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W R Meadows Air Shield


W R Meadows Air Shield – PDF

W R Meadows Air Shield
Self-Adhering Air/Vapor and Liquid Moisture Barrier

W R Meadows Air Shield self-adhering air/vapor and liquid moisture barrier is part of a total W. R. MEADOWS system to complete the building envelope.  It is a roll-type product that is nominally 40 mils thick. The membrane’s controlled thickness is fabricated from cross-laminated polyethylene bonded to specially modified asphalt.

This unique, self-adhesive membrane, protected by a special release paper, is strong and durable. It remains flexible when surface mounted and will adhere to most primed surfaces at minimum temperatures of 40° F (4° C).   The membrane provides excellent protection as a tough barrier that won’t shrink, sag, dry out, crack, or rot. It offers excellent resistance to punctures during installation. AIR-SHIELD can also be used as a transition membrane to provide protection against water infiltration in critical detail areas, such as window and door openings, deck-to-wall intersections, corner boards, wall-to-wall tie-ins, foundation sill plates, sheathing panel seams, under stucco finishes, masonry walls, and other non-roof detail areas.

AIR-SHIELD is packaged in rolls of 38.5″ (.97 m) x 75′ (22.86 m).  AIR-SHIELD can also be cut to the desired width.

Optional sizes include:
4″ x 75′, 6″ x 75′, 9″ x 75′, 12″ x 75′, 16″ x 75′
18″ x 75′, 20″ x 75′ and 24″ x 75′.

AIR-SHIELD should be stored palletized and protected from rain and/or physical damage. Do not store at temperatures above 90º F (32.2º C) for extended periods of time. Do not leave the membrane exposed to direct sunlight. Do not double-deck pallets.  Store away from sparks or flames. Outdoors, store AIR-SHIELD on pallets and completely cover.

W. R. Meadows Air Shield Uses:
AIR-SHIELD self-adhering air/vapor and liquid moisture barrier are designed for a variety of uses.

Primary applications include cavity wall and masonry wall construction. AIR-SHIELD works equally well as air and/or vapor 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.

W. R. Meadows Air Shield Specifications:

  • Exceeds the requirements of the Massachusetts Commercial Energy Code for Building Envelope Systems.
  • Meets CAN/CGSB-51-33, Type I Water Vapor
    Permeance Requirements.
  • ABAA Section 07261 Self-Adhering Air and Vapor Barrier Specification

Check out our other W.R. Meadows products here.

product data safety sheet


Additional information

Weight45 lbs
Dimensions12 × 12 × 25 in

6 Rolls in a box


12"x75', 18"x75', 36"x75', 6"x75'