Vapor Barriers
All of the vapor barriers we install are made in the USA with materials that do not off-gass chemicals.
What Is A Vapor Barrier?
A vapor barrier, or vapor retarder, is construction grade polyethylene sheeting, that is most notably installed along the floor of a crawl space. It covers the exposed earth under a home, with no less than 12 inches of overlap along all of the adjoining seams. Vapor barriers provide moisture protection for a crawl space.
Do I Need A Vapor Barrier?
Yes, every crawl space should have a vapor barrier. Vapor barriers are a crucial element for any home with a crawl space. You can expect relative humidity levels to be 40-50% higher, and wood moisture levels as high as 25%, in a crawl space without a vapor barrier.
Without a vapor barrier, moisture from the soil can enter the crawl space and cause a range of problems, including mold growth, wood rot, and pest infestations. Installing a vapor barrier is a relatively simple and cost-effective way to protect your home from these issues and improve indoor air quality.
10 mil crawl space vapor barrier
16 mil crawl space vapor barrier
Common problems we see everyday due to insufficient vapor barriers
Condensation forming, due to high humidity, on the AC unit and duct work under the house. That condensate builds, dripping onto the vapor barrier, soaking into the wood joists where the ducts hang, and soaking into the sub-floor where the vent registers connect to duct work. Overtime, this leads to mold, musty odors, and even wood rot along the joists and sub-floor.
Standing water on top of the vapor barrier which is usually a result of a rising water table during heavy rains, and poor drainage around the foundation. A vapor barrier providing 100% ground coverage paired with an interior foundation drain can protect your home from standing water.
Musty smells in your home or crawl space are likely a result of insufficient ground coverage or an ineffective vapor barrier. Mold is often a result of high humidity, temperature, and wood moisture levels in the crawl space.
Damaged and hanging fiberglass insulation is often a result of insufficient vapor barrier coverage. The insulation can be easily damaged by moisture and humidity, and will diminish in r-value over time when exposed.
Failing North Carolina home inspections and independent home inspections is often a result of inadequate vapor barrier coverage or having no vapor barrier at all.
HOW MUCH DO VAPOR BARRIERS COST?
(919)-630-3202
Call or Text Us anytime!
“I had several estimates to have a vapor barrier installed in our crawl space and Carolina Casa was the most friendly and professional business that arrived and they had the best price. The end product is exactly what we were looking for. I would not even bother calling anyone else. Call Carolina Casa!”
—5 Star Google Review
Types of Vapor Barriers
6 Mil Vapor barrier
(Minimum required for NC Building Code)
A 6 mil vapor barrier is the minimum required thickness for crawl space moisture protection in North Carolina. We always install our 6 Mil vapor barriers with 100% ground coverage and at least one foot of overlap on all seams.
Class-A Vapor Retarders:
Our Viper 12 Mil is a high-strength Class A polyethylene vapor barrier designed specifically for crawl space moisture protection (previously known as the Viper 10 Mil, this barrier now classifies higher). Always installed with 100% coverage, wrapped around all piers, secured one foot up the walls, and sealed at the seams with 9 mil tape.
Viper 16 Mil Vapor Barrier
Our Viper 16 Mil is another Class A polyethylene vapor barrier designed specifically for crawl space moisture protection. Always installed with 100% coverage, wrapped around all piers, secured one foot up the walls, and sealed at the seams with 9 mil tape.
Viper 12 Mil Vapor Barrier
Waterproofing Options
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Waterproof Wall Insulation
This type of insulation lasts until it is torn down and is highly effective at insulating the home and preventing moisture intrusions.
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Waterproof Wall Liner
Our wall liners are designed to prevent moisture from entering through the foundation wall.
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Exterior Foundation Wall
Ideal for homes with significant moisture entering on one side.
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Waterproof Wall Paint
This masonry paint can be used in a crawl space or on a basement wall.
Protect Your Home from Moisture: Expert Vapor Barrier Installation in Raleigh NC and Surrounding Areas
If you own a home in Raleigh, NC or a surrounding area, you know our unique climate creates a perfect storm for moisture problems. Your crawl space is a huge liability, acting like a damp sponge that introduces high humidity, musty odors, and mold spores into your home's air.
Installing a heavy-duty crawl space vapor barrier is the most critical step you can take to stop moisture at the source. At Carolina Casa, we specialize in professional, warrantied vapor barrier and crawl space encapsulation solutions designed to permanently protect your home against the destructive power of excessive humidity. Don’t hesistate to reach out to us for a crawl space vapor barrier installation in Raleigh, NC or surrounding areas.
Why a Crawl Space Vapor Barrier is Essential in Raleigh NC and Surrounding Areas
In the Triangle area, the ground beneath your home is constantly releasing moisture as vapor. Without a proper barrier, this moisture permeates the air in your crawl space, leading to a long list of problems. Our professional-grade vapor barrier installation acts as an impenetrable shield.
| Problem Without a Vapor Barrier: | Solution with a Vapor Barrier: |
|---|---|
| Mold & Mildew Growth on wood and insulation. | Prevents Mold by stopping moisture from evaporating into the air. |
| Wood Rot that compromises your home's structural integrity. | Protects Structural Wood from decay, preserving your foundation. |
| High Energy Bills as your HVAC system struggles to cool humid air. | Improves Energy Efficiency by reducing the moisture load, saving you money. |
| Pest Infestations (termites, rodents, bugs) that thrive in damp areas. | Deters Pests by eliminating their essential water source and sealing their entry points. |
| Musty Odors and poor Indoor Air Quality due to the "stack effect." | Enhances Air Quality by preventing spores and odors from rising into your living space. |
Call the Raleigh experts at (919) 630-3202 for a FREE inspection and quote today!
Understanding the Cost of Vapor Barrier Installation in Raleigh
Homeowners often ask, "How much does a crawl space vapor barrier cost?" The price is highly variable, depending on your crawl space size, height, and current condition (e.g., existing mold or structural damage).
While a basic vapor barrier replacement can cost less, a comprehensive, professional crawl space encapsulation solution that includes the premium barrier, vent sealing, and dehumidifier typically ranges from $3 to $10 per square foot.
The Bottom Line: This is an investment that provides immediate returns by lowering energy costs and, more importantly, protecting your most valuable asset from structural damage, saving you tens of thousands in future repairs.
Don't Risk Your Home's Health—Call Raleigh's Vapor Barrier Experts
Ignoring a damp crawl space means inviting mold, pests, and expensive repairs. Protect your investment and improve your family's air quality today. Carolina Casa is your local, certified specialist for crawl space vapor barrier installation and encapsulation throughout Raleigh, NC, and the surrounding Triangle area.