Cooling Benefits

Urban Heat Islands:

• Impervious surfaces cause urban areas to suffer from extra heat

• Increases risk of environmental problems, higher energy consumption, and adverse health of population

• A green roof helps to lower outdoor temperatures and also insulates buildings, which helps to lower the energy use of heat and cooling, which in turn lowers greenhouse gas emissions

• Temperature of a building with a Green Roof is 10 degrees Fahrenheit cooler and reduced the daily energy demand of a building in the summer by 75% [2]

Results:

• Several different scenarios were tested with different assumed amounts of available room fro Green Roofs in the city

• For urban environments such as Mashhad there is a great deal of potential in roofs to take advantage of unused space to benefit the environment

• The results ultimately revealed that the implementation of Green Roods would end up reducing energy consumption, fuel consumption in power plants, and environmental damage costs during the hottest months of the year.