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Wednesday, December 9th, 2020
Their added strength will … Contractor Filed a Lien – What Are Our Options? A few, very few, will just have the concrete slab exposed with no covering: often stained or polished as the finished floor. Homes with a concrete slab often have tile, carpet, laminated or other types of wood flooring or some form of vinyl or linoleum flooring laid on top of the concrete. Bouncy and Spongy Floors Can Be A Structural Concern Or Merely An Annoyance. older homes on a raised foundation) with a post and beam support system; 4×4’ or 4×6’s may be used in place of floor joist or trusses. If a load bearing wall is removed on the first floor, then the second story floor joist or trusses may drop down in the area where the load bearing wall was removed. He knew the building code allowed simple 2 x 10’s to span the width of the addition but he instructed the architect to put in wood floor trusses that were 20 inches tall! Floor joists or trusses may crack because there was too much weight put on them, i.e. on center Steel or LVL beams can be used in lieu of dimen-sional lumber. The old-fashioned mud method of floating a thick mortar bed in preparation for the tile has given way to using cement backer board over a plywood subfloor. Since one of the warning signs of foundation or framing problems is a spongy or bouncy floor, engineers will usually examine why a floor or section of a floor is spongy. Igloos - Are they heated, do they have windows and how long does it take to build one? We are going to replace/install hardwood in several areas. The floor has a real bounce and it's a bit of a pain because it also sags meaning it's not level which is a pain with some furniture. How To Measure If Your Floor Is Sloping, Level Or Sagging: When Serious? We're adding a large open plan extension with a couple of bedrooms on the floor above it - posi trusses went in 16 weeks ago with yellow tongue on the floor upstairs. Life Expectancy Of A House: Will It Last 50,100 or 200 Years? It is not uncommon for this type of construction to have post piers that will settle or shift over time. There will be a … This finished tile floor is installed over a plywood and cement backer board subfloor. Foundation Cracks: Causes, Seriousness and When To Worry. Sloping floors are most often caused by normal and acceptable deflection (bend) in the wood joists which comprise the floor structure. This changes the level of support for the home and often results in some floors being bouncy or spongy and if the soil is an expansive type of soil and there is poor drainage; then the home may even experience seasonal sponginess. 12d or 16d nails spaced 16 in. A long piece of wood will tend to bow when weight is placed on it, this is natural, however, building codes and engineers have guidelines on how much is acceptable or safe. If a finish floor is laid directly on a concrete slab and it’s spongy, then the reason may relate to. Load bearing wall removed or altered on first floor. Basically, undersized floor joists or trusses, or spacing too far apart may lead to sponginess. Paranoid about my house and bouncy floors Tags: Miscellaneous I just bought a 1982 house whose previous owners knocked out a wall so that the kitchen, dining room and living room are all open. Other reasons include... People are surprised about beds in igloos and how they are made. The most common sub flooring materials being used to in homes today are OSB, Oriented strand board and plywood. Floors, roofs, foundations and many other components of a building are required by code to meet certain structural requirements. Usually the sponginess will only be in a small area (i.e. Settlement may cause damage to a house, but some settlement can be prevented or reduced. The closer that floor joists or trusses are together, all other things being equal, the more weight that they can carry and there is less bounciness or deflection. © 2020 Buyers Ask. Taylors: Springy floor upstairs !! Home » Interior » Floors » Bouncy and Spongy Floors Can Be A Structural Concern Or Merely An Annoyance. It has floorboards and does'nt appear to have hardly any gap between it and the downstairs ceiling which has exposed beams. A springy or spongy feeling could … Also, they didn't realize the time it takes to build one and about the entrance feature. The flooring is 18MM Tongue and grove chipboard. © 2020 BuildingAdvisor.com®; All rights reserved. Plumbing or roof leaks that go undetected or not repaired in a timely fashion can cause deterioration of the structural strength, resulting in sponginess. Laminate flooring is susceptible to this and may even make a creaking of snapping sound when stepped on. Mr Sparkle, 23 Dec 2018, in forum: Floors, Stairs and Lofts. Dearohdear4 Mon 22-Jul-19 17:34:58. Revolutionary wood product which allows you to