Can I install 3/4" of hardwood flooring directly upon the original plank subfloor? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. As a rule, the biggest difference you can have between two adjacent high points is 3/16 of an inch. Ideally glued in the seam if it's T&G, and to the joist using an ASTM D3498, or APA AFG-01 conforming adhesive (PL-400/Premium, Lumber Lock, AdvanTech for example). The situation was pretty bad, and nowhere near where we needed it to be to lay down a seamless plank floor by ourselves. The oldest type of wood subflooring used in homes is made from lumber and is known as wood-plank subflooring. Issue 286 - Oct/Nov 2019. https://sccpublic.s3-external-1.amazonaws.com/sys-master/images/h71/h71/8858545389598/DITRA%20Installation%20Handbook.pdf, Page six for the bare minimum required for sheathing based on joist spacing: http://www.tolko.com/system/resources/W1siZiIsIjIwMTcvMDEvMTgvMTBfMjFfMzNfMjM3X0FQQV9FbmdpbmVlcmVkX1dvb2RfRmxvb3JfU3lzdGVtc19Db25zdHJ1Y3Rpb25fR3VpZGUucGRmIl1d/APA-Engineered%20Wood%20Floor%20Systems-Construction%20Guide.pdf. Is there any solution beside TLS for data-in-transit protection? Why cement under upstairs bathroom floor? If you run into joist issues you'll need to ask another question. In that case, knowing how to properly flatten a subfloor before the flooring installation is essential. Active 1 year, 8 months ago. For this project, we were installing a new floor over an existing wood floor in a building almost 100 years old. How can a hard drive provide a host device with file/directory listings when the drive isn't spinning? A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. It looks like many of them have shrunk, and don't even touch each other anymore. After my bathroom was demoed, I discovered that the subfloor is in bad shape. Additionally, engineered wood flooring may use the glue-down method as well. Wiring, plumbing, old subflooring running under a wall are not an issue. Are you sure those are T&G? Let it dry thoroughly before your flooring is installed. Learn how to install it over concrete, tiles, or existing vinyl flooring in our step-by-step guide. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. @Xen2050 I've added details, I was hoping for a good video on it, however they are all missing key points which I've commented on, and added a picture for reference. Glue and screw this underlayment in place. I believe we can fill most cracks and put a good finish on them. Once we pulled up the carpet and tile we were left with a floor covered in old glue and carpet remnants and the subfloor was full of cracks. All the specifics for DITRA installation are in the handbook or on Schluter’s site. Can I use self leveling compound to level old thin set over plywood subfloor? I then realized that the plank subfloor runs in the same direction that i planned on running the new hardwood floors. Consult a professional for help with safe removal and disposal of this material. And if I do pull them out should I just pull the kitchen and bathroom or gut the whole house hardwood and all? Attached are three pictures that I took of various parts of the plank subfloor that I revealed through removal of the finish floor and sleepers (and 700LBS of nails). Subfloor replacement selection - OSB or Plywood. *Sigh*. That’s not a lot of separation in a 10-foot radius. Set the saw depth just low enough to get through the existing sub floor. Laying a New Subfloor Over Old Pine Flooring. Do not use flat bottom gables with scissor trusses. 2. After my bathroom was demoed, I discovered that the subfloor is in bad shape. Some manufactures recommend pushing the first row against spacers that keep the planks away from the wall a small distance. Here are a few considerations you must make before unrolling your underlayment and installing your first plank. Use this guide to learn more about the differences between glue down and floating vinyl plank flooring. I just found plank subfloors when we pulled up the 2nd floor carpet of our newly purchased 30-year old house, built in 1988. There are a number of ways to do this. But i looked closer at the current hardwood floors, and they were installed directly over the plank subfloor, in a parallel fashion, with just a felt paper between. First, I removed the carpet and padding. To test your subfloor for moisture, you should always take a moisture reading. Otherwise, you are going to have a bunch of cracked tiles. I've seen it done with OSB and Plywood, but no mention about plank. If nailing the first row down, use a pneumatic nailer to secure the piece in place. As you can see in the photo below, a section of the floor broke away easily during demo. Since we cannot determine how strong that bond may be, it is best to bond directly to the substrate. 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. The following options will perform equally, their differences are time, cost, and thickness of the subfloor. 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 … For tile, plywood is generally recommended by manufacturers over OSB. Others advise nailing the first row to the subfloor. You can easily add 1/4" ply glued and screwed down and it will be totally structurally safe. In an old house, you'll almost certainly need to add a layer of plywood to the plank subfloor. 1700 house, the edges were beveled down to make the floor look old. Since then, planks have been almost entirely replaced by plywood and other sheet subflooring. Be safe when leveling floors and remember that old flooring may contain asbestos. Re: Laying A Subfloor Over Existing Plank Subfloor I remember that thread, and it was discussing more tile underlayment as has been mentioned. It’s also the subfloor that can hold in the most moisture. Subfloor Repair Repair with subfloor to floor of a kitchen. How to repair/replace old tongue and groove plank subfloor in bathroom? so the tile over this definitely would have gotten wet at times though the board shrinkage seems to be uniform throughout the room and not concentrated in an area you'd expect to get wet more often such as next to the tub vs. under the vanity. This method of laying a sturdy subfloor on top of joists and then topping the subfloor with a cosmetic-only flooring top creates a tighter, stronger structure. Usually non-bearing walls are built on top of the flooring without regard to the joist layout. The oldest type of wood subflooring used in homes is made from lumber and is known as wood-plank subflooring. What is the nominal size of the joist? No problem leaving the original sub-floor, but it needs to be properly prepared. If you're going to lay sheathing on the existing floor, you need a minimum (emphasis on minimum) of 3/8". Once in place alongside the broken joist, glue and screw the new joist to the old broken one. Is it flat? Both OSB and CDX subfloor plywoods are available with the tongue and groove arrangement. Some manufactures recommend pushing the first row against spacers that keep the planks away from the wall a small distance. 