Crawl Space Encapsulation Done Right in Durham

Most homeowners never think about what's going on under their house - until something feels off. Musty floors. Humid rooms. That faint smell you can't quite place. A lot of the time, the problem starts in the crawl space. That's exactly the kind of situation we dealt with on this Durham job.

Here's what we were working with - an unencapsulated crawl space with no real moisture barrier in place. Ground moisture and outside air were getting in unchecked, and that kind of environment is where mold, wood rot, and pest problems like to start. Our solution covered all three layers of the problem: the walls, the floor, and the air itself.

For the walls and floor, we installed an Insul-Barrier foundation blanket along the perimeter and laid a 20 mil vapor barrier across the entire ground surface. That 20 mil thickness matters - it's heavy-duty, puncture-resistant, and built to last under a crawl space. Thinner barriers get damaged easily and let moisture through over time. We go with the heavier material because it actually holds up.

Then we added an Aprilaire E70 dehumidifier, suspended from the floor joists and properly positioned to pull moisture from the air across the whole space. The E70 is a workhorse - it's built specifically for crawl spaces and tight areas, and it runs automatically to keep humidity in check year-round. Pairing a quality dehumidifier with a solid vapor barrier is what separates a real encapsulation from a patch job.

The end result is a crawl space that's sealed, dry, and protected. The floor above it is better insulated from ground moisture, and the air quality throughout the home improves when the source of that dampness is cut off at the source. If your crawl space hasn't been looked at in a while, it's worth knowing what's down there.