What’s the Underlying Cause?

Understanding the underlying cause for floor joist failure is an important part of making sure you’re able to combat it. These are just a few of the common underlying causes of floor joist failure.

Poor Support Design

If the original designer did a poor job with support design, you may end up with floor joist problems. A home is massively heavy, and it requires a number of checks and balances to make sure the significant weight has enough support.

However, if the original designer didn’t calculate the weight properly, or didn’t realize exactly where the load-bearing structures would be, it’s possible for the floor joists not to have enough support to keep things stable. That means you might run into floor joist concerns.

House Settlement

Another potential problem is that the home could still be settling. Foundation settlement occurs for a number of reasons. The soil around the home could be unduly expansive, the soil underneath the home could have been packed incorrectly, or the home’s design could simply lend itself well to settling.

There will typically be other signs of house settlement. When house settlement occurs, especially if it’s settling more on one side than the other, you’re likely to see a shift in the way the weight rests. That means you could run into issues with floor joist support that weren’t present in the original design.

Waterproofing Concerns

Water is another huge concern when it comes to floor joist issues. It’s important that you engage in waterproofing measures if you want to avoid issues with floor joists, because this is a significant concern that can lead to very serious problems in the future.

If you have water in your crawl space, whether it’s standing water or just general condensation, you’re opening yourself up to serious problems regarding the structure under your home. One of these problems, of course, is that you could have floor joist problems.

High Home Moisture

Do you know what the relative humidity in your home is? Have you checked? High humidity in your home probably means you also have high humidity under your home, especially since the stack effect means the air inside your home typically comes from your crawl space or basement.

High levels of humidity are nightmarish for your floor joists. The bouncy feeling that many people associate with floor joist concerns can come from floor joists that have gotten wet and now have much more “give” to them than ones that have stayed dry their entire lifespan.

Wood Rot and Mold

One of the most well-known problems that can turn into floor joist concerns is wood rot. In fact, the problem of bouncy floors is one of the things that will cause a JES expert to look for wood rot under your floors, which will typically be present in floor joists above all other things. 

Mold and mildew are other problems that often give rise to floor joist problems. In either of these situations, high levels of humidity or standing water can be the root cause. It’s important to seek out what’s actually wrong with the floor and tackle what caused it.

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