Replace Your Old Uneven Floor Cheap and Easy.We show you how to replace your uneven flloor or subfloor. Some area looks wavy. Patch and Level a Concrete Subfloor Preparing the concrete floor: Before pouring the self leveler there is some prep work required. Hope that makes sense. After uninstalling the laminate, for the third time, it was time to get to work leveling the floor out so that the boards would install as they were designed to. If you’re replacing an old floor with a new one, your first task will be to get rid of the outdated flooring material. This article provides detailed instructions for leveling a subfloor based on our project. But if you cover the uneven subfloor with self-leveling compound before installing your wood flooring, your new floor will be even and level. If you install wood flooring directly over an uneven subfloor, your new wood floor will be uneven as well. Drive a screw every 6 to 8 inches along all of the joists. How to Install Laminate Flooring on an Uneven Surface. A floor that is uneven in spots but does not have an even slope across the entire floor, is likely to be caused by bulging or loose plywood that has been used for your sub-flooring. You may freely link This job is a good example. Plane the high spots on the joists in your subfloor. The first is to lay two layers of 3/8-inch plywood over the slab without fastening or gluing them to the slab. wood. Do you have any other recommendations that we can look into to make the subfloor more even? Unless you’re an experienced contractor, it may be best to leave tile removal to the professionals. First remove any loose and chipping concrete. Layer #3: the finish floor layer #1 The support: Concrete Slab, Floor Joist or Floor Trusses . Fasten the new subfloor patch in place, screwing all edges, including the old floor, to joists and 2x4 blocks. View our Privacy Policy here. A plywood subfloor will bridge any minor waves in the existing floor, and leveling compound would help, too. It's actually a very simple process. The key to a beautiful, long-lasting hardwood or laminate floor is a well-prepared subfloor. Took up carpet in new home to my brother to find 9X9 tiles with a little un... My landlady decided that I should have a new refrigerator. If you want to use an uncoupling membrane instead of cementboard, you may need to add another layer of … Copyright© I own a home built in 1883(we think) about three years ago. Polyurethane subfloor caulk is an alternative when you expect some movement, but such cases are rare. Before taking steps to level a floor, you must find out why it’s not … Look at the board where it touches the subfloor and see if there are any dips, bumps or otherwise uneven areas. Add Supports. In some cases, you may need to add a second layer of plywood subflooring (followed by cementboard) to make the floor stiffer. Leveling an uneven subfloor leads to an even wood floor. Sloping Floors in the Second Story. The joists run from the front of the house to a steel I-beam in the middle of This works best if you have a … Project Overview: Uneven OSB Subfloor The subfloor beneath our first floor is 5/8' oriented strand board (OSB) laid over 2 x 10 joists that are spaced 16 inches on-center (o.c.). They would have blamed in on your house condition. This type of condition is also oftentimes accompani… One layer is laid, and the second layer is stapled or glued perpendicularly or diagonally over the top. If you do replace your subfloor with 3/4" T&G CDX, you won't need an underlayment and you can maintain a nominal elevation of flooring throughout. Bottom: Joists. DoItYourself.com®, founded in 1995, is the leading independent When you install laminate flooring, the subfloor surface has to be completely flat. Floating Floor – The Best Floor For Uneven Surface. For a solid wood subfloor: This is a situation you might encounter in some older homes. We welcome your comments and Website operating Bro’s Flooring Plus is here to help you when you need subfloor repairs in the South Bend area. An uneven floor can be a frustrating problem to have in a home. Most floors are laid over or supported by either a concrete slab, floor joist or floor trusses. This is especially common in old houses that have had Whether you're installing a hardwood floor on the first or second floor of a building, you need a solid subfloor that won't sag and that will hold nails. You will have to make sure your joists can handle the addition of considerably more weight from the plywood subfloor and any floor coverings. For that reason, any subfloor filler you use does not have to be particularly elastic. I hired a contractor to install Bruce hardwood floor 3/8″ thick. CTRL + SPACE for auto-complete. I used a scraper and lightly hammered any spots that sounded hollow underneath to loosen any weak pieces. The bigger issues arise when the subfloor is uneven, such as small waves or big dents like we see in old refurbished industrial floors or basements. In finding uneven floors in your home or in a home you're thinking of purchasing, you will probably want to know what may be causing this condition. The most common cause of uneven