If the current subfloor has tongue-and-groove hardwood planks, check to see if it is attached directly to the joists or if it’s on top of another subfloor. 4. 3/4-in. A newer, easier, method is to lay down a "floating" subfloor made with special tongue-and-groove panels of OSB adhered to a base layer of plastic or rigid foam insulation. Can we calculate mean of absolute value of a random variable analytically? Single layer flooring panel for use under tile, hardwood flooring, and carpet and pad floor coverings. So a few things: first of all, tiling over a hardwood floor is just a bad idea. How are states (Texas + many others) allowed to be suing other states? The tongue and groove is 3/4"x 3 3/4" and run perpendicular to the … House is mid 50's ranch. is it possible to read and play a piece that's written in Gflat (6 flats) by substituting those for one sharp, thus in key G? Then, 1/2" plywood under the shower pan area, and the pan over that. Traditionally at 3/4" x 4' x 8', this panel cuts and installs with standard carpetry tool and equipment. 3: Fasten Hardiebacker 1/4″ board with corrosion resistant … I skipped it because I used the liquid nails and needed a good surface for it to bond to. My experience is no, too much bounce. drywall screws spaced every 4 in. This should be followed by a second layer of 15/32-inch-thick plywood installed with a … Levelling? Working in a 15 square foot area, apply a layer of thinset over the tongue and groove floor using a trowel. When should 'a' and 'an' be written in a list containing both? My question would be how much "give" does the 2" x 6" subfloor have when the backerboard is laded over it and you are standing between the joists? The subfloor is 3/4" tongue and groove plywood. 4. MOSFET blowing when soft starting a motor. The older sections of subfloor were a bit springy in spots so I nailed some 2x4s flat from below, putting a nail into each piece of 2x6 along the way. This allowed the tiles to fit in the same amount of space as the floorboards they replaced. How to prevent guerrilla warfare from existing. Underlayment is generally an exterior grade product with square edges and one good side. *Before laying the tiles, skirting boards or shoe moldings were to be removed, and replaced after the tiles were laid. Sub floor and underlayment are two different products. Why don’t you capture more territory in Go? Right now, I have 3/4 TG hardwood, which is not in the best shape, over a 2.5" wide x 3/4" inch think plank subfloor, which runs perpendicular to the joists (2x10, 16 oc). If you do not have tongue and groove installed as your primary subfloor no tile installation will survive for very long. They didn't have deck screws back then or cement board (they poured concrete). Backer Board and the ¼” tiles right on the subfloor. So you can skip the vapor barrier if using ply underlayment in some cases, though its always better to use a vapor barrier anyway. Using green joists. Failure to do so will likely result in backerboard, tiles and grout cracking or breaking as they are not designed to "give" at all. Subfloor with USG Durock™ Brand EXG Concrete Repair Patch. I don’t think I can thin set over those … A mud sub floor over wire mesh and felt is the only way to ensure a proper foundation. This gets the height close to matching up with the hard wood flooring in my entry way. plywood to establish a flat surface and separate the two hardwood surfaces to avoid the expansion and contraction differences between the two hardwoods. It is a standard carpet with pad on top of 5/8” particle board. I feel like I'm looking at pictures of my house when looking at yours. Right now, I have 3/4 TG hardwood, which is not in the best shape, over a 2.5" wide x 3/4" inch think plank subfloor, which runs perpendicular to the joists (2x10, 16 oc). It is assumed for this repair that there is no access to the bottom of the panel. This … If you plan to tile, you want the floor as rigid as possible or you will have issue with the tile and/or the grout later Installation Chipboard is faster to install as it has tongue and groove. (My hall is 3’5” wide and I am thinking that it would not be a good idea to only have a 5” wide piece but to instead use 2 wider sizes). Finally, if you end up with a floor that is slightly higher than the hardwood in the adjacent room, have no concerns. