Insulation is a key component of a home, helping to regulate temperature and moisture levels, and providing a barrier against unwanted pests. A crawl space that isn’t properly insulated can lead to moisture issues, which in turn can cause significant damage.

While crawl spaces are often neglected, it’s important to regularly inspect the area and take action when necessary. If you notice any signs of a leaky crawl space, or that your floor feels cold in the winter or is warping or creaking, it’s a good idea to have a whole-house expert come and assess the situation. If the problem is a result of poor or nonexistent crawl space insulation, it’s time to upgrade.

Crawl space insulation can be an easy DIY project, but it’s not something to take lightly. A properly installed and maintained system protects the foundation below, helps with energy efficiency and can also save you money on utility bills.

Insulating a crawl space starts with sealing off any avenues to the outside, including vents and gaps in the walls and floors. Then, a thick vapor barrier is laid on the floor of the crawl space to prevent the infiltration of unwanted humidity and outside air. Finally, the crawl space joists are insulated to keep the temperature above the ground more consistent and save energy costs, while preventing pipes from freezing in the winter.

When insulating a crawl space, the most effective option is closed-cell spray foam. It provides a class-one fire rating, which means it slows the spread of flames, saving your home from rapid destruction in the event of a fire. It also doesn’t absorb water, so it doesn’t create a food source for pests. Foam board insulation is another option, although it can be less effective because it’s typically glued in place and won’t last as long as spray foam.

It’s important to periodically inspect the insulation in a crawl space for any signs of moisture, mold growth or pest activity. Also check for sagging or compressed insulation, which will reduce its effectiveness. In addition, regularly cleaning and sanitizing the area is essential, as organic material left in the area can be a breeding ground for insects.

A well-insulated crawl space makes your entire house more comfortable, reducing your energy costs while improving overall comfort. It also prevents structural problems under your home, such as sagging floors or cracked foundation walls, and will keep your pipes from freezing in the winter.

A crawl space that is properly insulated is easier to maintain than one without. A properly insulated crawl space will help you avoid costly repairs and improve the quality of your home. Contact a qualified foundation repair expert to learn more about crawl space insulation or schedule an in-home assessment.