In the dry season, rooftops across Accra and Kumasi absorb heat at a rate that pushes surface temperatures above 65°C. That heat doesn’t stay on the roof — it radiates inward, forcing residents to run air conditioning for longer, driving up electricity bills, and shortening the lifespan of materials inside the building. For most of West Africa’s history, this was simply accepted as the cost of living in a tropical climate. It doesn’t have to be.
Cool Roof Technology works on a simple physical principle: reflectivity. A standard dark metal roof reflects roughly 5–15% of solar radiation. AWA’s Cool Roof coating pushes that figure above 65%, dramatically reducing the amount of heat absorbed by the structure beneath. In independent measurements taken at client sites in Tema and Kumasi, we recorded surface temperature reductions of between 22°C and 28°C on identical roof geometries — one standard, one cool-coated.
The downstream effects go beyond comfort. A cooler roof means less thermal expansion and contraction, which extends the working life of fixings, seams, and the sheet itself. Buildings that previously required re-roofing within 10–12 years are showing no material degradation after 15 years with the cool coating. For large commercial roofs — warehouses, schools, hospitals — the energy savings can be significant enough to fund the coating premium within two to three years.
We’re seeing a clear trend: developers and institutional clients who prioritise lifecycle cost over upfront price are the fastest adopters. As Ghana’s energy grid comes under increasing pressure, Cool Roof Technology isn’t just a comfort upgrade — it’s a sound financial and environmental decision that belongs in the specification of every new building in West Africa.
“In Accra and Kumasi, average rooftop temperatures hit 65°C on a clear day. We measured the difference a reflective coating makes — and the numbers will change how you spec your next roof.”
"In Accra and Kumasi, average rooftop temperatures hit 65°C on a clear day. We measured the difference a reflective coating makes — and the numbers will change how you spec your next roof."
