Crawl spaces are usually ground-level or subterranean areas with damp dirt floors that water that can easily soak up moisture. This can lead to things like mold and mildew growth, insects, rotting wood, and more. These issues cost a lot to repair, and can actually leave your property uninhabitable due to health risks.
A vapor barrier is a kind of material that’s used to resist moisture from entering through the wall, ceiling, and even the floor. Essentially, a vapor barrier’s job is to create a layer of protection between your home and the dirty crawl space beneath it. It’s also useful as an energy-saving method so you can lower your heating bills while ensuring that your home feels more comfortable.