- Crawl spaces can make heating or cooling your home more difficult. If the crawl space is vented, hot or cold air escapes through the vents and affects the temperature of the floor above the crawl space, according to Basement Systems. In addition, crawl spaces often contain damp air, which makes the entire home more humid during the summer months. These problems can add 15 to 35 percent to your heating and cooling bills. Potential buyers might not want a home with a vented crawl space for this reason.
- Moisture in the air can cause mold to grow in your crawl space, according to Realty Times. Many homeowners do not realize the source of the mold and clean out the mold without resolving the moisture problem. Mold is not only unsightly and unhealthy for your walls and floors but can also attract bugs.
- If the air in the crawlspace is conditioned via insulating the crawl space and dehumidifying the air, the property value may go up, according to Realty Times. Dehumidified or controlled air in the crawl space makes it less attractive to bugs and stops mold from growing. Wood and other structural elements are less likely to rot if the house contains this type of crawl space. In addition, a properly insulated crawl space saves you energy instead of wasting it.
- Many companies sell insulating material that you can line your crawl space with. This material keeps pests and moisture out while making the crawl space look cleaner and more enticing to buyers. Some companies sell liquid insulators, which you cannot use with vented crawl spaces. Check with your city's zoning department before attempting to insulate your crawl space; your city may require a permit for this type of remodeling.
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