Since then, planks have been almost entirely replaced by plywood and other sheet subflooring. Lastly, are dichromate (yellow zinc-ish) screws appropriate for … I've perused a number of threads here which have been helpful. If you are nailing down hardwood, i would install 5/8th t and g plywood over the existing. thinset applied with 1/4 inch x 1/4 inch trowel applied on top of the plywood/osb Leave a 1/4-inch expansion gap around walls and joints. 98 Posts . BC plywood over the old subfloor, using construction adhesive and driving 1-1/4-in. How to install plywood over plank subfloor. This engineered material acts as a floating floor over concrete to provide extra protection from moisture and create a softer feel underfoot. Once that is done you will pull up the existing flooring, such as the linoleum or the carpeting. APA’s installation guidelines for 1/4-inch plywood should be followed when installing lauan plywood, but installers BEWARE: Lauan is made under a wall-panel specification of the International Hardwood Products Association (IHPA). Plywood Flooring. As a professional, I would never nail a hardwood floor down to the old shiplap. Inspect the subfloor for evenness along joints and flatness between joists. Add a layer of 1/2-in. This gives you a hard, smooth floor solving this and also solves the aforementioned "smoothness" problem. Both are important components of flooring that have very different uses. Never run hardwood flooring in the same direction as plank subflooring. screws every 6 in. Hello, My house currently has 3/4" tongue-and-groove planks as a sub-floor. Cutting and nailing the subfloor is very labor intensive as well as the waste that results from the angle end cuts. Concrete slabs should be flat, use a leveling compound to fill any depression or voids. Wood Underlayments We knew we still wanted to have a wood plank floor, though, so we planned to buy cheap pine tongue and groove and paint it. For low profile hardwood flooring a 3/8" plywood installed over the planking will make for a flatter subfloor surface to install these floors over… It’s fairly easy to install plywood over subfloor, but you’ll want to give yourself plenty of time to complete the job. A common mistake do-it-yourselfers make when deciding on underlayment material is confusing sub-flooring and underlayment. joist spacing, single layer OSB or plywood subfloor Areas of Application over any even and structurally sound OSB or plywood subfloor with 16" (406 mm) o.c. He said there must be a vapour barrier for warranty. But the fact is, a properly installed plywood subfloor provides a suitable installation surface for most flooring materials, including luxury vinyl planks (LVP), which are thicker than traditional vinyl tiles and can smooth over slight imperfections better. In most cases 4-by-8-foot sheets of particle board or plywood must be installed in preparation for the vinyl floor install. I currently have particle board over 1" -1 1/4" car plank--which will be removed. joist spacing Limitations minimum 2" x 2" (50 mm x 50 mm) tile for natural stone, see detail D-W-S (page 6) To do this, measure and cut the plywood to fit your room. 11-28-2014, 12:50 PM. Hide screw heads below the surface of your plywood pieces to … Concrete can also be covered with special subfloor panels, such as DRIcore tiles, to create a surface much like conventional plywood or OSB subflooring. Sand-flat any plank subfloor edges if cupping is noticed, cover with 15lb felt paper. How to Install 1/4 Luan plywood Over Subfloor Video . Planks nailed with ring-shank or fluted subflooring nails tend to squeak less because … No manufacturing specifications support its use or gauge its performance as an underlayment. When last we checked in on the kitchen floor, things were not looking pretty. Subfloor vs. Underlayment: Definitions and Purposes . Any dark paint color would do the job – just stick to a paint that is an eggshell or satin. Plywood floor Plywood underlayment is not a good choice for ceramic or stone tile because it is not water-resistant. Do NOT line up the second layer with joints in the first layer. Also check the subfloors for squeaks and refasten as necessary before installing the underlayment. There's absolutely no problem laying a laminate floor over OSB, provided you take all the moisture-preventative steps you would take for a plywood subfloor. When necessary, sand the subfloor near joints; install extra blocking and re-fasten the subfloor to flatten uneven areas. Discussion Starter • #1 • Feb 27, 2018. To avoid building up the floor too high, you can use 1/4-in.-thick backer board instead of 1/2-in. Re-secure any loose wood subfloor planks, OSB, or plywood subfloors to the floor joists using 2-1/2" deck screws. Loose or damaged subfloors can cause squeaking and affect the performance of the finished flooring that is installed over it. This will bring my subfloor up past the recommended thickness since the OSB itself falls 1/8" short. I use the term "underlayment" to mean a layer above the subfloor, but not the finished floor. A subfloor is the layer of flooring that provides structural support. Contractors did the kitchen as it was covered by insurance, but we are doing the living room ourselves. Subfloor Options. Adhesive will help you here, as the subfloor plywood will have voids in spots that will not hold a fastener. They were commonly nailed to wood joists with standard box nails, which tend to loosen over time, leading to squeaky floors. View Full Version : Plywood orientation over plank subfloor. Arrange the plywood on the first layer of wood. Should I use 1/2" or 5/8" plywood as a subfloor over my car plank. Next, pry off any baseboards that will be in your way. 2 Posts . Then install a 3/8" minimum ( 1/2" is prefered ) plywood CDX