floors is sagging or crowning floor joists. You may need to rip up and replace existing plywood, or simply tack the existing plywood down more securely. A floor that is uneven in spots but does not have an even slope across the entire floor, is likely to be caused by bulging or loose plywood that has been used for your sub-flooring. You may consider this all too expensive and may now want to return the wood, which should be an option. Sorry for the long post. A mud sub floor over wire mesh and felt is the only way to ensure a proper foundation. Part 2 How to level a subfloor Learn how to level out the joists on an uneven subfloor. The subfloor is made of particle boards. I assume I would need to level out the floor first, but a general contractor told me it would be very expensive to pour concrete in my basement and also suggested that a good subfloor … Simply hire a carpenter to remove all the particle board, sister the joists, if they are out of level, and install new 3/4″ plywood subfloor. In this video you'll see how you can do plywood subfloor leveling using the plywood sheets. Uneven floors on the second story or first story can point to structural damage due to foundation problems, such as settlement or shifting. Previous Step Next Step. screws spaced every 6 in. As hinted, it is hidden from the view of homeowners and occupants of the rooms and buildings wherein they are utilized. 10-04-2009, 10:53 AM jdddd : 3 posts, read 17,343 times Reputation: 10. To remedy this problems you can either use a self-leveling product, or use shims between the joists and your plywood sub-flooring. Whether you’re planning to replace an existing floor or not, a hump in a subfloor requires removing the problem before it worsens. Write CSS OR LESS and hit save. Stripping tile can be a messy, laborious, time-consuming job. The bathroom has a clear slant, but no noticeable cracks in the tile or grout. Floor cracks; Mold and/or rot in your crawl space; Uneven floors are rarely caused by problems with the floor itself. In addition to the structural properties of a mud sub floor it also takes out any imperfections in the existing floor. Replacing uneven floors. Whether your subfloor is uneven, rotted or water damaged, sustained termite damage, or any other damage.. contact the floor repair Grand Rapids, MI specialists at Bro’s Flooring Plus by calling 1-855-649-4657. Whether your subfloor is uneven, rotted or water damaged, sustained termite damage, or any other damage.. contact the floor repair South Bend, IN specialists at Bro’s Flooring Plus by calling 1 … In that case, knowing how to properly flatten a subfloor before the flooring installation is essential. TABLE R505.3.1(1) FLOOR TO FOUNDATION OR BEARING WALL CONNECTION REQUIREMENTS a, b; FRAMING CONDITION: BASIC ULTIMATE WIND SPEED (mph) AND EXPOSURE: 110 mph Exposure Category C or less than 139 mph Exposure Category B: Less than 139 mph Exposure Category C: Floor joist to wall track of exterior wall in accordance with Figure R505.3.1(1) 2-No. The first floor seems fine-- it is a concrete slab with a surface crack in the garage, but no obvious problems on the exterior slab or brick. Carpeted floors with a wooden subfloor. This floor. Trim (as needed) and place the next sheet in the first row. Bro’s Flooring Plus is here to help you when you need subfloor repairs in the Grand Rapids area. How to Repair a Bouncy or Sagging Floor ... How to Repair a Bouncy or Sagging Floor in the Middle of the Room. A floor that is uneven in spots but does not have an even slope across the entire floor, is likely to be caused by bulging or loose plywood that has been used for your sub-flooring. The c... Hello, I am working on converting part of my basement into an office. Some area looks wavy. If floor sloping is limited to the second story of the house (that is, there is no corresponding slope to the 1st-story floor), then the reason could be damage to the beams or joists that are holding up or supporting the floor of the second level. Concrete or wood? If the floor beams and joists are made from wood, like the ones above a crawl space, they will usually bend rather than crack. First remove any loose and chipping concrete. The minimum recommended floor thickness is 1 1/8 inches, which you can achieve on a 3/4-inch plywood subfloor by adding a layer of 1/2-inch cement board. Right now it's a poured concrete floor, but it's pretty uneven...lots of little high and low spots. Leveling uneven floors on second floor (hardwood floors, foundation, fireplace, insulated) User Name: Remember Me: Password Please ... You do not want to shim in between the joists for the existing plywood subfloor will simply flex in the span and the shims won't do as much good. Determine the Underlying Problem. Layer #2: the sub floor layer. Below, you can sister the joists and add a few adjustable columns to strengthen the joists to handle the additional weight. A hump in a subfloor … It is recommended that you rough up the concrete. As the posts slowly rot and melt into the floor, the house settles accordingly, bottom to top. It may not look like the case, but often you might pull away your old carpet to discover the floor is uneven and bumpy. Hi gang. Part 3 How ... Repeat across the floor to find all the high spots. If the floor slants irregularly, cut strips that bridge the cap at each floor joist. In this video you'll see how you can do plywood subfloor leveling using the plywood sheets. