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Study of Thermal Behaviour of Roofing on Subtropical Climate: the Use of Radiant Barrier
International Journal of Sustainable and Green Energy
Volume 2, Issue 1, January 2013, Pages: 12-17
Received: Dec. 30, 2012; Published: Jan. 10, 2013
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Authors
Carla Fernanda Barbosa Teixeira, Laboratory of Environmental Comfort and Applied Physics - LACAF, University of Campinas, Campinas, São Paulo, Brazil
Lucila Chebel Labaki, Department of Architecture and Construction - DAC, University of Campinas, Campinas, São Paulo, Brazil
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Abstract
Solar radiation is the main energy source and responsible for heat gain in buildings, particularly in tropical climate regions. In general, roofing is one of the constructive components that receive most of incident solar radiation in single-storey buildings. One of the techniques to attenuate the solar heat gain is the use of radiant barrier in the roofing system. This paper presents results about thermal performance of different kinds of radiant barrier applied to tiles to verify the temperature attenuation. The study was performed in test cells, where the radiant barrier (aluminum film) was applied to a roofing system consisting of metallic tiles and PVC membrane. Results show that radiant barriers are efficient in providing a good thermal performance of roofing systems and are expected to contribute for the knowledge transfer to designers so as to provide thermal comfort and energy saving in buildings.
Keywords
Roofing, Radiant Cooling, Subtropical Climate
To cite this article
Carla Fernanda Barbosa Teixeira, Lucila Chebel Labaki, Study of Thermal Behaviour of Roofing on Subtropical Climate: the Use of Radiant Barrier, International Journal of Sustainable and Green Energy. Vol. 2, No. 1, 2013, pp. 12-17. doi: 10.11648/j.ijrse.20130201.12
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