The proper slope is 1/4 inch per foot so about 1/8 total for a niche. Suitable panel thicknesses of . Our Authorized Schluter. Horizontal. The KERDI-BOARD-KIT provides enough KERDI-BOARD to cover up to 101 ft² (9. The Kerdi-Shower-T/-TS/-TT is designed to integrate with the Schluter-Kerdi-Drain. it's stock at my Menards. Model # KB1212202440. 00 for Kerdi Band or 96 sq. Schluter Systems Kerdi Board Prefabricated Waterproof Shower Niche 12" x 28" for Sealed Shower Assemblies, Tile Ready, Suitable for Shower Installation. com. x 32 in. Model # 50000076. When I Googled "thinset for porcelain tile over Kerdi board, I found this John Bridge Forum. Kerdi eliminates water damage which can lead to mold and mildew. The waterproofing is carried to the height of the showerhead (at minimum). Mike Holmes on Schluter®-KERDI-BOARD. Modified thinset relies on the moisture evaporating to harden up and dry out. Available in eight thicknesses, KERDI-BOARD building panels allow you to cut. The trays are available in 39" x 39" (100 cm x 100 cm), 55" x 55" (140 cm x 140 cm), 48” x 48” (122 cm x 122 cm), 36” x 72” (91 cm x 183 cm), 38” x 76. g. Transition from Kerdi Board and tile to drywall: stephen Anderson: Tile Forum/Advice Board: 5: 03-28-2013 09:09 PM: Cement Board / Drywall Transition: paulestuart: Tile Forum/Advice Board: 4: 10-08-2009 09:36 PM: Hardybacker board/Drywall transition: mauro39: Tile Forum/Advice Board: 2: 07-09-2007 02:11 PM: Cement Board. Opening hours & directions for Screwfix Cork - Little Island. wide integrated bonding flange; Measures 12 in. KERDI-BOARD. Schluter Kerdi-Drain Flange PVC 3in. Kerdi-Shower-T/-TS/-TT is a prefabricated sloped shower tray with integrated Kerdi waterproofing. 290 ml cartridge in color grey. 10 m. 10:40. thick and allows for lateral and tilt adjustment. seuil KERDI-BOARD-SC peut être employé avec toute base de douche. 3-inch x 16 ft. 8 mm. 2. Step 1: Choose a board thickness of at least 2" and cut KERDI-BOARD panels to the desired size. This board is available in two different panel sizes: 1250mm x 625mm (0. Kerdi board is lightest. KERDI-KEBA comes in widths of 8. It can be installed in Kerdi and Kerdi-Board shower assemblies. We have two products in our range for this: KERDI-KEBA polyethylene sealing band with fleece laminated on both sides and the KERDI-COLL-L sealant adhesive. The Kerdi-Drain grate can be used in both commercial and residential applications. 5. paul newton. The KERDI membrane is used here to cover the shower tray and curb, and integrate with the KERDI-DRAIN bonding flange. • Panel dimensions are 1/2-in x 48-in x 96-in. Contents hide. 42in. Schluter®-SHELF-W. Tile ontop of kerdi board, apply schluter edge. with a 3-1/2 in. KERDI-BOARD is adhered directly to base cabinets using the Schluter®-KERDI-FIX adhesive. Please choose your country or language to be directed to the website of the corresponding subsidiary. 8 Sq M) 9. The backsplash may consist of KERDI-BOARD or other appropriate tile substrate. Nederlands. Buy online and collect in store in as little as 1 minute. 5-lin ft Polyethylene Waterproofing Tile Membrane. Only 20 left in stock - order soon. I like GoBoard over KerdiBoard for a few reasons. Description. Learn more about how Kerdi Board and drywall compare. What is selected store? Get Directions From. Unlike Durock, which is very heavy, Kerdi board is quite lightweight. CONTENTS 4 6 Schluter®-KERDI waterproofing membrane 8 Schluter®-KERDI-BOARD waterproof building panel 10 Schluter®-DITRA-HEAT shower application 12 Curbless showers 16 Schluter®-KERDI waterproofing membrane and Schluter®-KERDI-BOARD waterproof building panel 18 Schluter®-KERDI-DS waterproofing membrane 20 Bathtub. Videos. x 5 ft. But then you have the caution in the Appendix to ANSI A108. Available in eight thicknesses, KERDI-BOARD building panels allow you to cut. Install Kerdi Shower Drain. 10:40. It’s a strong, lightweight cement board that won’t throw off the dimensions of your room. ft. Rectangular shelf for tiled walls. It is suitable for use as a sealant and can be used to bond Kerdi-Band and Kerdi waterproofing membrane to fixed. Prowarm Backer-pro Insulation Board 6mm. Buy Building Supplies at Screwfix. 