ASTM D4869-04

Standard Specification for Asphalt-Saturated Organic Felt Underlayment Used in Steep Slope Roofing

SCOPE
1.1 This specification covers asphalt-saturated organic felt for use as an underlayment with steep slope roofing.
1.2 The objective of this specification is to provide a finished product that will lie flat and resist wrinkling, puckering, and shrinking when left exposed to the sun, rain, frost, or dew for a period of two weeks after application.
1.3 The values stated in SI units are to be regarded as the standard.
1.4 The following safety hazards caveat pertains only to the test method portion, 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Jun-2004
• ICS: 91.100.15 - Mineral materials and products
• Technical Committee: D08 - Roofing and Waterproofing
• Drafting Committee: D08.02 - Steep Roofing Products and Assemblies

Relations

• Replaces: ASTM D4869-03 - Standard Specification for Asphalt-Saturated Organic Felt Underlayment Used in Steep Slope Roofing
• Effective Date: 01-Jul-2004
• Replaced By: ASTM D4869-05 - Standard Specification for Asphalt-Saturated Organic Felt Underlayment Used in Steep Slope Roofing
• Effective Date: 01-Jan-2005

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 4869 – 04
Standard Specification for
Asphalt-Saturated Organic Felt Underlayment Used in Steep
1
Slope Roofing
This standard is issued under the fixed designation D 4869; 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 (Dry) Felt by the Vacuum Method
F 1087 Test Method for Linear Dimensional Stability of a
1.1 This specification covers asphalt-saturated organic felt
Gasket Material to Moisture
for use as an underlayment with steep slope roofing.
1.2 The objective of this specification is to provide a
3. Terminology
finished product that will lie flat and resist wrinkling, pucker-
3.1 Definitions—For definitions of terms used in this speci-
ing, and shrinking when left exposed to the sun, rain, frost, or
fication, refer to Terminology D 1079.
dew for a period of two weeks after application.
1.3 The values stated in SI units are to be regarded as the
4. Classification
standard.
4.1 Asphalt saturated felts covered by this specification are
1.4 The following safety hazards caveat pertains only to the
of four types:
test method portion, Section 8, of this specification: This
4.1.1 Type I—#8 Underlayment,
standard does not purport to address all of the safety concerns,
4.1.2 Type II—#13 Underlayment,
if any, associated with its use. It is the responsibility of the user
4.1.3 Type III—#20 Underlayment, and
of this standard to establish appropriate safety and health
4.1.4 Type IV—#26 Underlayment.
practices and determine the applicability of regulatory limita-
tions prior to use.
5. Materials and Manufacture
5.1 In the process of manufacture, a single thickness of
2. Referenced Documents
2 organic dry felt shall be uniformly saturated with an asphaltic
2.1 ASTM Standards:
saturant.
D 70 Test Method for Specific Gravity and Density of
5.2 The felt shall be produced principally from organic
Semi-Solid Bituminous Materials (Pychnometer Method)
fibers. The surface of the felt shall be uniform and relatively
D 146 Test Methods for Sampling and Testing Bitumen-
smooth. Upon splitting or tearing on the bias, the felt shall
Saturated Felts and Woven Fabrics for Roofing and Wa-
appear free of lumps or particles of foreign substances.
terproofing
D 228 Test Methods for Sampling, Testing, andAnalysis of
6. Physical Requirements
Asphalt Roll Roofing, Cap Sheets, and Shingles Used in
6.1 The material shall conform to the physical requirements
Roofing and Waterproofing
prescribed in Table 1 and the dimensions and masses pre-
D 1079 Terminology Relating to Roofing, Waterproofing,
scribed in Table 2.
and Bituminous Materials
6.2 The finished product shall not crack nor be so sticky as
D 1922 Test Method for Propagation Tear Resistance of
to cause tearing or other damage upon being unrolled at
Plastic Film and Thin Sheeting by Pendulum Method
temperatures between 0 and 60°C (32 and 140°F).
D 6136 Test Method for Kerosene Number of Unsaturated
6.3 The finished product shall pass the water shower expo-
sure test described in 8.3, indicating resistance to liquid water
transmission.
1
This specification is under the jurisdiction of ASTM Committee D08 on
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.02
7. Workmanship, Finish, and Appearance
on Prepared Roofings, Shingles, and Siding Materials.
7.1 The felt shall be thoroughly and uniformly saturated,
Current edition approved July 1, 2004. Published July 2004. Originally approved
in 2002. Last previous edition approved in 2003 as D 4869 – 03.
and shall show no unsaturated spots at any point upon cutting
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
50-mm (2-in.) wide strips at random across the entire sheet and
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
splitting them open for their full length.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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D4869–04
TABLE 1 Physical Requirements
Type I Type II Type III Type IV
Tear strength, 23 6 2°C (73 6 4°F) min, N (lbf) 2.0 2.0 4.0 4.0
(both cross and with direction of sheet) (0.45) (0.45) (0.90) (0.90)
Pliability at 23 6 2°C (73 6 4°F). Ten strips 12.7 mm 12.7 mm 19.1 mm 19.1 mm
tested shall not crack when bent 90° at a (0.50 in.) (0.50 in.) (0.75 in.) (0.75 in.)
uniform speed over a rounded corner of
radius in table for each type.
Loss on heating at 105°C (221°F) for 5 h max, % 6 6 6 6
Liquid water transmission test Pass Pass Pa
...