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How green is green?

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Abstract
In order to reduce storm water runoff and mitigate the heat island effect the City of Toronto is considering adopting a green roof by-law. Cool (white or reflective) roofs are being considered as an alternative when it is deemed impractical to install a green roof. While the benefits of green or cool roofs look attractive can they deliver what they promise and at what cost? This paper review the proposed Toronto green roof by-law and green roof construction standard and other issues as they relate to the design and construction of green and cool roofs.
Date
4/2009
Author(s)
Douglas Fishburn
Page(s)
Keyword(s)
heat island; green roof; cool roof; reflective


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