- Home
- USGBC
- Leadership in Energy and Environmental Design (LEED)
- LEED-AP-Homes - LEED AP Homes (Residential) Exam
LEED-AP-Homes Exam Dumps - LEED AP Homes (Residential) Exam
Introduction of outdoor air works to improve indoor air quality by:
Dilution
Source control
Pressurization
Source removal
Answer:
Explanation:
TheLEED for Homes Rating System (v4)addresses indoor air quality in theIndoor Environmental Quality (EQ) Prerequisite: VentilationandEQ Credit: Enhanced Ventilation, which require outdoor air to improve indoor air quality by reducing pollutant concentrations.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EQ Prerequisite: Ventilation
Introduce outdoor air to dilute indoor pollutants, improving air quality by reducing the concentration of contaminants such as volatile organic compounds (VOCs) and carbon dioxide.
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
Outdoor air ventilation dilutes indoor pollutants, ensuring a healthier indoor environment by lowering contaminant levels.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The introduction of outdoor air improves indoor air quality primarily throughdilution(Option A), as it mixes with indoor air to reduce pollutant concentrations.
Why not the other options?
What is the intent of Innovation Prerequisite: Preliminary Rating?
To define the credits that can be achieved most cost-effectively
To define the mandatory certification level at the beginning and declare it to all parties
To maximize opportunities for integrative, cost-effective adoption of green design and construction strategies
To encourage exceptional performance for current credits and promote innovative performance in pioneering areas
Answer:
Explanation:
TheLEED for Homes Rating System (v4)includes theInnovation (IN) Prerequisite: Preliminary Rating, which requires the project team to conduct an early assessment to identify achievable credits and set sustainability goals.
According to theLEED Reference Guide for Homes Design and Construction (v4):
IN Prerequisite: Preliminary Rating
The intent is to maximize opportunities for integrative, cost-effective adoption of green design and construction strategies by establishing a preliminary rating early in the design process. This involves identifying potential credits and setting performance goals with the project team.
Source: LEED Reference Guide for Homes Design and Construction, v4, Innovation Prerequisite: Preliminary Rating, p. 186.
TheLEED v4.1 Residential BD+Crating system confirms:
IN Prerequisite: Preliminary Rating
The goal is to foster an integrative process that identifies cost-effective green strategies and aligns the project team on sustainability objectives from the outset.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isto maximize opportunities for integrative, cost-effective adoption of green design and construction strategies(Option C), as this reflects the prerequisite’s focus on early planning for sustainability.
Why not the other options?
A Habitat for Humanity LEED for Homes project receives donations of building materials from a demolition service. Which of the following donated products will earn points for being reclaimed under the Environmentally Preferable Products credit?
Vintage clawfoot bathtub
Stainless steel kitchen sink
Laminate kitchen countertop
Ten matching wall sconce light fixtures
Answer:
Explanation:
TheLEED for Homes Rating System (v4)awards points for theMaterials and Resources (MR) Credit: Environmentally Preferable Productswhen materials are reclaimed (reused or salvaged from another project), contributing to the required percentage of material cost.
According to theLEED Reference Guide for Homes Design and Construction (v4):
MR Credit: Environmentally Preferable Products (1–4 points)
Use products that are reused or salvaged from the same or another project for at least 25%, 50%, or 90% (by cost) of the total materials. Reclaimed materials include items like vintage fixtures (e.g., bathtubs) that are reused in their original form.
Source: LEED Reference Guide for Homes Design and Construction, v4, Materials and Resources Credit: Environmentally Preferable Products, p. 160.
TheLEED v4.1 Residential BD+Crating system confirms:
MR Credit: Environmentally Preferable Products
Reclaimed materials, such as salvaged fixtures like a vintage clawfoot bathtub, qualify for points if they contribute to the required material cost percentage (e.g., 25% for 1 point).
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isvintage clawfoot bathtub(Option A), as it is a salvaged fixture reused in its original form, qualifying as a reclaimed material under the credit.
Why not the other options?
