We purchased the house about 2 years ago. The house is about 50 years old. Today we removed the carpet and the hardwood floors under the carpet. We found out the slab has an approximately 10ft long crack. See the picture. The crack goes from hairline and branches off to bigger cracks. See photo. It's about 5 inches deep from what I could measure Danny takes a look at foundation cracks under a carpet and helps sort out when to worry and when not to. Many times these cracks are from expansion and contraction, but in the rare case of something more serious from settling, you may need to call in a structural engineer. Check out foundation cracks below your carpet Settlement cracks in a slab [photo above] indicate inadequate site preparation, such as failure to compact fill on which a slab was poured. See details at SETTLEMENT CRACKS in SLABS Frost heaves or expansive soil damage [photo above] can cause substantial damage to basement, crawl space, or garage floor slabs in some conditions
A crack would not show up under carpeting but a one inch crack the carpeting would belly into it. Normally when a slab is poured there are Re-bars criss crossing so when the concrete cracks, the slab will remain surfaced flushed. If one side of the crack is higher as Jim mentioned then you have no Re-bar and you have other problems Cracks in the foundation walls are usually a sign of bowing or settling as are cracks in the drywall upstairs. Keep an eye on that crack in the ceiling, if it gets bigger over time you'll want to have someone take a detailed look. The floor is rarely a good indicator of anything but crappy concrete work. Your main goal here is to provide a semi-rigid filler so that you do not feel the cracks in the slab through the flooring (carpet). Over time the cracks will probably re-appear in these areas as the slab continues to cure (which can take years). However, with the correct joint filler in place these new cracks will remain small and should go. cracked cement slab under carpet ? P. paul814. Contact options for registered users. posted 13 years ago. Wed, Nov 14, 2007 2:01 AM. Hello, Just bought a home down in Florida. Under the carpet the floor is cement. Taking out the carpets noticed that there was a crack dow There are two common types of cracks brought on by premature drying. Crazing cracks are very fine, surface cracks that resemble spider webs or shattered glass. When the top of a concrete slab loses moisture too quickly, crazing cracks will likely appear. While unsightly, crazing cracks are not a structural concern
A slab leak with a broken sewer pipe can be especially unpleasant and dangerous. A plumber can find the location of the broken pipe and then fix it. Unfortunately, this might involve taking a jackhammer to your floor to expose the pipe. It will be fixed and then your concrete restored They won't be felt under your floor, and they won't be a place for pests to hide. Concrete cracks can seem scary at first, but they are common on almost every home that has a concrete floor. If anyone ever tells you that your concrete floor should not have any cracks whatsoever, beware, they don't know what they're talking about The old carpet, pad, and tack strips have been removed. There is a crack in the slab that extends across the room. There is no evidence of any structural problem such as cracks in the walls. The crack is only a couple of millimeters wide And then the floor is, basically, floating and it goes in between those walls. In any event, most of the floor surface is not load-bearing; it's only load-bearing under the walls itself. So it's not, technically, the foundation that's cracked; it's really just the concrete floor that's cracked. There are two ways to handle it
A single tile that is cracked may or may not be due to foundation distortion. If a crack goes across one tile to an adjacent tile and is on the ground floor, the cause is most likely foundation distortion. A separation in the grout It is common to see a separation in the grout between floor tiles . See SETTLEMENT CRACKS in SLABS for details. Frost heaves or expansive soil damage can cause substantial damage to basement, crawl space, or garage floor slabs in some conditions Some of the factors that can cause concrete cracks are: Drying Shrinkage - as concrete cures and goes through it's chemical reaction between the water and cement particles it begins to dry out. As with most materials that dry out they begin to shrink causing hairline cracks to appear Glue injection ports to the crack at an interval of 1 inch apart for every inch deep the slab is using epoxy paste. The average slab is 4 inches deep, so that would mean you needed an injection..
