ASTM D6163/D6163M-21
(Specification)Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
ABSTRACT
This specification covers Grades G (granule surfaced) and S (smooth surfaced) prefabricated bituminous sheet materials with glass fiber reinforcement that has been modified by styrene butadiene styrene (SBS) thermoplastic elastomer, and are intended for use in the fabrication of multiple ply roofing and waterproofing membranes. This specification is intended as a material specification only, and does not address issues regarding the suitability of the specific roof constructions or application techniques. The specified tests and property limits used to characterize the sheet materials are intended to establish minimum properties, Hence, roof system design criteria such as fire resistance, field strength, impact/puncture resistance, material compatibility, uplift resistance, and others are factors beyond its scope. Material properties for which the sheet materials should adhere to are peak load before and after heat conditioning, elongation at peak load, ultimate elongation, tear strength, low temperature flexibility, dimensional stability, compound stability at specified temperatures, and granule embedment.
SCOPE
1.1 This specification covers prefabricated modified bituminous sheet materials with glass fiber reinforcement, with or without granules, that 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.
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-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
- Effective Date
- 01-Jun-2007
Overview
ASTM D6163/D6163M-21 is the standard specification developed by ASTM for Styrene Butadiene Styrene (SBS) modified bituminous sheet materials that use glass fiber reinforcements. This specification defines two grades of prefabricated sheet materials - Grade G (granule surfaced) and Grade S (smooth surfaced) - designed specifically for use in multi-ply roofing and waterproofing membranes. The standard outlines the minimum material properties to ensure quality and consistency, covering manufacturing details, physical properties, and packaging requirements. It does not address roof system design, installation methods, or performance criteria such as fire resistance or impact resistance.
Key Topics
Material Grades & Types
- Grade G: Granule surfaced for enhanced weather protection
- Grade S: Smooth surfaced for various applications
- Types: Type I, Type II, and Type III, based on performance characteristics
Glass Fiber Reinforcement
- Ensures dimensional stability and enhanced mechanical strength
SBS Modification
- Incorporates styrene butadiene styrene thermoplastic elastomer
- Improves flexibility, durability, and weather resistance
Physical Property Requirements
- Minimum peak load (before and after heat conditioning)
- Elongation at peak load
- Ultimate elongation, tear strength, and low temperature flexibility
- Dimensional and compound stability
- Granule embedment for granule-surfaced materials
Manufacturing & Quality
- Impregnation and coating of glass fiber reinforcement
- Use of mineral stabilizers permitted
- Uniform surfacing and consistent finish
- Rolls must be free of visual defects and packed securely
Applications
ASTM D6163/D6163M-21 is primarily used in the construction and maintenance of multi-ply roofing and waterproofing membranes. Its SBS modified bituminous sheets with glass fiber reinforcement are ideal for:
- Low-slope commercial roofing systems
- Above-grade or below-grade waterproofing applications
- Roof recover and retrofit systems
- Cold climates requiring low-temperature flexibility
- Waterproofing solutions in residential and industrial settings
Manufacturers, roofing contractors, architects, and specifiers rely on this specification for material compliance in procurement, quality assurance, and project specifications, ensuring the durability and integrity of built-up roofing systems.
Related Standards
Professionals referencing ASTM D6163/D6163M-21 should also consider the following relevant ASTM standards:
- ASTM D1079: Terminology Relating to Roofing and Waterproofing
- ASTM D5147/D5147M: Test Methods for Sampling and Testing Modified Bituminous Sheet Material
For broader context or additional guidance on multi-ply roofing material specifications and test methodologies, these companion standards help ensure consistent terminology and test procedures.
