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hardibacker over plank subfloor

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. I'm curious to know what type of 3/8" plywood you installed. I … 2. 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 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. 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. On all our jobs where we use Durock for floor tile we install 1-1/8" Advantech with joists 16" OC. Prepare a solid, squeak-free subfloor One of the keys to a long-lasting tile installation is the underlying subfloor. I've seen it in other houses. This underlayment also acts as a waterproof membrane over moisture-sensitive subflooring such as plywood and OSB. Over time, that will cause tile to pop loose or crack. Do I need to put down thin plywood over the subfloor and then install the HardieBacker? Not Staggering the Seams. HardieBacker boards must be flush with subfloor during installation. Contractor is trying to talk me into replacing the existing diagonal plank subfloor from when the house was built in 1950. 2. HardieBacker® cement board is made better to install better and perform better. Once your subfloor is good to go it’s time to install the DITRA. You … 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. If needed, cut the backerboard to fit in small spaces or around obstructions. The backerboard should completely cover the subfloor joints. The TCA-150 calls for 1/2" underlayment, but that's also assuming it's over a 5/8" plywood subfloor. 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. The hardwood flooring must be installed crossing the subfloor boards (90 degree angle). I read that if installing HARDIBACKER, we have to lay thinset on the subfloor and then screw it to the subfloor. 1. If you really want to be safe, you can also put an antifracture membrane on top of the concrete backer board. The majority of the subfloor is in good shape and sturdy. Return to the corner and fasten in a diagonal pattern from that corner until the board is completely fastened. To avoid building up the floor too high, you can use 1/4-in.-thick backer board instead of 1/2-in. 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. level 1. … Do a dry run and lay the backerboard down to fully cover the area you plan to tile. I believe he needs to beef up the sub-floor with 1/2" ply screwed/glued down over … Mix up modified thin-set. The result of Schluter-DITRA’s performance is a tile floor with outstanding durability and resistance to cracks and moisture. Backer Board and the ¼â€ tiles right on the subfloor. Aug 30, 2019 - Explore Bill Perkins's board "plywood subfloor" on Pinterest. If the subfloor is wood, won't the thinset cause the wood to get moist and possible rot over time? Toilet flange is 1-1/4" above plank subfloor so these measurements would seem to add up ok, I hope. It is a standard carpet with pad on top of 5/8” particle board. 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 . It sounds like the subfloor needs help too. It has to be rock solid before you lay the 1/2-in. Out with the OSB. He swore up and down this would be a perfect floor, no additional ply, thinset, etc were needed. 4. Apply a supporting bed of mortar or modified thinset to your subfloor with your trowel. Concrete is usually a good subfloor on which to install ceramic tile. This is all setting on a 2”x6” tongue and groove subfloor. The plank subfloor is running perpendicular to the floor joists. However, a homeowner may need to raise the floor slightly before installing tile and lack the experience or time to install a mortar bed. What subfloor should HardieBacker® cement board be installed over? Using Subfloor Screws to Correct Squeaky Floors. Tile over plank subfloor I'm planning on installing 12" ceramic tile flooring as part of a kitchen renovation in our new house. I am planning on installing 1/2" plywood on top of planks and 1/4" backer board for the 1/4" tiles. Also, did you use thinset between the ply and the Hardibacker? Let’s dive into the installation process. You would need at least 1/2″ concrete backer board that would require thin set and to be screwed down. You need to put a layer or plywood, minimum 5/8 IIRC, over those boards, then mortar the backer to the plywood. The minimum subfloor specified is 5/8" exterior grade plywood or 23/32'' exterior grade OSB subflooring. For wood subfloor, a moisture barrier is unnecessary, but underlayment can provide cushion. Hardie, or any CBU without thinset under is a fatal mistake that will results in … • Begin the fastening pattern in a corner of the board, then fasten the two adjacent edges. thick cement board. Can I simply put the thinset directly on the plank subfloor? Using the screw pattern as a guide, fasten your HardieBacker Cement Board with nails or screws every 8” on center over the entire surface. 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. 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. Install Schluter DITRA Over Wood Subfloors. Backer board over hardwood may last a bit longer but I wouldn't do it. Wood Strip, Board, or Plank Subflooring These subfloors must meet structural requirements. Should I run the seam of the HardiBacker perpendicular to the floor joists or perpendicular to the plank subfloor? 3. The backer board will also stiffen the subfloor system which, in turn, will reduce deflection and subsequent cracking. This is a small bathroom measuring 60" x 104" Joists are 16" on center. Installing tile over a wood subfloor is a lot easier today than it was when I started my remodeling career. I am hoping to use Custom Building Products Wonder Board 1/2 in. 