1、Designation: C1483/C1483M 04 (Reapproved 2009)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,
2、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 general requirements for products
3、 used to reduce thermal loadssolar gains onbuildings by reflecting solar radiation from roofs and walls. Radiation control coatingControl Coating (RCC) is a liquid appliedmaterial that cures to form a solid coating having a solar reflectance of at least 0.8 and an ambient temperature infrared emitta
4、nceof at least 0.8.1.2 This specification covers the physical and mechanical properties of liquid-applied radiation control coatings (RCCs) RCCsdesigned for exterior application on buildings or other structures, where ambient air temperatures range form -34 to 54C -30 to130F. The specification also
5、includes the testing procedures by which the acceptability of the material may be determined. forbuildings.1.3 The products that comply with this specification may be used for other applications and have other properties not coveredby this specification. In such cases, it is advisable to check other
6、 specifications that address the applications of interest.1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem mayare not benecessarily exact equivalents; therefore, each system shall be used independently of the othe
7、r. Combiningvalues from the two systems may has the potential to result in non-conformance with the standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety
8、 safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Developm
9、ent of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationC419 Practice for Making and Curing Test Specimens of Mastic Thermal
10、Insulation CoatingsC461 Test Methods for Mastics and Coatings Used With Thermal InsulationC1371 Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable EmissometersD471 Test Method for Rubber PropertyEffect of LiquidsD903 Test Method for Peel or Stripping Strengt
11、h of Adhesive BondsD2370 Test Method for Tensile Properties of Organic CoatingsD2697 Test Method for Volume Nonvolatile Matter in Clear or Pigmented CoatingsD3274 Test Method for Evaluating Degree of Surface Disfigurement of Paint Films by Fungal orAlgal Growth, or Soil and DirtAccumulationE84 Test
12、Method for Surface Burning Characteristics of Building MaterialsE96/E96M Test Methods for Water Vapor Transmission of MaterialsE349 Terminology Relating to Space SimulationE903 Test Method for Solar Absorptance, Reflectance, and Transmittance of Materials Using Integrating Spheres1 This specificatio
13、n is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.21 on ReflectiveInsulation.Current edition approved Nov. 1, 2009Sept. 1, 2017 Published December 2009October 2017. Originally approved in 2004 as 2004. C148304. Last previous
14、editionapproved in 20042009 as C1483C1483/C1483M 04 (2009).04. DOI: 10.1520/C1483-04R09.10.1520/C1483_C1483M-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the s
15、tandards Document Summary page on the ASTM website.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. Becauseit may not be technically possible to adequately depict all changes accur
16、ately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United Stat
17、es1E1175 Test Method for Determining Solar or Photopic Reflectance, Transmittance, andAbsorptance of Materials Using a LargeDiameter Integrating SphereG155 Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials3. Terminology3.1 DefinitionsTerminology C168 and E349 sh
18、all apply to this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 radiation control coating (RCC), na radiation control coating is a material that is designed to have a high solarreflectance (above 0.8) and a high infrared emittance (above 0.8) for long wavelength radiation.3.
19、2.2 solar reflectance, nsolar reflectance is the fraction of incident solar radiation that is reflected.4. Significance and Use4.1 It is recognized that the solar reflectance of RCCs will be reduced by soiling, which is caused by the accumulation of dirt,dust and other contaminants on the surface. T
20、he soiling, on the roof, will differ from location to location and from environmentto environment. It is possible that soiling rates are affected by the slope of the surface, the roughness of the surface, thecharacteristics of the dust in the air, the dust content of the air and the degree of growth
21、 of mildew and other organisms on thesurface. Low slopes, rough surfaces, dusty air and persistent moisture and conditions of high humidity are all conducive to soiling.At this time there are insufficient observations available to predict the amount of soiling for a given locale or the effect of the
22、 soilingon solar reflectance. Nor have any test procedures been developed to determine the ease with which the RCCs can be cleaned andthe degree to which the solar reflectance can be restored. It is suggested that users examine the potential for soiling at theapplication site and determine if the cl
23、eaning methods suggested by the manufacturer are likely to be adequate to maintain solarreflectance at an acceptable level, for the type of soiling expected5. Materials and Manufacture5.1 CompositionThe manufactured product shall be in liquid form, suitable for application to exterior surfaces by br
24、ushing,rolling, or spraying. The product shall be a elastomeric or resinous material, to which various pigments, dilutants, and otheradditives have been added to give the desired properties.6. Physical and Mechanical Properties6.1 Total SolidsThe total solids of the liquid product shall not be less
