The Ultimate Guide to Vapor Barrier Systems for Crawl Spaces

Transform your crawl space into a dry, energy-efficient area with professional vapor barrier installation services from Complete Insulation. As Middle Tennessee’s trusted insulation experts, we offer top-of-the-line solutions to ensure your crawl space remains a non-vented, healthy environment. Our team specializes in crawl space systems and handles every step of a project with precision, including vapor barrier installation.

Vapor Retarder vs. Vapor Barrier

While they function similarly, there are important differences between vapor retarders and vapor barriers. A genuine vapor barrier must have a vapor permeance rating of less than .001. Unfortunately, typical builder-grade 6ML black poly fails to meet this standard. It functions merely as a vapor retarder, not a barrier. Made from recycled content, it deteriorates over time and becomes brittle and ineffective, necessitating frequent replacements.

Viper Reinforced Vapor Barrier Systems

At Complete Insulation, we use Viper reinforced vapor barriers to provide superior protection for your crawl space. These vapor barriers are made from high-quality, virgin resin, ensuring they are durable, puncture-resistant, and long-lasting. Options include:

Viper 10ML Reinforced Vapor Barrier

For enhanced durability, the Viper 10ML Vapor Barrier offers even greater performance. Like the 6.5ML version, it covers the floor and extends up the walls, sealed and fastened securely to prevent any moisture penetration.

Transform Your Crawl Space With Premium Vapor Barrier Systems

If you’re ready to upgrade your crawl space with a professional vapor barrier system, contact Complete Insulation today. Our experienced team will provide a free inspection and detailed estimate, ensuring you get the best solution for your home. Don’t wait—protect your Middle Tennessee home from moisture and improve your energy efficiency with our top-notch crawl space encapsulation services.

“The team who came from Murfreesboro, TN to our house in Chattanooga were amazing. We have a very large home. They removed all the old insulation from our three attics, sprayed with a decontaminate and then sprayed all the new insulation. All in one very long day. They were great to work with, came went they said they would, answered all our questions. Had to put the tubes all the way from the attic down to the first floor and out to the truck. They covered all the floors, stairs etc and left the place spotless. We are very pleased and would highly recommend this company.”

Lorraine Forman
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“I had a fire in my attic and needed all of the contaminated insulation removed. I am *AMAZED* at how thorough the hard working folks at Complete were. You could almost eat off the floor of the attic. The entire crew was courteous, quick and more than fair with the price. Highly recommend.”

- Derek Hinz

“I was building my own custom home and "interviewed" several spray foam insulators. It was clear Moody Ozier had a deeper knowledge of air sealing, R-value, and building codes than anyone else, so I went with Complete Insulation. He really took an interest in my hyper efficient build and came up with additional engineering ideas to further improve the efficiency of my home. I cannot say enough good things about Moody and Id tell anyone he's trustworthy, efficient, and knows the insulation and air sealing business to great depth. Jose, Fredy, and their crews showed up on time, in uniforms, with clean trucks and did a wonderful job on instal AND cleanup. They were incredibly professional at every step and it was clear they had years of experience. I recommend Complete Insulation to anyone with encapsulation and/or insulation needs whether you are new construction, retro fit, investor, or otherwise.”

- Chad Kozloski

“The team who came from Murfreesboro, TN to our house in Chattanooga were amazing. We have a very large home. They removed all the old insulation from our three attics, sprayed with a decontaminate and then sprayed all the new insulation. All in one very long day. They were great to work with, came went they said they would, answered all our questions. Had to put the tubes all the way from the attic down to the first floor and out to the truck. They covered all the floors, stairs etc and left the place spotless. We are very pleased and would highly recommend this company.”

- Lorraine Forman