1、Designation: C1483/C1483M 04 (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
2、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
3、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 o
4、f liquid-applied radiation control coatings (RCCs)designed for exterior application on buildings or other struc-tures, where ambient air temperatures range form -34 to 54C-30 to 130F. The specification also includes the testingprocedures by which the acceptability of the material may bedetermined.1.
5、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
6、 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 add
7、ress 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 Terminol
8、ogy 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-somete
9、rsD471 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 o
10、f SurfaceDisfigurement of Paint Films by Fungal or Algal Growth,or Soil 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 A
11、bsorptance, Reflectance, andTransmittance of Materials Using Integrating Spheres3E1175 Test Method for Determining Solar or PhotopicReflectance, Transmittance, and Absorptance of MaterialsUsing a Large Diameter Integrating SphereG155 Practice for Operating XenonArc LightApparatus forExposure of Non-
12、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)
13、 and a high infrared emittance (above0.8) for long wavelength radiation.3.2.2 solar reflectance, nsolar reflectance is the fractionof incident solar radiation that is reflected.1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility o
14、f 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, orconta
15、ct ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.1Copyright ASTM International, 100 Barr Har
16、bor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.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 diff
17、er 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 growth of mildew and otherorganisms on the
18、 surface. Low slopes, rough surfaces, dusty airand persistent moisture and conditions of high humidity are allconducive to soiling. At this time there are insufficient obser-vations available to predict the amount of soiling for a givenlocale or the effect of the soiling on solar reflectance. Nor ha
19、veany test procedures been developed to determine the ease withwhich the RCCs can be cleaned and the degree to which thesolar reflectance can be restored. It is suggested that usersexamine the potential for soiling at the application site anddetermine if the cleaning methods suggested by the manufac
20、-turer are likely to be adequate to maintain solar reflectance atan acceptable level, for the type of soiling expected5. Materials and Manufacture5.1 CompositionThe manufactured product shall be inliquid form, suitable for application to exterior surfaces bybrushing, rolling, or spraying. The produc
21、t shall be a elasto-meric or resinous material, to which various pigments, dilut-ants, and other additives have been added to give the desiredproperties.6. Physical and Mechanical Properties6.1 Total SolidsThe total solids of the liquid product shallnot be less than 25 %, by weight, and shall be det
22、ermined inaccordance with 8.1.6.2 Solids VolumeThe total solids in the liquid productshall not be less than 25 %, by volume, as determined inaccordance with 8.2.6.3 Solar ReflectanceThe solar reflectance of the curedcoating shall be determined in accordance with 8.3. The solarreflectance of the cure
23、d coating shall be no less than 0.8.6.4 Infrared EmittanceInfrared emittance, at ambienttemperature, shall be determined in accordance with 8.4. Theambient temperature infrared emittance of the cured coatingshall be no less than 0.8.6.5 ElongationThe elongation of the cured coating shallbe determine
24、d in accordance with 8.5.6.5.1 The elongation of the cured coating shall be greaterthan 200 % and 100 % at testing temperatures of 25 and -18C77 and 0F respectively.6.5.2 The elongation of the coating after UV exposure shallnot be less than 80 % of the values obtained at 25 and -18C77 and 0F on the
25、cured coating.6.6 AdhesionThe adhesion of the coating shall be deter-mined in accordance with 8.6. The adhesion of the curedcoating shall be reported for each of the substrates tested.6.7 Water Vapor PermeanceThe water vapor permeanceof the cured coating shall be determined in accordance with8.7. Th
26、e water vapor permeance values shall be reported for thethickness tested but in no case shall be greater than 20 perms.6.8 Flame RetardancyThe flame retardancy of the curedcoating shall be determined in accordance with 8.8 and shall betested on a substrate typical of final installation. Flame spread
27、and smoke development shall be no greater than that requiredby local code requirement.6.9 Fungi ResistanceThe fungi resistance of the curedcoating shall be determined and found acceptable in accor-dance with 8.9.6.10 Water AbsorptionWater absorption of the cured coat-ing shall be determined in accor
28、dance with 8.10.6.11 Cured Sample ThicknessThe cured sample thicknessshall be determined in accordance with 8.11.6.12 Outdoor DurabilityThe outdoor durability shall bedetermined in accordance with 8.12.7. Sample Preparation7.1 SamplingSamples for testing shall be taken from theoriginal containers im
29、mediately after stirring the material to auniform condition.7.2 Cured Sample PreparationFor tests to be performedon specimen of cured (dry) product, the thickness of thespecimen will be no less than the manufacturers recommendedcured coating thickness. The cured coating specimen shall beprepared on
30、a substrate suitable for the intended test. Exampleof these substrates are metal, stucco or black asphalt.7.3 Cured values shall be determined in accordance with8.11.8. Test Methods8.1 Total Solids (by Weight)Determine the total solids ofthe wet product in accordance with Test Methods C461,Section 8
31、.8.2 Solids VolumeDetermine the solids volume of the wetproduct in accordance with Test Method D2697.8.3 Solar ReflectanceThe solar reflectance shall be deter-mined on samples in the cured condition placed on low solarreflectance substrates in accordance with either Test MethodE903 or E1175. This ma
32、y be done with a solar reflectometer.8.4 Total Hemispherical Emittance Total hemisphericalemittance, at ambient temperature, shall be determined oncured samples placed on low emittance substrates in accor-dance with Test Method C1371.8.5 ElongationElongation tests shall be performed oncured samples
33、before and after 3000-h exposure to ultraviolet(UV) radiation in accordance with Test Method D2370 andPractice G155 (without water).8.6 AdhesionAdhesion tests shall be performed on curedsamples in accordance with Test Method D903.8.7 Water Vapor PermeanceDetermine the water vaporpermeance on cured s
34、amples in accordance with Test MethodsE96/E96M, desiccant method.8.8 FlammabilityDetermine the flammability of curedsamples in accordance with Test Method E84.8.9 Fungi ResistanceDetermine the fungi resistance ofthe cured material in accordance with Test Method D3274.8.10 Water AbsorptionDetermine t
35、he water absorption ofthe cured product in accordance with Test Method D471.8.11 Cured Samples ThicknessDetermine cured samplethickness in accordance with Practice C419.C1483/C1483M 04 (2009)28.12 Outdoor DurabilityDetermine the outdoor durabilityin accordance with Practice G155.9. Inspection and Re
36、jection9.1 Inspection and rejection of material shall be agreed uponbetween the purchaser and the seller as part of the purchasecontract.10. Packaging and Package Marking10.1 PackagingUnless otherwise agreed or specified, ma-terials shall be packaged in the manufacturers standard com-mercial contain
37、ers.10.2 MarkingThe marking shall be clear and legible.Unless otherwise specified, each container shall be markedwith the date of manufacture, material name, ASTM designa-tion, manufacturers name or trademark, and coverage ofmaterial in container.11. Keywords11.1 emittance; radiation control coating
38、; solar reflectance;solids volume; total solidsASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights,
39、and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revi
40、sion of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you
41、shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be o
42、btained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).C1483/C1483M 04 (2009)3