0 5. I plan to tile all the way up to the ceiling (but the ceiling will remain textured drywall). Horizontal spacing: 12 (30 cm) or 16 (40. Qboard Basiq Square edge Backerboard (H)1200mm (W)600mm (T)10mm. KERDI-BOARD is adhered directly to base cabinets using the Schluter®-KERDI-FIX adhesive. It is elastomeric and bonds well to most materials. 100 pack. Kerdi-Board is made from an extruded polystyrene foam panel, with a special reinforcement material on both sides and fleece webbing for. Niche Recessed Shower Wall Shelf, 16-in W x 20-in H x 4-in D. I suppose an extra 7mm of Kerdi-Board would help reduce sound without the additional. My main concern is relative movement between the ceiling and walls, and. I just joined this forum for some help on my upcoming tiling job. Have already bought 1/2" Kerdi board and 12x24 porcelain tile for the tub surround. The Kerdi board is a versatile tile substrate primarily used to create a flat surface for your tiles. c. 08-20-2010, 11:33 PM. Suitable for Scoring Ceramic Wall & Floor Tiles. 27 after $25 OFF your total qualifying purchase upon opening a new card. As a ‘one stop shop’ for busy tradesmen and DIY enthusiasts, we provide plenty of options at competitive prices and orders are taken 24 hours a day 7 days a week. Schlüter®-KERDI-FIX can also be used for adhering other. I have thought about applying the sheetrock to the exterior wall, then furring with 2x4s on flat horizontally. KERDI-BOARD brings great versatility to tile, allowing you to build custom elements that would be next-to-impossible to create using tile backer board or other conventional building panels. Find some existing tutorials and project documentation videos to learn how-to get the best out of our products - for more fun in your life, start now! Watch more videos / playlists. The ease of installing the Kerdi. KERDI-BOARD-ZS are coarse thread screws used to fasten KERDI-BOARD to wood stud framing with the corresponding washers. 50 delivery Mar 13 - 15 . x 28 in. It appears to be melting. 5-inch Waterproofing Membrane (54 Sq. Delivery. The prefabricated Schlüter-KERDI-BOARD-NLT-BR sets with LIPROTEC technology enable the installation of illuminated niches in wall areas. I am currently in the process of tiling a bathtub surround. Kerdi 3 ft. Now you want to cut a 2×4 for both the top and bottom of the niche. Sealing and bonding compound to eliminate leaks. Cement board comes both in 1/4-inch-thick and 1/2-inch-thick versions. Our Authorized Schluter ® Dealers. Certifications. BACKER-PRO insulation Boards are ideal for two. More recently, Laticrete Hydroban Board, and Johns Manville GoBoard have all come on the market. Waterproof Foam Board Panel. This curb is waterproof and only the joints and corners need to be sealed to complete waterproofing. Wedi board is probably the most popular if, for no other reason, that it’s been out the longest. #1 · Feb 25, 2021. Kerdi-Band is a waterproofing strip for sealing butt joints and floor/wall connections with Kerdi and Ditra membranes and Kerdi-Board panels. Unlike cement boards, you can bend this material without it breaking. c. The KBZS35GT32Z is a hardware set consisting of screws and washers designed for the installation of Kerdi-Board. Use my current location. KERDI-SHOWER-LT/-LTS. 8 KERDI-BOARD-ZSD are anchors. 00 $ 11. cm x 97 cm) KERDI-BOARD waterproofing panels, KERDI-BAND, pipe and mixing valve seals, screws and washers, plus 290 ml of KERDI-FIX sealant in bright white. Screwfix customers rate this product 4. When you install DITRA or DITRA-XL, the Shower System, KERDI or KERDI-DS, DITRA-HEAT or DITRA-HEAT-DUO with one of our Schluter thin-set mortars, your installation may be eligible for lifetime warranty coverage. It was originally created as a solution to the issues that come with using cement boards. 