How well the floor structure is designed and built will determine how much weight the floor can carry. Running the floorboards along the longest dimension of the room will make the room appear larger than it is. If so, what thin underlayment (plastic sheet, paper, felt, or paint?) Once these conditions have been met, you can install wood flooring with confidence. NWFA guidelines specify using relative-humidity testing (ASTM F2170), calcium chloride testing (ASTM F1869) or calcium carbide (CM) testing (ASTM D4944 and MilSpec CRD-C154-77) to identify the moisture content of the slab. If you plan to install your flooring in a bathroom, kitchen, or mudroom, make sure you have enough ventilation to keep your subfloor just as dry as the top surface of your flooring. Doing this will help minimize any movement within the wood flooring later. Since this type of sub flooring is usually found in older homes and can loosen up over time from the boards expanding and contracting, it is very important to remember to re-secure these planks to the floor joists using 2-1/2" deck screws prior to installing any floor covering, as loose or damaged boards will affect the performance of the finished flooring. If the hardwood flooring is installed parallel to the direction of the plank subfloor the new wood floors could pull apart leaving open gaps or develop waviness later if the underlayment planks expand/contract or the edges cup upwards. Also, a good friend has solid, on site finished floors. fix floors squeaky below screw floor repair On truss/joist spacing of more than 16 up to 19.2 (488mm) o/c, the standard requires 3/4 minimum (23/32, 18.3mm) T&G (tongue & groove) CDX subfloor panels, in 4 x 8 sheets, glued and mechanically fastened. One of the most important parts of your hardwood flooring installation is the part thatll never be seen your subfloor. One of the most important parts of any buildings structure is its floor system. Is this a new house? Loose or damaged subfloors can cause squeaking and affect the performance of the finished flooring that is installed over it. Thin-classification solid-strip flooring must have a 3/8or better plywood underlayment installed over solid board subflooring. 2. plank subfloor (over the recommended foam pad) as long as the plank tongue groove hardwood refinishing floor expect Nailed down flooring sub-floor thickness is mostly to make sure there is adequate holding power in the nails. All About Installing Hardwood Flooring Over Radiant Heat If you do engineered. look for these things: 1. Parquet flooring cannot be installed directly to solid-board subfloors and requires 3/8 or better underlayment panels, nailed on a 6 minimum grid pattern using ring-shanked nails or staples. This is a question we get asked enough to post information on the subject. I really think it's not that hard to wipe up spills fairly quickly. If you plan on using a glue-down engineered wood floor, we recommend making sure the slab has a moisture content of less than 4% throughout the year, and to use an adhesive that is water resistant. Its hard to give you all of the pros and cons since I don't know your particular situation. Alternatively, two layers of subflooring can be used. black felt Hardwood flooring underlayment paper over the subfloor overlapping the seams 4-6 inches to help retard moisture transfer. Any suggestions? 1960 - 1980. Neither floor is level wood/tile with each other. Although it is standard practice to install all hardwood flooring no matter the thickness, across the floor joists to support, stabilize and strengthen the whole floor structure sometimes that board direction is not preferred. Also, I can either add more nails or screw down the existing 1/2" subfloor to the joists. Doing this will also allow you to run your new wood flooring in any direction desired. The floor system carries the weight of interior walls, roof, furniture, appliances, finished flooring, people, etc. Screws are not nearly as much of a problem, but screwed and plugged can lead to splits form drying of the wood between the screws since there will be very little movement of the screws. Additionally, 3/4 minimum OSB subfloor panels in 4 x 8 sheets, glued and mechanically fastened, can be used. Slabs also must be free of non-compatible sealers, waxes, oil, paint, drywall compound, etc. For double-layer subfloors, the first layer should consist of nominal 3/4 (23/32, 18.3mm) CDX subfloor panels or nominal 3/4 OSB subfloor panels, in 4 x 8 sheets. How to finish. It splinters horribly and doesnt come up cleanly. If a solid product will work for your situation and that is what you want, then go for it. A wood subfloorshould be OSBor plywood of 3/4 or thicker for a hardwood floor installation. All About Engineered Wood Flooring Engineered flooring is real hardwood flooring. parallel to the direction of the plank subfloor the laminate flooring I have only included Particle Board in this article because a lot of people see it when they remove old carpet and think it is a structural subfloor material like plywood or OSB. Always test for moisture in wood subfloors as well. I want to install 3/4 oak over it.

