Sometimes, the signs of sagging or sloping floors in your home are as easy to spot as they sound. Your floors may visually appear slanted. You may even notice objects roll when dropped on the floor. This occurs because the foundation has improperly settled, creating the sloping.
In layman's terms, this means typical 2-by-10 floor joists, spanning 16 feet, can be expected to sag about one-eighth to one-quarter of an inch. Not much; however, as the span increases, so does the amount of deflection. In any case, the floor system can be repaired.
Sagging floors are a sign of serious damage to the joists beneath your home and the structure of your home overall. Left untended, this can lead to injury, property loss, and disaster. Worse, insurance companies often will not pay for such losses or repairs if you ignored the issue once the early signs became visible.
A common sign of compromised joists is uneven floors. But these could be the result of flooring or subflooring defects. “Bouncy” floors are a very common sign of rotten floor joists.
Owners of old homes might learn to experience springy or slanting floors as part of the charm, but they are signs of structural damage. As a home buyer, look at whether the floors pitch at all or take a piece of string to test the floor's deflection.
Does home insurance cover foundation movement or sagging floors? Foundation damage caused by shifting or settling earth or sagging floors caused by rotting floor joists are typically not covered by homeowners insurance. If the damage is caused by flooding or an earthquake, you'll typically require separate coverage.
While sagging floors are unsightly, they can be dangerous as well. A sagging floor means that it has lost support, and it may eventually collapse into lower levels of the home. The overall structure of your home could be at risk, therefore making repairs a priority is imperative.
What Happens if You Don't Fix Sagging Floors? If you ignore sagging floors, it can lead to consequences such as property damage that your insurance company may not cover. It can also lead to injury when someone trips or falls on uneven floors, or even property loss if the damage is great enough.
No subfloor is perfectly level, but any signs of unevenness and high or low spots must be remedied. Please follow these requirements: Subfloor unevenness cannot be greater than 3/16 of an inch over a 10-foot span or 1/8 inch over a 6-foot span. Subfloors must not slope more than ½ inch per 6 feet (25 mm per 1.8 m)
In some cases, a slight slope may be normal and not cause for concern. However, if the slope is severe or getting worse over time, it could be a sign of a serious problem that requires immediate attention. One potential risk of sloping floors is damage to the structural integrity of the home.
The typical costs for repairing sagging floors start at $1000 and can go up to $10,000, with the average rate being around $300 per square foot.
Sagging floor joist repair often requires professional tools and knowledge, so it's not a recommended DIY job. Homeowners can expect to pay between $1,000 and $5,000 for joist repair to fix a sagging floor and restore a home's structural integrity.
Uneven floors are rarely caused by problems with the floor itself. The cause is usually settling or shifting of the foundation underneath the floors. If the floor beams and joists are made from wood, like the ones above a crawl space, they will usually bend rather than crack.
If you have sinking and uneven floors, your floor support may be inadequate. Here are some of the more common causes of crawl space and foundation issues that can lead to sagging, sloping, or uneven floors: Water damage. Crawl space moisture.
Safety factor is a measurement with which your floor was designed to support loads without collapsing. Most homes have a safety factor of 40 PSF (pounds per square foot).
Humidity and moisture can cause severe problems for floor joists. When exposed to damp conditions, wood can rot and become weak. This can lead to sagging floors and even floor collapse. Also, damp environments attract pests like termites and carpenter ants that can damage floor joists.
For homes with this type of floor, soft soil or bad compaction is almost always the culprit. Once the soil is compromised, the slab will shift, and this creates the sagging or sinking effect. Pressure from that shift will sometimes crack the slab itself, causing high and low places in the flooring.
Solid hardwood flooring has been known to last up to 100 years, while the engineered version has a life of almost 50 years. Both options can be refinished throughout their lives, meaning your century-old floors can still look like new with proper care and maintenance.
Sagging- Sagging can be a sure way of identifying a deteriorating joist. However, the weight of your floor and furniture can also cause joists to sag over time. Creaking- a breaking floor is always bad news. This may mean the joist underneath is crumbling or broken and may require reinforcing or replacing.
Squishy or spongy flooring can sometimes be a sign of water damage, either to the boards themselves or the subfloor. This is often caused by using too much water on the laminate to clean it, such as using a sopping wet mop or steam mop, which damages the wooden core of the laminate boards.