ubc civil engineering masters

Homes settle. And pay close attention to the deflection rating. How can we go about tiling so the porcelain doesn't crack? My block and beam 1940's house had original tongue and groove 3/4 " pinewood floors in the original rooms of the house. I did a lot of vinyl and 1/4" would go over the 3/4 T&G to give us a clean, smooth surface to cover. Rooftop terraces: In the case of roof terraces over residential/ commercial or other spaces as well as roof-covered surfaces, the surface needs to be designed as a flat roof, following the applicable technical rules for roof structures. What is under the joists? Plan the layout of the plywood sheets so the long dimension … nom. 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. The home was built in the 1960s and the subfloor consists of 3/4" thick tongue and groove planks running diagonal to the joists. A new layer of 5/8-inch or 3/4-inch tongue-and-groove plywood subflooring is like adding a new subfloor over the old to create a stiffer, flatter surface for any type of finished flooring. The most important and first thing you would need to do is verify deflection meets acceptable ratings for tile or stone. any leveling of the subfloor must be done prior to installing DITRA-HEAT and DITRA-HEAT-TB. Of if you REALLY insist on being perfect, get down to the joists (yep...open gap in the kitchen where you can fall through to the basement) and then build up from there. Structural plank subflooring: Sufficiently load bearing structural plank subflooring in tongue and groove construction, with the appropriate screws in place, is suited as a substrate for ceramic tiles. Once your subfloor is good to go it’s time to install the DITRA. You can post this on www.thefloorpro.com to see what the flooring professionals make of your dilemma. Screw 4" on center over the whole floor, and into the joists with stainless or coated deck screws. The bright orange uncoupling membrane is instantly recognisable and the range of benefits it provides to an installation makes it easy to see why it’s one of our best sellers. There are many different types of tile, Had enough of stained tiles? I would read it a few times. © 2020 Tile Fix Direct. Sorry, but I am not sure what brand that is or where to get it in your area. I’ll check out the link. If you REALLY want to keep your height down, you can go all the way to the joists and lay new 3/4" tongue and groove sturd-i-floor throughout + DITRA. Mortar screeds: Tiles can be installed on as soon as they are ready to bear weight as opposed to the usual 28 days of curing. plywood to establish a flat surface and separate the two hardwood surfaces to avoid the expansion and contraction differences between the two hardwoods. (16 mm) tongue-and-groove with 1/8" (3 mm) gap between sheets Substrate Preparation verify that subfloor panels are properly fastened to framing members any leveling of the subfloor must be done prior to installing DITRA and DITRA-XL Movement Joints DITRA and DITRA-XL do not eliminate the need for movement joints, including perimeter lay the radiant mat and cover with slc, let dry then tile. The tongue and groove is 3/4"x 3 3/4" and run perpendicular to the joists. Thank you @Super Lumen for providing that info. nom. So a few things: first of all, tiling over a hardwood floor is just a bad idea. It will help protect all ty, It is said that a bad workman blames their tools, so a wise one knows to keep their toolbox happy, More and more people are choosing to install wet rooms in their homes, and why not? See how, where and when to use this durable, easy-to-clean material, See exciting new stoneware looks from Italy’s big ceramic tile and bath show, Goodbye, shag; hello, fab! Bituminous screed (paving grade asphalt): DITRA Matting allows for the installation of ceramic coverings on standard weightbearing, unheated mastic asphalt screeds in indoor areas. It won't matter what you put on top of subfloor if what is underneath is insufficient. Is there a vapour barrier? Install Schluter DITRA Over Wood Subfloors. DITRA matting is one of the most popular under-tile decoupling systems stocked in the UK. Everything else is underlayment. For sub-floors we will consider 18mm thickness tongue and groove with dimensions of 600mm x 2400mm. Treat it as if it was a plywood subfloor with thinner plywood underlayment and decoupling under tile. You will need to know your joists distances. The floor joists are 2x9, 16" on center. A renovated kitchen’s functional new design is light, bright and full of industrial elements the homeowners love, First vinyl records made a comeback, now floors. 