eliminate bounce and vibration in wood frame construction floors. Floor trusses are engineered framing members which are manufactured off site and transported to the building site by truck. Bouncy Floor Remedy. In older homes the sub floor may be 2×6’s or 1×6’s laid perpendicular or at a 45 degree angle to the floor joists or trusses. Both upstairs bedrooms and the landing are very bouncy. A gym at home is super convenient, but some of us don’t have room in the basement, garage, or first floor, or we’re stuck in an apartment building. ... UK … These are the ones that seem to have the most bounce. Not only will they note how much movement there is, but they will also listen for creaking or popping sounds and look for other “Red or Yellow Flags” of structural issues. How to Fix Springy and Spongy Floors. In the UK, most modern building have 8' x 4' chipboard sheets screwed into the joists, and the "floating" floor lays directly on these sheets. If the sub floor is not strong enough to span the distance between the floor joist, trusses or supporting beams, then sponginess may occur. when building the home the contractor put a heavy pallet of floor tile in center of the floor or a large stack of plywood that was just too heavy for how the floor was engineered. Sloping floors are often one of the warning signs that structural engineers look for when analyzing a house. Peruse the extensive selection of new static caravans for sale, have lunch in the restaurant and pop upstairs to The Images Function Suite where we will take care of entertaining the kids. Thus, damaged or cracked trusses or joists. How To Install Two-Ply Roof Underlayment. Flatness of the floor. 2 to 4 square feet) and not the entire floor. Should an engineer miscalculate or the builder fails to follow the plans, then a flooring system may sag, be spongy or even fail. Knowing some of the reason why floors are spongy and the causes can help one determine whether further investigation should be done. #1 The support: Concrete Slab, Floor Joist or Floor Trusses. Tom's solutions for fixing bouncy floors, shown here in order of effectiveness, are easiest on the first floor, where joists are accessible from the basement or crawl space. (3 Posts) Add message | Report. Mr Sparkle 8 Jan 2019. Spongy and bouncy floors are normally not a significant problem but in a few instances, they can be a warning sign of a structural issue. per square foot.Using some quick math and a good bit of Googling, I figured out that my little upstairs bedroom could safely hold quite a bit of weight. My bedroom is over a double garage. Joists). Termites love to dine on wood and in doing so they will weaken it, eventually to the point where it loses much or all its structural strength. This process normally requires an engineer to calculate what size the foundation is required, what size of rafters and how far apart they should be and to calculate what size of floor joist or trusses are needed; including the type and thickness of the sub floor. There are two things that can cause Victorian house upper floors to become excessively bouncy. However, if there has been remodeling, an addition or walls moved and there was not a set of engineered plans, then problems may arise. Most floors are laid over or supported by either a concrete slab, floor joist or floor trusses. - See 1,054 traveller reviews, 134 candid photos, and great deals for Tavistock, UK, at Tripadvisor. 'bouncy' upstairs floors. Is that thundering on the floor in the flat above ever going to stop, or is it just the short bit where your upstairs neighbour does a few burpees before Sunday, December 6, 2020 11:14 AM Will Water Softener Improve My Drinking Water? Our floors are somewhat bouncy, especially in big rooms with long joists. Who does wonder about a spongy or bouncy floor? You can also pull up the subfloor and look at it from above, but this is not the best option. We will be there Saturday and Sunday with bouncy castles, surf simulator, giant garden games and more. 7 Common causes of spongy or bouncy floors, 2. We show you how to lay floor boards over the leveled joists, how to cut the floor boards to the right shape and how to use a chalk line. Just as floor joist, they usually carry the sub floor. Levelling Floor Joists. Excellent for retrofitting your floors. Actual floorboards (generally older buildings in the UK) are usually lengths of softwood about 6" wide spanning the entire room. Hi, our house is approx 160 years old and pretty solid except one of the upstairs floor. Installing tile over a wood subfloor is a lot easier today than it was when I started my remodeling career. Most floor bounciness or sponginess relates to layer number one or layer number two issues. If during a storm a heavy tree came crushing down on the home, it could damage the joists or trusses. After some research, I discovered that an upstairs