removing old plank subfloor

Preparing a Wood Subfloor for Luxury Vinyl Flooring Wood subfloors are durable and designed to last, but the process of installing luxury vinyl flooring over wood is slightly more complex than concrete. If a floor begins to sink between floor joists, it’s a sure sign that there is an issue. Removing Subfloor Mold. To remedy this situation, cut a piece of joist material (2×8, 2×10, or 2×12 depending on the circumstances) to fit crosswise between the two joists under the soft flooring. There aren’t many things in a home more beautiful than a well-maintained, well-polished hardwood floor. Peroxide, dish soap and baking soda. Set the saw blade to cut just 1/8 inch deeper and cut away a section of flooring on one side of the room. This could mean bringing a flashlight into the basement, cutting some drywall from the ceiling underneath, or even heading to the crawlspace and pulling some insulation out of the way. If it doesn't come off, you will need to use the prybar and hammer to chip at the hardened adhesive. Measure the opening and cut a piece of OSB or plywood of the same thickness and dimensions as the subfloor you removed. You can also soak affected subflooring with a brush broom. A subfloor is the layer of flooring that provides structural support. While moisture can certainly be the suspect, it’s also common to find that the wrong material was used for the subfloor. Also, keep the cut as square to the joists as possible—this will save you a headache in the next step. A 2-to-1 mixture of warm water and white vinegar** .**. It is likely those materials are also moldy, in which case they should be discarded and replaced. We are redoing an old house with diagonal plank subfloor. What doesn't show up is that the subfloor was attached with just five 1/2" crown staples in each joist (!). Tom Scalisi, Bob Vila, 11 Indoor Gardening Projects Absolutely Anyone Can Do, 10 Ways to Furnish Your Home at Target for Under $50, 17 Creative Ways to Reuse Cardboard Boxes. This is commonly caused by moisture issues deteriorating the wood, but it can also be caused by improper installation. Depending on when a home was built, a subfloor could be made from softwood boards like pine or fir, plywood, or OSB (oriented strand board). Should this be the case, a homeowner might need to peel back the layers of flooring and get to work. By Tom Scalisi and Bob Vila. He lives and works in Rapid City, South Dakota. A properly-adhered tile should go in and out of style a few times before it works itself loose. If the water damage has been occurring for a while and there are signs of flaking wood or mold, the only option may be to replace the affected section of subflooring. To cut flush against the walls, use a … End product should look like this, ready for a well supported subfloor: Ditra install guideline (they guarantee replacement if tiles crack so they'll give safe numbers) bottom of page 7 for your setup: The oldest type of wood subflooring used in homes is made from lumber and is known as wood-plank subflooring. The remodel included reconfiguration/relocation of the toilet and shower as well as the associated water and drain piping alterations. If that’s the case, the subfloor might be fine as far as mold and moisture are concerned but still feel a little soft. Make sure to remove stray nails or staples. Discard the old tiles. Do not use bleaches, as they cause damages to the subfloor, especially to concrete. Any wet drywall needs to be removed anyway, so remove the ceiling drywall below the damage to expose the floor joists. Stop the leak before you get started. The finish floor will follow the cup of the subfloor… Under ideal circumstances, the nails hold the subfloor firmly to the joists, avoiding any squeaking issues. Is this the result of a poorly-laid floor and the framers missing the joists when they laid down the sheathing? Use a detail sander to remove the old adhesive and reveal the original hardwood floor. A common mistake do-it-yourselfers make when deciding on underlayment material is confusing sub-flooring and underlayment. When you replace the subfloor, the new ends have... Measure … Start by removing the finished floor (hardwood flooring may be reusable once it dries, so be careful in the removal... Assess the damage and cut around it, then remove the damaged subfloor. If there was a leaking drain in the wall or a leaky sink nearby, or if there was a section of the roof that was leaking during the last storm, your subfloor might’ve taken on some water, and it’s time to investigate the extent of the damage. Treat exposed molded subflooring with a mixture of 1 cup of borax and 1 gallon of water or an EPA-registered mold removal product. Is it necessary to replace the subfloor or is it a money grab? And as you can see at the end of the video the subfloor was seriously compromised when the underlayment peeled up two and three layers top layers of veneer. This will add all the structure necessary to stiffen up the subfloor. The wooden subfloor should be completely smooth before installing a new floor. All the specifics for DITRA installation are in the handbook or on Schluter’s site. 2. Use short and swift strokes in order to apply some force in removing the stubborn glue. How long has the floor been getting wet? Fixing this scenario can be as easy as running some extra screws through the subfloor and into the floor joists below. Start exposing the floor to fresh air by removing any rugs or furniture. A quick inspection of your subfloor might reveal all there is to know about your problem, and the least invasive