Crawl Space Humidity

How It Begins

Crawl space humidity has been plaguing homes since they were first built. While the crawl space has few holes when the framing of the house is finished, other contractors then cut channels into walls and floors to install pipes, wires, cables, ducts, and more. Over time, your home begins to expand and contract and seams begin to warp, leading to more crevices and openings. Warm air rises, leaving through the attic and upper floors. As this happens, a vacuum is created on the lower floor. Air from the outside and from your crawl space is pulled upward to fill the space. If you have crawl space vents and the air outside is wet or humid, then the vents are bringing in the moisture.

As the crawl spaces become increasingly humid, the moisture condensates on the surfaces, causing serious problems and damage to your home, such as rotting, mold, rusted & corroded metal, odors & allergens, and higher utility bills. Mold will damage all organic material, causing floors to sag and create uneven floors above. In extreme cases, floors may even begin to cave in. Mold and rot are homes for many pests (termites, carpenter ants, wood-eating beetles, crickets, etc). As the mold and rot increase, the pests begin to live and die, and odors will begin to rise into your home.

During summer months, this humidity will also increase your home’s cooling bills. An air conditioner must dehumidify the air it cools. Humid air is much more expensive to cool than dry air.

How To Control

Control crawl space humidity with sealing crawl space vents, and installing a crawl space vapor barrier on the walls and floors. A dehumidifier is a great finishing touch, drying out the space and helping you to preserve your home.

At Norris Mechanical, we offer AirTight Spray Foam, which is an advanced form of insulation that is perfect for preventing and resolving these issues. Click here to read more information on the AirTight Spray Foam services we offer.

Contact Us Today

Contact us today for more information about controlling crawl space humidity!