ASTM D4479-07

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D4479 – 07
Standard Specification for
1
Asphalt Roof Coatings—Asbestos-Free
This standard is issued under the fixed designation D4479; 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.
1. Scope 4. Materials and Manufacture
1.1 Thisspecificationcoversasbestos-freeasphaltroofcoat- 4.1 Asphalt roof coatings shall consist of an asphalt base,
ings of brushing or spraying consistency. volatile petroleum solvents, and mineral or other stabilizers, or
1.2 The following precautionary caveat pertains only to the both, excluding asbestos fiber, mixed to a smooth, uniform
test method portion, Section 8, of this specification: This consistency suitable for application by squeegee, three-knot
standard does not purport to address all of the safety concerns, brush, paint brush, roller, or by spraying.
if any, associated with its use. It is the responsibility of the user
5. Composition
of this standard to establish appropriate safety and health
5.1 Asphalt roof coatings complying with this specification
practices and determine the applicability of regulatory limita-
tions prior to use. shall conform to the following composition limits:
min max
2. Referenced Documents
Water content, % . 2.5
Nonvolatile content, % 50 .
2
2.1 ASTM Standards:
Mineral and/or other stabilizers 5 20
D312 Specification for Asphalt Used in Roofing Bitumen (asphalt), % 40 .
D449 Specification for Asphalt Used in Dampproofing and
6. Physical Requirements
Waterproofing
6.1 Uniformity—After a thoroughly stirred sample has
D946 Specification for Penetration-GradedAsphalt Cement
stood for 72 h at room temperature 23 6 2°C (73.4 6 3.6°F)
for Use in Pavement Construction
in a closed container, it shall show no separation of solvent or
D6511 Test Methods for Solvent Bearing Bituminous Com-
settling that cannot be overcome by moderate stirring.
pounds
6.2 Consistency—The roof coating shall be of a consistency
3. Classification
that will spread readily and permit application by squeegee,
2 2
brush, roller or spray at the rate of 1.25 m /litre (50 ft /gal) on
3.1 Type I is made from asphalts characterized as self-
prepared roofing, saturated felt, and metal surfaces at ambient
healing, adhesive, and ductile, and conforming to the require-
temperatures above 10°C (50°F). Consistency at 25°C (77°F)
ments of Specification D312, Type I; Specification D449,
shall be between 50 and 400 Stormer s/100 revolutions.
Types I or II; or Specification D946.
6.3 Behavior at 60°C (140°F)—The roof coating shall show
3.2 Type II is made from asphalts characterized by high
no evidence of blistering, and sag or slide shall be no greater
softening point and relatively low ductility, and conforming to
1
than 6 mm ( ⁄4 in.). Staining or absorption of the coating on the
the requirements of Specification D312 Types II or III; or
reverse side of the prepared roofing test panel shall not exc
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