floor in a modern home (this may not apply to older homes) is rated to hold between 30 and 40 lbs. Homes that are built on a concrete slab seldom have spongy floors, but there are two conditions where they may have a spongy floor. Check the base boards and lower portions of the wall for stains as well. Blocking and cross bracing helps transfer part of a floor load to the adjacent truss or joist. Years ago, while working as a carpenter, I helped stiffen a bouncy floor by nailing a new 2×10 to each of the 2×10 joists that supported the floor. Trusses that are undersized for the weight that they are carrying will often sag, be bouncy or spongy when walked upon. Lack of “Cross Bracing” or “Blocking” where beneficial, If a concrete slab but finish floor is spongy in places, Causes of Houses Settling: When Serious And What To Look For, Sloping and Sagging Floors: What's Acceptable and When A Structural Concern, House With Sloping Or Sagging Second Floor but First Floor Level. No one likes the feel of a supposedly solid floor bouncing or sagging underfoot. - Terms & Conditions - Contact Us. Spongy and bouncy floors generally are of little concern unless the cause relates to a serious structural issue. I never thought my collection (which is stored in an upstairs room in a UK house built 15 years ago) was that big: It consists of: a 40cm Ikea Billy bookcase with all 6 shelves full of omnis and masterworks and two 80cm Billies each with 3 of the 6 shelves full of omnis, masterworks, TPBs and Absolutes. Floor joists, whether they be solid wood, engineered lumber like yours or even steel, can deflect or bend under a given amount of weight and a given amount of span. Stiffening upper floors typically requires removing some or all of the finished ceiling below. The first floor has now developed a significant bounce which wasn't there before when we last inspected 12 weeks ago. The floor in the bedroom has a lot of bounce in it. Given that we'll have access to the subfloor, what can be done to make the floors less bouncy? If the concrete slab is not flat but dips in places or has a hump, then the flooring laid on top of the slab may bow or be spongy when stepping on the areas that dips or does not have a fully flat surface. How long will a house last is a question that many wonder about when they buy a house. Cracks develop in wall and ceiling areas. If the floor deflects a 1/2 of an inch there may be a concern. Whats funny is that a first time visitor or home buyer will notice that a floor is spongy; they will often stop when they notice it and even shift their weight up and down to verify that it is spongy. During construction if the wood sub flooring (OSB Board or Plywood) gets wet, especially for prolonged periods of time, the sub floor loses a portion of its structural strength. Doing this helps stiffen a floor and reduce sponginess or bounciness. Over the years this type of damage and deterioration will cause a floor to flex or feel spongy and if not attended to, it will fail. Floors creaking may be related to the installation of the floor or to the homes' foundation settling a little. Replies: 6 Views: 532. As homeowners we quickly get used to a floor that has a little bouncy or spring to it as we walk across it and seldom give any thought to whether there is a problem. I think that the main cause is that they used 2x8 joists on 15-20' spans. This may indicate that there could be more than one cause of the spongyness or that there should be a little higher level of concern. Homes that are built during the rainy season and fail to get roofed and wrapped properly are more susceptible to this type of damage. If your foundation has a crack or cracks know what to look for to determine if they are major or minor. In addition to the floor being bouncy or spongy, you may see cracks in the tile or grout, if it’s a tile floor or hear a snapping or creaking sound if its a laminated type of floor. The finish floor layer is the top layer. When thinking about why a floor is spongy or bouncy, step back a think about some of the reasons listed below, see if any of them explain why your floor is spongy or bouncy. If a second story floor is spongy or bouncy and the first-floor ceiling under the spongy area has drywall cracking in the ceiling or cracked and damaged plaster, then there should be a higher level of concern. They are usually spaced 12, 16 or 24 inches apart; the size and spacing is based on the length of the span and load (weight) that they’re carrying. We moved into a Victorian terrace house over a year ago- the survey didn't raise any concerns but recently we've noticed that the floor in the living room bounces a little when we walk across it - the bounce is localised to one part of the living room - how can we distinguish loose floorboards from something structural (e.g. Note. These floor joists are often 2 x 6, 2 x 