Nov 27

How Does Moisture Enter Crawl Spaces?

Terms: Restoration

Keeping your crawl spaces as dry as possible is essential since more than half of your home’s air goes through them. Maintaining healthy humidity levels in these areas can improve your indoor air quality and even help you save on energy costs. It can also help you avoid mold growth and costly structural damage.

Find out how moisture enters crawl spaces and how to address this problem from a trusted home restoration expert.

Ways Moisture Penetrate Crawl Spaces


Uncovered soil is a main source of moisture in crawl spaces. It is a common misconception that if the soil looks dry, then it does not add moisture to your space.

Plumbing Leaks

Many supply and drain lines run through your crawl spaces, and they can leak due to various reasons. Since crawl spaces are among the last things homeowners look at, many leaks can go unnoticed for a long time. Make sure to have any leaks addressed as soon as possible to avoid water damage.

Foundation Walls

Another way moisture can enter crawl spaces is through the foundation walls. Vented crawl spaces usually do not get damp proofing, or perimeter drains on the exterior. What happens then is that the wet soil outside comes right through.

Foundation Vents

Moisture can penetrate crawl spaces through foundation vents as well. Instead of helping the crawl space stay dry, these vents have the opposite effect during the warmer months. The relative humidity in the space increases as the outdoor air enters.

Why Encapsulate Your Crawl Spaces?

Crawl space encapsulation is one of the best ways to avoid indoor moisture-related issues in your crawl spaces. It involves attaching a heavy-duty polyethylene barrier to the floors, foundations, and in some cases, the ceilings. When you encapsulate your attic, you can avoid mold growth and structural damage. Your living spaces would be more comfortable, and your home will become more energy efficient. By getting rid of excessive moisture in your crawl spaces, you can avoid pests and insects feeding on wood.

Whether you need assistance with water and fire damage restoration, you can depend on Special Touch Restoration. Call us at (256) 330-4822 in North AL or (251) 512-1424 in South AL. You may also fill out our contact form to get a free quote.