TheLEED for Homes Rating System (v4)includes theEnergy and Atmosphere (EA) Credit: Efficient Hot Water Distribution System, which aims to reduce energy and water waste in hot water delivery.Option 1:
Length of Pipingfocuses on minimizing the length of hot water piping to reduce heat loss and delivery time.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Credit: Efficient Hot Water Distribution System, Option 1. Length of Piping (1-2 points) Design and install the hot water distribution system to meet one of the following requirements:
* Maximum branch line length: The length of any branch line from the water heater or hot water source to any fixture must not exceed 20 feet (6 meters) for 1 point, or 10 feet (3 meters) for 2 points.This reduces the volume of water that must be purged before hot water reaches the fixture, saving energy and water.Source: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Credit: Efficient Hot Water Distribution System, p. 132.
TheLEED v4.1 Residential BD+Crating system maintains this requirement:
EA Credit: Efficient Hot Water Distribution
Option 1: Limit the length of branch lines from the water heater to fixtures to 20 feet (6 meters) for 1 point or
10 feet (3 meters) for 2 points.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
Limiting branch line length(Option A) directly aligns with Option 1 of this credit, as it reduces the distance hot water must travel, minimizing heat loss and water waste.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Efficient Hot Water Distribution System, p. 133.
C). Installing demand-controlled recirculation: This is part ofOption 3: Demand-Controlled Recirculation in LEED v4, where recirculation systems are activated only when hot water is needed (e.g., via a button or motion sensor). It is not part of Option 1.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Efficient Hot Water Distribution System, p. 133.
D). Insulating all domestic hot water piping to R-4: While pipe insulation is a best practice and may be required in some EA credits (e.g., EA Prerequisite: Minimum Energy Performance), it is not a specific requirement for Option 1 of the Efficient Hot Water Distribution System credit. Insulation reduces heat loss but does not address branch line length.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Prerequisite: Minimum Energy Performance, p. 112.
TheLEED AP Homes Candidate Handbookemphasizes EA credits, including hot water distribution, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of Option 1’s focus on branch line length.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Energy and Atmosphere Credit: Efficient Hot Water Distribution System, p. 132-133.
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 branch line length criteria.

TheLEED for Homes Rating System (v4)includes theIntegrative Process (IP) Credit: Integrative Process, Option 2: Trades Training, which requires training for key construction trades to ensure proper implementation of green building strategies.
According to theLEED Reference Guide for Homes Design and Construction (v4):
IP Credit: Integrative Process, Option 2: Trades Training (1 point)
The mechanical contractor (responsible for HVAC systems) must attend the entire four-hour training session to ensure proper installation and operation of energy-efficient systems critical to LEED compliance. Other trades, such as air sealing and insulation contractors, are also encouraged but not explicitly required to attend the full session.
Source: LEED Reference Guide for Homes Design and Construction, v4, Integrative Process Credit:
Integrative Process, p. 45.
TheLEED v4.1 Residential BD+Crating system confirms:
IP Credit: Integrative Process, Option 2: Trades Training
The mechanical contractor, as a key trade responsible for energy-related systems, must participate fully in the four-hour training to meet the credit requirements, ensuring expertise in sustainable HVAC installation.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer ismechanical contractor(Option B), as their full attendance is critical due to the importance of HVAC systems in achieving LEED energy goals.
Why not the other options?
* A. Project architect: Architects are part of the design team, not typically required for trades training.
* C. Site supervisor or superintendent: While important, they oversee general construction, not specific system installation.
Reference: LEED Reference Guide for Homes Design and Construction, v4, IP Credit: Integrative Process, p.
45.
TheLEED AP Homes Candidate Handbookemphasizes IP credits, including trades training, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based on LEED v4, ensuring the relevance of mechanical contractor attendance.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Integrative Process Credit:
Integrative Process, p. 45.
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 trades training requirements.