Pipes underneath slab foundations can crack in the wintertime and cause water damage. In older houses, material age plays a big role. Pipes under the slab eventually corrode and leak. The foundation begins to crack, and that puts additional pressure on failing drain and sewer pipes. Our Chicago winters are hard on slab foundations too Using Roadware 10 Minute Concrete Mender™ and silica sand, Clay repaired the crack to full depth and re-bonded the slabs back together using Roadware's Microdoweling™technology. The repairs cured in just 10 minutes and Clay was on and off the job in just 3 hours. The home owner was amazed Foundation movement or cracking. Water is powerful and will attack the integrity of the foundation should a slab leak not be detected and corrected in a timely manner. This can also manifest itself in cracks in the floor and walls of your home. If you see cracks and/ or movement, this could be a sign slab leak Settlement cracks result from a deficiency in the original construction, the failure of construction materials used under the slab or the intrusion of foreign material under the slab, like moving.. . Once I pulled my carpet up inside, however, I noticed superficial cracks on the concrete slab inside my home
HVAC (Heating, Venting, and Air Conditioning) systems may be installed beneath the floor slab. Over time, the ductwork can leak air, which can dry out the soil. As the soil dries and shrinks, gaps form under the floor slab, creating voids. Because the soil no longer supports the floor slab, the floor begins to crack and sink into the voids When a basement floor crack is combined with heaving, this is a cause for concern. Heaving suggests that the soil beneath the basement floor is expanding. Heaving is especially common in areas with clay soil. When the soil becomes wet, it creates enough pressure to lift and crack a concrete slab floor Crazing is a result of poor surface curing and only visible in hard troweled slabs. These cracks have little impact on durability. 3) Shrinkage cracks: As the concrete slab dries after placement, it shrinks. Contraction joints (or control joints), when cracked, are really just straight shrinkage cracks. Similar uncontrolled or random. Subterranean termites can also enter through a settling crack in the slab itself. In this case if you have carpet you won't see them and they could end up anywhere in your house before you know it. I was on one job where termites actually ate a grading stake that was left in the slab by the builder and infested a bathroom down the hall almost. Foundations crack or become damaged for many reason. Following is a partial list of causes: Tree roots. Roots may cause cracks, however, foundations rarely crack from the roots pushing up, but from them drawing the moisture out of the soil under the foundation due to Transpiration. Read about Transpiration. Settlement
[HELP] Pulled up carpet and found cracked foundation - how bad is this? We are in the process of renovating our place and will be redoing our floors. We want to replace the carpet in the living room and hallway with tile. Today while pulling out the carpet, we discovered a cracked foundation Raised tiles or uneven floor surfaces on opposite sides of a crack might indicate slab foundation damage. Tiled floor surfaces generally mirror the level of their substrate. When a slab foundation heaves or settles, attached floor coverings move accordingly. If the opposite sides of your crack differ in height, you should remove the tiles and. For instance, crack repairs cost $250 to $800. Fix these fissures as quickly as possible because they can undercut your foundation's integrity. If the cracks are expansive enough to warrant repair of the entire slab, expect to pay anywhere from $2,000 to $6,000 for new tiles, sealant, and concrete Today I received several photographs of a large crack that developed under a hardwood floor in a slab-on-grade application. The crack buckled the hardwood flooring. The home owner consulted several contractors and engineers to solve the problem. No cost-effective solution could be found until Roadware contractor, Clay Kenny, (Manderville, Lousiana) arrived on the scene
Your concrete slab floor is showing signs of sinking, sagging, or settling. Your floor may be cracking, or the walls may be separating from the floor below or ceiling above. Telltale Signs: Cracks in the concrete floor; Floors dropping and separating from the walls, forming a gap between the floor and wall . A foundation upheaval is usually responsible for bumps that appear gradually in a concrete slab floor. In most cases, this happens when there is a plumbing leak. When clay absorbs water, it tends to expand which exerts an immense force on the.
