Product Description
Perm-A-Barrier VPL LT membrane provides superior protection against the damaging effects of air and liquid water ingress on building structures. The product creates a solid barrier against air infiltration and exfiltration, which minimizes associated energy loss and condensation problems.
Perm-A-Barrier VPL LT membrane is vapor permeable for wall assemblies requiring this “breathable” characteristic. As a vapor permeable membrane, this product permits the transfusion of water vapor that may otherwise condense in the wall structure; but is impermeable to liquid water, which allows the material to act as a water drainage plane.
Product Advantages
- Fire resistant – meets NFPA 285 as part of various wall assemblies with foam plastic insulation
- Plasticizer, Phthalate and Halogen-free – safe and environmentally-friendly
- Air tight – protects against air passage and associated energy losses. Meets new ASTM E2357 standard as required by IECC 2012
- Vapor permeable – prevents moisture from being trapped in the wall cavity by allowing walls the ability to dry
- Low Temperature – can be applied at temperatures as lo as 20°F (-7°C)
- Fully bonded – transmits wind loads directly to the substrate
- Seamless – continuous membrane integrity with no laps
- Damp surface tolerant – can be applied to damp-to-touch surfaces
- Strong adhesion to common construction substrates such as wood, block, concrete, OSB, gypsum sheathing and metal
- Compatible with Perm-A-Barrier® Flashing Systems
Principal Applications
Vapor permeable air barrier for new and remedial commercial and residential applications where application temperatures are between 20 °F (-7 °C) and 60 °F (16 °C):
- Concrete block walls with brick veneer or pre-formed cladding panels
- Steel or wood stud walls with exterior gypsum sheathing, brick veneer or pre-formed panels, plywood and OSB
General Insulation Company Inc. is an insulation supplier / insulation distributor that stocks and fabricates a wide variety of industrial and commercial air barrier, vapor barrier, moisture and water barrier products for the construction market.
