International Green Roof Association

The International Green Roof Association (IGRA) is a global organization that promotes the use of green roofs—vegetated roof surfaces—in cities worldwide. Green roofs help improve air quality, reduce urban heat, manage stormwater, and enhance the environment. IGRA provides information, research, and support to designers, builders, and policymakers to encourage environmentally friendly roofing practices. Its goal is to foster sustainable urban development by integrating green roofs into city planning, making cities healthier, more resilient, and more aesthetically pleasing.