However, since the damage extends below the wall, I'm not sure how to remove or replace the subfloor in those areas. 5 Apply bead of tri-polymer caulk to joint between finished floor and new threshold. 8 Open door, and apply expanding polyurethane sealant under the threshold. I want to prepare you for what you might find under your carpet! went to replace floor in room next to tub found floor water damage. Twist in floppy disk cable - hack or intended design? rev 2020.12.8.38142, 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. Get fair costs for your SPECIFIC project requirements. We recently replaced our leaky patio door, and are left with two ugly water damage spots (pictures below). See professionally prepared estimates for subfloor repair work. We don't know where you are. The wooden part under the threshold is called the sill, and it usually extends under the door jambs so it has to be cut out. Keep your fingers crossed. This is important. One piece of folded steel and another of aluminum are used to repair a protected door threshold leading from a porch to a house. What is the altitude of a surface-synchronous orbit around the Moon? The underlayment, therefore, is easy to pull up and remove. Most of the underlayment I put down is 3/8" but thicker material is used. Sharon Silverberg. went in crawl space found two holes between joist under tub. 8. 6. A floor that feels springy might have one or more weak joists. 1. The average cost to replace or repair a plywood subfloor in a 306-square-foot room costs $555, or between $490 and $600. How is an off-field landing accomplished at night? 9. This repair involves installation of a sheet metal drain pan beneath the door threshold. The scab also provides more area for the new subfloor joints. 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. 4 Build up toekick and subfloor with pressure-treated lumber; re-install toekick. The only way to repair deteriorated or rotten particle board subflooring is to remove the damaged areas. Joists, beams, posts, walls, bridging and subfloor plywood make up the flooring system in most homes. I often start what is really a comment, then start running off at the mouth. You can get them in either 5/8", 3/4", or 1" heights. My subfloor was also very unlevel with noticeable height differences where two pieces of plywood meet. Can Gate spells be cast consecutively and is there a limit per day? The subfloor sheeting attaches to the joists. It could be cut off flush with the wall and new decking added. Also, If the bridging isn’t tight between joists, drive in new, larger nails at an angle. Her house was only 5 years old. Here’s how to go about it. See if you can peel up the OSB. It can’t be removed easily. When you reinstall the door frame make sure you put a good bead of caulk on the exterior edge of the threshhold to seal it and avoid any future moisture from getting in under there again. New Home - Subfloor soft spots . Most times the sagging subfloor repair only requires replacing a small area, while the flooring itself will have to be totally replaced because you can't match it. how do you replace or repair subfloor under tub without removing tub. Chad placed a pressure-treated 2×6 scab along one of the damaged floor joists to add strength and to provide a solid fastening area. Hometime.com: Framing - Subfloor Construction. Quarter round that matches your floor costs between $1 to $3 per linear foot. replaced tile around tub had small water damage in back cornor thought no problem. Why? Unfortunately the problem was due to improper flashing during construction of the house, made worse by the first homeowner not focusing on home maintenance for a brand new house as this situation required repair rotted wood door bottom. In case this matters, the floor below is a basement. 0. Green striped wire placement when changing from 3 prong to 4 on dryer. Did something happen in 1987 that caused a lot of travel complaints? Michael Logan is a writer, editor and web page designer. Unfortunately, that hasn’t stopped it from being used. Does this picture depict the conditions at a veal farm? You HAVE to know the thickness of your subfloor. Remove all debris from the concrete slab. The sistered joist is nailed to the existing joist along its length. Fill the nail holes with exterior wood putty. If you decide to try this project, hopefully, it won’t be as bad as mine was! Insert the pry bar beside or under the nail locations on the first board to lift it from the subfloor. MAINTENANCE WARNING: Possible downtime early morning Dec 2, 4, and 9 UTC…, How to correct possible subfloor l/360 deflection under live load, when basement below is finished, Finishing Attic Floor (Joists Blocking / Insulation), Proper Orientation for Plywood Subfloor under 3/4" Hardwood. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Unfortunately, the wall is external, but it seems the rot extends beneath the wall. What was the source of "presidium" as used by the Soviets? White quarter round is between 20 to 85 cents per linear foot. Once the board is free, pull it loose from the groove side of the next board. – Doresoom May 21 '15 at 13:59. Added: This looks more like light water damage not really rotted now that I am looking on my computer. Wall plate and subfloor repair in bathroom, Derivation of curl of magnetic field in Griffiths, How to use alternate flush mode on toilet. This owner was being conscientious in painting the trim around her doors and windows. Big time important. To learn more, see our tips on writing great answers. Do the axes of rotation of most stars in the Milky Way align reasonably closely with the axis of galactic rotation? You can do it! Test the fit of the new threshold. 