Materials and Resources Cycles Flashcards
7 cards from real LEED practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Materials and Resources Cycles flashcards as text
Which LEED v4 credit category specifically addresses the disclosure of chemical ingredients in building products?
Answer: Building Product Disclosure and Optimization – Material Ingredients
The Material Ingredients credit rewards products that disclose their chemical composition using tools like Health Product Declarations (HPDs) or Cradle to Cradle certification.
A project team wants credit for using a product with 30% post-consumer recycled steel. Under LEED v4, how is recycled content value calculated for this credit?
Answer: Post-consumer content × product cost + 0.5 × pre-consumer content × product cost
LEED calculates recycled content value as (post-consumer % × cost) + (0.5 × pre-consumer % × cost), giving post-consumer content double the weight of pre-consumer content.
What does 'cradle-to-gate' mean in the context of a life-cycle assessment used for LEED EPDs?
Answer: Raw material extraction through factory gate, excluding use and disposal phases
Cradle-to-gate covers extraction of raw materials through manufacturing and leaving the factory, but excludes transportation to site, use, and end-of-life phases.
Which organization's certification satisfies LEED's responsible forestry sourcing requirement for wood products?
Answer: Forest Stewardship Council (FSC)
LEED v4 specifically recognizes FSC certification as the standard for responsible forest management when sourcing wood-based products.
A contractor excavates 500 tons of soil on-site and reuses it for landscaping grading. How does LEED treat this material in waste calculations?
Answer: It is excluded from waste calculations as land-clearing debris reused on site
LEED excludes land-clearing debris such as soil, rock, and vegetation from construction waste calculations when it is reused on the same site.
Which scenario best demonstrates the 'closed-loop' material cycle concept in LEED?
Answer: Designing building components so they can be disassembled and reused in future construction
A closed-loop system keeps materials in productive use by designing for disassembly and reuse, preventing waste from entering the linear economy.
Under LEED v4 Building Operations and Maintenance (O+M), what does the 'Solid Waste Management – Ongoing' credit evaluate?
Answer: The building's operational recycling and composting program effectiveness
This O+M credit assesses whether the building has a comprehensive ongoing recycling program with measurable diversion rates for operational waste streams.