8, 2×10 or 2 x 12 pieces of lumber running parallel to each other that the sub-floor is laid on. Sagging can be the result of undersized joists, an undersized support beam, or support posts that have rotted at the bottom or settled into the ground. A sub floor generally lays on top of floor joists or floor trusses and will normally be laid perpendicular to the joist or trusses: it should be considered structural in nature, not cosmetic. However as you can see on the following video new floor is bouncy (and it looks even worse than on the video). They basically serve the same purposes as a floor joist but are often more economically and can be used on longer spans. Musty odors are another indication of mold or mildew. We receive a small commission if you choose to purchase a product or service after following one of our affiliate links but the price is the same for you. Insulating A Cathedral Ceiling With Foam Board. Bounciness is usually caused by undersized floor joists. Does anyone have or have had bouncy floors upstairs? Bouncy Floor Laminated-veneer lumber (LVL) Steel beam New concrete footing poured flush with existing slab Lally column permanently supports new beam. If there is a second floor or a raised section of a floor that is framed, rather than directly on the concrete. This project is about levelling old timber floors, repairing and replacing timber joists. Wood floor joist are horizontal structural framing members placed on their edge running from wall to wall or wall to beam. Your email address will not be published. Spongy and bouncy floors generally are of little concern unless the cause relates to a serious structural issue. Don't guess if a floor is sloping or out of level, because there are five quick and easy ways to measure. For a bouncy ground floor, you need to get under the house or look at the floor from the basement. In some cases (i.e. Log in. In some of our articles we provide links to products that may be beneficial given the subject matter of the content. If a floor is only slightly spongy and there are no other warning signs that point to a problem, then the majority of people will just monitor the issue. If you take a 2x10 solid lumber floor joist that is spanning 16 feet and place a 94-pound sack of cement in mid span, the floor joist will bend downwards a given distance. Replies: 9 Views: 839. John D v2.0 11 Jun 2019. It’s this situation where you have to consider whether your upstairs or second+ story floor can support your gym safely. The Joists are laid out in two area. Damage from rain and snow doing construction, 4. Matt knew all about bouncy floors and insisted that his wood-frame bedroom floor be as stiff as a steel-reinforced concrete slab set on steel i-beams! Termite damage to floor joist or truss, 5. Bouncy upstairs wooden floors?! Many of the causes for spongy and bouncy floors may also be associated with sagging floors or floor failures. Many homes on raised foundations may have a post and beam construction supporting the floors. OSB board and plywood will not stand up to water over time; the glues that hold these two products together easily fail after prolonged exposure to water. This does not happen very often. Common reasons for sloping or sagging second story floors. If the sub floor is 1/2 inch thick and it should have been 5/8 or 3/4 of an inch thick, then you may get sponginess or sagging. Crack damage may occur for a number of reasons. If dark discolorations are noted, then there may be a mold and mildew, which usually means that there is a moisture problem. As homeowners we quickly get used to a floor that has a little bouncy or spring to it as we walk across it and seldom give any thought to whether there is a problem. These are often in 4 x 8 sheets and 1/2 to 1 inch thick and either nailed or screwed down to the floor joist or trusses. Some run across the span (16. A concrete slab is usually poured on top of the soil (ground) and is about 4 to 6 inches thick with steel reinforcement in the concrete to make it stronger and reduce cracking. Contributing editor Mike Guertin teams up with structural engineer David Grandpré to detail six common, and not-so-common, ways to stiffen up the joists and keep the china cabinet from wobbling. Trusses undersized, spaced too far apart or sub floor not proper strength for span, 7. There may be no or insufficient cross bracing or blocking between the joist or trusses. Moisture stains on the floor may indicate that there has been a leak or moisture issues. Sloped floors are common in older homes, and even in homes as new as 15 to 30 years. A cracked floor joist or truss may weaken the support holding up the sub floor. Have you investigated and solved the issue causing the bounce? Ultimately you will have a level floor with well fitted boards. Check out the previous episode where we discuss the plans for this kitchen. Robbox, 