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.

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:

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

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

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

  4. Untreated Exposure I OSB

  5. Gypsum sheathing (ASTM C79/ASTM C1396)

  6. 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.​