Greenfornia|Pick up, Recycle, don’t go backwards.

Another alternative to traditional roofing materials is a rooftop garden, or “green roof.” On hot summer days, the surface temperature of a vegetated rooftop can be cooler than the air temperature, whereas the surface of a traditional rooftop can be up to 90°F (50°C) warmer.

• Read the EPA’s page on Green Roofing.