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Effect of Roof Tile Colour on Heat Conduction Transfer, Roof-Top Surface Temperature and Cooling Load in Modern Residential Buildings under the Tropical Climate of Malaysia

Author

Listed:
  • Syed Ahmad Farhan

    (Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia)

  • Fouad Ismail Ismail

    (Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia)

  • Osamah Kiwan

    (Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia)

  • Nasir Shafiq

    (Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia)

  • Azni Zain-Ahmed

    (Office of International Affairs, Universiti Teknologi MARA, Shah Alam 40450, Malaysia)

  • Nadzhratul Husna

    (Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia)

  • Afif Izwan Abd Hamid

    (Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia)

Abstract

Modern residential roofs in Malaysia mainly employ red and brown roof tiles due to aesthetic factors and the ability of the roof surface to reflect or retard heat transfer is typically not considered the main priority. The present article reveals the findings of a study on the effect of roof tile colour on heat conduction transfer through roof tiles and ceiling boards, roof-top surface temperature and cooling load. Findings suggest that the selection of white roof tiles significantly reduces the peaks of heat conduction transfer and roof-top surface temperature as well as the values of heat conduction transfer and roof-top surface temperature throughout diurnal profiles, which consequently reduces hours of indoor thermal discomfort and use of air-conditioners in indoor spaces. A decline in peak roof-top surface temperature of up to 16.00 °C that results in annual energy savings of up to 13.14% can be achieved when the roof tile colour is changed from red to white. Further research on the development of solar-reflective paint or coating products that can significantly increase the solar reflectance values of non-white roof tiles are essential to overcome issues related to maintenance difficulties and lack of preference among house buyers towards white roof tiles.

Suggested Citation

  • Syed Ahmad Farhan & Fouad Ismail Ismail & Osamah Kiwan & Nasir Shafiq & Azni Zain-Ahmed & Nadzhratul Husna & Afif Izwan Abd Hamid, 2021. "Effect of Roof Tile Colour on Heat Conduction Transfer, Roof-Top Surface Temperature and Cooling Load in Modern Residential Buildings under the Tropical Climate of Malaysia," Sustainability, MDPI, vol. 13(9), pages 1-23, April.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:9:p:4665-:d:541136
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    References listed on IDEAS

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    1. Zingre, Kishor T. & Wan, Man Pun & Wong, Swee Khian & Toh, Winston Boo Thian & Lee, Irene Yen Leng, 2015. "Modelling of cool roof performance for double-skin roofs in tropical climate," Energy, Elsevier, vol. 82(C), pages 813-826.
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    Cited by:

    1. Mohammed Dahim & Syed Ahmad Farhan & Nasir Shafiq & Hashem Al-Mattarneh & Rabah Ismail, 2022. "Thermal-Energy Performance of Bulk Insulation Coupled with High-Albedo Roof Tiles in Urban Pitched Residential Roof Assemblies in the Hot, Humid Climate," Sustainability, MDPI, vol. 14(5), pages 1-22, March.
    2. Guofu Luo & Tianxing Sun & Haoqi Wang & Hao Li & Jiaqi Wang & Zhuang Miao & Honglei Si & Fuliang Che & Gen Liu, 2023. "An Energy-Saving Regulation Framework of Central Air Conditioning Based on Cloud–Edge–Device Architecture," Sustainability, MDPI, vol. 15(3), pages 1-20, January.
    3. Fadye Al Fayad & Wahid Maref & Mohamed M. Awad, 2021. "Review of White Roofing Materials and Emerging Economies with Focus on Energy Performance Cost-Benefit, Maintenance, and Consumer Indifference," Sustainability, MDPI, vol. 13(17), pages 1-21, September.

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