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ASTM D7052/D7052M-17

(Test Method)

Standard Test Method for Determining Impact Resistance of New Low Slope Roof Membranes Using Steel Balls (Z8295Z)

Standard Test Method for Determining Impact Resistance of New Low Slope Roof Membranes Using Steel Balls (Z8295Z)

SIGNIFICANCE AND USE
6.1 This test method provides a means of evaluating new roof membranes for resistance to specific impact energies. The method evaluates new roof membranes when first applied and also after simulated deterioration caused by the ultraviolet radiation and moisture.  
6.2 Use Class 2 for an impact resistance of 11.0 ± 0.3 J [8.1 ± 0.2 ft-lb] and Class 3 for an impact resistance of 19.4 ± 0.4 J [14.3 ± 0.3 ft-lb].
SCOPE
1.1 This test method covers the determination of impact resistance of new low slope roof membranes when applied directly over rigid insulation or cover board, or structural concrete, lightweight insulating concrete, gypsum, cementitious wood fiber or wood roof decks. The procedures were developed to determine the potential for puncture or fracture of the new roof membrane resulting from impacts by free falling steel balls resulting in specific impact energies when the new roof membrane is applied over its tested substrate within an assembly.  
1.2 This test method is intended to verify that products as described will meet a specific stated condition of impact resistance performance. Testing of asphalt shingles is beyond the scope of this test method. The tests yield classification identified as Class 2 and Class 3.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.4 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.

General Information

Status
Historical
Publication Date
28-Feb-2017
ICS
91.060.01 - Elements of buildings in general
Technical Committee
D08 - Roofing and Waterproofing
Drafting Committee
D08.20 - Roofing Membrane Systems
Current Stage
Ref Project

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ASTM D7052/D7052M-17 - Standard Test Method for Determining Impact Resistance of New Low Slope Roof Membranes Using Steel Balls (Z8295Z)ASTM D7052/D7052M-17 - Standard Test Method for Determining Impact Resistance of New Low Slope Roof Membranes Using Steel Balls (Z8295Z)
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ASTM D7052/D7052M-17 - Standard Test Method for Determining Impact Resistance of New Low Slope Roof Membranes Using Steel Balls (Z8295Z)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D7052/D7052M − 17
Standard Test Method for
Determining Impact Resistance of New Low Slope Roof
1
Membranes Using Steel Balls (Z8295Z)
This standard is issued under the fixed designation D7052/D7052M; 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 D1079Terminology Relating to Roofing and Waterproofing
G154Practice for Operating Fluorescent Ultraviolet (UV)
1.1 This test method covers the determination of impact
Lamp Apparatus for Exposure of Nonmetallic Materials
resistance of new low slope roof membranes when applied
directly over rigid insulation or cover board, or structural
3. Terminology
concrete, lightweight insulating concrete, gypsum, cementi-
3.1 For definitions of terms used in this standard, see
tious wood fiber or wood roof decks. The procedures were
Terminology D1079.
developedtodeterminethepotentialforpunctureorfractureof
the new roof membrane resulting from impacts by free falling 3.2 Definitions:
steel balls resulting in specific impact energies when the new 3.2.1 adhered roof membrane—asingleplyorbaseply(part
roof membrane is applied over its tested substrate within an of a multi-ply system) membrane that is adhered using an
assembly. adhesive.
3.2.2 field seam—a splice made in the field of a roof
1.2 This test method is intended to verify that products as
membrane which joins two sheets together using an adhesive,
described will meet a specific stated condition of impact
splicing tape, heat or solvent-welding.
resistance performance. Testing of asphalt shingles is beyond
the scope of this test method. The tests yield classification
3.2.3 mechanically fastened membranes—a single ply or
identified as Class 2 and Class 3.
base ply (part of a multi-layer system) membrane which has
been positively attached at intervals to the substrate, usually
1.3 The values stated in either SI units or inch-pound units
with fasteners and plates, or other mechanical devices such as
are to be regarded separately as standard. The values stated in
battens, or both.
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining
4. Classification
values from the two systems may result in non-conformance
4.1 Class 2—Adesignationachievedwhenaroofmembrane
with the standard.
subjected to an impact energy of approximately 11.0 6 0.3 J
1.4 This standard does not purport to address all of the
[8.1 6 0.2 ft-lb] in accordance to this test method meets the
safety concerns, if any, associated with its use. It is the
results stated in Section 11.
responsibility of the user of this standard to establish appro-
4.2 Class 3—Adesignationachievedwhenaroofmembrane
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. subjected to an impact energy of approximately 19.4 6 0.4 J
[14.3 6 0.3 ft-lb] in accordance to this test method meets the
results stated in Section 11.
2. Referenced Documents
2
2.1 ASTM Standards:
NOTE 1—Class 1 is beyond the scope of this test method.
A295/A295MSpecification for High-Carbon Anti-Friction
5. Summary of Test Method
Bearing Steel
5.1 Thistestmethodsubjectsroofmembranestoimpactsby
dropping a solid steel ball ten times from the appropriate
1
apparatus (Figs. 1 and 2) onto test samples of the roof
ThistestmethodisunderthejurisdictionofASTMCommitteeD08onRoofing
and Waterproofing and is the direct responsibility of Subcommittee D08.20 on
membrane being examined.
Roofing Membrane Systems.
5.2 Roof membrane samples are conditioned in a fluores-
Current edition approved March 1, 2017. Published March 2017. DOI: 10.1520/
D7052_D7052M-17.
cent ultraviolet condensation type artificial weathering appara-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
tus.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.2.1 Impact testing is performed on samples which are
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. conditioned and not conditioned.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7052/D7052M − 17
FIG. 1 Class 2 Test Setup
6. Significance and Use beincontactwiththesupport.Ifaspecimensupportotherthan
flat concrete is used, it shall be indicated on the test report.
6.1 This test method provides a means of evaluating new
roof membranes for resistance to specific impact energies.The
7.4 Class 2 (Fig. 1)—A steel ball meeting Specification
method evaluates new roof membranes
...