We need to lay new floor, could new engineered floor have been floated over this previous floor? If peaks or valleys in the subfloor exceed the tolerances specified above, sand down the high spots and fill the low spots with a leveling compound approved for use under wood flooring. Water used within the mix of newly poured slabs can take up to 3 months or more to dry out. The decision to make is whether or not spending a few extra bucks going in is advantageous rather than getting something low cost which you may be sorry for down the line.

If a 3/4" thick hardwood floor is desired, a sleeper system can be built on top of the slab using 1/2" or 3/4" thick x 3" wide strips of wood spaced 12 inches apart with 3/4" cdx plywood screwed to the top then the flooring installed.

For webinar sponsorship information, visit or email My look is very modern, but the more rustic floor still works. The difference being that in an "engineered" product, you are probably looking at something with 2mm (or less) wearlayer (top veneer) which will not allow a lot of refinish capabilities and is probably an imported product. 2 Common and kiln-dried to less than 15% moisture content. The additional underlayment should be glued and screwed down over 3/4 inch thick OSB subfloor to add stability. Thanks. If desired, Particle Board Underlayment can be left in place if a Floating engineered wood floor or a Floating Laminate floor system is going to be installed over it. They may have an idea of the outcome. One of the benefits of removing the old flooring is it allows you the chance to fix any loose subflooring or squeaks by re-securing the main subfloor to the floor joists prior to installing the new flooring. There are a few of us in the industry that produce SOLID flooring in varying thicknesses as well as heavy faced engineered flooring, which gives the best of both worlds. Her's swell and contract so much that she ends up with much bigger gaps between boards than mine ever are (obviously an issue for liquid spills). and her's is a very high quality, expensive home. Photo courtesy of NWFA. Went through this whole dilemma last year. If that is the case I could add another layer as underlayment. Want to make sure the floor is as solid and sound as possible. My thought is that if you go with the solid wood sanded on site, be sure you check references on the installer, and ask if they've maybe done a floor in that combo in the past. OSB subfloors also will be covered in education sessions and demonstrations during the NWFAs Wood Flooring Expo to be held April 2-5 in Dallas. I doubt many of the "import" crowd can boast that fact. The finish is matte- not shiney. OR, install 2x6 blocking between the floor joists for added stability.

Mine is probably 1/4 inch. Check for the presence of sealers by applying several drops of water to the slab.

Some of the old timers used to lay out chalk lines on the paper over the joists and nail into the joists as well as in between. It has a wear layer of varying thicknesses - the thicker the wear layer, the more expensive the product will be but it will have the opportunity to be sanded and refinished more often compared to a thinner wear layer. The 1/2 plywood should be offset by 1/2 panels in each direction to the existing subflooring, or the panels may be laid on a diagonal or perpendicular with 1/8 spacing between sheets. It's very simple to look at the sample and see that. My floor has certainly scratched in 9 months of living. Laminate Flooring can simply be installed using their 1/8" thick padding directly on the concrete slab over a 4-6 mil plastic. Wood floors can be installed over either wood or concrete subfloors, and the requirements for each are different. Truss/joist systems spaced more than 19.2 (488mm) o/c up to a maximum of 24 (610mm) require 7/8 minimum T&G CDX subfloor panels or nominal 1 OSB subfloor panels, both in 4 x 8 sheets, glued and mechanically fastened. could develop distortion later. Hey, also, for what its worth---- when we bought our house, the hallway and stairs were existing red oak, HIGHLY shiney and yellow looking. Here's my take. All Rights Reserved. subfloor is flat. We paid to have the carpets removed from the rest of the upstairs, red oak installed, and the whole kit and kaboodle sanded and stained in the minwax Jacobean. (adsbygoogle = window.adsbygoogle || []).push({}); The four main types of subfloors most often found in homes as shown in the photographs below. Can we instal floating click and lock wood flooring with foam underlay over that? To do this, I have to first remove carpet and consider removing linoleum in kitchen, all with different heights. But that is certainly not the norm, most customers do want the wood to be glued down. It should consist of boards no wider than 6, installed on a 45-degree angle, with all board ends full-bearing on the joists and fastened with minimum 8d rosin-coated or ring-shanked nails, or an equivalent. I was convinced that anything factory finished is a much more durable finish than anything site finished (you know. several layers that are baked on in the factory).

