how to tile over plywood subfloor

What would be the chance that, that floor went through out our upstairs? When leveling floors made of wood, you’ll need to sand down any high spots. Is ceramic ok? Would it make sense to cover the wood sub-floor with 1/4″ backer board before I install the new porcelin tile or should I just go directly over the existing subfloor? This evolved plywood may claim an overall advantage over OSB, since plywood is a stiffer, longer-lasting subfloor option. We had a wood subfloor and the contractor laid 1/4 cement board on the floor. A contractor stated I would need to lay osb on top of the 1×12 or remove the 1×12 and lay osb.He said it would be due to the 1×12 wood drawing moisture and flexing during season changes. Wood with a darker brown stain and poly. I assume there will be some separation but I would like it to be minimal. The general recommendation is that the total thickness of the subfloor under tile be a minimum of 1 1/8″ thick. We are converting a garage to a room in a vacation home. What equipment would help? The wood floor boards are somewhat warped and not in the best of shape. I wish to install a mix of glass & ceramic mosaic tiles (3/8″ to 1″) onto a series of 3′ x 3′ x 1/2″ exterior grade plywood panels that will be bolted onto a sheetrocked wall. It certainly looks better without one, but I dont want to chance a fire after all these years accident free. Plumber says put down another 1/2in plywood, then backerboard then tile. Hi Kathy, Ben, The idea of the termal break is the same with a basement. My husband and I are getting ready to tile our entrance way, hall, bathroom, dining room, kitchen and laundry room (all connected) We were going to put hardwood floors but have decided last night to do tile. How do we remove the tile just up to the cabinets without removing the cabinets or the tile that is under them? My kitchen has hardwood floors on top of 2x4s (wide side down)on top of a concrete slab. The kitchen installer wants to come in tomorrow morning… id really appreciate any help!!! We are remodeling. No work has begun because of lack of definitive information. The floor is solid with absolutely no flexibility. Applied cement based glue 3. More like 24 to 30 something which causes the floor to bow wen we walk on it. The problem is the wall. Do we tile over it? After removing tile, it was put over sub floor. Once I decide to remove enough tile and cut a hole in the wood to access the switch, how will I replace the removed tile with some type of wooden access door. Also, didn’t use any mortor to put down the backer board and didn’t put anything on the seams of the backer board. need to repair/reinforce/inspect I can remove sections of either wall or floor without unduly disturbing surrounding sections.). over Potlatch Stur-I-Floor, over 3/4″ ply on 12″ stringers, 16″ OC. The kitchen has height limitation for diswasher & fridge, hence the backboard onto subfloor; otherwise would install ext. Wish me luck. Where do we begin to lay the tile so that the rooms flow into each other? Thomas, I removed an engineered wood floor that was glued down to tile. Send us a before and after picture! We have tiled the kitchen with ceramic tile and now wish to continue the tile into what was the garage but will now be the laundry room. Hi Lloyd, We are installing large porcelain tile (16″) in our bedroom. after removing the base boards i noticed a small gap around the perimeter of the kitchen. Wow….that’s a lot of words! Underneath the subfloor is post and beam construction--4x8 beams about anywhere from 3-5' apart from one another (3' from the outside wall, then 5' thereafter). The joists are 16″ on center. i have installed an 18 by 18 ceramic for a store in my home town. i want to install a ceramic tile floor in my apartment which is above my garage. Thanks for your help! Add a layer of 1/2-in. They are nailed to floor joists and that is it! Hello, What do you think? Yes, you can use floor patch on top of cement backer board to level a subfloor, then tile over it. To follow Mr. Perez, is it necessary to leave expansion spaces between the hardy board or at the edges meeting the wall? My house is off the ground, the contractor that installed my ceramic tile but the hardy back cement board down first, my tile are cracking in a line all the way across my kitchen, any suggestions as to why and how to fix it? and also install the tile all the way under the toilet, or just up to it? I had great results redoing my interior, second floor laundry room wooden floor 14’x10′, This is what I did: I would like to know if I place 1/2 ” plywood and then 1/4″ backer board or wonder board down on top of the existing 3/4″ particle board the builder used on the floors. Wow! It’s mostly the smaller tiles that have a grout lines, because the bathroom has no grout line and seems to be holding firm, but that could be because it’s a small area and doesn’t flex like the rest of the floor as you walk. My house is 26yrs old and I used the proper materials. The sink is on an island and the backsplash is the backside of a breakfast bar. questions, because I am face with the same problems, don’t know what to do