TheLEED for Homes Rating System (v4)requires third-party verification for prerequisites and credits, with specific roles defined for the verification team. TheLEED Green Rateris responsible for conducting field inspections to verify compliance.
According to theLEED Reference Guide for Homes Design and Construction (v4):
Verification Process
The LEED Green Rater, a trained professional certified by the Green Building Certification Institute (GBCI), conducts field inspections to verify compliance with LEED for Homes prerequisites and credits, including energy, water, and indoor environmental quality measures.
Source: LEED Reference Guide for Homes Design and Construction, v4, Introduction, p. 28.
TheLEED v4.1 Residential BD+Crating system confirms:
Verification Process
The LEED Green Rater performs on-site inspections to ensure that the project meets all prerequisites and targeted credits, documenting compliance for certification.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isLEED Green Rater(Option D), as this team member is responsible for field inspections of LEED prerequisites and credits.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Prerequisite: Minimum Energy Performance, p. 112.
B). LEED for Homes Provider: The Provider oversees the certification process and coordinates verification but does not conduct field inspections.Reference: LEED Reference Guide for Homes Design and Construction, v4, Introduction, p. 28.
C). LEED for Homes QAD: The Quality Assurance Designee (QAD) reviews documentation for quality control, not field inspections.Reference: LEED Reference Guide for Homes Design and Construction, v4, Introduction, p. 28.
TheLEED AP Homes Candidate Handbookemphasizes the verification process, including the role of the Green Rater, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of the Green Rater’s role.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Introduction, p. 28.
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 verification roles.

TheLEED for Homes Rating System (v4)includesRegional Priority (RP) Credits, which provide bonus points for addressing location-specific environmental priorities. Each region has a set number of RP credits available, from which a project can earn up to four points.
According to theLEED Reference Guide for Homes Design and Construction (v4):
Regional Priority Credits (1-4 points)
In each region, six Regional Priority Credits are available, based on the project’s ZIP code or location, addressing critical environmental issues. A project can earn up to four bonus points by achieving any combination of these six credits.
Source: LEED Reference Guide for Homes Design and Construction, v4, Regional Priority Credits, p. 190.
TheLEED v4.1 Residential BD+Crating system confirms:
Regional Priority Credits
Six RP credits are identified for each region, from which a project team can choose to pursue up to four for bonus points, based on local environmental priorities.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer issix credits(Option B), as six Regional Priority Credits are available for a project team to choose from in any region, with a maximum of four points achievable.
Why not the other options?
* A. Four credits: This is the maximum number of points a project can earn, not the total number of RP credits available.
* C. Seven credits: No region has seven RP credits; the standard is six.
Reference: LEED Reference Guide for Homes Design and Construction, v4, Regional Priority Credits, p. 190.
TheLEED AP Homes Candidate Handbookemphasizes RP credits and their regional applicability, referencing theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of the six-credit availability.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Regional Priority Credits, p.
190.
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 RP credit availability.

TheLEED for Homes Rating System (v4)includes theLocation and Transportation (LT) Credit:
Community Resources and Services, which awards points for locating a project near or integrating community services to reduce transportation needs, particularly in multi-family buildings.
According to theLEED Reference Guide for Homes Design and Construction (v4):
LT Credit: Community Resources and Services (1-2 points)
In multi-family buildings, provide access to community services (e.g., retail, grocery, pharmacy) within the development or within 1/4 mile (0.4 km) walking distance. Including retail on the street level of the development contributes to earning points by enhancing access to services for residents.
Source: LEED Reference Guide for Homes Design and Construction, v4, Location and Transportation Credit: Community Resources and Services, p. 56.
TheLEED v4.1 Residential BD+Crating system confirms:
LT Credit: Community Resources and Services
Providing retail on the street level of a multi-family building qualifies as a strategy to meet the credit by integrating community resources directly within the project, reducing resident travel.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isretail on the street level of the development(Option B), as this directly enhances access to community services, contributing to the credit’s requirements.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, LT Credit: Compact Development, p. 57.
C). Additional parking for adjacent retail developments: This does not enhance resident access to services within the project or nearby.Reference: LEED Reference Guide for Homes Design and Construction, v4, LT Credit: Community Resources and Services, p. 56.
D). Shuttle service for the residents to their places of employment: Shuttle services may supportLT Credit: Access to Quality Transit, but not Community Resources and Services.Reference: LEED Reference Guide for Homes Design and Construction, v4, LT Credit: Access to Quality Transit, p. 58.
TheLEED AP Homes Candidate Handbookemphasizes LT credits, including Community Resources and Services, and references theLEED Reference Guide for Homes Design and Constructionas a key resource.
The exam is based onLEED v4, ensuring the relevance of retail integration.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Location and Transportation Credit: Community Resources and Services, p. 56.
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 community resources strategies.

