What is the minimum percentage of construction waste that must be diverted from landfills to earn LEED points for construction waste management?
Correct Answer
C) 50%
LEED requires a minimum of 50% construction waste diversion from landfills to earn the first point for construction waste management, with additional points available for higher diversion rates.
Why This Is the Correct Answer
LEED (Leadership in Energy and Environmental Design) construction waste management credit requires a minimum of 50% diversion of construction and demolition debris from landfills to earn the first point. This 50% threshold represents the baseline requirement that demonstrates a significant commitment to waste reduction. Projects can earn additional points by achieving higher diversion rates, typically 75% or more, but 50% is the minimum entry point for any LEED waste management credit.
Why the Other Options Are Wrong
Option A: 65%
75% is typically the threshold for earning maximum points in LEED waste management credit, not the minimum requirement to begin earning points
Option B: 25%
25% is too low to meet LEED standards for construction waste management credit - this percentage would not qualify for any LEED points as it doesn't demonstrate sufficient commitment to sustainable waste practices
Option D: 75%
65% exceeds the minimum requirement and would likely earn additional points beyond the base credit, but it's not the minimum threshold needed to start earning LEED points
Memory Technique
Think '50-50' - you need to divert at least half (50%) of your waste to get your first LEED point, like a 50-50 partnership between landfill and diversion
Reference Hint
Look up LEED v4 BD+C Reference Guide, Materials and Resources section, or Florida Building Code Chapter 13 on Energy Efficiency
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