An effective, sustainable and low-cost answer to cities and buildings overheating is using building “passive cooling” technologies, which allow to reduce the temperatures of buildings envelope (roofs and walls) and consequently of the surrounding air (thus limiting Urban Heat Island), rather than increase energy demands from artificial cooling. Among building passive cooling solutions, the use of Ventilated and Permeable Roofs (VPR) is the most sustainable
and promising strategy.
The “HEROTILES” developed under previous LIFE HEROTILE project even have an improved cooling ability compared to another roof technologies. However, several policies/legislative/awareness barriers need to be addressed to properly spread the Ventilated and Permeable Roofs and the “HEROTILE-based roof” (HBR), depending on two main factors:
- the lack of a consolidated legislative framework for building passive cooling technologies and especially Ventilated and Permeable Roofs ;
- the lack of awareness on the positive impact of VPR on UHI, indoor comfort and energy savings, by building stakeholders, users, policy makers and public administrations.