Keywords: SBS modified bitumen, glass fiber reinforcement, bituminous sheet materials, ASTM D6163/D6163M-21, roofing membranes, waterproofing, granule surfaced, smooth surfaced, roofing standards, physical properties, bituminous roofing material, construction standards
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Frequently Asked Questions
ASTM D6163/D6163M-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 Glass Fiber Reinforcements". This standard covers: ABSTRACT This specification covers Grades G (granule surfaced) and S (smooth surfaced) prefabricated bituminous sheet materials with glass fiber reinforcement that has been modified by styrene butadiene styrene (SBS) thermoplastic elastomer, and are intended for use in the fabrication of multiple ply roofing and waterproofing membranes. This specification is intended as a material specification only, and does not address issues regarding the suitability of the specific roof constructions or application techniques. The specified tests and property limits used to characterize the sheet materials are intended to establish minimum properties, Hence, roof system design criteria such as fire resistance, field strength, impact/puncture resistance, material compatibility, uplift resistance, and others are factors beyond its scope. Material properties for which the sheet materials should adhere to are peak load before and after heat conditioning, elongation at peak load, ultimate elongation, tear strength, low temperature flexibility, dimensional stability, compound stability at specified temperatures, and granule embedment. SCOPE 1.1 This specification covers prefabricated modified bituminous sheet materials with glass fiber reinforcement, with or without granules, that 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. 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 with glass fiber reinforcement that has been modified by styrene butadiene styrene (SBS) thermoplastic elastomer, and are intended for use in the fabrication of multiple ply roofing and waterproofing membranes. This specification is intended as a material specification only, and does not address issues regarding the suitability of the specific roof constructions or application techniques. The specified tests and property limits used to characterize the sheet materials are intended to establish minimum properties, Hence, roof system design criteria such as fire resistance, field strength, impact/puncture resistance, material compatibility, uplift resistance, and others are factors beyond its scope. Material properties for which the sheet materials should adhere to are peak load before and after heat conditioning, elongation at peak load, ultimate elongation, tear strength, low temperature flexibility, dimensional stability, compound stability at specified temperatures, and granule embedment. SCOPE 1.1 This specification covers prefabricated modified bituminous sheet materials with glass fiber reinforcement, with or without granules, that 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. 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 D6163/D6163M-21 is classified under the following ICS (International Classification for Standards) categories: 91.100.50 - Binders. Sealing materials. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM D6163/D6163M-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 D5147/D5147M-14, ASTM D1079-13e1, ASTM D1079-13, ASTM D5147/D5147M-11a, ASTM D5147/D5147M-11, ASTM D1079-10, ASTM D1079-09, ASTM D1079-08a, ASTM D1079-08, ASTM D1079-07a. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM D6163/D6163M-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:D6163/D6163M −21
Standard Specification for
Styrene Butadiene Styrene (SBS) Modified Bituminous
Sheet Materials Using Glass Fiber Reinforcements
This standard is issued under the fixed designation D6163/D6163M; 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 D5147/D5147M Test Methods for Sampling and Testing
Modified Bituminous Sheet Material
1.1 This specification covers prefabricated modified bitumi-
nous sheet materials with glass fiber reinforcement, with or
3. Terminology
without granules, that use styrene butadiene styrene (SBS)
3.1 Definitions—For definitions of terms used in this
thermoplastic elastomer as the primary modifier and are
specification, refer to Terminology D1079.
intended for use in the fabrication of multiple ply roofing and
waterproofing membranes.
4. Classifications
1.2 This specification is intended as a material specification
4.1 Modified bituminous sheet materials reinforced with
only. Issues regarding the suitability of the specific roof
glass fiber, Type I, Type II, and Type III are covered by this
constructions or application techniques are beyond this scope.
specification.
1.3 The specified tests and property limits used to charac-
4.2 The following grades are used to describe the material
terize the sheet materials are intended to establish minimum
surfacing:
properties. In-place roof system design criteria, such as fire
4.2.1 Grade G—Granule surfaced.
resistance, field strength, impact/puncture resistance, material
4.2.2 Grade S—Smooth surfaced.
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
impregnated and coated on both sides with an SBS-modified
are to be regarded separately as standard. The values stated in
bituminous coating. The SBS-modified bituminous coating
each system may not be exact equivalents; therefore, each
shall be permitted to be compounded with a mineral stabilizer.
system shall be used independently of the other. Combining
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. mineral granules, except for any selvage.To prevent sticking in
the roll, the reverse side and any selvage shall be permitted to
1.5 This international standard was developed in accor-
be covered with a fine mineral surfacing or any other surfacing
dance with internationally recognized principles on standard-
that will not interfere with adhesion or bonding of the lap
ization established in the Decision on Principles for the
during application.
Development of International Standards, Guides and Recom-
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.
2. Referenced Documents
6. Physical Properties
2.1 ASTM Standards:
D1079 Terminology Relating to Roofing and Waterproofing 6.1 The sheet shall conform to the minimum physical
properties prescribed in Table 2.
