In a crawl space, fiberglass insulation tends to absorb moisture, which causes it to lose R-value and fall out of place, rendering it totally ineffective while also creating a mess. To keep moisture from entering the space, we installed drainage matting and the CleanSpace vapor barrier above it. On the walls we used SilverGlo Wall Insulation. After we repaired and waterproofed the crawl space, the owners never had to worry about crawl space humidity and energy loss again!
