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Tech Talk Bulletin: Henry® Air Barrier Assemblies Meet ASTM E2357

Effective 07/23/2018
Supersedes all previous versions

To date, there are two industry-recognized methods of defining air permeance for air barriers.

Industry standard for determining air leakage
Test type Test Method
Individual product testing ASTM E2178 - Standard Test Method for Air Permeance of Building Materials
Assembly testing ASTM E2357 - Standard Test Method for Determining Air Leakage of Air Barrier Assemblies

ASTM E2357 simulates an installed air barrier assembly

ASTM E2357 measures the air leakage of an “opaque” (non-penetrated) wall, and compares it with the air leakage of a wall containing pipe penetrations, brick ties, electrical boxes, foundation transitions, lap seams and a rough window opening; recording positive and negative air pressure, wind gust loads and sustained gust loads. If the measured air leakage rate of the penetrated wall is greater than 10% of the opaque wall, the system fails.

Henry® assemblies that meet ASTM E2357
Henry® air barrier tested assembly Air barrier assembly type Assembly permeance Status
Blueskin® SA Self-Adhered Water Resistive Air Barrier Self-adhered Non-permeable Passed
Blueskin® VP160 Self-Adhered Water Resistive Air Barrier Self-adhered Vapor permeable Passed
Air-Bloc® 16MR Air and Vapor Barrier Fluid applied Non-permeable Passed
Air-Bloc® 17MR Vapor Permeable Air Barrier Fluid applied Vapor permeable Passed
Air-Bloc® 31MR Vapor Permeable Air Barrier Fluid applied Vapor permeable Passed
Air-Bloc® 32MR Air and Vapor Barrier Fluid applied Non-permeable Passed
Air-Bloc® 33MR UV-Resistant, Vapor Permeable Air Barrier Fluid applied Vapor permeable Passed

Henry, Blueskin and Air-Bloc are registered trademarks of Henry Company

Download our Tech Talk Bulletin: Meeting ASTM E2357Download PDF