Cool Roofs Combat Extreme Heat in Indian Slums: A Reuters Report

Tackling Extreme Heat with Cool Roofs

• 💡 In India's garat, a simple solution is being used to combat extreme heat: white paint with highly reflective pigments like titanium dioxide.
• 🏠 Over the past two months, hundreds of roofs in an informal settlement have been painted to help keep residents cool as the hottest time of the year approaches.

Climate Change and Health Impacts

• 🌡️ With climate change intensifying India's summers, residents in Ahmedabad have experienced temperatures exceeding 115°F in recent years.
• 🌍 This painting initiative is part of a global scientific trial examining how indoor heat affects health and economic outcomes in developing countries.

The "Cool Roofs" Scientific Trial

• 🔬 The trial involves assigning cool roofs to half the community and comparing outcomes with the other half.
• 📊 Researchers are tracking health, indoor environment, and the effect of reducing indoor temperatures.
• 🗣️ Epidemiologist Ad Didy Bunker is leading the project, focusing on the impact of these reflective surfaces.

Resident Experiences and Early Results

• 🌬️ For residents like Sujan Pren Vanjara, the heat indoors was previously unbearable, but the cool roofs have made a significant difference, allowing them to sit comfortably even without a fan.
• 📉 Early results from a trial site in Burkina Faso indicate that cool roofs successfully reduced indoor temperatures and subsequently lowered residents' heart rates.
• 🌍 The Ahmedabad trial will run for one year, with other study sites located in Burkina Faso, Mexico, and the South Pacific.