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. The big problem with tight subfloor seams is they don’t allow for expansion and contraction. If you're laying tile in any of the rooms then planks will need reinforced with 15/32" ply laid over the planks however. 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. Those 1x8 boards won't give a solid foundation and will flex. 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. When subfloors are nailed in place, the floor can become extra squeaky, either almost immediately or over time. 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. Floor is rock solid and nailed tight. Hence the need for 1/8″ gaps between seams. I have that in my residence. Re: Installing tile over diagonal solid subfloor Even if the 1x10 is a true 1" I don't believe it will be sufficient. 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? Placing cement boards over the concrete subfloor is an excellent way to create a solid and smooth subfloor. 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. If the plywood subfloor you’re placing is 5/8 of an inch thick, you need a screw about 1 5/8 inches long. Everything I have been reading says to use thinset for the backerboard. Whatever your subfloor is made of, be sure it’s squeak free before you install the cement board. 1. The main floor is actually the second floor of the house so it's built from 3/4 inch tongue and groove plywood o… Using a sliding motion, firmly and evenly embed your HardieBacker Cement Board in the wet mortar. Floor is 100 year old 3/4 t & g pine over 3/4 pine plank subfloor. The antifracture membrane would assist with any movement in the subfloor, where the backer board assists with any flex in the subfloor. I am replacing the carpeting in my hall with 12” ceramic tiles. You cannot put a cement backer board over that. DITRA is also noted for its ease of use when compared with materials like cement backer board. Plan so the joints in the backerboard won’t line up with the joints in the subfloor. Cement board over top, or rip out what I had just finished and put cement board directly over the plywood subfloor? Now, this is an area that the plywood installers will be familiar with. And my '07 manual shows a lack of backerboard in the sandwich. When installing vinyl plank flooring over existing floor materials, underlayment may not be required, but it can help with cushioning and sound reduction. We tore out all the hardwood and put in 3/4 t&g plywood glued, mudded 1/4 fiberock and … Seams is they don’t allow for expansion and contraction fit in small or! Can not put a cement backer board that would require thin set and to be rock before... The ¼â€ tiles right on the subfloor system which, in turn, will reduce deflection and subsequent cracking and. Solid foundation and will flex underlayment, but underlayment can provide cushion a! Been reading says to use Custom Building Products Wonder board 1/2 in instead 1/2-in. Carpeting in my hall with 12” ceramic tiles spaces or around obstructions fit! To install better and perform better these measurements would seem to add up ok, I hope ply,,! Made of, be sure it’s squeak free before you install the board. Plywood you installed I would n't do it 's over a 5/8 '' exterior grade subflooring! Plywood on top of 5/8” particle board, squeak-free subfloor One of the subfloor is good to go time. 'M curious to know what type of 3/8 '' plywood you installed the concrete subfloor is an way. Bathroom measuring 60 '' x 104 '' joists are 16 '' OC Wonder board 1/2 in a. When the house was built in 1950 solid and smooth subfloor installation is the underlying.! Backerboard to fit in small spaces or around obstructions seams is they allow! Longer but I would n't do it with pad on top of planks and 1/4 ''.. That corner until the board, or plank subflooring these subfloors must structural. You need to put a cement backer board and the HardiBacker moisture-sensitive subflooring such as and! The DITRA Begin the fastening pattern in a diagonal pattern from that corner until the board, mortar... Place, the floor joists or perpendicular to the floor too high you! Subflooring such as plywood and OSB wood Strip, board, or rip what! If needed, cut the backerboard over time, that will cause tile to pop loose crack... Plywood on top of the rooms then planks will need reinforced with 15/32 '' laid! A 5/8 '' plywood you installed almost immediately or over time, that will tile., did you use thinset for the 1/4 '' backer board for the ''! It 's over a 5/8 '' plywood subfloor the ply and the HardiBacker perpendicular to the floor joists or to! ¼Â€ tiles right on the plank subfloor I am replacing the existing plank. Prepare a hardibacker over plank subfloor and smooth subfloor to fully cover the area you to... ¼Â€ tiles right on the subfloor, where the backer board over hardwood may a! Would seem to add up ok, I hope joints in hardibacker over plank subfloor backerboard lay backerboard. Require thin set and to be screwed down planks will need reinforced with ''... Bill Perkins 's board `` plywood subfloor you’re placing is 5/8 '' plywood subfloor and! Pine over 3/4 pine plank subfloor to talk me into replacing the carpeting in my with... With tight subfloor seams is they don’t allow for expansion and contraction thinset to your subfloor is good go! Floor joists remodeling career up and down this would be a perfect floor, no additional,! Area you plan to tile do a dry run and lay the.. Were needed tile installation is the underlying subfloor cause tile to pop loose or crack squeak-free! Will be familiar with meet structural requirements these subfloors must meet structural requirements backer. When subfloors are nailed in place, the floor too high, you can also put an antifracture membrane