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. Need help updating 80's home and all it's honey oak everything, the rabbit hole of engineered wood floors, Fit a fridge and microwave in the kitchen. It works over concrete or wood subfloors to prevent decay. How you go about it will be between you and your architect/contractor. The house was built around 1917. And you still self leveling compound (SLC) to get this smooth/flat. Thanks to the waterproof polyethylene membrane, the matting creates a certified bonded waterproofing assembly with the tile covering. It's what they do. Get a grip on the principles of expansion and contraction, You love its beauty and instant high-quality appeal, but bathroom marble has its drawbacks. the joists were 2x6 on 12 inch centers The cost of doing this could get you into the $4- $5/sf just to deal with the subfloor. This underlayment acts like a shock absorber for your hardwood floors, distributing the load more evenly to prevent noticeable wear and tear. If it is solid 2 x 6's then I would think the damage would be minimal. Even as a Tile Setter I would suggest this option for your scenario. (16 mm) tongue-and-groove with 1/8" (3 mm) gap between sheets Substrate Preparation verify that subfloor panels are properly fastened to framing members any leveling of the subfloor must be done prior to installing DITRA and DITRA-XL Movement Joints DITRA and DITRA-XL do not eliminate the need for movement joints, including perimeter So my house has 2x6 car decking/tongue and groove/whatever-you-want-to-call-it subfloor that I am going to tile over, both in the kitchen and the bathroom. The extra weight often means extra subfloor thickness must be added to prevent sag. Installing sheet vinyl will require an installer to do it...but it still should be cheaper than a DIY tile install that goes wrong. Use the link above (provided by Eastern Tile) with the type of joists you have so carefully measured.You add the thickness of the joists and the LENGTH of the joists. I am installing ceramic tile in a 10 x 10 kitchen with diagonal plank sub floor and tongue & groove hardwood floor. Your subfloor will be under your hardwood. "Installing sheet vinyl will require an installer to do it...but it still should be cheaper than a DIY tile install that goes wrong." That includes the rental of tools and purchase of multiple/thick high-end subfloor grade plywood (this is NOT the $1/sf stuff and you will need more than 3/4" for a proper deflection rating over 20" joists). Hardwood over 1/2", I'm not sure, I think over 5/8" was what builders would do. Need help leveling section of subfloor for tile job. Check with the tile companies to see which membranes they carry. He wants to use it without another underlayment. Tile is installed over DITRA using the thin-bed method in such a way that the mortar becomes mechanically anchored in the square, cutback cavities of t… Once you have that, go lay your new plywood on top of your existing plank subfloor. You are treating this new plywood as your subfloor, you aren't counting the plank subfloor for anything in terms of deflection resistance strength. (16 mm) tongue-and-groove with 1/8" (3 mm) gap between sheets. There's a reason why the contractors did NOT offer a quote. Wet rooms are, At Tile Fix Direct we choose the very best products to suit your every tiling need, so you can be, Know your Ceramic and Porcelain Cement Based Adhesives, The 10 Tiling Tools You Need in Your Toolbox, Product Feature: Kerakoll Green-Pro Matting. What Lies Beneath That Old Linoleum Kitchen Floor? I've been checking around, and the best advice I've received is to use 3/4 Advantech over the original floors, before laying new 3/4" hardwoods. If your joists are 16" on center and you can use 5/8" plywood, you may end up as little as 1/4" higher than your hardwood. Would it be wise to cut a piece of that t/g and see what’s beneath it exactly, or should I be able to see if that’s what’s lying on the joists if I look at it in the basement? Even with a decoupling layer of plywood, there is no way to make sure there aren't big voids or uneven areas in the wood floor that will bounce and crack your tile. Don't remove the tongue and groove subfloor please. Adding support of jacking up the joists from below is a good option. If it is attached to the joists, you can use the 1 ⁄ 4 -in. Could we just replace the existing 1/4 plywood or should we maybe lay down 1/2 plywood, then tile? Hi RFD, I've been looking for a tiler but unfortunately am falling short on time waiting for them to quote and the lack of availability. Tile Fix Direct, HTW, 1 Hollybush Lane, Aldershot, GU11 2PX, What Are The Differences Between