Unlike a concrete subfloor, you can usually knock down high spots on a wood subfloor by sanding, and you can always fill depressions with patching 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, ... Set each sheet in place and tap it along the groove edge with a wood block and sledgehammer to lock the tongue-and-groove joint with the first row, then fasten the sheet. If I replace all of the subfloor, following this method, all of the walls would be sitting on a piece of 21/32 particle board that is cut at the sole plates on all sides, again, would this alter structural integrity of the house? I plan on using 1/4″ HardieBacker as a subfloor for the tile. The porch flooring will commonly have tongue-and-groove and be laid on a sheathing subfloor. Tongue-and-groove edges on plywood make the subfloor strong, as if a single piece of plywood was fit over the entire floor. Sweep or vacuum the subfloor of all dust and dirt. Insert the glued tongue of the new plank into the groove on the existing flooring and drop the plank into place. Thanks for the help Last edited: Oct 20, 2009. Tongue-and-groove edges on many premium floor panels, such as Weyerhaeuser’s Edge Gold ® OSB panels, are designed to self-gap. Step 1 Remove a floor vent using a screwdriver. They resemble sheets of plywood with interlocking tabs and channels on the sides. Step Seven: Using a padded block and soft cloth, tap the new board in place. While removing the old subfloor, mark the locations of the nails on the walls to help you install the new sheets. bought repo with urine damage in osb subflooring. This helps provide more consistent edge support at this connection. You should start out by using an electric drill to drill some holes near the ends of the board. If the subflooring has been glued and nailed into place, it will be more difficult to remove a piece. There is no need to remove the groove. I need to remove a piece of tongue and groove OSB subflooring panel to get some wiring through to my attic. The floor construction uses 3/4″ plywood and I am trying to keep the height to a minimum so my transitions with adjacent flooring isn’t too abrupt. x 23.75 in. Buy 69 or more $ 23.18. Health & Safety Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. The sheets are nailed or screwed in place across the floors joists. Examine the damaged boards and decide how much flooring must be removed. How to Lay Solid Wood Flooring Homebuilding & Renovating. What is the proper procedure to replace with new osb to prevent sagging since … Determine this before you begin. This may not be as durable as other methods, but it’s much more straightforward and often less expensive. Joined: Dec 13, 2006. hi 1320ms - this is my two cents. Apply a bead of wood glue to all four edges of the new plank. Non-discounted retail pricing for: 23/32" tongue and groove OSB subfloor. Limit 90 per order. 5. An old house built before the late 1930s and early 1940s often had straight-edged or tongue-and-groove boards as sheathing, laid perpendicular or diagonally to the floor joists. These subfloors must meet structural requirements. What’s the best way of doing this? Demo that tongue and groove floor, and anything else until you are down to your original subfloor, which will probably also be planks. Using green joists. How to Repair a Tongue -and- Groove Wood Floor This Old . x 4 ft. x 9 ft. For subflooring, you use tongue and groove plywood. On the four foot edges, your seams will fall on joist tops, so no need for tongue and groove. The recommended thickness of the plywood subfloor is governed by the spacing of the joists. Providing you have sufficient crowing space , and high clearance to manipulate long piece of wood. Stop the movement and you stop squeak. tongue-and-groove plywood subfloor was laid in construction adhesive and fastened with nails, but there is one joint that runs perpendicular to the joists and squeaks along its entire length. As for the rosin paper, it may help with squeaks between the subfloors, but you are better off addressing the root cause, which is proper installation of subfloor and hardwood. Use a beater board and hammer to make sure it is fully seated and snug. Regardless of whether the subfloor is single- or double-layer, Armstrong Flooring recommends the following: If the top layer is tongue-and-groove and the strip wood is 3" or less in face width, cover with 1/4" or thicker underlayment panels. The tongue and groove are only along the 8 foot edges. Brent February 20, 2008 at 2:58 pm. 03:56 Part 3 How to lay chipboard flooring Tongue and groove chipboard flooring is a common building material. Reply. Quality installation of a plywood subfloor includes gluing the plywood panels to the floor joists with construction adhesive. 6. Replacing one bad section on a plank floorboard is a relatively simple repair, but there are some caveats. Demo your tile. The subfloors are later used as the base for carpet, hardwood, vinyl, or tile flooring. (22.7 kg) bag of USG Durock™ EXG Concrete Repair Patch. (177) Model# 15114 $ 9 27. Answer. Make sure to fill in the nail holes with wood putty and finish for appearance. Blind Nail – With this technique you can now blind nail the board in place by nailing through the tongue into the subfloor or floor joist. Premium engineered wood panels such as AdvanTech ® subflooring have a tongue and groove profile that is shaped to fit snugly like a puzzle piece within a uniquely shaped groove. Mark the area to be repaired, using the square and a pencil (Figure 1). Set the blade of a circular saw to the thickness. Here are the basics of how to replace damaged tongue and groove boards. Will this