TheLEED for Homes Rating System (v4)awards points for theMaterials and Resources (MR) Credit:
Environmentally Preferable Productswhen materials meet sustainable criteria, such as being reclaimed, recycled, or FSC-certified. The scenario specifies that 50% of the exterior is clad with salvaged (reclaimed) brick, and the remaining 50% is wood.
According to theLEED Reference Guide for Homes Design and Construction (v4):
MR Credit: Environmentally Preferable Products (1-4 points)
Use products that meet one or more of the following criteria for at least 25% (1 point), 50% (2 points), or 90% (3-4 points) by cost of the total materials:
* Reused or salvaged materials: Materials reclaimed from the same or another project, such as salvaged brick.
* FSC-certified wood: Wood products certified by the Forest Stewardship Council.To earn 1 point, at least 25% of the total material cost must meet one or more criteria, with products like salvaged brick qualifying as reclaimed.Source: LEED Reference Guide for Homes Design and Construction, v4, Materials and Resources Credit: Environmentally Preferable Products, p. 160-161.
TheLEED v4.1 Residential BD+Crating system confirms:
MR Credit: Environmentally Preferable Products
Reclaimed materials, such as salvaged brick, contribute to the percentage of environmentally preferable products based on their cost. A minimum of 25% by cost is required for 1 point.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
In this scenario, 50% of the exterior cladding is salvaged brick, which qualifies as reclaimed material. Sinceat least half of the siding is reclaimed(Option C), this meets the 25% threshold for 1 point, assuming the material cost proportion aligns. The wood portion does not need to be FSC-certified or reclaimed unless additional points are targeted.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, MR Credit: Environmentally Preferable Products, p. 160.
B). Cladding combinations cannot earn points: This is incorrect; combinations of reclaimed, FSC-certified, or other qualifying materials can earn points based on total material cost.Reference: LEED Reference Guide for Homes Design and Construction, v4, MR Credit: Environmentally Preferable Products, p. 161.
D). At least half of the wood siding is both reclaimed and local: The wood does not need to be reclaimed or local; the salvaged brick (50% of siding) already qualifies for the credit. Local production is a separate option (Option 1).Reference: LEED Reference Guide for Homes Design and Construction, v4, MR Credit:
Environmentally Preferable Products, p. 160.
TheLEED AP Homes Candidate Handbookemphasizes MR credits, including Environmentally Preferable Products, and references theLEED Reference Guide for Homes Design and Constructionas a key resource.
The exam is based onLEED v4, ensuring the relevance of reclaimed materials.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Materials and Resources Credit: Environmentally Preferable Products, p. 160-161.
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 reclaimed material criteria.

TheLEED for Homes Rating System (v4)requires blower door testing in theEnergy and Atmosphere (EA) Credit: Air Infiltrationto measure envelope leakage, expressed as air changes per hour (ACH) at a specific pressure differential.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Credit: Air Infiltration (1-3 points)
Conduct a blower door test to measure envelope leakage in air changes per hour (ACH) at a pressure differential of 50 pascals (Pa). This standardizes the measurement of air tightness across projects.
Source: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Credit: Air Infiltration, p. 124.
TheLEED v4.1 Residential BD+Crating system confirms:
EA Credit: Air Infiltration
Envelope leakage is measured using a blower door test at 50 pascals, reported as ACH50, to assess the airtightness of the building envelope.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer is50 pascals(Option B), as this is the standard pressure differential for measuring ACH in LEED for Homes.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Air Infiltration, p.
124.
C). 75 pascals: Higher pressures are not used, as 50 pascals is the industry standard for consistency.Reference:
LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Air Infiltration, p. 124.
D). 100 pascals: This is too high and not used in residential testing standards.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Air Infiltration, p. 124.
TheLEED AP Homes Candidate Handbookemphasizes EA credits, including air infiltration testing, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of the 50-pascal standard.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Energy and Atmosphere Credit: Air Infiltration, p. 124.
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 ACH50 testing standard.

