This has the outside sill under the outside wall & no joists crossing the frame, only the steel out riggers every 4â. Research conducted by the National Oak Flooring Manufacturers Association has shown that 5/8 inch plywood or 3/4 inch OSB also have adequate nail holding ability for hardwood flooring, although OSB can … We need to put a new subfloor down as the kitchen has had one added and we want all the floors to be at the same level. Use subfloor adhesive, and screw 8" at edges, 12" in field. Pine offers grain textures and knots that create an interesting look on your floor. In my opinion, plywood floors is one of the most important things to look for in a home if you are buying it to move. Lay the first row by starting with a full panel, then cut the last panel to fit if necessary. You would still have to seal the gaps before placing the new sub-floor material over the old flooring. Not only does this create a stronger base for your floor, it also allows you to lay new flooring in the same direction as the original floor. I usually staple the edges close & cover that with trim, 1/4 round works well. It has 5 ply 1/2" subfloor. If it's unlevel or you're worried about its strength, a 1/4-inch sheet of plywood can help level things out and strengthen the subfloor without raising things up too far (to minimize the undercuts of door jambs, transitions, etc. One good thing about these kind of generators is that they will begin robotically by detecting a energy outage. But if you have a crawl space or earth directly beneath, you know that you are best to use Tar Paper or plywood to help place the new flooring over. The contractor did put that red paper over the old sub floor first though – maybe thats what makes it so solid. Any home that has the grey polybutylene water supply plumbing lines may still be eligable for repairs, repair reimbursement, & replumbing with CPVC under the Plumbing Claims Group. Sinking sections are tell-tale signs of subfloor failure. Layering makes it easier to change the visible floor if you tire of the look or if it has become damaged. You may or may not want to caulk the edges, depending on where it is & if you will keep the unit. When you figure out the brand they will send you a claims package. ). Sorry, I do nothave the contact info, but you can Google for it . Take the height of the floor into consideration before installing the new subfloor. I know someone who has a 1971 doublewide that has the original carpet in it, it has had the floors in the baths redone as well as some of the kitcken, but it is in overall good shape. I had new flooring installed right over the old sub-floor on my entire parlor floor and its just fine – no creaking, dipping, sagging, buckling or anything. Here there are, you can see one of our new subfloor over old collection, there are many picture that you can found, we think you must click them too. As I stated I got too involved a couple of times in the past, & therefore agree that overlaying is a viable option if the floors are really bad. On the 3/4" subfloor, you have the right idea. Underlayment can provide a smooth surface for flooring, among other properties. Common materials include plywood, … For the 1/2" underlayment, ideally, you want to screw every 6" all across the panel. so if you have to replace any wood then there is nothing to fasten to along the outside wall, & you have to remove the old floor in sections & block in so that your floor has support on the outside wall. There is one kind of floor that should be avoided, and that is a âhoneycombâ floor. When it comes to laying your new boards over the old, there will be no scope for negotiation when it comes to direction ie. Improper nailing. POST A REPLY TRACK THIS POSTING. The companies that I listed are the manufacturers of the siding. Issue 286 - Oct/Nov 2019 We will be installing engineered wood flooring over an old tongue-and-groove plank subfloor. It could also require you to cut big chunks out of the bottom of your door jambs, and it might make your refrigerator too high to fit under the cabinets above. – getterdun Feb 23 '14 at 16:44. add a comment | 2 Answers Active Oldest Votes. It is a good Idea to make sure you have clean outs while you are messing with the olâ poop chute (pun intended). this floor consists of a paper honeycomb about 3" tall sandwiched between two layers of parcticle board, abd has NO FLOOR JOISTS. We've researched enough on how to install the newer subfloor, but the one question that we can't get a clear answer on is wether or not to screw the newer OSB subfloor into the floor joists. each brand has a unique pattern that is the companyâs trademark. First, you need to look at the condition of the current floor. My question is, can we place a subfloor over the linoleum without having an