ASTM E2837-23a
(Test Method)Standard Test Method for Determining the Fire Resistance of Continuity Head-of-Wall Joint Systems Installed Between Rated Wall Assemblies and Nonrated Horizontal Assemblies
Standard Test Method for Determining the Fire Resistance of Continuity Head-of-Wall Joint Systems Installed Between Rated Wall Assemblies and Nonrated Horizontal Assemblies
SIGNIFICANCE AND USE
5.1 This test method evaluates the following under the specified test conditions:
5.1.1 The ability of a test specimen to undergo movement without reducing its fire resistance rating, and
5.1.2 The duration for which a test specimen will contain a fire and retain its integrity during a predetermined fire resistive test exposure.
5.2 This test method provides for the following measurements and evaluations where applicable:
5.2.1 Ability of the test specimen to movement cycle.
5.2.2 Ability of the test specimen to prohibit the passage of flames and hot gases.
5.2.3 Transmission of heat through the test specimen.
5.2.4 Ability of the test specimen to resist the passage of water during a hose stream test.
5.3 This test method does not provide the following:
5.3.1 Any information about the rated wall assembly because its performance has already been determined.
5.3.2 Evaluation of the degree by which the test specimen contributes to the fire hazard by generation of smoke, toxic gases, or other products of combustion.
5.3.3 Measurement of the degree of control or limitation of the passage of smoke or products of combustion through the test specimen.
5.3.4 Measurement of flame spread over the surface of the test specimen.
Note 3: The information in 5.3.1 – 5.3.4 may be determined by other suitable fire resistive test methods. For example, 5.3.4 may be determined by Test Method E84.
5.4 In this procedure, the test specimens are subjected to one or more specific tests under laboratory conditions. When different test conditions are substituted or the end-use conditions are changed, it is not always possible by, or from, this test method to predict changes to the characteristics measured. Therefore, the results are valid only for the exposure conditions described in this test method.
SCOPE
1.1 This fire-test-response test method measures the performance of a unique fire resistive joint system called a continuity head-of-wall joint system, which is designed to be used between a rated wall assembly and a nonrated horizontal assembly during a fire resistance test.
1.2 This fire-test-response standard does not measure the performance of the rated wall assembly or the nonrated horizontal assembly.
Note 1: Typically, rated wall assemblies obtain a fire resistance rating after being tested to Test Method E119, UL 263, CAN/ULC-S101, or other similar fire resistance test methods.
1.3 This fire-test-response standard is not intended to evaluate the connections between rated wall assemblies and nonrated horizontal assemblies unless part of the continuity head-of-wall joint system.
1.4 The fire resistive test end point is the period of time elapsing before the first performance criteria is reached when the continuity head-of-wall joint system is subjected to one of two time-temperature fire exposures.
1.5 The fire exposure conditions used are either those specified by Test Method E119 for testing assemblies to standard time-temperature exposures or Test Method E1529 for testing assemblies to rapid-temperature rise fires.
1.6 This test method specifies the heating conditions, methods of test, and criteria to establish a fire resistance rating only for a continuity head-of-wall joint system.
1.7 Test results establish the performance of continuity head-of-wall joint systems to maintain continuity of fire resistance of the rated wall assembly where the continuity head-of-wall joint system interfaces with a nonrated horizontal assembly during the fire-exposure period.
1.8 Test results shall not be construed as having determined the continuity head-of-wall joint system, nonrated horizontal assembly and the rated wall assembly’s suitability for use after that fire exposure.
1.9 This test method does not provide quantitative information about the continuity head-of-wall joint system relative to the rate of leakage of smoke or gases or both. However, ...
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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: E2837 − 23a An American National Standard
Standard Test Method for
Determining the Fire Resistance of Continuity Head-of-Wall
Joint Systems Installed Between Rated Wall Assemblies and
1
Nonrated Horizontal Assemblies
This standard is issued under the fixed designation E2837; 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.
INTRODUCTION
Wall continuity is required by various model codes at joint openings, which are linear voids, gaps,
openings, or other discontinuities between or bounded by a rated wall assembly and nonrated
horizontal assemblies, to ensure that the protected joint opening has the same fire resistance rating as
the rated wall assembly. The joint opening at the termination at the top of the rated wall assembly
below the nonrated horizontal assembly must be protected by a continuity head-of-wall joint system,
which has a fire resistance rating, in order to maintain continuity established by the rated wall
assembly. This test method is not required when the rated wall assembly contacts nonrated horizontal
assemblies when there is no joint opening. Normally such joint openings are denoted as “linear”
because the length is normally greater than their width, which is defined by a typical ratio of at least
10:1 as in practice. Joint openings are present in buildings as a result of: (1) Design to accommodate
various movements induced by thermal differentials, seismicity, and wind loads and exists as a
clearance separation. (2) Acceptable dimensional tolerances between two or more building elements,
for example, between non-loadbearing walls and roofs. (3) Inadequate design, inaccurate assembly,
repairs or damage to the building. There are many unique applications for joint systems in buildings.
To address this issue there are different types of continuity head-of-wall joint systems. It is not possible
to test all fire-resistive joints systems using the same test apparatus or method of test, for example, Test
Method E2307 employs the ISMA test apparatus. A continuity head-of-wall joint system is a particular
type of fire-resistive joint system that provides fire resistance to prevent passage of fire from
compartment to compartment within the building at the joint opening between a rated wall assembly
and a nonrated horizontal assembly. A continuity head-of-wall joint system is a unique building
construction detail not addressed by other fire test methods such as Test Method E1966 that tests joint
systems installed between two assemblies that are fire resistance rated.