15T; Available in grey and white; Lifetime warranty when used with applicable Schluter ® productsDrywall comes up to the outside corner, and overlaps the raw kerdi edge. 5, 12. . thick x 2 in. ridgid 59585; nysjon mirror installation; fila mp90 eco xtreme sealer; elcb socket plugProduct Table. While cement board is a reliable tile underlayment, it isn’t. He claims that using Kerdi fix provides waterproofing, as well as better adhesion for the tiles vs the Kerdi band. These include: Wedi joint sealant is all that is required to seal joints between wedi board, and of course wedi fasteners (screws and washers) to mount and hold the joints together. To be used in conjunction with Schluter ®-Systems’ uncoupling and waterproofing membranes (DITRA, DITRA-HEAT, and KERDI), the Schluter ®-Shower System, and KERDI-BOARD; Meets ANSI A118. For curbless showers, a sealed system is the method to use for building a shower with no curb. Workshops for Professionals. KERDI-SHOWER-LT/-LTS. 78m²) or 2600mm x 625mm (1. HardieBacker board is the ideal cement board for tile laying. 50 m KB ZA 19 EB U-shaped brushed stainless steel profile with 2 perforated anchoring legs 3/4" – 19 mm KB ZA 25 EB U-shaped brushed stainless steel profile with 2 perforated anchoring legs 1" – 25 mmThe cement board is fire-resistant, and since Durock is a cement-based board, it’s going to be fire-resistant, unlike Kerdi board. Product Type. 2 mm) Pliable, easy to install, and guarantees uniform thickness for reliable performance. KERDI-LINE Linear Drain. Kerdi-Band is a waterproofing strip for sealing butt joints and floor/wall connections with Kerdi and Ditra membranes. 4 Fiber Cement Board. The set contains 40 screws and 40 washers. Quick and easy to install, Schluter prefabricated substrates combine comfort, convenience, and design. Kerdi-Board-SN 12-in x 6-in Shower Niche. Made from the multifunctional tile underlayment Schlüter- KERDI-BOARD, the washbasin/vanity unit can be directly covered with tiles using the thin bed method. Add to basket. This is because a Kerdi-Board panel has a maximum allowable on-center spacing for fasteners. ceilings, the panels included will cover 12 linear feet (3. I have a design it mind that includes part tile on the board and the rest is a high gloss painted. Kerdi200/5M covers 54 sq. 375-in W x 98. Thinner formats. The KERDI-SHOWER-T is the standard tray and are available with center drain placement is available in 38" x 60" (97 x 152 cm), 48" x. Horizontally, the spacers should be fastened to the studs on the wall, with a maximum distance of 16". Kerdi-Fix is a single-component sealing and bonding compound with a silane-modified polymer base. Schluter Systems Kerdi-Band 16. x 16 in. You do not have the geolocation service activated. Kerdi Washer and screw Install washer overlapping two boards, on studs. It is used to fasten Kerdi-Board to stud framing. com. 4 m²) of wall area. Step 7: Finish the KERDI-BAND Installation. Videos. Each of these sloped, prefabricated shower trays are designed to integrate with the Schluter®-KERDI-DRAIN. Position the Kerdi Shower Drain in place and Embed within Thinset Mortar. The floor can be sloped on a single plane to KERDI-LINE, which enables the use of large-format tiles and creates interesting design. Shower in a Few Hours with Schluter®-KERDI. 1. c. 1. Location: Boerne, Texas. Description. I am in the process of remodeling my bathroom. The kit includes Kerdi–Board panels, Kerdi waterproofing band, pipe seal, mixing valve seal, screws and washers, and Kerdi-Fix sealant. 34 Inc VAT. Dealers. Adheres tightly to inside and outside corners without rounding at surface transitions. wide integrated bonding flange ; Features a prefabricated Kerdi-Board shelf that can be installed at any height to create separate compartments within the shower niche if desired ; Measures 12 in. Another excellent solution for a watertight shower is the Schluter Kerdi 108 Sq Ft Waterproofing Membrane. Please enter your city or postal code above to find a dealer near you. I assume I can just run my Kerdi membrane around my shower valve. (dependent on stud spacing) This package contains: 100 KERDI-BOARD-ZS screws 1-5/8" (41 mm) 100 KERDI-BOARD-ZT. The Schluter®-KERDI-DRAIN-A adaptor kits are designed to convert clamping ring drains to integrated bonding flange drains when removal of the clamping ring drain is not practical (e. Building Panel (25) $35 And. Please enter your city or postal code above to find a dealer near you. The shower niche features a 1/2" (12. CLEARANCE. Mastic is a glue for installing ceramic tiles. Accessories are used to enhance tiled shower applications, providing shelving, splashguards at the entrances to curbless