25、than 25 %, by weight, and shall be determined inaccordance with 8.1.6.2 Solids VolumeThe total solids in the liquid product shall not be less than 25 %, by volume, as determined in accordancewith 8.2.6.3 Solar ReflectanceThe solar reflectance of the cured coating shall be determined in accordance wi
26、th 8.3. The solarreflectance of the cured coating shall be no less than 0.8.6.4 Infrared EmittanceInfrared emittance, at ambient temperature, shall be determined in accordance with 8.4. The ambienttemperature infrared emittance of the cured coating shall be no less than 0.8.6.5 ElongationThe elongat
27、ion of the cured coating shall be determined in accordance with 8.5.6.5.1 The elongation of the cured coating shall be greater than 200 % and 100 % at testing temperatures of 25 and -18C 77and 0F respectively.6.5.2 The elongation of the coating after UV exposure shall not be less than 80 % of the va
28、lues obtained at 25 and -18C 77and 0F on the cured coating.6.6 AdhesionThe adhesion of the coating shall be determined in accordance with 8.6. The adhesion of the cured coating shallbe reported for each of the substrates tested.6.7 Water Vapor PermeanceThe water vapor permeance of the cured coating
29、shall be determined in accordance with 8.7. Thewater vapor permeance values shall be reported for the thickness tested but in no case shall be greater than 20 perms.6.8 Flame RetardancyThe flame retardancy of the cured coating shall be determined in accordance with 8.8 and shall be testedon a substr
30、ate typical of final installation. Flame spread and smoke development shall be no greater than that required by local coderequirement.6.9 Fungi ResistanceThe fungi resistance of the cured coating shall be determined and found acceptable in accordance with8.9.6.10 Water AbsorptionWater absorption of
31、the cured coating shall be determined in accordance with 8.10.6.11 Cured Sample ThicknessThe cured sample thickness shall be determined in accordance with 8.11.6.12 Outdoor DurabilityThe outdoor durability shall be determined in accordance with 8.12.C1483/C1483M 1727. Sample Preparation7.1 SamplingS
32、amples for testing shall be taken from the original containers immediately after stirring the material to auniform condition.7.2 Cured Sample PreparationFor tests to be performed on specimen of cured (dry) product, the thickness of the specimenwill be no less than the manufacturers recommended cured
33、 coating thickness. The cured coating specimen shall be prepared ona substrate suitable for the intended test. Example of these substrates are metal, stucco or black asphalt.7.3 Cured values shall be determined in accordance with 8.11.8. Test Methods8.1 Total Solids (by Weight)Determine the total so
34、lids of the wet product in accordance with Test Methods C461, Section 8.8.2 Solids VolumeDetermine the solids volume of the wet product in accordance with Test Method D2697.8.3 Solar ReflectanceThe solar reflectance shall be determined on samples in the cured condition placed on low solarreflectance
35、 substrates in accordance with either Test Method E903 or E1175. This may be done with a solar reflectometer.8.4 Total Hemispherical Emittance Total hemispherical emittance, at ambient temperature, shall be determined on curedsamples placed on low emittance substrates in accordance with Test Method
36、C1371.8.5 ElongationElongation tests shall be performed on cured samples before and after 3000-h exposure to ultraviolet (UV)radiation in accordance with Test Method D2370 and Practice G155 (without water).8.6 AdhesionAdhesion tests shall be performed on cured samples in accordance with Test Method
37、D903.8.7 Water Vapor PermeanceDetermine the water vapor permeance on cured samples in accordance with Test MethodsE96/E96M, desiccant method.8.8 FlammabilityDetermine the flammability of cured samples in accordance with Test Method E84.8.9 Fungi ResistanceDetermine the fungi resistance of the cured
38、material in accordance with Test Method D3274.8.10 Water AbsorptionDetermine the water absorption of the cured product in accordance with Test Method D471.8.11 Cured Samples ThicknessDetermine cured sample thickness in accordance with Practice C419.8.12 Outdoor DurabilityDetermine the outdoor durabi
39、lity in accordance with Practice G155.9. Inspection and Rejection9.1 Inspection and rejection of material shall be agreed upon between the purchaser and the seller as part of the purchasecontract.10. Packaging and Package Marking10.1 PackagingUnless otherwise agreed or specified, materials shall be
40、packaged in the manufacturers standard commercialcontainers.10.2 MarkingThe marking shall be clear and legible. Unless otherwise specified, each container shall be marked with the dateof manufacture, material name, ASTM designation, manufacturers name or trademark, and coverage of material in contai
41、ner.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 item mentionedin this standard. Users of this standard are expressly advised that
42、 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 committee and must be reviewed every five years andif not revised, either reapprov
43、ed 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 meeting of theresponsible technical committee, which you may attend. If you feel
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