Energy simu-lation software used for ENERGY STAR Homes certification is approved by the:
Department of Energy (DOE)
U.S. Green Building Council (USGBC)
Environmental Protection Agency (EPA)
Residential Energy Services Network (RESNET)
Answer:
Explanation:
TheLEED for Homes Rating System (v4)integrates ENERGY STAR Homes certification as part of theEnergy and Atmosphere (EA)category, specifically for theEA Prerequisite: Minimum Energy PerformanceandEA Credit: Annual Energy Use. ENERGY STAR Homes certification requires energy simulation software to model the home’s performance, and this software must be approved by a specific authority.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Prerequisite: Minimum Energy Performance
Projects pursuing ENERGY STAR for Homes certification must use energy simulation software accredited by the Residential Energy Services Network (RESNET) to demonstrate compliance with ENERGY STAR performance requirements.
Source: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Prerequisite: Minimum Energy Performance, p. 112.
TheResidential Energy Services Network (RESNET)is the organization responsible for accrediting energy modeling software used for ENERGY STAR Homes certification, such as REM/Rate or Ekotrope. RESNET establishes standards for Home Energy Rating Systems (HERS) and ensures software accuracy for energy performance calculations.
TheLEED v4.1 Residential BD+Crating system aligns with this:
EA Prerequisite: Energy Performance
ENERGY STAR Homes certification requires the use of RESNET-accredited energy modeling tools to verify performance targets, such as HERS index scores.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
While theEnvironmental Protection Agency (EPA)oversees the ENERGY STAR program, it does not directly approve the simulation software; that responsibility lies with RESNET.
Why not the other options?
A builder plans to build two semi-detached residential homes at a rural lot he just bought, where the municipal water system cannot reach. The homes will use well water dug on site. The builder would like to build the two units as LEED certified homes. To meet the prerequisite of Water Efficiency domain in LEED Homes, what should the builder do?
Install two water meters for each unit separately
Use one water meter for the entire building of two units
These two semi-detached homes will be exempt from the prerequisite of Water Efficiency
At least one water meter will be shared by two units, and another separate meter will be used for monitoring landscaping water usage
Answer:
Explanation:
TheLEED for Homes Rating System (v4)includes theWater Efficiency (WE) Prerequisite: Total Water Use, which requires metering to monitor water consumption in LEED-certified homes, even those using well water.
According to theLEED Reference Guide for Homes Design and Construction (v4):
WE Prerequisite: Total Water Use
Install water meters to measure total potable water use for the entire home, including indoor and outdoor uses. For multifamily or attached housing (e.g., semi-detached homes), each dwelling unit must have its own water meter to track individual usage accurately.
Source: LEED Reference Guide for Homes Design and Construction, v4, Water Efficiency Prerequisite: Total Water Use, p. 94.
TheLEED v4.1 Residential BD+Crating system confirms:
WE Prerequisite: Total Water Use
In attached housing projects, such as semi-detached homes, each unit must have a separate water meter to monitor potable water use, regardless of whether the water source is municipal or well water.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
For two semi-detached homes using well water, the builder mustinstall two water meters for each unit separately(Option A) to comply with the prerequisite, ensuring individual monitoring of water use for each dwelling unit.
Why not the other options?
The Home Energy Rating System (HERS) Index, which measures the energy efficiency of a home, was developed by the:
Department of Energy (DOE)
Environmental Protection Agency (EPA)
U.S. Green Building Council (USGBC)
Residential Energy Services Network (RESNET)
Answer:
Explanation:
TheLEED for Homes Rating System (v4)integrates theHome Energy Rating System (HERS) Indexin theEnergy and Atmosphere (EA) Prerequisite: Minimum Energy PerformanceandEA Credit: Annual Energy Useto measure a home’s energy efficiency.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Prerequisite: Minimum Energy Performance
The Home Energy Rating System (HERS) Index, developed by the Residential Energy Services Network (RESNET), is used to assess a home’s energy efficiency compared to a reference home. A lower HERS Index indicates better energy performance.
Source: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Prerequisite: Minimum Energy Performance, p. 112.
TheLEED v4.1 Residential BD+Crating system confirms:
EA Prerequisite: Energy Performance
The HERS Index, created by RESNET, is the standard metric for energy efficiency in LEED for Homes, used to verify compliance with ENERGY STAR and LEED requirements.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isResidential Energy Services Network (RESNET)(Option D), as RESNET developed the HERS Index.
Why not the other options?