What phase of the integrative process gives the team the greatest chance of success in meeting the project's environmental goals cost-effectively?
Answer(s): B
. DiscoveryThe discovery phase of the integrative process gives the team the greatest chance of success in meeting the project's environmental goals cost-effectively. The discovery phase is the initial stage of the project, where the team establishes the vision, goals, and performance criteria, conducts a site assessment, identifies synergies and trade-offs among systems, and performs preliminary analysis and modeling of energy and water use. By engaging in this phase early and iteratively, the team can explore various design options, identify potential savings and benefits, and optimize the project outcomes.
Reference Guide for Building Design and Construction v4 Pages 28-291 Understanding Integrative Design in LEED v4 - BuildingGreen2
The project team has decided to substitute the flooring in the school gym with natural rubber flooring that has met the Sustainable Agriculture Standard. The cost of the substituted flooring is $80,000. The project will achieve
Answer(s): A
. Materials and Resources Credit, Building Product Disclosure and Optimization - Sourcing of Raw Materials, Option 2. Leadership Extraction PracticesNatural 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. 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. Therefore, the cost of the substituted flooring ($80,000) can be counted towards the credit threshold.
Reference Guide for Building Design and Construction v4 Pages 263-2641 Sustainable Agriculture Standard | Rainforest Alliance3
What aspects of each space should the LEED consultant consider to identify the regularly occupied spaces on a project to ensure that floor area values are utilized consistently across credits?
Answer(s): C
. Average number of occupants standing or seatedTo identify the regularly occupied spaces on a project, the LEED consultant should consider the average number of occupants standing or seated in each space, as this is the criterion used by the LEED Reference Guide for Green Building Design and Construction, 20091. Regularly occupied spaces are defined as areas where workers are seated or standing as they work (or perform regular tasks) inside a building. The typical duration of occupancy in each space per day is not necessarily relevant, as some spaces may be used intermittently but still qualify as regularly occupied. The rate of outdoor air provided per person and the fire ratings of installed wall and ceiling assemblies are not related to the definition of regularly occupied spaces, but rather to other credits such as Indoor Environmental Quality or Fire and Life Safety.
Which of the following projects is eligible to pursue the Energy and Atmosphere Prerequisite, Minimum Energy Performance, Option 2. Prescriptive Compliance: ASHRAE 50% Advanced Energy Design Guide?
The Energy and Atmosphere Prerequisite, Minimum Energy Performance, Option 2. Prescriptive Compliance: ASHRAE 50% Advanced Energy Design Guide allows projects to follow the recommendations of the ASHRAE 50% Advanced Energy Design Guides (AEDGs) for different building types and climate zones. The AEDGs provide design guidance for buildings that use 50% less energy than those built to the requirements of the ANSI/ASHRAE/IES Standard 90.1-2004 commercial code. However, not all building types and sizes are covered by the AEDGs. According to the LEED Reference Guide for Building Design and Construction2, the following building types and sizes are eligible for this option:Small to Medium Office buildings up to 100,000 ft2 (9 290 m2) Medium to Large Retail buildings up to 100,000 ft2 (9 290 m2) K-12 School buildings up to 200,000 ft2 (18 580 m2)Warehouse and Distribution Center buildings up to 500,000 ft2 (46 450 m2) Therefore, among the given options, only the school project is eligible to pursue this option, as it falls within the size limit for the K-12 School AEDG3.
LEED Reference Guide for Building Design and Construction v4 Minimum Energy Performance - ASHRAE 90.1 - 2010ASHRAE 50% Advanced Energy Design Guide for K-12 School Buildings Advanced Energy Design Guides | Department of Energy
A project has a potable water source as well as two alternative water sources. Which of the following statements is applicable for a project using two alternative water sources?
The best practice for using alternative water sources is to target the uses that require the least treatment first, such as irrigation, toilet flushing, and cooling tower makeup. This reduces the energy and cost associated with treating water to higher standards than necessary. Matching uses by location is not a requirement, nor is treating all alternative water sources to potable water standards. A project may use more than one alternative water source as long as they meet the applicable codes and standards.
WE Credit Indoor Water Use Reduction, WE Credit Outdoor Water UseReduction, WE Credit Cooling Tower Water Use1
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