Crawl Space Encapsulation Done Right in Hillsborough

A damp, musty crawl space is one of those problems that's easy to ignore - until it isn't. Moisture that builds up under your home doesn't just stay there. It works its way into your floor joists, your subfloor, and eventually the air you breathe inside. That's exactly the kind of situation we came in to fix on this Hillsborough job.

We went with a full encapsulation using an Insul-Barrier foundation blanket. The liner runs wall-to-wall across the ground and up the foundation walls, creating a sealed environment that cuts off ground moisture before it ever has a chance to become a problem. The Insul-Barrier system is a heavy-duty, reinforced liner - not the thin sheeting you'll sometimes see thrown down and called a vapor barrier. There's a real difference, and it shows in how the space holds up over time.

On top of the encapsulation, we installed an Aprilaire E70 crawl space dehumidifier. Even with a solid vapor barrier in place, humidity can still enter through other pathways - vents, gaps, air movement. The E70 handles that continuously, keeping relative humidity at a level that protects your wood structure and discourages mold growth. It's a workhorse unit built specifically for crawl space environments, and it pairs well with a fully encapsulated system like this one.

The combination of encapsulation and active dehumidification is what we recommend for most crawl spaces in this part of North Carolina. The climate here brings plenty of humidity, and a passive barrier alone often isn't enough to keep things truly dry year-round. Adding mechanical moisture control gives you a complete system rather than a partial fix.

If your crawl space stays damp, smells musty, or you've noticed soft spots in your floors or higher-than-expected energy bills, those are all signs worth paying attention to. We're happy to take a look and walk you through what makes sense for your specific setup.