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Accession Number DE2013-1029244
Title Effectiveness of Cool Roof Coatings with Ceramic Particles.
Publication Date 2013
Media Count 18p
Personal Author A. Desjarlais E. Brehob J. Atchley
Abstract Liquid applied coatings promoted as cool roof coatings, including several with ceramic particles, were tested at Oak Ridge National Laboratory (ORNL), Oak Ridge, Tenn., for the purpose of quantifying their thermal performances. Solar reflectance measurements were made for new samples and aged samples using a portable reflectometer (ASTM C1549, Standard Test Method for Determination of Solar Reflectance Near Ambient Temperature Using a Portable Solar Reflectometer) and for new samples using the integrating spheres method (ASTM E903, Standard Test Method for Solar Absorptance, Reflectance, and Transmittance of Materials Using Integrating Spheres). Thermal emittance was measured for the new samples using a portable emissometer (ASTM C1371, Standard Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers). Thermal conductivity of the coatings was measured using a FOX 304 heat flow meter (ASTM C518, Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus). The surface properties of the cool roof coatings had higher solar reflectance than the reference black and white material, but there were no significant differences among coatings with and without ceramics.
Keywords Ceramics
Cool roofs
Energy efficiency
Heat flow
Solar reflectance
Surface properties
Thermal conductivity
Thermal emittance

Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 89G - Construction Materials, Components, & Equipment
97B - Energy Use, Supply, & Demand
97G - Policies, Regulations & Studies
71D - Ceramics, Refractories, & Glass
71E - Coatings, Colorants, & Finishes
Corporate Author Oak Ridge National Lab., TN.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1324
Contract Number DE-AC05-00OR22725

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