TheLEED for Homes Rating System (v4)includes theLocation and Transportation (LT) Credit:
Community Resources and Services, which awards points for locating a project near essential community services to reduce transportation-related environmental impacts.
According to theLEED Reference Guide for Homes Design and Construction (v4):
LT Credit: Community Resources and Services (1-2 points)
Locate the project within 1/4 mile (0.4 kilometers) walking distance of at least 4 community services (e.g., bank, supermarket, fire station, daycare, pharmacy, school, etc.) for 1 point, or 8 or more services for 2 points.
The services must be publicly accessible and within the specified distance.
Source: LEED Reference Guide for Homes Design and Construction, v4, Location and Transportation Credit: Community Resources and Services, p. 56.
TheLEED v4.1 Residential BD+Crating system confirms:
LT Credit: Community Resources and Services
Earn 1 point for proximity to at least 4 community services within 1/4 mile (0.4 km), or 2 points for 8 or more services, measured by walking distance.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The project is located within 1/4 mile (0.4 km) of six services: bank, supermarket, fire station, daycare center, pharmacy, and school. Since six services exceed the threshold of four but fall short of eight, the project earns2 points(Option C).
Why not the other options?
* A. Zero points: The project meets the criteria for at least 1 point (four services), so zero points is incorrect.
* B. One point: This applies to exactly four services; six services qualify for 2 points.
Reference: LEED Reference Guide for Homes Design and Construction, v4, LT Credit: Community Resources and Services, p. 56.
TheLEED AP Homes Candidate Handbookemphasizes LT credits, including Community Resources and Services, and references theLEED Reference Guide for Homes Design and Constructionas a key resource.
The exam is based onLEED v4, ensuring the relevance of the service proximity criteria.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Location and Transportation Credit: Community Resources and Services, p. 56.
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 community services criteria.

TheLEED for Homes Rating System (v4)includes theLocation and Transportation (LT) Credit:
Compact Development, which awards points for higher-density development to reduce environmental impacts and promote efficient land use.
According to theLEED Reference Guide for Homes Design and Construction (v4):
LT Credit: Compact Development (1-3 points)
Achieve the following dwelling unit densities (units per acre of buildable land):
* 1 point: # 7 units per acre.
* 2 points: # 12 units per acre.
* 3 points: # 20 units per acre.Calculate density by dividing the number of dwelling units by the buildable land area (in acres).Source: LEED Reference Guide for Homes Design and Construction, v4, Location and Transportation Credit: Compact Development, p. 57.
TheLEED v4.1 Residential BD+Crating system confirms:
LT Credit: Compact Development
For single-family homes, achieve 3 points by developing at least 20 dwelling units per acre on buildable land.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
Calculation:
* Site area: 2 acres (0.8 hectare).
* Number of homes: 40 single-family homes.
* Density: 40 units ÷ 2 acres =20 units per acre.
* This meets the threshold for3 points(# 20 units per acre).
The correct answer isthree points(Option D), as the density of 20 units per acre qualifies for the maximum points under the credit.
Why not the other options?
* A. Zero points: The density (20 units/acre) far exceeds the minimum threshold (7 units/acre).
* B. One point: This applies to # 7 units/acre, below the project’s density.
Reference: LEED Reference Guide for Homes Design and Construction, v4, LT Credit: Compact Development, p. 57.
TheLEED AP Homes Candidate Handbookemphasizes LT credits, including compact development, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of density calculations.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Location and Transportation Credit: Compact Development, p. 57.
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 compact development points.

