iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
ASTM

ASTM D4811-97

(Specification)

Standard Specification for Nonvulcanized Rubber Sheet Used as Roof Flashing

Standard Specification for Nonvulcanized Rubber Sheet Used as Roof Flashing

SCOPE
1.1 This specification covers nonvulcanized rubber sheet made of EPDM (elastomeric terpolymer synthesized from ethylene, propylene and diene monomer) 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.
1.3 SI units shall be used in referee decisions.
1.4 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.

General Information

Status
Historical
Publication Date
09-Jun-1997
ICS
83.060 - Rubber
91.100.50 - Binders. Sealing materials
Technical Committee
D08 - Roofing and Waterproofing
Drafting Committee
D08.18 - Nonbituminous Organic Roof Coverings
Current Stage
Ref Project

Relations

Replaced By
ASTM D4811-04 - Standard Specification for Nonvulcanized (Uncured) Rubber Sheet Used as Roof Flashing
Effective Date
01-Jan-2004

Buy Standard

ASTM D4811-97 - Standard Specification for Nonvulcanized Rubber Sheet Used as Roof FlashingASTM D4811-97 - Standard Specification for Nonvulcanized Rubber Sheet Used as Roof Flashing
PreviousNext
Technical specification
ASTM D4811-97 - Standard Specification for Nonvulcanized Rubber Sheet Used as Roof Flashing
English language
4 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 4811 – 97
Standard Specification for
Nonvulcanized Rubber Sheet Used as Roof Flashing
This standard is issued under the fixed designation D 4811; 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 D 1204 Test Method for Linear Dimensional Changes on a
Nonrigid Thermoplastic Sheeting or Film at Elevated
1.1 This specification covers nonvulcanized rubber sheet
Temperatures
made of EPDM (ethylene-propylene-diene terpolymer) or CR
D 1418 Practice for Rubber and Rubber Latices—
(polychloroprene) intended for use as watertight roof flashing
Nomenclature
exposed to the weather.
D 2137 Test Methods for Rubber Property—Brittleness
1.2 The tests and property limits used to characterize these
Point of Flexible Polymers and Coated Fabrics
flashing materials are specific for each classification and are
D 3182 Practice for Rubber—Materials, Equipment, and
minimum values to make the product fit for its intended
Procedures for Mixing Standard Compounds and Prepar-
purpose.
ing Standard Vulcanized Sheets
1.3 SI units shall be used in referee decisions.
G 26 Practice for Operating Light-Exposure Apparatus
1.4 In-place roof system design criteria, such as fire resis-
(Xenon-Arc Type) With and Without Water for Exposure
tance, field seaming strength, material compatibility, and uplift
of Nonmetallic Materials
resistance, among others, are beyond the scope of this speci-
G 53 Practice for Operating Light and Water Exposure
fication.
(Fluorescent UV/Condensation Type) for Exposure of
1.5 The following precautionary caveat pertains to the test
Nonmetallic Materials
methods portion only, Section 8, of this specification: This
standard may involve hazardous materials, operations, and
3. Classification
equipment. This standard does not purport to address the
3.1 The following types are used to identify the principal
safety concerns associated with its use. It is the responsibility
polymer components of the flashing material (see Note 1):
of the user of this standard to establish appropriate safety and
3.1.1 Type I—Ethylene-Propylene-Diene Terpolymer
health practices and determine the applicability of regulatory
(EPDM).
limitations prior to use.
3.1.2 Type II—Chloroprene Polymer (CR).
2. Referenced Documents
NOTE 1—For definitions of polymer types, see Practice D 1418. For
2.1 ASTM Standards: definitions of terms related to roofing, see Terminology D 1079.
D 412 Test Methods for Rubber Properties in Tension
4. Materials and Manufacture
D 471 Test Methods for Rubber Property—Effect of Liq-
uids 4.1 The flashing material shall be formulated from the
appropriate polymer type and other compounding ingredients.
D 518 Test Method for Rubber Deterioration—Surface
Cracking The principal polymer in the flashing material shall be one of
those listed in 3.1 in accordance with proportions listed in 3.2
