Risks of an Unprotected Crawl Space

When a crawl space under a home is not encapsulated, sealed off, or have proper drainage from a sump pump and French drain, many destructive elements can occur that can damage the home and create an environment that is both unhealthy and conducive to poor energy efficiency.

https://www.elitemoisture.com/blog/risks-of-an-unprotected-crawl-space/