TheLEED for Homes Rating System (v4)addresses window performance in theEnergy and Atmosphere (EA) Credit: Windows, where a lower U-factor (thermal transmittance) improves energy efficiency by reducing heat loss or gain.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Credit: Windows (1-3 points)
Use windows with a lower U-factor to reduce energy use by minimizing heat transfer through the glazing, improving the home’s thermal performance and reducing heating and cooling loads.
Source: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Credit:
Windows, p. 122.
TheLEED v4.1 Residential BD+Crating system confirms:
EA Credit: Windows
A lower window U-factor reduces energy use by decreasing heat loss in winter and heat gain in summer, contributing to overall energy efficiency.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isreduced energy use(Option B), as a lower U-factor directly improves the home’s energy performance by reducing thermal transfer.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Windows, p. 122.
C). Increased daylighting: Daylighting is influenced by visible light transmission, not U-factor.Reference:
LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Windows, p. 122.
D). Reduced maintenance: U-factor does not impact maintenance requirements.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Windows, p. 122.
TheLEED AP Homes Candidate Handbookemphasizes EA credits, including window performance, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of U-factor benefits.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Energy and Atmosphere Credit: Windows, p. 122.
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 U-factor benefits.

TheLEED for Homes Rating System (v4)awards points for theMaterials and Resources (MR) Credit:
Environmentally Preferable Productswhen using certified lumber, specifically Forest Stewardship Council (FSC)-certified wood, which contributes 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 FSC-certified wood for at least 25% (1 point), 50% (2 points), or 90% (3-4 points) by cost of the total materials. For specific material categories like roof sheathing, at least 90% of the component (by cost) must be FSC-certified to significantly contribute to the credit.
Source: LEED Reference Guide for Homes Design and Construction, v4, Materials and Resources Credit:
Environmentally Preferable Products, p. 160-161.
TheLEED v4.1 Residential BD+Crating system confirms:
MR Credit: Environmentally Preferable Products
Points are awarded for FSC-certified lumber if it constitutes at least 90% of a specific component like roof sheathing (by cost) to meet higher point thresholds (e.g., 3-4 points). Certified lumber is not a prerequisite; it contributes to the credit.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isif the certified content is greater than 90%(Option B), as this ensures the roof sheathing significantly contributes to the credit’s material cost threshold for points.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, MR Credit: Environmentally Preferable Products, p. 161.
C). If the certified wood is sourced from a 600 mi. (966 km) radius: Local sourcing (within 100 miles) is relevant forOption 1: Local Production, not FSC certification.Reference: LEED Reference Guide for Homes Design and Construction, v4, MR Credit: Environmentally Preferable Products, p. 160.
D). No points are earned because certified lumber is a prerequisite: Certified lumber is not a prerequisite; MR Prerequisite: Certified Tropical Woodapplies only to tropical wood, not all lumber.Reference: LEED Reference Guide for Homes Design and Construction, v4, MR Prerequisite: Certified Tropical Wood, p. 156.
TheLEED AP Homes Candidate Handbookemphasizes MR credits, including certified lumber, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of FSC certification thresholds.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Materials and Resources Credit: Environmentally Preferable Products, p. 160-161.
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 certified lumber criteria.

TheLEED for Homes Rating System (v4)includes theLocation and Transportation (LT) Credit: Site Selection, Option 3: Open Space, which encourages projects to be located near publicly accessible open spaces to promote recreation and environmental benefits.
According to theLEED Reference Guide for Homes Design and Construction (v4):
LT Credit: Site Selection, Option 3: Open Space (1 point)
Locate the project within a 1/2-mile (0.8-kilometer) walking distance of a publicly accessible open space that is at least 0.75 acre (0.3 hectare) in size. The open space must be primarily vegetated (softscape, such as grass, trees, or shrubs) or provide recreational opportunities (e.g., playgrounds, trails). Acceptable open spaces include parks, playgrounds, or nature preserves, but not water bodies or privately restricted areas.
Source: LEED Reference Guide for Homes Design and Construction, v4, Location and Transportation Credit: Site Selection, p. 55.
TheLEED v4.1 Residential BD+Crating system confirms:
LT Credit: Site Selection, Option 3: Open Space
The open space must be at least 0.75 acre (0.3 hectare), publicly accessible, and within 1/2 mile (0.8 km) of the project. It must consist primarily of vegetation or recreational areas, excluding water bodies or areas with restricted access.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
Evaluation of options:
* A. 1/2 mi. (0.8 km) of a 3/4 acre (0.3 hectare) cornfield: A cornfield is agricultural land, not a publicly accessible recreational or vegetated open space as defined by LEED, so it does not qualify.
* B. 3/4 mi. (1.2 km) of a publicly accessible park that is 3/4 acre (0.3 hectare) in size: The distance (3/4 mi.) exceeds the 1/2-mile (0.8 km) requirement, so it does not qualify.
* C. 1/2 mi. (0.8 km) of a pond surrounded by a 1/2 acre (0.2 hectare) walkway, and across the street from a 1/4 acre (0.1 hectare) publicly accessible park: The pond is excluded (water bodies do not qualify), and the walkway (0.2 hectare) and park (0.1 hectare) together total 0.3 hectare (0.75 acre), meeting the size requirement within 1/2 mile. Assuming the walkway is vegetated or recreational, this qualifies.
* D. 3/4 mi. (1.2 km) of a 1/4 acre (0.1 hectare) publicly accessible park, across the street from a 1/4 acre (0.1 hectare) lot which is private land open to the public: The distance (3/4 mi.) exceeds 1/2 mile, and the combined area (0.2 hectare) is below 0.3 hectare. Private land, even if publicly accessible, may not fully qualify without clear documentation.
The correct answer isOption C, as it meets the 1/2-mile distance and the combined 0.75-acre size requirement, assuming the walkway is vegetated or recreational.
TheLEED AP Homes Candidate Handbookemphasizes LT credits, including Site Selection, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based on LEED v4, ensuring the relevance of open space criteria.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Location and Transportation Credit: Site Selection, p. 55.
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 open space criteria.