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. There is another floor underneath this. Time it takes to install a hardwood floor: Several days to 2+ weeks. They came & ripped up the carpet today & discovered that the sub-floor is very uneven, by about 1/2″ at certain point. They now said we have to bring in a general contractor to make the floor even before they will continue. 9' by 4 1\2' and 3\4" on dininig room floor my sems … They came & ripped up the carpet today & discovered that the sub-floor is very uneven, by about 1/2″ at certain point. 03:56. The subfloor is made of particle boards. I am putting down laminate flooring in the second floor of our house built in 1983. Uneven floors on the second story or first story can point to structural damage due to foundation problems, such as settlement or shifting. If the floor has too much … Shimming the joists will work, but if you have the clearance you can leave the existing subfloor in place and add another layer of subfloor with shims in between. About a year later, I had a structural engineer come for a verbal inspection. Newel post: steel attaching plate question. to this site, and use it for non-commercial use subject to our terms of use. A floor that slopes from one side all the way to the other side indicates that a sagging foundation may have caused the sagging. Hardwood is inflexible by nature. Check the degree of sagging by examining your floor. Use a pry bar to pull up hardwood floors one section at a time, or unfasten carpet or laminate and roll it up from one end. Project Overview: Uneven OSB Subfloor The subfloor beneath our first floor is 5/8' oriented strand board (OSB) laid over 2 x 10 joists that are spaced 16 inches on-center (o.c.). I got the stereotypical home inspector who missed a lot of problems. They were going to glue down the hardwood. Grinding. I've been a lot of 1980s and older 2-story homes where the second floor is "unlevel" but the first floor (slab) isn't. problems contact [email protected] If the subfloor cannot be brought into square or leveled and the floor joists need to be replaced, this can become a major project. Subfloor is simply a rough piece of material which is laid as a basis upon which the finished floor shall be installed. A Level Hardwood Floor Requires A Level Subfloor. This is on the second floor. They now […] I ask because I am not following the inspectors asessment. This will expose the subfloor underneath, which is where most leveling problems lie. • Floating subfloor: There are two common methods for this. Uneven Floors Are Typical in Old Houses. They now said we have to bring in a general contractor to make the floor even before they will continue. If … A plywood subfloor will bridge any minor waves in the existing floor, and … Use 1-1/2 in. The subfloor is made of particle boards. The first floor seems fine-- it is a concrete slab with a surface crack in the garage, but no obvious problems on the exterior slab or brick. First, measure the difference between the high and low points of the floor. They came & ripped up the carpet today & discovered that the sub-floor is very uneven, by about 1/2″ at certain point. When you are dealing with uneven floors, one option that you have is to use self-leveling compound. suggestions. I don’t know why your hardwood floor supplier did not tell you all this before you bought the wood. Either case it’s a floor carpentry job, that is out the expertise of these installers. The direction to which the floor slopes will almost always be where you will find the cause of the unleveled floor. Review the information below to help you determine what might be causing your uneven floors. However, the reality is our subfloors are often slanted, bumpy or uneven. Apply bonding agent and floor leveling compound on top of the existing floor. Some area looks wavy. Use a brush to sweep down the joist and remove any nails or other metal from the timber. 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.) Second floor uneven I'm looking at a home for which the second floor has some areas that are noticeably uneven. They now said we have to bring in a general contractor to make the floor even before they will continue. Subfloor Causes. Concrete slab. Do this by multiplying the room’s length by its width. I am wanting to put down hardwood flooring and have a slight problem. If there are uneven floors on the second story and first floor simultaneously, foundation settlement is almost certainly the cause. A sinking floor typically means that the subfloor wasn’t installed correctly. Painted Plywood Sub-floor: State of the Floor Address - Thistlewood Three and a half years ago we painted the plywood sub floor. Question: I hired a contractor to install Bruce hardwood floor 3/8″ thick. Find the joists and put the shims on top of them. Hardwood floor installation