ASTM D7655/D7655M-12(2017)
(Classification)Standard Classification for Size of Aggregate Used as Ballast for Membrane Roof Systems
Standard Classification for Size of Aggregate Used as Ballast for Membrane Roof Systems
SIGNIFICANCE AND USE
4.1 The wind resistance of ballasted membrane roof systems is determined largely by the size and weight of the ballasted used. ANSI/SPRI RP-4 provides a method for the wind design of ballasted single-ply membrane roof systems and includes specific guidelines for the size and weight of aggregate used as ballast. The aggregate size classifications provided in this standard are intended for use with the guidelines provided ANSI/SPRI RP-4 in designing the wind resistance of aggregate ballasted single-ply membrane roof systems.
4.2 The aggregate size classifications provided in this classification are intended to provide a basis of compliance for contract documents’ that specify certain aggregate sizes for use on ballasted membrane systems.
SCOPE
1.1 This classification defines the aggregate size designations and ranges in mechanical analyses for standard sizes of aggregate used as ballast for membrane roof systems.
1.2 The text of this classification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.3 With regard to sieve sizes and the size of aggregate as determined by the use of testing sieves, the values in inch-pound units are shown for the convenience of the user; however, the standard sieve designations shown in parentheses is the standard value as stated in Specification E11.
1.4 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.
1.5 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.
1.6 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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Designation:D7655/D7655M −12 (Reapproved 2017)
Standard Classification for
Size of Aggregate Used as Ballast for Membrane Roof
1
Systems
This standard is issued under the fixed designation D7655/D7655M; 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 2. Referenced Documents
2
1.1 This classification defines the aggregate size designa- 2.1 ASTM Standards:
tions and ranges in mechanical analyses for standard sizes of C136/C136M Test Method for Sieve Analysis of Fine and
aggregate used as ballast for membrane roof systems. Coarse Aggregates
D75/D75M Practice for Sampling Aggregates
1.2 The text of this classification references notes and
D1079 Terminology Relating to Roofing and Waterproofing
footnotes which provide explanatory material. These notes and
E11 Specification for Woven Wire Test Sieve Cloth and Test
footnotes (excluding those in tables and figures) shall not be
Sieves
considered as requirements of the standard.
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2.2 ANSI/SPRI Standard:
1.3 With regard to sieve sizes and the size of aggregate as
RP-4 Wind Design Standard for Ballasted Single-ply Roof-
determined by the use of testing sieves, the values in inch-
ing Systems
pound units are shown for the convenience of the user;
however, the standard sieve designations shown in parentheses
3. Terminology
is the standard value as stated in Specification E11.
3.1 Definitions—For definitions of terms used in this
1.4 The values stated in either SI units or inch-pound units
specification, refer to Terminology D1079.
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each
4. Significance and Use
system shall be used independently of the other. Combining
4.1 Thewindresistanceofballastedmembraneroofsystems
values from the two systems may result in non-conformance
is determined largely by the size and weight of the ballasted
with the standard.
used.ANSI/SPRI RP-4 provides a method for the wind design
1.5 This standard does not purport to address all of the
of ballasted single-ply membrane roof systems and includes
safety concerns, if any, associated with its use. It is the
specific guidelines for the size and weight of aggregate used as
responsibility of the user of this standard to establish appro-
ballast. The aggregate size classifications provided in this
priate safety, health, and environmental practices and deter-
standard are intended for use with the guidelines provided
mine the applicability of regulatory limitations prior to use.
ANSI/SPRI RP-4 in designing the wind resistance of aggregate
1.6 This international standard was developed in accor-
ballasted single-ply membrane roof systems.
dance with internationally recognized principles on standard-
4.2 The aggregate size classifications provided in this clas-
ization established in the Decision on Principles for the
sification are intended to provide a basis of compliance for
Development of International Standards, Guides and Recom-
contract documents’that specify certain aggregate sizes for use
mendations issued by the World Trade Organization Technical
on ballasted membrane systems.
Barriers to Trade (TBT) Committee.
1 2
This classification is under the jurisdiction of ASTM Committee D08 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Roofing and Waterproofing and is the di
...
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: D7655/D7655M − 12 D7655/D7655M − 12 (Reapproved 2017)
Standard Classification for
Size of Aggregate Used as Ballast for Membrane Roof
1
Systems
This standard is issued under the fixed designation D7655/D7655M; 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 classification defines the aggregate size designations and ranges in mechanical analyses for standard sizes of aggregate
used as ballast for membrane roof systems.
1.2 The text of this classification references notes and footnotes which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the standard.
1.3 With regard to sieve sizes and the size of aggregate as determined by the use of testing sieves, the values in inch-pound units
are shown for the convenience of the user; however, the standard sieve designations shown in parentheses is the standard value
as stated in Specification E11.
1.4 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.
1.5 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.
1.5 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.
1.6 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:
C136C136/C136M Test Method for Sieve Analysis of Fine and Coarse Aggregates
D75D75/D75M Practice for Sampling Aggregates
D1079 Terminology Relating to Roofing and Waterproofing
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3
2.2 ANSI/SPRI Standard:
RP-4 Wind Design Standard for Ballasted Single-ply Roofing Systems
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, refer to Terminology D1079.
4. Significance and Use
4.1 The wind resistance of ballasted membrane roof systems is determined largely by the size and weight of the ballasted used.
ANSI/SPRI RP-4 provides a method for the wind design of ballasted single-ply membrane roof systems and includes specific
1
This classification is under the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.20 on Roofing
Membrane Systems.
Current edition approved Jan. 1, 2012Nov. 1, 2017. Published January 2012December 2017. DOI:10.1520/D7655_D7655M-12.Originally approved in 2012. Last previous
edition approved in 2012 as D7655/D7655M – 12. DOI:10.1520/D7655_D7655M-12R17.
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.
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D7655/D7655M − 12 (2017)
guidelines for the size and weight of aggregate used as ballast. The aggregate size classifications provided in this standard are
intended for use with the guidelines provided ANSI/SPRI RP-4 in designing the wind resistance of aggregate ballasted single-ply
membrane roof systems.
4.2 The aggregate size classifications provided in this classification are intended to provide a basis of compliance for contract
do
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