The flooring must be installed crossing the subfloor Did not address 1/2" non tongue and groove plywood subfloor, commonly used before tongue and groove was available. I'm not a builder. but I researched this topic to death for our own home. Solid hardwood vs. engineered hardwood floors, solid hardwood versus engineered hard wood, Prefinished or Site sand/finish hard woods?

Repairing subfloor flatness. Please click here to continue without javascript.. Have questions?

The tile appears to have another tile layer under it. I bought a home on stilts. If the laminate flooring is installed parallel to the direction of the floor joists the Laminate flooring could develop distortion later. The subfloor is what lies beneath the planks of solid or engineered hardwood flooring. 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. The type and condition of the subfloor will impact the installation process and determine the success or failure of the flooring long-term. 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. Jason Elliott - Installation usually consists of nailing these boards to the floor joists.

Concrete slabs need to be flat. The hardwood flooring must be installed crossing the floor joists (at a 90 degree angle). This means that the wood will expand and contract less than solid wood flooring during fluctuations in humidity and temperature. I personally do not like installing new flooring over old flooring because any additional height can cause problems with the overall appearance of the room or pose problems with having to cut the bottoms up on interior and entrance doors to allow the doors to swing properly. For the last 40 years CDX tongue and grooved plywood has been the most commonly used exterior structural subfloor material used in homes. Even though you may think your homes environment is dry, interior relative humidity moisture levels and ground water tables can change frequently from month to month, We recommend laying 15 lb. To keep them lasting for generations to come, you must start by meeting all of the subfloor requirements. black felt Hardwood flooring underlayment paper over the wood subfloor overlapping the seams 4-6 inches to help retard moisture transfer that may migrate up from damp basements through the subfloor and affect the stability of the Hardwood floor. Here are some factors to consider as you determine whether your subfloor is up to the task of protecting and supporting your new hardwood floors. Engineered wood is SOO much easier to install especially if you're living in the home during remodel. For concrete subfloors, make sure the slab is flat to the wood flooring manufacturers specification. Some types of wood flooring should not be installed directly over solid-board subflooring. Again, you need to have someone come out and inspect your property because no flooring project is exactly like another, every situation is different and unique. Can I install hardwood on top using one and one half to two inch staples? There's a lot of smoke & mirrors in regards to many of the "imports" for example, they may be called "golden oak" leading one to believe they are getting an oak floor, but often the producer is only referencing the color which may be construed as less than honest by many of us in the biz. One method is to tape the edges of several 2' x 3'sheets of plastic down in several areas of the slab, wait approximately 48 hours to see if moisture develops under the plastic. I definitely believe the darker and/or shinier, the more you will see dust and footprints. Wood subfloors must be flat, clean, dry, structurally sound, free of squeaks and free of protruding fasteners. If the OSB sub flooring flexes up and down when walked on then you should add an additional layer of 3/8" or 1/2" thick plywood underlayment glued and screwed down to add stability. Mine is a mid-deep brown with some color variation and almost no shine. Students work to repair a non-flat subfloor during an NWFA training session. Laminate Flooring, which can only be installed using the floating method, can be installed over a 3/4" thick The grain of each layer runs in different directions, which makes it very stable. If there is any deflection in the wood plank subfloor when walked on it would be advisable to add an additional layer of 3/8" or 1/2" thick plywood underlayment glued and screwed down over the plank subfloor to add stability to weak subfloors. When installing engineered, solid or floating floors that are less than 1/2" thick we highly recommended you add an additional layer of 3/8" or 1/2" thick plywood underlayment. Plank subfloors are usually made up of 3/4" thick x 4-8" wide southern yellow pine boards. It is NOT suitable to use as a structural subfloor material. If a slab tests too high in vapor emission to glue a floor down, consider using a vapor-retarder type product, installing a vapor retarder and a plywood subfloor or using an alternative installation method.