can take anywhere from a few days to more than two weeks, depending on demolition, wood type, the condition of your subfloor, total square footage of the project and installation method. You can leave linoleum or sheet vinyl in place if it’s difficult to remove or if removal would damage the sub-floor. They came & ripped up the carpet today & discovered that the sub-floor is very uneven, by about 1/2″ at certain point. Do this by multiplying the room’s length by its width. In our situation we laid the subfloor parallel to the joists which creates a weaker subfloor. Please let me know if we can put down a layer of light weight concrete called “quick level” & then plywood about 5/8″ thick on top of that. Every wood floor poses its own challenges, but installing one can be even more difficult if the subfloor has peaks and valleys. The subfloor is 3/8 to 1/2 inch plywood and there is give in almost every joint of the subfloor … How typical is this and might it be part of a larger structural problem? For this project, we were installing a new floor over an existing wood floor in a building almost 100 years old. But if you cover the uneven subfloor with self-leveling compound before installing your wood flooring, your new floor will be even and level. What Is A Mixed Media Floor? To test for the flatness for laying laminate flooring on an uneven subfloor, lay a 10-foot long 2x4 board. Yep. Usually, this occurs in conjunction with other foundation problem signs such as sticking doors and wall cracks. You may need to rip up and replace existing plywood, or simply tack the existing plywood down more securely. With this information you can better determine whether to expect more sagging and whether it might be possible to prevent it from worsening. Before you install your plywood subfloor, first calculate the room’s square footage to find out how much flooring you’ll need to buy. You may need to rip up and replace existing plywood, or simply tack the existing plywood down more securely. Installing Strip Flooring and Avoiding Future Squeaks and Pops, Product Review: Steam Mops on Wood Floors. I painted the plywood sub-floor because the carpet was stinky and gray and full of .. Don't let other options persuade yours. Use 1-1/2 in. All information is provided "AS IS." Fasten the sheet to the floor joists with 2 1/2-inch screws driven through the old subflooring and into the joists below. screws spaced every 6 in. The second layer of plywood on a subfloor is an underlayment, not another subfloor. Attach leveling strips. To do this, simply cut several leveling strips the same size as the original strip. To level your floor, in this case, you will need the help of a contractor. The original builder very likely built the condo on some type of foundation (concrete usually in our neck of the woods) and that foundation has now settled creating uneven floor joists to which the subfloor is attached. Some area looks wavy. Self-leveling compound is similar to concrete, typically coming in large bags in powder form. Here are five reasons you need to have the floor level and smooth before installing hardwood floors. In do... Just pulled out some selfs-sticking tiles from an upstairs bathroom floor. If this were a high traffic area bearing load, you would want to do it correctly). They were going to glue down the hardwood. However, we are laying 3/8″ plywood on top of this OSB, and 3/4″ hardwoods on top of that for a very high strength floor. I’ve heard too many horror stories about humpy subfloors. You can then have a glued or nailed down hardwood floor installed. Leave a 1/8-inch gap between the ends of … submitted to our "DoItYourself.com Community Forums". A floating floor is easily installed without using glue, staples or nails, making it an exceptional DIY floor option. The joists run from the front of the house to a steel I-beam in the middle of The cause is usually settling or shifting of the foundation underneath the floors. Uneven floors are rarely caused by problems with the floor itself. There are several ways you can fix the problem. The subfloor is made of particle boards. Another option that you may have is to grind down the floor. Proper Subflooring for Wood on Second Floor. The key to a beautiful, long-lasting hardwood or laminate floor is a well-prepared subfloor. However, with masonry foundations, soil issues can actually cause foundations to break. If the hump in the floor feels spongy or gives underfoot when you walk on it, the most likely cause of the problem is underlayment that has come loose from the subfloor. When you need more strength than one piece of timber can give you, you can ‘laminate’ two bearers together with glue and nails. I used a scraper and lightly hammered any spots that sounded hollow underneath to loosen any weak pieces. As a test, firmly push a metal probe or screwdriver into the post at the floor line. If you’ve noticed a small area of your floor which is raised or has wood planks protruding upward, you may have a hump in the subfloor. Subfloor bearers need to be strong enough to hold the rest of the floor up. Installation of floating floors are easy and fast