ASTM_D_4479_-_D_4479M_-_07_2018.pdf

Designation:D4479/D4479M07(Reapproved 2018)Standard Specification forAsphalt Roof CoatingsAsbestos-Free1This standard is issued under the fixed designation D4479/D4479M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.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.Scope1.1 This specification covers asbestos-free asphalt roof coat-ings of brushing or spraying consistency.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 The following precautionary caveat pertains only to thetest method portion,Section 8,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety,health,andenvironmental practices and determine the applicability ofregulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D312/D312M Specification for Asphalt Used in RoofingD449/D449M Specification forAsphalt Used in Dampproof-ing and WaterproofingD946/D946M Specification for Penetration-Graded AsphaltBinder for Use in Pavement ConstructionD6511/D6511M Test Methods for Solvent Bearing Bitumi-nous Compounds3.Classification3.1 Type I is made from asphalts characterized as self-healing,adhesive,and ductile,and conforming to the require-ments of Specification D312/D312M,Type I;SpecificationD449/D449M,Types I or II;or Specification D946/D946M.3.2 Type II is made from asphalts characterized by highsoftening point and relatively low ductility,and conforming tothe requirements of Specification D312/D312M Types II or III;or Specification D449/D449M,Type III.4.Materials and Manufacture4.1 Asphalt roof coatings shall consist of an asphalt base,volatile petroleum solvents,and mineral or other stabilizers,orboth,excluding asbestos fiber,mixed to a smooth,uniformconsistency suitable for application by squeegee,three-knotbrush,paint brush,roller,or by spraying.5.Composition5.1 Asphalt roof coatings complying with this specificationshall conform to the following composition limits:minmaxWater content,%.2.5Nonvolatile content,%50.Mineral and/or other stabilizers520Bitumen(asphalt),%40.6.Physical Requirements6.1 UniformityAfter a thoroughly stirred sample has stoodfor 72 h at room temperature 23 6 2C 73.4 6 3.6F in aclosed container,it shall show no separation of solvent orsettling that cannot be overcome by moderate stirring.6.2 ConsistencyThe roof coating shall be of a consistencythat will spread readily and permit application by squeegee,brush,roller or spray at the rate of 1.25 m2/litre 50 ft2/gal onprepared roofing,saturated felt,and metal surfaces at ambienttemperatures above 10C 50F.Consistency at 25C 77Fshall be between 50 and 400 Stormer s/100 revolutions.6.3 Behavior at 60C 140FThe roof coating shall showno evidence of blistering,and sag or slide shall be no greaterthan 6 mm 14in.Staining or absorption of the coating on thereverse side of the prepared roofing test panel shall not exceed5%of the coated area.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.05on Solvent-Bearing Bituminous Compounds for Roofing and Waterproofing.Current edition approved May 1,2018.Published June 2018.Originallyapproved in 1985.Last previous edition approved in 2012 as D4479/D4479M 07(2012)1.DOI:10.1520/D4479_D4479M-07R18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 6.4 Pliability at 0C 32FThere shall be no cracking orseparation of the roof coating from the metal