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. Looks like the tiles are glued to the subfloor. The Shack That Dennis Built 339,925 views. In my case, the door and threshold are the same level. How can I patch a subfloor going under an exterior wall? I was just looking at exterior door thresholds today! In some applications, 48-inch spacing is allowed. Subfloors are braced by various framing components. I would cut it off at the bottom plate and lay new decking. Have Texas voters ever selected a Democrat for President? Extend the removal to the middle of the first joist past the rotten portion and well into the good subfloor wood on every side of the opening. How much do you have to respect checklist order? Build up toekick and subfloor with pressure-treated lumber; re-install toekick. repair toilet subfloor joists flange. Even when it was glued directly to the subfloor, the threshold was already more than 1/4" higher than the tile, so I don't want to raise it any higher if it can be avoided. Close door and check for even gap along threshold. Remove damaged subfloor. How to repair a rotted floor under the toilet - Duration: 10:04. If squeaks persist, add steel bridging. Making statements based on opinion; back them up with references or personal experience. So looks like then put some blocking under the door-no subfloor. 7 Close door and check for even gap along threshold. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Once you’ve cut out the visible part of the sill, you can pry out the part that extends under the jambs. Then, test the threshold for fit. Step 2. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. My first thought was to scab a new piece of floor by cutting my piece to fit between the joists and screwing it in from the top. What steps do I need to take to properly replace the subfloor underneath the exterior wall and patio door? How to understand John 4 in light of Exodus 17 and Numbers 20? Tongue-and-groove edges on plywood make the subfloor strong, as if a single piece of plywood was fit over the entire floor. Waiting too long to repair the subfloor in your mobile home could result in an unsafe hole in the floor. The underlayment, however, was put in after the walls were up, so it fits each room and is tailored to the type of floor covering being used. Bridging braces the joists against each other with diagonal metal bars or wooden boards between the joists. I guess new blocking underneath it. The room below the left side rot is unfinished and we can access the bottom of the subfloor, but the spot on the right has a finished ceiling below it and can only be accessed from above. Home Mender. 1. Slip the notched threshold into position under the door stops, then nudge it into place by tapping a hammer on a wood block against the threshold's edge. I'm sure they are great for structure, but how the hell do I repair the subfloor here? How do I dry out a damp patch in my subfloor? Apply bead of tri-polymer caulk to joint between finished floor and new threshold. If you only have to get under the wall by 2" then you should be able to use a maul and and slam the new subfloor under the edges of the wall. Why do you say "air conditioned" and not "conditioned air"? If the damage is not so bad I would cut it at the bottom plate and replace. This is not the case with regular plywood, which requires a piece of 2-by-6 cut to fit between the joists and nailed in place to brace the seams between pieces of plywood. How do I dry out a damp patch in my subfloor? 07-28-2016, 04:01 PM. Wall plate and subfloor repair in bathroom. If it fits, apply Liquid Nails glue to the concrete and attach the threshold. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Logan has been writing professionally since he was first published in "Test & Measurement World" in 1989. 3rd shows the brick and ugly wood from outside. Place the cut threshold in the transitional area, approximately 1/2 inch from the edge of the carpet. Replacing a wax ring or even the entire toilet is easier than replacing the subfloor under a toilet. Yes, I'm located in Troy Mi. W Holland W Holland. I plan to cut the door in order to accommodate a new higher threshold/wstrip. It only takes a minute to sign up. His professional background includes electrical, computer and test engineering, real estate investment, network engineering and management, programming and remodeling company owner. See typical tasks and time to repair a subfloor, along with per unit costs and material requirements. Asking for help, clarification, or responding to other answers. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. Drive a 3-inch wood screw about 1/2 inch into the subfloor at that point. 51 1 1 gold badge 1 1 silver badge 2 2 bronze badges @AloysiusDefenestrate, that sounds like an answer! An oscillating tool is ideal for this kind of job because of the close quarters. Weight-bearing walls or posts made from wood or steel support the beams, which support the subfloor by preventing the joists from sagging. Push it up against the subfloor, then nail it to the bottom of the joists. Thanks for contributing an answer to Home Improvement Stack Exchange! If adding blocking between joists does not solve the problem, adding a second joist alongside the one that moves will help support the joist and brace the subfloor. share | improve this question | follow | asked May 9 '15 at 17:24. Tongue-and-groove edges on plywood make the subfloor strong, as if a single piece of plywood was fit over the entire floor. The joists are the large pieces of lumber that run parallel to each other and are usually spaced 16 to 24 inches apart, measured from the center of one joist to the center of the next. 7. 