ASTM C1483/C1483M-17(2022)
(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 solar gains on buildings by reflecting solar radiation from roofs and walls. Radiation Control Coating (RCC) is a liquid applied material that cures to form a solid coating having a solar reflectance of at least 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 RCCs designed for exterior application for buildings.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems 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 responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C1483/C1483M −17 (Reapproved 2022)
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 Mastic Thermal Insulation Coatings
C461 Test Methods for Mastics and Coatings Used With
1.1 The purpose of this specification is to provide general
Thermal Insulation
requirements for products used to reduce solar gains on
C1371 Test Method for Determination of Emittance of
buildings by reflecting solar radiation from roofs and walls.
Materials Near Room Temperature Using Portable Emis-
Radiation Control Coating (RCC) is a liquid applied material
someters
that cures to form a solid coating having a solar reflectance of
D471 Test Method for Rubber Property—Effect of Liquids
at least 0.8 and an ambient temperature infrared emittance of at
D903 Test Method for Peel or Stripping Strength of Adhe-
least 0.8.
sive Bonds
1.2 This specification covers the physical and mechanical
D2370 Test Method for Tensile Properties of Organic Coat-
properties of liquid-applied RCCs designed for exterior appli-
ings
cation for buildings.
D2697 Test Method for Volume Nonvolatile Matter in Clear
1.3 The values stated in either SI units or inch-pound units or Pigmented Coatings
D3274 Test Method for Evaluating Degree of Surface Dis-
are to be regarded separately as standard. The values stated in
each system are not necessarily exact equivalents; therefore, figurement of Paint Films by Fungal or Algal Growth, or
Soil and Dirt Accumulation
each system shall be used independently of the other. Combin-
ing values from the two systems has the potential to result in E84 Test Method for Surface Burning Characteristics of
Building Materials
non-conformance with the standard.
E96/E96M Test Methods for Gravimetric Determination of
1.4 This standard does not purport to address all of the
Water Vapor Transmission Rate of Materials
safety concerns, if any, associated with its use. It is the
E349 Terminology Relating to Space Simulation
responsibility of the user of this standard to establish appro-
E903 Test Method for Solar Absorptance, Reflectance, and
priate safety, health, and environmental practices and deter-
Transmittance of Materials Using Integrating Spheres
mine the applicability of regulatory limitations prior to use.
E1175 Test Method for Determining Solar or Photopic
1.5 This international standard was developed in accor-
Reflectance, Transmittance, andAbsorptance of Materials
dance with internationally recognized principles on standard-
Using a Large Diameter Integrating Sphere
ization established in the Decision on Principles for the
G155 Practice for Operating XenonArc LampApparatus for
Development of International Standards, Guides and Recom-
Exposure of Materials
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
3. Terminology
2. Referenced Documents
3.1 Definitions—Terminology C168 and E349 shall apply to
this specification.
2.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation
3.2 Definitions of Terms Specific to This Standard:
C419 Practice for Making and Curing Test Specimens of
3.2.1 radiation control coating (RCC), n—a radiation con-
trol coating is a material that is designed to have a high solar
reflectance (above 0.8) and a high infrared emittance (above
This specification is under the jurisdiction of ASTM Committee C16 on
0.8) for long wavelength radiation.
Thermal Insulation and is the direct responsibility of Subcommittee C16.21 on
Reflective Insulation.
3.2.2 solar reflectance, n—solarreflectanceisthefractionof
Current edition approved Oct. 1, 2022 Published October 2022. Originally
incident solar radiation that is reflected.
approved in 2004. Last previous edition approved in 2017 as C1483/C1483M – 17.
DOI: 10.1520/C1483_C1483M-17R22.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 4. Significance and Use
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.1 It is recognized that the solar reflectance of RCCs will
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. be reduced by soiling, which is caused by the accumulation of
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C1483/C1483M − 17 (2022)
dirt,dustandothercontaminantsonthesurface.Thesoiling,on 6.8 Flame Retardancy—The flame retardancy of the cured
the roof, will differ from location to location and from coatingshallbedeterminedinaccordancewith8.8andshallbe
environment to environment. It is possible that soiling rates are tested on a substrate typical of final installation. Flame spread
affected by the slope of the surface, the roughness of the and smoke development shall be no greater than that required
surface, the characteristics of the dust in the air, the dust by local code requirement.
contentoftheairandthedegreeofgrowthofmildewandother
6.9 Fungi Resistance—The fungi resistance of the cured
organismsonthesurface.Lowslopes,roughsurfaces,dustyair
coating shall be determined and found acceptable in accor-
and persistent moisture and conditions of high humidity are all
dance with 8.9.
conducive to soiling. At this time there are insufficient obser-
6.10 Water Absorption—Water absorption of the cured coat-
vations available to predict the amount of soiling for a given
ing shall be determined in accordance with 8.10.
locale or the effect of the soiling on solar reflectance. Nor have
any test procedures been developed to determine the ease with
6.11 Cured Sample Thickness—The cured sample thickness
which the RCCs can be cleaned and the degree to which the
shall be determined in accordance with 8.11.
solar reflectance can be restored. It is suggested that users
6.12 Outdoor Durability—The outdoor durability shall be
examine the potential for soiling at th
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