Are oak floors out of date. might have been used rather than trying to pry it up as it splinters. It is strongly recommended to use an impermeable vapor retarder with a perm rating of .13 or less, such as 6 mil polyethylene film.

BUT the additional height of both the particle board and the new flooring may pose a problem with doors and appliances. An engineered hardwood can be installed over a concrete, wood, tile and full adhered vinyl subfloors when installed as a floating or glue-down floor. Call me at (949) 279-8858 and I would be happy to tell you more. Glad to help with any information. Make sure the slab is a minimum 3000 psi. This makes it difficult (if not impossible) for moisture to escape. But it inherently had so much character to it, so you have to really look to see scratches. Be sure to read the manufacturer requirements of your subfloor beforeyou begin installation. In a SOLID product the main factor is the amount of useable flooring ABOVE the T&G that will determine the options to refinish. For example, basements are almost always below grade, since they are below ground level. We have a crawl space so summertime moisture is an issue. Particle board underlayment has the appearance of oatmeal but is actually made up of tiny wood particles glued and pressed into 4" x 8" sheets. Do I remove all levels of tile and plywood and start over? Some engineered floors literally have a paper thickness of wood on top. For more information, visit We You absolutely should remodel with what is appropriate for the neighborhood, and consider resale especially if you plan to sell anytime soon. Although 5/8" or 3/4" is preferred as a subfloor, I have seen many hardwood floors that went over 1/2" plywood that are just fine. For wide-width solid flooring (3 or wider), the difference should be no more than 2%. My engineered floor is my favorite floor I've ever lived on. But if you have a weak subfloor that flexes up and down when walked on I would recommend adding an additional layer of 3/8" or 1/2" thick plywood underlayment, glued and screwed down over the weaker subfloor will add stability. Floating Engineered Wood Floors were designed for installing over concrete and really work the best. Ceramic tiles a versatile and popular material for all kinds of floors. The flooring must be installed crossing the floor joists (at a 90 degree angle). Slab floors that have a 4-6 mil plastic installed prior to the pour will better retard moisture transfer later. Because so much is resting on the strength of your subfloor, it is critical that you ensure all the subfloor requirements are met before you install. recommend laying 15 lb. I also like knowing if I have severe damage in a certain spot, they can simply pop out those boards and put in some of our extras. Copyright 2022 Bestlaminate | All Rights Reserved | Bestlaminate Inc. Subfloor Requirements for Hardwood Flooring, Click to learn more about how to prepare your. These design failures lead to multiple performance or structural failures of the floor system causing excessive movement, sagging, unequal heights, separation, or squeaking within the floor system. My engineered doesn't swell or contract at all. and I don't have to run a humidifier or anything.

Start a chat with one of our flooring experts in the box on this page and get a fast answer to your hardwood flooring installation questions. Nail on a 12 minimum grid pattern, using ring-shanked nails or staples. If the laminate flooring is installed Stapling or nailing your flooring to the subfloor is the most common way to install solid hardwood. The vacuum will pick up rocks or small pebbles and scratch the floor. 3. It is standard practice to install the hardwood floors at a 90 degree angle across the floor joists to stabilize and strengthen the whole floor structure. The NWFA offers detailed guidelines about subfloor requirements at Is this possible?