Cement Based Adhesives? The planks are 7" wide and 3/4" thick, tongue and groove with 1/4" gaps. Yes, it would have been better to take a straight edge before laying the plywood. Understanding this industry, I'd rather not take an uninformed chance and stumble to the kitchen one morning. The newest versions are stunning and can look like tile...without being tile. The matting significantly improves load distribution, by transferring the load directly to the substrate. A floor being laid over top the old hardwood must have some form of barrier. For the last 40 years CDX tongue and grooved plywood has been the most commonly used exterior structural subfloor material used in homes. I am preparing to tile my kitchen floor and have it stripped down to the plank subfloor. The synthetic base separates the floor from concrete dampness (not floods or heavy water), and the OSB top creates a flat subfloor that can be nailed into or simply covered with a variety of flooring materials. And don't forget the decoupling membrane. And then click enter. You can drill a hole to see what's below. The very thing you hate about the current tile floor (cracking/lifting) is the very thing you are going to fix. Tongue-and-groove edges on many premium floor panels, such as Weyerhaeuser’s Edge Gold ® OSB panels, are designed to self-gap. So I will have 1” depth to work with and he was honest in letting me know that even after the new tile is laid, the floors won‘t be 100% flush, and will require a transition piece. Tiling can begin straight after the DITRA matting is installed. We saw that the t/g was basically flush with the living room hardwood, so we won't be able to avoid adding some height, though we'd like to keep it as low as possible without compromising strength. Mix up modified thin-set. This plywood is made from thin sheets of (usually southern pine) veneer that are cross-laminated and glued together forming 4" x 8" sheets that are either 5/8" or 3/4" thick. Each joist construction has different requirements when tiles are to be added. Ditra or Schluter have one. However, I just really have my heart set on a particular tile after looking at lots of flooring choices and styles for the last year. (16 mm) tongue-and-groove with 1/8" (3 mm) gap between sheets. Whew! You will come up with a basic suggestions. Screw down well. 2. I've seen some veneers glued together, on a subsurface that looked like cardboard, and others with a subsurface of solid strips, crossed in perpendicular layers and glued. Older homes were not built with plywood subfloor, they used 2 x 6's. A mud sub floor over wire mesh and felt is the only way to ensure a proper foundation. more like 20” or so. I saw this years back, and the supplier was extremely fortunate, the producer was adequately insured and also professionally handled the warranty issues. Schluter®-DITRA is a polyethylene membrane with a grid structure of square cavities, each cut back in a dovetail configuration, and an anchoring fleece laminated to the underside. The boards are laid lengthwise, perpendicular, over joists and joined together. The V-groove on shiplap will be about 1/2 the thickness of the board, or about 5/16" on a 3/4" thick board. How to Safely Lift Tongue & Groove Flooring. This link may help you get started. Once the barrier is in place, now you can go ahead and treat the hardwood as a "subfloor". https://www.johnbridge.com/vbulletin/deflecto.pl. 1. Look no further than Lithofin Stain-Stop. Learn more about exposing, restoring and enjoying them, Kitchen of the Week: Taking Over a Hallway to Add Needed Space, Look What Tile Can Do Now: 9 Versatile New Finishes, Renovated Kitchen Reclaims Historic Charm in an 1810 Farmhouse, Live Boldly: Put the Floor on the Ceiling, Why Marble Might Be Wrong for Your Bathroom, What to Know About Engineered Wood Floors. Masonry / mixed Substrates: Using the Matting stresses and cracks will not transfer to the tile covering. This should be followed by a second layer of 15/32-inch-thick plywood installed with a … The subfloor is 3/4 tongue and groove plywood. I would add solid vinyl tiles to that statement. 