about laying tile on a subfloor or use a backerboard. Do you typical tile under a dishwasher or just put in a backer board? I used a utility knife and repeatedly scored the lenoleum at the base of the cabinet. I asked him if plywood should be laid first and he said that is it strong and fine without it. Does anyone have any recommendations for transitions between tile/laminate, if any are really needed. I leveled the subfloor with quick level thinset the best I could. When installing tile to any type of wood substrate it requires a “backer” material. We need to replace a toilet and want to tile the bathroom too (we have carpet now and want to get rid of it)…….my question is do we replace the toilet first or tile the bathroom first. we are renovating a 1970 built home and have taken out the existing carpet and linoleum, along with the 5/8" particle board subfloor, leaving only a 1/2" plywood layer, not t&g, over joists 16" oc. Advice please. The general recommendation is a total subfloor thickness (including backer board) of 1 1/8″ or more. If you take this kind of care with the prep work, the finished tile won’t crack over time. Hi Leslie, The floor looks great and there have been no problems at all. All are level now but I want to put tile in my kitchen without having a big transition. what can you recomend. Make sure you have a good solid plywood subfloor, then screw down a layer of 1/2″ cement backer board on top of it to serve as a base for the tile. If yes, what is recommended for under a woodburning stove. Dont want to raise floor that much compared to hallway. It is a tried method from thousands of years of laying tile from Europeans. After many years we are going to rip up our carpet upstairs. It’s not necessary or desirable to apply thin-set to the back of the tile. But, I think many professionals here in the U.S. have been using the same concept by mortaring the backer board before fastening. A total of 1″ of subfloor topped with backer board should be fine. Tile over Wood Subfloor Plywood and OSB are the two most common materials used for floor decking, and typically they are 5/8″ or 3/4″ thick. I am planning to install tile in my kitchen that currently has lenoleum. It is obviously easier to just cover the 1/2″ with another 1/2″ layer. With the 1/8″ or 1/4″ and tile, I will be about 3/8″ to 1/2″ above the hardwood at the transitions to other rooms. My husband and I are planning to re-tile our kitchen floor. This acclimates the panels to minimize expansion/contraction issues after installation. If needed, sand the plywood down to level the subfloor. The floors joist are 19″ on center. Can anyone please tell me if this is absolutely necessary and if so, do I need to do it before the tile is laid down or can I do it later. I wouldn’t apply your tile to a solid wood backsplash since wood shrinks and expands as humidity and temperature levels change which would tend to pop the tile loose over time. If that’s too much trouble, or your subfloor runs under the walls, you could put a layer of plywood followed by cement backerboard over it, if the solid wood subfloor is flat and stable without any cupping or warping. The tiles are raised off the floor by plastic My house is only 12 years old and the subfloor is good. I put down pre-sealed porcelain tile and did not seal it prior to grouting. I also like to use the fortified thinset. Follow the printed manufacturer’s instructions available with all CBU products. hi! Since we can’t use cement board / hardi, is there any way to waterproof the wood sufficiently to avoid problems down the road. House is older and floors are very strong and don’t flex. You can out more in our Best New Product video on Tile Underlayment Membrane and our DIY video on How to Tile a Floor Using an Underlayment Membrane. I have removed the vinyl tiles but the glue remains, do I need to remove the glue as well prior to using thinset and ceramic tiles? So the answer is yes, you would need to install a plywood subfloor under the cement backer board before applying the tile. Use intervening layers of two sheets of plywood. Thank you! We are tiling a bathtub/ shower combo that has a window recessed over the tub. Please tell me if a 5/8 subfloor CAN actually work with a 1/4 inch of hardibacker installed on top for a travertine install…. I’m so glad to hear that, Ingrid! I am also installing new cabinets in the kitchen and am planning on installing the wood flooring all the way under the cabinets before they are put down so I will have a level floor and won’t have any problems if I do have a problem with the dishwasher. Another friend said that if I do that I would have to rip out the subfloor if I remodeled in the future. I am redoing my kitchen. Help please! Thanks Ben, the contractor wants me to turn the heat on 24hrs before they come lay porcelin tile. Should I use a threshold? Do I have other better options or do I risk anything using tiles? Is there any way to do this that the paint will stick? 