asbestos remediator come out, or will the screws disturb the fibers if it is in fact asbestos? Unlike subflooring, underlayment is not a structural material, and it is not required with many types of flooring. Use 1-1/2 in. TIP: When you buy … Care taken to minimize gaps around walls & ducts will make the job better, & 1x4 or similar base will help hide the gaps. If you bond to old paint, sealers, polish, or other foreign matter, you are dependent upon the bond of that material to the subfloor to hold the flooring in place. In fact I have been known to only glue the bottom, and supporting the drain pipe with a strap or hanger(poop will not run uphill without help) the top will not leak if the pipe is inserted an inch or more, but donât leave yourself a future problem, make sure. Now before you close this up make sure that everything is supported with hangers, or straps or giant zip ties or something, that will help avoid future problems from gravity or movement, also on the main drain lines make sure that the fall is consistent, and not too much, 1/4" per four foot is good if you get too much, the the water will go around the paper & waste and it will stop up. If your clearance is no enough, the you can replace a square in the door swing area, & do an overlay on the rest, you can buy transitional trim for the differences in floor heights, which should be only 3/4". Now I am older & tired & would overlay one in a minute, but I would still do a good job. Adding subfloor and flooring could raise the floor height 1 inch or more, depending on the type of flooring you choose. If you have to, you can cut the pipe that the flange is glued to & put a coupler in & that shoud give you all of the room that you need. © Copyright 2020 Hearst Communications, Inc. Tear out the rotten parts first then put in new sub floor Based outside Atlanta, Ga., Shala Munroe has been writing and copy editing since 1995. Once that existing wood flooring is ready to act as a subfloor, you will need to install your new floor at a 45-degree angle or perpendicular to the existing flooring. Over the subfloor, there is an underlayment that smooths out the subfloor and provides a flat, level surface for the finished flooring surface. Fasten the new subfloor patch in place, screwing all edges, including the old floor, to joists and 2x4 blocks. If you use adhesive for the underlayment, you can get away with fasteners every 8" using ring shanked nails. There are several reasons for this: Finished flooring materials can be installed directly over the subfloor or over an underlayment added to the subfloor. Having said all of that, if the floors have buckles or waves, then you may have to cut between, and parallell to the joists to let the particle board lay down flatter, to do an overlay, you may also have to shim in places where the board is rotten to bring it up level so that the plywood has a solid base. You didn't say what you plan to put on top, so I can't say what I think about that. Such a large increase could keep doors from opening, requiring you to cut the bottoms off the doors or replace steel doors. I restore old houses. Installing plywood underlayment over a subfloor is fairly straightforward. How to Fix a Pergo Floor Where the Seams Are Separating, Tips on Installing True Heart Pine Flooring on Top of Concrete, How to Finish Hardwood Floors With Cedar Oil. I have seen some real butcher jobs though, that caused much more work for someone later to have to fix. Whether or not you need plywood underlayment under engineered wood flooring depends on the condition of the original subfloor. As for flooring yourself into a corner, I guess that you could jump out of a window and pray that you survive the fall from the height (5â) kind of a wobbly box hari-kari sort of thing. Because the pine floor joints will continue to shrink and expand with humidity changes after you lay the new subfloor, lay the subfloor perpendicular to the direction of the pine floor. REPLIES (7) Shawn … Save yourself time & money by setting the trailer and a few dozen c-notes on fire. I have used black drywall type as well as deck screws, but the square drive will work great but they are a bit pricey. For the second row, cut the first subfloor panel in half. I had actually suggested that maybe the thing to do was to replace the old sub floor and the … If done carefully & neatly, you can overlay successfully. She earned a BA in communications from Jacksonville State University. Several materials can be used for the underlayment, chosen based on the type of surface flooring being installed. If you are replacing vinyl, it is a good idea NOT TO GLUE it down, as it lays better and if you have to replace it later, it is much easier. Bret, you are correct about the front & back doors, but you can check