TheLEED for Homes Rating System (v4)requires proper sizing of space heating and cooling systems to ensure energy efficiency, addressed in theEnergy and Atmosphere (EA) Prerequisite: Minimum Energy Performanceand related credits.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Prerequisite: Minimum Energy Performance
Size heating and cooling systems in accordance with ACCA Manual J (Residential Load Calculation). This ensures that HVAC systems are appropriately sized for the home’s thermal loads, improving energy efficiency and occupant comfort.
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
Use ACCA Manual J to calculate heating and cooling loads and properly size HVAC equipment to meet LEED requirements.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
TheACCA Manual J(Option B) is the standard method for sizing residential heating and cooling systems, ensuring they match the home’s thermal requirements.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, Indoor Environmental Quality Prerequisite: Ventilation, p. 142.
C). SMACNA Publication 69.2: SMACNA standards focus on sheet metal and ductwork installation, not system sizing.Reference: No mention in LEED v4 for Homes; irrelevant to HVAC sizing.
D). DOE 2006 HVAC Sizing Guide: While the DOE provides energy guidelines, LEED specifically requires ACCA Manual J for sizing.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Prerequisite: Minimum Energy Performance, p. 112.
TheLEED AP Homes Candidate Handbookemphasizes EA prerequisites, including HVAC sizing, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of ACCA Manual J.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Energy and Atmosphere Prerequisite: Minimum Energy Performance, p. 112.
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 ACCA Manual J requirement.

TheLEED for Homes Rating System (v4)addresses minimum outdoor air ventilation requirements in the Indoor 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.

TheLEED for Homes Rating System (v4)rewards energy-efficient systems, including solar hot water heating, under theEnergy and Atmosphere (EA)category. Solar hot water systems reduce energy use for water heating, a significant component of residential energy consumption.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Credit: Efficient Domestic Hot Water Equipment (1-3 points)
Install high-efficiency water heating equipment, such as solar hot water systems, that meet specified performance criteria (e.g., solar fraction of at least 0.4 for solar systems). Points are awarded based on the efficiency and percentage of hot water demand met by the system.
Source: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Credit:
Efficient Domestic Hot Water Equipment, p. 134.
TheLEED v4.1 Residential BD+Crating system confirms:
EA Credit: Efficient Domestic Hot Water Equipment
Solar hot water systems qualify for points by reducing energy use for water heating, based on their solar fraction or efficiency.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
Solar hot water heating systems are rewarded underEfficient Domestic Hot Water Equipment(Option B), as they directly address water heating efficiency.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: High-Efficiency Appliances, p. 136.
C). Renewable Energy: This credit rewards on-site renewable energy generation (e.g., solar photovoltaic panels for electricity), not solar thermal systems for water heating.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Renewable Energy, p. 138.
D). Balancing of Heating and Cooling Distribution Systems: This credit addresses HVAC duct design and balancing, not water heating.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Balancing of Heating and Cooling Distribution Systems, p. 126.
TheLEED AP Homes Candidate Handbookemphasizes EA credits, including water heating efficiency, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of this credit.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Energy and Atmosphere Credit: Efficient Domestic Hot Water Equipment, p. 134.
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 solar hot water criteria.

