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Study of Thermal Behaviour of Roofing on Subtropical Climate: the Use of Radiant Barrier

Published: 10 January 2013
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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.

Published in International Journal of Renewable and Sustainable Energy (Volume 2, Issue 1)
DOI 10.11648/j.ijrse.20130201.12
Page(s) 12-17
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2013. Published by Science Publishing Group

Keywords

Roofing, Radiant Cooling, Subtropical Climate

References
[1] Givoni, B. "Comfort, climate analysis and building design guidelines", in Energy and Buildings, n.18, July, 1992.
[2] Associação Brasileira de Normas Técnicas – ABNT, NBR 15220: Desempenho Térmico de Edificações, Parte 3: Zoneamento bioclimático brasileiro e diretrizes construtivas para habitações unifamiliares de interesse social, Associação Brasileira de Normas Técnicas, 2005. Regulation is also available on .
[3] J. Cook, Passive Cooling, Series: Solar Heat Technologies, 8, Cambridge, 2002.
[4] S. A. Al-Sanea, "Thermal performance of building roof elements", in. Building and Environment, n. 37, p. 665-675, 2002.
[5] R. Tang; Y. Etzion, "On thermal performance of an improved roof for cooling buildings", in Building and Environment, n. 39, p. 201-209, 2004.
[6] S. E. Bretz, and H. Akbari, "Long-term performance of high-albedo roof coatings", in Energy and Buildings, 25, 1997.
[7] Centro de Pesquisas Meteorológicas e Climáticas Aplicadas à Agricultura"– CEPAGRI, available on .
[8] G. de S Rolim; M. B. P de Camargo; D. G Lania; J. F. L de Moraes, "Classificação climática de Köppen e de Thornthwaite e sua aplicabilidade na determinação de zonas agroclimáticas para o estado de São Paulo", in Bragantia, v.66, n.4, pp.711-720, 2007.
[9] D. Jain, "Modeling of solar passive techniques for roof cooling in arid regions", in Building and Environment, n. 41, pp. 277-287, 2006.
Cite This Article
  • APA Style

    Carla Fernanda Barbosa Teixeira, Lucila Chebel Labaki. (2013). Study of Thermal Behaviour of Roofing on Subtropical Climate: the Use of Radiant Barrier. International Journal of Sustainable and Green Energy, 2(1), 12-17. https://doi.org/10.11648/j.ijrse.20130201.12

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    ACS Style

    Carla Fernanda Barbosa Teixeira; Lucila Chebel Labaki. Study of Thermal Behaviour of Roofing on Subtropical Climate: the Use of Radiant Barrier. Int. J. Sustain. Green Energy 2013, 2(1), 12-17. doi: 10.11648/j.ijrse.20130201.12

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    AMA Style

    Carla Fernanda Barbosa Teixeira, Lucila Chebel Labaki. Study of Thermal Behaviour of Roofing on Subtropical Climate: the Use of Radiant Barrier. Int J Sustain Green Energy. 2013;2(1):12-17. doi: 10.11648/j.ijrse.20130201.12

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  • @article{10.11648/j.ijrse.20130201.12,
      author = {Carla Fernanda Barbosa Teixeira and Lucila Chebel Labaki},
      title = {Study of Thermal Behaviour of Roofing on Subtropical Climate: the Use of Radiant Barrier},
      journal = {International Journal of Sustainable and Green Energy},
      volume = {2},
      number = {1},
      pages = {12-17},
      doi = {10.11648/j.ijrse.20130201.12},
      url = {https://doi.org/10.11648/j.ijrse.20130201.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijrse.20130201.12},
      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.},
     year = {2013}
    }
    

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  • TY  - JOUR
    T1  - Study of Thermal Behaviour of Roofing on Subtropical Climate: the Use of Radiant Barrier
    AU  - Carla Fernanda Barbosa Teixeira
    AU  - Lucila Chebel Labaki
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    DO  - 10.11648/j.ijrse.20130201.12
    T2  - International Journal of Sustainable and Green Energy
    JF  - International Journal of Sustainable and Green Energy
    JO  - International Journal of Sustainable and Green Energy
    SP  - 12
    EP  - 17
    PB  - Science Publishing Group
    SN  - 2575-1549
    UR  - https://doi.org/10.11648/j.ijrse.20130201.12
    AB  - 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.
    VL  - 2
    IS  - 1
    ER  - 

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Author Information
  • Laboratory of Environmental Comfort and Applied Physics - LACAF, University of Campinas, Campinas, S?o Paulo, Brazil

  • Department of Architecture and Construction - DAC, University of Campinas, Campinas, S?o Paulo, Brazil

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