What's A Crawl Space Moisture Barrier?

What Causes Moisture in Crawl Spaces?

Moisture in crawl spaces is usually the result of poor ventilation. When indoor air mixes with outdoor air it creates the perfect environment for moisture due to the humidity.

Dangers of a Moist Crawl Space

If your crawl space is wet, it can lead to quite a few issues. One of the biggest concerns is mold growth. Moist conditions invite various types of fungi, like aspergillus, to grow which not only can cause foundational issues but health ones as well. In addition to this, a handful of harmful pests enjoy this environment, like rats and termites.

What’s a Crawl Space Moisture Barrier?

As its name suggests, this device works to trap and prevent moisture in your crawl space. A crawl space moisture barrier is usually designed out of plastic or foil and is laid on the crawl space’s floor. Ideally, it should be around 10-20 millimeters thick to help prevent it from wearing out.

How Does it Work?

When the barrier is placed on the ground it will prevent moisture from the soil evaporating into the air. It also keeps any leaking pipes or debris from getting into your home’s foundation, something which could lead to dangerous cracks.

The Installation Process

Installing a moisture barrier is much easier than one might think. First, you need to measure the crawl space. Make sure that the measurements also include at least six inches up the wall. This can help to better protect the lower part of the home’s foundation. Once you have accurate measurements, cut the moisture barrier to fit it. Then, use stakes to secure it in place. For some barriers, you might need to caulk it to the structure. Keeping moisture out of your crawl space is important if you want to prevent dangerous moisture, pests, and allergens from destroying your home. If you’re interested in learning more about this unique device or want to have it installed in your crawl space consider giving us a call at 1-866-379-2729!