showers, support channels for glass walls, and wall finishing that eliminates the need to cut wedges of tile in KERDI-LINE applications. Kerdi-Fix is odor-neutral, UV- and weather-resistant, and contains no solvents. Wedi's website indicates the wedi boards (essentially large sheets of rigid foam with concrete surface) should be attached to substrate with adhesive (wedi 320) or directly to studs with another adhesive (wedi 610) and the washers are used with "metal dowels" only for leveling uneven surfaces (the given diagrams show partially-crumbled. Product type. 113 posts · Joined 2014. Ceramic and porcelain tile, more than almost any other surface material, need a stable. b) 19mm (or possibly 25mm) Kerdi-Board on its own. 61. Schluter Kerdi Board Shower Bench (Rectangle 48"x16"x20") VEVOR Ready to Tile Shower Seat, 38. To complete the drainage solution, you can select from the point drain Schlüter-KERDI-DRAIN, which provides a central point of drainage for the water, or the linear drain Schlüter-KERDI-LINE, which allows. Using a notched trowel, add thin-set to the wall and cover the entire application area. Unmodified hardens up due to a chemical reaction. 4 m²) of wall area. Amazon's Choice in Shower Installation Kits by Schluter Systems. The type of bonding mortar used to apply KERDI must be suitable for the substrate and must penetrate and engage the membrane fleece. Get inspired! See Schluter® products installed in our Inspiration Gallery series. Kerdi boards can be used with approved bonded waterproofing. Save time and waste less by creating your tile-ready element with KERDI-BOARD. Kerdi-Board 1/2 in. Follow these tips when using this product: 1) Measure width or height of tub surround before cutting kerdi-board to size. 4), Fill niche (s) as desired. There's maybe a 1/4" of painted wall that rounds the corner before it meets up with the schluter edge. W x H x D: 260 x 90 x 7mm. 00 / piece Size: 96 x 48 x 1/2in. 1. In this linear drain shower, we are using KERDI-BOARD building panels fastened directly to the studs , instead of gypsum or cement board, tocreate a bonded waterproof assembly. The trays are made of lightweight, expanded polystyrene (PS40) for constructing mortar-free shower bases. Multiple sizes/thicknesses available. Opening hours & directions Open 7 days a week Click & Collect. 64. g. Cement board comes both in 1/4-inch-thick and 1/2-inch-thick versions. 5, 19, 28, 38 and 50 mm. $10. Kerdi board is waterproof because of the foam. My walls are not true, so I need to shim behind the Kerdi-board in a few spots. KERDI-BOARD can be fully adhered in wall areas or spot-bonded with thin-set mortar. Laticrete Hydro Ban 5gal. Kerdi-Fix is a single-component sealing and bonding compound with a silane-modified polymer base. Add the images to your Project List to keep products in one convenient location. £. KERDI-BOARD is the ideal substrate for creating shower benches that are ready for tile. Schluter-Ditra Uncoupling Membrane. Simple to cut with a utility knife, KERDI-BOARD can be easily customized to fit your bench size and design specifications. Couple of questions. 105 posts · Joined 2015. A ‘Board selection and fixing guide’ is available to help with choosing board thickness. Prime The KERDI Board. Learn what to look for here. Kerdi-fix is suitable for use as a sealant or joint compound. 7 KERDI-BOARD-ZT/-ZS are installation screws and washers for the quick attachment of KERDI-BOARD to wood stud framing. Place Kerdi Shower Pan into position and embed into thinset mortar. It is lightweight and made of expanded polystyrene. Available in 2600mm x 625mm panels, in the following thicknesses:. $109. Schluter®-DITRA uncoupling membranes provide uncoupling. Also regular latex paints work for painting the wedi board. They are like drywall+kerdi membrane all in one to reduce installation time. Kerdi-Board-SC is a lightweight, prefabricated shower curb. x 32 in. Brushed stainless steel frame and closed-design grate Brushed stainless steel frame and perforated grate Frameless tileable covering support 4-23/32" - 120 mm 2-1/4" - 57. Click & Collect. Lightweight for ease of installation. Products reviewed by the trade and home improvers. The curb can be used in conjunction with KERDI-SHOWER-T/-TS/-TT shower trays or mortar. 