ASTM D6380/D6380M-03(2022)

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: D6380/D6380M −03 (Reapproved 2022)
Standard Specification for
Asphalt Roll Roofing (Organic Felt)
This standard is issued under the fixed designation D6380/D6380M; 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 D224 Specification for Smooth-SurfacedAsphalt Roll Roof-
ing (Organic Felt) (Withdrawn 2002)
1.1 This specification covers asphalt roofing in sheet form,
D228/D228M Test Methods for Sampling, Testing, and
in widths agreed upon between the purchaser and the producer/
Analysis of Asphalt Roll Roofing, Cap Sheets, and
supplier, composed of asphalt-saturated organic felt coated on
Shingles Used in Roofing and Waterproofing
both sides with asphalt. Class M and WS rolls are surfaced on
D249 Specification for Asphalt Roll Roofing (Organic Felt)
the (exposed) weather side with mineral granules, except for
Surfaced with Mineral Granules (Withdrawn 2002)
any selvage. Class S rolls are surfaced with powdered talc,
D371 Specification for Asphalt Roll Roofing (Organic Felt)
mica, or other fine mineral matter to prevent sticking.
Surfaced with Mineral Granules; Wide Selvage (With-
1.2 The values stated in either SI units or inch-pound units
drawn 2002)
are to be regarded separately as standard. The values stated in
D1079 Terminology Relating to Roofing and Waterproofing
each system may not be exact equivalents; therefore, each
D3019/D3019M Specification for Lap Cement Used with
system shall be used independently of the other. Combining
Asphalt Roll Roofing, Non-Fibered, and Fibered
values from the two systems may result in nonconformance
D4977/D4977M Test Method for Granule Adhesion to
with the standard.
Mineral-Surfaced Roofing by Abrasion
1.3 This standard does not purport to address all of the E96/E96M Test Methods for Gravimetric Determination of
safety concerns, if any, associated with its use. It is the
Water Vapor Transmission Rate of Materials
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
3.1 Definitions—Refer to Terminology D1079 for defini-
1.4 This international standard was developed in accor-
tions of terms used in this specification.
dance with internationally recognized principles on standard-
4. Classification
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
4.1 Class S (smooth) rolls shall be surfaced with fine
mendations issued by the World Trade Organization Technical
mineral matter to prevent sticking.
Barriers to Trade (TBT) Committee.
4.1.1 Type III—Minimum net mass per unit area of roofing,
2 2
2495 g/m [51.1 lb/100 ft ].
2. Referenced Documents
4.1.2 Type IV—Minimum net mass per unit area of roofing,
2 2
1943 g/m [39.8 lb/100 ft ].
2.1 ASTM Standards:
D146/D146M Test Methods for Sampling and Testing
4.2 Class M (mineral) rolls shall be surfaced on the weather
Bitumen-Saturated Felts and Woven Fabrics for Roofing
side with mineral granules, except for any selvage.
and Waterproofing
4.2.1 Type II—Minimum net mass of granule-surfaced
2 2
portion, 3490 g/m [71.5 lb/100 ft ].
4.3 Class WS (wide selvage) rolls shall be surfaced on the
This specification is under the jurisdiction of ASTM Committee D08 on
weather side with mineral granules for approximately half the
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.02
width.
on Steep Roofing Products and Assemblies.
4.3.1 Type III—Minimum net mass per unit area, 1733 g/m
The materials covered in this standard were previously covered by three separate
roll roofing material standards: Specifications D224, D249, and D371.
[35.5 lb/100 ft ].
Current edition approved Nov. 1, 2022. Published November 2022. Originally 2
4.3.2 Type IV—Minimum net mass per unit area, 2090 g/m
approved in 1999. Last previous edition approved in 2018 as D6380/D6380M – 03
[42.8 lb/100 ft ].
(2018). DOI: 10.1520/D6380_D6380M-03R22.
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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D6380/D6380M − 03 (2022)
5. Materials and Manufacture 6.4 Pliability at 25 °C [77 °F]—At least eight strips out of
ten from the granule-surfaced portion of the sheet shall not
5.1 In the process of manufacture, a single thickness of dry
crackwhentestedinaccordancewiththeappropriatesectionof
organic felt shall first be saturated with asphalt. A coating
Test Methods D228/D228M. The samples shall be tested using
asphalt, compounded with or without a fine mineral stabilizer
a mandrel with a radius of 12.7 mm [ ⁄2 in.] for Class S roofing
insoluble in water, shall be applied to one or both sides of the
and 19 mm [ ⁄4 in.] radius for Class M and WS roll roofing.
sheet. Class S rolls shall be surfaced on one side with a suitable
material to prevent sticking in the roll. Class M and WS rolls
6.5 Behavior on Heating to 80 °C [176 °F] for 2 h—There
shall be covered on the weather side with mineral granules,
shall be no more than 1.5 % volatile loss; there shall be no
except for any selvage; the reverse side shall be covered with
flowing, sagging, blistering, or absorption of the asphalt
a suitable material to prevent sticking in the roll.
coating; and any granular surfacing shall not slide more than
2mm[ ⁄16 in.] when tested in accordance with the appropriate
5.2 The felt shall be roofing felt primarily composed of
section of Test Methods D228/D228M.
organic fibers. The surface of the felt shall be uniformly and
relatively smooth. Upon splitting or tearing on the bias, the felt
7. Dimensions, Mass, and Permissible Variations
shall appear reasonably free of lumps or particles of foreign
substances.
7.1 Width—The material shall be put up in rolls and shall be
914 mm [36 in.] wide, 60.7 %. Other widths agreed upon
6. Physical Properties
between the purchaser and the producer/supplier shall not be
6.1 Class S rolls shall conform to the breaking strength and
prohibited.
water permeance requirements prescribed in Table 1.
7.2 Selvage—Class M rolls are available without a selvage,
6.2 Upon being unrolled, the finished product shall not
with a 51 66mm[2 6 ⁄4 in.] selvage, or with a 102 66mm
crack at ambient temperatures above 10 °C [50 °F] nor be so
[4 6 ⁄4 in.] selvage. For Class WS rolls, the coated and
sticky at any temperature below 60 °C [140 °F] as to cause
granule-surfaced portion of the weather side shall have a
tearing or material damage.
uniform, minimum width of 432 6 6 mm [17 6 ⁄4 in.] for the
6.3 Class M rolls with a 102 mm [4 in.] wide selvage shall standard 914 mm [36 in.] wide sheet, or as agreed upon
meet the lap strength requirements with Type II or Type III between the purchaser and the producer/supplier. For other
cement specified in Specification D3019/D3019M. Class WS roll widths,
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