Guardian · 8 hours ago

Better sleep, Improved health, Happier people: How ‘Cool Roofs’ Could Help Millions Avoid Deadly Heat | Global Development | the...

A simple coat of reflective paint on corrugated metal and asbestos roofs across African townships is proving that adaptation to climate change can begin with what already shelters us. In homes where summer heat once made children cry and kept families awake through stifling nights, temperatures now drop by 3-4 degrees Celsius during the hottest hours-enough for Sylvia, a single mother in Cape Town's Khayelitsha township, to say her children sleep better, and "for me, that means everything." The researchers behind this pilot project understand that better sleep isn't merely comfort; it's a defense against cascading health problems from hypertension to diabetes, making the painted roof a quiet intervention with profound consequences. As one participant whose roof remains unpainted observes, "Painting the roofs may seem like a small thing, but for us, it changes how we live." What began as a study to evaluate heat adaptation strategies where none existed has become a reminder that sometimes the most transformative solutions don't require reinventing shelter-just reimagining it.