With the help of my college professor, I established the first commercial green roof in the state of Nebraska! Prairie plants—plants that would survive drought, and other harsh conditions—were used to cover the roof. A specially designed mixture, called RoofliteTM was used as a lightweight growing media. This planting media was tested for its water holding capacity and drainage properties before it was used. So what does all of this mean? Economically, it means we are receiving huge energy savings by insulating the roof.