In 2016, the Boulanger shop in Amiens (Somme) encountered a problem common to many commercial buildings: persistent summer overheating due to direct exposure of the bitumen roof to the sun’s rays, leading to overconsumption of air conditioning and accelerated deterioration of the waterproofing.
To remedy the situation, Cool Roof France applied its thermo-reflective coating directly to the existing bitumen membrane over an area of 2,660 m². The work was part of an instrumented analysis over the period 2016-2018, including temperature readings by thermal camera between treated and untreated areas.
The results are clear: the store has recorded a 30% reduction in its electricity consumption related to air conditioning, saving 59 MWh per year, which corresponds to 22 kWh/m²/year. A significant gain for a building of this size, with a rapid return on investment.
Thermal analysis revealed a maximum surface temperature reduction of 27°C, and an average drop of 12.5°C. This dramatic reduction not only limits the internal thermal load, but also helps preserve the building envelope, reducing wear and tear on the waterproofing.
This feedback demonstrates the effectiveness of cool roofing in the commercial sector: reduced energy consumption, improved thermal comfort, and extended roof lifespan. A proven solution, simple to deploy and immediately cost-effective for buildings exposed to summer overheating.
Do you manage a building that experiences summer overheating or excessive energy consumption? Like the Boulanger Amiens store, take action with a simple, measurable, and sustainable solution. Contact us today to explore how cool roofing can improve comfort, reduce costs, and extend the life of your roof.
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