ASTM D8464/D8464M-23
(Specification)Standard Specification for Cold-Applied Coal Tar for Roofing, Waterproofing, and Dampproofing
Standard Specification for Cold-Applied Coal Tar for Roofing, Waterproofing, and Dampproofing
SCOPE
1.1 This specification covers a mixture of processed coal tar base with or without mineral fillers or polymer modification suitable for brush, spray, and squeegee application to coal tar built-up and coal tar modified bitumen membrane roofing, flashings, dampproofing, insulations, and waterproofing.
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 nonconformance with the standard.
1.3 The following precautionary caveat pertains only to the test method portion, Section 7, 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
- 28-Feb-2023
- Technical Committee
- D08 - Roofing and Waterproofing
Relations
- Effective Date
- 01-May-2018
- Effective Date
- 01-Jul-2011
Overview
ASTM D8464/D8464M-23 is the standard specification for cold-applied coal tar used in roofing, waterproofing, and dampproofing applications. Developed by ASTM International, this specification covers a mixture of processed coal tar base, with or without mineral fillers or polymer modification, designed for convenient application by brush, spray, or squeegee. This standard supports both SI and inch-pound units, ensuring global applicability in both metric and imperial jurisdictions.
The specification is tailored for use with coal tar built-up and coal tar modified bitumen membrane roofing, flashings, insulation systems, dampproofing, and waterproofing. As a product intended for building envelope protection, it ensures consistent quality and reliable performance in moisture barrier solutions.
Key Topics
- Material Composition: Outlines requirements for processed coal tar mixtures with or without mineral fillers and polymer modification. Strict limits are specified for water content, nonvolatile content, and mineral stabilizer amounts to ensure product consistency and performance.
- Physical Properties: Details uniformity and consistency parameters for cold-applied coal tar, ensuring suitability for application on prepared surfaces at specified ambient temperatures and guaranteeing ease of application with various tools (squeegee, brush, spray).
- Dual Measurement Systems: Recognizes both SI and inch-pound measurement units, making the standard globally relevant and reducing errors during cross-border specification.
- Sampling and Testing: References ASTM D6511/D6511M as the guiding test method for evaluating the composition and physical requirements of solvent-bearing bituminous compounds in these applications.
- Safety Considerations: Advises users to implement appropriate safety, health, and environmental practices when handling or specifying the product.
Applications
The ASTM D8464/D8464M-23 standard is integral to projects involving:
- Coal Tar Built-Up Roofing: Ensures the coal tar product supports multilayered roofing systems designed for superior waterproofing and durability.
- Modified Bitumen Membrane Roofing: Specifies the suitability of cold-applied coal tar for use with polymer-modified membranes, enhancing flexibility and resilience.
- Dampproofing and Waterproofing: Essential for applications on foundations, walls, and other structural elements where resistance to water ingress is critical.
- Flashings and Insulations: Addresses requirements for use on flashings and insulation systems to prevent water penetration at joints, edges, and penetrations.
Construction professionals, contractors, roofing manufacturers, and facility managers rely on ASTM D8464/D8464M-23 to ensure their cold-applied coal tar products deliver high performance over time and comply with recognized quality benchmarks.
Related Standards
Below are some standards closely associated with ASTM D8464/D8464M-23:
- ASTM D6511/D6511M - Test Methods for Solvent-Bearing Bituminous Compounds for Roofing and Waterproofing. Referenced for testing procedures in composition and property evaluation.
- ASTM D8 - Terminology Relating to Roofing and Waterproofing. Provides definitions and language consistency across industry documents.
- ASTM D41 - Standard Specification for Asphalt Primer Used in Roofing, Dampproofing, and Waterproofing. Related to surface preparation and membrane adhesion.
- ASTM D3019 - Specifies asphalt-based coatings for similar applications, offering an alternative to coal tar formulations.