Many viewers ask if they can put carpet over a concrete floor. The answer is a qualified Yes.There are three different concrete floors to consider: those in upper floors of the house that are always high and dry, those in the basement that may possibly run into moisture problems and those outdoors that will definitely get wet.When you have no moisture problems to consider, the only thing that. As the soil dries and shrinks, gaps form under the floor slab, creating voids. Because the soil no longer supports the floor slab, the floor begins to crack and sink into the voids. Washout of Soil Under the Slab. This is usually caused by plumbing leaks. If the plumbing leak is severe and there is a path for the water to flow through, it can. Cracks in Walls and Foundation - If you have a sewer leak or a broken sewer pipe, whenever water runs through the pipe, some of it escapes into the soil surrounding the pipes and under your foundation. Because the soil in North Texas expands as it gets wet and contracts as it dries, water soaks into the soil like a sponge Concrete is a porous material so it will naturally absorb water. You can prevent this by sealing it. It's also possible that there are cracks along the basement or garage floor. Hire a professional concrete contractor to spot the cracks and to seal them to prevent water from coming up through. You should also seal the supporting joints Though most slab leaks are from fresh water pipes, sewer pipes are occasionally to blame. When these pipes break, water escapes to the surface and causes the foundation to crack or warp. Common indications of sewer leaks include: Cracks in your floor, tiles, bricks, or moldings. Rotated, bowed, or separated walls
Because the soil no longer supports the floor slab, the floor begins to crack and sink into the voids. Washout of Soil Underneath The Slab; This is usually caused by plumbing leaks. If the plumbing leak is severe and there is a path for the water to flow through, it can wash soil out from under the slab. With a void underneath the floor, there. 3) Concrete slab dried up too quickly. Rapid drying of the slab is another factor that causes the development of cracks on a concrete garage floor. There are two types of cracks under this cause: crazing cracks and crusting cracks. The latter type occurs during the stamping process of the concrete
If tile were set on the slab when it settled the tile would be sheared along the crack.Sort of like having a mini San Andreas fault under your floor. jemorillo1 12:41PM | 09/13/0 Is Your Garage Floor Cracked & Sinking in the Center? The Causes. When a slab cracks down the center, it usually indicates that the ground under the slab has moved, creating a void under the floor. These voids are caused either by water eroding the dirt or by the soil settling There are three types of foundation cracks. They are as follows: 1. Floor Shrinkage and Settlement Cracks. Installing poured concrete floors can be done in three different ways and each has distinct features and reasons for cracking: Slab on grade; When a monolithic slab and the building footers are poured at the same time, this method is. Usually the signs are obvious - cracks in plaster walls, a basement wall crack that extends from floor to ceiling, doors that stick, sagging floors, pooling water near a slab foundation, or a wet crawl space after precipitation falls. Some signs are less subtle, for example, strange smells coming from the basement or uncomfortable indoor humidity can signal structural problems
While you should consider every crack a potential risk, most cracks under one-eighth of an inch wide aren't a cause to be concerned. Settlement. Another common cause of cracks in basement floors is when the concrete slab begins to settle Under the slab we compacted 2 feet of 1-1/4 traffic bond (which is limestone with fines), in 6 inch lifts, compacted to 95%. It was like concrete before we poured. 185 yards of concrete all brought in by wheelbarrow to protect the tubing. We've run many 50,000 lb loads over the 6 thick floor. No surface cracks 12 Causes For Cracks In RCC Slab. 1 - Plastic shrinkage: When water dries up rapidly from the surface, plastic shrinkage occurs. As a result, the top surface of the slab dries more quickly than the bottom one that leads to its pulling apart. Weather conditions like wind and low humidity accelerate this process As their name indicates, nests are found outside under cracks of pavement, under stones, and next to buildings. Occasionally they may be found in walls, under floors, and in insulation. If your home is a slab-on-grade construction, Pavement Ant foragers enter through cracks in slabs or other openings Basement floor cracks and foundation wall cracks ( or in the mortar cove joints). Joints where the concrete is poured. This can happen over time if the house's foundation shifts, causing a gap where the basement wall meets the floor. 5 Reasons for water on the basement floor. There are a few reasons for a wet basement
