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    Senershield-VB is a one-component fluid-applied vapor impermeable air/water-resistive barrier. Waterproof and resilient, it may be spray-, roller-, trowel-, or brush-applied directly to approved wall substrates. Senershield-VB can be applied in temperatures as low as 25°F (-4°C) and rising.​​

    It provides excellent secondary moisture protection behind most wall claddings including EIFS, stucco (slip sheet required), brick, siding and metal panels.



    ​Meets ICC-ES AC212 water-resistive barrier tests

    ​One fully qualified air/water-resistive barrier material for the entire building

    ​Meets requirements of ICC-ES AC 148

    ​Can be used as a flexible flashing in rough openings or through-wall penetrations

    ​Meets ASTM D 1970 Nail Sealability Requirements


    ​Approved for Senergy Wall Systems

    ​Full system warranty with Senergy EIFS and stucco wall claddings

    ​Liquid-applied, continuously-bonded membrane; eliminates seams, lap joints and staples

    ​Transfers wind loads directly to the substrate

    ​One component, water-based, very low VOC content

    ​Safe for workers and the environment, low odor, easy application

    ​Nonflammable as applied

    ​Promotes workplace safety

    ​Compatible with lightweight, low-cost spray equipment

    ​Fast, easy economical application

    ​No primer required

    ​Single pass application on most substrates


    Senershield-VB is used as a vapor impermeable air/water-resistive barrier over the following exterior wall substrates:

    • ASTM C1177 type sheathings, including DensGlass™ exterior sheathing, e²XP™ sheathing, GlasRoc® sheathing, Securock™ glass-mat sheathing, Weather Defense™ Platinum sheathing, GreenGlass® sheathing

    • PermaBase™ brand cement board by National Gypsum (or other ASTM C1325 Type A Exterior approved cement boards)

    • Untreated Exposure I or exterior plywood sheathing (grade C-D or better)

    • Untreated Exposure I OSB

    • Gypsum sheathing (ASTM C79/ASTM C1396)

    • Poured concrete/unit masonry 

    Senershield-VB should not be used for below grade applications or on surfaces subject to water immersion.

    Senershield-VB complies with the air barrier impermeability requirements of the Massachusetts Energy Code.​