ASTM C1483/C1483M-04(2009)
(Specification)Standard Specification for Exterior Solar Radiation Control Coatings on Buildings
Standard Specification for Exterior Solar Radiation Control Coatings on Buildings
ABSTRACT
This specification provides the general physical and mechanical requirements for liquid-applied exterior solar radiation control coatings designed for exterior application on buildings or other structures for the purpose of reducing thermal loads on buildings by reflecting solar radiation from roofs and walls. The specification also includes the testing procedures by which the acceptability of the material may be determined. The physical and mechanical properties to which the coatings shall be tested and accordingly adhere to are total solid weight, solid volume, solar reflectance, infrared emittance, elongation, adhesion, water vapor permeance, flame retardancy, fungi resistance, water absorption, cured sample thickness, and outdoor durability.
SCOPE
1.1 The purpose of this specification is to provide general requirements for products used to reduce thermal loads on buildings by reflecting solar radiation from roofs and walls. Radiation control coating (RCC) is a liquid applied coating having a solar reflectance of 0.8 and an ambient temperature infrared emittance of at least 0.8.
1.2 This specification covers the physical and mechanical properties of liquid-applied radiation control coatings (RCCs) designed for exterior application on buildings or other structures, where ambient air temperatures range form -34 to 54°C [-30 to 130°F]. The specification also includes the testing procedures by which the acceptability of the material may be determined.
1.3 The products that comply with this specification may be used for other applications and have other properties not covered by this specification. In such cases, it is advisable to check other specifications that address the applications of interest.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: C1483/C1483M −04 (Reapproved 2009)
Standard Specification for
Exterior Solar Radiation Control Coatings on Buildings
This standard is issued under the fixed designation C1483/C1483M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope C419 Practice for Making and Curing Test Specimens of
Mastic Thermal Insulation Coatings
1.1 The purpose of this specification is to provide general
C461 Test Methods for Mastics and Coatings Used With
requirements for products used to reduce thermal loads on
Thermal Insulation
buildings by reflecting solar radiation from roofs and walls.
C1371 Test Method for Determination of Emittance of
Radiation control coating (RCC) is a liquid applied coating
Materials Near Room Temperature Using Portable Emis-
having a solar reflectance of 0.8 and an ambient temperature
someters
infrared emittance of at least 0.8.
D471 Test Method for Rubber Property—Effect of Liquids
1.2 This specification covers the physical and mechanical
D903 Test Method for Peel or Stripping Strength of Adhe-
properties of liquid-applied radiation control coatings (RCCs)
sive Bonds
designed for exterior application on buildings or other
D2370 Test Method for Tensile Properties of Organic Coat-
structures, where ambient air temperatures range form -34 to
ings
54°C [-30 to 130°F].The specification also includes the testing
D2697 Test Method for Volume Nonvolatile Matter in Clear
procedures by which the acceptability of the material may be
or Pigmented Coatings
determined.
D3274 Test Method for Evaluating Degree of Surface Dis-
1.3 The products that comply with this specification may be
figurement of Paint Films by Fungal or Algal Growth, or
used for other applications and have other properties not
Soil and Dirt Accumulation
covered by this specification. In such cases, it is advisable to
E84 Test Method for Surface Burning Characteristics of
check other specifications that address the applications of
Building Materials
interest.
E96/E96M Test Methods for Water Vapor Transmission of
Materials
1.4 The values stated in either SI units or inch-pound units
E349 Terminology Relating to Space Simulation
are to be regarded separately as standard. The values stated in
E903 Test Method for Solar Absorptance, Reflectance, and
each system may not be exact equivalents; therefore, each
Transmittance of Materials Using Integrating Spheres
system shall be used independently of the other. Combining
(Withdrawn 2005)
values from the two systems may result in non-conformance
E1175 Test Method for Determining Solar or Photopic
with the standard.
Reflectance, Transmittance, andAbsorptance of Materials
1.5 This standard does not purport to address all of the
Using a Large Diameter Integrating Sphere
safety concerns, if any, associated with its use. It is the
G155 Practice for Operating XenonArc LightApparatus for
responsibility of the user of this standard to establish appro-
Exposure of Non-Metallic Materials
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
3. Terminology
3.1 Definitions—Terminology C168 and E349 shall apply to
2. Referenced Documents
2 this specification.
2.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation 3.2 Definitions of Terms Specific to This Standard:
3.2.1 radiation control coating (RCC), n—a radiation con-
This specification is under the jurisdiction of ASTM Committee C16 on trol coating is a material that is designed to have a high solar
Thermal Insulation and is the direct responsibility of Subcommittee C16.21 on
reflectance (above 0.8) and a high infrared emittance (above
Reflective Insulation.
0.8) for long wavelength radiation.
