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Title: Thermal performance of a Concrete Cool Roof under different climatic conditions of Mexico

A cool roof is an ordinary roof with a reflective coating on the exterior surface which has a high solar reflectance and high thermal emittance. These properties let the roof keep a lower temperature than a standard roof under the same conditions. In this work, the thermal performance of a concrete roof with and without insulation and with two colors has been analyzed using the finite volume method. The boundary conditions of the external roof surface were taken from hourly averaged climatic data of four cities. For the internal surface, it is considered that the building is air-conditioned and the inside air has a constant temperature. The interior surface temperature and the heat flux rates into the roofs were obtained for two consecutive days in order to assess the benefits of a cool roofs in different climates.
 [1] ;  [1] ;  [2] ;  [1] ;  [1] ;  [3]
  1. Centro Nacional de Investigación y Desarrollo Tecnológico, CENIDET-DGEST-SEP, Morelos (Mexico)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. WinBuild, Inc., Fairfax, VA (United States)
Publication Date:
OSTI Identifier:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Energy Procedia
Additional Journal Information:
Journal Volume: 57; Journal Issue: C; Journal ID: ISSN 1876-6102
Research Org:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE; Consejo Nacional de Ciencia y Tecnología (CONACYT), Morelos (Mexico)
Country of Publication:
United States
reflective coating; cool roof; surface temperature; heat flux