Environmental Benefits of Green Roofs on a City Scale
An example of City of Toronto

Hitesh Doshi, Doug Banting James Li, Paul Missios, Angela Au,
Beth Anne Currie, Michael Verrati,

 

Abstract

A study to determine the environmental benefits and costs of green roof technology for the City of Toronto has been recently completed. The study is currently undergoing review. This presentation will discuss the approach that was taken to determine the benefits of green roof on a city scale and the preliminary findings.
The purpose of this study was to determine the environmental costs and benefits of green roof at the municipal level. Such an exercise requires the compilation of very specific information from many diverse sources. The approach involved the following:

• identification of environmental benefits at municipal level,
• quantifying the impact of green roof for each of the benefits,
• monetizing the benefit,
• pplying the benefits on the citywide basis based on actual distribution of buildings.

 

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