Standard Specification for Fiberglass Reinforced Styrene-Butadiene-Styrene (SBS) Modified Bituminous Sheet with a Factory Applied Metal Surface

SCOPE
1.1 This specification covers fiberglass reinforced modified bituminous sheet materials which use styrene-butadiene-styrene (SBS) thermoplastic elastomer as the primary modifier, and are surfaced with a factory applied continuous metal foil. These materials are intended for use in the fabrication of multiple ply roofing and waterproofing membranes and flashings.
1.2 This specification is intended as a material specification only. Questions regarding the suitability of the specific roof constructions or application techniques are beyond the scope of this specification.
1.3 The specified tests and property limits 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 specification.
1.4 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.
1.5 The following precautionary statement pertains to the test method portion only, Section 8 of this Specification: 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.

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09-Jul-2000
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ASTM D6298-00 - Standard Specification for Fiberglass Reinforced Styrene-Butadiene-Styrene (SBS) Modified Bituminous Sheet with a Factory Applied Metal Surface
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D 6298 – 00
Standard Specification for
Fiberglass Reinforced Styrene-Butadiene-Styrene (SBS)
Modified Bituminous Sheets with a Factory Applied Metal
Surface
This standard is issued under the fixed designation D 6298; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 Canadian General Standards Board Document:
Canadian General Standards Board, CGSB 37-GP-56M
1.1 This specification covers fiberglass reinforced modified
Standard For: Membrane, Modified, Bituminous, Prefab-
bituminous sheet materials which use styrene-butadiene-
ricated, and Reinforced for Roofing
styrene (SBS) thermoplastic elastomer as the primary modifier,
and are surfaced with a factory applied continuous metal foil.
3. Terminology
These materials are intended for use in the fabrication of
3.1 Definitions:
multiple ply roofing and waterproofing membranes and flash-
3.1.1 Fordefinitionsoftermsusedinthisspecification,refer
ings.
to Definitions D 1079.
1.2 This specification is intended as a material specification
only. Questions regarding the suitability of the specific roof
4. Materials and Manufacture
constructionsorapplicationtechniquesarebeyondthescopeof
4.1 In the process of manufacture, the fiberglass reinforce-
this specification.
ment is impregnated and coated on both sides with a SBS
1.3 The specified tests and property limits are intended to
modified bituminous coating. The sheet is surfaced with a
establish minimum properties. In place roof system design
continuous metal foil except for any selvage. The SBS modi-
criteria such as fire resistance, field strength, impact/puncture
fied bituminous coating shall be permitted to be compounded
resistance, material compatibility, uplift resistance, and others,
with a mineral stabilizer.
are factors beyond the scope of this specification.
4.2 The metal surfacing shall be omitted on any selvage. To
1.4 The values stated in SI units are to be regarded as the
prevent sticking in the roll, the reverse side and any selvage
standard. The inch-pound units given in parentheses are for
shall be permitted to be covered with a fine mineral surfacing
information only.
or any other surfacing that will not interfere with adhesion or
1.5 The following precautionary statement pertains to the
bonding of the lap during application.
test method portion only, Section 8 of this Specification: This
4.3 Foil-faced products intended for use where the applica-
standard does not purport to address all of the safety concerns,
tionistobebyheatwelding(torching)shallmeettheminimum
if any, associated with its use. It is the responsibility of the user
back surface coating requirement found in Table 1.
of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limita-
5. Physical Properties
tions prior to use.
5.1 The sheet material shall conform to the physical prop-
erties prescribed in Table 1.
2. Referenced Documents
5.2 The finished product shall not crack nor be so sticky as
2.1 ASTM Standards:
to cause other material damage upon being unrolled at product
D 1079 Terminology Relating to Roofing, Waterproofing,
2 temperatures between 4 and 60°C (40 and 140°F).
and Bituminous Materials
D 5147 Test Methods for Sampling and Testing Modified
6. Dimensions, Mass, and Permissible Variations
Bituminous Sheet Materials Used in Roofing and Water-
6.1 The width of the roll shall be as agreed between the
proofing
purchaser and the seller and shall not vary more than 61%.
6.2 The area of the roll shall not be less than as agreed upon
between the purchaser and seller.
This specification is under the jurisdiction of ASTM Committee D08 on
Roofing, Waterproofing and Bituminus Materials and is the direct responsibility of
Subcommittee D08.04 on Felts and Fabrics.
Current edition approved July 10, 2000. Published September 2000. Originally
published as D 6298 – 98. Last previous edition D 6298 – 98. Available from Canadian General Standards Board, 222 Queen Street, Suite
Annual Book of ASTM Standards, Vol 04.04. 1402, Ottawa, ON K1A1G6.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D 6298
TABLE 1 Properties of SBS Modified Bituminous Sheet Materials
8.2 Ultimate Elongation—Sample the material and deter-
Surfaced With a Factory Applied Metal Foil
mine the ultimate elongation at 23 6 2°C (73.4 6 3.6°F) in
Description
accordance with Section 6 of Test Method 5147, and as
Thickness, min 3.4 (134)
described herein. Ultimate elongation is defined as the elonga-
mm (mils)
tion measured on the load-elongation curve at which point the
load has dropped to 5 % of its maximum value.
Net Mass per Unit 3.9 (80)
2 2
Area, min kg/m (lb/100 ft ) 8.3 Sample the material and determine the cyclic thermal
shock stability according to CGSB (Canadian Generals Stan-
Back Surface Coating Thickness 1 (40)
dards Board) 37-GP-56M with the following exceptions.
min, mm (mils)
8.3.1 Sampling and Test Specimens:
Maximum Load 0°F 28.0 (160)
8.3.1.1 This test consists of exposing two specimens of
min. value
2000 65by90 65mm(79.0 60.2by3.5 60.2in.)tocyclic
kN/m (lbf/in.) 73°F 14.9 (85)
variations of temperature produced by infrared radiation. The
Elongation at 0°F . . . 3
variation in dimension is measured in relation to the number of
Maximum Load
cycles and temperature variation.
min value % 73°F . .
...

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