ASTM D1079-20
(Terminology)Standard Terminology Relating to Roofing and Waterproofing
Standard Terminology Relating to Roofing and Waterproofing
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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: D1079 −20
Standard Terminology Relating to
1
Roofing and Waterproofing
This standard is issued under the fixed designation D1079; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Referenced Documents anionic emulsion, n—an emulsion in which the emulsifying
2 system establishes a predominance of negative charges on
1.1 ASTM Standards:
the discontinuous phase.
C33/C33MSpecification for Concrete Aggregates
C591Specification for Unfaced Preformed Rigid Cellular
application rate, n—the quantity (mass, volume or thickness)
Polyisocyanurate Thermal Insulation
of material applied per unit area.
C1289Specification for Faced Rigid Cellular Polyisocyanu-
artificial weathering, v—exposure to conditions, which may
rate Thermal Insulation Board
be cyclic, involving temperature, relative humidity, radiant
D312/D312MSpecification for Asphalt Used in Roofing
energy,and/oranyotherconditionsorpollutantsfoundinthe
D450/D450M Specification for Coal-Tar Pitch Used in
atmosphere in various geographical areas, which may accel-
Roofing, Dampproofing, and Waterproofing
erate changes in properties of materials over those of natural
D698Test Methods for Laboratory Compaction Character-
3
weather conditions.
istics of Soil Using Standard Effort (12,400 ft-lbf/ft (600
3
kN-m/m ))
asbestos, n—a group of natural fibrous impure silicate mate-
D1557Test Methods for Laboratory Compaction Character-
rials.
3
istics of Soil Using Modified Effort (56,000 ft-lbf/ft
3
(2,700 kN-m/m )) asphalt, n—a dark brown to black cementitious material in
which the predominating constituents are bitumens that
D6136/D6136MTest Method for Kerosine Number of Un-
occur in nature or are obtained in petroleum processing.
saturated (Dry) Felt by Vacuum Method
asphalt, air blown, n—an asphalt produced by blowing air
2. Terminology
throughmoltenasphaltatanelevatedtemperaturetoraiseits
2.1 Definitions:
softening point and modify other properties.
accelerated weathering, v—the exposure of a specimen to a
asphaltene, n—a high molecular weight hydrocarbon fraction
specifiedtestenvironmentforaspecifiedtimewiththeintent
precipitated from asphalt by a designated paraffinic naphtha
of producing, in a shorter time period, effects similar to
solvent at a specified temperature and solvent-asphalt ratio.
actual weathering.
DISCUSSION—The asphaltene fraction should be identified by the
aggregate, n—(1) crushed stone, crushed slag, or water-worn temperature and solvent-asphalt ratio used.
gravel used for surfacing a built-up roof; (2) any granular
asphalt felt, n—an asphalt-saturated felt.
mineral material.
asphaltite, n—a natural asphalt found below ground level.
alligatoring, v—the cracking of the surfacing bitumen on a
built-up roof, producing a pattern of cracks similar to an
asphalt mastic, n—a mixture of asphaltic material and graded
alligator’s hide; the cracks may not extend through the
mineral aggregate that can be poured when heated, but
surfacing bitumen.
requires mechanical manipulation to apply.
asphalt rock (rock asphalt), n—a naturally occurring rock
formation, usually limestone or sandstone, containing
1
This terminology is under the jurisdiction of ASTM Committee D08 on
throughout its mass a minor amount of asphalt.
RoofingandWaterproofingandisthedirectresponsibilityofSubcommitteeD08.01
on Nomenclature, Definitions and Editorial.
asphalt roof cement, n—a trowelable mixture of asphalt,
Current edition approved May 1, 2020. Published June 2020. Originally
solvents, mineral stabilizers, fillers or fibers, or both.
approved in 1950. Last previous edition approved in 2018 as D1079–18. DOI:
10.1520/D1079-20.
2 asphalt roof cement, n—see flashing cement.
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
asphalt, steam blown, n—an asphalt produced by blowing
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. steam through molten asphalt to modify its properties.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D1079 − 20
backnailing, v—the practice of blind-nailing roofing felts to a built-up roofing, n—a continuous, semiflexible membrane
substrate in addition to hot-mopping to prevent slippage. consisting of plies of saturated felts, coated felts, fabrics or
ma
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: D1079 − 18 D1079 − 20
Standard Terminology Relating to
1
Roofing and Waterproofing
This standard is issued under the fixed designation D1079; 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
ε NOTE—Editorially added parts of speech throughout in February 2019.
1. Referenced Documents
2
1.1 ASTM Standards:
C33/C33M Specification for Concrete Aggregates
C591 Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
C1289 Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board
D312/D312M Specification for Asphalt Used in Roofing
D450/D450M Specification for Coal-Tar Pitch Used in Roofing, Dampproofing, and Waterproofing
3 3
D698 Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/ft (600 kN-m/m ))
3
D1557 Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft (2,700
3
kN-m/m ))
3
D2822/D2822M Specification for Asphalt Roof Cement, Asbestos-Containing (Withdrawn 2016)
D4586/D4586M Specification for Asphalt Roof Cement, Asbestos-Free
D6136/D6136M Test Method for Kerosine Number of Unsaturated (Dry) Felt by Vacuum Method
2. Terminology
2.1 Definitions:
accelerated weathering, v—the exposure of a specimen to a specified test environment for a specified time with the intent of
producing, in a shorter time period, effects similar to actual weathering.
aggregate, n—(1) crushed stone, crushed slag, or water-worn gravel used for surfacing a built-up roof; (2) any granular mineral
material.
alligatoring, v—the cracking of the surfacing bitumen on a built-up roof, producing a pattern of cracks similar to an alligator’s
hide; the cracks may not extend through the surfacing bitumen.
anionic emulsion, n—an emulsion in which the emulsifying system establishes a predominance of negative charges on the
discontinuous phase.
application rate, n—the quantity (mass, volume or thickness) of material applied per unit area.
artificial weathering, v—exposure to conditions, which may be cyclic, involving temperature, relative humidity, radiant energy,
and/or any other conditions or pollutants found in the atmosphere in various geographical areas, which may accelerate changes
in properties of materials over those of natural weather conditions.
asbestos, n—a group of natural fibrous impure silicate materials.
asphalt, n—a dark brown to black cementitious material in which the predominating constituents are bitumens that occur in nature
or are obtained in petroleum processing.
asphalt, air blown, n—an asphalt produced by blowing air through molten asphalt at an elevated temperature to raise its softening
point and modify other properties.
1
This terminology is under the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.01 on
Nomenclature, Definitions and Editorial.
Current edition approved Dec. 15, 2018May 1, 2020. Published January 2019June 2020. Originally approved in 1950. Last previous edition approved in 20162018 as
D1079 – 16.D1079 – 18. DOI: 10.1520/D1079-18E01.10.1520/D1079-20.
2
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 ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D1079 − 20
asphaltene, n—a high molecular weight hydrocarbon fraction precipitated from asphalt by a designated paraffinic naphtha solvent
at a specified temperature and solvent-asphalt ratio.
DISCUSSION—
The asphaltene fraction should be identified by the temperature and solvent-asphalt ratio used.
asphalt felt, n—an asphalt-saturated felt.
asphaltite, n—a natural asphalt found below ground level.
asphalt mastic, n—a mixture of asphaltic material and graded mineral aggregate that can be poured when heated, but requires
mechanical manipulation to apply.
asphalt rock (rock asphalt), n—a naturally occurring rock formation, usually limestone or sandstone, containing throughout its
mass a minor amount of asphalt.
asphalt roof cement, n—a trowelable mixture of
...
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