ASTM D6164/D6164M-21
(Specification)Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements
Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements
ABSTRACT
This specification covers Grades G (granule surfaced) and S (smooth surfaced) prefabricated bituminous sheet materials reinforced with polyester fabric and modified by styrene butadiene styrene (SBS) thermoplastic elastomer, intended for use in the fabrication of multiple ply roofing and waterproofing membranes. The sheet materials shall meet dimensional requirements such as thickness and net mass per unit area, as well as physical requirements such as peak load before and after heat conditioning, elongation at peak load, ultimate elongation, tear strength, low temperature flexibility, dimensional stability, compound stability, and granule embedment.
SCOPE
1.1 This specification covers prefabricated modified bituminous sheet materials reinforced with polyester fabric as the primary reinforcement (see Note 1), with or without granules, which use styrene butadiene styrene (SBS) thermoplastic elastomer as the primary modifier and are intended for use in the fabrication of multiple ply roofing and waterproofing membranes.
Note 1: Many modified bituminous sheets are currently marketed with polyester mat reinforced with glass yarns to improve processing in the manufacture of the finished modified bitumen product and to reduce distortions that may be introduced during production. These glass yarns are typically a small percentage of the reinforcement and do not contribute to the physical properties of the finished product so much as to make these products be classified by Specification D6162/D6162M.
1.2 This specification is intended as a material specification only. Issues regarding the suitability of the specific roof constructions or application techniques are beyond this scope.
1.3 The specified tests and property limits used to characterize the sheet materials are intended to establish minimum properties. In-place roof system design criteria, such as fire resistance, field strength, impact/puncture resistance, material compatibility, uplift resistance, and others, are factors beyond the scope of this material specification.
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 nonconformance with the standard.
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.
General Information
- Status
- Published
- Publication Date
- 30-Nov-2021
- Technical Committee
- D08 - Roofing and Waterproofing
- Drafting Committee
- D08.04 - Felts, Fabrics and Bituminous Sheet Materials
Relations
- Effective Date
- 01-May-2020
- Effective Date
- 15-Dec-2018
- Effective Date
- 15-Dec-2018
- Effective Date
- 01-Jul-2018
- Effective Date
- 01-Feb-2016
- Effective Date
- 01-Jan-2015
- Effective Date
- 01-Jan-2014
- Effective Date
- 01-Mar-2013
- Effective Date
- 01-Mar-2013
- Effective Date
- 01-May-2011
- Effective Date
- 01-Jan-2011
- Effective Date
- 01-Sep-2010
- Effective Date
- 01-Jul-2009
- Effective Date
- 01-Feb-2008
- Effective Date
- 01-Jan-2008
Overview
ASTM D6164/D6164M-21 is the standard specification developed by ASTM International for Styrene Butadiene Styrene (SBS) modified bituminous sheet materials using polyester reinforcements. This standard outlines requirements for Grades G (granule surfaced) and S (smooth surfaced) prefabricated bituminous sheet membranes. These materials are primarily used in the construction of multiple ply roofing and waterproofing systems.
The specification establishes minimum requirements for physical properties, dimensions, mass, and performance that ensure SBS-modified bituminous sheets with polyester reinforcement perform reliably as roofing and waterproofing membranes. The standard is recognized as an important reference for manufacturers, designers, contractors, and quality assurance professionals in the construction and building envelope industries.
Key Topics
Material Composition and Grades
- Polyester fabric serves as the primary reinforcement, optionally including small quantities of glass yarns for manufacturing purposes.
- Sheets are modified with SBS thermoplastic elastomer to enhance elasticity, durability, and flexibility.
- Available in two grades:
- Grade G: Granule surfaced for added weather resistance.
- Grade S: Smooth surfaced for applications where surfacing is applied on-site or not required.
Physical and Dimensional Requirements
- Sheets must meet specific requirements for thickness and net mass per unit area.
