ASTM E2357-05

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Designation: E2357 – 05
Standard Test Method for
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Determining Air Leakage of Air Barrier Assemblies
This standard is issued under the fixed designation E2357; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.1 For definitions of terms used in this test method, also
refer to Terminology E631.
1.1 This test method covers the determination of the air
3.2 Definitions of Terms Specific to This Standard:
leakage rate of air barrier assemblies that are used in building
3.2.1 air barrier—a designated “plane” of reduced air flow
enclosures. This procedure measures the air leakage of a
between different environments.
representative air barrier assembly before and after exposure to
3.2.2 air barrier material—a primary element that provides
specific conditioning cycles and then assigns a rating depen-
a continuous barrier to the movement of air.
dent upon the results. Although this is a laboratory procedure,
3.2.3 air barrier accessory—a transitional component of
the method may also be applied to site mockups.
the air barrier that provides continuity.
1.2 The values stated in SI units are to be regarded as
3.2.4 air barrier assembly—the air barrier materials and
standard. No other units of measurement are included in this
accessories that provide a continuous designated plane to the
standard.
movement of air through portions of building enclosure assem-
1.3 This standard does not purport to address all of the
blies.
safety concerns, if any, associated with its use. It is the
3.2.5 air barrier system—a combination of air barrier as-
responsibility of the user of this standard to establish appro-
semblies installed to provide a continuous barrier to the
priate safety and health practices and determine the applica-
movement of air through building enclosures.
bility of regulatory limitations prior to use.
3.2.6 air leakage rate—the quantitative measure of air
2. Referenced Documents passage through a set surface area of an assembly within a
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given time period under a pressure differential between the two
2.1 ASTM Standards:
sides of the assembly.
E283 Test Method for Determining Rate of Air Leakage
3.2.7 building enclosure—a system of building components
Through Exterior Windows, Curtain Walls, and Doors
and materials designed and installed in such a manner as to
Under Specified Pressure DifferencesAcross the Specimen
provide a barrier between different environments, including
E330 Test Method for Structural Performance of Exterior
dissimilar interior environments.
Windows, Doors, Skylights and Curtain Walls by Uniform
3.2.8 continuity—an uninterrupted succession of an air
Static Air Pressure Difference
barrier materials, accessories and assemblies.
E631 Terminology of Building Constructions
3.2.9 durability—the ability of a building component to
E783 Test Method for Field Measurement of Air Leakage
perform its required functions over a period of time within the
Through Installed Exterior Windows and Doors
environment to which it is exposed.
E1677 Specification for an Air Barrier (AB) Material or
3.2.10 negative pressure—air pressure on one side of a
System for Low-Rise Framed Building Walls
building enclosure lower than on the other side.
E2178 Test Method for Air Permeance of Building Materi-
3.2.11 positive pressure—air pressure on one side of a
als
building enclosure higher than on the other side.
3. Terminology
4. Summary of Test Method
3.1 Definitions:
4.1 This test method establishes a specimen preparation
protocol with which an air barrier assembly may be evaluated.
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This test method is under the jurisdiction of ASTM Committee E06 on
Atest specimen is constructed and tested in separate pressures.
Performance of Buildings and is the direct responsibility of Subcommittee E06.41
Up to three specimens are constructed, each additionally
on Air Leakage and Ventilation Performance.
representing different field conditions. Specimen 3 is optional
Current edition approved Oct. 1, 2005. Published October 2005. DOI: 10.1520/
E2357-05.
and may be combined with Specimen 2. By applying air
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
pressure differentials across the specimens in stages, the air
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
barrier and system components may be evaluated as to their
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. specific air leakage.
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