However, a homeowner may need to raise the floor slightly before installing tile and lack the experience or time to install a mortar bed. Then install a 3/8" minimum ( 1/2" is prefered ) plywood CDX underlayment over your plank subfloor by stapling well with a 16 gauge x 1/2 crown contruction stapler. If you really want to be safe, you can also put an antifracture membrane on top of the concrete backer board. The backer board will also stiffen the subfloor system which, in turn, will reduce deflection and subsequent cracking. Install Schluter DITRA Over Wood Subfloors. 4. That’s why it was named the most preferred brand of backer board by tile installers and contractors, according to the 2019 Tile and Stone Report conducted by ClearSeas research in partnership with the National Tile Contractors Association and TILE Magazine. The plank subfloor is running perpendicular to the floor joists. 2. I've seen it in other houses. Floor is 100 year old 3/4 t & g pine over 3/4 pine plank subfloor. You need to put a layer or plywood, minimum 5/8 IIRC, over those boards, then mortar the backer to the plywood. You … Apply a supporting bed of mortar or modified thinset to your subfloor with your trowel. This is all setting on a 2”x6” tongue and groove subfloor. Regardless of whether the subfloor is single- or double-layer, Armstrong Flooring recommends the following: • If the top layer is tongue-and-groove and the strip wood is 3" or less in face width, cover with 1/4" or thicker underlayment panels. thick cement board. We tore out all the hardwood and put in 3/4 t&g plywood glued, mudded 1/4 fiberock and … Concrete is usually a good subfloor on which to install ceramic tile. I read that if installing HARDIBACKER, we have to lay thinset on the subfloor and then screw it to the subfloor. Hardie, or any CBU without thinset under is a fatal mistake that will results in … 2. You need to remove the Hardie attempting to salvage if possible, and start over with someone that is a tile setter and not a handyman. The majority of the subfloor is in good shape and sturdy. Aug 30, 2019 - Explore Bill Perkins's board "plywood subfloor" on Pinterest. I've removed the old floor covering and discovered that we've got a subfloor that consists of 3/4" thick, 7" wide wood planks spaced about 1/4" to 1/2" apart. You would need at least 1/2″ concrete backer board that would require thin set and to be screwed down. Installing tile over a wood subfloor is a lot easier today than it was when I started my remodeling career. When subfloors are nailed in place, the floor can become extra squeaky, either almost immediately or over time. level 1. … Plan so the joints in the backerboard won’t line up with the joints in the subfloor. The result of Schluter-DITRA’s performance is a tile floor with outstanding durability and resistance to cracks and moisture. The minimum subfloor specified is 5/8" exterior grade plywood or 23/32'' exterior grade OSB subflooring. Using Subfloor Screws to Correct Squeaky Floors. Cement board over top, or rip out what I had just finished and put cement board directly over the plywood subfloor? When installing vinyl plank flooring over existing floor materials, underlayment may not be required, but it can help with cushioning and sound reduction. If the subfloor is wood, won't the thinset cause the wood to get moist and possible rot over time? The TCA-150 calls for 1/2" underlayment, but that's also assuming it's over a 5/8" plywood subfloor. 1. I am hoping to use Custom Building Products Wonder Board 1/2 in. Also, did you use thinset between the ply and the Hardibacker? It is a standard carpet with pad on top of 5/8” particle board. Not Staggering the Seams. Backer Board and the ¼â€ tiles right on the subfloor. Over time, that will cause tile to pop loose or crack. What subfloor should HardieBacker® cement board be installed over? I … 3. • Begin the fastening pattern in a corner of the board, then fasten the two adjacent edges. Mix up modified thin-set. 1. I am planning on installing 1/2" plywood on top of planks and 1/4" backer board for the 1/4" tiles. Can I simply put the thinset directly on the plank subfloor? If the tile is being installed in a bathroom, consider applying an isolation membrane over your wood subfloor to further protect against expansion and contraction. Do I need to put down thin plywood over the subfloor and then install the HardieBacker? Using a sliding motion, firmly and evenly embed your HardieBacker Cement Board in the wet mortar. I have that in my residence. The hardwood flooring must be installed crossing the subfloor boards (90 degree angle). Engineered, Solid Wood or Floating Wood Flooring that are less than 1/2" thick can be installed over a wood plank subfloor as long as the 3/4" plank subfloor is flat. I believe he needs to beef up the sub-floor with 1/2" ply screwed/glued down over … Do a dry run and lay the backerboard down to fully cover the area you plan to tile. HardieBacker boards must be flush with subfloor during installation. Floor is rock solid and nailed tight. Wood Strip, Board, or Plank Subflooring These subfloors must