LEED Materials and Resources Cycles 3

Question 1

Which LEED v4 credit category specifically addresses the disclosure of chemical ingredients in building products?

Accepted Answer

Building Product Disclosure and Optimization – Material Ingredients

Answer

The Material Ingredients credit rewards products that disclose their chemical composition using tools like Health Product Declarations (HPDs) or Cradle to Cradle certification.

Question 2

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?

Accepted Answer

Post-consumer content × product cost + 0.5 × pre-consumer content × product cost

Answer

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.

Question 3

What does 'cradle-to-gate' mean in the context of a life-cycle assessment used for LEED EPDs?

Accepted Answer

Raw material extraction through factory gate, excluding use and disposal phases

Answer

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.

Question 4

Which organization's certification satisfies LEED's responsible forestry sourcing requirement for wood products?

Accepted Answer

Forest Stewardship Council (FSC)

Answer

LEED v4 specifically recognizes FSC certification as the standard for responsible forest management when sourcing wood-based products.

Question 5

A contractor excavates 500 tons of soil on-site and reuses it for landscaping grading. How does LEED treat this material in waste calculations?

Accepted Answer

It is excluded from waste calculations as land-clearing debris reused on site

Answer

LEED excludes land-clearing debris such as soil, rock, and vegetation from construction waste calculations when it is reused on the same site.

LEED - Leadership in Energy and Environmental Design Certification Practice Test

LEED - Leadership in Energy and Environmental Design Certification Practice Test

LEED Materials and Resources Cycles 3