TheLEED for Homes Rating System (v4)includesRegional Priority (RP) Creditsto incentivize projects to address environmental issues that are particularly critical in their specific geographic region.
According to theLEED Reference Guide for Homes Design and Construction (v4):
Regional Priority Credits (1-4 points)
The purpose of Regional Priority Credits is to enhance the ability of LEED project teams to address critical environmental issues specific to the project’s location, such as water scarcity or habitat restoration, by providing bonus points for achieving designated credits that align with regional priorities.
Source: LEED Reference Guide for Homes Design and Construction, v4, Regional Priority Credits, p. 190.
TheLEED v4.1 Residential BD+Crating system confirms:
Regional Priority Credits
RP Credits encourage projects to prioritize credits that address location-specific environmental challenges, offering up to four bonus points based on the project’s ZIP code or region.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isto enhance the ability of LEED project teams to address critical environmental issues for the project’s location(Option D), as this reflects the intent of RP credits to focus on regional environmental priorities.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, Regional Priority Credits, p. 190.
B). To equalize credit requirements in all locations: RP credits incentivize, not equalize, location-specific priorities.Reference: LEED Reference Guide for Homes Design and Construction, v4, Regional Priority Credits, p. 190.
C). To identify difficult credit requirements, based on location: RP credits focus on environmental importance, not difficulty.Reference: LEED Reference Guide for Homes Design and Construction, v4, Regional Priority Credits, p. 190.
TheLEED AP Homes Candidate Handbookemphasizes RP credits and their regional focus, referencing the LEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based on LEED v4, ensuring the relevance of regional priorities.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Regional Priority Credits, p.
190.
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 RP credit purpose.

TheLEED for Homes Rating System (v4)includes theWater Efficiency (WE) Credit: Outdoor Water Use, which awards points based on the ratio of turf grass (high water use) to native or adapted plants (low water use) in the softscape to reduce irrigation needs.
According to theLEED Reference Guide for Homes Design and Construction (v4):
WE Credit: Outdoor Water Use (1-4 points)
Reduce outdoor water use by selecting native or adapted plants and limiting turf grass. Points are awarded based on the percentage of softscape area:
* < 5% turf grass and > 75% native or adapted plants: 4 points.The total softscape area is used to calculate the percentages of turf grass and native/adapted plants.Source: LEED Reference Guide for Homes Design and Construction, v4, Water Efficiency Credit: Outdoor Water Use, p. 98-99.
TheLEED v4.1 Residential BD+Crating system confirms:
WE Credit: Outdoor Water Use
Achieve 4 points by ensuring less than 5% of the softscape is turf grass and more than 75% is native or adapted plants, based on area calculations.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
Calculation for 4 points:
* Total softscape area: 57,500 ft².
* For 4 points:
* Turf grass: < 5% of 57,500 ft² = < 0.05 × 57,500 = < 2,875 ft².
* Native or adapted plants: > 75% of 57,500 ft² = > 0.75 × 57,500 = > 43,125 ft².
Evaluate options:
* A. 12,600 ft² turf grass and 40,000 ft² native or adapted:
* Turf grass: 12,600 / 57,500 = 21.91% (> 5%).
* Native: 40,000 / 57,500 = 69.57% (< 75%).
* Does not meet 4-point criteria (only qualifies for 1 point: < 60% turf, > 25% native).
* B. 11,500 ft² turf grass and 40,000 ft² native or adapted:
* Turf grass: 11,500 / 57,500 = 20% (> 5%).
* Native: 40,000 / 57,500 = 69.57% (< 75%).
* Does not meet 4-point criteria (qualifies for 2 points: < 40% turf, > 50% native).
* C. 2,500 ft² turf grass and 44,000 ft² native or adapted:
* Turf grass: 2,500 / 57,500 = 4.35% (< 5%).
* Native: 44,000 / 57,500 = 76.52% (> 75%).
* Meets 4-point criteria.
* D. 4,500 ft² turf grass and 44,000 ft² native or adapted:
* Turf grass: 4,500 / 57,500 = 7.83% (> 5%).
* Native: 44,000 / 57,500 = 76.52% (> 75%).
* Does not meet 4-point criteria (qualifies for 3 points: < 20% turf, > 75% native).
Answer Option C(2,500 ft² turf grass and 44,000 ft² native or adapted landscape) meets the requirements for 4 points.
TheLEED AP Homes Candidate Handbookemphasizes WE credits, including outdoor water use, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of the table’s criteria.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Water Efficiency Credit:
Outdoor Water Use, p. 98-99.
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 softscape ratios.

