Standard Specification for Nonvulcanized (Uncured) Rubber Sheet Used as Roof Flashing

SCOPE
1.1 This specification covers nonvulcanized (uncured) rubber sheet made of EPDM (ethylene-propylene-diene terpolymer) or CR (polychloroprene) intended for use as watertight roof flashing exposed to the weather.
1.2 The tests and property limits used to characterize these flashing materials are specific for each classification and are minimum values to make the product fit for its intended purpose.
1.3 SI units shall be used in referee decisions.
1.4 In-place roof system design criteria, such as fire resistance, field seaming strength, material compatibility, and uplift resistance, among others, are beyond the scope of this specification.
1.5 The following precautionary caveat pertains to the test methods portion only, Section 8, of this specification:This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address the safety concerns 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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Publication Date
31-Dec-2003
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ASTM D4811-04 - Standard Specification for Nonvulcanized (Uncured) Rubber Sheet Used as Roof Flashing
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 4811 – 04
Standard Specification for
Nonvulcanized (Uncured) Rubber Sheet Used as Roof
1
Flashing
This standard is issued under the fixed designation D4811; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope D573 TestMethodsforRubber—DeteriorationinAirOven
D624 Test Method for Tear Strength of Conventional
1.1 This specification covers nonvulcanized (uncured) rub-
Vulcanized Rubber and Thermoplastic Elastomers
ber sheet made of EPDM (ethylene-propylene-diene terpoly-
D1079 Terminology Relating to Roofing, Waterproofing,
mer) or CR (polychloroprene) intended for use as watertight
and Bituminous Materials
roof flashing exposed to the weather.
D1149 Test Method for Rubber Deterioration—Surface
1.2 The tests and property limits used to characterize these
Ozone Cracking in a Chamber
flashing materials are specific for each classification and are
D1204 Test Method for Linear Dimensional Changes of
minimum values to make the product fit for its intended
Nonrigid Thermoplastic Sheeting or Film at Elevated
purpose.
Temperatures
1.3 SI units shall be used in referee decisions.
D 1418 Practice for Rubber and Rubber Latices—
1.4 In-place roof system design criteria, such as fire resis-
Nomenclature
tance, field seaming strength, material compatibility, and uplift
D2137 Test Methods for Rubber Property—Brittleness
resistance, among others, are beyond the scope of this speci-
Point of Flexible Polymers and Coated Fabrics
fication.
D3182 Practice for Rubber—Materials, Equipment, and
1.5 The following precautionary caveat pertains to the test
Procedures for Mixing Standard Compounds and Prepar-
methods portion only, Section 8, of this specification: This
ing Standard Vulcanized Sheets
standard may involve hazardous materials, operations, and
G151 Practice for Exposing Nonmetallic Materials in Ac-
equipment. This standard does not purport to address the
celerated Test Devices that Use Laboratory Light Sources
safety concerns associated with its use. It is the responsibility
G154 Practice for Operating Fluorescent Light Apparatus
of the user of this standard to establish appropriate safety and
for UV Exposure of Nonmetallic Materials
health practices and determine the applicability of regulatory
G155 Practice for Operating Xenon Arc Light Apparatus
limitations prior to use.
for Exposure of Non-Metallic Materials
2. Referenced Documents
3. Classification
2
2.1 ASTM Standards:
3.1 The following types are used to identify the principal
D412 Test Methods for Vulcanized Rubber and Thermo-
polymer components of the flashing material (see Note 1):
plastic Elastomers—Tension
3.1.1 Type I—Ethylene-Propylene-Diene Terpolymer
D471 Test Methods for Rubber Property—Effect of Liq-
(EPDM).
uids
3.1.2 Type II—Chloroprene Polymer (CR).
D518 Test Method for Rubber Deterioration—Surface
Cracking
NOTE 1—For definitions of polymer types, see Practice D1418. For
definitions of terms related to roofing, see Terminology D1079.
1
3.2 The following classes describe the ability to vulcanize
This specification is under the jurisdiction of ASTM Committee D08 on
RoofingandWaterproofingandisthedirectresponsibilityofSubcommitteeD08.18
on the roof:
on Nonbituminous Organic Roof Coverings.
3.2.1 Class V—Vulcanizing.
Current edition approved Jan. 1, 2004. Published January 2004. Originally
3.2.2 Class NV—Nonvulcanizing.
approved in 1990. Last previous edition approved in 1997 as D4811–97.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
NOTE 2—Class V compounds continue to vulcanize (that is, cure) after
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
emplacement on the roof. Class NV indicates non-vulcanizable com-
Standards volume information, refer to the standard’s Document Summary page on
pounds.
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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D4811–04
TABLE 2 Property Requirements for Flashing After Vulcanization
4. Materials and Manufacture
Type I, Type II,
4.1 The flashing material shall be formulated from the
Class V Class V
appropriate polymer type and other compounding ingredients.
Vulcanization, at 160°C (320°F), min 20 6220 6 2
The principal polymer in the flashing material shall be one of
Tensile Strength, min, MPa (psi) 9.0 (1305) 8.3 (1205)
those listed in 3.1 and greater than 95% of the total polymer.
Elongation, min, % 300 250
Tear Resistance, min, kN/m (lb/in.) 22 (125) 22 (125)
4.2 The flashing material shall be capable of being bonded
Britt
...

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