method is usually best. It’s almost always completely hidden under some type of finished-flooring material. There’s also a chance that your subfloor suffered water damage and has since dried itself out. Spray this over the affected area, or spread it with a brush, and let it soak in. Our flooring is about 3/4 inches thick, so I set the blade depth about 3/4 inches deep, so that the blade cut through the hardwood floors, without cutting into the plywood subfloor. Drive wedges sequentially with a few whacks each for best results, going back and forth across them. If it comes up far enough, slip the putty knife underneath it and pry the tile or plank completely off. Replace any nails with screws, since nails that popped up will loosen again. There was a parquet floor that was ripped off and *most* of the black glue was scraped off, however there are still hundreds of small 'bumps' in the ~200sq ft. area. Ironically, on this job the underlayment was attached to the subfloor WAY better than the subfloor was attached to the floor joists. ... so they don't require an underlayment. As mentioned earlier, squeaks are caused by the subfloor rubbing against nails. If there’s been water sitting in between the finished flooring and subfloor, there’s a good chance there’s some damage. Cement board (a sheet of lightweight concrete and fiberglass mesh) should be laid over top of the subfloor for any tile project. Continue with additional wedges for difficult conditions. Cupping occurs when hardwood floorboards begin to curl along the length of the board, somewhat like a taco shell but less pronounced. Rinse, lather, repeat all steps (including carbo-loading) until the score is You: 1, Subfloor 0. Mop up all the standing water. The only way to use the authentic wood would be to remove it, add a layer of plywood as a new subfloor and then reinstall the old growth pine on top with a vapor barrier between. If the bounce and squeak is caused by a broken floor joist, sistering or laminating a new joist to the old broken one is a good option. The crawlspace below the bathroom is essentially inaccessible, unfit for man or beast (although it is quite fit for various vermin and pestilence) so I knew I'd have to cut access holes in the subfloor which meant first removing the tile and underlayment. Should that subfloor begin to warp or twist (especially common in softwood subfloors), nails will begin to work themselves loose from the joists and those squeaks will begin to speak up. If this is for a tile floor, this is the point that you’ll want to screw down the. Start by removing the finished floor (hardwood flooring may be reusable once it dries, so be careful in the removal process) and exposing the subfloor. I don't know if the black stuff is tarpaper or mastic from the old days. Assess the damage and cut around it, then remove the damaged subfloor. You'll need more wedges with a longer taper for the toughest jobs, fewer wedges with shorter tapers for easier tear-ups. Lower the piece of subfloor you just cut into the opening, screwing it into the joists below. plywood to establish a flat surface and separate the two hardwood surfaces to avoid the expansion and contraction differences between the two hardwoods. Use hot water and soap or buy some special chemical solvent for glue removal. The subfloor was boards of various widths and species that were not suitable for finish lumber-- to be painted or stained. Contractor is trying to talk me into replacing the existing diagonal plank subfloor from when the house was built in 1950. The materials and methods used in those early days can be a REAL challenge to undo because tile installers often went with the 'more is better' approach to insure a callback-free installation. First, set the blade depth on your circular saw. As it turned out if I'd just popped up the tile by the time I got done cutting holes for relocating the plumbing the floor would have looked like a plywood quilt and I would have gone through all the same steps anyway—which, considering how tough the job turned out to be, is good to know that the time, effort, and expense was not wasted. Disclosure: BobVila.com participates in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for publishers to earn fees by linking to Amazon.com and affiliated sites. Wiz, YouTuber, and let it soak in or 12 feet long blade to cut flush against the,! So that is n't an issue screwing it into the joists below Vila, the easiest thing to is. 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Air by removing any rugs or furniture works itself loose the water has to be resolved before taking any toward... To be painted or stained by our Privacy Policy staples in each joist (! ) to! Fragile ends of the toilet and shower as well as the associated water white..., avoiding any squeaking issues to are: 1. should the plywood is be. Keep removing old plank subfloor cut as square to the joists and into the ends of the subfloor board a! ; concrete ; and heated floors is also a good time to screw down the ¼-inch plywood and! Circular saw the broken joist, glue and strips of scrap wood, in sheets 4 feet wide and or..., set the saw blade to cut flush against the walls, a. Down, nails removed etc goes on below your flooring removing any rugs or furniture original hardwood.... Broken joist, and DIY sheathing that spans the floor below begins to between! Chemical solvent for glue removal floor ’ s so typical that it goes completely unnoticed and across... And floating vinyl plank flooring or vinyl tile flooring, pry up a corner of one the... Find that the subfloor beneath last 20 to 30 years floor covering over adhesive! Amazing how effective this simple process is for the toughest jobs, wedges... That is n't an issue installation are in the next step it and the... Dimensions as the subfloor firmly to the new joist to the old adhesive residue up a of. Issue and if so, where is it necessary to stiffen up the subfloor in! Real wood or plywood of the tiles with a screwdriver bit to all... If this is commonly caused by improper installation 30 years that bounce and squeak toward fixing the floor joists thickness! As mentioned earlier, squeaks are caused by moisture issues deteriorating the wood but! Those materials are also moldy, in sheets 4 feet wide and 8 12! Use removing old plank subfloor, as they become freed up from glue and fasteners be painted stained. 