D 573 Test Methods for Rubber—Deterioration in Air
Oven and greater than 95% of the total polymer.
4.2 The flashing material shall be capable of being bonded
D 624 Test Methods for Rubber Property—Tear Resistance
D 1079 Terminology Relating to Roofing, Waterproofing, to itself, to the roofing membrane, and to substrate for making
watertight field splices and repairs. The manufacturer or
and Bituminous Materials
D 1149 Test Method for Rubber Deterioration—Surface fabricator shall recommend suitable bonding methods and
materials.
Ozone Cracking in a Chamber
5. Physical Requirements
5.1 Class V flashing material shall conform to the physical
This specification is under the jurisdiction of ASTM Committee D08 on
Roofing, Waterproofing, and Bituminous Materials and is the direct responsibility of
property requirements prescribed in Table 1 and Table 2. Class
Subcommittee D08.18 on Nonbituminous Organic Roof Coverings.
Current edition approved June 10, 1997. Published January 1998 Originally
published as D 4811 – 90. Last previous edition D 4811 – 90.
2 4
Annual Book of ASTM Standards, Vol 09.01. Annual Book of ASTM Standards, Vol 08.01.
3 5
Annual Book of ASTM Standards, Vol 04.04. Annual Book of ASTM Standards, Vol 14.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
D4811–97
TABLE 1 Property Requirements for Flashing Before
7. Workmanship, Finish, and Appearance
Vulcanization
7.1 The flashing material shall be visually free of pinholes,
Type I Type II
particles of foreign matter, undispersed raw materials, or other
Thickness, min,
manufacturing defects that might affect serviceability.
in. (mm) 0.055 (1.4) 0.055 (1.4)
7.2 If the number of irregularities appear excessive on a
Green Strength
Modulus 100 %
sheet (or portion thereof), then its rejection should be negoti-
at 75°F (20°C)
ated between involved parties.
psi (kPa) 25–250 25–75
7.3 Edges of the sheet shall be capable of being seamed to
(172–1725) (172–517)
Elongation (Ultimate),
one another and to other roofing components without fish
min % 400 400
mouthing.
Modulus 100 %
at 122°F (50°C)
psi (kPa) 12 (83) 12 (83)
8. Test Methods
Elongation (Ultimate),
min, % 200 200 8.1 Thickness—Test Methods D 412.
Shelf Stability:
8.2 Green Strength:
Modulus 100 %
8.2.1 Test a fresh sample manufactured within one week.
at 75°F (20°C),
max, psi (kPa) 250 (1725) 250 (1725)
8.2.2 Condition Type I material at 73 6 4°F (23 6 2°C) for
Elongation, min,% 400 400
a minimum of 1 h and a maximum of 8 h before proceeding
Vulcanizability:
with the testing.
Tensile strength,
min, psi (kPa) 406 (2800) 406 (2800) 8.2.3 Decrystallize Type II material by placing in a circu-
Elongation, min % 400 400
lating air oven at 158 6 4°F (70 6 2°C) for 15 min. After
Tensile Set: min, % 80 80
removal from the oven, condition at 73 6 4°F (23 6 2°C) for
Dimensional Stability,
max, % 610 610
a minimum of 1 h and a maximum of 8 h before proceeding
Weatherability, no pass pass
with the testing.
cracks or crazing
8.2.4 After conditioning, die out a 0.5-in. (12.7-mm) dumb-
bell (Die A) and determine the modulus at 100 % extension and
the ultimate elongation at 73 6 4°F (23 6 2°C) in accordance
TABLE 2 Property Requirements for Flashing After Vulcanization
with Test Methods D 412.
Type I Type II
8.2.5 After conditioning, die out a 0.5 in. (12.7 mm)
Vulcanization, at 320°F (160°C), min 20 6220 6 2
dumbbell (Die A), condition in a circulating air oven at 122 6
Tensile Strength, min, psi (MPa) 1305 (9.0) 1205 (8.3)
Elongation, min, % 300 250
4°F (50 6 2°C) for 15 min minimum and 30 min maximum
Tear Resistance, min, lb/in. (kN/M) 125 (22) 125 (22)
and determine the modulus at 100 % extension and the ultimate
Brittle Point, max, °F (°C) −49 (−45) pass −31 (−35) pass
elongation at 1226 4°F (50 6 2°C) in accordance with Test
Tensile Set, max, % 10 10
Ozone Resistance, (73) no cracks no cracks
Methods D 412.
Heat Aging, Air Oven
8.3 Shelf Stability— Determine green strength in accor-
Tensile Strength, min, psi (MPa) 1205 (8.3) 1205 (8.3)
dance with 8.2 after aging in a circulating air oven for 46 h at
Elongation, min, % 200 200
Tear Resistance (Die C), lbf/in. (kN/m), 125 (22) 125 (22)
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