- Must achieve defined levels for physical properties such as:
- Peak load (before and after heat conditioning)
- Elongation at peak load and ultimate elongation
- Tear strength
- Low temperature flexibility
- Dimensional stability
- Compound stability at elevated temperatures
- Granule embedment (Grade G only)
- Manufactured sheets must be free from defects such as cracks, blisters, or untrue edges and exhibit proper surface uniformity.
Testing and Inspection
- Material is sampled and tested according to ASTM D5147/D5147M, ensuring evaluation against consistent standards.
- Products failing to meet standards are subject to rejection, with clearly defined procedures for resubmittal and replacement.
Packaging and Marking
- Rolls must be packaged securely to prevent damage and allow safe handling.
- Each roll must be clearly marked with supplier, product, “SBS” indication, ASTM designation, type, grade, and net coverage.
Applications
ASTM D6164/D6164M-21 materials are widely used in:
- Multiple ply roofing systems: Providing robust, flexible, and durable waterproofing membranes for commercial, industrial, and residential buildings.
- Below-grade waterproofing: Supporting waterproofing of foundations, tunnels, and underground structures.
- Protected roof assemblies: Suitable for both exposed and protected membrane applications, such as green roofs and inverted roofs.
- Recover roofing: Used as overlays for existing roofs to extend service life and improve performance.
The enhanced performance characteristics of SBS-modified polyester-reinforced bituminous membranes offer high levels of elongation, weather resistance, and durability under varying temperature conditions, making them a preferred choice for challenging construction environments.
Related Standards
- ASTM D5147/D5147M: Standard test methods for sampling and testing properties of modified bituminous sheet material.
- ASTM D1079: Terminology relating to roofing and waterproofing.
- ASTM D6162/D6162M: Specification for SBS-modified bituminous sheet materials using a combination of polyester and glass fiber reinforcements.
Practical Value
By adhering to ASTM D6164/D6164M-21, manufacturers, designers, and installers ensure the consistent quality, safety, and reliability of SBS-modified bituminous sheet materials. This standard provides a reliable benchmark for product performance in diverse climatic and structural conditions, supporting best practices in roofing and waterproofing applications.
Keywords: SBS modified bituminous sheet, polyester reinforcements, waterproofing membrane, roofing membrane, ASTM D6164, standard specification
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Frequently Asked Questions
ASTM D6164/D6164M-21 is a technical specification published by ASTM International. Its full title is "Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements". This standard covers: ABSTRACT This specification covers Grades G (granule surfaced) and S (smooth surfaced) prefabricated bituminous sheet materials reinforced with polyester fabric and modified by styrene butadiene styrene (SBS) thermoplastic elastomer, intended for use in the fabrication of multiple ply roofing and waterproofing membranes. The sheet materials shall meet dimensional requirements such as thickness and net mass per unit area, as well as physical requirements such as peak load before and after heat conditioning, elongation at peak load, ultimate elongation, tear strength, low temperature flexibility, dimensional stability, compound stability, and granule embedment. SCOPE 1.1 This specification covers prefabricated modified bituminous sheet materials reinforced with polyester fabric as the primary reinforcement (see Note 1), with or without granules, which use styrene butadiene styrene (SBS) thermoplastic elastomer as the primary modifier and are intended for use in the fabrication of multiple ply roofing and waterproofing membranes. Note 1: Many modified bituminous sheets are currently marketed with polyester mat reinforced with glass yarns to improve processing in the manufacture of the finished modified bitumen product and to reduce distortions that may be introduced during production. These glass yarns are typically a small percentage of the reinforcement and do not contribute to the physical properties of the finished product so much as to make these products be classified by Specification D6162/D6162M. 1.2 This specification is intended as a material specification only. Issues regarding the suitability of the specific roof constructions or application techniques are beyond this scope. 1.3 The specified tests and property limits used to characterize the sheet materials are intended to establish minimum properties. In-place roof system design criteria, such as fire resistance, field strength, impact/puncture resistance, material compatibility, uplift resistance, and others, are factors beyond the scope of this material specification. 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 nonconformance with the standard. 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.