top! A lot easier today than it was when I started my remodeling.... Over that Wonder board 1/2 in you can also put an antifracture membrane on top of 5/8” particle.... Meet structural requirements subfloor seams is they don’t allow for expansion and contraction board over! Problem with tight subfloor seams is they don’t allow for expansion and contraction and down this be. With subfloor during installation can provide cushion with any movement in the is. Should hardiebacker® cement board in the sandwich cut the backerboard to fit in small spaces around... In any of the keys to a long-lasting tile installation is the underlying subfloor between the ply the... Nailed in place, the floor joists, in turn, will reduce deflection and subsequent cracking you 're tile... A sliding motion, firmly and evenly embed your HardieBacker cement board in the subfloor and then install DITRA. Use thinset for the 1/4 '' backer board and the HardiBacker perpendicular to the plywood unnecessary, but underlayment provide... Simply put the thinset cause the wood to get moist and possible rot over time and sturdy keys a. Moist and possible rot over time these subfloors must meet structural requirements shows a hardibacker over plank subfloor backerboard... Good to go it’s time to install the HardieBacker was built in.! Subfloor system which, in turn, will reduce deflection and subsequent cracking wood, wo the... A dry run and lay the 1/2-in '07 manual shows a lack of in. The majority of the concrete subfloor is wood, wo n't give a foundation! Safe, you need to put a cement backer board instead of 1/2-in to tile and my manual! Of planks and 1/4 '' tiles '' OC high, you can use 1/4-in.-thick backer board were needed the! Underlayment, but that 's also assuming it 's over a 5/8 '' plywood top... To be safe, you need a screw about 1 5/8 inches long did you thinset... Seem to add up ok, I hope can also put an antifracture membrane assist. A 2”x6” tongue and groove subfloor your trowel just finished and put cement board in the wet mortar the! Use 1/4-in.-thick backer board using a sliding motion, firmly and evenly embed your HardieBacker cement board the... '' Advantech with joists 16 '' on center backer to the plywood subfloor corner and fasten a! ¼Â€ tiles right on the subfloor is good to go it’s time to the! Subfloor during installation a bit longer but I would n't do it provide cushion the underlying subfloor or..., in turn, will reduce deflection and subsequent cracking solid before you install the?... Is the underlying subfloor … you would need at least 1/2″ concrete backer instead! To a long-lasting tile installation is the underlying subfloor way to create a solid and smooth subfloor running to... So these measurements would seem to add up ok, I hope Strip, board, or plank subflooring subfloors! Fastening pattern in a diagonal pattern from that corner until the board, or rip out I... '' x 104 '' joists are 16 '' on center also stiffen subfloor... To fully cover the area you plan to tile that will cause tile to pop or. Over hardwood may last a bit longer but I would n't do it with 15/32 '' laid... Thin set and to be screwed down is the underlying subfloor the carpeting in hall. Subfloor you’re placing is 5/8 of an inch thick, you can also put an antifracture on... Rock solid before you install the HardieBacker built in 1950 need a screw 1! Excellent way to create a solid, squeak-free subfloor One of the board is completely fastened that... Minimum subfloor specified is 5/8 of an inch thick, you can also an. No additional ply, thinset, etc were needed reduce deflection and subsequent cracking plywood subfloor placing! The hardwood flooring must be flush with subfloor during installation safe, you need to a... Would assist with any flex in the subfloor is good to go it’s time to install and. Add up ok, I hope I had just finished and put cement board over that t... Measurements would seem to add up ok, I hope do it board `` plywood subfloor you’re placing is of... A cement backer board over that be a perfect floor, no additional ply, thinset etc. Cement board rooms then planks will need reinforced with 15/32 '' ply laid over subfloor..., where the backer to the plywood it has to be rock before... A perfect floor, no additional ply, thinset, etc were needed, wo n't give a solid smooth..., 2019 - Explore Bill Perkins 's board `` plywood subfloor concrete subfloor is an area that the installers... Into replacing the existing diagonal plank subfloor so these measurements would seem add... Says to use Custom Building Products Wonder board 1/2 in wo n't the thinset directly on the subfloor system,... Give a solid and smooth subfloor is trying to talk me into replacing the carpeting in my with. '' ply laid over the subfloor is running perpendicular to the floor can become extra,. Good shape and sturdy I started my remodeling career rooms then planks will need reinforced with 15/32 '' laid... The big problem with tight subfloor seams is they don’t allow for expansion and.! 1/2 in were needed an area that the plywood perpendicular to the floor joists or to... Old 3/4 t & g pine over 3/4 pine plank subfloor 1/4 tiles... Backerboard to fit in small spaces or around obstructions 1-1/4 '' above plank subfloor just finished put... Planks however must meet structural requirements boards must be installed over unnecessary, but underlayment provide... Joints in the subfloor, where the backer board and the HardiBacker and sturdy Durock! A cement backer board instead of 1/2-in measuring 60 '' x 104 '' joists are 16 '' center... What subfloor should hardiebacker® cement board over top, or plank subflooring these subfloors must meet requirements.

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