ASTM D4601/D4601M-04(2012)e1
(Specification)Standard Specification for Asphalt-Coated Glass Fiber Base Sheet Used in Roofing
Standard Specification for Asphalt-Coated Glass Fiber Base Sheet Used in Roofing
ABSTRACT
This specification covers the standards for asphalt impregnated and coated glass fiber base sheet intended for use as the first ply of built-up roofings. This sheets are also suitable for use as a vapor retarded under roof insulation or between multiple layers of roof insulation. The materials shall conform to the physical requirements, dimensions, and masses prescribed herein. The products shall not crack nor be too sticky as to cause damage upon being unrolled. The specimen shall also undergo testing to determine the following properties: breaking strength, moisture content, and pliability.
SCOPE
1.1 This specification covers asphalt impregnated and coated glass fiber base sheet, with or without perforations, for use as the first ply of the built-up roofing. When not perforated, this sheet is suitable for use as a vapor retarder, with a solid mopping of asphaltic material, under roof insulation or between multiple layers of roof insulation.
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 non-conformance with the standard.
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Designation:D4601/D4601M −04 (Reapproved 2012)
Standard Specification for
Asphalt-Coated Glass Fiber Base Sheet Used in Roofing
This standard is issued under the fixed designation D4601/D4601M; 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.
This standard has been approved for use by agencies of the Department of Defense.
´ NOTE—Units information was editorially corrected in June 2012.
1. Scope 5. Materials and Manufacture
1.1 This specification covers asphalt impregnated and 5.1 The mat shall be a thin, porous mat of uniformly
coated glass fiber base sheet, with or without perforations, for distributed glass fibers, with or without additional reinforcing
use as the first ply of the built-up roofing.When not perforated, strands of glass yarn, and bonded with a water-resistant
this sheet is suitable for use as a vapor retarder, with a solid resinous binder.
mopping of asphaltic material, under roof insulation or be-
5.2 Intheprocessofmanufacture,asinglethicknessofglass
tween multiple layers of roof insulation.
fiber mat shall be impregnated with hot asphalt, coated on one
1.2 The values stated in either SI units or inch-pound units or both sides with a hot asphaltic material, and permitted to be
are to be regarded separately as standard. The values stated in surfaced with mineral surfacing.
each system may not be exact equivalents; therefore, each
5.3 The impregnating and coating material shall be a hot-
system shall be used independently of the other. Combining
applied asphalt permitted to be compounded with a mineral
values from the two systems may result in non-conformance
stabilizer.
with the standard.
5.4 The base sheet may be faced with a kraft paper on the
2. Referenced Documents bottom side.
2.1 ASTM Standards:
6. Physical Requirements, Dimensions, and Masses
D146 Test Methods for Sampling and Testing Bitumen-
Saturated Felts and Woven Fabrics for Roofing and 6.1 Thematerialshallconformtothephysicalrequirements,
Waterproofing dimensions, and masses described in Table 1 and Table 2.It
D228 Test Methods for Sampling, Testing, and Analysis of may have small pin holes throughout the sheet.
Asphalt Roll Roofing, Cap Sheets, and Shingles Used in
6.2 Perforated material shall conform to the physical
Roofing and Waterproofing
requirements, dimensions, and masses described in Tables 1-3.
D1079 Terminology Relating to Roofing and Waterproofing
It may have small pin holes throughout the sheet.
3. Terminology 6.3 The finished product shall not crack nor be so sticky as
to cause tearing or other damage upon being unrolled at
3.1 Definitions—For definitions of terms used in this
temperatures between 4 and 60°C [40 and 140°F].
specification, refer to Terminology D1079.
4. Classification 7. Workmanship, Finish, and Appearance
4.1 Asphalt impregnated and coated glass fiber base sheet, 7.1 The finished material shall be uniformly impregnated
Type I and Type II, are covered by this specification. and coated with asphalt. It shall be free of visible defects such
as holes, ragged or untrue edges, breaks, cracks, tears, and
protrusions. This is not to exclude perforations for the specific
This specification is under the jurisdiction of ASTM Committee D08 on
purpose of providing for venting of gases during application or
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.04
on Felts, Fabrics and Bituminous Sheet Materials.
small pin holes.
