To promote the wider adoption of green roofs, policy measures should combine financial incentives, public engagement, and regulatory integration. Providing subsidies, grants, or tax incentives, especially for installations on public buildings, can create demonstration sites that encourage broader uptake. At the same time, awareness and communication campaigns are essential to inform citizens, planners, and decision-makers about the multiple benefits of green roofs, including stormwater management, urban heat mitigation, energy savings, and biodiversity support. Finally, integrating green roofs into urban planning regulations and climate adaptation strategies ensures that their installation is systematically considered in both new constructions and retrofits. By aligning financial, social, and regulatory measures, cities can accelerate replication and upscaling, maximizing the environmental, hydrological, and social impacts of green roofs.