NOTE 1—Typically, rated wall assemblies obtain a fire resistance rating
1. Scope
after being tested to Test Method E119, UL 263, CAN/ULC-S101, or other
1.1 This fire-test-response test method measures the perfor-
similar fire resistance test methods.
mance of a unique fire resistive joint system called a continuity
1.3 This fire-test-response standard is not intended to evalu-
head-of-wall joint system, which is designed to be used
ate the connections between rated wall assemblies and non-
between a rated wall assembly and a nonrated horizontal
rated horizontal assemblies unless part of the continuity
assembly during a fire resistance test.
head-of-wall joint system.
1.2 This fire-test-response standard does not measure the
performance of the rated wall assembly or the nonrated
1.4 The fire resistive test end point is the period of time
horizontal assembly.
elapsing before the first performance criteria is reached when
the continuity head-of-wall joint system is subjected to one of
two time-temperature fire exposures.
1
This test method is under the jurisdiction of ASTM Committee E05 on Fire
Standards and is the direct responsibility of Subcommittee E05.11 on Fire 1.5 The fire exposure conditions used are either those
Resistance.
specified by Test Method E119 for testing assemblies to
Current edition approved Dec. 1, 2023. Published December 2023. Originally
standard time-temperature exposures or Test Method E1529 for
approved in 2011. Last previous edition approved in 2023 as E2837 – 23. DOI:
10.1520/E2837-23A. testing assemblies to rapid-temperature rise fires.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2837 − 23a
1.6 This test method specifies the heating conditions, meth- 2. Referenced Documents
ods of test, and criteria to establish a fire resistanc
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E2837 − 23 E2837 − 23a An American National Standard
Standard Test Method for
Determining the Fire Resistance of Continuity Head-of-Wall
Joint Systems Installed Between Rated Wall Assemblies and
1
Nonrated Horizontal Assemblies
This standard is issued under the fixed designation E2837; 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.
INTRODUCTION
Wall continuity is required by various model codes at joint openings, which are linear voids, gaps,
openings, or other discontinuities between or bounded by a rated wall assembly and nonrated
horizontal assemblies, to ensure that the protected joint opening has the same fire resistance rating as
the rated wall assembly. The joint opening at the termination at the top of the rated wall assembly
below the nonrated horizontal assembly must be protected by a continuity head-of-wall joint system,
which has a fire resistance rating, in order to maintain continuity established by the rated wall
assembly. This test method is not required when the rated wall assembly contacts nonrated horizontal
assemblies when there is no joint opening. Normally such joint openings are denoted as “linear”
because the length is normally greater than their width, which is defined by a typical ratio of at least
10:1 as in practice. Joint openings are present in buildings as a result of: (1) Design to accommodate
various movements induced by thermal differentials, seismicity, and wind loads and exists as a
clearance separation. (2) Acceptable dimensional tolerances between two or more building elements,
for example, between non-loadbearing walls and roofs. (3) Inadequate design, inaccurate assembly,
repairs or damage to the building. There are many unique applications for joint systems in buildings.
To address this issue there are different types of continuity head-of-wall joint systems. It is not possible
to test all fire-resistive joints systems using the same test apparatus or method of test, for example, Test
Method E2307 employs the ISMA test apparatus. A continuity head-of-wall joint system is a particular
type of fire-resistive joint system that provides fire resistance to prevent passage of fire from
compartment to compartment within the building at the joint opening between a rated wall assembly
and a nonrated horizontal assembly. A continuity head-of-wall joint system is a unique building
construction detail not addressed by other fire test methods such as Test Method E1966 that tests joint
systems installed between two assemblies that are fire resistance rated.
1. Scope
1.1 This fire-test-response test method measures the performance of a unique fire resistive joint system called a continuity
head-of-wall joint system, which is designed to be used between a rated wall assembly and a nonrated horizontal assembly during
a fire resistance test.
1.2 This fire-test-response standard does not measure the performance of the following:rated wall assembly or the nonrated
horizontal assembly.
1
This test method is under the jurisdiction of ASTM Committee E05 on Fire Standards and is the direct responsibility of Subcommittee E05.11 on Fire Resistance.
Current edition approved July 1, 2023Dec. 1, 2023. Published August 2023December 2023. Originally approved in 2011. Last previous edition approved in 20172023 as
E2837 – 13 (2017).E2837 – 23. DOI: 10.1520/E2837-23.10.1520/E2837-23A.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2837 − 23a
1.2.1 The rated wall assembly, which is already established by other test methods, such as Test Method E119, or
1.2.2 The nonrated horizontal assembly, which would be established by other test methods such as Test Method E119.
NOTE 1—Typically, rated wall assemblies obtain a fire resistance rating after being tested to Test Method E119, NFPA 251, UL 263, CAN/ULC-S101,
or other similar fire resistiveresistance test methods.
1.3 This fire-test-response standard is not intended to evaluate the connections between rated wall assemblies and nonrated
horizontal assemblies unless part of the continuity head-of-wall joint system.
1.4 The fire resistive test end point is the period of time elapsing before the first performance criteria is reached when the
continuity
...
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