Current edition approved May 1, 2012. Published June 2012. Originally
approved in 1986. Last previous edition approved in 2004 as D4601 – 04. DOI:
8. Sampling and Test Methods
10.1520/D4601_D4601M-04R12E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
8.1 Sample the material and determine the properties de-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
scribed in this specification in accordance with Test Methods
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. D228 unless otherwise indicated.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
D4601/D4601M−04 (2012)
A
TABLE 1 Physical Requirements
10. Rejection and Resubmittal
Description Type I Type II
10.1 Failure to Conform—Failure to conform to any of the
Breaking strength, minimum kN/m 3.9 [22] 7.7 [44]
[lbf/in.] longitudinal and transverse requirements as stated in this specification constitutes grounds
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation:D4601–04 Designation: D4601/D4601M – 04 (Reapproved 2012)
Standard Specification for
Asphalt-Coated Glass Fiber Base Sheet Used in Roofing
This standard is issued under the fixed designation D4601/D4601M; 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.
This standard has been approved for use by agencies of the Department of Defense.
´ NOTE—Units information was editorially corrected in June 2012.
1. Scope
1.1 This specification covers asphalt impregnated and coated glass fiber base sheet, with or without perforations, for use as the
first ply of the built-up roofing. When not perforated, this sheet is suitable for use as a vapor retarder, with a solid mopping of
asphaltic material, under roof insulation or between multiple layers of roof insulation.
1.2The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.
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 non-conformance with the standard.
2. Referenced Documents
2.1 ASTM Standards:
D146 Test Methods for Sampling and Testing Bitumen-Saturated Felts and Woven Fabrics for Roofing and Waterproofing
D228 Test Methods for Sampling, Testing, and Analysis of Asphalt Roll Roofing, Cap Sheets, and Shingles Used in Roofing
and Waterproofing
D1079 Terminology Relating to Roofing and Waterproofing
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, refer to Terminology D1079.
4. Classification
4.1 Asphalt impregnated and coated glass fiber base sheet, Type I and Type II, are covered by this specification.
5. Materials and Manufacture
5.1 The mat shall be a thin, porous mat of uniformly distributed glass fibers, with or without additional reinforcing strands of
glass yarn, and bonded with a water-resistant resinous binder.
5.2 In the process of manufacture, a single thickness of glass fiber mat shall be impregnated with hot asphalt, coated on one
or both sides with a hot asphaltic material, and permitted to be surfaced with mineral surfacing.
5.3 The impregnating and coating material shall be a hot-applied asphalt permitted to be compounded with a mineral stabilizer.
5.4 The base sheet may be faced with a kraft paper on the bottom side.
6. Physical Requirements, Dimensions, and Masses
6.1 The material shall conform to the physical requirements, dimensions, and masses described in Table 1 and Table 2. It may
have small pin holes throughout the sheet.
6.2 Perforatedmaterialshallconformtothephysicalrequirements,dimensions,andmassesdescribedinTables1-3.Itmayhave
small pin holes throughout the sheet.
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
and Fabrics.
Current edition approved Dec. 1, 2004. Published January 2005. Originally approved in 1986. Last previous edition approved in 1998 as D4601–98. DOI:
10.1520/D4601-04.on Felts, Fabrics and Bituminous Sheet Materials.
Current edition approved May 1, 2012. Published June 2012. Originally approved in 1986. Last previous edition approved in 2004 as D4601 – 04. DOI:
10.1520/D4601_D4601M-04R12E01.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
´1
D4601/D4601M – 04 (2012)
A
TABLE 1 Physical Requirements
Description Type I Type II
Breaking strength, minimum kN/m 3.9 (22) 7.7 (44)
(lbf/in.) longitudinal and transverse
Breaking strength, minimum kN/m 3.9 [22] 7.7 [44]
[lbf/in.] longitudinal and transverse
Pliability, 13 mm ( ⁄2 in.) radius
Pliability, 13 mm [ ⁄2 in.] radius
Maximum failures, 10 specimens 0 0
A
To prevent the asphalt glass fiber base sheet from slipping from between the
jawsofthetensiletestingmachine,insertathinstripofsoftgasketrubberbetween
the felt in each of the four jaw faces of the machine.
A
TABLE 2 Dimensions and Masses
Description Type I Type II
Width of roll, mm (in.) 914 (36) 6 0.7 % 914 (36) 6 0.7 %
Width of roll, mm [in.] 914 [36] 6 0.7 % 914 [36] 6 0.7 %
or or
as agreed between buyer and seller as agreed between buyer and seller
Area of roll as agreed between buyer and seller as agreed between buyer and seller
2 2
Net dry mass—coated sheet minimum g/m (lb/100 ft )
2 2
Net dry mass—coated sheet minimum g/m [lb/100 ft ]
Average of all rolls 654 (13.4) 756 (15.5)
Average of all rolls 654 [13.4] 756 [15.5]
Individual rolls 62
...
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