With summer humidity already hitting 80%+ here in Jonesboro, your crawl space is about to become a swamp if it's not properly sealed.
Most homes built before 2010 have vented crawl spaces with no ground vapor barrier. That's like leaving your basement door open during a rainstorm. Moisture from the soil evaporates up into your floor joists, insulation, and eventually your living space.
The IRC requires 6-mil polyethylene vapor barriers in crawl spaces (R408.2), but many older homes skip this entirely. Without it, you're looking at moisture levels above 60% — prime mold territory.
Here's what happens: Wet insulation loses R-value fast. Your HVAC works harder to cool humid air. Floor joists start rotting. Your energy bills spike 20-30% just from fighting the extra moisture load.
We just finished a crawl space in Trumann where the homeowner's cooling bills dropped $89/month after we installed a proper vapor barrier and encapsulated the space. The difference in humidity was dramatic — from 75% down to 45%.
If you're noticing musty smells, higher electric bills, or floors that feel damp, your crawl space probably needs attention before Arkansas summer heat really kicks in.
DM us for a free crawl space inspection. We'll measure moisture levels and show you exactly what's happening under your house.