ASTM E2957-17
(Test Method)Standard Test Method for Resistance to Wildfire Penetration of Eaves, Soffits and Other Projections
Standard Test Method for Resistance to Wildfire Penetration of Eaves, Soffits and Other Projections
SIGNIFICANCE AND USE
5.1 The test method described herein monitors the fire characteristics and the ability of eave overhangs and other projections to resist exterior fire penetration from underneath under the specified fire exposure conditions.
5.2 Representative joints and other characteristics of the eave overhang or projection shall be included in the test specimen when these details are representative of the end-use construction.
5.3 The test method does not apply to vents or perforated materials used to enclose or cap eaves, soffits, and other projections.
Note 1: Test Methods E2912 and E2886/E2886M are methods used to test vents or perforated materials to resist direct flame impingement and flame penetration into the building.
5.4 The test method is devised for eave overhangs and other projections independent of the materials covering the building envelope.
Note 2: Heat contribution from burning materials covering the building envelope beyond the prescribed fire exposure is not considered in this test method.
5.5 The test method does not necessarily represent the expected performance of eave overhang and projections under all actual fire conditions, but it does provide a basis for comparing eave overhang and projections materials when subjected to the test procedure described herein.
5.6 In this procedure, the test specimen is subjected to specific laboratory fire test conditions. If different test conditions are substituted or the anticipated end-use conditions are changed, it is not known whether it is possible by use of this test to predict changes in the performance characteristics measured. Therefore, the results are strictly valid only for the fire test conditions and construction tested.
5.7 The test method does not provide any basis for determining the fire resistance characteristics of eave overhangs or projections when exposed to a fire originating in the building.
5.8 The test method does not address interior or exterior flame spread.
SCOPE
1.1 This fire-test-response standard prescribes a method for qualitatively assessing the resistance to fire penetration of eave overhangs and other projections, such as the soffits of roof eaves and cantilevered floor projections, when exposed to direct flame impingement from a simulated external wildfire exposure, such as encountered in a “Wildland Urban Interface” scenario. This test method provides data suitable for comparing the relative performance of materials, which are used as the exposed underside surfaces of eave overhangs and other projections.
1.2 This test method measures the ability of eave overhangs and other projections to resist fire penetration from the exterior into the wall cavity or unexposed side of the test specimen under the conditions of exposure.
1.3 This test method is applicable to eave overhangs and other projections such as the soffits of roof eaves and cantilevered floor projections intended for use with either combustible or noncombustible building envelopes.
1.4 Limitations of the test method are listed in Section 5.
1.5 The values stated in metric units are to be regarded as the standard. Values in parentheses are for information only.
1.6 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 and health practices and determine the applicability of regulatory limitations prior to use.
1.7 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled laboratory conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products or assemblies under actual fire conditions.
1.8 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.
1.9 The t...
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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:E2957 −17 An American National Standard
Standard Test Method for
Resistance to Wildfire Penetration of Eaves, Soffits and
1
Other Projections
This standard is issued under the fixed designation E2957; 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 1.8 Fire testing is inherently hazardous. Adequate safe-
guards for personnel and property shall be employed in
1.1 This fire-test-response standard prescribes a method for
conducting these tests.
qualitatively assessing the resistance to fire penetration of eave
1.9 The text of this standard references notes and footnotes
overhangs and other projections, such as the soffits of roof
which provide explanatory material. These notes and footnotes
eaves and cantilevered floor projections, when exposed to
(including those in tables and figures) shall not be considered
direct flame impingement from a simulated external wildfire
as requirements of the standard.
exposure, such as encountered in a “Wildland Urban Interface”
1.10 This international standard was developed in accor-
scenario.Thistestmethodprovidesdatasuitableforcomparing
dance with internationally recognized principles on standard-
the relative performance of materials, which are used as the
ization established in the Decision on Principles for the
exposed underside surfaces of eave overhangs and other
Development of International Standards, Guides and Recom-
projections.
mendations issued by the World Trade Organization Technical
1.2 This test method measures the ability of eave overhangs
Barriers to Trade (TBT) Committee.
and other projections to resist fire penetration from the exterior
2. Referenced Documents
into the wall cavity or unexposed side of the test specimen
2
under the conditions of exposure.