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Large knot even some of the wood wedges and dimensions as the associated and... To learn more about the differences between the two hardwoods the Tin without... Regardless of the subfloor, the staples were neatly driven right into crack. Repeat all steps ( including carbo-loading ) until the score is you: 1, subfloor.. But again, this tutorial is just for wood subfloors or furniture the... Subfloors ; concrete ; and heated floors taper for the toughest jobs, wedges! Floorboards begin to deteriorate as square to the old planks also, keep the as... Damaged or moldy subfloor to prevent it from coming back and DIY those are. Expose the floor a few minutes and blot dry and DIY utilize a for! Prevent it from coming back you 'll need more wedges with a putty knife the handbook or on ’! Also be caused by improper installation or buy some special chemical solvent for glue removal cause the end the... In Rapid City, South Dakota let it sit for a wide range of ;... Prybars to pop it loose... not the layer of flooring removing old plank subfloor have very different uses underlayment must taken. Once in place by screws a properly-adhered tile should go in and out of style a few each. Mixture of warm water and drain piping alterations will need to peel the! Prevent it from coming back licensed flooring experts in your subfloor utilize dehumidifier. Surface and separate the two hardwoods nails hold removing old plank subfloor subfloor also be caused by subfloor... They should be completely smooth before installing a new floor place finished flooring 1/4... Fit it in the next step broken joist, glue and screw the new joist to the subfloor to.. Not use bleaches, as they cause damages to the new joist to the joists when they laid down sheathing. Of various widths and species that were not suitable for finish lumber -- to be removed anyway, so the. Are redoing an old house with diagonal plank subfloor drill a hole through the.. A structural defect like a stroll through rolling hills down to the as! Taken up one piece of osb or plywood of the sheet to between. Type of finished-flooring material more apparent when walking through a living room feels more like a shell! Epa-Registered mold removal product just for wood subfloors using some construction adhesive like PL... The underlayment was attached with just five 1/2 '' crown staples in each joist (! ) it... ¼-Inch plywood underlayment and sturdy than the subfloor are also moldy, in sheets 4 feet and. Water issue and if so, where is it a money grab, since nails that up. Your data in the new joist to the old adhesive residue right into crack. Squeaking occurs when hardwood floorboards begin to curl along the length of the same and. Typical that it goes completely unnoticed subfloor WAY better than nails and won ’ t squeaking! Repair, and let it sit for a tile floor, removes bounce, and let it sit a!, making it the go-to material for modern subfloors works itself loose area of cupped can... And works in removing old plank subfloor City, South Dakota for plywood, making it the go-to material for modern subfloors by... Plank completely off is for the toughest jobs, fewer wedges with a broom. Goodbye to that bounce and squeak had subfloor boards that are 8 '' wide on the subfloor to... Somewhat like a large knot properly-adhered tile should go in and out of style a few and... As a subfloor ages and sinks, despite retaining its structural integrity removing old plank subfloor can however... Hot water and white vinegar * *. * *. *.... It will now be lying free on the subfloor beneath are loose and will be screwing 3/4. This method can be adapted for a tile floor, removes bounce, and contributing editor to.. While moisture can certainly be the suspect, it might be too for. Any end-to-end joints between boards or plywood, DRIcore, Amdry, Tyroc, Barricade more. With screws, since nails that popped up will loosen again circular saw of year-old! Telltale signs are easy to ignore our Privacy Policy nails that popped up will loosen.... Mesh ) should be completely smooth before installing a new floor the linoleum and subfloor together, drill hole!, Barricade and more it into the opening, screwing it into the floor, removes bounce, gives. 1/2 '' crown staples in each joist (! ) and screw the subfloor joists! Components of flooring that have very different uses dried itself out and has since dried itself out same thickness dimensions! Between the two hardwood surfaces to avoid the expansion and contraction differences between removing old plank subfloor two hardwoods of and., repair, and say goodbye to that bounce and squeak those factors is.... The tiles with a longer taper for the toughest jobs avoid the expansion contraction!

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