Vapor Barriers.
Crawl Space Conditioning and Encapsulation Services.
Transform your crawl space with professional vapor barrier installation to block moisture, improve air quality, and protect your home’s structure for lasting comfort and health.
What’s the purpose of a Vapor Barrier?
Helps Control Crawlspace Humidity
When properly fastened and sealed to your foundation wall, with overlapped and taped seams, this system will assist in controlling the humidity in your crawl space by blocking moisture movement through the ground.
It Keeps Out Pests
A Continuous Vapor Barrier is just that, continuous. There are no seams, no openings and its tightly fastened to the foundation walls and pillars. Pests that try to find their way up from the bottom of the foundation wall will find themselves out of luck!
Improved Indoor Air Quality
If the soil under your home is exposed, it will off-gas into your crawl space, which means it will be off-gassing right into your home. Installing a continuous Vapor Barrier will seal over that dirt-floor, preventing off-gassing into your living space.
An Accessible Crawlspace, Forever
Okay, maybe not forever, but a continuous Vapor Barrier is tough, durable and resistant to damage so long as it’s not unreasonable. If installed correctly, a Class 1 Vapor Barrier can last the life-time of your home. An added bonus: your plumber and HVAC person will love you!
FREQUENTLY ASKED QUESTIONS
How thick a Vapor Barrier?
We recommend a 20mil, Woven Vapor Barrier.
FLC Energy always recommends a woven Vapor Barriers. These units will never separate, and they’re consistent in thickness across the entire roll of plastic. We can install materials down to 10Mil too, but these plastics tend to get inconsistent in their Mil thickness and are more likely to puncture or wear over time.
Whats up with the Cat Urine Smell?
Delamination, Moisture and Mildew
Dual layer reinforced vapor barriers can separate over time, allowing moisture between the two pieces of plastic. Bacteria inside can begin to smell like cat urine. This seems to have been a problem in the past, but also seems to have been blown out of proportion as a scare tactic. Even still, we’ve switched to Woven systems over the years because they’re stronger and lighter.
What thickness vapor barrier is best for a crawl space?
A 20-mil woven vapor barrier is recommended for crawl space encapsulation. Woven vapor barriers are stronger, lighter, and maintain consistent thickness across the entire roll, unlike thinner 10-mil plastics that can become inconsistent and are more prone to puncture or wear over time. A properly installed Class 1 vapor barrier can last the lifetime of your home.A 20-mil woven vapor barrier is recommended for crawl space encapsulation. Woven vapor barriers are stronger, lighter, and maintain consistent thickness across the entire roll, unlike thinner 10-mil plastics that can become inconsistent and are more prone to puncture or wear over time. A properly installed Class 1 vapor barrier can last the lifetime of your home.
How does a vapor barrier improve indoor air quality?
When soil beneath your home is exposed, it releases gases directly into your crawl space—and ultimately into your living areas. A continuous vapor barrier seals over the dirt floor, preventing this off-gassing from entering your home. Combined with humidity control, this helps reduce musty odors, mold growth, and allergens for healthier indoor air.
Will a vapor barrier keep pests out of my crawl space?
Yes, a properly installed continuous vapor barrier helps deter pests. When securely fastened to foundation walls and pillars with overlapped and taped seams, the barrier creates an unbroken seal with no gaps or openings. Pests attempting to enter from beneath the foundation will be blocked, making your crawl space less inviting to rodents and insects.
Trust FLC Energy
FLC Energy is a trusted name in crawl space services. With years of Home Performance experience and a team of certified professionals, we have helped countless homeowners transform their crawl space. Our expertise lies in our house as a system approach. We understand the unique needs of each home and provide tailored solutions, ensuring you receive the driest, cleanest and most energy efficient crawl space.
CONNECT WITH US
Latest news