There are many beautiful solid choices out there. Houzz Pro: One simple solution for contractors and design pros. Underneath the wear layer is a composite of layers that can be of the same species, or of different species. We recommend to lay a 4-6 mil plastic down on the slab first to retard any minor moisture transfer from the concrete.

As an alternative you could install 2x6 blocking between the floor joists for added stability. I may suggest that a subfloor is put down first and old floor removed if not too costly. I have a concrete subfloor with 3/8 engineered flooring glued to it. Photo courtesy of NWFA. 3/4" Thick Solid Wood Flooring cannot be nailed or directly glued down over a concrete slab. Its the foundation that provides a solid place for your hardwood to sit for years to come. Laminate Flooring, which can only be installed using the floating method, can be installed over a plywood subfloor (over the recommended foam pad). All Rights Reserved BNP Media. Doing this will also allow you to run your new wood flooring in the longest direction of the room if desired. If there is any deflection in the subfloor when walked on it would be advisable to add an additional layer of 3/8" or 1/2" thick plywood underlayment glued and screwed down over the OSB subfloor to add stability. Is screwing preferred over the spiral flooring nails? We also go over questions regarding Particle Board and Installing New Hardwood Flooring over Old Wood Flooring. Were here for you.

I agree if a floating application is chosen for an engineered product it will sound hollow when walked on and will feel different from a glued down application or solid nail down application. It has wood and tile flooring. Laminate Flooring - Thinner laminate type flooring can be installed over OSB subfloor (over the recommended foam pad). So it can be resanded a couple times. The subfloor in the house is currently 1/2" Plywood Sheets. I removed vinyl tiles and mastic from basement floor. There can also be clearance problems with appliances and it can create unevenness where other rooms connect and adding additional layers of new flooring places unnecessary weight to the floor system. 3/4" Thick Solid Wood Flooring can be installed directly over 3/4" thick OSB subfloor.

Put down 1300 sq ft of engineered wood (kitchen/hallway/living/eating areas). and I have 4 kids and a dog. subfloor when walked on it would be advisable to add an additional If there is any deflection in the subfloor when walked on it would be advisable to add an additional layer of 3/8" or 1/2" thick plywood underlayment glued and screwed down over the wood plank subfloor to add stability to weak subfloors. If the water beads up, sealers or oils may be present. Be careful with your color/sheen. For the purposes of the article, Ill be using CDX to mean CD Exposure 1 plywood and OSB to mean OSB Exposure 1 unless otherwise noted. If you desire to run the wood flooring parallel with the subfloor boards you must install an additional layer of 3/8" or 1/2" thick plywood underlayment glued and screwed down over the plank subfloor. Depending upon whether or not the 3/8" material is SOLID vs. Solid hardwood floors should not be installed below grade, or below the ground outside. We had water damage to a 1 yr old engineered hardwood floor that was glued directly to concrete slab. This is used to make sure a real human is filling in the review. By learning how professional tilesetter Michael Byrne handles the challenges of tiling a watertight bathroom floor and preparing a shower pan, you'll be able to tile any floor in your home, including kitchens, entryways and patios. Good luck with your flooring search and again contact me with any questions, I can go over your exact situation if you provide me more details. Make sure the subfloor is sealed from cracks and doesnt have any uneven areas where water could pool below the surface. If signs of moisture appear, DO NOT install any wood flooring until the excess moisture level is corrected. I have 2 kids and a large chocolate lab and the flooring in my home is glued down engineered Santos Mahogany. Most engineered wood floors can also be installed using the floating method. Need a little bit of extra help? This is why it is important when installing a wood floor to acclimate the wood to the homefrom 4 to 7 days or moreprior to installation and to leave the proper expansion gap around the perimeter and at all fixed objects. 3/4" thick Solid Wood Flooring must be installed across the subfloor boards (at a 90 degree angle). Best hardwood engineered light oak, wide, 1/2 min thick, made in USA? The grade of your flooring matters too. over plank subfloor to add stability prior to installing any flooring. The combo. If there is too much moisture it may cause the wood planks to cup, or buckle. To test, draw a nail across the top.