underlayment over your plank subfloor by stapling well with a 16 gauge x 1/2 crown contruction stapler. This will allow for the laminate to expand and contract as normal. The planks are typically 1x6 and made of pine, fir, or a similar softwood. Do I need to 1/4" good one side or do I use a good underlay? The original planks are in good shape for the most part and I talked to a flooring guy here who said the diagonal plank is fine for the hardwood, if it runs perpendicular to the joists (16 oc). I am tackling floor tile installation in a bathroom/laundry room/storage closet/hallway makeover. Now we are intending to remove the plywood and vinyl layer and install a luxury vinyl plank system directly on the tarpaper layer. From a distance, OSB flooring may look a little rough and uneven, but when you get closer and feel the surface, you realize that's just an optical illusion. Hi, As was mentioned in this thread, I am planning to install 3/8" plywood over my 5/8" OSB subfloor prior to nailing 3/4" solid maple. My project is installing Menards Designer Image floating vinyl plank flooring on my entire first floor -- about 1200 square feet. That will give you a solid subfloor that won't squeak. Underlayment for sheet vinyl: (1/4 inch Luan Plywood Installation) Luan Plywood : When you install luan as a subfloor for sheet vinyl, ensure that the luan has been secured so there is no movement. This means that for 7/16" underlayment and 23/32" subfloor, the longest fastener you can use is 1-1/8". Once the VCT and the ant-riddled plywood were removed, we discovered the original pine plank subfloor was not salvageable. Has knots and seam but is level? A tube of PL400 and 2 1/2 inch flooring screws every 6-8 inches along the joist and 1 1/2 inch screws along all the seams. If it hasn’t already been done, clear the work area. Planks for subflooring must be run at a 45 degree angle to minimize the effects of cupping of the subfloor planks when tongue and groove finish flooring is used. 1/4" plywood subfloor stapled down Vinyl sheet flooring as the top layer I am sure the house had something like linoleum or asbestos floor tile in it when built new, but some previous owner removed all that, installed the plywood and vinyl. 1/2 inch - 3/4 inch exterior rated plywood or osb, screwed down to the planks the screws should avoid hitting the joists. The plywood adds stiffness and stability to the floor. backer. Step 3: Secure your plywood pieces in place using 1-inch decking screws. If all is flat, level and sound, you are ready to install that new oak floor in any direction you wish. Plywood sheets are laid perpendicular to the subfloor, with no common joints and no adhesives between the layers. When you install your vinyl on a wood subfloor, the top plywood should be a minimum of 1/4″ thick. Plywood is the best subfloor choice to lay on top of the pine because it nails in securely and creates a flat, even surface for the new floor to adhere to. Sharonlucile. Pound down any nails and renail that plank subfloor (or use screws, whatever). Single layer of plywood or OSB Joists, I-joists, or trusses 16" (406 mm) o.c. We are installing the same vinyl plank in our living room that is already installed in the kitchen. 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. For most subfloors, you will need to add an extra layer of wood. The joists are 16" on center. Once this step has been completed, you'll need a foam underlayment. Plywood underlayment should be installed only on a dry subfloor. One of the big considerations when installing different types of flooring in the home is getting the finished elevations to match. Also how far apart should my screws be when installing the plywood. Place your plywood pieces so their joints don’t go directly over the joints of your wood subfloor. Ideally, I would tear out the existing finish flooring, screw down the existing plank subfloor where loose, repair the plank subfloor where needed and then lay my new flooring (engineered hardwood) right over the existing plank subfloor. For the tile I will add a layer of ply (minimum of 1-1/4" subfloor req.) With the plywood in place, install the backer board as you normally would. Vinyl flooring is usually not installed directly over the subfloor in residential applications. The sheets are generally 4 x 8 or 4 x 12 feet in size. I have OSB subfloors under where there was carpet and where there was sheet vinyl there is a smooth board 1/4" thick on top of that (with the remnants of the glue from the vinyl). Plywood is made by gluing together multiple thin layers of solid wood at 90-degree angles and pressing them tightly as the glue dries to form a very strong structural sheet. But then the next weekend rolled around, flooring still unordered, … Our Plywood Pretty week is coming to a close and there’s one topic we haven’t covered yet…. To prevent that from happening, we painted the subfloor a very dark brown color, using paint that we already had. In most situations, the easiest way to firm up the floor is to install a layer of 1/4" plywood over the subfloor (nailed or screwed and glued) in such a way that the new plywood seams do not lay over the old seams. A plywood subfloor generally uses 1/2-inch to 3/4-inch-thick sheets of plywood that have one rough side (which faces down) and one smooth side, which faces up. At the angle, the finish flooring rests on the high spots of the subfloor. If we installed the wide plank plywood flooring without first painting the lighter colored subfloor, it would have shown through the spaces in between the planks. Discussion Starter • #1 • Aug 31, 2017. Hello, I am a newbie at setting tile. fasten any loose planks and flatten (plane, sand, chisel) any planks that are not level.
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