ASTM_C_1483_-_C_1483M_-_04_2009.pdf

Designation:C1483/C1483M04(Reapproved 2009)Standard Specification forExterior Solar Radiation Control Coatings on Buildings1This standard is issued under the fixed designation C1483/C1483M;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.1.Scope1.1 The purpose of this specification is to provide generalrequirements for products used to reduce thermal loads onbuildings by reflecting solar radiation from roofs and walls.Radiation control coating(RCC)is a liquid applied coatinghaving a solar reflectance of 0.8 and an ambient temperatureinfrared emittance of at least 0.8.1.2 This specification covers the physical and mechanicalproperties of liquid-applied radiation control coatings(RCCs)designed for exterior application on buildings or otherstructures,where ambient air temperatures range form-34 to54C-30 to 130F.The specification also includes the testingprocedures by which the acceptability of the material may bedetermined.1.3 The products that comply with this specification may beused for other applications and have other properties notcovered by this specification.In such cases,it is advisable tocheck other specifications that address the applications ofinterest.1.4 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.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC419 Practice for Making and Curing Test Specimens ofMastic Thermal Insulation CoatingsC461 Test Methods for Mastics and Coatings Used WithThermal InsulationC1371 Test Method for Determination of Emittance ofMaterials Near Room Temperature Using Portable Emis-sometersD471 Test Method for Rubber PropertyEffect of LiquidsD903 Test Method for Peel or Stripping Strength of Adhe-sive BondsD2370 Test Method for Tensile Properties of Organic Coat-ingsD2697 Test Method for Volume Nonvolatile Matter in Clearor Pigmented CoatingsD3274 Test Method for Evaluating Degree of Surface Dis-figurement of Paint Films by Fungal or Algal Growth,orSoil and Dirt AccumulationE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE96/E96M Test Methods for Water Vapor Transmission ofMaterialsE349 Terminology Relating to Space SimulationE903 Test Method for Solar Absorptance,Reflectance,andTransmittance of Materials Using Integrating Spheres(Withdrawn 2005)3E1175 Test Method for Determining Solar or PhotopicReflectance,Transmittance,and Absorptance of MaterialsUsing a Large Diameter Integrating SphereG155 Practice for Operating Xenon Arc Light Apparatus forExposure of Non-Metallic Materials3.Terminology3.1 DefinitionsTerminology C168 and E349 shall apply tothis specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 radiation control coating(RCC),na radiation con-trol coating is a material that is designed to have a high solarreflectance(above 0.8)and a high infrared emittance(above0.8)for long wavelength radiation.3.2.2 solar reflectance,nsolar reflectance is the fraction ofincident solar radiation that is reflected.1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.21 onReflective Insulation.Current edition approved Nov.1,2009 Published December 2009.Originallyapproved in 2004 as C148304.Last previous edition approved in 2004 asC148304.DOI:10.1520/C1483-04R09.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Significance and Use4.1 It is recognized that the solar reflectance of RCCs willbe reduced by soiling,which is caused by the accumulation ofdirt,dust and other contaminants on the surface.The soiling,onthe roof,will differ from location to location and fromenvironment to environment.It is possible that soiling rates areaffected by the slope of the surface,the roughness of thesurface,the characteristics of the dust in the air,the dustcontent of the air and the degree of gr