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ASTM D2824/D2824M-18(2024)

(Specification)

Standard Specification for Aluminum-Pigmented Asphalt Roof Coatings, Nonfibered, and Fibered without Asbestos

Standard Specification for Aluminum-Pigmented Asphalt Roof Coatings, Nonfibered, and Fibered without Asbestos

ABSTRACT
This specification covers three types of aluminum-pigmented asphalt roof coatings suitable for application to roofing or masonry surfaces by brush or spray. Type I is nonfibered, Type II is fibered with asbestos, and Type III is fibered other than asbestos. The coatings shall adhere to chemical requirements such as composition limits for water, nonvolatile matter, metallic aluminum, and insolubility in CS2. They shall also meet physical requirements as to uniformity, consistency, and luminous reflectance.
SCOPE
1.1 This specification covers asphalt-based, aluminum-pigmented roof coatings suitable for application to roofing or masonry surfaces by brush or spray.  
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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

General Information

Status
Published
Publication Date
30-Apr-2024
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 D2824/D2824M-18 - Standard Specification for Aluminum-Pigmented Asphalt Roof Coatings, Nonfibered, and Fibered without Asbestos
Effective Date
01-May-2024
Referred By
ASTM D3805/D3805M-16(2023) - Standard Guide for Application of Aluminum-Pigmented Asphalt Roof Coatings
Effective Date
01-May-2024

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ASTM D2824/D2824M-18(2024) - Standard Specification for Aluminum-Pigmented Asphalt Roof Coatings, Nonfibered, and Fibered without AsbestosASTM D2824/D2824M-18(2024) - Standard Specification for Aluminum-Pigmented Asphalt Roof Coatings, Nonfibered, and Fibered without Asbestos
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ASTM D2824/D2824M-18(2024) - Standard Specification for Aluminum-Pigmented Asphalt Roof Coatings, Nonfibered, and Fibered without Asbestos
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Standards Content (Sample)


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: D2824/D2824M − 18 (Reapproved 2024)
Standard Specification for
Aluminum-Pigmented Asphalt Roof Coatings, Nonfibered,
and Fibered without Asbestos
This standard is issued under the fixed designation D2824/D2824M; 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 U.S. Department of Defense.
1. Scope D4798/D4798M Practice for Accelerated Weathering Test
Conditions and Procedures for Bituminous Materials
1.1 This specification covers asphalt-based, aluminum-
(Xenon-Arc Method)
pigmented roof coatings suitable for application to roofing or
D6511/D6511M Test Methods for Solvent Bearing Bitumi-
masonry surfaces by brush or spray.
nous Compounds
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
3. Classification
each system are not necessarily exact equivalents; therefore, to
3.1 Type I—Nonfibered, containing no fiber.
ensure conformance with the standard, each system shall be
used independently of the other, and values from the two
3.2 Type III—Fibered, containing no asbestos fiber.
systems shall not be combined.
1.3 The following precautionary caveat pertains only to the 4. Materials and Manufacture
test method portion, Section 8, of this specification: This
4.1 Asphalt-based, aluminum-pigmented roof coatings shall
standard does not purport to address all of the safety concerns,
consist of an asphalt base, volatile petroleum solvents, and a
if any, associated with its use. It is the responsibility of the user
leafing type of aluminum pigment conforming to the require-
of this standard to establish appropriate safety, health, and
ments of Specification D962, with or without fiber added. They
environmental practices and determine the applicability of
shall be mixed to a smooth, uniform consistency suitable for
regulatory limitations prior to use.
application by brush, roller, or by spraying.
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
5. Composition
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 5.1 Asphalt-based, aluminum-pigmented roof coatings
mendations issued by the World Trade Organization Technical complying with this specification shall conform to the follow-
Barriers to Trade (TBT) Committee. ing composition limits:
Type I Type III
2. Referenced Documents
Water, max, % 0.3 0.3
2.1 ASTM Standards:
Nonvolatile matter (NVM), min, % 40 40
C1549 Test Method for Determination of Solar Reflectance
Insoluble in CS , max, % of NVM 40 50
Metallic aluminum, min, % 11 9
Near Ambient Temperature Using a Portable Solar Reflec-
tometer
6. Physical Requirements
D962 Specification for Aluminum Powder and Paste Pig-
ments for Paints
6.1 Uniformity—After a thoroughly stirred sample has stood
for 72 h at room temperature 23 6 2 °C [73.4 6 °F] in a closed
container, it shall show no separation of solvent or settling that
This specification is under the jurisdiction of ASTM Committee D08 on
cannot be overcome by moderate stirring.
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.05
on Solvent-Bearing Bituminous Compounds for Roofing and Waterproofing.
6.2 Consistency—The roof coating shall be of a consistency
Current edition approved May 1, 2024. Published May 2024. Originally
that will spread readily
...

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Section  
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This specification describes the required properties and test methods for high-solids content, cold liquid-applied elastomeric membrane with integral wearing surface for waterproofing building decks not subject to hydrostatic pressure. This specification does not include specific requirements for skid resistance or fire retardance, although both may be important in specific uses. The properties to which the materials will be tested upon for conformance are as follows: weight loss of base coat; low temperature crack bridging; adhesion-in-peel to cement mortar and plywood substrates after water immersion; chemical resistance after water, ethylene glycol, and mineral spirits exposure; weathering resistance, recovery from elongation, tensile retention, and elongation retention; abrasion resistance; and stability.
SCOPE
1.1 This specification describes the required properties and test methods for a cold liquid-applied elastomeric membrane for waterproofing building decks not subject to hydrostatic pressure. The specification applies only to a membrane system that has an integral wearing surface. This specification does not include specific requirements for skid resistance or fire retardance, although both may be important in specific uses.  
1.2 The type of membrane system described in this specification is used for pedestrian and vehicular traffic and in high-abrasion applications. The membrane may be single or multi-component, and may consist of one or more coats (for example base coat, top coat, etc.). The coat(s) may be built to the desired thickness in one or more applications. One coat (base coat) provides the primary waterproofing function and normally comprises the major amount of organic material in the membrane. The function of the top coat(s) is to resist wear and weather. Aggregate may be used as a component of the membrane system, as all or part of a course, to increase wear and skid resistance.  
1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.  
1.4 Test methods in this specification require a minimum 0.5 mm [0.020 in.] base coat dry film thickness. Actual thickness required for a particular application and the use of aggregate in top coats shall be established by the membrane manufacturer.  
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1.7 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.

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