ABSTRACT This specification covers Grades G (granule surfaced) and S (smooth surfaced) prefabricated bituminous sheet materials reinforced with polyester fabric and modified by styrene butadiene styrene (SBS) thermoplastic elastomer, intended for use in the fabrication of multiple ply roofing and waterproofing membranes. The sheet materials shall meet dimensional requirements such as thickness and net mass per unit area, as well as physical requirements such as peak load before and after heat conditioning, elongation at peak load, ultimate elongation, tear strength, low temperature flexibility, dimensional stability, compound stability, and granule embedment. SCOPE 1.1 This specification covers prefabricated modified bituminous sheet materials reinforced with polyester fabric as the primary reinforcement (see Note 1), with or without granules, which use styrene butadiene styrene (SBS) thermoplastic elastomer as the primary modifier and are intended for use in the fabrication of multiple ply roofing and waterproofing membranes. Note 1: Many modified bituminous sheets are currently marketed with polyester mat reinforced with glass yarns to improve processing in the manufacture of the finished modified bitumen product and to reduce distortions that may be introduced during production. These glass yarns are typically a small percentage of the reinforcement and do not contribute to the physical properties of the finished product so much as to make these products be classified by Specification D6162/D6162M. 1.2 This specification is intended as a material specification only. Issues regarding the suitability of the specific roof constructions or application techniques are beyond this scope. 1.3 The specified tests and property limits used to characterize the sheet materials are intended to establish minimum properties. In-place roof system design criteria, such as fire resistance, field strength, impact/puncture resistance, material compatibility, uplift resistance, and others, are factors beyond the scope of this material specification. 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 nonconformance with the standard. 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.
ASTM D6164/D6164M-21 has the following relationships with other standards: It is inter standard links to ASTM D1079-20, ASTM D1079-18, ASTM D1079-18e1, ASTM D5147/D5147M-18, ASTM D1079-16, ASTM D6162/D6162M-00A(2015)e1, ASTM D5147/D5147M-14, ASTM D1079-13, ASTM D1079-13e1, ASTM D5147/D5147M-11a, ASTM D5147/D5147M-11, ASTM D1079-10, ASTM D1079-09, ASTM D1079-08a, ASTM D1079-08. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM D6164/D6164M-21 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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: D6164/D6164M −21
Standard Specification for
Styrene Butadiene Styrene (SBS) Modified Bituminous
Sheet Materials Using Polyester Reinforcements
This standard is issued under the fixed designation D6164/D6164M; 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
1.1 This specification covers prefabricated modified bitumi- 2.1 ASTM Standards:
nous sheet materials reinforced with polyester fabric as the D1079 Terminology Relating to Roofing and Waterproofing
primary reinforcement (see Note 1), with or without granules, D5147/D5147M Test Methods for Sampling and Testing
which use styrene butadiene styrene (SBS) thermoplastic Modified Bituminous Sheet Material
elastomer as the primary modifier and are intended for use in D6162/D6162M Specification for Styrene Butadiene Sty-
the fabrication of multiple ply roofing and waterproofing rene (SBS) Modified Bituminous Sheet Materials Using a
membranes. Combination of Polyester and Glass Fiber Reinforcements
NOTE1—Manymodifiedbituminoussheetsarecurrentlymarketedwith
3. Terminology
polyester mat reinforced with glass yarns to improve processing in the
manufacture of the finished modified bitumen product and to reduce
3.1 Definitions—For definitions of terms used in this
distortions that may be introduced during production. These glass yarns
specification, refer to Terminology D1079.
are typically a small percentage of the reinforcement and do not contribute
to the physical properties of the finished product so much as to make these
4. Classification
products be classified by Specification D6162/D6162M.