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Thank you for your question, it is one that gets posed to flooring associates in my home store often. They are solid, but not super tight together due to the age of the house. This is how they did it during Victorian times when plywood didn't exist: If the tiles were to be laid over an existing wooden floor, the floor boards had to be pulled up, sawn into short lengths and fitted between the joists. The type of OSB used for subfloors generally is made with tongue-and-groove edges (T & G). Then I used liquid nails and 1/2" ply screwed down to the 2x6, then 1/4" backer board thinset and screwed to the ply. 1. 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. Either install 1/2-3/4" t&g ply over it (glued & nailed), or cut it out and install new t&g 3/4 subfloor, glued and nailed. Installation Chipboard is faster to install as it has tongue and groove. I have 7/8 inch thick by 5 inch wide pine tongue and groove boards as a subfloor. How to repair/replace old tongue and groove plank subfloor in bathroom? If the current subfloor has tongue-and-groove hardwood planks, check to see if it is attached directly to the joists or if it’s on top of another subfloor. Some local codes … Concrete filled in the spaces and made the base flush with the upper face of the joists, and created a level surface finished within 1" of the finished floor line. I quite literally did this exact same thing a few years ago. Also consider your floor joist width and span. Discoloration or staining may occur due to The subfloor shall be APA Span-Rated Plywood or OSB with an Exposure 1 classification or better with tongue and groove or back blocked at the unsupported edges. My question is how should I go about laying tile over this? For subflooring, you use tongue and groove plywood. rev 2020.12.10.38158, The best answers are voted up and rise to the top, Home Improvement Stack Exchange works best with JavaScript enabled, 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, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. Here's a vapor permeability rating chart: thanks for the tips. If you stand between two floor joists and you can see that there is give in the floor, lay a second sub-floor that is not tongue and groove. The subfloor is tongue and groove plank laid perpendicular to the joists. The standard subfloor for joists spaced up to 16 inches apart is 23/32-inch T & G sheets. Which is better, AC 17 and disadvantage on attacks against you, or AC 19? Then I got decking screws and screwed the planks down everywhere they were already nailed. The bathroom is small (about 5 ft x 11 ft). The house is build tongue-in-groove OSB floorboards and thats it. No tongue and groove. They are solid, but not super tight together due to the age of the house. Circular motion: is there another vector-based proof for high school students? A layer of cement mortar was then laid on top. So a few things: first of all, tiling over … The tongue and groove are only along the 8 foot edges. I now have 23/32" tongue and groove plywood over 2/12" joist that span 12'. Pulling up tongue-and-groove flooring can be tedious and time-consuming -- more so when the boards are glued -- but it's not a test of carpentry skills. CDX plywood and screw it to the subfloor with 1-5/8 in. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. ... I’m going to use 1/4″ durock over 1″ of subfloor. Tongue and groove tile: GrannyD: Tile Forum/Advice Board: 5: 02-12-2008 12:30 PM: Plyood over 2x6 tongue and groove for ceramic tile: Santa Cruz Remodel: Tile Forum/Advice Board: 3: 12-02-2006 04:03 PM: Tile on tongue and groove subfloor: jpyle: Tile Forum/Advice Board: 14: 04-16-2006 06:07 PM: tile help on 1x4 tongue & groove … He screwed down the 1/2 inch durock … Thanks for contributing an answer to Home Improvement Stack Exchange! Tongue-and-groove edges on many premium floor panels, such as Weyerhaeuser’s Edge Gold ® OSB panels, are designed to self-gap. Asking for help, clarification, or responding to other answers. In these cases, follow the manufacturer's minimum requirements. The Tile Council of North America (TCNA) calls for a subfloor of 19/32-inch tongue-and-groove plywood to be installed over wood joists spaced 16 inches on center, with a 1/8-inch gap between sheets. For my floor, my plan is to put down a layer of rigid foam over the slab. I have screwed and cemented 1/4 durock on … Unfortunately, they don't have no photos that I've been able to find on the web of how the victorians did it, only a description. If I start with ply on the subfloor, do I need to use tar paper underneath that or should I use some self-leveler before laying down the ply (or do you do this on top of the plywood?). @tbox I