Current edition approved Nov. 1, 2009 Published December 2009. Originally
approved in 2004 as C1483–04. Last previous edition approved in 2004 as
3.2.2 solar reflectance, n—solarreflectanceisthefractionof
C1483–04. DOI: 10.1520/C1483-04R09.
incident solar radiation that is reflected.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C1483/C1483M − 04 (2009)
4. Significance and Use 6.7 Water Vapor Permeance—The water vapor permeance
of the cured coating shall be determined in accordance with
4.1 It is recognized that the solar reflectance of RCCs will
8.7.Thewatervaporpermeancevaluesshallbereportedforthe
be reduced by soiling, which is caused by the accumulation of
thickness tested but in no case shall be greater than 20 perms.
dirt,dustandothercontaminantsonthesurface.Thesoiling,on
the roof, will differ from location to location and from
6.8 Flame Retardancy—The flame retardancy of the cured
environment to environment. It is possible that soiling rates are coatingshallbedeterminedinaccordancewith8.8andshallbe
affected by the slope of the surface, the roughness of the
tested on a substrate typical of final installation. Flame spread
surface, the characteristics of the dust in the air, the dust and smoke development shall be no greater than that required
contentoftheairandthedegreeofgrowthofmildewandother
by local code requirement.
organismsonthesurface.Lowslopes,roughsurfaces,dustyair
6.9 Fungi Resistance—The fungi resistance of the cured
and persistent moisture and conditions of high humidity are all
coating shall be determined and found acceptable in accor-
conducive to soiling. At this time there are insufficient obser-
dance with 8.9.
vations available to predict the amount of soiling for a given
6.10 Water Absorption—Water absorption of the cured coat-
locale or the effect of the soiling on solar reflectance. Nor have
any test procedures been developed to determine the ease with ing shall be determined in accordance with 8.10.
which the RCCs can be cleaned and the degree
...
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. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C1483–04 Designation: C1483/C1483M – 04 (Reapproved 2009)
Standard Specification for
Exterior Solar Radiation Control Coatings on Buildings
This standard is issued under the fixed designation C1483/C1483M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 The purpose of this specification is to provide general requirements for products used to reduce thermal loads on buildings
by reflecting solar radiation from roofs and walls. Radiation control coating (RCC) is a liquid applied coating having a solar
reflectance of 0.8 and an ambient temperature infrared emittance of at least 0.8.
1.2 This specification covers the physical and mechanical properties of liquid-applied radiation control coatings (RCCs)
designed for exterior application on buildings or other structures, where ambient air temperatures range form -34 to 54°C (-30[-30
to 130°F).130°F]. The specification also includes the testing procedures by which the acceptability of the material may be
determined.
1.3 The products that comply with this specification may be used for other applications and have other properties not covered
by this specification. In such cases, it is advisable to check other specifications that address the applications of interest.
1.4
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation
C419 Practice for Making and Curing Test Specimens of Mastic Thermal Insulation Coatings
C461 Test Methods for Mastics and Coatings Used With Thermal Insulation
C1371 Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers
D471 Test Method for Rubber PropertyEffect of Liquids
D903 Test Method for Peel or Stripping Strength of Adhesive Bonds
D2370 Test Method for Tensile Properties of Organic Coatings
D2697 Test Method for Volume Nonvolatile Matter in Clear or Pigmented Coatings
D3274 TestMethodforEvaluatingDegreeofSurfaceDisfigurementofPaintFilmsbyFungalorAlgalGrowth,orSoilandDirt
Accumulation
E84 Test Method for Surface Burning Characteristics of Building Materials
E96/E96M Test Methods for Water Vapor Transmission of Materials
E349 Terminology Relating to Space Simulation
E903 Test Method for Solar Absorptance, Reflectance, and Transmittance of Materials Using Integrating Spheres
E1175 Test Method for Determining Solar or Photopic Reflectance,Transmittance, andAbsorptance of Materials Using a Large
Diameter Integrating Sphere
G155 Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials
This specification is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.21 on Reflective
Insulation.
Current edition approved Feb. 1, 2004. Published March 2004. Originally approved in 2000 as C1483–00. DOI: 10.1520/C1483-04.
Current edition approved Nov. 1, 2009 Published December 2009. Originally approved in 2004 as C1483–04. Last previous edition approved in 2004 as C1483–04. DOI:
10.1520/C1483-04R09.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C1483/C1483M – 04 (2009)
3. Terminology
3.1 Definitions—Terminology C168 and E349 shall apply to this specification.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 radiation control coating (RCC), n—a radiation control coating is a material that is designed to have a high solar
reflectance (above 0.8) and a high infrared emittance (above 0.8) for long wavelength radiation.
3.2.2 solar reflectance, n—solar reflectance is the fraction of incident solar radiation that is reflected.
4. Significance and Use
4.1 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. The soiling, on the roof, will differ from location to location and from environment
to environment. It is possible that soiling rates are affected by the slope of the surface, the roughness of the surface, the
characteristics of the dust in the air, the dust content of the air and the degree of growth of mildew and other organisms on the
surface. Low slopes, rough surfaces, dusty air and persistent moisture and conditions of high humidity are all conducive to soiling.
Atthistimethereareinsufficientobservationsavailabletopredicttheamountofsoilingforagivenlocaleortheeffectofthesoiling
on solar reflectance. Nor have any test procedures been developed to determine the ease with which the RCCs can be cleaned and
the degree to which the solar reflectance can be restored. It is suggested that users examine the potential for soiling at the
application site and determine if the cleaning methods suggested by the manufacturer are likely to be adequate to maintain solar
reflectance at an acceptable level, for the type of soiling expected
5. Materials and Manufacture
5.1 Composition—The manufactured product shall be in liquid form, suitable for application to exterior surfaces by brushing,
rolling, or spraying. The product shall be a elastomeric or resinous material, to which various pigments, dilutants, and o
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