4.1 Modified bituminous sheet materials reinforced with
1.2 This specification is intended as a material specification
polyester fabric, Type I and Type II, are covered by this
only. Issues regarding the suitability of the specific roof
specification.
constructions or application techniques are beyond this scope.
4.2 The following grades are used to describe the material
1.3 The specified tests and property limits used to charac-
surfacing:
terize the sheet materials are intended to establish minimum
4.2.1 Grade G—Granule surfaced.
properties. In-place roof system design criteria, such as fire
4.2.2 Grade S—Smooth surfaced.
resistance, field strength, impact/puncture resistance, material
compatibility, uplift resistance, and others, are factors beyond
5. Material and Manufacture
the scope of this material specification.
5.1 In the process of manufacture, the reinforcement is
1.4 The values stated in either SI units or inch-pound units
saturated with asphalt or modified asphalt and is impregnated
are to be regarded separately as standard. The values stated in
and coated on both sides with an SBS-modified bituminous
each system may not be exact equivalents; therefore, each
coating. The SBS-modified bituminous coating shall be per-
system shall be used independently of the other. Combining
mitted to be compounded with a mineral stabilizer.
values from the two systems may result in nonconformance
5.2 The Grade G sheet is surfaced on the weather side with
with the standard.
mineralgranules,exceptforanyselvage.Topreventstickingin
1.5 This international standard was developed in accor-
the roll, the reverse side and any selvage shall be permitted to
dance with internationally recognized principles on standard-
be covered with a fine mineral surfacing or any other surfacing
ization established in the Decision on Principles for the
that will not interfere with adhesion or bonding of the lap
Development of International Standards, Guides and Recom-
during application.
mendations issued by the World Trade Organization Technical
5.3 Sheet material intended for application by heat welding
Barriers to Trade (TBT) Committee.
(torching) shall meet the minimum bottom coating requirement
found in Table 1.
This specification is under the jurisdiction of ASTM Committee D08 on
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.04
on Felts, Fabrics and Bituminous Sheet Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Dec. 1, 2021. Published December 2021. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1997. Last previous edition approved in 2016 as D6164/D6164M – 16. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/D6164_D6164M-21. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D6164/D6164M − 21
TABLE 1 Dimensions and Masses of SBS-Modified Bituminous
7.1.2 The area of the roll shall be no less than as agreed
Sheet Materials Using Polyester Reinforcements
between the purchaser and the seller.
Description Type I Type II 1
7.1.3 The selvage width shall be within 6.4 mm [ ⁄4 in.] of
Thickness, min, mm [mils],
the nominal selvage width and shall be not less than 76.2 mm
Grade S 2.2 [85] 2.9 [115]
[3 in.] in width without a laying line and 63.5 mm [2.5 in.] in
Grade G 3.3 [130] 3.3 [130]
width if the sheet has a laying line. If a laying line is provided,
2 2
Net mass/unit area, min, g/m [lbs/100 ft ]
the line must not be less than 76.2 mm [3 in.] from the edge of
Grade S 2636 [54] 3417 [70]
the sheet.
Grade G 3661 [75] 4394 [90]
7.2 The mass and thickness of the finished product shall be
Bottom coating thickness, heat welding
as prescr
...
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: D6164/D6164M − 16 D6164/D6164M − 21
Standard Specification for
Styrene Butadiene Styrene (SBS) Modified Bituminous
Sheet Materials Using Polyester Reinforcements
This standard is issued under the fixed designation D6164/D6164M; 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 specification covers prefabricated modified bituminous sheet materials reinforced with polyester fabric as the primary
reinforcement,reinforcement (see Note 1)), with or without granules, which use styrene butadiene styrene (SBS) thermoplastic
elastomer as the primary modifier and are intended for use in the fabrication of multiple ply roofing and waterproofing membranes.
