URBAN HEAT ISLAND MITIGATION. CLASSIFICATION OF BUILDING MATERIALS USED IN THE URBAN ENVELOPES ACCORDING THEIR CAPACITY FOR COOLING THE CITY

NOELIA ALCHAPAR; ERICA CORREA; M. ALICIA CANTÓN; GRACIELA LESINO

Kassel

Congreso; ISES Solar World Congress 2011; 2011

Increase of urban temperature has a direct effect on energy consumption, thermal comfort and environmental contamination of cities. Internationally, the different strategies formulated to mitigate the urban heat island are sustained in two principles: Increase the green coverage of the areas and work on the thermophysical properties -albedo, emissivity, rugosity, etc- of the materials used in the resolution of the surroundings (roofs, pavements and facades) of urban areas. The work presented here classifies a Group of materials used in the surrounding areas of the city of Mendoza, Argentina, according to the method described by regulation ASTM E1980. The Solar Reflectance Index (SRI) of the selected materials, based on the measurement of its solar reflectivity, its thermal emissivity and its superficial temperature. In this way, also, it is possible to compare internationally the result of the operation of materials used locally and regionally, and at the same time, generate knowledge around the standardization of the regional materials, laying the foundations to propitiate a future energetic certification.