Published on January 12th, 2008 | by Stephanie Evans
The most essential feature of any roof is dependability. It must keep the weather out. Roofs should also be a barrier against fire, protect the house below from excess heat, and add aesthetic appeal. But a truly green roof can be more than just a shelter. Truly green roofs can collect water for gardens. They can supply the energy for your electricity needs. They can even cool cities, and provide habitat for plants and animals.