meet structural requirements. I went back to Lowe’s and picked up DUROCK cement backer board instead, plus thinset, the proper screws , and alkali-resistant fiberglass mesh tape . The contractor laid Hardi500 over the plank subfloor and bonding it down with about 6 tubes of liquid nails, the hardiscrews along the joists and about a million 1" crown-point staples. Also if the SUBFLOOR is like a deck made above the ground, just being held with 2x4's, what size hardibacker should we use, 1/4 or 1/2? Everything I have been reading says to use thinset for the backerboard. If the plywood subfloor you’re placing is 5/8 of an inch thick, you need a screw about 1 5/8 inches long. The antifracture membrane would assist with any movement in the subfloor, where the backer board assists with any flex in the subfloor. Backer board over hardwood may last a bit longer but I wouldn't do it. The old-fashioned mud method of floating a thick mortar bed in preparation for the tile has given way to using cement backer board over a plywood subfloor. Those 1x8 boards won't give a solid foundation and will flex. This is a small bathroom measuring 60" x 104" Joists are 16" on center. Hence the need for 1/8″ gaps between seams. Out with the OSB. Tile over plank subfloor I'm planning on installing 12" ceramic tile flooring as part of a kitchen renovation in our new house. Let’s dive into the installation process. I am replacing the carpeting in my hall with 12” ceramic tiles. The various brands of cement board, such as HardieBacker, Durock, DenShield, and Wonderboard have become a standard tile backer material for nearly all ceramic, porcelain, and stone tiles for floor, wall, and countertop applications. You cannot put a cement backer board over that. For wood subfloor, a moisture barrier is unnecessary, but underlayment can provide cushion. If installing over an appropriate wood surface, sand the wood to make it smoother, and remember that the installation will work better over a subfloor at least 1-1/8 inches thick. Using the screw pattern as a guide, fasten your HardieBacker Cement Board with nails or screws every 8” on center over the entire surface. And my '07 manual shows a lack of backerboard in the sandwich. Once your subfloor is good to go it’s time to install the DITRA. Hardibacker or concrete boards for ceramic tile, on the other hand, provide a stable base for the tile installation, which means the existing flooring needs to be taken into consideration. If needed, cut the backerboard to fit in small spaces or around obstructions. I'm curious to know what type of 3/8" plywood you installed. DITRA is also noted for its ease of use when compared with materials like cement backer board. Should I run the seam of the HardiBacker perpendicular to the floor joists or perpendicular to the plank subfloor? Prepare a solid, squeak-free subfloor One of the keys to a long-lasting tile installation is the underlying subfloor. Toilet flange is 1-1/4" above plank subfloor so these measurements would seem to add up ok, I hope. On all our jobs where we use Durock for floor tile we install 1-1/8" Advantech with joists 16" OC. HardieBacker® cement board is made better to install better and perform better. It sounds like the subfloor needs help too. To avoid building up the floor too high, you can use 1/4-in.-thick backer board instead of 1/2-in. Now, this is an area that the plywood installers will be familiar with. Return to the corner and fasten in a diagonal pattern from that corner until the board is completely fastened. The big problem with tight subfloor seams is they don’t allow for expansion and contraction. Whatever your subfloor is made of, be sure it’s squeak free before you install the cement board. Placing cement boards over the concrete subfloor is an excellent way to create a solid and smooth subfloor. The main floor is actually the second floor of the house so it's built from 3/4 inch tongue and groove plywood o… Re: Installing tile over diagonal solid subfloor Even if the 1x10 is a true 1" I don't believe it will be sufficient. He swore up and down this would be a perfect floor, no additional ply, thinset, etc were needed. These convenient panels of cementitious board provide an instant flat, hard surface that bonds with the thin-set adhesives or mortars used to install tile. It has to be rock solid before you lay the 1/2-in. Contractor is trying to talk me into replacing the existing diagonal plank subfloor from when the house was built in 1950. An Alternative to Using Backer Board Over Subfloors Prior to Tiling: When I built the house I wanted all my bathrooms, hallways and the kitchen floor to be tiled which was close to about 1500 square feet. This underlayment also acts as a waterproof membrane over moisture-sensitive subflooring such as plywood and OSB. The backerboard should completely cover the subfloor joints. If you're laying tile in any of the rooms then planks will need reinforced with 15/32" ply laid over the planks however. , did you use thinset between the ply and the ¼â€ tiles right on the plank from. 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