ASTM
ASTM C957/C957M-17(2024)(Specification)
Standard Specification for High-Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane with Integral Wearing Surface

ABSTRACT
This specification describes the required properties and test methods for high-solids content, cold liquid-applied elastomeric membrane with integral wearing surface for waterproofing building decks not subject to hydrostatic pressure. This specification does not include specific requirements for skid resistance or fire retardance, although both may be important in specific uses. The properties to which the materials will be tested upon for conformance are as follows: weight loss of base coat; low temperature crack bridging; adhesion-in-peel to cement mortar and plywood substrates after water immersion; chemical resistance after water, ethylene glycol, and mineral spirits exposure; weathering resistance, recovery from elongation, tensile retention, and elongation retention; abrasion resistance; and stability.
SCOPE
1.1 This specification describes the required properties and test methods for a cold liquid-applied elastomeric membrane for waterproofing building decks not subject to hydrostatic pressure. The specification applies only to a membrane system that has an integral wearing surface. This specification does not include specific requirements for skid resistance or fire retardance, although both may be important in specific uses.  
1.2 The type of membrane system described in this specification is used for pedestrian and vehicular traffic and in high-abrasion applications. The membrane may be single or multi-component, and may consist of one or more coats (for example base coat, top coat, etc.). The coat(s) may be built to the desired thickness in one or more applications. One coat (base coat) provides the primary waterproofing function and normally comprises the major amount of organic material in the membrane. The function of the top coat(s) is to resist wear and weather. Aggregate may be used as a component of the membrane system, as all or part of a course, to increase wear and skid resistance.  
1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.  
1.4 Test methods in this specification require a minimum 0.5 mm [0.020 in.] base coat dry film thickness. Actual thickness required for a particular application and the use of aggregate in top coats shall be established by the membrane manufacturer.  
1.5 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.  
1.6 The following safety hazards caveat pertains only to the test method portion, Section 5, of this specification: This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 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.

  • Technical specification
    4 pages
    English language
    sale 15% off
ASTM
ASTM C898/C898M-09(2024)(Guide)
Standard Guide for Use of High Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane with Separate Wearing Course

SIGNIFICANCE AND USE
4.1 Designers and installers of waterproofing systems may consult this guide for a discussion of important elements of the use of cold liquid-applied waterproofing membranes and associated elements of construction. This guide is not intended to serve as a specification for waterproofing installation.  
4.2 Long-term performance of waterproofing with a separate wearing course is important because of the substantial difficulty in determining the location of leakage and in removing overlying materials to make repairs.  
4.3 Refer to Guide C1471/C1471M for application on below grade walls and vertical surfaces.
SCOPE
1.1 This guide describes the use of a high solids content, cold liquid-applied elastomeric waterproofing membrane that meets the criteria in Specification C836/C836M, in a waterproofing system subject to hydrostatic pressure for building decks over occupied space where the membrane is covered with a separate protective wearing course.  
1.2 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.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

  • Guide
    14 pages
    English language
    sale 15% off
ASTM
ASTM D4811/D4811M-16(2023)(Specification)
Standard Specification for Nonvulcanized (Uncured) Rubber Sheet Used as Roof Flashing

ABSTRACT
This specification covers nonvulcanized (uncured) rubber sheet made of ethylene-propylene-diene terpolymer (EPDM) or polychloroprene (CR) intended for use as watertight roof flashing exposed to the weather. 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. The flashing material shall be formulated from the appropriate polymer type and other compounding ingredients, and shall be capable of being bonded to itself, to the roofing membrane, and to substrate for making watertight field splices and repairs. Property requirements for flashing before vulcanization include thickness, Green strength modulus, ultimate elongation, shelf stability, vulcanizability, tensile strength and set, dimensional stability, and weatherability. Consequently, the property requirements for flashing after vulcanization includes tensile strength and set, elongation, tear resistance, brittle point, ozone resistance, air oven heat aging, water absorption and weight change, linear dimension change, and weatherability.
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 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.  
1.4 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 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 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.