Keywords: cold-applied coal tar, roofing, waterproofing, dampproofing, ASTM D8464/D8464M-23, bitumen membrane, standard specification
Use ASTM D8464/D8464M-23 to establish a robust specification for cold-applied coal tar products, facilitating peace of mind, code compliance, and long-lasting building envelope protection in roofing and moisture barrier applications.
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Frequently Asked Questions
ASTM D8464/D8464M-23 is a technical specification published by ASTM International. Its full title is "Standard Specification for Cold-Applied Coal Tar for Roofing, Waterproofing, and Dampproofing". This standard covers: SCOPE 1.1 This specification covers a mixture of processed coal tar base with or without mineral fillers or polymer modification suitable for brush, spray, and squeegee application to coal tar built-up and coal tar modified bitumen membrane roofing, flashings, dampproofing, insulations, and waterproofing. 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 nonconformance with the standard. 1.3 The following precautionary caveat pertains only to the test method portion, Section 7, 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.
SCOPE 1.1 This specification covers a mixture of processed coal tar base with or without mineral fillers or polymer modification suitable for brush, spray, and squeegee application to coal tar built-up and coal tar modified bitumen membrane roofing, flashings, dampproofing, insulations, and waterproofing. 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 nonconformance with the standard. 1.3 The following precautionary caveat pertains only to the test method portion, Section 7, 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.
ASTM D8464/D8464M-23 is classified under the following ICS (International Classification for Standards) categories: 91.100.50 - Binders. Sealing materials. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM D8464/D8464M-23 has the following relationships with other standards: It is inter standard links to ASTM D6511/D6511M-18, ASTM D6511/D6511M-06(2011)e1. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM D8464/D8464M-23 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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: D8464/D8464M − 23
Standard Specification for
Cold-Applied Coal Tar for Roofing, Waterproofing, and
Dampproofing
This standard is issued under the fixed designation D8464/D8464M; 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 stabilizers, or polymer modification or both, excluding asbestos
fiber, mixed to a smooth, uniform consistency suitable for
1.1 This specification covers a mixture of processed coal tar
application by squeegee, three-knot brush, or by spraying.
base with or without mineral fillers or polymer modification
suitable for brush, spray, and squeegee application to coal tar
4. Composition
built-up and coal tar modified bitumen membrane roofing,
flashings, dampproofing, insulations, and waterproofing.
4.1 Cold-applied coal tar liquid complying with this speci-
fication shall conform to the following composition limits:
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in min max
Water content, % . . . 2.5
each system may not be exact equivalents; therefore, each
Nonvolatile content, % 50 . . .
system shall be used independently of the other. Combining
Mineral and/or other stabilizers . . . 20
values from the two systems may result in nonconformance
with the standard.
5. Physical Requirements
1.3 The following precautionary caveat pertains only to the
5.1 Uniformity—After a thoroughly stirred sample has stood
test method portion, Section 7, of this specification: This
for 72 h at room temperature 23 6 2 °C [73.4 6 3.6 °F] in a
standard does not purport to address all of the safety concerns,
closed container, it shall show no separation of solvent or
if any, associated with its use. It is the responsibility of the user
settling that cannot be overcome by moderate stirring.
of this standard to establish appropriate safety, health, and
5.2 Consistency—The coal tar liquid shall be of a consis-
environmental practices and determine the applicability of
tency that will spread readily and permit application by
regulatory limitations prior to use.
squeegee, three-knot brush, or spray at the rate of 1.25 m /L
1.4 This international standard was developed in accor-
[50 ft /gal] on prepared roofing, saturated felt, and metal
dance with internationally recognized principles on standard-
surfaces at ambient temperatures above 10 °C [50 °F]. Consis-
ization established in the Decision on Principles for the
tency (Brookfield) at 25 °C [77 °F] No. 3 spindle at 20 RPM
Development of International Standards, Guides and Recom-
shall be between 15 000 and 19 000 CPS.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
6. Sampling
2. Referenced Documents
6.1 See Section 4 on Sampling of Test Methods D6511/
2.1 ASTM Standards:
D6511M.
D6511/D6511M Test Methods for Solvent Bearing Bitumi-
nous
...
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