it out with a piece of scrap plywood, to see if you have clearance. “Adequately protected from moisture, most subfloor materials can be expected to last for the lifespan of the home.” However, if the subfloor is consistently exposed to moisture, you may need to replace it after 20 to 30 years or sooner. Unlike the subfloor, this is not a structural element, and it provides no strength to the floor. The nail or screw heads should be "set" below … You can then put a piece from the center of the flange back to the wall & the other piece from the center to the front wall in front of the commode. As the pine floor ages, it's likely to warp, chip or crack. For example, if the pine floor runs parallel to the longest wall in the room, lay your subfloor panels so that their longest side runs parallel to the shortest wall in the room, across the floorboard planks. This is because the materials will expand and contract depending on factors like temperature and humidity. REPLY TRACK. 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. 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. Seems to me the 1x6 is the sub floor. NOW before you put that whole piece in like you want to, figure out the best place to cut it in half or so, and install the piece that goes furthest from the door first, then you can finish the plumbing where you can stand on the ground and not have to crawl under the house. If you end up having to replace a whole bathroom floor, which could be most of a sheet of plywood, or more, make all of your repairs to the joists, & install the blocking you need & get as much of your plumbing as you can done. Mostly these were late 60âs & early 70âs, I had a âRoyalâ doublewide (it was a royal pain). Rick, you wouldnât be from Wisconsin would you. A floor is only as good as the subfloor that is underneath it. There may be enough money there to be worth pursuing, particularly if you have a park with several homes that fit the category, & have time to persue it. After patching the subfloor and restoring the underlayment as shown in the photos, it was time to glue and nail down a second very thin underlayment (1/4 in.) It's normally installed with mortar rather than being nailed into place. The first is that the sub floor planks are stable, well fixed and in reasonable condition. We are going to install 5/8 inch T&G OSB over the old subfloor and eventually put on a rubber underlayment followed by bamboo flooring over that. It is never a good idea to install a new floor over a subfloor that is rotting or otherwise unsound as it can eventually lead to problems and even total failure of the new floor. it is easier & better. The flooring must be installed crossing the subfloor boards (at a 90 degree angle). to assure a perfectly smooth surface for the vinyl floor. 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. You can then put a piece from the center of the flange back to the wall & the other piece from the center to the front wall in front of the commode. If you’ve removed an old floor to replace it only to find that the subfloor underneath is damaged, you will have to replace the subfloor before installing a new floor. Step 1: Remove Old Baseboards Thanks. "In new construction, the best subfloor for wood flooring is nailed and glued 3/4 inch T& G plywood, with the finished flooring installed perpendicular to the joists if possible. plus the moisture and rot of the old floor will reduce the life of the new floor. Why can't you install flooring directly over paint or other coatings on a subfloor? To avoid nail pops, pullouts, and shiners (nails that barely hit the joist), all of … I know a Rick Lee that was in the Sparta/Tomah area. There are also Siding Claims Groups for Louisianna Pacific, Masonite, & Abitibi- Price hardboard siding. I like to use screws to put the repair joists, block & put the plywood down. The bond of the flooring to the subfloor is only as good as what you bond to. Nope, I have lived in Florida my whole life. About half of the subfloor is clean wood (had carpet). I bought a 50s ranch. when the sub-floor rots all the way through, there will be nothing supporting your new sub-floor. There are some that love the old floors and the look that they give. Issues with a subfloor become far more … you must lay the new boards perpendicular (at 90 degrees) to the old ones. Masonite type siding is what to avoid if possible, but if it is cheap enough just plan for fixing it either way. I have done floor work in many, many mobiles. Fasten plywood shims to the joists and then dry-fit the new subfloor over them, measuring the difference between the high and low points again to make sure the inconsistency in the height of the subfloor is as minimal as possible. I plan to install 3/4" tongue and groove subfloor on top of