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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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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 Property--Effect 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 Test Method for Evaluating Degree of Surface Disfigurement of Paint Films by Fungal or Algal Growth, or Soil and Dirt 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, and Absorptance of Materials Using a Large Diameter Integrating Sphere
G155 Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials
ICS Number Code 91.120.99 (Other standards related to protection of and in buildings)
UNSPSC Code 30000000(Structures and Building and Construction and Manufacturing Components and Supplies)