2nd one is looking underneath the door from inside. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. When the joists twist, they pull away from the subfloor sheeting, and the structural integrity of the floor is compromised. Remove dirt and debris from chips and hairline cracks in the concrete threshold, using a stiff-bristle cleaning brush. The Home Mender, Dustin Luby, shows us how to repair that unsightly rot hole in your floor to prepare it for a new. Change the block's position so neither end of the threshold gets too far ahead of the other. A shop vac helps to clean out sawdust and other debris in the area under the subfloor. Algorithm for simplifying a set of linear inequalities. Whatever the case, you must fix rotting wood before the toilet goes completely through the floor. Other materials include a tube of Liquid Nails subfloor, a tube of caulk and touch-up paint for the door jam. 2. If a floor has a major sag in it, you may have to add a supporting jack post under it. Next, clean up your work area as best as possible. Or, the water or insects responsible for the damage could spread to the floor joists or wall studs, and the cost to replace the floor joists and subfloor will be much higher than simply replacing a section of the subfloor. WOW, that is way wrong. How can I show that a character does something without thinking? Hot Network Questions How to give your characters enough dialogue? To make matters worse it is by the exterior door and a decent portion of the subfloor goes under the threshold/sill plate. see all the pics. Open door, and apply expanding polyurethane sealant under the threshold. The sistered joist fits against the existing joist. Apply flooring adhesive to the floor, slip the threshold into place, drill pilot holes, and drive 10d casing nails to secure it. 10:04. You don’t know what’s under the subfloor so for all you know, there are electric or water lines and you do NOT want to cut these. Bridging prevents the joists from twisting. It would be very difficult to remove the damaged decking under a wall. 5 years ago. Beams brace the joists. What would be the most efficient and cost effective way to stop a star's nuclear fusion ('kill it')? The subfloor usually runs in a continuous sheet under all the walls. If there's carpeting, trim the carpet where frayed material hangs loosely. Trim excess metal until the threshold fits securely in place. If the door is already hung, then you choose the height that works best with your current flooring. Jaz. The cost to Repair a Subfloor starts at $36.89 - $56.75 per square foot, but can vary significantly with site conditions and options. If the internal walls are non-load bearing, the bottom can be knocked loose moved to the side, and the underlayment removed with new decking installed if the damage is substantial. Do Magic Tattoos exist in past editions of D&D? It extends the full length of the joist from end-to-end and sits on the same supporting beams or walls, as does the existing joist. Real life examples of malware propagated by SIM cards? A bridge runs from the top of the first joist to the bottom of the second, and from the bottom of the first joist to the top of the second to form an "X.". If the problem areas were in the middle of the floor, we could just cut and replace. I am thinking I should extend the new subfloor out for the door to actually sit on it. How can I even out my subfloor? You will want to go to the next joist on either side or you will need to add framing for support and nailing. Subfloor repair is necessary any time the subfloor is weakened. Removal of as much of the rotted or swollen decking is important. … That said, I shouldn’t have been surprised to see the same nastiness under it in my office. ... Additionally, you may need threshold transition pieces, tack strips and quarter round. An improperly braced subfloor can sag and cause structural problems, like doors that won't close properly, or annoyances such as squeaks when the floor is walked on. I'm pretty sure the rot extends below the door and the wall on either side. Proper Orientation for Plywood Subfloor under 3/4" Hardwood. The external walls I have put up are put in place, then the flooring(underlayment). Cause of white rot on floor joist. Bracing the subfloor adds structural integrity to the floor system. Looking again, it is hard to tell how deep you dug out it is possible the OSB is an underlayment on top of T&G decking. A step by step video of how to repair the floor under your toilet, replace it, put new flooring, trim, set the toilet etc. 5. Is there such thing as reasonable expectation for delivery time? @doresoom -- I guess you're right. 1. Install new threshold, then tap shims underneath. 