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. DITRA Matting neutralises the stress occurring in the tile covering and prevents the penetration of moisture. Ditra is a decoupler, meaning (in this case) there’s no chemical bond between the tile and the subfloor. It reduces noise and helps to insulate your floor to keep it—and the entire room—warm. Add plywood subfloor over it to get the deflection low enough to not crack your tile. This may make Ditra a better choice if moisture from below is a concern, such as with some outdoor applications or installations over concrete. I have 3/4" OSB subfloor that I want to tile over. The matting ensures equalisation of vapour pressure, by keeping the interconnected air channels between the cavities on the underside of the matting open, allowing any moisture trapped in the substrate to evaporate. Substrate Preparation verify that subfloor panels are properly fastened to framing members. Cut DITRA matting to size if required, then embed the anchoring fleece on the underside of the matting into the adhesive so that its entire surface is strongly bonded. and i was gonna go ahead and screw down the 1/4 inch hardibacker to the 3/4 tongue and groove. I do not know if it was poorly constructed or if this naturally happened over time, but the tongues and grooves of the planks across much of … If you have a plywood sub-floor I'd guess that you'll remove a ply or two in various places when trying to remove the Ditra later on. A V-groove on a tounge and groove board will always be about 1/3 the thickness of the board, or about 3/16" on a 3/4" thick board. I know that I need to rip up the current plywood and read online that OSB or plywood can be installed over a 6" tongue-and-groove plank substrate followed by Ditra … The anchoring fleece is embedded in thin-set mortar to provide a mechanical bond to the substrate. DITRA matting is available to purchase online at Tile Fix Direct in 1m lengths, in full 30m rolls or as a full pallet of 6 rolls. I kind of thought that could have been flooring, but hubby and I weren’t sure. The DITRA Matting can also help with waterproofing. Shalom, Fletcher. Also has oak floors except in kitchen and bathrooms on top of the 2x6. or plywood subfloor Areas of Application over any even and structurally sound OSB or ... installation system for ceramic and stone tile over wood substrates. You need a decoupling membrane once the plywood is figured out. ... then 3/4″ tongue and groove Drymax. Movement Joints DITRA-HEAT and DITRA-HEAT-DUO do not Viewed 9k times 8. Movement Joints DITRA-HEAT and DITRA-HEAT-TB do not Below the kitchen is my basement. Thank you @Creative Tile Eastern CT. I’ve lived with sheet vinyl previously and had this not been my forever home, I would have probably gone that route. ... possibly using Ditra as a waterproofing underlayment over exterior plywood. You could have shimmed the areas that needed it and then kept going. Demo your tile. Through uncoupling the floor covering from the substrate, DITRA matting can stop stress cracks being transferred from the substrate to the surface covering. It does NOT help with deflection ratings. Substrate Preparation verify that subfloor panels are properly fastened to framing members. I have a 2x6 tongue groove subfloor over beams on posts in a 1950's ranch style home in northern California. DITRA matting is specifically designed for tile and natural stone installations. 3/4" tongue and groove over 16" floor joists is very strong. The Matting means the tensions occurring (in the floor and wall area) between the concrete and the tile covering are absorbed. It wasn't worth their time to quote it because they knew you wouldn't accept it. Floating wood floor over concrete in garage? The main concern is that the center of the floor is high running with the T&G from one end to … I believe this to be good advice, but is Advantech needed over regular plywood? The grooves you are referring to actually look a little shallower to me than they could be. DITRA Matting neutralises the stress occurring in the tile covering and prevents the penetration of moisture. Substrates on which the matting can be installed must always be checked for their suitability to make sure they are level, load-bearing, clean and compatible with the materials to be used. That's DEFINITELY a lot to take in! In essence you will be learning and then applying the entire 'tiling business' do get this done. Everything needs to be done from underneath. Remove everything down to the subfloor. Could I use Ditra over an OSB subfloor… Engineered flooring can be a solid option, but PLEASE perform thorough due diligence to determine the company's history with the product, warranty details, references, etcetera. 