4. Schluter. PVC membrane up over the kerb, as well as a foot up the walls. Screw and 1-1/4 in. Roll is 5 in. James Hardie wouldn't sanction that, either, but installing a CBU (not a Fiber/Cement board) over the plywood would suit Schluter better. g. KERDI-BOARD-ZS are coarse thread screws used to fasten KERDI-BOARD to wood stud framing with the corresponding washers. X 96 in. 0 out of 5 stars 8 ratingsOn concrete floors, GoBoard™ will act as thermal insulation under the tile. Single Source . They didn't stock the carbide cutting tool at CTD so at the moment just got wood blades for the jigsaw (looks like it would eat through them like no tomorrow!) and normal stone blade for the grinder. Basically once the Kerdi or Ditra is applied, you've got a water proof surface to apply the tile to. Countertops made of KERDI-BOARD Minimum board thickness = 1-1/2" (38 mm) 1. Schluter®-KERDI-BOARD-SC is a prefabricated shower curb, made of KERDI-BOARD, for use in conjunction with the Schluter®-Shower System. Specifically, the tiler installed Kerdi fix for corners, joints, and screw heads vs Kerdi band. Find some existing tutorials and project documentation videos to learn how-to get the best out of our products - for more fun in your life, start now! Watch more videos / playlists. We have two products in our range for this: KERDI-KEBA polyethylene sealing band with fleece laminated on both sides and the KERDI-COLL-L sealant adhesive. The bench is available in triangular and rectangular. No help from Schluter to date. This curb is waterproof and only the joints and corners need to be sealed to complete waterproofing. Vast range of equipment available. 58 Cents / each. • Designed to seal and waterproof joints and floor/wall connections in Kerdi, Ditra and Kerdi-Board installations. Due to a fleece-free inner zone, the collars are suitable for use with multiple pipe diameters from 12-140mm. FREE next day delivery available, free collection in 1 minute. We then have green board, which is a commonly used term for a very special type of drywall that is made to be water-resistant. Save time and waste less by creating your tile-ready element with KERDI-BOARD. 1. DITRA can be installed in accordance with the. ft. Let’s see in more details the comparison. Tile can be installed directly over Kerdi-Board using the thinset method. Prefabricated Shower Curb. acaciaguy; Nov 25, 2018; Tiling Forum; backer boards boards tile tiling weight; Replies 7. H x 3. SHELF-N is a rectangular shelf that fits the prefabricated Schluter-KERDI-BOARD-SN shower niche. drumrocker365 • 6 mo. Screw in the bottom backer board. Sag-resistant, smooth and creamy. , Yes you can use an Unmodified thinset or our AllSet thinset to stick this membrane to a drywall or cement board (no plastering needed) Answered by: Schluter Systems Canada. x 48 in. Northants Tools is one of the leading suppliers of Schluter Kerdi Board online. • Panel dimensions are 1/2-in x 48-in x 96-in. Français. It is installed with unmodified thinset to ensure a fully water-tight seal to prevent leaks. Add to basket. Product description. This lightweight waterproof backerboard can be fastened to the substrate with screws and washers or adhered with cement based tile adhesive. 8 755 ratings. Attach second piece. 9/5. Place painter’s tape to protect the tub deck. x 96 in. They feature tabs that penetrate the surface of the KERDI-BOARD and temporarily hold the washers in place to enable quick installation of the corresponding screws. W x 12 in. Possom said: ↑. Free Delivery . 0. The first SMS will be on the same day your order is placed to collect the first part of your order. 92. Lightweight, easy to handle and transport. 18. It’s probably more water proof (moisture will not deteriorate Kerdi-Board) Its only about 30% more in cost (about $440 for at large 4 foot time 8 foot shower or 96 sq. Wedi showers feature a pre-sloped base that is already installed. Until the price goes down on Kerdi im sticken to Denshield!