This specification is under the jurisdiction of ASTM Committee D08 on
6.2 The finished product shall not crack nor be so sticky as
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.04
to cause tearing or other material damage upon being unrolled
on Felts, Fabrics and Bituminous Sheet Materials.
at any product temperature between 4 and 60 °C [40 and
Current edition approved Dec. 1, 2021. Published December 2021. Originally
approved in 1997. Last previous edition approved in 2016 as D6163/D6163M – 16. 140 °F].
DOI: 10.1520/D6163_D6163M-21.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 7. Dimensions, Mass, and Permissible Variations
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.1 The finished product shall conform to the following
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. dimensions and variations:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D6163/D6163M−21
TABLE 1 Dimensions and Masses of SBS-Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
Description Type I Type II Type III
Thickness, min, mm [mils],
Grade S 2.0 [80] 2.0 [80] 2.0 [80]
Grade G 2.4 [95] 2.7 [105] 3.0 [120]
2 2
Net mass/unit area, min, g/m [lbs/100 ft ]
Grade S 2197 [45] 2197 [45] 2197 [45]
Grade G 3173 [65] 3661 [75] 3661 [75]
Bottom coating thickness, heat welding application
products, min, mm [mils]
Grade S 1.0 [40] 1.0 [40] 1.0 [40]
Grade G 1.0 [40] 1.0 [40] 1.0 [40]
A
TABLE 2 Physical Properties of SBS-Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
Type I Type II Type III
Property
Grade: G and S Grade: G and S Grade: G and S
Peak load at –18 ± 2 °C [0 ± 3.6 °F], MD and XMD, before and after heat 12.3 [70] 26.25 [150] 32 [180]
conditioning, min, kN/m [lbf/in.]
Elongation at –18 ± 2 °C [0 ± 3.6 °F], MD and XMD, at peak loa
...
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: D6163/D6163M − 16 D6163/D6163M − 21
Standard Specification for
Styrene Butadiene Styrene (SBS) Modified Bituminous
Sheet Materials Using Glass Fiber Reinforcements
This standard is issued under the fixed designation D6163/D6163M; 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 with glass fiber reinforcement, with or without
granules, that 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.
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
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, refer to Terminology D1079.
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 20152016
ɛ1
as D6163/D6163M – 00 (2015)D6163/D6163M – 16. . DOI: 10.1520/D6163_D6163M-16.10.1520/D6163_D6163M-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
D6163/D6163M − 21
4. Classifications
4.1 Modified bituminous sheet materials reinforced with glass fiber, Type I, Type II, and Type III are covered by this specification.
4.2 The following grades are used to describe the material surfacing:
4.2.1 Grade G—Granule surfaced.
4.2.2 Grade S—Smooth surfaced.
5. Material and Manufacture
5.1 In the process of manufacture, the reinforcement 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.
7.1.3 The selvage width shall be within 6.4 mm [ ⁄4 in.] of the nominal selvage width and shall be not less than 76.2 mm [3 in.]
in width without a laying line and 63.5 mm [2.5 in.] in width if the sheet has a laying line. If a laying line is provided, the line
must not be less than 76.2 mm [3 in.] from the edge of the sheet.
TABLE 1 Dimensions and Masses of SBS Modified SBS-Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements
Description TypeType I Type Type II TypeType III
Thickness, min, mm [mils],
Grade S 2.0 [80] 2.0 [80] 2.0 [80]
Grade S 2.0 [80] 2.0 [80] 2.0 [80]
Grade G 2.4 [95] 2.7 [105] 3.0 [120]
2 2
Net mass/unit area, min, g/m [lbs/100 ft ]
Grade S 2197 [45] 2197 [45] 2197 [45]
Grade S 2197 [45] 2197 [45] 2197 [45]
Grade G 3173 [65] 3661 [75] 3661 [75]
Grade G 3173 [65] 3661 [75] 3661 [75]
Bottom coating thickness, heat welding application
products, min, mm [mils]
Grade S 1.0 [40] 1.0 [40] 1.0 [40]
Grade S 1.0 [40] 1.0 [40] 1.0 [40]
Grade G 1.0 [40] 1.0 [40] 1.0 [40]
Grade G 1.0 [40] 1.0 [40] 1.0 [40]
D6163/D6163M − 21
A
TABLE 2 Physical Properties of SBS Modified SBS-Mo
...
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