TheLEED for Homes Rating System (v4)addresses minimum outdoor air ventilation requirements in theIndoor Environmental Quality (EQ) Prerequisite: Ventilation, which ensures adequate indoor air quality through proper ventilation design.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EQ Prerequisite: Ventilation
Meet the minimum outdoor air ventilation requirements of ASHRAE Standard 62.2-2010, Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings. This standard specifies minimum ventilation rates and other measures to provide acceptable indoor air quality in residential buildings.
Source: LEED Reference Guide for Homes Design and Construction, v4, Indoor Environmental Quality Prerequisite: Ventilation, p. 142.
TheLEED v4.1 Residential BD+Crating system confirms:
EQ Prerequisite: Ventilation
Comply with ASHRAE Standard 62.2-2010 for minimum outdoor air ventilation rates in single-family and low-rise multifamily homes to ensure healthy indoor air quality.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isASHRAE Standard 62.2-2010(Option C), as it is the specific standard referenced for minimum ventilation requirements in LEED for Homes.
Why not the other options?
[Reference: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Prerequisite: Minimum Energy Performance, p. 112 (references IECC for energy, not ventilation)., B. ENERGY STAR for Homes: While ENERGY STAR includes ventilation requirements, it references ASHRAE 62.2-2010, not a standalone standard.Reference: LEED Reference Guide for Homes Design and Construction, v4, EQ Prerequisite: Ventilation, p. 142., D. ASHRAE Standard 90.1-2010: This standard applies to commercial buildings’ energy performance, not residential ventilation.Reference: LEED Reference Guide for Homes Design and Construction, v4, no mention of ASHRAE 90.1 for residential ventilation., TheLEED AP Homes Candidate Handbookemphasizes EQ prerequisites, including ventilation standards, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of ASHRAE 62.2-2010., References:, LEED Reference Guide for Homes Design and Construction, v4, USGBC, Indoor Environmental Quality Prerequisite: Ventilation, p. 142., LEED v4.1 Residential BD+C, USGBC LEED Credit Library, accessed via LEED Online (https://www.usgbc.org/credits)., LEED AP Homes Candidate Handbook, GBCI, October 2024, p. 12 (references study resources and exam scope based on LEED v4)., USGBC LEED for Homes Rating System (v4), available via USGBC website (https://www.usgbc.org/resources/leed-homes-design-and-construction-v4)., LEED v4.1 for Homes, USGBC, accessed via LEED Online, confirming ASHRAE 62.2-2010., ]
