Informal settlements try out new cool roof solutions to beat the heat
Two summers ago, even with the fans on, sweat would trickle down Rupali Devi’s face and body relentlessly. Now, she can sit home and eat a meal in peace, without having to wipe sweat off every few minutes. Rupali, 23, lives in a 128 sq ft house at Nargis Dutt Nagar slum in Mumbai’s Bandra West with her parents and five siblings. With an asbestos sheet for a roof in a congested neighbourhood, summers felt hotter than they actually were. According to a study by the Centre for Science and Environment (CSE), between the decades of 2001-10 and 2014-23, Mumbai’s summers registered a 0.6°C increase in average ambient air temperature and a 7% increase in humidity. In 2023, cBalance Solutions Hub that works on making low-income houses heat-resilient, installed aluminum foil (Alufoil) pipe motors on Rupali’s roof to reflect heat and light in scorching summers. The initiative has given tremendous relief to the eight residents of the house. Alufoil is a cross-linked polythene foam covered with a low-emissivity, high-reflectivity aluminium coating. The coating restricts the heat emitted inside the space where it is installed. https://www.cseindia.org/decoding-the-urban-heat-stress-among-indian-cities-12191
