ASTM E3158-18
(Test Method)Standard Test Method for Measuring the Air Leakage Rate of a Large or Multizone Building
Standard Test Method for Measuring the Air Leakage Rate of a Large or Multizone Building
SIGNIFICANCE AND USE
5.1 This test method does not establish requirements for airtightness but provides means of assessing compliance with specified air-leakage rates established elsewhere.
5.2 This test method is used to determine the airtightness of building envelopes or portions thereof by measuring the air leakage rate at specified reference pressure differentials.
5.3 This test method provides:
5.3.1 Specific directions for determining acceptable weather conditions for conducting the test.
5.3.2 Two different test boundary preparation conditions; building envelope (9.1.1.1), and operational envelope (9.1.1.2).
5.3.3 Testing conducted in a range of pressures from 10 Pa (0.04 in. WC) to 100 Pa (0.40 in. WC).
5.4 A measurement of the air-leakage rate of the constructed building envelope. Test methods that measure the air permeance of materials (Test Method E2178) and air leakage of assemblies (Test Method E2357) alone do not address the various complexities of the constructed building envelope, including but not limited to design, sequence, constructability, workmanship, and the transitions between assemblies.
5.5 This test method applies to all multizone and large building types and portions or subsections of buildings. It can be used to test envelopes that consist of a single zone or subsections of a zone that can be tested as a single zone. Test envelopes that are entirely composed of subsections separated by interior partitions or floors, or both, may be tested as a single zone by maintaining baseline relationships between these subsections throughout testing. (See Appendix X1. See also Test Methods E779 and E1827.) Isolated subsections, each with its own specified air-leakage rate, shall be treated as separate test envelopes and tested separately. While testing isolated subsections, monitoring must be conducted for any extraneous/flanking air movement between the different zones.
5.6 The building preparations prior to testing (fenestration positions and pr...
SCOPE
1.1 This standard test method provides a quantitative field-test procedure and calculation method for assessing an air leakage rate using a fan-induced pressure differential(s) across the building envelope, generated by blower doors or equivalent equipment.
1.2 Building setup conditions in accordance with defining the test boundaries appropriate for testing the envelope’s air leakage are defined in this test method.
1.3 Procedure to determine the air pressure boundaries of the test envelope to be tested are provided in this test method.
1.4 This test method applies to all multizone and large building types and portions or subsections thereof.
1.5 This test method defines three test procedures: multipoint regression, repeated single point, and repeated two-point air leakage rate testing.
1.6 This test method allows for testing the test envelope in a pressurized condition, a depressurized condition, or in both conditions and averaging the results.
1.7 This test method applies to an air leakage rate specification with a reference pressure greater than 10 Pa (0.04 in. WC) and not greater than 100 Pa (0.40 in. WC).
1.8 This test method describes two methods of preparation for the building in order to conduct the test: the building envelope where HVAC-related openings are excluded, and on the operational envelope where the HVAC-related openings are included.
1.9 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.10 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.11 This international standard was developed in accordance...
General Information
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: E3158 − 18
Standard Test Method for
Measuring the Air Leakage Rate of a Large or Multizone
1
Building
This standard is issued under the fixed designation E3158; 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 priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.1 This standard test method provides a quantitative field-
1.11 This international standard was developed in accor-
test procedure and calculation method for assessing an air
dance with internationally recognized principles on standard-
leakage rate using a fan-induced pressure differential(s) across
ization established in the Decision on Principles for the
thebuildingenvelope, generated by blower doors orequivalent
Development of International Standards, Guides and Recom-
equipment.
mendations issued by the World Trade Organization Technical
1.2 Building setup conditions in accordance with defining
Barriers to Trade (TBT) Committee.
the test boundaries appropriate for testing the envelope’s air
2. Referenced Documents
leakage are defined in this test method.
2
2.1 ASTM Standards:
1.3 Procedure to determine the air pressure boundaries of
E456 Terminology Relating to Quality and Statistics
the test envelope to be tested are provided in this test method.
E631 Terminology of Building Constructions
1.4 This test method applies to all multizone and large
E779 Test Method for DeterminingAir Leakage Rate by Fan
building types and portions or subsections thereof.
Pressurization
1.5 This test method defines three test procedures: multi-
E1186 Practices for Air Leakage Site Detection in Building
point regression, repeated single point, and repeated two-point
Envelopes and Air Barrier Systems
air leakage rate testing.
E1258 Test Method for Airflow Calibration of Fan Pressur-
ization Devices
1.6 This test method allows for testing the test envelope in
E1827 Test Methods for Determining Airtightness of Build-
a pressurized condition, a depressurized condition, or in both
ings Using an Orifice Blower Door
conditions and averaging the results.
E2178 Test Method forAir Permeance of Building Materials
1.7 This test method applies to an air leakage rate specifi-
E2357 TestMethodforDeterminingAirLeakageRateofAir
cation with a reference pressure greater than 10 Pa (0.04 in.
Barrier Assemblies
WC) and not greater than 100 Pa (0.40 in. WC).
3. Terminology
1.8 This test method describes two methods of preparation
for the building in order to conduct the test: the building
3.1 Definitions:
envelope where HVAC-related openings are excluded, and on
3.1.1 For definitions of general terms related to building
theoperationalenvelopewheretheHVAC-relatedopeningsare
construction used in this test method, refer to Terminology
included.
E631 and for general terms related to accuracy, bias, precision,
and uncertainty, refer to Terminology E456.
1.9 Units—The values stated in SI units are to be regarded
as standard. The values given in parentheses after SI units are
3.2 Definitions of Terms Specific to This Standard:
provided for information only and are not considered standard.
3.2.1 baseline pressure, n—internal test envelope pressure
with the air movement equipment off and sealed, recorded
1.10 This standard does not purport to address all of the
while the building is configured for the test.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3.2.2 building envelope, n—defined boundary of the test
sample to determine its air leakage rate excluding the HVAC-
related devices (HVAC devices sealed).
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This test method is under the jurisdiction of ASTM Committee E06 on
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Performance of Buildings and is the direct responsibility of Subcommittee E06.41 For referenced ASTM standards, visit the ASTM website, www.astm.org, or
on Air Leakage and Ventilation Performance. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Dec. 1, 2018. Published January 2019. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
E3158–18. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E3158 − 18
3.2.3 envelope pressure, n—differential in air pressure 4.2 This test me
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