realized I forgot a step, edited! That isn't a T&G subfloor that is level with your hardwood, that is a tongue and groove wood floor of some sort that was tiled over. Ideally, I would tear out the existing finish flooring, screw down the existing plank subfloor where loose, repair the plank subfloor … In this question, that's undetermined. So you just glued the ply to the subfloor without any vapor barrier? Tongue-and-groove edges on many premium floor panels, … Do I need mortar between 1x6 deck boards and cement board? Underlayment? That means that the shower pan will sit at exactly the same level it used to (the 2x6 first layer, and 3/4 inch above that), and the rest of the flooring will be the 3/4 inch above the base that it was before, plus the thickness of the tile and mortar. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. That isn't a T&G subfloor that is level with your hardwood, that is a tongue and groove wood floor of some sort that was tiled over. Alternatively, you should be able to measure the joists' spacing and use decking screws to screw down the subfloor to the joists (every 6"- 12" down the length). Two questions: 1) Should I put down that vapor barrier you mentioned … In a bathroom, you will have to put down half an inch to 3/4 of an inch of plywood if there's going to be a tub. The main floor is actually the second floor of the house so it's built from 3/4 inch tongue and groove plywood over 2 by 12 yellow pine resting on some steel beams because I have a 20 foot span over the Crawlspace where the Top Secret Tornado Bunker is to be located then a 27 foot span for the bottom level which is a workshop, 3 car garage, storage room and bathroom. Planks for subflooring must be run at a 45 degree angle to minimize the effects of cupping of the subfloor planks when tongue and groove finish flooring is used. Making statements based on opinion; back them up with references or personal experience. Then taped/thinset the seams of the backer board. http://community.homedepot.com/t5/Install-Replace/install-bathroom-tile/m-p/1455/highlight/true#M241, http://community.homedepot.com/t5/Build-Remodel/Ceramic-TIle-on-Bathroom-Floor/m-p/12927/highlight/true#M563, http://community.homedepot.com/t5/Build-Remodel/bath-tile-floor-and-wall-anyone-use-SnapStone-and-or-Simplemat/m-p/1431/thread-id/92/message-uid/1431/highlight/true. My taping job was not the best so I had to grind down a few high spots at the seams. OSB came into use as a subfloor material in the 1970s. Resilient Flooring Joist Minimum Spacing Subfloor … My biggest problem is that I can't get underneath my house to add any floor joists so I'm hoping that the way it currently is will be ok. No problem. TONGUE AND GROOVE REPAIR LIMITATION USG permits 10% of the tongue and groove along the long sides of the panels to be damaged or Did COVID-19 take the lives of 3,100 Americans in a single day, making it the third deadliest day in American history? This is an old rowhouse in Washington, DC, and the subfloor is the original tongue and groove planks (about 3/4 inch) with some 23/32 plywood patches. I am replacing the carpeting in my hall with 12” ceramic tiles. Depends on how much give there is in the floor. Your subfloor will be under your hardwood. Screws are needed to fix down the new sub-floor. it's a crawlspace underneath but the posts and footers are all good (I've been down there way too much. The standard subfloor for joists spaced up to 16 inches apart is 23/32-inch T & G sheets. Depends on how much give there is in the floor. I'm on my phone so I can't look it up right now, but I think it's due to the glue in the ply. 1/2 inch Dur-rock over the rest of the floor, and tile flooring over that. Girlfriend's cat hisses and swipes at me - can I get it to like me despite that? If you stand between two floor joists and you can see that there is give in the floor, lay a second sub-floor that is not tongue and groove. This eliminated having to cut the outer tiles to fit exactly, and resulted in a neater appearance. 40 year old home, a few creaky spots here and there, but pretty good over all. If you … The rest of the floors are 3/4" oak as you can see in the pictures. Bathroom with 2x10 joists spaced up to 16 inches apart is 23/32-inch T & G you. You need a valid visa to move out of the subfloor is tongue and durock over tongue and groove subfloor solid flooring. Tongue-In-Groove OSB floorboards and thats it with standard carpetry tool and equipment visa to move out of the are. 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