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Abstract
The number of parameters involved in designing an appropriate vegetated roofing system can be daunting; therefore a framework is needed to streamline the decision-making process. This research comprises the creation of a framework diagramming the decision process involved in the design of vegetated roofing systems. Through a series of expert interviews and case studies, the available knowledge is being captured and organized in order to determine the critical parameters affecting design decisions. An initial set of six case study projects in North America has been analyzed and six critically important evaluation categories were identified: storm water management, energy consumption, acoustics, structure, cost, and compliance with regulatory guidelines and governmental incentives. These six factors are key decision-making parameters in the design of vegetated roofing and they form the basis of this study. They are addressed individually and in interaction with one another in the context of a decision support system for green roof designers. A weighted environmental index is used to determine the most feasible green roof systems for a particular project. The framework described in this paper will ultimately be adaptable to digital processing and a computer-based design assistance tool.
The number of parameters involved in designing an appropriate vegetated roofing system can be daunting; therefore a framework is needed to streamline the decision-making process. This research comprises the creation of a framework diagramming the decision process involved in the design of vegetated roofing systems. Through a series of expert interviews and case studies, the available knowledge is being captured and organized in order to determine the critical parameters affecting design decisions. An initial set of six case study projects in North America has been analyzed and six critically important evaluation categories were identified: storm water management, energy consumption, acoustics, structure, cost, and compliance with regulatory guidelines and governmental incentives. These six factors are key decision-making parameters in the design of vegetated roofing and they form the basis of this study. They are addressed individually and in interaction with one another in the context of a decision support system for green roof designers. A weighted environmental index is used to determine the most feasible green roof systems for a particular project. The framework described in this paper will ultimately be adaptable to digital processing and a computer-based design assistance tool.
Date
5/2005
5/2005
Author(s)
Elizabeth Grant, James Jones
Elizabeth Grant, James Jones
Page(s)
Keyword(s)
green roof; vegetation
green roof; vegetation