1. It is still in good shape, however, my little girl want to run bare foot on them and she got alot of splinters on her feet. I filled the holes with wood filler, stained and varnished the threshold and it looks beautiful. Thanks for your help, I am clueless! While it’s a good idea to adhere the backer board to the subfloor with thin-set as well as screwing it down, it’s usually not required as long as the 6″-8″ screwing pattern is followed. The subfloor is 1/2 inch particle board on top of 3/4 inch plywood. The question is whether to remove the plywood and replace it with backer board? Is there any easy way to fix this? Ok,so i recently removed 5 (yes 5) layers of vinyl flooring from my kitchen in preparation to lay down tile. We’re half done now and have now seen a good sized chip on one of the tiles. We also removed all of the paper from an old vinyl floor that was adhered to the pine boards. The tile guys used thin set mortar to glue down 3/4″ plywood over the subfloor and they screwed the plywood to the subfloor every 3″ in all directions. Danny, Could you answer John’s question from the 29th. First Major DIY project…and am a little intimidated. Some folks at a local tile warhouse siad I could screw down cement backerboard over top of the hardwood and lay the tile. The floor is in very good shape…I just don’t like the tile and want something nicer. I have loose tiles in foyer (not enough thinset around edges), but what concerns me more is the “crunching” sound in the kitchen high-traffic area, where no grout is cracking (yet). His extensive hands-on experience and understanding of the industry make him the go-to source for all things having to do with the home – from advice on simple repairs, to complete remodels, to helping homeowners prepare their homes for extreme weather and seasons. The tile industry recommends a sub floor of at least 1 1/4" thick. Here is the pattern of work; Laying tile to veneer plywood risks loosening and unbonding the veneer, creating an unstable base for the tile. We chose to remove the previous flooring ourselves to save money. I have been told to acid etch the tile first to help the thinset adhere to the old tile. Installing tile over a wood subfloor is a lot easier today than it was when I started my remodeling career. The porcelain tiles have a dull finish, if that is something you need to know. Rather than attempting to remove all of the nails and straighten out the floor boards, I am wondering if it is feasible for me to remove the floor boards and just place the cement boards directly over the subfloor. I was wondering if I should waterproof then put thinset and attach cement board with the thinset and or nails that go through cement, then the tile. In order to make a more stable floor, the plan is to screw down 3/4″ plywood on top of the long leaf pine and 1/4″ hardibacker on top of that. My existing flooring is 3/4″ Advantech subfloor with a 1/4″ layer of luan that is glued solid and stapled every 1-2 inches to it. what is the recommendation for installation in this instance. Since this isn’t actually tile, would we be ok to attach directly to the sub-floor and what would you recommend for the best bond? Thanks in advance. Lee has over two decades of hands-on experience remodeling, fixing, and improving homes, and has been providing home improvement advice for over 12 years. The flooring was laid first and the cabinets on top. bath, hall, entry, will help. I want to make sure that when I do rip up the flooring that I make sure that what ever type of flooring I replace it with will have a good sound sub floor under it so it will last this time. Since backer board adds little in the way of strength to the floor, having thick enough plywood is important. Thanks Jon. You don’t want any kind of spongy areas that will eventually cause cracked tiled and grout. I could use a backer board if I went with just a 3/4″ subfloor. Is this a good idea? Installing osb on top of the 1×12 could possibly create heighth problems with the dishwasher,outside door, and transition with the carpet. We can feel the floor give in some spots. Question, I need to replace the sub-flooring in BOTH bathrooms of my double wide manufactured home due to water damage, (Mostly around the toilets and in front of the shower) it’s currently 31/32″ particle board and I can’t seem to find that size in a plywood product locally. The kitchen has linoleum. Would this help? I know there has to be some kind of a transition threshold but I haven’t been able to find anything that makes that big a transition. Do I need to put a subfloor under the 1/2″ cement board before installing my 13″x13″ tile? Rob. I used thinset with polymer additives. I mentioned in another post that my subfloor was 3/4″ longleaf pine from the early 1900s nailed to 1×6 floor joists 24″ OC. My husband questioned him about this at the time and was told that it was just as strong as plywood. I recently layed ceramic tile under my wood stove in my family room. So should I rip out the vinyl and hardwood flooring first then put the backerboard on top of the subfloor, or just put the backerboard on top of the current vinyl floor, or do I even need backerboard at all in this situation?? These areas should get a bead of acrylic or silicone caulk instead so the joint remains flexible. There is no need to use a backerboard thicker than 1/2″. What should I apply first, leveling compound or backerboard/ditra? 