W. R. Meadows, Inc.

Air Barriers


Uncontrolled air leakage through the building envelope will affect the performance of the building materials within the wall assembly. You’ve made a major investment in your facilities and that investment deserves the very best protection available. That very best protection is offered by the AIR-SHIELD line of air barriers from W. R. MEADOWS. The AIR-SHIELD line includes fluid-applied air barriers, sheet membranes, and vapor-permeable formulations.

New from W. R. MEADOWS comes AIR-SHIELD SMP sheet membrane vapor permeable air/liquid moisture barrier. It is a self-adhesive membrane that is designed to be fully bonded to the substrate without the use of an adhesive or primer, saving time and money by removing this additional step. AIR-SHIELD SMP is tough, durable, and exhibits excellent resistance to air leakage and liquid intrusion, while at the same time allowing the wall assembly to dry through its vapor permeable material.

AIR-SHIELD SMP has been specifically formulated to act as an air and liquid moisture barrier, allowing vapor to pass through it. It may be applied to most common surfaces and integrated into various wall assemblies. AIR-SHIELD SMP is suitable for both new construction and retrofit applications and works equally well as an air barrier on precast concrete, cast-in-place concrete, masonry (concrete block), interior and exterior gypsum board, Styrofoam, primed steel, aluminum mill finish, anodized aluminum, primed galvanized metal, drywall, and plywood.

AIR-SHIELD SMP can be left exposed to UV rays for up to 90 days. It can be installed in a wide range of temperatures from 14° – 140° F (-10° – 60° C). AIR-SHIELD SMP offers a controlled thickness membrane that is highly flexible with the ability to bridge cracks.
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