1. Definition + history 2. Type. 3. Benefits. 4. Design consideration: anatomy- structural design- practical implications: fire, irrigation, safety and access Reference: 1. https://na.eventscloud.com/file_uploads/ed04e0c035bcf9b9acd5d648e3fde965_Greenroof_Design_and_Construction-BT.pdf 2. https://www.slideshare.net/mobile/AndrewMyrthong/green-roofs-57239083 3. index.cfm.pdf