ASTM D6381-03b
(Test Method)Standard Test Method for Measurement of Asphalt Shingle Mechanical Uplift Resistance
Standard Test Method for Measurement of Asphalt Shingle Mechanical Uplift Resistance
SIGNIFICANCE AND USE
Uplift resistance is one of the properties of an applied shingle that relates to its ability to withstand wind forces. The mechanical tests described are laboratory methods to measure that resistance at a designated temperature after the shingles have been sealed under designated conditions.
5.1.1 No quantitative relationship has been established between the mechanical uplift resistance and uplift forces due to the wind.
Many factors influence the sealing characteristics of shingles in the field; for example, temperature, time, contamination by dirt and debris, roof slope, and interference by misplaced fasteners. It is not the objective of this test method to address all of these influences. This test method is designed to determine the mechanical uplift resistance when representative specimens of shingles are sealed under selected conditions prior to testing.
Procedure A produces lower results than Procedure B. Procedure A provides an edge-lift load value and Procedure B provides a perpendicular load value. The procedure applicable to a specific product depends on the specific product design, geometry, and rigidity. It is the responsibility of the user of this test method to determine the appropriate procedure with reference to the specific product and application. It is possible that engineering calculations would require both procedures to be employed, and for both results to be used in the calculation of the resistance of that specific product to the effects of wind.
SCOPE
1.1 This test method covers measuring the uplift resistance of asphalt roofing shingles by mechanical means. It is applicable to shingles that use a factory-applied or field-applied sealant.
1.2 There are several types of shingles designed for service without a factory-applied or field-applied sealant. These shingles, when applied in accordance with the manufacturers' application instructions, employ other means to provide resistance against the forces generated by the action of wind such as geometry and shingle construction. Field experience has shown that these types of shingles function satisfactorily in service. Because there are a variety of these shingle designs, it is not practical to describe in this test method how to test these shingles for uplift resistance. The testing of these types of shingles, therefore, goes beyond the scope of this test method.
1.3 This test method describes two procedures for measuring shingle uplift resistance. Procedure A employs a specially designed apparatus with a clamping device which facilitates lifting of the edge of the shingle and measuring the force required to break the seal. Procedure B employs a metal "T" section adhered to the weather surface of the shingle to facilitate application and measurement of a perpendicular force to break the seal.
1.4 It is not prohibited to use this test method over a range of sealing time and temperature combinations and testing temperatures to simulate a variety of actual field use conditions. The times and temperatures used shall be stated in the report.
1.5 The values stated in SI units are to be regarded as the standard. The inch-pound values given in parentheses are for information only.
1.6 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
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Standards Content (Sample)
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Designation:D6381–03b
Standard Test Method for
Measurement of Asphalt Shingle Mechanical Uplift
1
Resistance
This standard is issued under the fixed designation D 6381; 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. Referenced Documents
2
1.1 This test method covers measuring the uplift resistance 2.1 ASTM Standards:
of asphalt roofing shingles by mechanical means. It is appli- D 228 Test Methods for Sampling, Testing, andAnalysis of
cable to shingles that use a factory-applied or field-applied Asphalt Roll Roofing, Cap Sheets, and Shingles Used in
sealant. Roofing and Waterproofing
1.2 There are several types of shingles designed for service D 1079 Terminology Relating to Roofing, Waterproofing,
without a factory-applied or field-applied sealant. These and Bituminous Materials
shingles, when applied in accordance with the manufacturers’ D 3462 SpecificationforAsphaltShinglesMadefromGlass
application instructions, employ other means to provide resis- Felt and Surfaced with Mineral Granules
tanceagainsttheforcesgeneratedbytheactionofwindsuchas
3. Terminology
geometryandshingleconstruction.Fieldexperiencehasshown
that these types of shingles function satisfactorily in service. 3.1 Definitions—For definition of terms used in this test
method, refer to Terminology D 1079.
Because there are a variety of these shingle designs, it is not
practical to describe in this test method how to test these 3.2 Definitions of Terms Specific to This Standard:
3.2.1 seal—as it relates to steep roofing shingles,isthe
shingles for uplift resistance. The testing of these types of
shingles, therefore, goes beyond the scope of this test method. bonding that results from the activation of the sealant under the
action of time and temperature.
1.3 This test method describes two procedures for measur-
ing shingle uplift resistance. Procedure A employs a specially 3.2.2 sealant—as it relates to steep roofing shingles,is
defined as factory-applied or field-applied material designed to
designed apparatus with a clamping device which facilitates
lifting of the edge of the shingle and measuring the force seal the shingles to each other under the action of time and
temperature after the shingles are applied to a roof.
required to break the seal. Procedure B employs a metal “T”
3.2.3 sealed—as it relates to steep roofing shingles,isthe
section adhered to the weather surface of the shingle to
facilitate application and measurement of a perpendicular force condition of the shingles after the sealant has been activated by
the action of time and temperature.
to break the seal.
1.4 It is not prohibited to use this test method over a range
4. Summary of Test Method
of sealing time and temperature combinations and testing
4.1 The test specimens are constructed from pieces of
temperatures to simulate a variety of actual field use condi-
shingles, overlaid and sealed prior to testing.All specimens are
tions. The times and temperatures used shall be stated in the
then conditioned and tested at selected temperatures. Speci-
report.
mens are tested in ProcedureAby lifting the exposed edge and
1.5 The values stated in SI units are to be regarded as the
recording the uplift force required to break the seal, and in
standard. The inch-pound values given in parentheses are for
Procedure B, by recording the perpendicular force required to
information only.
break the seal.
1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Significance and Use
responsibility of the user of this standard to establish appro-
5.1 Uplift resistance is one of the properties of an applied
priate safety and health practices and determine the applica-
shingle that relates to its ability to withstand wind forces. The
bility of regulatory limitations prior to use.
mechanical tests described are laboratory methods to measure
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This test method is under the jurisdiction ofASTM Committee D08 on Roofing
2
and Waterproofing and is the direct responsibility of Subcommittee D08.02 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Prepared Roofings, Shingles and Siding Materials. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Dec. 1, 2003. Published January 2004. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1999. Last previous edition approved in 2003 as D 6381 – 03a. the ASTM website.
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