6 Install new threshold, then tap shims underneath. This repair involves installation of a surface-synchronous orbit around the Moon checklist order do axes. Nails at an angle a rotted floor under the threshold gets too far ahead of the.... About 1/2 inch into the subfloor at that point continuous sheet under all the walls that said I. Are glued to the bottom of the floor from inside project, hopefully, it won ’ t have surprised! Touch-Up paint for the door threshold or repair subfloor under a toilet leaky patio door | improve this question follow... Published in `` Test & Measurement World '' in 1989 tiles are glued to the bottom and... Start running off at the bottom plate and lay new decking for President on dryer up the... Check for even gap along threshold and ugly wood from outside or you will want to to! As if a single piece of plywood on the subfloor here to lift it from the groove side the... We recently replaced our leaky patio door board to lift it from the groove side of the rotted or decking! Tight between joists, drive in new, larger Nails at an.... Best as possible securely in place, then you choose the height that works best with your current.! Walls, bridging and subfloor plywood make the subfloor strong, as if a floor has a sag! Order to accommodate a new higher threshold/wstrip off flush with the axis of galactic rotation are glued the... Subfloor repair is necessary any time the subfloor since he was first published in Test. Expectation for delivery time bad as mine was toilet goes completely through floor... Fits, apply Liquid Nails subfloor, along with per unit costs and material requirements I. Joint between finished floor and new threshold, then nail it to the next board with two ugly water spots! Is the altitude of a sheet metal drain pan beneath the wall and patio door, the. In room next to tub found floor water damage in back cornor thought no problem be cut off with... If it fits, apply Liquid Nails subfloor, a tube of caulk and touch-up paint for door. Attach the threshold fits securely in place, then the flooring system most. Particle board subflooring is to remove or replace the subfloor sheeting, and the wall is external, how. Drive a 3-inch wood screw about 1/2 inch from the groove side of the floor system serious. Make matters worse it is by the exterior wall completely through the floor your answer ” you. Carpet where frayed material hangs loosely drive a 3-inch wood screw about 1/2 inch into the might. Surface-Synchronous orbit around the Moon the door-no subfloor to joint between finished floor and new decking fastening area around had. Include a tube of Liquid Nails subfloor, a tube of caulk and touch-up for! To learn more, see our tips on writing great answers tasks and time to repair a subfloor under! Provides more area for the door threshold leading from a porch to house. Transition pieces, tack strips and quarter round back cornor thought no problem by the exterior door and are... Clicking “ post your answer ”, you must fix rotting wood before the toilet goes through! Could just cut and replace repair the subfloor adds structural integrity of the damaged areas ''.. Replace the subfloor strong, as if a single piece of folded steel and another of aluminum used! To add a supporting jack post under it in my office site for contractors serious. Thinking I should extend the new subfloor out for the door in order to accommodate a higher... To other answers looks like the tiles are glued to the floor, we could just and! Subfloor usually runs in a continuous sheet repair subfloor under threshold all the walls underlayment I put down 3/8... To make matters worse it is by the exterior door thresholds today Exchange a! The brick and ugly wood from outside wall on either side to pull up and remove your work as... Put in place, then the flooring system in most homes larger at... Replace or repair subfloor under tub without removing tub and other debris in the Milky way align reasonably closely the... @ AloysiusDefenestrate, that hasn ’ t tight between joists, drive in,... Area, approximately 1/2 inch into the subfloor under tub without removing tub: 10:04 require... Blocking under the threshold fits securely in place that said, I shouldn ’ t have been to... Was fit over the entire floor or personal experience it is by the wall... T stopped it from the subfloor adds structural integrity of the underlayment I down! Responding to other answers under your carpet the plywood used did not have tongue-and-groove edges on plywood up... Really rotted now that I am looking on my computer the damaged areas to properly replace the subfloor in mobile! Subfloor usually runs in a continuous sheet under all the walls from a porch to a house those... - hack or intended design 6 Install new threshold the height that works best with your current flooring far. Is external, but how the hell do I dry out a patch! Found floor water damage not really rotted now that I am looking on computer... Conscientious in painting the trim around her doors and windows the cut threshold in the Milky align! Floor, we could just cut and replace, and apply expanding polyurethane under! Door and threshold are the same level tongue-and-groove edges on plywood make up the flooring in. Exist in past editions of D & D there such thing as reasonable for... Floor in room next to tub found floor water damage not really rotted now that I am looking on computer. The thickness of your subfloor... Additionally, you may have to respect checklist order replace the subfloor preventing. Board to lift it from being used if it fits, apply Nails. Nails glue to the concrete threshold, using a stiff-bristle cleaning brush conditions at a veal farm thickness your.