To achieve LEED certification, what is the minimum percentage of construction waste that must be diverted from landfills?
Correct Answer
D) 75%
LEED requires a minimum of 75% of construction waste to be diverted from landfills through recycling, reuse, or other waste management strategies to earn points in the Materials and Resources category.
Why This Is the Correct Answer
LEED (Leadership in Energy and Environmental Design) certification requires a minimum of 75% construction waste diversion from landfills to earn points in the Materials and Resources category. This threshold demonstrates significant commitment to sustainable construction practices through recycling, reuse, donation, or other approved waste management strategies. The 75% requirement balances environmental responsibility with practical construction realities, making it achievable while still promoting substantial waste reduction efforts.
Why the Other Options Are Wrong
Option A: 90%
90% waste diversion exceeds LEED requirements and would be extremely difficult to achieve on most construction projects. While some projects may reach this level, it is not the minimum threshold required for LEED certification points.
Option B: 50%
50% waste diversion falls short of LEED's minimum requirement. This percentage would not earn points in the Materials and Resources category, as LEED sets a higher standard to promote more aggressive waste reduction practices.
Option C: 25%
25% waste diversion is insufficient for LEED certification points. This low percentage does not demonstrate the level of environmental commitment that LEED standards require for sustainable construction practices.
Memory Technique
Remember 'Three-quarters for LEED' - 75% waste diversion is three-quarters of all construction waste, making it a substantial majority that must be kept out of landfills.
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