Which social media platform do you feel is best to reach the next generation of flooring installers? If a customer is concerned with cost, then one of the options is to use a floating application if the manufacturer recommends it. Running the floorboards along the longest dimension of the room will make the room appear larger than it is. If it leaves an indentation, it is probably lightweight concrete and should be avoided. View our. And if the old flooring should ever become loose it could affect the new flooring installed over it. Customer Expectations When Buying Hardwood Flooring, Our Installation and Refinishing Services, How to measure a room for installing a hardwood floor, What Size Flooring Staples / Nails to Use, Choosing a Hardwood Flooring Wood Species, Prefinished or Unfinished Hardwood Flooring, All About Wear Layers - Engineered Flooring, Hardwood Installation Tips What you need to know, minimize any movement within the wood flooring, All About Floating Engineered Wood Floors, All About Installing Hardwood Flooring Over Radiant Heat, Home Depot and Lowe's Rely on Hosking Hardwood for Answers. layer of 3/8" or 1/2" thick plywood underlayment glued and screwed down Wood flooring, be it engineered or solid, is one of the best remodeling choices and gives a high return on investment. Can we glue vinyl tile with grout lines on this plywood which we hoping would be adequate enough for flooring to breath! 2004-2012, Copyright protected. Introduce wood beams, countertops, furniture and more, Consider color, contrast and wood to keep a white space from feeling cold, Designers share fresh ideas for bringing dynamic style to this classic kitchen palette, Avoid the hospital look by introducing a bit of color, personality and contrast, Try this classic kitchen combination for a design thats warm and inviting, Use this classic color palette for clean sophistication and as a backdrop for accessories, Wood brings warmth to kitchens in colder regions, while white walls and countertops keep things bright, What you can expect from a kitchen remodel with a budget from $20,000 to $100,000, Looking for an alternative to bright white? Concrete slabs should be flat, use a leveling compound to fill any depression or voids. Particle board can absorb excessive moisture is very brittle and does not hold nails very well. I just don't want you to think that you only have one option. Design, CMS, Hosting & Web Development :: ePublishing, This website stores data such as cookies to enable important site functionality including analytics, targeting, and personalization. Hello, we have a sub floor of plywood and then particle board that carpet was on. The hardwood flooring must be installed crossing the subfloor boards (90 degree angle). CD Exposure 1 plywood (also known as CDX) and OSB (oriented strand board) Exposure 1 subfloor panels are also appropriate subflooring materials, but the proper thickness of the material must be carefully considered depending on the truss/joist system used. The hardwood flooring must be installed crossing the subfloor boards (at a 90 degree angle). Thank you. I went for more of a chestnut.. and it is GREAT to live with. We are not talking about laminate flooring which uses a floating system (meaning there is no glue adhering the floor to the substrate, the floor is snapped together using a tongue and groove system). Particle board is NOT a structural subfloor material and is only manufactured to be used as a inexpensive underlayment filler sheet on top of the main structural subfloor material to raise the height of carpet to a desired level. I can now get a floating floor knowing what should be done first. In the summer months when the humidity is higher the wood willabsorbexcess moisture and expand and the gaps will disappear. Is the subfloor rigid or strong enough to support your hardwood flooring? My understanding is that replacing boards on site-finished projects requires refinishing the whole floor. If this type of underlayment is present, it will have to be removed when planning to install a nail or glue down hardwood floor. I have a plywood subfloor covered with particle board. I LOVE the look of super-dark floors, but I didn't want the daily upkeep. I am planning on getting 5" Quartersawn 3/4" thick hardwood flooring installed in my home. Use a self-leveling cement type floor leveler to fill any depressions within the slab and allow to dry before installing any flooring.