What Is an Encapsulated Crawl Space?
A crawl space encapsulation system is the most effective way to control moisture, musty odors, and mold in your home’s foundation. By completely sealing off your crawl space, you prevent dampness, pests, and airborne contaminants from entering living areas, because up to 40% of household air can rise through the crawl space into your home.
Key Components of Crawl Space Encapsulation
Polyethylene Vapor Barrier
Covers the entire crawl space floor and walls with reinforced, virgin 10–20 mil plastic—far superior to thin, recycled poly found at hardware stores.
Seams overlapped by 6–12 inches and sealed with industrial-grade tape or caulk for a 100% moisture barrier.
Wall Sealing & Insulation
Insulate walls with closed-cell foam or high-density board to create a conditioned zone.
Seal vents, utility penetrations, and the access hatch with spray foam or rigid board to stop outside air infiltration.
Crawl Space Dehumidification
Install the right-sized crawl space dehumidifier (30, 50, or 70 pint capacity) to keep relative humidity below 55%.
CCSS delivers a dedicated condensate-piping system that drains moisture directly into your home’s plumbing or sump pump.
Moisture Source Control
Identify and repair leaks or groundwater entry before encapsulation begins.
Add drainage upgrades—such as interior French drains—to channel water away from the foundation.
Encapsulation Process: Step-by-Step
Inspection & Moisture Assessment
Measure crawl space humidity and wood-moisture content.
Locate water intrusion points: plumbing leaks, foundation cracks, or termite tubes.
Site Preparation
Remove debris, old insulation, and damaged wood.
Grade soil or install a perimeter drain system if needed.
Vapor Barrier & Wall Liner Installation
Fasten vapor barrier to walls up to 6″ below the sill plate—leaving wood framing visible for pest inspections.
Secure seams with double-sided seal tape; seal around piers, pipes, and wiring.
Dehumidifier Setup
Position unit centrally; connect to power and condensate line.
Calibrate for your crawl space’s square footage and humidity load.
Final Inspection & Warranty
Verify barrier integrity and dehumidifier performance.
Provide maintenance tips and a transferable warranty on materials and labor.
Benefits You’ll Enjoy
Dry, Healthy Air: No more musty crawl space odors or mold recurrences.
Lower Energy Bills: Consistent floor temperatures and reduced HVAC strain.
Long-Term Protection: Reinforced vapor barriers last 20+ years without puncture or degradation.
Enhanced Home Value: A fully encapsulated crawl space is a strong selling point for potential buyers.
Ready for a Dry, Energy-Efficient Crawl Space?
Contact Charlotte Crawl Space Solutions today for a free crawl space encapsulation quote. Reach out to us to schedule your complimentary inspection. Let us show you why we’re the best crawl space encapsulation near you!