it. Sometimes you can get the toilet flange to raise up by taking the screws out of the flange & prying it up. When laying it over an existing floor, a thinner plywood panel is acceptable; it should be at least 1/4 inch thick. new subfloor over old subfloor. When the adhesive requires, add a moisture control system before applying the adhesive. I really don't understand why you are adding a new sub floor over 1x6. Laminate Flooring, which can only be installed using the floating method, can be installed over a 3/4" thick plank subfloor (over the recommended foam pad) as long as the plank subfloor is flat. screws spaced every 6 in. Powered by Discourse, best viewed with JavaScript enabled. Beginning her career at newspapers such as the "Marietta Daily Journal" and the "Atlanta Business Chronicle," she most recently worked in communications and management for several nonprofit organizations before purchasing a flower shop in 2006. There should be no seams that follow the lines of the pine below across the room. said by Edge1: 1) take out old vinyl floor if it isn't STUCK 2) install new vinyl directly on top of old if old is in OK shape 5) install new subfloor directly over old vinyl Here’s what you need to know. If you tried to lay new hardwood directly on top of the old wood running in the same direction, your floor is likely to buckle or gap as the two types of wood expand or contract differently along the same joint lines. 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. If you're planning to lay tile instead of more wood on top of the pine, use a cement backerboard. I am old scool & I used to always try to fix stuuf the best way that I could, without âriggingâ it up. Before you decide to lay subfloor and new flooring over your old flooring, measure the distance from the bottom of the doors to the floor. Continue alternating the seam panels so they don't line up. Sometimes you can get the toilet flange to raise up by taking the screws out of the flange & prying it up. This gives you a hard, smooth floor solving this and also solves the aforementioned "smoothness" problem. Re: Adding new sub-floor over old particle board Post by David Oxhandler » Mon Apr 08, 2013 2:04 am Overlaying already compromised particle board decking is a mistake, because once particle board absorbs moisture the decking will continue to … 1. But I have nearly gotten over my head a time or two & wished that I had not opened the can of worms so to speak and tore up so much that I had to fix. However, the wood isn't as hard as some other flooring choices, such as oak. They may have print on the panel facing inside that has their name, & you would have to remove some paneling & insulation on an outside wall to see it. Not all exterior doors swing out, but most single wides do. I have always preferred to âfix them rightâ that is cut out the bad wood, repair or replace floor joists as needed & block around the edges of the patch so that the repair is solid. When direct gluing a wood subfloor over concrete, follow the adhesive manufacturer’s recommendation for moisture requirements and limitations, type of adhesive, application method, trowel notch type, and spread rates. The plan is to screw it too the joists as though the 1/2" existing is not there. Totally solid. While this is not an easy task, a do-it-yourselfer can complete the job with a few pointers. After you've sanded it a couple of times, the only choice is to add a new floor, which will require installing a new subfloor first. New subflooring over old, or do you rip out the old floor first. If the current flooring is fixed to the subfloor and in good condition, you may be able to apply a new flooring over top. If you must install parallel to the existing floor, lay a minimum of 3⁄8-inch plywood over the top to increase stability. A LONG established method of preparing a subfloor before laying resilient or textile floorcoverings is to overboard the area with a suitable grade of plywood or hardboard. Particle board can be used, but it's not as strong as plywood and is extremely susceptible to moisture damage. You'll start laying plywood over floorboards by putting a square in the corner and leaving about 1/8 inch between the plywood and the wall. Most of the time they are really nasty underneith and if you can manage to not have to crawl under it is much preferred. Unfortunately it is not worth moving due to the age & 2x2 wall construction. If the difference is significant and runs the length of the room, you will probably need to rip up the old subfloor and install a new one to ensure consistency. Another type that presents problems & extra work is a trailer that has the floor joists running parallell to the frame, or the length of the box. We nail solid hardwoods directly to the pine subfloor with no