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ASTM D4479-07

(Specification)

Standard Specification for Asphalt Roof Coatings—Asbestos-Free

Standard Specification for Asphalt Roof Coatings—Asbestos-Free

ABSTRACT
This specification covers the properties and requirements for two types of asbestos-free asphalt roof coatings consisting of an asphalt base, volatile petroleum solvents, and mineral or other stabilizers, or both, mixed to a smooth, uniform consistency suitable for application by squeegee, three-knot brush, paint brush, roller, or by spraying. Type I is made from asphalts characterized as self-healing, adhesive, and ductile, while Type II is made from asphalts characterized by high softening point and relatively low ductility. The coatings shall conform to specified composition limits for water, nonvolatile matter, minerals and/or other stabilizers, and bitumen (asphalt). They shall also meet physical requirements as to uniformity, consistency, and pliability and behavior at given temperatures.
SCOPE
1.1 This specification covers asbestos-free asphalt roof coatings of brushing or spraying consistency.
1.2 The following precautionary 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-Apr-2007
ICS
91.100.50 - Binders. Sealing materials
Technical Committee
D08 - Roofing and Waterproofing
Drafting Committee
D08.05 - Solvent-Bearing Bituminous Compounds for Roofing and Waterproofing
Current Stage
Ref Project

Relations

Replaces
ASTM D4479-00(2006) - Standard Specification for Asphalt Roof Coatings - Asbestos-Free
Effective Date
01-May-2007
Replaced By
ASTM D4479/D4479M-07(2012)e1 - Standard Specification for Asphalt Roof Coatings<char: emdash>Asbestos-Free
Effective Date
01-May-2012

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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: 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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1.1 This specification covers prefabricated, self-adhesive, glass fiber fabric reinforced, polymer-modified asphalt roll roofing, with granule surfacing, designed for steep slope applications. These products use polymer modifiers in their top and bottom coatings. These products have an adhesive bottom layer which is exposed by removal of a peel-away protective release paper or film sheet.  
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