ASTM D6381-00
(Test Method)Standard Test Method for Measurement of Asphalt Shingle Tab Mechanical Uplift Resistance
Standard Test Method for Measurement of Asphalt Shingle Tab Mechanical Uplift Resistance
SCOPE
1.1 This test method covers measuring the tab uplift resistance of asphalt roofing shingles by mechanical means. It is applicable to shingles that use a factory-applied or field-applied adhesive. This test can only be used in laboratories to screen different sealant systems within the same laboratory.
Note 1-There are several types of shingles designed for service without a factory-applied or field-applied adhesive. These shingles, when applied in accordance with the manufacturer's application instructions, employ other means to provide resistance against the forces generated by the action of wind such as tab 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.
1.2 This test method shall be permitted to be use 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 must be stated in the report.
1.3 The values stated in SI units are to be regarded as 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D 6381 – 00
Standard Test Method for
Measurement of Asphalt Shingle Tab Mechanical Uplift
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 shingles, overlaid and sealed prior to testing. All specimens are
then conditioned and tested at selected temperatures. Speci-
1.1 This test method covers measuring the tab uplift resis-
mens are tested by lifting the exposed tab edge and recording
tance of asphalt roofing shingles by mechanical means. It is
the uplift force required.
applicable to shingles that use a factory-applied or field-applied
adhesive. This test can only be used in laboratories to screen
4. Significance and Use
different sealant systems within the same laboratory.
4.1 Tab uplift resistance is one of the properties of an
NOTE 1—There are several types of shingles designed for service
applied shingle that relates to its ability to withstand wind
without a factory-applied or field-applied adhesive. These shingles, when
forces. This mechanical test is a laboratory method to measure
applied in accordance with the manufacturers’ application instructions,
that resistance at a designated temperature.
employ other means to provide resistance against the forces generated by
4.1.1 No quantitative relationship has been established be-
the action of wind such as tab geometry and shingle construction. Field
tween the mechanical tap uplift resistance and uplift forces due
experience has shown that these types of shingles function satisfactorily in
service. Because there are a variety of these shingle designs, it is not to the wind.
practical to describe in this test method how to test these shingles for uplift
4.2 Many factors influence the sealing characteristics of
resistance. The testing of these types of shingles, therefore, goes beyond
shingles in the field; for example, temperature, time, contami-
the scope of this test method.
nation by dirt and debris, roof slope, and interference by
1.2 This test method shall be permitted to be used over a
misplaced fasteners. It is not the objective of this test method
range of sealing time and temperature combinations and testing
to address all of these influences. This test method is designed
temperatures to simulate a variety of actual field use condi-
to determine the tab mechanical uplift resistance when repre-
tions. The times and temperatures used must be stated in the
sentative specimens of shingles are sealed under selected
report.
conditions prior to testing.
1.3 The values stated in SI units are to be regarded as the
5. Apparatus
standard.
1.4 This standard does not purport to address all of the
5.1 The Tensile Testing Machine, shall be a constant-rate-
safety concerns, if any, associated with its use. It is the
of-extension (CRE) type.
responsibility of the user of this standard to establish appro-
5.2 Heavy-Duty Paper Cutter, steel rule, die or template 95
3 1 3
priate safety and health practices and determine the applica-
by 114mm(3 ⁄4 by 4 ⁄2 in.) and 95 by 178 mm (3 ⁄4 by 7 in.).
bility of regulatory limitations prior to use.
5.3 The Test Fixture is a specially designed apparatus and
drawings are on file at ASTM Headquarters. Fig. 1 is a photo
2. Referenced Documents
of the apparatus in a typical tensile testing machine with a
2.1 ASTM Standards:
specimen in place.
D 228 Test Methods for Asphalt Roll Roofing, Cap Sheets,
5.4 Temperature-Controlled Chamber, to seal the speci-
and Shingles
mens, capable of maintaining a temperature within 61.5°C
D 1079 Terminology Relating to Roofing, Waterproofing,
(62.5°F) of the selected temperature. The sample tray shall be
and Bituminous Materials
a rigid support large enough to hold specimens in the chamber.
5.5 Temperature-Controlled Test Chamber, capable of con-
3. Summary of Test Method
trol within 61.5°C (62.5°F) which shall be used when testing
3.1 The test specimens are constructed from pieces of
the specimens at other than room temperature.
1 3
This test method is under the jurisdiction of ASTM Committee D08 on The sole source of supply of this commercially available test fixture known to
Roofing, Waterproofing and Bituminous Materials and is the direct responsibility of the committee at this time is Ashcraft Machine and Supply Inc., 185 Wilson St.,
Subcommittee D08.02 on Prepared Roofings, Shingles and Siding Materials. Newark, Ohio 43055. Specify Shingle Tab Uplift Tester, Model 102. If you are
Current edition approved July 10, 2000. Published September 2000. Originally aware of alternative suppliers, please provide this information to ASTM Headquar-
published as D 6381–99. Last previous edition D 6381–99. ters. Your comments will receive careful consideration at a meeting of the
Annual Book of ASTM Standards, Vol 04.04. responsible technical committee, which you may attend.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 6381
FIG. 1 Shingle Tab Uplift Test Apparatus
6. Specimen Preparation 6.6.1 The critical dimension is the distance the top piece
overlaps the sealant on the bottom piece (denoted A in Fig. 3).
6.1 Samples for testing shall be selected in accordance with
This dimension shall be equal to the overlap in the specified
the method specified in the sampling section of Test Methods
application.
D 228. The test shall consist of ten specimens per test condi-
6.7 Position the specimens on the tray without overlapping
tion, as described in the following paragraphs.
or stacking of the individual specimens.
6.2 Specimens taken from the sample of shingles shall be
6.8 For cases when an alternate top attachment method is
representative of the typical geometry (area), thickness (cali-
desired (see 6.3) a special metal connector shall be epoxy-
per), and contamination level (back surface particles, and so
bonded to the top piece of the specimen following sealant
forth) of the adhesive in the lot of material being investigated.
bonding and prior to conditioning and testing. This metal
6.3 Insertion of the test apparatus can be a problem for cases
connector shall be equal to the width of the specimen. It shall
where the sealant is brittle and weak or where it is applied close
be positioned at the edge of the top piece and bonded to
to the leading edge of the shingle. For these, and other such
adequately attach to the top of the specimen while allowing for
cases where normal insertion of the top clamp of the apparatus
easy insertion o
...
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