Product Description

ENVIRO-BARRIERâ„¢ VP is a single component, fluid applied, elastomeric membrane to provide a vapor permeable air and water barrier when applied to above grade wall assemblies. It cures to form a resilient, monolithic, fully adhered elastomeric membrane which resists air leakage and water penetration but allows vapor diffusion.
Complies with NFPA 285 in various wall assemblies.

  • Remains flexible over a wide temperature range
  • Meets and exceeds highest industry standards for air barrier performance
  • Cost effective easy spray application
  • Asphalt-free formulation
  • Excellent adhesion to most construction materials such as exterior gypsum board, CMU, concrete, stone, wood and metal.


  • ENVIRO-BARRIERâ„¢ VP Submittal Sheet and MSDS files are available for download in the column to the right.
  • HB Sealantrecommended for patching air barrier repairs, terminating edges of vertical transitional tapes, and filling voids during the air barrier application process.