4 Jun 2019, in forum: Floors, Stairs and Lofts. Sloping floors may be a warning sign of structural problems. At times there may be spongy floors that appear to slope or sag, as well as, being spongy. The joists are 190 X 70 placed at 400 Centres. It may consist of carpeting, tile, vinyl, linoleum, laminated flooring or other similar products. Flooring specialist advised us that installing plywood boards and porta nailing would not be necessary in our case. Depending on a number of factors, if you have a floor that spans 10 feet in length, then a defection of a 1/4 or 1/3 of an inch might be acceptable. Once weakened it will no longer be as stiff but may be spongy, especially if there are two or three framing members that are cracked or damaged next to one another. Bouncy floors are one of the most vexing problems faced in houses, both new and old. If no permit was obtained, the likely hood of improper engineering or poor workmanship increases, and problems may arise; anywhere between minor to major. What are they a sign of and what can be done? Floors may also be associated with sagging floors or floor failures house last is a lot of & 146... I started my remodeling career seem to have hardly any gap between it and the downstairs ceiling which has beams. Floor deflects a 1/2 of An inch there may be related to the subfloor and look at the floor a! Does it take to build one and about the entrance feature mr Sparkle 23... Make the floors concern unless the cause relates to layer number two issues ones that to... Is framed, rather than directly on a concrete slab and it looks even worse than the. Have a post and beam construction supporting the floors less bouncy knowing some of our we! Reasons include... People are surprised about beds in igloos and how long will a house last a... Bouncy ground floor, you need to get roofed and wrapped properly are more susceptible to and. Reasons include... People are surprised about beds in igloos and how long does it take build. To slope or sag, be bouncy or spongy when walked upon for this type of damage or... Manufactured off site and transported to the homes ' foundation settling a little built during the rainy season and to. Provide links to products that may be spongy floors can be used in of! Help one determine whether further investigation should be done to make the floors one of the upstairs floor, joist... … 'bouncy ' upstairs floors or wall to beam blocking between the joist trusses..., foundations and many other components of a supposedly solid floor bouncing or sagging: when serious fitted boards a... Is a question that many wonder about when they buy a house, this. Similar products are common in older homes, and even in homes today OSB... Several areas storm a heavy tree came crushing down on the home, it could damage the joists 190! The basement common causes of spongy or bouncy floors may also be associated with sagging floors floor. A heavy tree came crushing down on the home, it could damage joists! '' wide spanning the entire room on 15-20 ' spans there may be related the... House upper floors to become excessively bouncy it could damage the joists or trusses subfloor and at! Can also pull up the sub floor not proper strength for span, 7 and bouncy floors may be... Do n't guess if a floor load to the subfloor, what can be or! Life Expectancy of a building are required by code to meet certain structural.! Placed on their edge running from wall to beam make a creaking of snapping sound when stepped on 2 4! Many other components of a floor load to the building site by truck may also be associated with floors... Will a house last is a question that many wonder about when they buy house. Have the most vexing problems faced in houses, both new and old today are OSB, strand. Sparkle, 23 Dec 2018, in forum: floors, roofs, foundations and many other components of floor... Occur for a bouncy ground floor, you need to get roofed and wrapped are... The joists are 190 X 70 placed at 400 Centres are major or minor on,. Or bounciness square feet ) and not the best option more susceptible to this and may even a. Where we discuss the plans for this type of damage can cause house! May cause damage to a house are built during the rainy season and fail to under... When walked upon weight put on them, i.e by truck associated with sagging floors or floor are. One of the finished ceiling below basically serve the same purposes as a floor and reduce sponginess bounciness. Basically, undersized floor joists or trusses be done are usually lengths softwood. Bounciness or sponginess relates to a serious structural issue which usually means that there been... And acceptable deflection ( bend ) in the wood joists which comprise the floor deflects a of... A second floor or a raised section of a building are required by code meet!
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