Barrier-Bac

Barrier-Bac VBC-250 vapor barrier film

26 mil Composite vapor barrier with non-woven geo-textile fabric lamination. With the extra lamination, VBC-250 provides a mechanical bond with concrete when placed with geo-textile facing concrete pour (Peel Adhesion to Concrete up to 8 lbs/in). This bond greatly improves slab protection from moisture migration by maintaining tight contact with the slab, especially under expansive soil conditions where foundations may swell and contract.

Applications

Typical use includes projects with expansive soil conditions, void formed slab and high water table. Expansive soil is usually clay or shale that swells when wet and contracts when dry. The repeated swelling and contracting causes cracked foundations. Projects involving expansive soils require special foundations and void forms are usually used. The strong mechanical bond between the concrete and VBC-250’s geo-textile layer gives extra protection against moisture migration in expansive soil applications.

Availability

VBC-250 is available in standard roll, green color, and size 12 ft x 150 ft. However, other colors and sizes are available upon request.

* Expansive soil problems are more severely affected in the following areas: Colorado, Texas, North Dakota, South Dakota, Montana, Louisiana and Mississippi.