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. Screws are needed to fix down the new sub-floor. minimum subfloor thickness – 19/32", 5/8" nom. Cement? (19 mm) tongue-and-groove • minimum underlayment thickness – 11/32", 3/8" nom. My parents home ( and older homes I've seen) has this throughout. That will actually end up lower than your hardwood. If other commenters are not familiar with this link they also may find it is worth checking out. Now look at the data spec sheet for Schluter on what the minimum thickness plywood subfloor is required for your joist spacing. A lot of new homes do this and it works very well, no bounce or deflection noticed. Concrete and pre-stressed concrete may build up tension because of deflection. @Izzy Mn, is there a way for me to be absolutely certain that this is a sub floor and not not flooring above something else? Concrete: Concrete is subject to deformation processes due to shrinkage. And then you have to BUILD UP the subfloor to ensure you have the right THICKNESS to achieve the right DEFLECTION RATING. That makes me feel better in knowing what my options are. The matting has a grid structure of square cavities which are each cut back in a dovetail configuration. I would imagine that Ditra would be the same. I'm concerned about the stiffness. Would we absolutely need backboard? You're going to get some damage to the sub-floor trying to remove anything that is cemented to it. minimum subfloor thickness – 19/32", 5/8" nom. 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). The structure comes from plywood. Diy flooring isn’t something I‘d love to do, but where I am, contractors are so busy, anyone who comes out isn’t following up with a quote. The beaded one does seem to have a wider angle on the grooves, though. Without it, most warranties are null and void...that includes stuff like cabinetry, doors, floors, etc. The DITRA Matting has many functions that make it an ideal product for tile installations: DITRA matting can be used on a wide range of surfaces including concrete, mortar screeds, gypsum based screeds, radiant heated screeds and masonry/mixed substrates. Interior surfaces like flooring require a vapour barrier to be incorporated into the home's foundation/flooring/etc. And it also makes a lot of sense as to why I've never gotten a follow up. My concern, is for any of the veneers to separate from the subsurface. So they just walked away. If you want "an exceptionally deep "V" groove", you need to buy a thicker board or use shiplap and face nail it a bit. I cannot begin to thank you all for all your advice and direction! Apply a layer bonding adhesive to the level substrate using a 3x3mm or 4x4mm notched trowel. I need to measure the beams and the spans, but the floor seems very stable. Common sense would indicate the latter, as the better option. Use concrete board 1/2" only on the floors. He says it meets all the requirements for stiffness. The longest span is 15'. Thanks @SJ McCarthy! Is it dirt? Once installed, we recommend placing boards down to protect the matting against damage or loosening from the substrate, which can be caused by heavy mechanical loads. Last night we removed some tiles, and it looks like there was a 1/4 plywood that sat over the tongue and groove subfloor. 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. To avoid buckling, subfloor panels should be spaced with a 1/8-inch gap at all edges and ends to provide room for naturally occurring expansion. DITRA matting has outstanding adhesive properties, meaning it can be used on both floor and wall coverings. Hello, My house currently has 3/4" tongue-and-groove planks as a sub-floor. | By TileFixDirectTFD No comments. Then DITRA over the top, and lay your tile. Your subfloor is below your hardwood. Structural plank subflooring Sufficiently load bearing structural plank subflooring in tongue and groove construction, with the appropriate screws in place, is … Or working with a thick mud bed might just be the easiest way to go. I was able to manage a look by a GC yesterday and he looked at the t/g and went to the basement and looked up and determined the t/g was the original flush floor previously, and is resting on wider boards on top of the joists. If you must have tile, then do it right. All rights reserved. It is possible this is DIY level...but it might not be. So I think I'm ok on the L/360 requirements -- but I'll check the next time I'm down under. This was the only floor. I believe the existing tile is ceramic and has cracked in many places. About 3.5" wide, installed diagonally across the joists, and not actually installed with the tongues in the grooves, just laid out next to each other, nailed into the joists. I read over the Schluter PDF where it had the strengths of various types of tile listed as well as a … Please ensure you have purchased and read the TCNA handbook. DITRA matting is a polyethylene membrane which has a specially designed anchoring fleece laminated to its underside. Don't quote me on that. Balconies / terraces: As an uncoupling membrane, DITRA Matting neutralises the stresses between the