do the trick? Learn how quick it is to install yourself. Step 1 - Drill Holes in the Board. When a joist or a bearer are damaged beyond practical replacement , there is an option of placing a new parallel sub floor member next to it and attach it to the healthy and sound part of the existing one. 1320ms, Oct 20, 2009 #1. I can access the framing from the basement below, so I’m thinking the best bet is to screw some 2×4 blocking to the underside of the subfloor to support the joint. Check for squeaks and flatness, and install plywood if needed. The tongue-and-groove edges interlock to resist movement along the panel edges and create an overall stiffer floor. Remove the damaged floorboards using a flat pry bar. Here’s a tip for cutting the groove: Stick the blade inside the groove and cut off the bottom from the inside (or use a table saw). If your subfloor has an overlay, you must replace it along with water-damaged subfloor. Measure and mark a new floorboard to fit into the floor. ANSWER If the T&G OSB subflooring panel has been screwed in place, you will find that you are easily able to remove a piece of the OSB subflooring panel. x 2 ft. x 4 ft.; Actual: 0.435 in. 9) Replacing a joist or sistering. Look inside and examine the cross-section of your existing flooring to determine the thickness and type of subflooring material. Using plywood tongue and groove boards is a fast and simple way to make or fix a subfloor and prep a room for new flooring. Layout, fabricate and install subfloor over existing joists. Small variations in height probably won't be felt under hardwood, but large ones will, and they can cause laminate sheets to separate. 134 square feet: $79.10: $91.01: Subfloor Installation Labor, Basic Basic labor to install subfloor with favorable site conditions. First, the boards tend to run the full length of the room, so a small patch may stick out like a stubbed toe. Use the chisel to pry the severed tongue from the groove in the end of the adjacent floorboard. 2. Part 2 How to level a subfloor Learn how to level out the joists on an uneven subfloor. If it’s on top of another subfloor, remove the tongue-and-groove hardwood to get down to the lowest subfloor level. The following procedures are based on tongue-and-groove flooring laid on a subfloor. Throughout this article, you will hear me mention the use of construction adhesive to reinforce and lengthen the life of the repair. Quantity includes typical waste overage, material for repair and local delivery. 02:12. If the T&G OSB subflooring panel has been screwed in place, you will easily be able to remove a piece of the OSB subflooring panel. But to start off, we will need to remove the tongue so the plywood is tight with the exterior ICF walls. Standard plywood can be used for subfloors, but a better material is 3/4-inch tongue-and-groove plywood subflooring. Step 2 - Cut the Board . TONGUE AND GROOVE REPAIR WITHOUT ACCESS TO THE BOTTOM OF THE PANEL CONT. LiamM New Member. With what are you going to replace the sub-floor? The 3/4-in. If it has overlay, include that in the measurement. Starting in the early 1940s, plywood sheathing became more common, and by the 1960s there were numerous options for sheathing available. It is also easy to replace. After running a chalk line, lay the first sheet in place with the groove facing the line and the tongue facing the starting wall. Squeaks are caused by movement in wood seams between sheets of subflooring, friction noise in tongue and groove or shiplap flooring, and fingernails-on-blackboard rubbing against loosened nails. Subfloor How to lay chipboard flooring Tongue and groove chipboard flooring is a common building material. Add finishing nails to the top and bottom of the new Tongue-and-Groove board. 7/16 in. Spruce Square Edge Oriented Strand Board (3) Model# 50250 $ 25 75. What’s the best way of doing this? I need to remove a piece of tongue and groove OSB subflooring panel to get some wiring through to my attic. Continue fitting in the tongue with the adjacent board until you reach the flooring. 4. 7. Instead, the planks are connected to one another and then placed on top of the subfloor. Oriented Strand Board (Common: 7/16 in. Now look at the data spec sheet for Schluter on what the minimum thickness plywood subfloor is required for your joist spacing. Home repair and renovation projects often call for replacing sections of the subfloor that are water damaged or rotted. To avoid buckling, subfloor panels should be spaced with a 1/8-inch gap at all edges and ends to provide room for naturally occurring expansion. Paul February 18, 2008 at 11:11 pm. 3. In some homes this sheathing actually became the finished floor. A pad is usually placed between the flooring and the subfloor. Oriented Strand Board (386) Model# FG10006 $ 5 08. DRICORE Subfloor Membrane Panel 3/4 in. Most floors in older homes are composed of individual (plank) or interlocking (tongue-and-groove) boards laid together. x 2 ft. x 2 ft. x 47.75 in.) The joints between pieces of plywood on the subfloor might require reinforcing with 2-by-6 blocking if the plywood used did not have tongue-and-groove edges. Reply. Simply fit the replacement’s groove into the existing board’s tongue. Thanks for your reply. E. Mix 6 parts USG Durock™ EXG Concrete Repair Patch to 1 part water by volume, or 2.0–2.5 quarts (1.9–2.4 L) of water per one 50 lb. i treated most of it with enzyme product to rid house of urine smell, however there are about 4 osb boards that need to be cut out and removed, the are warped and swollen and not suitable to install naildown hardwood flooring. 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