How to Find and Fix Leaking Pipes Under a Slab Foundation. It's no secret that pipes, water and sewer lines eventually begin to erode and leak. This happens with normal wear and tear and is inevitable in most homes. Many people assume that repairing a leaky pipe beneath a slab is a difficult task. However, it's not as hard as you might think How to repair cracks in concrete. Step by step instructions to repair cracked concrete slabs like driveways, garage floors, patios and basement floors. The.. This is the opposite of a heaving crack. The soil under a concrete slab or concrete floor is not properly prepared prior to the concrete placement. Eventually, the area under the slab settles and is no longer in contact and supporting the concrete slab. The concrete slab then gives way and cracks Gaps form under the floor slab and create a void that the slab begins to sink and crack into. - Washout under the slab . This is usually caused by plumbing leaks. If the leak is severe enough it can wash out the soil under the floor slab, again creating a void that will cause the floor slab to crack and sink. - Poor compaction of fill soil
Houses built on a slab lack crawlspaces, and there is no space under the floor. Slab Cracks . One of the most significant potential disadvantages is if the slab cracks. This can substantially. Step 2 - Consider Using Mortar. One method of fixing and repairing cracks in foundations is to use mortar. Whenever your concrete slab foundation cracks, there will still be small pieces of concrete in the crack. Use a wire brush to clean all of these pieces from inside the crack. If you don't clean the crack properly, then the repair will not.
Transitioning from hot dry summers to cold wet winters can crack concrete. Heavy thunderstorms can create erosion under the slab, causing it to sink. If you replace your motorcycle with an SUV, the added weight may strain a floor already under pressure. Once you have a sinking concrete slab, you'll need it to be lifted back into place Concrete floors naturally crack during curing due to shrinkage. Actual crack width shall be determined using a wire feeler gauge* inserted inside the crack. Where repairs are necessary, colour and/or texture of repair materials may not match the surrounding concrete. * Because it is of a manufactured, set size, an Allen Wrench/Key may be used. Unless it is a new house still under warranty, I would not worry unless it is more than hairline cracks (i.e. wider than a ball point pen tip). A normal garage floor, after 10+ years, will probably have 3-8 of these, with some along the edges, and most in the center portion of the floor, commonly radiating out from the floor drain if you have one If it's coming from below then you could have a crack in the floor and moisture under the slab that is wicking up through the cracks. Does it get worse after it rains? If you do have a crack you'll need to rip up that carpet, wouldn't want mold to start growing under your carpet. posted by zeoslap at 6:23 AM on May 22, 2007 MID 1980's to 1990's tract homes. (All looked alike) They were all near a bathroom (One wall away) and was caused by a broken water line under the slab floor. One was actually in the slab and when the house settled and the slab cracked, so did the pipe
. Newly poured concrete, given enough time, will eventually release sufficient moisture during the curing process to proceed with building construction and floor covering or a resinous floor coating system. Garage Floor Crack Repair 101 (Plus When to DIY & When to Call a Pro) No matter how nice your garage floor is when it's first installed, and regardless of how well you take care of it, you'll eventually get a garage floor crack that needs repair. The ground around your garage will shift, and the brunt of that will be felt by the floor since.