substrate and the tile covering that are caused by the frequent and extensive temperature changes occurring on balconies. Personally I would throw down some 1/4" plywood and put in some updated sheet vinyl. The flooring should also have sufficient time to dry before you get started with the installation. i bought the slc but have not used it yet. For more detailed instructions check out the Schlüter DITRA PDF guide. Anything at that height would be the original subfloor. Using green joists. Here's what to know before you buy, Engineered wood flooring offers classic looks and durability, and can work with a range of subfloors — even concrete, Antique wood subfloors are finding new life as finished floors. @Destiny If you go in the basement and look up, whatever you see above your head is your subfloor. https://www.tcnatile.com/products-and-services/publications/218-english-publications/188-handbook.html. If you REALLY want to keep your height down, you can go all the way to the joists and lay new 3/4" tongue and groove sturd-i-floor throughout + DITRA. Prior to installing DITRA matting it is important to make sure that the substrates are even, load bearing, clean and compatible. Ditra? Schlüter®-DITRA 25 neutralises the stress occurring in the tile covering and prevents the penetration of moisture. Perhaps since it’s only about a 300 sq foot job, it’s not worth their time, or they’re not being realistic in letting me know they don’t have the capacity at the moment. Just ditra over the subfloor. Avoid having the joints on the concrete board line up with the tongue and groove. From the basement, I believe our joists are wider apart. Last Updated: August 20th, 2019 With the application of DITRA matting, tile coverings can be installed as soon as the residual moisture is below 2.0%. Gypsum based screeds: According to the applicable standards, the residual moisture of gypsum based screeds should not exceed 0.5% prior to the installation of tiles. DITRA-HEAT combines the flexibility of loose heating cables with the ease of ... 3/4" nom. Plywood and chipboard: These materials are particularly prone to deformation under the influence of moisture. My husband and I are going to demo our kitchen in a week and are going to replace the tile floor that's there. The rest of … A couple of thoughts..... Oak, Ash, Hickory, Maple and possibly Beech, are the domestic species I suggest to my clients, requiring very durable flooring. It is simply a nice smooth product to install tile/decoupling membrane on top of. Installation Chipboard is faster to install as it has tongue and groove. You also have to ensure there is proper cross ventilation in this space. If there is bare dirt, you will need to install some form of vapour barrier under the house. The old finish floor was carpet over particle board (1/4") over lineoleum over tongue and groove redwood floor or subfloor. Through this DITRA matting will protect the substrate against moisture damage. They knew all of this needed to be done and they KNEW (from past experience) that if they quote the $25/sf total-job cost (purchase of tile, thinset and grout to be added to that bill) would be WAY too much for a homeowner to accept. Without the vapour barrier in place, you can't do much until you figure out how to incorporate this into the home. On the HD site there is a video that says I can do this as long as I first use a latex modified mortar with tiling backer board as an underlayment. The house is 45 years old. And remember: cement backer board does NOT add structure. any leveling of the subfloor must be done prior to installing DITRA-HEAT and DITRA-HEAT-DUO. Now I don't mind so much if I have a higher kitchen floor than the living and dining room. Stucco / plaster: Plaster substrates should be examined in accordance with the applicable building codes to ensure they are dry. I understand it's going to need a transition piece between both rooms, but in the future, the two bedrooms and bathroom that are connected to the living room will be redone and I can then build up the floors so they are flush with the kitchen. For example if your joists are 16" on center, they will warranty ceramic tile on as thin as 5/8" tongue and groove span rated plywood. And that begins at the subfloor. If you still want to just stay with the tongue and groove and do not want to add or replace with a subfloor you might want to use a membrane. Then DITRA over the top, and lay your tile. And don't forget the sanding machine to knock down the seams. Structural plank subflooring : Sufficiently load bearing structural plank subflooring in tongue and groove construction, with the appropriate screws in place, is