

ENVIRO-BARRIER is a single-component, fluid-applied elastomeric membrane designed to provide an effective air, water, and vapor barrier when applied to above-grade wall assemblies. Once cured, it forms a resilient, monolithic, fully adhered membrane that resists air leakage, water penetration, and acts as a vapor barrier.
FEATURES
- Wide Temperature Flexibility: Remains flexible across a broad temperature range.
- Superior Air Barrier Performance: Exceeds the highest industry standards for air barrier efficiency.
- Cost-Effective Spray Application: Easy to apply with minimal equipment.
- Asphalt-Free Formulation: Provides a cleaner, safer solution.
- Excellent Adhesion: Adheres to a wide range of construction materials, including exterior gypsum board, CMU, concrete, stone, wood, and metal.
PACKAGING
- 5 Gallon
- 55 Gallon
DOCUMENTS
NOTE
- HB Sealant is recommended for patching air barrier repairs, terminating edges of vertical transitional tapes, and filling voids during the application process.
RESOURCES

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