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ASTM D7052/D7052M-17(2022)(Test Method)
Standard Test Method for Determining Impact Resistance of New Low Slope Roof Membranes Using Steel Balls (Z8295Z)

SIGNIFICANCE AND USE
6.1 This test method provides a means of evaluating new roof membranes for resistance to specific impact energies. The method evaluates new roof membranes when first applied and also after simulated deterioration caused by the ultraviolet radiation and moisture.  
6.2 Use Class 2 for an impact resistance of 11.0 ± 0.3 J [8.1 ± 0.2 ft-lb] and Class 3 for an impact resistance of 19.4 ± 0.4 J [14.3 ± 0.3 ft-lb].
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1.1 This test method covers the determination of impact resistance of new low slope roof membranes when applied directly over rigid insulation or cover board, or structural concrete, lightweight insulating concrete, gypsum, cementitious wood fiber, or wood roof decks. The procedures were developed to determine the potential for puncture or fracture of the new roof membrane resulting from impacts by free-falling steel balls resulting in specific impact energies when the new roof membrane is applied over its tested substrate within an assembly.  
1.2 This test method is intended to verify that products as described will meet a specific stated condition of impact resistance performance. Testing of asphalt shingles is beyond the scope of this test method. The tests yield classification identified as Class 2 and Class 3.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.4 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.  
1.5 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.

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Standard Test Method for Determining Impact Resistance of New Low Slope Roof Membranes Using Steel Balls (Z8295Z)

SIGNIFICANCE AND USE
6.1 This test method provides a means of evaluating new roof membranes for resistance to specific impact energies. The method evaluates new roof membranes when first applied and also after simulated deterioration caused by the ultraviolet radiation and moisture.  
6.2 Use Class 2 for an impact resistance of 11.0 ± 0.3 J [8.1 ± 0.2 ft-lb] and Class 3 for an impact resistance of 19.4 ± 0.4 J [14.3 ± 0.3 ft-lb].
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1.1 This test method covers the determination of impact resistance of new low slope roof membranes when applied directly over rigid insulation or cover board, or structural concrete, lightweight insulating concrete, gypsum, cementitious wood fiber, or wood roof decks. The procedures were developed to determine the potential for puncture or fracture of the new roof membrane resulting from impacts by free-falling steel balls resulting in specific impact energies when the new roof membrane is applied over its tested substrate within an assembly.  
1.2 This test method is intended to verify that products as described will meet a specific stated condition of impact resistance performance. Testing of asphalt shingles is beyond the scope of this test method. The tests yield classification identified as Class 2 and Class 3.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
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1.5 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.

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6.1.2 Clearly defined and enforceable levels of BECx; and  
6.1.3 Minimum core competencies required of the BECxP and associated service-providers28 (see 4.2) to qualify as Fundamental or Enhanced BECx under this practice.  
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SCOPE
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1.8 This practice establishes that the Building Enclosure Commissioning Provider (BECxP) refers specifically to the individual retained by the Owner to develop, manage, and be in responsible charge of the BECx process, including individual members and technical specialists that may comprise the BECx group (see 4.2).  
1.9 The role and responsibilities of the BECxP as defined by this practice are not intended to supersede or otherwise replace the contractual obligations reserved specifically for the parties responsible for the design and construction of a building or structure, nor the duties that may otherwise be assigned to those parties by applicable regulatory or statutory law.  
1.10 This practice is not intended to warrant or otherwise guarantee the as-built or in-service durability, or both, and performance of enclosure materials, components, systems, and assemblies.  
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1.12 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 e...

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1.1 This practice covers general use in reporting structural performance tests of building constructions, elements, connections, and assemblies. A comprehensive report describing the conditions under which the structural data were recorded will enable other workers to reproduce the test methods and, as nearly as possible, the results for each material or assembly, and to reconcile differences that might be found in tests by others.  
1.2 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.  
1.3 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.

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