Reasons for High Crawl Space Humidity

Some people don’t know why their crawl space moisture levels could be too high. There are a variety of reasons for high crawl space humidity you may not have considered, and these can be incredibly important to fix before you install dehumidifiers for your crawl space.

Why do you have high crawl space humidity? Consider these possible reasons.

Flooding and Hydrostatic Pressure 

Hydrostatic pressure is the official name for the pressure exerted by water when it’s at rest. It’s an incredibly important part of understanding the pressure exerted on your basement or crawl space.

When the area around your home floods, the hydrostatic pressure also increases because there’s more water to press on the walls. This can cause too much strain on your walls, which may end up cracking to let in the water.

Your walls may have to endure some hydrostatic pressure, but you don’t have to resign yourself to cracked walls. Contact a JES expert to learn more about how you can avoid this pressure.

Open Crawl Space Vents 

As crawl spaces first became popular, the general concept was that a crawl space needed to “breathe.” To facilitate that, home designers started adding crawl space vents to crawl spaces.

However, over the years, we’ve discovered it’s not that simple. In fact, open crawl space vents can lead to higher levels of crawl space humidity. They can let in water from the outside and the cool air coming in can significantly increase the relative humidity.

That’s why open crawl space vents can actually be a problem. If you need to seal your crawl space vents, a JES expert can help you do that.

Wet Crawl Space Insulation

Your crawl space insulation can get wet for a variety of reasons. However, regardless of the reason, it’s important to realize that it’ll stay wet for a very long time.

When you have wet crawl space insulation, the only true fix is to replace it entirely. Otherwise, the moisture will just hang around, potentially even providing a great place for mold to grow.

Instead of just leaving wet crawl space insulation to grow, you should remove it and dehumidify the crawl space. A JES expert can help you down that road.

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