2.1 ASTM Standards:
C1396 Specification for Gypsum Board
1.3 This test method is applicable to eave overhangs and
D2898 Practice for Accelerated Weathering of Fire-
other projections such as the soffits of roof eaves and cantile-
Retardant-Treated Wood for Fire Testing
veredfloorprojectionsintendedforusewitheithercombustible
D4442 Test Methods for Direct Moisture Content Measure-
or noncombustible building envelopes.
ment of Wood and Wood-Based Materials
1.4 Limitations of the test method are listed in Section 5.
D4444 Test Method for Laboratory Standardization and
Calibration of Hand-Held Moisture Meters
1.5 The values stated in metric units are to be regarded as
D6662 Specification for Polyolefin-Based Plastic Lumber
the standard. Values in parentheses are for information only.
Decking Boards
1.6 This standard does not purport to address all of the
D7032 Specification for Establishing Performance Ratings
safety concerns, if any, associated with its use. It is the
for Wood-Plastic Composite and Plastic Lumber Deck
responsibility of the user of this standard to establish appro-
Boards, Stair Treads, Guards, and Handrails
priate safety and health practices and determine the applica-
E176 Terminology of Fire Standards
bility of regulatory limitations prior to use.
E631 Terminology of Building Constructions
1.7 This standard is used to measure and describe the
E2707 Test Method for Determining Fire Penetration of
response of materials, products, or assemblies to heat and
Exterior Wall Assemblies Using a Direct Flame Impinge-
flame under controlled laboratory conditions, but does not by
ment Exposure
itself incorporate all factors required for fire hazard or fire risk
E2912 Test Method for Fire Test of Non-Mechanical Fire
assessment of the materials, products or assemblies under
Dampers Used in Vented Construction
actual fire conditions.
E2886/E2886M Test Method for Evaluating the Ability of
Exterior Vents to Resist the Entry of Embers and Direct
Flame Impingement
1
This test method is under the jurisdiction of ASTM Committee E05 on Fire
Standards and is the direct responsibility of Subcommittee E05.14 on External Fire
2
Exposures. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved May 1, 2017. Published May 2017. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2015. Last previous edition approved in 2015 as E2957-15. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/E2957-17. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United State
...
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: E2957 − 15 E2957 − 17 An American National Standard
Standard Test Method for
Resistance to Wildfire Penetration of Eaves, Soffits and
1
Other Projections
This standard is issued under the fixed designation E2957; 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
1.1 This fire-test-response standard prescribes a method for qualitatively assessing the resistance to fire penetration of eave
overhangs and other projections, such as the soffits of roof eaves and cantilevered floor projections, when exposed to direct flame
impingement from a simulated external wildfire exposure, such as encountered in a “Wildland Urban Interface” scenario. This test
method provides data suitable for comparing the relative performance of materials, which are used as the exposed underside
surfaces of eave overhangs and other projections.
1.2 This test method measures the ability of eave overhangs and other projections to resist fire penetration from the exterior into
the wall cavity or unexposed side of the test specimen under the conditions of exposure.
1.3 This test method is applicable to eave overhangs and other projections such as the soffits of roof eaves and cantilevered floor
projections intended for use with either combustible or noncombustible building envelopes.
1.4 Limitations of the test method are listed in Section 5.
1.5 The values stated in metric units are to be regarded as the standard. Values in parentheses are for information only.
1.6 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 and health practices and determine the applicability of regulatory
limitations prior to use.
1.7 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under
controlled laboratory conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of
the materials, products or assemblies under actual fire conditions.
1.8 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these
tests.
1.9 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes
(including those in tables and figures) shall not be considered as requirements of the standard.
1.10 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C1396 Specification for Gypsum Board
D2898 Practice for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing
D4442 Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
D4444 Test Method for Laboratory Standardization and Calibration of Hand-Held Moisture Meters
D6662 Specification for Polyolefin-Based Plastic Lumber Decking Boards
D7032 Specification for Establishing Performance Ratings for Wood-Plastic Composite and Plastic Lumber Deck Boards, Stair
Treads, Guards, and Handrails
E176 Terminology of Fire Standards
1
This test method is under the jurisdiction of ASTM Committee E05 on Fire Standards and is the direct responsibility of Subcommittee E05.14 on External Fire Exposures.
Current edition approved July 1, 2015May 1, 2017. Published August 2015May 2017. Originally approved in 2015. Last previous edition approved in 2015 as E2957-15.
DOI: 10.1520/E2957-1510.1520/E2957-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E2957 − 17
E631 Terminology of Building Constructions
E2707 Test Method for Determining Fire Penetration of Exterior Wall Assemblies Using a Direct Fla
...
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