• Effectiveness against heat : Comparing green roofs and CoolRoof cool roofs, several scientific studies show that, in terms of heat protection, cool roofs are at least as effective, if not more so, than green roofs. In particular, our CoolRoof coating offers superior performance to those studied in these publications.

However, the green roof offers similar thermal insulation benefits that reflective paint does not.

However, a study from the University of Maryland published in July 2024 highlights cool roofing over greening to reduce urban heat.

• Cost and maintenance :Green roofs are more expensive to install, sometimes require structural reinforcements and require regular maintenance.
• Weight and adaptability : Greening requires a heavy roof load (up to 150kg/m²), which is not always possible on older buildings. CoolRoof is lightweight (<1kg/m²) and easily adaptable.
• Simplicity : The CoolRoof is less expensive and easier to maintain.

In short, CoolRoof offers a practical, economical, and adaptable solution for most roofs. The two solutions are therefore complementary depending on the type of building. Greening professionals are struggling to find plants that can withstand increasingly high temperatures and longer heat waves.