ASTM D6221/D6221M-00(2021)
(Specification)Standard Specification for Reinforced Bituminous Flashing Sheets for Roofing and Waterproofing
Standard Specification for Reinforced Bituminous Flashing Sheets for Roofing and Waterproofing
ABSTRACT
This specification covers two types of factory prepared reinforced bituminous flashing sheets used for roofing and waterproofing systems. The bitumen used may be asphalt, coal-tar pitch, or polymer modified bitumen. The reinforcement may include any one or a combination of organic (wood fiber), polyester, or glass fiber felts, woven fabrics, or thermoplastic films. Fine mineral powders, granules, or metal foils may be used as surfacing. Specimens shall be sampled, be tested for, and consequently conform to dimensional and physical properties, as follows: mass; thickness; load-strain properties; impact resistance; tear strength and resistance; flexibility; breaking load; and elongation at break. Calculation procedures for the mean, estimated standard deviation, and mean variance of test values from specimens tested before and after heat conditioning are also detailed.
SCOPE
1.1 This specification covers factory-prepared reinforced bituminous sheet used in flashing. The bitumen used may be asphalt, coal-tar pitch, or polymer-modified bitumen. The reinforcement may include any one or a combination of organic (wood fiber), polyester, or glass fiber felts, woven fabrics, or thermoplastic films. Fine mineral powders, granules, or metal foils may be used as surfacing.
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 The following precautionary statement pertains only to the test method portion, Section 7, 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.
1.4 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.
General Information
Relations
Standards Content (Sample)
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.
Designation:D6221/D6221M −00 (Reapproved 2021)
Standard Specification for
Reinforced Bituminous Flashing Sheets for Roofing and
Waterproofing
This standard is issued under the fixed designation D6221/D6221M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope Shingles Used in Roofing and Waterproofing
D751 Test Methods for Coated Fabrics
1.1 This specification covers factory-prepared reinforced
D1079 Terminology Relating to Roofing and Waterproofing
bituminous sheet used in flashing. The bitumen used may be
D2523/D2523M Practice for Testing Load-Strain Properties
asphalt, coal-tar pitch, or polymer-modified bitumen. The
of Roofing Membranes
reinforcement may include any one or a combination of
D3746/D3746M Test Method for Impact Resistance of Bi-
organic (wood fiber), polyester, or glass fiber felts, woven
tuminous Roofing Systems
fabrics,orthermoplasticfilms.Finemineralpowders,granules,
D5601 Test Method for Tearing Resistance of Roofing and
or metal foils may be used as surfacing.
Waterproofing Materials and Membranes (Withdrawn
1.2 The values stated in either SI units or inch-pound units
2002)
are to be regarded separately as standard. The values stated in
D5683/D5683M Test Method for Flexibility of Roofing and
each system may not be exact equivalents; therefore, each
Waterproofing Materials and Membranes
system shall be used independently of the other. Combining
D5869/D5869M Practice for Dark Oven Heat Exposure of
values from the two systems may result in nonconformance
Roofing and Waterproofing Materials
with the standard.
1.3 The following precautionary statement pertains only to 3. Terminology
the test method portion, Section 7, of this specification: This
3.1 Definitions:
standard does not purport to address all of the safety concerns,
3.1.1 See Terminology D1079 for terms relating to roofing
if any, associated with its use. It is the responsibility of the user
or waterproofing.
of this standard to establish appropriate safety, health, and
environmental practices and determine the applicability of
4. Classification
regulatory limitations prior to use.
4.1 Type 1—Heavy, thick flashing sheets.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
4.2 Type 2—Lightweight, thin flashing sheets
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 5. Significance and Use
mendations issued by the World Trade Organization Technical
5.1 The criteria listed in this specification are based on
Barriers to Trade (TBT) Committee.
round robin testing of materials that, if correctly installed, can
be used as the primary material for flashing membranes. The
2. Referenced Documents
manufacturer’s installation recommendations must be followed
2.1 ASTM Standards:
in every case.
D228/D228M Test Methods for Sampling, Testing, and
5.2 Compliance with the criteria in this specification is
Analysis of Asphalt Roll Roofing, Cap Sheets, and
believed to be necessary for satisfactory performance, but the
linkage has not been established between performance and
1 these criteria.
This specification is under the jurisdiction of ASTM Committee D08 on
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.04
on Felts, Fabrics and Bituminous Sheet Materials.
6. Physical Properties
Current edition approved Nov. 15, 2021. Published November 2021. Originally
approved in 1998. Last previous edition approved in 2014 as D6221/D6221M – 00 6.1 Conform to criteria in Table 1.
ɛ1
(2014) . DOI: 10.1520/D6221_D6221M-00R21.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
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D6221/D6221M−00 (2021)
TABLE 1 Physical Properties
V 1V
~ !
b a
f 5 22 (4)
2 2
Property Type 1 Type 2 V V
b a
2 2
Mass, kg/m [lb/100 ft ], min 3.4 [70] 1.7 [35] n 11 n 11
b a
Thickness, mm [in.], min 3.3 [0.130] 0.6 [0.025]
Breaking load, kN/m [lbf/in.], minimum at 73.4 °F 9.6 [55] 9.6 [55] where:
Elongation at break, min % at 73.4 °F 10 3
V and V = the before and after heat conditioning mean
b a
Mean tear resistance, N [lbf], minimum at 73.4 °F 6 2
variances, and
Peak tear resistance, N [lbf], minimu
...
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