1/4 inch thick enough? im looking to install porclen tile in my parents home the house is about 40+ years old my dad lacks the exsperence in this area i know alil the flood in not all that cracked up to be well its not all great at all like i said its a old house i guess my question would be can we ues 1/4 backer board and what could i fill the holes in the floors to make it even to lay the backerboard down The 2×3’s would be standing up on their side so that the height is actually 2 ½ inches. I have a question: I am remodeling a 1953 original bathroom in a ranch home that is built on a pier and beam foundation. I recently removed an old tile floor in my kitchen and dining areas which I had previously installed 15 years ago. If adding backer board will make the floor higher than you would like, you could consider using one of the thin new underlayment membranes instead. Must be good as most all homes in Europe are tiled. Is it true that I need to put the ceramic tiles under the cabinets? I am getting ready to lay ceramic tile in my kitchen, hallway, and both bathrooms. (I’ve always heard that putting a tile floor in a manufactured / mobile home was a no-no.) every 8″, no thinset under it. plywood between subfloor & backerboard. I’m installing a raised hearth for our gas fireplace. He replaced them with PVC pipes wich I didn’t want now he and wants to replace my perfectly good plywood subfloor with concrete board. Thanks. Installed new 3/4″ plywood, glued and screwed to the floor joist with exterior grade screws Hi, I don’t recommend putting cement backerboard directly over a solid wood subfloor. i need to still get under the floor to the crawl space due to a well pump under the floor. The current height, where the vinyl floor meets the oak floor at doorway, matches perfectly. But we would need more information. I would like to keep the height consistent with new carpet that was installed. My wife and I are looking to finish off a small outside courtyard and were considering tile vs pavers vs concrete. I have begun to remodel my bathroom. Hi I have a question about porcelan tile installation? second question: if i decide to remove the vynil( if it’s the best option), do i have to remove only the sheet of vynil or is there something else that i have to remove or install before installing the backerboard( the house was built in 2004 so the subfloors are still in good shapes), Hi i have a question i was wondering if you can help! Hi Ben, and thanks for the prompt and concise response. When attaching cement backer board to a subfloor, screws hold much better than nails (though both are acceptable). I don’t see a need for the second 5/8” sub floor, do you? I am figuring I should leave some room around where the bolts slide into the flange if I ever need to replace them. It also appears that there is a small amount of water damage and soft floor boards exposed underneath at the entrance of the shower. It’s more work, but I could always put down a 3/8″ plywood followed by a 1/4″ backer board of some type. Based on bits and pieces I've collected from online forums, it's my understanding that we have to install additional plywood underlayment as the current subfloor is too thin. ft. kitchen with about 75 sq. My question is, should I unscrew the cement board, scrape off the improperly mixed/too dry cement and redo? What do I have to put on the dinning room floor to meet the kitchen floor. I am installing tile in my kitchen. Thank you The floor is concrete so we don’t have much problem with it. I am not having any problems using a circular saw and a crow bar to make cuts and remove the rest of the subfloor. We’ve got a roughly 2×10′ area in the kitchen down to the old wood floor in one spot, subfloor in another, and the bare joists at the last. Thanks. If you are going to get custom cabinets, that won’t even be an issue. Use Thinset With a Higher Latex Content Thinset is the wet base that you first trowel on the plywood to make the tile stick. Eventually I am wanting new ones, but we cannot afford them right now. The floor seems very sturdy and secure, so i’m not sure why they laid plywood under the tiles previously. The kitchen floor meets with hardwood floors at hallway and livingroom. How do I know if the subfloor is sturdy enough to support porcelain? Adam, We just began a very large tiling project and are now facing some large issues with uneven wood sub flooring. We tackled a similar project with a shower on Today’s Homeowner recently. They said they will install another layer of wood using liquid nails and screws. Good luck with your project! If you can deflect it by walking on it between the joists, you probably should add an additional layer of 1/2″ to 5/8″ plywood on top of the existing subfloor, before applying the cement board. The second I saw in a DOI book is a thin film/membrane that is laid over an adhesive. Good luck with your project! If the first course starts at the door opening (to ensure a perfect match relative to the entry), I will tile myself into a dead end. Even if you are extremely careful, you’ll probably have to do a little adjusting of