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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

  1. What is the minimum percentage of total building material cost that must come from products with EPDs to earn one point under LEED v4 Building Product Disclosure and Optimization – Environmental Product Declarations?

    Answer: 20% of total material cost

    LEED v4 requires that 20 different products from 5 different manufacturers have EPDs, or that products representing 20% of total material cost by value have EPDs for one point.

  2. How does LEED v4 define 'permanently installed' materials for the purpose of materials credits?

    Answer: Materials that form the building's physical structure and envelope, including finishes

    LEED defines permanently installed materials as those that become part of the building's physical fabric, including structure, envelope, interior finishes, and mechanical systems.

  3. A salvaged brick from a demolished building is used in a new LEED project. Which LEED credit does this contribution count toward?

    Answer: Building Product Disclosure – Sourcing of Raw Materials (reuse/salvage pathway)

    Salvaged or reused materials qualify under the Sourcing of Raw Materials credit's reuse pathway, as reuse is a responsible sourcing strategy that avoids new resource extraction.

  4. Which of the following is NOT a recognized waste diversion method under LEED Construction and Demolition Waste Management?

    Answer: Burying clean fill on an adjacent property

    Burying material on an adjacent property is not a recognized diversion method; LEED requires materials to be sent to recycling, reuse, or composting facilities.

  5. The 'Interiors Life-Cycle Impact Reduction' credit in LEED v4 Interior Design + Construction (ID+C) can be earned by doing which of the following?

    Answer: Reusing 25% of existing interior non-structural elements by area

    One pathway for this credit is reusing at least 25% of existing interior non-structural elements such as flooring, ceilings, and partitions by surface area.

  6. What is a 'Product Category Rule' (PCR) in the context of EPDs used for LEED credits?

    Answer: A standardized set of rules defining how an LCA is conducted for a specific product category

    A PCR provides the methodological framework for conducting a consistent and comparable life-cycle assessment within a product category, enabling meaningful EPD comparisons.

  7. Under LEED v4.1, which update was made to the Construction and Demolition Waste Management credit compared to v4?

    Answer: Projects can now use a combination of waste diversion rates and absolute waste generated per floor area

    LEED v4.1 introduced a dual pathway allowing projects to demonstrate compliance by achieving a low absolute waste generation rate (kg per m²) in addition to or instead of a diversion percentage.