The Importance of Insulating Your Crawl Space with a Vapor Barrier

A properly insulated home is vital to keeping your home comfortable and lowers your energy costs, ensuring that you don’t pay more than necessary to heat or cool your home. One often-overlooked area of the home that needs proper insulation to maintain energy costs and comfortability is the crawl space. These areas are an access point for moisture, pests, and air drafts into your home, and when not properly insulated, they can cause many issues, such as increased energy bills, mold growth, and damp and musty odors. MPI Foam recommends insulating your dirt crawl space to keep your home safe from pests and energy efficient.


Why use spray foam insulation?

Spray foam insulation is applied in a liquid form and expands to create a foam that fills in gaps and crevices, creating a continuous and airtight barrier that prevents air and moisture from penetrating the area it is applied. This insulation type is known for its long-lasting performance and effectiveness in reducing energy bills.


How does a vapor barrier work on a dirt crawl space?

One of the biggest problems with crawl spaces is that they lack a vapor barrier. The dirt may be damp, and the moisture can then migrate into the floor joists and subfloors above, causing mold, mildew, and other related problems. Vapor barriers are ideal to seal the area and prevent moisture from seeping into your crawl space. Once the vapor barrier is applied, it forms an impenetrable barrier, making it resistant to moisture, air penetration, and pesky critters you want to keep out.

Another benefit of using insulating crawl spaces is that it helps improve indoor air quality. As a vapor barrier insulation is applied, gaps and crevices are filled, creating an airtight barrier, which creates a healthier and cleaner indoor environment. When air and moisture cannot enter your crawl space, mold, mildew, and other airborne allergens are minimized, creating a healthy and allergy-free atmosphere.


Do you have a crawl space that needs to be insulated?

If you’re looking for an ideal solution to keep your home comfortable and your energy bills low, spray foam insulation is a great option to choose. It protects your home from unwanted moisture, air infiltration, mold, mildew, and pests. To get the best results, we advise hiring a professional in the field—and our team is up for the challenge!


Choosing spray foam insulation for your crawl space is one of the best decisions you can make, and we are positive that once it’s installed, you’ll enjoy healthier and happier living in your home. Contact us at 844-MPI-FOAM to update your crawl space.

  • Get a Free Quote from the
    NC Foam Insulation Leader.

*No Obligation