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Open AccessArticle

Sensitivity of Radiative and Thermal Properties of Building Material in the Urban Atmosphere

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Departamento de Obras Civiles, Facultad de Ciencias de la Ingeniería, Universidad Católica del Maule, Av. San Miguel 3605, Talca 3480112, Chile
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Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, São Paulo 05508-090, Brazil
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Atmospheric Extreme Events Laboratory, Federal Technology University—Paraná, Av. Pioneiros 3131, Londrina 86036-370, Paraná, Brazil
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Department of Physics, Federal University of Santa Catarina, Bairro da Trindade-Florianópolis, Santa Catarina 88040-900, Brazil
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Centro de Innovación en Ingeniería Aplicada, Departamento de Computación e Industrias, Universidad Católica del Maule 3605, Talca 3480112, Chile
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Centro de Innovación en Ingeniería Aplicada, Departamento de Obras Civiles, Universidad Católica del Maule 3605, Talca 3480112, Chile
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Author to whom correspondence should be addressed.
Sustainability 2019, 11(23), 6865; https://doi.org/10.3390/su11236865
Received: 13 November 2019 / Revised: 27 November 2019 / Accepted: 28 November 2019 / Published: 3 December 2019
(This article belongs to the Special Issue Sustainable Construction and Building Materials for Environment)
In the context of the impact of urbanization on climate change, this work aims to evaluate the sensitivity of the thermal and radiative properties of building surfaces in urban areas to the urban heat island intensity, a local scale meteorological phenomenon. For this, variations of albedo values, emissivity, thermal conductivity and heat capacity of roofs, streets and walls were simulated through an urban scheme coupled with the BRAMS mesoscale atmospheric model for the metropolitan area of São Paulo, considering two main urban types. The simulations show that, in general, looking for cold surface situations, the change of building material can contribute to a reduction of up to 3 °C for São Paulo. In addition, the role of orientation and the typological characteristics of constructions should be taken into account. In this sense, it is expected that this work guides civil engineers and builders to search for new materials in order to reduce the effects of urbanization on the local climate. View Full-Text
Keywords: radiative and thermal properties; urban climate; Urban Heat Island; sustainable construction radiative and thermal properties; urban climate; Urban Heat Island; sustainable construction
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Morais, M.V.B.; Urbina Guerrero, V.V.; Freitas, E.D.; Marciotto, E.R.; Valdés, H.; Correa, C.; Agredano, R.; Vera-Puerto, I. Sensitivity of Radiative and Thermal Properties of Building Material in the Urban Atmosphere. Sustainability 2019, 11, 6865.

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