With the increase in heat waves caused by climate change, cities are turning into urban heat islands. Colas is actively committed to developing solutions for creating urban cooling islands. The benefits? Reducing ambient temperatures while improving quality of life. Let's explore how Colas implements innovative and sustainable solutions to help cities adapt to these new climate challenges.

Traditional black asphalt used for roads and sidewalks contributes to rising urban temperatures by absorbing up to 100% of solar radiation. Colas innovates with light-colored coatings like Urbalith, Vegecol, and Colclair, which have a higher albedo, meaning a greater ability to reflect sunlight, reducing surface temperatures by 3 to 4 degrees Celsius. These products are particularly used in areas most affected by heat islands, such as schoolyards, public squares, and parking lots. Additionally, some materials have a reduced carbon footprint of 10 to 70%, thanks to the use of bio-based or plant-based binders.

In addition to ground improvements, Colas also innovates with solutions for buildings. The product Axiroof, for example, is a white paint specially designed for roofs. It reflects up to 93% of solar radiation, reducing the indoor temperature of buildings by up to 6°C. By decreasing the heat absorbed by roofs, Axiroof helps make buildings more comfortable while reducing energy consumption related to air conditioning.

The creation of cool islands is not just a response to extreme heat; it is also a way to make our cities more sustainable and livable in the long term. By combining solutions like reflective coatings, vegetation, and smart rainwater management, Colas helps communities adapt to the challenges of climate change while improving the daily comfort of residents.