NOTE 1—Many modified bituminous sheets are currently marketed with polyester mat reinforced with glass yarns to improve processing in the
manufacture of the finished modified bitumen product and to reduce distortions that may be introduced during production. These glass yarns are typically
a small percentage of the reinforcement and do not contribute to the physical properties of the finished product so much as to make these products be
classified by Specification D6162/D6162M.
1.2 This specification is intended as a material specification only. Issues regarding the suitability of the specific roof constructions
or application techniques are beyond this scope.
1.3 The specified tests and property limits used to characterize the sheet materials are intended to establish minimum properties.
In-place roof system design criteria, such as fire resistance, field strength, impact/puncture resistance, material compatibility, uplift
resistance, and others, are factors beyond the scope of this material specification.
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-conformancenonconformance with the standard.
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.
2. Referenced Documents
2.1 ASTM Standards:
D1079 Terminology Relating to Roofing and Waterproofing
D5147/D5147M Test Methods for Sampling and Testing Modified Bituminous Sheet Material
D6162/D6162M Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using a Combination
of Polyester and Glass Fiber Reinforcements
This specification is under the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.04 on Felts,
Fabrics and Bituminous Sheet Materials.
Current edition approved Nov. 1, 2016Dec. 1, 2021. Published November 2016December 2021. Originally approved in 1997. Last previous edition approved in 20112016
as D6164/D6164M – 11.D6164/D6164M – 16. DOI: 10.1520/D6164_D6164M-16.10.1520/D6164_D6164M-21.
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
D6164/D6164M − 21
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, refer to Terminology D1079.
4. Classification
4.1 Modified bituminous sheet materials reinforced with polyester fabric, Type I and Type II, are covered by this specification.
4.2 The following grades are used to describe the material surfacing:
4.2.1 Grade G—Granule Surfaced.surfaced.
4.2.2 Grade S—Smooth Surfaced.surfaced.
5. Material and Manufacture
5.1 In the process of manufacture, the reinforcement is saturated with asphalt or modified asphalt and is impregnated and coated
on both sides with an SBS modified SBS-modified bituminous coating. The SBS modified SBS-modified bituminous coating shall
be permitted to be compounded with a mineral stabilizer.
5.2 The Grade G sheet is surfaced on the weather side with mineral granules, except for any selvage. To prevent sticking in the
roll, the reverse side and any selvage shall be permitted to be covered with a fine mineral surfacing or any other surfacing that will
not interfere with adhesion or bonding of the lap during application.
5.3 Sheet material intended for application by heat welding (torching) shall meet the minimum bottom coating requirement found
in Table 1.
6. Physical Properties
6.1 The sheet shall conform to the minimum physical properties prescribed in Table 2.
6.2 The finished product shall not crack nor be so sticky as to cause tearing or other material damage upon being unrolled at any
product temperature between 4 and 60°C60 °C [40 and 140°F].140 °F].
7. Dimensions, Mass, and Permissible Variations
7.1 The finished product shall conform to the following dimensions and variations:
7.1.1 The width of the roll shall be as agreed between the purchaser and the seller and shall not vary more than 1 %.
7.1.2 The area of the roll shall be no less than as agreed between the purchaser and the seller.
TABLE 1 Dimensions and Masses of SBS Modified SBS-Modified
Bituminous Sheet Materials Using Polyester Reinforcements
Description Type I Type II
Thickness, min, mm [mils],
Grade S 2.2 [85] 2.9 [115]
Grade G 3.3 [130] 3.3 [130]
2 2
Net mass/unit area, min, g/m [lbs/100 ft ]
Grade S 2636 [54] 3417 [70]
Grade G 3661 [75] 4394 [90]
Bottom coating thickness, heat welding
application products, min, mm [mils]
Grade S 1.0 [40] 1.0 [40]
Grade G 1.0 [40] 1.0 [40]
D6164/D6164M − 21
TABLE 2 Physical Properties of SBS Modified SBS-Modified
A
Bituminous Sheet
...
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