TheLEED for Homes Rating System (v4)includes theIndoor Environmental Quality (EQ) Credit: Radon Control, which promotes radon-resistant construction techniques to mitigate the health risks of radon gas, a naturally occurring radioactive gas that can accumulate in homes.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EQ Credit: Radon Control (1 point)
Install a passive or active radon-resistant system, including a vent pipe extending from below the foundation (e.g., sub-slab or crawlspace) to the roof to exhaust radon gases before they enter the home. This is a primary radon-resistant construction technique.
Source: LEED Reference Guide for Homes Design and Construction, v4, Indoor Environmental Quality Credit: Radon Control, p. 150.
TheLEED v4.1 Residential BD+Crating system confirms:
EQ Credit: Radon Control
A vent pipe to exhaust gases from under the home (e.g., sub-slab depressurization system) is a key radon- resistant technique, preventing radon entry into living spaces.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isvent pipe to exhaust gases from under the home(Option A), as this is a standard radon- resistant technique, typically involving a sub-slab depressurization system with a vent pipe.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EQ Credit: Radon Control, p.
150.
C). Perforated foundation slab to allow air circulation: Perforated slabs are not a recognized radon-resistant method; they may increase radon entry by allowing gas to flow into the home.Reference: LEED Reference Guide for Homes Design and Construction, v4, EQ Credit: Radon Control, p. 150.
D). Continuously operating bath fans to remove gases from inside the home: Bath fans address general ventilation, not radon-specific mitigation, which requires sub-slab venting.Reference: LEED Reference Guide for Homes Design and Construction, v4, EQ Credit: Enhanced Ventilation, p. 146.
TheLEED AP Homes Candidate Handbookemphasizes EQ credits, including radon control, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based on LEED v4, ensuring the relevance of vent pipe systems.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Indoor Environmental Quality Credit: Radon Control, p. 150.
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 radon-resistant techniques.

TheLEED for Homes Rating System (v4)awards points for theMaterials and Resources (MR) Credit:
Environmentally Preferable Productswhen products are reclaimed (reused or salvaged from another project), contributing to the required percentage of material cost (e.g., 25% for 1 point).
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% (by cost) of the total materials to earn 1 point. Reclaimed products include salvaged architectural elements like stained glass windows, which 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 stained glass windows, 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 isstained glass window(Option A), as it is a salvaged architectural element commonly reused in its original form, qualifying as a reclaimed material under the credit.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, MR Credit: Environmentally Preferable Products, p. 160.
C). Steel garage doors with opener: Garage doors are usually new or refurbished, not reclaimed, and the opener is a mechanical component, not typically salvaged.Reference: LEED Reference Guide for Homes Design and Construction, v4, MR Credit: Environmentally Preferable Products, p. 160.
D). Brick for the home’s exterior cladding: While brick can be reclaimed (as in Question 42), it is not specified as salvaged here, unlike the stained glass window, which is a classic reclaimed item.Reference:
LEED Reference Guide for Homes Design and Construction, v4, MR Credit: Environmentally Preferable Products, p. 160.
TheLEED AP Homes Candidate Handbookemphasizes MR credits, including reclaimed materials, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of reclaimed architectural elements.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Materials and Resources Credit: Environmentally Preferable Products, p. 160.
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 reclaimed material criteria.