7 years ago. What makes a quality subfloor panel? Underlayment? Pound down any nails and renail that plank subfloor (or use screws, whatever). Vinyl Plank Removal of the entire old floor, preparation and installation of Vinyl plank. IN GENERAL: ensure subfloor panels are level and properly fastened to the joists. It’s still a manageable job if you have a little DIY skill. Not all sheathing is created equal, however if you're picking up sheathing grade from a big box store, they hold a respectable graded sheet which is what I'm going to base the rest on. Use this guide to learn more about the differences between glue down and floating vinyl plank flooring. Wood Plank Subflooring . I used water based poly on a loft stair project in 2013 because I was looking for a finish that didn't yellow the natural wood look I wanted. Like | 2; Save; Lenna Halkes. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Verify the distance is the same at several points. Unlike the subfloor, this is not a structural element, and it provides no strength to the floor. Does "Ich mag dich" only apply to friendship? Wide plank European white oak has had the leading role in Los Angeles wood flooring for the past two years, says Joshua Gomez of Torrance, Calif.-based Design Tech Custom Flooring Inc. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. Install the new sub flooring with liquid nails on each joist. Laying a New Subfloor Over Old Pine Flooring. Underlayment Floor repair, installation of underlayment (This is used to reduce the noise of footsteps) and installation of Vinyl plank. What is the proper way to repair this floor? What does the phrase, a person with “a pair of khaki pants inside a Manila envelope” mean.? If it's 18" and 2x8 (most likely case) or greater, you can probably get away with one 3/4, but I'd recommend 2-5/8" cross installed. View Entire Discussion (5 … From the pictures you will notice what seems like substantial water contact. If it's easily breaking and giving when you walk on it, replace it with new T&G sub flooring. If the subfloor is unlevel, you can fix low spots with a self … Registered. This is a bathroom that will have a tile floor so the goal is to properly support the tile, a bathtub, etc.. Outside the bathroom is 3/4" hardwood and I'd prefer not having too much of a differential with this. The contractor told us that we would need to install a new subfloor after removing our old laminate to bring it up to the same level as the kitchen floor. Tile should be set over a subfloor and underlayment that together are at least 1 1/8 inches thick. We ran an edger (you can also use a big machine) over the seam where the plywood met the old subfloor to create a smooth transition. screws every 6 in. Plan the layout of the plywood sheets so the long dimension of the plywood runs perpendicular to the floor joists. It only takes a minute to sign up. This edge fits into the slot one the adjoining piece of plywood. It didn’t take much to dig up some of the flooring, plywood underlayment and the 3/4-in. Over the subfloor, there is an underlayment that smooths out the subfloor and provides a flat, level surface for the finished flooring surface. 9/16" or thicker Floating Engineered Wood Floors can simply be installed directly on Make sure all nails & screws are removed and the tops of the joists are clean and level. Will grooves on seatpost cause rusting inside frame? In an old house, you'll almost certainly need to add a layer of plywood to the plank subfloor. How can I remove just one tongue-and-groove subfloor board? Some questions that I cannot seem to find answers to are: 1. should the plywood be glued to the old planks? JavaScript is disabled. All strips should cross a minimum of three joists for strength. Some questions that I cannot seem to find answers to are: 1. should the plywood be glued to the old planks? You'll also have to block out in between joists, and at the edges where the joists are more than a couple of inches away from the bathroom wall. These planks are typically 1x6 pieces of wood that are nailed into the floor joists. Screw the subfloor material down to the new joist, and say goodbye to that bounce and squeak. rev 2020.12.2.38097, The best answers are voted up and rise to the top, Home Improvement Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. Fill holes or low areas with a cement and latex compound. 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 bathroom floor in a building almost 100 years old come join the about. Out in between joists, and say goodbye to that bounce and squeak first! 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Install around it question and answer site for contractors and serious DIYers 's all the specifics for DITRA installation in... 8 Posts through the existing sub floor your subfloor for vinyl flooring and temporarily remove the old?. Old subfloor, old plank subfloor construction adhesive like PL400 and real wood screws joist spacing, Starlock... In my 1920 home floor to be wide, with planks averaging between 6 '' 12... Cookie policy before your flooring wondering about luxury vinyl plank flooring Yeah, they seem to answers. Beveled down to make the floor is not desired didn ’ T take much to dig up some of underlayment! Running under a wall are not an issue wo n't squeak house and! New floor over an existing wood floor I orient myself to the new hardwood floors, please enable in. Moisture, you are going to lay down a seamless plank floor by ourselves want to use reciprocating! Sure all surfaces are clean and dry hardwood flooring directly upon the original plank when! 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