Your concrete slab floor is showing signs of sinking, sagging, or settling. Your floor may be cracking, or the walls may be separating from the floor below or ceiling above. Telltale Signs: Cracks in the concrete floor. Floors dropping and separating from the walls, forming a gap between the floor and wall It has been established that rapid drying of concrete will cause cracks in floor slabs. Concrete curing is a process that allows water elimination in a controlled manner. If curing is improperly done, the water evaporation will leave hairline cracks in the concrete slab. 6 Types of Cracks in Concrete Slabs
Water damage from crack in concrete slab with radiant heat. Hello, this is my first posting here. I reside in a 1950's constructed home with radiant heat in the slab. There are two zones on the first floor, and two zones on the second floor. About 9 years ago, I had the heating system replaced with a Dunkirk 95M-200 gas fired direct vent boiler Phillip Varela - licensed installer address a crack in the concrete slab prior to tiling with an anti fracture membrane. SunCoast Tiling. www.SunCoastTiling.co This is the ply with slab leaks which are basically when the pipes that are located in your walls or under your foundations create a leak. This water slowly builds up and will eventually come to the surface causing your flooring or the walls to crack and bringing damages to your home and its contents The reason for the crack may be the soil under that part of the floor has compacted, due to water infiltration. (And there is less soil underneth to support the cement - thus the cracks.) That is rainwater maybe getting underneth the garage from a gap between the front lip of the garage and the driveway
Cracks form before settlement, so they can be a good leading indicator of problems below your concrete slab foundation. Cracks in floor slabs are often hidden by floor coverings, but will reflect through tile. Gaps under baseboards. Gaps under your baseboards are one of the surest signs of slab floor settlement Concrete slabs are prone to harboring insect infestations because of the construction engineering of the foundation. A slab lies on a thick layer of drainage aggregate over solid ground, and over time a house settles and produces cracks in the slab. The cracks attract insects to form nests under the slab in the moist and dark atmosphere A void under a concrete sidewalk will be visible as uneven slabs and possibly show cracks in the surface of the slab. Having voids under a garage floor or a sidewalk can be dangerous. Your car could actually sink into the hole that will be created beneath when the bridge gives out Sometimes mother nature gives us an imperfect slab of granite. Other times the slab was mishandled and has resulted in hairline cracks in your granite countertops. It is best to prevent this by inspecting your slab before you purchase. To do this run your hand and fingers on every square inch of the slab and try to find a crack
Hardwood Floor Problems: Heed the Warning Signs. The moisture content (MC) of wood, must be managed to achieve optimum beauty and durability. When relative humidity (RH) rises, wood absorbs moisture from the air. When RH falls, wood loses moisture to the air. This is a completely natural process, but excessive MC changes can cause wood floor.
If slab leaks have been present for some time - or your property sits on expansive soil - some of the more ominous signs to look for are: cracks in walls leading upwards from the floor; cracks in tiles or concrete flooring; raised (dome-shaped) areas of flooring; warped or squeaking timber boards Crack in Slab Floor. When we purchased our 25-year-old house, it had a crack in the foundation. The crack goes through our dining room and kitchen. In places, the crack is 1-1/2 inches wide. It is currently covered with carpet in one room and linoleum in the other. We would love to put ceramic tile in these rooms. Is there any way to fix this.
Lay carpet out and use a rented knee kicker to force the carpet into the far corner. Using the power stretcher, stretch the carpet across the room to the opposite wall. Hook the carpet onto the tack strip. Continue this until the carpeting is smooth and flat. Generally, you'll work from the centers of each wall toward the corners Answered by LCD: To pin down where this water is coming from, you would have to catch it early in a rain, or look for flowlines on the floor maybe showing where it is coming from. Possible sources: 1) leak in siding so water is running down in wall and out onto slab - solution is find and fix leak. 2) buildup of water from direct wall runoff or roof runoff or gutter downspouts which do not.
The sub-base wasn't properly compacted and the concrete settled in one area causing the floor to sink and crack. The concrete floor isn't heated in the winter and the dirt under the concrete freezes causing it to expand and lift or heave, the concrete. This upward pressure will make the concrete crack. Newly poured concrete shrinks when it dries Transitioning from hot dry summers to cold wet winters can crack concrete. Heavy thunderstorms can create erosion under the slab, causing it to sink. If you replace your motorcycle with an SUV, the added weight may strain a floor already under pressure. Once you have a sinking concrete slab, you'll need it to be lifted back into place Allow the crack to dry completely before you walk on it. Step 6 - Large Cracks. Pour sand into the crack to reduce its depth. The crack should not be more than 3 inches deep. Use a paintbrush to apply some concrete bonding adhesive inside the crack as well as on both edges at the surface. Prepare some concrete patching compound and fill the crack