-KERDI-BOARD is ideally suited to create anything from simple partitions to entire toilet and shower facilities or public changing rooms. Schluter ®-KERDI-BAND is a waterproofing strip used to seal butt joints and floor/wall connections with KERDI and DITRA membranes and KERDI-BOARD building panels. Then apply 5 inches of mortar above the flange (See Figure 10). #schluterkerdiboard #schlutershowersystems #schlutershowersystems The Schluter®-KERDI-BOARD-KIT is the perfect solution for waterproofing walls in tile applicat. Odorless and free of solvents. Kerdi-Board-SC is a lightweight, prefabricated shower curb. The KERDI-DRAIN-F is a specialized floor drain compatible with Schluter uncoupling membranes, such as DITRA, DITRA-XL, DITRA-HEAT, and DITRA-HEAT-DUO. , kitchens and baths). 4 insulation) + Schluter Ditra uncoupling membrane + 3/8″ porcelain tile. Schluter®-SHOWERPROFILE-WSK is an anodized aluminum support profile that is adhered to the tile surface. Schluter Kerdi Board: Northants Tools are a leading supplier of Schluter Kerdi Board in the UK. Product Thickness. Find My Store. Schlüter®-KERDI-BOARD is suitable for: creating tile substrates on green masonry,Foam Tile Backer Boards. #1 · Feb 25, 2021. It is used to fasten Kerdi-Board to stud framing. Product Table. Product Width. The Schluter®-KERDI-BOARD-V panels feature grooves to allow for quick and easy creation of curved elements. Tiles can be installed directly over KERDI-BOARD using the thin-set method. Lightweight, easy to handle and transport. S. it looks fine! i could post a pic if that helps. REMA’s installation is independent of tile size and thickness and enables exact matching of the access panel to the overall joint design. The Schluter-KERDI-BOARD-KIT combines all of the necessary components to waterproof and tile ready the walls of your bathtub and acrylic shower base using waterproof building panels. Place two screws on the top and two on the. Would you have any suggestions on doing this? Would the walls be Kerdi-boarded first, tiled, then a shelf inserted? Kerdi-Fix 290 ml Gray Tile Edge Sealing/Bonding Compound. Each of these sloped, prefabricated shower trays are designed to integrate with the Schluter®-KERDI-DRAIN. for pricing and availability. 3. c. The KERDI-DRAIN-F is a specialized floor drain compatible with Schluter uncoupling membranes, such as DITRA, DITRA-XL, DITRA-HEAT, and DITRA-HEAT-DUO. So the Kerdi valve seal isn't going to fit around my shower valves. 5. 0. 80 $ 94 . Combine multiple colours for an individual and striking appearance. 0 at Check Nearby Stores . of wall space, which is a big shower) 1/2" inch Kerdi board is $3. Kerdi eliminates water damage which can lead to mold and mildew. Add to List. Floor & Decor has top quality Shower Systems at rock bottom prices. 1. $109. Washer (100 Screws +100 Washers) Washers for Installation of Foam Board Panels 1-1/4 Inch Galvanized Steel Washer for Fixing Fastening Installation (150 Pcs) KERDI-BOARD-ZT Washers for Installation of KERDI-BOARD Panels - 1-1/4" (Quantity: 100) Add to Cart. The Schluter®-SHELF-N is a rectangular shelf designed to fit into Schluter®-KERDI-BOARD-SN prefabricated niches. Inspiration Gallery. Nes Home White Granite Cladding Modern PVC Panels Shower Wet Wall 2400x1000x10mm, Coverage 2. Due to an overhead shower, the stud walls are to be faced in Schluter Kerdi-Board and tiled to the ceiling. Transition profile covers exposed wall where floor slopes to linear drain. Where thicker tiles are used, simply fill the space below the profile with thin-set mortar. Waterproof Foam Board Panel. Schluter®-KERDI-BAND should beMike Holmes on Schluter®-KERDI-BOARD. It is waterproof and comes in various lengths and widths, making it suitable for all project sizes. Description Size Length supplied: 8' 2-1/2" — 2. KERDI-LINE can be installed adjacent to walls or at intermediate locations. The Schluter-KERDI-BOARD-KIT combines all of the necessary components to waterproof and tile ready the walls of your bathtub and acrylic shower base using waterproof building panels. Kerdi-Board-SC is a lightweight, prefabricated shower curb. Schluter®-KERDI-FIX is a single component, waterproof sealing and bonding compound with a silane-modified polymer base. Schlüter-DITRA is a waterproof polypropylene membrane with a relatively high water vapour diffusion seal. Fiberock Backer Board. Kerdi-Board 4-ft x 8-ft x 1/2-in Waterproof Polystyrene Foam Backer Board. .