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

The outdoor airflow rate is the amount of outdoor air that is supplied to the building by the ventilation system to dilute indoor air pollutants and provide fresh air for the occupants. The outdoor airflow rate depends on the ventilation standard that the project follows, which can be either ASHRAE 62.1-2010 or CEN Standard EN 15251-20071. Both standards specify the minimum outdoor airflow rate per person and per unit area for different occupancy types and zones. Therefore, increasing the number of occupants will require an increase in the outdoor airflow rate to maintain the minimum ventilation level. The other variables, such as supply air velocity, system ventilation efficiency, and supply air temperature set point, do not directly affect the outdoor airflow rate, although they may influence the energy consumption and thermal comfort of the ventilation system.

References:

• LEED Reference Guide for Building Design and Construction v4
• Minimum Indoor Air Quality Performance
• Ventilation for Acceptable Indoor Air Quality - ASHRAE
• Indoor environmental input parameters for design and assessment of … - CEN

The Basis of Design (BOD) is a document that describes the design intent and performance criteria for a project. It must include the environmental, energy efficiency and sustainability goals that theproject team has established, as well as the strategies and systems to achieve them. The BOD is part of the Integrative Process credit, which aims to foster collaboration and holistic thinking among the project stakeholders from the pre-design phase to the occupancy phase.

References: = [LEED v4: Building Design + Construction Guide], [Integrative Process Calculator], [Integrative Process credit].

The only stage of LEED for Neighborhood Development certification that is eligible for points under Building Design and Construction: New Construction, Location and Transportation Credit, LEED for Neighborhood Development Location, is LEED for Neighborhood Development Pilot, Stage 3 LEED for Neighborhood Development Certified Project.This is because the credit requires that the project be located within the boundary of a development that has achieved certification under LEED for Neighborhood Development (either Stage 2 or Stage 3 under the Pilot or 2009 rating systems, or Certified Plan or Certified Project under the LEED v4 rating system)1The other stages listed in the question are either conditional approvals or pre-reviews that do not guarantee certification23References:1: LEED v4 Reference Guide for Building Design and Construction, Location and Transportation Credit: LEED for Neighborhood Development Location, page 460.2: LEED for Neighborhood Development Location – Above Green33: LEED v4: Building Design + Construction Guide - U.S.Green Building Council1

Energy efficiency goals and training requirements are required to be present in the Owner’s Project Requirements (OPR) when applying the Integrative Process to a Building Design and Construction project.According to the LEED v4 BD+C ReferenceGuide, the OPR is a document that details the ideas, concepts, and criteria that are determined by the owner to be important to the success of the project1.The OPR must include, among other things, the following information related to energy efficiency1:

• The owner’s energy performance goals and expectations
• The owner’s requirements for energy metering and monitoring
• The owner’s requirements for energy modeling and analysis
• The owner’s requirements for commissioning and verification
• The owner’s requirements for training and documentation

The other options are not required to be present in the OPR, as they are either related to other aspects of the project, such as codes and standards, interior finishes, or project team members, or they are not relevant to the Integrative Process, which focuses on early analysis of energy, water, and site systems2.References: LEED v4 BD+C Reference Guide, Integrative Process Category, IPc Integrative Process, page 632.