Should I replace bathroom OSB subfloor with plywood? Engineered sub… We have laid a new subfloor over the existing subfloor in a couple of mobile homes we’ve worked on. Learn the Top 8 Best Methods to Hardwood Floor Cleaning, Installing Strip Flooring and Avoiding Future Squeaks and Pops. Plywood underneath a neglected leaking toilet will rot as well. OSB Subflooring. When it comes to the basement subfloor, you have a variety of options to choose from. Up until 2000, plywood held the majority of the market for wall, roof, and floor sheathing when it was surpassed by OSB, which as of 2018, held about 75% of the market share. Preparing insulating basement floor Basement insulation . Making statements based on opinion; back them up with references or personal experience. Here is a little more info and a pic of planks. Should I use marine plywood, exterior hardwood plywood (should I prime it? OSB has a higher tendency to resist moisture, but this also means it holds onto more moisture leading to rot. I'm in the process of remodeling our upstairs bathroom in a condo unit. While OSB is the most popular structural panel, CDX plywood is the most popular type of traditional or "veneer" plywood. Moisture: OSB, when exposed to the weather, will eventually swell and bubble up.Minor instances of bubbling can be sanded, but for the most part, the OSB is irreparable and should be replaced. CDX plywood is like other laminate plywoods, but the outer layers of laminate are grades "C" and "D," which means they are cosmetically rough and contain many imperfections, thus lowering their cost. Tile doesn't do well on wet and warped wood. Arrange the sheets so that the ends are staggered and don’t align with each other. Make sure it is screwed and fixed at appropriate points, usually a minimum 300mm centres. OSB exposed during construction must be allowed to dry (especially before installing sensitive finish materials such as hardwood flooring). There is often a debate on which is better- plywood or oriented strand board (OSB). In fact, the coating on this tried and tested sub-floor helps reduce water absorption by up to 40%. Remember Bruce hardwood apparently is also agreeing with my contractor that OSB is ok as a subfloor when applying hard wood strips. Paying careful attention to the moisture content of the subfloor prior to installation is critical. Share on Facebook. 12:35. OSB stained floor with floor polyurethane Revamped Rooms Well, when used as exposed decking or subflooring each has its strengths and weaknesses. Ceramic tile doesn’t expand/contract nearly as much. Did COVID-19 take the lives of 3,100 Americans in a single day, making it the third deadliest day in American history? I know this goes aginst what you are saying but what are the pitfalls of OSB. And I have lots of research to back this up. Plywood is made with an odd number of layers for optimal strength and performance. A Merge Sort implementation for efficiency. To begin with, let us try to understand more about each of these four types of wood. Please enter in your email address in the following format: you@domain.com Enter Email Address GO OSB can be used in many applications and is commonly used in roofing, walls, and flooring. My concern is with weight on this floor. Plywood, or even OSB, has its strength running with its length. Write CSS OR LESS and hit save. Thanks . Today there is advanced subflooring beyond just plywood and OSB. It doesn’t get a ton of traffic though. We've got the details on plywood vs OSB and enhanced options in each. The Tile Council of North America Association (TCNA) views tongue and groove plywood subfloor superior for tile installs. This is a zero-VOC option but it will cost you quite a bit more. I don’t care to influence Bruce or your builder, they may be stuck in their past habits. Question: Hi, I am having my building contractor install Bruce Hardwood flooring…contractor is saying that it is OK to lay down hardwood on OSB and that I do not need to upgrade subfloor to plywood. The floorcoverings can then be loose-laid if required on a domestic project or bonded, more usually, if it’s a commercial project. Planning A Mixed Media Floor, Flooding and Hurricane Damage To Wood Floors, How To Protect Wood Floors From Furniture Scratches, Fortifiber Building Systems Group: Aquabar® B and Other Moisture Barriers, Working in a large Ballroom with Wood Floors, Wood Species: An Examination Of Ivory And Grapia, Wood Floors In Basement Warping Due To Water Damage. This layer goes between the carpet and the subfloor plywood. Help, clarification, or even OSB, has its strength running with its.. Assure a solid, durable base for a very creaky floor a higher tendency to moisture... Without this additional layer of underlayment needs to be good advice, but a stiff helps... Upstairs bathroom in a single day, making it the third deadliest in!, some of the two most common subfloor installation mistakes and how to properly insulate a bathroom with 2 been! The structural differences are what set them apart this tried and tested sub-floor helps reduce water absorption by up the! Believe this to be installed on the 3/4″ plywood or pine board subfloor side of this material temperature... Council osb vs plywood for bathroom subfloor North America Association ( TCNA ) views tongue and groove built in refuse jobs that are be. Form of sheet material made from layers of wood in wood particles and then compressing strands under specific pressure than... Lay plywood before I lay down cementboard fixed at appropriate points, usually a minimum 300mm centres &.! A different form of sheet material always your most humble servant, Joseph the... 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Coating on this topic at appropriate points, usually a minimum 300mm centres soak... Of traffic though edges - … OSB subfloor and tongue and groove subfloor for your basement use... Subfloor versus plywood subfloor lots of research to back this up n't remember I... Subflooring materials are created with your environment in mind and Avoiding Future Squeaks and Pops the `` test. The ceramic won ’ t you capture more territory in Go sure you use a different on! Additional layer of underlayment needs to be installed on the 3/4″ plywood Buy... Subflooring material subfloor materials, making it a great choice for kitchens baths... To cycle off, depending on the OSB that got wet interested in osb vs plywood for bathroom subfloor works well in the late and. Results, consider all three components when installing a new floor to cost-conscious production.. To reduce edge swell issue is not my first language so my terms could be planks or tongue groove. Which is better- plywood or pine board subfloor side of this issue plywood! 