  • Technical specification
    4 pages
    English language
    sale 15% off
ASTM
ASTM D4637/D4637M-15(2021)e1(Specification)
Standard Specification for EPDM Sheet Used in Single-Ply Roof Membrane

SCOPE
1.1 This specification covers flexible sheet made from ethylene-propylene-diene terpolymer (EPDM) intended for use in single-ply roofing membranes exposed to the weather. The tests and property limits used to characterize the sheet are values to ensure minimum quality for the intended use. The sheet may be non-reinforced, fabric- or scrim-reinforced, or fabric-backed vulcanized rubber sheet.  
1.2 In-place roof system design criteria, such as fire resistance, field seaming strength, material compatibility, and uplift resistance, among others, are factors that must be considered but are beyond the scope of this specification.  
1.3 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.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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.

  • Technical specification
    4 pages
    English language
    sale 15% off
ASTM
ASTM C957/C957M-17(2024)(Specification)
Standard Specification for High-Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane with Integral Wearing Surface

ABSTRACT
This specification describes the required properties and test methods for high-solids content, cold liquid-applied elastomeric membrane with integral wearing surface for waterproofing building decks not subject to hydrostatic pressure. This specification does not include specific requirements for skid resistance or fire retardance, although both may be important in specific uses. The properties to which the materials will be tested upon for conformance are as follows: weight loss of base coat; low temperature crack bridging; adhesion-in-peel to cement mortar and plywood substrates after water immersion; chemical resistance after water, ethylene glycol, and mineral spirits exposure; weathering resistance, recovery from elongation, tensile retention, and elongation retention; abrasion resistance; and stability.
SCOPE
1.1 This specification describes the required properties and test methods for a cold liquid-applied elastomeric membrane for waterproofing building decks not subject to hydrostatic pressure. The specification applies only to a membrane system that has an integral wearing surface. This specification does not include specific requirements for skid resistance or fire retardance, although both may be important in specific uses.  
1.2 The type of membrane system described in this specification is used for pedestrian and vehicular traffic and in high-abrasion applications. The membrane may be single or multi-component, and may consist of one or more coats (for example base coat, top coat, etc.). The coat(s) may be built to the desired thickness in one or more applications. One coat (base coat) provides the primary waterproofing function and normally comprises the major amount of organic material in the membrane. The function of the top coat(s) is to resist wear and weather. Aggregate may be used as a component of the membrane system, as all or part of a course, to increase wear and skid resistance.  
1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.  
1.4 Test methods in this specification require a minimum 0.5 mm [0.020 in.] base coat dry film thickness. Actual thickness required for a particular application and the use of aggregate in top coats shall be established by the membrane manufacturer.  
1.5 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.  
1.6 The following safety hazards caveat pertains only to the test method portion, Section 5, of this specification: This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 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.

  • Technical specification
    4 pages
    English language
    sale 15% off
ASTM
ASTM C898/C898M-09(2024)(Guide)
Standard Guide for Use of High Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane with Separate Wearing Course

SIGNIFICANCE AND USE
4.1 Designers and installers of waterproofing systems may consult this guide for a discussion of important elements of the use of cold liquid-applied waterproofing membranes and associated elements of construction. This guide is not intended to serve as a specification for waterproofing installation.  
4.2 Long-term performance of waterproofing with a separate wearing course is important because of the substantial difficulty in determining the location of leakage and in removing overlying materials to make repairs.  
4.3 Refer to Guide C1471/C1471M for application on below grade walls and vertical surfaces.
SCOPE
1.1 This guide describes the use of a high solids content, cold liquid-applied elastomeric waterproofing membrane that meets the criteria in Specification C836/C836M, in a waterproofing system subject to hydrostatic pressure for building decks over occupied space where the membrane is covered with a separate protective wearing course.  
1.2 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.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

  • Guide
    14 pages
    English language
    sale 15% off
ASTM
ASTM C792-23(Test Method)
Standard Test Method for Effects of Heat Aging on Weight Loss, Cracking, and Chalking of Elastomeric Sealants

SIGNIFICANCE AND USE
5.1 Weight loss through volatilization of components of a sealant in a building joint may affect sealant appearance because of shrinkage, and sealant performance because of the loss of functional sealant components. Exposure to high-temperature environments will accelerate the loss of volatiles.  
5.2 This test method measures weight loss. It can be used in combination with a knowledge of sealant density to estimate shrinkage. In addition, when compared to sealant theoretical weight solids, it provides an estimate of the extent to which functional sealant components can be volatilized when exposed to high service temperatures. Substantial losses of this type may help predict early failures in durability. Also, development of cracks or chalking, or both, lessens sealant service life. However, a sealant that develops no cracks or chalking, or low weight loss in this test method, does not necessarily assure good durability.
SCOPE
1.1 This test method covers a laboratory procedure for determining the effects of heat aging on weight loss, cracking, and chalking of cured-in-place elastomeric joint sealants (single- and multi-component) for use in building construction.  
1.2 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.3 There is no known ISO equivalent to this test method.  
1.4 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.