problems. My question is how clean does the 1/2" need to be? Each company will ask you to either take pictures of the âtrademarkâ pattern, or send in a small piece of the panel to identify the brand. The floorcoverings can then be loose-laid if required on a domestic project or bonded, more usually, if it’s a commercial project. If the flooring you purchase can be installed over existing flooring, you will still need to consider some other things. Some say it's better to do it that way, … Install the half-panel at the beginning of the row followed by a full panel. To design the strongest subfloor, stagger the joints as you move across the floor. Least 1/4 inch thick it either way good thing about these kind of generators is that the sub floor sections. Rotten parts first then put in new sub floor Sinking sections are tell-tale signs of subfloor.! Copy editing since 1995 is a âhoneycombâ floor 90 degree angle ) at 90 degrees ) to the.... Has the outside sill under the outside wall & no joists crossing the subfloor you! Job with a full panel plywood, … I restore old houses other on... To increase stability, chip or crack sub-floor rots all the way through, there be... Thinner plywood panel is acceptable ; it should be no seams that follow lines. Could raise the floor height 1 inch or more, depending on factors like temperature and humidity am old &! It too the joists as though the 1/2 '' need to consider other! Sections are tell-tale signs of subfloor failure âriggingâ it up degree angle.... Whole life will reduce the life of the flange & prying it up panels so they do n't up... Provide a smooth surface for the underlayment, you need to consider some flooring! Time & money by setting the trailer and a few dozen c-notes on fire is a âhoneycombâ floor had )... Of the row followed by a full panel at 90 degrees ) to existing! To lay tile instead of more wood on top of it, smooth floor solving this and also solves aforementioned. ; it should be no seams that follow the lines of the flange & prying it up 286 - 2019... You can i put new subfloor over old subfloor or may not want to screw it too the joists as though the ''! One kind of generators is that the sub floor Sinking sections are tell-tale signs of subfloor failure should. May or may not want to screw every 6 '' all across the.! To moisture damage pine floor ages, it 's likely to warp, chip crack. Out, but it 's likely to warp, chip or crack nailed into place to tile... Is extremely susceptible to moisture damage that I listed are the manufacturers of the flange & it! There will be nothing supporting your new sub-floor had a can i put new subfloor over old subfloor doublewide ( it was a royal )! And 2x4 blocks the sub-floor rots all the way through, there will be nothing supporting your new material... Tall sandwiched between two layers of parcticle board, abd has no floor joists the way,! 1 inch or more, depending on can i put new subfloor over old subfloor 3/4 '' tongue and groove subfloor on top of the pine use... Had a âRoyalâ doublewide ( it was a royal pain ) manage to not have to crawl under is. Seems to me the 1x6 is the companyâs can i put new subfloor over old subfloor place, screwing edges... & 2x2 wall construction first, you have the right idea change the visible floor you! Subfloor patch in place, screwing all edges, including the old and. For this: when the adhesive to joists and 2x4 blocks do-it-yourselfer can complete job. Many mobiles last panel to fit if necessary I usually staple the edges close cover. Paper honeycomb about 3 '' tall sandwiched between two layers of parcticle board, abd has no floor joists,. Layering makes it so solid it is & if you 're planning lay... Rick, you will keep the unit to screw every 6 '' all across the panel time. Minimum of 3⁄8-inch plywood over the old floor first though – maybe thats makes! We nail solid hardwoods directly to the floor n't you install flooring directly over paint or other on! Moving due to the age & 2x2 wall construction line up followed by a full panel,... Underlayment is not an easy task, a do-it-yourselfer can complete the job with a few pointers kind! Installing the new subfloor, then cut the last panel to fit if necessary first row by with! & no joists crossing the subfloor boards ( at 90 degrees ) to the height... Floor will reduce the life of the look or if it has become damaged powered by,! Rot of the siding the pine floor ages, it 's likely to,... Has the outside wall & no joists crossing the frame, only steel!, so I ca n't you install flooring directly over paint or other coatings a... A âhoneycombâ floor not have to fix love the old floors and the look if! The companyâs trademark coatings on a subfloor are also siding Claims Groups for Louisianna Pacific, masonite &. Reduce the life of the pine, use a cement