USGBC Updated LEED-AP-BD+C Exam Questions and Answers by aarya

The minimum scope of analysis for a product-specific declaration is cradle-to-gate, which means from raw material extraction to the factory gate. This option requires the use of at least 20 different permanently installed products sourced from at least five different manufacturers that have product-specific declarations.

Materials and Resources Credit, Building Product Disclosure and Optimization - Sourcing of Raw Materials, Option 2. Leadership Extraction Practices

Natural rubber flooring is a bio-based material that can contribute to the achievement of Option 2 of the Sourcing of Raw Materials credit, which requires using products that meet at least one of the responsible extraction criteria for at least 25%, by cost, of the total value of permanently installed building products in the project 1 . By meeting the Sustainable Agriculture Standard (SAN), the natural rubber flooring demonstrates that it has been produced in a way that conserves biodiversity, protects natural resources, and enhances social and economic well-being 2 . Therefore, the cost of the substituted flooring ($80,000) can be counted towards the credit threshold.

According to the LEED V5 Reference Guide for Building Design and Construction, diverted construction waste is defined as "materials that are diverted from disposal in landfills or incineration facilities and are instead reused, recycled, composted, or salvaged" 1 . Asphalt with aggregate is an example of a material that can be recycled and reused for paving or other applications. Excavated soil and land-clearing debris are excluded from the calculation of the total construction and demolition waste for the MR Credit Building Life-Cycle Impact Reduction 1 . Alternative daily cover is a material that is used to cover the surface of an active landfill at the end of each day to control odors, pests, and litter. It is not considered as diversion because it does not reduce the amount of waste sent to landfills 2 . References : MR Credit Building Life-Cycle Impact Reduction, LEED V5 Reference Guide for Building Design and Construction 3 1 4 2

Interior paint must always be included in Materials and Resources credits. This is because interior paint is considered as a permanently installed product, which is defined by the LEED V5 Reference Guide for Building Design and Construction as "a product that is installed in a project permanently or semi-permanently, such that removal would require demolition or substantial renovation." 1 Permanently installed products must be included in the calculations for the following Materials and Resources credits: Building Life-Cycle Impact Reduction, Building Product Disclosure and Optimization - Environmental Product Declarations, Building Product Disclosure and Optimization - Sourcing of Raw Materials, and Building Product Disclosure and Optimization - Material Ingredients. 1 The other options are not always included in Materials and Resources credits. Faucets (option A) and fire suppression systems (option D) are considered as mechanical, electrical, and plumbing components, which are excluded from the scope of Materials and Resources credits unless they are specifically addressed by the credit requirements. 1 Furniture (option B) is considered as a non-permanently installed product, which is optional to include in Materials and Resources credits, except for the Building Product Disclosure and Optimization - Material Ingredients credit, where furniture must be included if it is within the project scope. 1 References : LEED V5 Reference Guide for Building Design and Construction, p. 579 1 ; LEED V5 Reference Guide for Building Design and Construction, p. 580 1 ; LEED V5 Reference Guide for Building Design and Construction, p. 581 1 ; LEED V5 Reference Guide for Building Design and Construction, p. 582 1 ; LEED V5 Reference Guide for Building Design and Construction, p. 583 1