What should be done to minimize a building\\\'s impact on ozone depletion?

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试卷: LEED GA模拟题B[查看]
What should be done to minimize a building”s impact on ozone depletion?
A: Zero use of CFCs
B: Install a green roof
C: Reduce heat islands
D: Use halons in fire suppression systems

参考答案: A

本题解释:
The rating systems have a prerequisite for Fundamental Refrigerant Management which requires zero use of CFCs. CFCs are known to cause ozone depletion.

For buildings with existing systems that use CFC-based refrigerants, the systems must be phased out within 5 years after the project is completed, unless a third-party audit shows the simple payback for retrofitting/replacement is more than 10 years.

Fundamental Refrigerant Management differs from Enhanced Refrigerant Management which requires either using no refrigerants or using refrigerants that are low in Ozone Depletion Potential and Global Warming Potential (ODP and GWP); Install a green roof helps reduce heat islands, and can reduce the amount of energy a building uses due to the insulating properties of the roof;Heat islands do not cause ozone depletion;Halons cause ozone depletion.
Reference: LEED 2009 for New Construction and Major Renovations Rating System