Nasty Crawl Space
As you can see in this crawl space picture, the dots are from moisture in the air. When moisture is strong in the crawl space, the fiberglass insulation begins to fall, wood starts to rot, and the health of the homeowners and their home are in danger.
Crawl Space Liner
The liner in the crawl space is covering the walls and floors. The homeowners are happy with their new crawl space and look forward to no longer dealing with the worries of mold or moisture destroying their home.