1、Designation: C1483/C1483M 17Standard 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
2、 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 solar gains onbuil
3、dings by reflecting solar radiation from roofs and walls.Radiation Control Coating (RCC) is a liquid applied materialthat cures to form a solid coating having a solar reflectance ofat least 0.8 and an ambient temperature infrared emittance of atleast 0.8.1.2 This specification covers the physical an
4、d mechanicalproperties of liquid-applied RCCs designed for exterior appli-cation for buildings.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system are not necessarily exact equivalents; therefore,each system shall be
5、used independently of the other. Combin-ing values from the two systems has the potential to result innon-conformance with the standard.1.4 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 es
6、tablish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principl
7、es 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:2C168 Terminology Relating to Thermal InsulationC419 Practice for Making and Curing Test Specimens
8、 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
9、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 A
10、ccumulationE84 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 SpheresE1
11、175 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 ap
12、ply 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 sol
13、ar reflectance, nsolar reflectance is the fraction ofincident solar radiation that is reflected.4. Significance and Use4.1 It is recognized that the solar reflectance of RCCs willbe reduced by soiling, which is caused by the accumulation of1This specification is under the jurisdiction of ASTM Commit
14、tee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.21 onReflective Insulation.Current edition approved Sept. 1, 2017 Published October 2017. Originallyapproved in 2004. Last previous edition approved in 2009 as C1483/C1483M 04(2009). DOI: 10.1520/C1483_C1483M-17.2For r
15、eferenced 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, W
16、est 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
17、Trade Organization Technical Barriers to Trade (TBT) Committee.1dirt, 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 roughnes
18、s 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 surface. Low slopes, rough surfaces, dusty airand persistent moisture and conditions of high humidity are allconducive to soiling. At this time there a
19、re insufficient obser-vations available to predict the amount of soiling for a givenlocale or the effect of the soiling on solar reflectance. Nor haveany test procedures been developed to determine the ease withwhich the RCCs can be cleaned and the degree to which thesolar reflectance can be restore
20、d. It is suggested that usersexamine the potential for soiling at the application site anddetermine if the cleaning methods suggested by the manufac-turer are likely to be adequate to maintain solar reflectance atan acceptable level, for the type of soiling expected5. Materials and Manufacture5.1 Co
21、mpositionThe manufactured product shall be inliquid form, suitable for application to exterior surfaces bybrushing, rolling, or spraying. The product shall be a elasto-meric or resinous material, to which various pigments,dilutants, and other additives have been added to give thedesired properties.6
22、. Physical and Mechanical Properties6.1 Total SolidsThe total solids of the liquid product shallnot be less than 25 %, by weight, and shall be determined inaccordance with 8.1.6.2 Solids VolumeThe total solids in the liquid productshall not be less than 25 %, by volume, as determined inaccordance wi
23、th 8.2.6.3 Solar ReflectanceThe solar reflectance of the curedcoating shall be determined in accordance with 8.3. The solarreflectance of the cured coating shall be no less than 0.8.6.4 Infrared EmittanceInfrared emittance, at ambienttemperature, shall be determined in accordance with 8.4. Theambien
24、t temperature infrared emittance of the cured coatingshall be no less than 0.8.6.5 ElongationThe elongation of the cured coating shallbe determined 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 re
25、spectively.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 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
26、each of the substrates tested.6.7 Water Vapor PermeanceThe water vapor permeanceof the cured coating shall be determined in accordance with8.7. The 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 retar
27、dancy of the curedcoating shall be determined in accordance with 8.8 and shall betested on a substrate typical of final installation. Flame spreadand smoke development shall be no greater than that requiredby local code requirement.6.9 Fungi ResistanceThe fungi resistance of the curedcoating shall b
28、e determined and found acceptable in accor-dance with 8.9.6.10 Water AbsorptionWater absorption of the cured coat-ing shall be determined in accordance with 8.10.6.11 Cured Sample ThicknessThe cured sample thicknessshall be determined in accordance with 8.11.6.12 Outdoor DurabilityThe outdoor durabi
29、lity shall bedetermined in accordance with 8.12.7. Sample Preparation7.1 SamplingSamples for testing shall be taken from theoriginal containers immediately after stirring the material to auniform condition.7.2 Cured Sample PreparationFor tests to be performedon specimen of cured (dry) product, the t
30、hickness of thespecimen will be no less than the manufacturers recommendedcured coating thickness. The cured coating specimen shall beprepared on a substrate suitable for the intended test. Exampleof these substrates are metal, stucco or black asphalt.7.3 Cured values shall be determined in accordan
31、ce with8.11.8. Test Methods8.1 Total Solids (by Weight)Determine the total solids ofthe wet product in accordance with Test Methods C461,Section 8.8.2 Solids VolumeDetermine the solids volume of the wetproduct in accordance with Test Method D2697.8.3 Solar ReflectanceThe solar reflectance shall be d
32、eter-mined on samples in the cured condition placed on low solarreflectance substrates in accordance with either Test MethodE903 or E1175. This may be done with a solar reflectometer.8.4 Total Hemispherical Emittance Total hemisphericalemittance, at ambient temperature, shall be determined oncured s
33、amples placed on low emittance substrates in accor-dance with Test Method C1371.8.5 ElongationElongation tests shall be performed oncured samples before and after 3000-h exposure to ultraviolet(UV) radiation in accordance with Test Method D2370 andPractice G155 (without water).8.6 AdhesionAdhesion t
34、ests shall be performed on curedsamples in accordance with Test Method D903.8.7 Water Vapor PermeanceDetermine the water vaporpermeance on cured samples in accordance with Test MethodsE96/E96M, desiccant method.8.8 FlammabilityDetermine the flammability of curedsamples in accordance with Test Method
35、 E84.C1483/C1483M 1728.9 Fungi ResistanceDetermine the fungi resistance of thecured material in accordance with Test Method D3274.8.10 Water AbsorptionDetermine the water absorption ofthe cured product in accordance with Test Method D471.8.11 Cured Samples ThicknessDetermine cured samplethickness in
36、 accordance with Practice C419.8.12 Outdoor DurabilityDetermine the outdoor durabilityin accordance with Practice G155.9. Inspection and Rejection9.1 Inspection and rejection of material shall be agreed uponbetween the purchaser and the seller as part of the purchasecontract.10. Packaging and Packag
37、e Marking10.1 PackagingUnless otherwise agreed or specified, ma-terials shall be packaged in the manufacturers standard com-mercial containers.10.2 MarkingThe marking shall be clear and legible.Unless otherwise specified, each container shall be markedwith the date of manufacture, material name, AST
38、Mdesignation, manufacturers name or trademark, and coverageof material in container.11. Keywords11.1 emittance; radiation control coating; solar reflectance;solids volume; total solidsASTM International takes no position respecting the validity of any patent rights asserted in connection with any it
39、em mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, 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 com
40、mittee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a
41、meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you 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 Driv
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