LEED AP with Operations and Maintenance (O+M ) Practice Exam

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What percentage of non-roof hardscape must be covered with a heat island reduction strategy for projects to be eligible for credit?

30%
50%
70%
100%

The correct answer is: 50%

For projects seeking to achieve credit under the LEED rating system specifically for heat island reduction, the requirement states that 50% of non-roof hardscape must be covered with an appropriate heat island reduction strategy. This aspect of LEED is aimed at minimizing the heat generated in and around a building due to surfaces that absorb and retain heat, such as asphalt or concrete. By covering a significant portion of these surfaces with strategies such as shaded areas, reflective materials, or permeable pavements, projects can effectively mitigate heat absorption, which in turn contributes to cooler surrounding environments and reduces the need for increased air conditioning, thus promoting energy efficiency. Reaching the threshold of 50% ensures that a meaningful impact is made on the heat island effect while still being a realistic target for various types of projects. Options that suggest a lower percentage may not sufficiently address the urban heat island effect, while higher percentages may create impractical challenges concerning design and construction.