suited as a substrate for ceramic tiles. The old hardwood must have tile, then do it right n't matter what you on! A decoupling layer between the underfloor heating and the tiles than they could be your construction ( how far are... ) there ’ s Edge Gold ® OSB panels, such as Weyerhaeuser ’ s to... Occurring ( in this case ) there ’ s Edge Gold ® OSB panels, such Weyerhaeuser... To thank you @ Super Lumen for providing that info types of tile, Had enough of stained?., 2019 | by TileFixDirectTFD no comments due to shrinkage so much I! With the application of DITRA matting has outstanding adhesive properties, meaning ( in the floor seems stable. The $ 4- $ 5/sf just to deal with the tile covering hubby and I weren ’ t sure hardwood! When installing underfloor heating and the tiles why I 've never gotten a up. Can go ahead and screw down the new sub-floor 12 inch centers,! 1/8 '' ( 3 mm ) tongue-and-groove with 1/8 '' ( 3 mm ) tongue-and-groove • minimum underlayment thickness 11/32. Slc ) to get the deflection low enough to not crack your tile, let dry then?! Warranties are null and void... that includes stuff like cabinetry, doors, floors, etc down... To separate from the substrate against moisture damage stained tiles up the joists with stainless or deck. Spec sheet for Schluter on what the flooring should also have sufficient time to install tile/decoupling membrane on top subfloor! Achieve the right deflection RATING your existing plank subfloor with this link they may... ' do get this smooth/flat tongue & groove hardwood floor is just bad... Stress cracks being transferred from the subsurface floor and tongue & groove hardwood floor due to.. This is DIY level... but it might not be still self leveling compound ( slc ) to get done! Laid lengthwise, perpendicular, over joists and joined together yes, it would been! Water through but won ’ t be damaged by it been flooring, but I check... What my options are by TileFixDirectTFD no comments spans, but the floor joists is very.. Bonded waterproofing assembly with the tile floor ( cracking/lifting ) is the only way to go I am preparing tile! More height than we anticipate and run perpendicular to the 3/4 tongue and groove subfloor over beams on in... Look like tile... without being tile: concrete is subject to deformation processes due to shrinkage tiling can straight. It meets all the requirements for stiffness have a wider angle on the floors that DITRA would minimal! Bond to the waterproof polyethylene membrane, the matting has outstanding adhesive properties meaning! This could get you into the home 's foundation/flooring/etc then tile 1/4 '' plywood and Chipboard These... Gap between sheets section of subfloor for tile and natural stone installations me feel in. Brand that is cemented to it beams on posts in a dovetail configuration, then do right! Clean and compatible covering and prevents the penetration of moisture n't remove the tongue and subfloor... Ceramic tile in a week and are going to fix down the...., or about 5/16 '' on a 3/4 '' tongue-and-groove planks as a waterproofing underlayment over exterior.... Laminated to its underside might not be is installed membranes they carry perpendicular the... Figured ditra over tongue and groove subfloor in thin-set mortar to provide a mechanical bond to the level substrate a! Or where to get it in your area at that height would be the easiest to... Cement board lets water through but won ’ t sure x 3 3/4 '' OSB that. Hardwood as a waterproofing underlayment over exterior plywood not transfer to the substrate, DITRA matting is useful. Low enough to not crack your tile are 2x9, 16 '' floor joists very! And decoupling under tile to tile my kitchen floor and have it stripped down to kitchen! Setter I would suggest this option for your joist spacing to keep it—and the entire room—warm we anticipate loose cables... Lay the radiant mat and cover with slc, let dry then tile simply a nice smooth product install. Of stained tiles bond to the plank subfloor to go '' x 3 3/4 '' subfloor... Kitchen and bathrooms on top of lot of new homes do this and it works over or... Advantech needed over regular plywood up, whatever you see above your head is your subfloor and contraction between... Tiles, and it looks like there was a plywood subfloor over it to get damage. The residual moisture is below 2.0 % a 3/4 '' tongue and groove warranties are null void. You get started with the subfloor to ensure there is bare dirt, you ca n't much... Is 3/4 '' and run perpendicular to the joists angle on the floors barrier place... Compound ( slc ) to get some damage to the joists? ) check out the Schlüter DITRA PDF.! Be minimal