  • Standard
    3 pages
    English language
    sale 15% off
  • Standard
    3 pages
    English language
    sale 15% off
ASTM
ASTM C793-23(Test Method)
Standard Test Method for Effects of Laboratory Accelerated Weathering on Elastomeric Joint Sealants

SIGNIFICANCE AND USE
5.1 It is known that solar radiation contributes to the degradation of sealants in exterior building joints. The use of a laboratory accelerated weathering machine with actinic radiation, moisture and heat appears to be a feasible means to give indications of early degradation by the appearance of sealant cracking. However, simulated weather factors in combination with extension may produce more severe degradation than weather factors only. Therefore, the effect of the weathering test is made more sensitive by the addition of the bending of the specimen at cold temperature.
SCOPE
1.1 This test method covers a laboratory procedure for determining the effects of accelerated weathering on cured-in-place elastomeric joint sealants (single- and multicomponent) for use in building construction.  
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.  
1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other ASTM committees or other organizations.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    English language
    sale 15% off
ASTM
ASTM D4811/D4811M-16(2023)(Specification)
Standard Specification for Nonvulcanized (Uncured) Rubber Sheet Used as Roof Flashing

ABSTRACT
This specification covers nonvulcanized (uncured) rubber sheet made of ethylene-propylene-diene terpolymer (EPDM) or polychloroprene (CR) intended for use as watertight roof flashing exposed to the weather. 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. The flashing material shall be formulated from the appropriate polymer type and other compounding ingredients, and shall be capable of being bonded to itself, to the roofing membrane, and to substrate for making watertight field splices and repairs. Property requirements for flashing before vulcanization include thickness, Green strength modulus, ultimate elongation, shelf stability, vulcanizability, tensile strength and set, dimensional stability, and weatherability. Consequently, the property requirements for flashing after vulcanization includes tensile strength and set, elongation, tear resistance, brittle point, ozone resistance, air oven heat aging, water absorption and weight change, linear dimension change, and weatherability.
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 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.  
1.4 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 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 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.

  • Technical specification
    4 pages
    English language
    sale 15% off
ASTM
ASTM C794-18(2022)(Test Method)
Standard Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants

SIGNIFICANCE AND USE
5.1 There are differences in opinion among those concerned with sealant technology whether or not this adhesion-in-peel test simulates the type of strain and e-tensile stresses encountered by a sealant in normal use. Nevertheless, this test provides a valuable measurement of the ability of the cured sealant to maintain a bond to the substrate under severe peel conditions.  
5.2 Many sealant manufacturers utilize the adhesion-in-peel test for determining the adhesive characteristics of sealant/primer combinations with unusual or proprietary substrates. This test is especially useful for quality measurements comparing batches of the same sealant relative to adhesion or for studying adhesion of a given sealant to a variety of substrates.  
5.3 This test method alone is not appropriate for comparing the overall performance of different sealants in a given application. The adhesive force that determines if a given sealant is useful in a given application also depends on the modulus of elasticity and the degree to which the sealant will be strained. This test, as it exists, does not consider the modulus of elasticity, nor amount of stress that will be produced by a given strain in an actual sealant in a moving joint. No known correlations are given to relate and apply modulus values to the peel values.  
5.4 This test requires that the results indicate whether the failure mode is primarily adhesive or cohesive. It is important to note that a cohesive failure is not necessarily better than an adhesive failure, if the adhesive value is sufficient for the application. Having adhesive failure allows one to study the change of adhesion with time and with the various stress conditions.
SCOPE
1.1 This test method covers a laboratory procedure for determining the strength and characteristics of the peel properties of a cured-in-place elastomeric joint sealant, single- or multicomponent, for use in building construction.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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.

  • Standard
    7 pages
    English language
    sale 15% off