because planks click or snap together quickly … Apply a generous amount of construction glue on the surface of one bearer. home improvement and repair website. Or upon removal of the particle board, you find another layer of old subfloor shim it level and install a thinner 1/2″ plywood. Often the reason for the second-floor sloping relates to framing issues, poor engineering, past … If you install wood flooring directly over an uneven subfloor, your new wood floor will be uneven as well. Step 2. I'm looking at a home for which the second floor has some areas that are noticeably uneven. If you’re a home buyer seeking that perfect historic or old … Most flooring pros would agree with Glenda Taylor's advice on the Bob Vila website to rely on floor leveling compound almost exclusively. Usually, this occurs in conjunction with other foundation problem signs such as sticking doors and wall cracks. The subfloor is 3/8 to 1/2 inch plywood and there is give in almost every joint of the subfloor not on a joist. Cement board follows the flow of the existing floor and so will the tile. When walking across a carpeted floor … The subfloor is the decking installed on top of flooring joists; the finished floor is then installed on top of the subfloor. In a perfect world, the subfloor (floor on which you will be installing the floor) would be even and smooth. What you need to fix an uneven subfloor: Liquid primer – treat floors first before putting down compound; Self-leveling compound; 2”x4” Instructions 1. An uneven floor may be the result of a poor foundation or a shift in the foundation that causes part of the house to slope. This article provides detailed instructions for leveling a subfloor based on our project. Place a second bearer on top of the first and slide it around to spread the glue. This compound can potentially be utilized on a concrete slab or a wood subfloor, and it works well when you are dealing with dips in the floor. How to apply oil based polyurethane WITHOUT the pits and bubbles. 1. Second Layer Below Floors: Subfloor. All rights reserved. How to Tell if Your Floating Subfloor ha... How to Tell if Your Floating Subfloor has Rot. The bathroom has a clear slant, but no noticeable cracks in the tile or grout. These hills and valleys will eventually lead to unwanted bouncy spots, squeaks and groans in the final laminate floor. 02-14-2011, 12:07 PM K'ledgeBldr : Location: Johns Creek, GA. 14,048 posts, read … Patch and Level a Concrete Subfloor Preparing the concrete floor: Before pouring the self leveler there is some prep work required. Use screws to secure the leveling strips to the floor every 16 inches. Questions of a Do It Yourself nature should be If the entire slab is uneven, you may have to use a self-leveling concrete compound to smooth it out. Some methods may require a contractor while others could be a DIY fix for a handyperson. Planning A Mixed Media Floor, Flooding and Hurricane Damage To Wood Floors, How To Protect Wood Floors From Furniture Scratches, Fortifiber Building Systems Group: Aquabar® B and Other Moisture Barriers, Working in a large Ballroom with Wood Floors, Wood Species: An Examination Of Ivory And Grapia, Wood Floors In Basement Warping Due To Water Damage, Learn the Top 8 Best Methods to Hardwood Floor Cleaning. If the floor beams and joists are made from wood, like the ones above a … Trim a Window Seat Bench with Recycled Molding. Can you better define "uneven flooring"? Uneven Floor (subfloor, vinyl, foundation, townhouse) User Name: Remember Me: Password : Please ... What's the sub-floor? The cause is usually settling or shifting of the foundation underneath the floors. How high is the door t/hold from the actual interior floor? We do not want regular concrete because it would be too heavy. Joists If your floor is significantly sloped towards one direction, this could be an indication of structural damage such as foundation damage or settlement. I was considering installing a 1/2" plywood as a second subfloor, but I can't figure out how to level the second subfloor. Screw the strips into the floor joists or subfloor. It is recommended that you rough up the concrete. On the top side of the floor, another fix-it idea to lay down new hardwood over the existing floor. It basically complements the other kinds of flooring material. If the second story of a home slopes or sags and the first floor is level, then there is a pretty good chance that the cause doesn’t relate to foundation problems but to other issues. This is a structural issue than can be cured but not always cheap to do so. Before you install your plywood subfloor, first calculate the room’s square footage to find out how much flooring you’ll need to buy. But to answer your question, no, you should not try the quick fix of pouring lightweight concrete on the particle board, it will be cracked up in no time. You are lucky they halted the job, before going ahead and creating a poor installation. He did point out the uneven floors but noted that was typical of a home this age. 1995-2018 MH Sub I, LLC dba Internet Brands. If this area is mushy, punky, or rotten, you may have found your problem.