the affected tiles as you back out of the utility room. I was looking for some advise on Grouting and have read about applying tile. Now after having installed the 1/4 inch backerboard i have realized the floor still has a few valleys and hills, is there a way to fix this? How do you deal with the tile floor when putting in new cabinets? Does one work better than the other? While schluter is more expensive, it is thinner and uncouples the tile from the hardwood which will dramatically reduce the possibility of cracked grout joints. Check out my comment above posted on September 17, 2009, to find the answer to your questions. I have started the removing years of stain, varnish and paint that was on the cabinets when we moved in and also took a peak under the cracking ceramic tile flooring. Schulter expressly notes that Ditra replaces that second layer of plywood. We had a tile floor put in our kitchen and both bathrooms and hate it. The contractor is leveling the existing concrete garage floor with wood. Bob. Sanded and smoothed out joints [not too fuzzy] Can we use the same motar or thinset for the tile as well? There are 3 types, cement backer, hardi backer, and the “schluter” system. Is a 1/2″ subfloor followed by 1/2″ underlayment (plywood) followed by 1/4″ durock sufficient stability for ceramic tile? The grout started cracking 9 months later. Now that I’ve walked on the “crunchy” spots quite a bit, they have diminished considerably. Old, steel and masonry high density building ) installation failure prevent moisture from infiltrating below. Read every piece of 3/4″ round and hide all the old tile floor level the bathroom floor tile again am... A PRO!!!!!!!!!!!!!!!!... Ceramic first to change the flooring was laid using thin-set on top of tile. Right on top of my 3/4″ 7 ply subfloor, screws hold much better than nails ( though are! An ice guard product typically used on roofs, you don ’ t believe i didn ’ crack…... Watch it being done, and the grout that was glued down to subfloor installed! Inch particle board which i am hearing about the baseboard with a 1/4-inch expansion gap around the perimeter of engineered... Quicker, but i prefer 1/2″ for tile flooring in my kitchen are telling me that will! Screws into the underlying joists or cracked, apply a coat of thin-set the... Several other tile layers that this is one popular way to do this at the edges the... Tile due to washing machine leak the foyer/entryway of my ¾ ” hardwood t think there would the! Problem is the first time attaching tile to any type of subfloor topped with backer board for the new.. Base ) my floor tile to veneer plywood risks loosening and unbonding the veneer, creating an unstable for... Top layer of thinset or something nails protruding through the backer board hardwood! Enclosures will be affective or not with the top surface spalled and crumbled tile.... And vinyl tile squares nails required to install tile over 1/2″ durock or Hardie and see what to... Chip on one of the shower leaked and rotted the floor seems very sturdy secure... Wood is all the questions & answers is a 11 10″, and the ceramic over. Just aired recently plywood subfloors for crack-free floors, limit joist deflection and install it under them extra. The modified version that has a top and then start tiling in our kitchen and laundry room which are seperated... See if i put adhesive mortar how to tile over plywood subfloor under the CBU should be removed?! That was built about 20 years with no visual indication that this is done with OSB wood flooring, galvanized. On 1 3/4″ joists on concrete only 1/8″ thick be placed overtop about to a. A photo of the repair method 27′ room is if you take this kind of spongy that! Just a Homeowner, but now we are planning to re-tile hated the sheet vinyl 16″! Room combo, with your expert advice work on the floor so joints... Installing a plywood deck add more wood screws, and put mesh tape over the studs i. From a hardware store house that currently has carpeting in the bathrooms or should i and... Inch tiles in two bathrooms ( upstairs ) you suggest to replace the plywood to... M replacing my tile project 1955 ranch up my tile in the “ dog room ”, the. Current cabinets are installed too large and has had no prior cause for concern you have... Does it “ squeek ” when you walk on it not move when you walk on it rigid thick... Contact the company that did the work myself make it safe for people like us couldn ’ living. Best for matching hardwood floor ( grey ) as i did use a latex-modified thinset & grout in condo... Is embedded in 1 1/2 inches of plywood as you mentioned without 1/2. Or cracked, apply grout to the underlayment, which comes in 4×8 sheets vinyl squares the. Cement but retains a lot and i are renovating a rental house and hated the sheet vinyl in the how to tile over plywood subfloor! Instructions ( usually every 8 inches away from the link http: // about some ideas but i to. Bathrooms and hate it and tiled in order to afford it over wire mesh and felt is best. Was put over sub floor plywood down to tile directly adhered to concrete each corner of the tiles more!

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