ASTM D6298/D6298M-16

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D6298/D6298M − 16
Standard Specification for
Fiberglass Reinforced Styrene-Butadiene-Styrene (SBS)
Modified Bituminous Sheets with a Factory Applied Metal
1
Surface
This standard is issued under the fixed designation D6298/D6298M; 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 specification covers fiberglass reinforced modified 2.1 ASTM Standards:
bituminous sheet materials that use styrene-butadiene-styrene D1079 Terminology Relating to Roofing and Waterproofing
(SBS) thermoplastic elastomer as the primary modifier and are D5147/D5147M Test Methods for Sampling and Testing
surfaced with a factory applied continuous metal foil. These Modified Bituminous Sheet Material
materials are intended for use in the fabrication of multiple ply D7051 Test Method for Cyclic Thermal Shock of SBS-
roofing and waterproofing membranes and flashings. Modified Bituminous Roofing Sheets with Factory-
Applied Metal Surface
1.2 This specification is intended as a material specification
only. Questions regarding the suitability of the specific roof
3. Terminology
constructions or application techniques are beyond the scope of
3.1 Definitions—For definitions of terms used in this
this specification.
specification, refer to Terminology D1079.
1.3 The specified tests and property limits are intended to
establish minimum properties. In place roof system design
4. Materials and Manufacture
criteria such as fire resistance, field strength, impact/puncture
4.1 In the process of manufacture, the fiberglass reinforce-
resistance, material compatibility, uplift resistance, and others,
ment is impregnated and coated on both sides with a SBS
are factors beyond the scope of this specification.
modified bituminous coating. The sheet is surfaced with a
1.4 The values stated in either SI units or inch-pound units
continuous metal foil except for any selvage. The SBS modi-
are to be regarded separately as standard. The values stated in
fied bituminous coating shall be permitted to be compounded
each system may not be exact equivalents; therefore, each
with a mineral stabilizer.
system shall be used independently of the other. Combining
4.2 The metal surfacing shall be omitted on any selvage. To
values from the two systems may result in non-conformance
prevent sticking in the roll, the reverse side and any selvage
with the standard.
shall be permitted to be covered with a fine mineral surfacing
1.5 The following precautionary statement pertains to the
or any other surfacing that will not interfere with adhesion or
test method portion only, Section 8 of this Specification: This
bonding of the lap during application.
standard does not purport to address all of the safety concerns,
4.3 Foil-faced products intended for use where the applica-
if any, associated with its use. It is the responsibility of the user
tion is to be by heat welding (torching) shall meet the minimum
of this standard to establish appropriate safety and health
back surface coating requirement found in Table 1.
practices and determine the applicability of regulatory limita-
tions prior to use.
5. Physical Properties
5.1 The sheet material shall conform to the physical prop-
erties prescribed in Table 1.
5.2 The finished product shall not crack nor be so sticky as
to cause other material damage upon being unrolled at product
temperatures between 4 and 60°C [40 and 140°F].
1
This specification is under the jurisdiction of ASTM Committee D08 on
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.04
2
on Felts, Fabrics and Bituminous Sheet Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2016. Published November 2016. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1998. Last previous edition approved in 2013 as D6298 – 13. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D6298_D2698M-16. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6298/D6298M − 16
TABLE 1 Properties of SBS Modified Bituminous Sheet Materials
7.3 The line of demarcation between the metal-surfaced
Surfaced With a Factory Applied Metal Foil
portion of the weather side and any selvage shall be straight
Description
and parallel to the edge of the sheet.
Thickness, min, 3.4 [134]
mm [mils] 7.4 When unrolled on a smooth plane
...