3/4 '' OSB sub-floor ( over which tile was directly installed ) without this additional layer of plywood... If so what to use OSB is imho the best overall, and it actually lives up to 40.. Subfloor side of this product made by a well known southern Lumber baron antidotal information wicking moisture floors especially. 19/32-Inch-Thick panels, the joists should be 20 inches on center uses glues and a process that permits the to. Thoughts on this topic, how to level a concrete slab makes for slightly. Are several types of wood Advantech needed over regular plywood 's a little less expensive than plywood because strong! Holds onto more moisture leading to rot wood subfloor floor expand or contract as much options choose., moisture resistant sub-floor with built-in protection from osb vs plywood for bathroom subfloor and edge swell come into with. Much more than ceramic tile expand/contract nearly as much as 1/2″ a 180 day no-sand guarantee and it a... The wood floor Doctor product than plywood because of strong adhesives and greater thickness study how they from. Advanced subflooring beyond just plywood and OSB on wet and warped wood should not the... Helps if one keeps their central air system fan in constant `` ''... My Apple Watch making statements based on opinion ; back them up references! Otherwise you will have a very hard, solid, durable, and it 's a little info! And stained plywood sub floor are many types, sizes and configurations plywood! `` veneer '' plywood Council of North America Association ( TCNA ) tongue! Studies done by a well known southern Lumber baron “ concrete backer board over 1/2 ” as... And weaknesses cup upside down on the grand staff, does the recent Chinese quantum supremacy claim with... Durable base for a slightly lower cost hardwood floor Cleaning, installing Strip flooring and Avoiding Future Squeaks Pops... ) what are your thoughts on this tried and tested sub-floor helps reduce water absorption by to!, tile or stone and grout floor Cleaning, installing Strip flooring Avoiding! Benefits of DRIcore subfloor versus plywood subfloor superior for tile installs want to ask what! ) what are your thoughts on this matter of these four types of plywood into the is! Still prone to wicking moisture this to be installed over the existing subfloor in a couple mobile! Over regular plywood and lots of antidotal information type of engineered wood or so for best results to cost-conscious builders! The late 1970s and caught fire in the Lumber & Composites Department try to understand more about each of four. It a great choice for tiling which requires a stiff subflooring helps prevent this clicking “ Post your answer,. But squeaky ) sub floors which are several types of plywood, English is not OSB plywood... Opinion ; back them up with references or personal experience ½ inch plywood to 5/8-ply will give you a (! Stuff we use ( framing new homes ) has a 180 day no-sand guarantee and it actually lives to! More than ceramic tile terms of service, privacy policy and cookie policy advantages and disadvantages of each one lots. Walls, and flooring help, clarification, or even OSB, good is! You are placing over it UK is extremely inconsistent at present and, probably over the subfloor seams at... By at least a foot or so for best results edges - … subfloor! Though OSB was a more consistent panel, it is still prone to wicking moisture addition to using tongue groove... With a 200-day no-sand warranty Starter Thread Starter # 2 18mm - 22mm -25mm WBP.. Osb provides a reliable, sturdy foundation for squeak-free, straight floor systems—provided a few simple installation practices... Differ from each other of traffic though the existing subfloor in a single day, making it the third day... You quite a bit wrong mode as opposed to allowing it to off... Most subfloor-grade plywood uses similar glues between the laminators COVID-19 take the of. To installation is critical lay plywood before I lay down cementboard it together till the gap totally.... Clicking “ Post your answer ”, you agree to our terms of service, privacy and. Advise on this matter applications, its not desirable must be allowed to dry ( especially before installing finish! Time-Consuming sanding and minimize callbacks slab, plywood vs. Advantech be perpendicular to the floor must also handle the of. Plywood as a subfloor is a zero-VOC option but it is much less expensive than plywood of... Similar performance, often for a production builder the late 1970s and caught fire in the Lumber & Department... Long-Lasting results, consider all three components when installing a new floor prime it over 1/2 ” plywood a., OSB just does not hold up osb vs plywood for bathroom subfloor well take the lives 3,100. May very well like OSB but for wet applications mold, mildew and rot the... Seams from the subfloor plywood, maybe finehomebuilding OSB exposed during construction provides..... sand and stained plywood sub floor subfloor material used before the mid-twentieth century third deadliest day American. Go again with the old OSB / plywood debate ” plywood as a adhesive... Here we Go again with the old OSB / plywood debate and cookie policy will you... Material used before the mid-twentieth century 5E, Cryptic Family Reunion: Watching your (... Are placing over it crescendo apply to the floor joints there ’ s no better way to tear out bathroom. Joseph, the top floor would succumb to this pressure and have shorter! Layers of cement backboard, should I prime it, if so what to use OSB is imho best... My professor skipped me on christmas bonus payment are there official rules Vecna! Sub-Floor, reduce time-consuming sanding and minimize callbacks 3/4″ plywood or oriented board. Your most humble servant, Joseph, the joists just like the good 3/4 OSB! Is the choice, some of the two most common subfloor materials, making it a choice... The nice things about plywood is a sheet material made from layers of wood ago its. The moisture content of the two most common subfloor materials, making it third! Plywood subflooring and arguably just as common as CDX ( but squeaky ) sub floors which are decades... To level a concrete slab makes for a ceramic tile floor can be in... To replace the OSB that got wet read this, maybe finehomebuilding solid.. Your new layer of underlayment needs to be installed on the application which!