported by 2" x 10" floor joists spaced CTC at 16". Legend Essential Significant Helpful . Hardibacker isn't a subfloor (substitute for plywood), it's an underlayment (substitute for Ditra) as it doesn't provide structural support. Schlüter®-DITRA is a waterproof poly-ethylene membrane with a relatively high vapour diffusion density. Schlüter®-DITRA 25 is a waterproof poly-ethylene membrane with a relatively high vapour diffusion density. The type of thin-set mortar used to install DITRA depends on the substrate material. Then deduct the areas that won’t be heated, e.g. Requirements maximum spacing of joists, I-joists, or floor trusses is 16" (406 mm) o.c. I’m thinking about screwing the existing osb down more, then using a Ditra or laticrete stratamat underlayment, then tiling. To set DITRA over concrete or gypsum, Schluter-Systems recommends an unmodified thin-set mortar meeting the requirements … Ditra is a decoupler, meaning (in this case) there’s no chemical bond between the tile and the subfloor. Their 1/8 inch thick Ditra underlayment is a lightweight, polyethylene, fabric-like material … What type of thin-set mortar should I use when installing Schluter-DITRA? Re: ditra vs cement board Our tile installed switched from Durock to Ditra a few years back - we have been very happy. The minimum spacing is as follows. Schlüter -DITRA is a waterproof poly-ethylene membrane with a relatively high vapour diffusion density. the bathtub, vanity and toilet. I will be using 18x18 porcelain tiles, and using Schluter Ditra as the under-lament. In conjunction with tiled coverings, Schlüter®-DITRA 25 forms an uncoupling, waterproofing and vapour pressure equalisation layer. Requirements maximum spacing of joists, I-joists, or floor trusses is 16" (406 mm) o.c. Keep in mind that DITRA-HEAT cables should not be underneath a vanity. Provided the joints, floor to wall transitions and connections to building fixtures are properly installed, Schlüter®-DITRA 25 creates a waterproofing assembly with the tile covering that meets the requirements of the mandatory guide- Substrate Preparation verify that subfloor panels are properly fastened to framing members. Schluter - DITRA and DITRA-XL alternatives Prova Flex and Prova Heat are specifically developed for ceramic and stone tile installations Prova Flex and Prova Heat offer uncoupling to avoid split tile and grout. I’m not sure about subfloor requirements, I’ve only tiled on concrete. Provided the joints, floor/wall connections, and connections to building fixtures are properly installed, Schlüter®-DITRA creates a waterproofing assembly with the tile covering that meets the requirements of the mandatory guide- any leveling of the subfloor must be done Substrate Preparation verify that subfloor panels are properly fastened to framing members. 11 is used. For example, to set DITRA over plywood or OSB, a modified thin-set mortar meeting the requirements of ANSI A118. Then we found out that our subfloor is 1/2 inch plywood, with a 3/4 inch particle board underlayment. DITRA will forever change the way you lay tile. The two main techniques for this are fairly simple: Make sure the cavities (waffles) are filled correctly; Install it over an approved substrate (and with the correct type of thinset mortar) Photo 2. Schlüter®-DITRA 25 Underlayment Uncoupling, waterproofing and vapour pressure equalisation 6.1 Product data sheet. The DITRA mat uncouples the tile from the wood subfloor and can also be waterproofed. Ceramic and stone tiles are durable, easy to maintain, and hygienic, representing the ideal surface coverings. Type, thickness, and format of the ceramic or stone tile surface covering must be suitable for the intended application. PRODUCT & ORDERING INFO 28 HOW DOES IT WORK 27 Explanation of howSchluter®-DITRA functions Note: Revisions in the 2007 handbook are noted with a “ 07 ” in the left margin or column. They are rather explicit in that the structural requirements of the floor supporting Ditra and tile are less than the structural requirements of a floor supporting Hardie and tile. (16 mm) tongue-and-groove with 1/8" (3 mm) gap between sheets. The house is 19 years old if that tells you anything. With cement board, the tile is mortared to the cement board and the cement board is mortared to the substrate, so there’s a chemical bond. The cut-back stud structure of the Ditra-Heat membrane holds the heating cable in place without the use of clips or fasteners. I have a question on subfloor requirements for putting down ceramic tile. We are remodeling our laundry room and I have ripped out the existing laminate floor and plywood layer down to the subfloor. How to Repair Uneven Cement Boards. 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