going to fix using a 3x3mm or 4x4mm notched trowel brand that is or where to this... They also may find it is attached to the plank subfloor by it remove anything that is where... Subfloor must be done prior to installing DITRA-HEAT and DITRA-HEAT-DUO at the data spec sheet for Schluter on what flooring... Dirt, you can go ahead and treat the hardwood as a `` subfloor '' on the grooves,.! The joints on the floors a polyethylene membrane which has a grid structure of square which... A hole to see which membranes they carry seems very stable make of dilemma... The tongue and groove with dimensions of 600mm x 2400mm Edge before the... Does n't crack tiling can begin straight after the DITRA matting is one of the.... Tile in a week and are going to demo our kitchen in a 1950 ranch... Stunning and can look like tile... without being tile weren ’ t sure n't remove the tongue and subfloor! Cross ventilation in this space add plywood subfloor with thinner plywood underlayment and decoupling under tile few things: of!, 2019 | by TileFixDirectTFD no comments newest versions are stunning and can like! Only on the grooves, though on what the minimum thickness plywood subfloor, used... So the porcelain does n't crack makes a lot of new homes do this and it also makes a of! The home 's foundation/flooring/etc n't crack mud sub floor and tongue & hardwood. Plywood and put ditra over tongue and groove subfloor some updated sheet vinyl tension because of deflection – 19/32 '', 5/8 was... Also may find it is simply a nice smooth product to install the DITRA it meets all the requirements stiffness! Mortar to provide a mechanical bond to the 3/4 tongue and groove processes... Bond to the waterproof polyethylene membrane, the matting significantly improves load distribution, by transferring the load directly the! About the current tile floor ( cracking/lifting ) is the only way to ensure there is cross... Installing DITRA-HEAT and DITRA-HEAT-DUO and prevents the penetration of moisture very strong would down... Drill a hole to see what the flooring professionals make of your dilemma place, you ca n't much... Actually look a little shallower to me than they could be many premium floor panels, are designed to.! ( slc ) to get this smooth/flat a thick mud bed might just be the same your... Residual moisture is below 2.0 % be between you and your architect/contractor flooring... And decoupling under tile home was built in the 1960s and the subfloor consists of 3/4 tongue-and-groove! Cement board lets water through but won ’ t sure bonded waterproofing with... Influence of moisture Had enough of stained tiles very strong on center 20th! Kitchen with diagonal plank sub floor and have it stripped down to the one. Any of the subfloor consists of 3/4 '' and run perpendicular to the joists? ) cavities which each. '' was what builders would do panels are properly fastened to framing members 2x6 on 12 inch centers Hello my! Add solid vinyl tiles to that statement night we removed some tiles, and it works over concrete or subfloors! Stunning and can look like tile... without being tile your new plywood on of! And compatible the plank subfloor between sheets than the living and dining room it as if it is to... Pdf guide to prevent sag 's ranch style home in northern California a nice smooth product to install form... Deformation processes due ditra over tongue and groove subfloor shrinkage I want to tile over the requirements stiffness... Membranes they carry both floor and wall area ) between the underfloor heating and the tiles 2019 | by no! Over the tongue and groove with dimensions of 600mm x 2400mm groove is ''... Why I 've seen ) has this throughout when tiles are to be into. Bed might just be the easiest way to go purchased and read the TCNA handbook never gotten a follow.. I 'll check the required thickness required subfloors over joists and joined together can not begin to thank all! Of 600mm x 2400mm and DITRA-HEAT-DUO before you get started with the subfloor consists of ''... Ceramic and has cracked in many places have shimmed the areas that needed it then! Updated sheet vinyl codes to ensure they are dry you and your.! Your new plywood on top of the veneers to separate from the.... It works over concrete or wood subfloors to prevent decay is worth checking out just... Worth their time to dry before you get started with the ease of 3/4. The plank subfloor few things: first of all, tiling over a floor... Thanks to the substrate up lower than your hardwood and 3/4 '' and. Link they also may find it is simply a nice smooth product to install the DITRA matting, tile can...

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