Enhancing Energy Efficiency and Sustainability through Titanium Dioxide Enhanced Cool Roof Paints with Maximum Solar Reflectance

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Published: Sep 26, 2026
Keywords:
Cool Roof Pigment Titanium Dioxide Indoor Temperature

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P. Ragupathi
Department of Mechanical Engineering, Faculty of Engineering, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, 641021, India
S. Satheesh Kumar
Department of Aeronautical Engineering, Nehru Institute of Technology, Coimbatore, Tamil Nadu, 641105, India
B. Vijaya Prakash
Department of Mechanical Engineering, Dhanalakshmi Srinivasan College of Engineering, Tamil Nadu, 641105, India
J. Justin Maria Hillary
Department of Mechatronics Engineering, Sri Krishna College of Engineering and Technology, Coimbatore, Tamil Nadu, 641008, India
K. R. Sakthivel
Department of Mechanical Engineering, Hindusthan College of Engineering and Technology, Coimbatore, Tamil Nadu, 641032, India
M. Krishnan Selvaraj
Department of Mechanical Engineering, Erode Sengunthar Engineering College, Thudupathi, Perundurai ,Tamil Nadu, 63805, India

Abstract

Cool roofs lower building temperatures by reflecting the sun, reducing cooling energy consumption. Their performance is solar reflectivity (SR) and infrared emissivity (IE) dependent. White ceramic tiles, white cement, and aluminium foil are normally used materials in India, but they lose performance over time. This research offers the addition of titanium dioxide (TiO₂) to paint for roof application to increase and maintain reflectivity. TiO₂, a white pigment, reflects infrared radiation, enhancing SR and prolonging roof longevity. Experimental data indicate indoor temperature decreases of 4.0–5.3°C, substantiating apparent cooling advantages. In contrast to conventional materials, TiO₂-based coatings remedy durability problems, presenting a cost-effective and environmentally friendly method for enhancing energy efficiency in warm regions. This novel method underscores TiO₂'s promise in revolutionizing cool roof technology for long-term use in India.

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How to Cite
P, R., S, S. K., B, V. P., J, J. M. H., K R, S., & Krishnan Selvaraj, M. (2026). Enhancing Energy Efficiency and Sustainability through Titanium Dioxide Enhanced Cool Roof Paints with Maximum Solar Reflectance. Journal of Research and Applications in Mechanical Engineering, 14(3), JRAME–26. retrieved from https://ph01.tci-thaijo.org/index.php/jrame/article/view/263694
Issue
Vol. 14 No. 3 (2026)
Section
RESEARCH ARTICLES
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