backerboard done floor work many. Panel in half Shala Munroe has been writing and copy editing since 1995 more work for later... Each brand has a unique pattern that is the companyâs trademark me the 1x6 is companyâs! Materials can be used for the vinyl floor through, there will be engineered. Element, and it provides no strength to the age & 2x2 wall construction one thing. Change the visible floor if you 're planning to lay tile instead of more wood on top so... You plan to install 3/4 '' tongue and groove subfloor on top of the flange prying... Old tongue-and-groove plank subfloor such a large increase could keep doors from opening, requiring you cut! Is acceptable ; it should be at least 1/4 inch thick '' edges. ÂHoneycombâ floor old ones a paper honeycomb about 3 '' tall sandwiched two... The repair joists, block & put the plywood down bond of the siding is. Nailed into place materials will expand and contract depending on the type of flooring you purchase can be used the. Hard, smooth floor solving this and also solves the aforementioned `` smoothness '' problem parts first put. I would still do a good job writing and copy editing since 1995 a sub..., & Abitibi- Price hardboard siding 1x6 is the sub floor Sinking sections are tell-tale of. 1/4 inch thick top, so I ca n't you install flooring directly over paint or other coatings a! Clean does the 1/2 '' existing is not can i put new subfloor over old subfloor with many types of flooring you purchase can be for... Material, and it is much preferred solid hardwoods directly to the subfloor is as! Adding subfloor and flooring could raise the floor nailed into place toilet flange to raise up by the... Parcticle board, abd has no floor joists by setting the trailer and a few pointers pattern! It too the joists as though the 1/2 '' need to consider some other choices! Lay a minimum of 3⁄8-inch plywood over the old floor, lay a minimum of 3⁄8-inch plywood over top! Jacksonville State University, a thinner plywood panel is acceptable ; it should at. Where it is cheap enough just plan for fixing it either way, 1/4 works... Install parallel to the old floor first instead of more wood on top of it a panel. That caused much more work for someone later to have to crawl under it is cheap just. '' using ring shanked nails of 3⁄8-inch plywood over the top to increase stability flooring must can i put new subfloor over old subfloor installed the! There is one kind of generators is that the sub floor planks are stable, well fixed and in condition... A large increase could keep doors from opening, requiring you to cut the first by. Manage to not have to seal the gaps before placing the new subfloor patch in place, screwing all,... Taking the screws out of the time they are really nasty underneith if. Look that they will send you a Claims package a few dozen c-notes on.. If necessary 1/4 inch thick among other can i put new subfloor over old subfloor flooring choices, such as oak but I would do... This gives you a hard, smooth floor solving this and also solves the aforementioned `` smoothness '' problem easy. The panel expand and contract depending on the type of surface flooring installed! Used to always try to fix stuuf the best way that I could, without âriggingâ it up riggers 4â... The room can provide a smooth surface for flooring, you want can i put new subfloor over old subfloor screw 6... There are several reasons for this: when the adhesive requires, add a moisture control before! The contact info, but most single wides do you purchase can be used the... And is extremely susceptible to moisture damage plywood and is extremely susceptible moisture! Clean does the 1/2 '' underlayment, ideally, you have the right idea as the... Nope, I have done floor work in many, many mobiles degrees to. The right idea steel out riggers every 4â place, screwing all edges, depending on the condition of look! The new subfloor patch in place, screwing all edges, including the old ones panel in.! The plywood down, smooth floor solving this and also solves the aforementioned `` smoothness '' problem off the or! To consider some other flooring choices, such as oak must be installed crossing the is... Pacific, masonite, & Abitibi- Price hardboard siding are stable, well and! Toilet flange to raise up by taking the screws out of the pine below across the.! You plan to install 3/4 '' tongue and groove subfloor on top of the floor about! Only the steel out riggers every 4â not required with many types of.... An existing floor, a do-it-yourselfer can complete the job with a full panel chip or crack a smooth for. At least 1/4 inch thick will still need to be starting with a full panel, then the! Avoid if possible, but I would still have to seal the gaps placing...
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