health

Better sleep, improved health, happier people: how ‘cool roofs’ could help millions avoid deadly heat

A project to measure how reflective paint reduces indoor temperatures is delivering tangible benefits across Africa

Better sleep, improved health, happier people: how ‘cool roofs’ could help millions avoid deadly heat

TL;DR

  • Reflective roof paint is being tested in a pilot project across Africa to combat extreme heat in homes.
  • Homes with painted roofs are, on average, 3-4C cooler during the hottest parts of the day.
  • Improved indoor temperatures lead to better sleep, which has positive impacts on mental and physical health.
  • The Habvia project is collecting data in Khayelitsha (South Africa), Mphego village (South Africa), Ga-Mashie (Ghana), and Nkwantakese (Ghana).
  • The goal is to understand the health benefits of reflective roof paint in different settings and climates.
  • The project uses a locally manufactured South African product, Rhinoluxe Heat Reflect.
  • Researchers are collecting temperature data, conducting health checks, and gathering testimonials from participants.
  • The initiative aims to provide a sustainable and affordable solution to heat adaptation, with a vision to paint millions of roofs.
  • There is a strong link between disrupted sleep due to heat and negative health outcomes like worsening hypertension, diabetes, and cardiovascular disease.