Use Real USGBC Achieve the LEED-AP-Homes Dumps – 100% Exam Passing Guarantee [Q39-Q59]

Q39. The minimum required outdoor air ventilation is calculated based on the conditioned floor area of the home and the:

Volume of the home

Number of bedrooms

Number of bathrooms

Number of full-time occupants

TheLEED for Homes Rating System (v4)addresses minimum outdoor air ventilation in theIndoor Environmental Quality (EQ) Prerequisite: Ventilation, usingASHRAE Standard 62.2-2010to determine ventilation rates based on conditioned floor area and the number of bedrooms.
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, which calculates ventilation rates based on the conditioned floor area of the home and the number of bedrooms (as a proxy for occupancy). The formula is: Ventilation rate (cfm) = 0.01 × floor area (ft²) + 7.5 × (number of bedrooms + 1).
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
Ventilation rates are determined using ASHRAE 62.2-2010, based on conditioned floor area and the number of bedrooms, which accounts for typical occupancy levels.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isnumber of bedrooms(Option B), as ASHRAE 62.2-2010 uses this alongside conditioned floor area to calculate ventilation requirements.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EQ Prerequisite: Ventilation, p.
142.
C). Number of bathrooms: Bathrooms influence local exhaust requirements, not whole-house ventilation rates.Reference: LEED Reference Guide for Homes Design and Construction, v4, EQ Credit: Enhanced Ventilation, p. 146.
D). Number of full-time occupants: While occupancy affects ventilation needs, ASHRAE 62.2-2010 uses bedrooms as a proxy, not actual occupant counts.Reference: LEED Reference Guide for Homes Design and Construction, v4, EQ Prerequisite: Ventilation, p. 142.
TheLEED AP Homes Candidate Handbookemphasizes EQ prerequisites, including ventilation calculations, 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 ventilation calculation criteria.

Q40. The first consideration in solar home design is to:

Select windows

Size solar shading

Incorporate thermal mass

Orient the building

TheLEED for Homes Rating System (v4)encourages passive solar design strategies in theEnergy and Atmosphere (EA)category, particularly inEA Credit: Optimize Energy PerformanceorEA Prerequisite:
Minimum Energy Performance, to maximize energy efficiency through site and building design.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Credit: Optimize Energy Performance
The first step in solar home design is to orient the building to maximize solar exposure for passive heating, daylighting, and potential active solar systems. Proper orientation (e.g., south-facing in the Northern Hemisphere) optimizes energy performance before other strategies like window selection or shading.
Source: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Credit:
Optimize Energy Performance, p. 118.
TheLEED v4.1 Residential BD+Crating system confirms:
EA Credit: Optimize Energy Performance
Building orientation is the primary consideration in solar design, as it determines the effectiveness of passive solar strategies and energy efficiency measures.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
Thefirst considerationin solar home design is toorient the building(Option D), typically to maximize south- facing exposure (in the Northern Hemisphere) to optimize passive solar heating, daylighting, and solar energy potential.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Windows, p. 122.
B). Size solar shading: Shading is designed after orientation to manage solar gain.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Optimize Energy Performance, p. 118.
C). Incorporate thermal mass: Thermal mass is a secondary strategy to store heat after orientation is optimized.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Optimize Energy Performance, p. 118.
TheLEED AP Homes Candidate Handbookemphasizes EA credits, including solar design, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based on LEED v4, ensuring the relevance of building orientation.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Energy and Atmosphere Credit: Optimize Energy Performance, p. 118.
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 design priorities.

Q41. A LEED for Homes project is located in an area heavily infested with termites. A project could earn Sustainable Sites Credit, Nontoxic Pest Control for employing which of the following design strategies?

Installing a code-approved termite barrier

Installing FSC-certified ipe wood for all decking and stairs

Installing wood framing that is treated 3 ft. (0.9 m) above the foundation

Installing landscaping at least 12 in. (0.3 m) away from all parts of the home

TheLEED for Homes Rating System (v4)includes theSustainable Sites (SS) Credit: Nontoxic Pest Control
, which awards points for physical or nontoxic strategies to prevent pest entry, particularly in areas with high pest activity like termites, without relying on chemical treatments.
According to theLEED Reference Guide for Homes Design and Construction (v4):
SS Credit: Nontoxic Pest Control (1 point)
Employ physical barriers to prevent pest entry, such as installing code-approved termite barriers (e.g., physical shields or mesh) around foundations to protect against termite infestation in a nontoxic manner.
Source: LEED Reference Guide for Homes Design and Construction, v4, Sustainable Sites Credit: Nontoxic Pest Control, p. 82.
TheLEED v4.1 Residential BD+Crating system confirms:
SS Credit: Nontoxic Pest Control
Installing a code-approved termite barrier is a recognized strategy to earn points by preventing termite access without chemical treatments, suitable for areas with heavy infestation.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isinstalling a code-approved termite barrier(Option A), as this is a physical, nontoxic strategy explicitly recognized for the credit in termite-prone areas.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, MR Credit: Environmentally Preferable Products, p. 160.
C). Installing wood framing that is treated 3 ft. (0.9 m) above the foundation: Chemical treatment (e.g., with borates) is not considered nontoxic under this credit.Reference: LEED Reference Guide for Homes Design and Construction, v4, SS Credit: Nontoxic Pest Control, p. 82.
D). Installing landscaping at least 12 in. (0.3 m) away from all parts of the home: While this may reduce pest access, it is not a primary strategy listed for this credit.Reference: LEED Reference Guide for Homes Design and Construction, v4, SS Credit: Nontoxic Pest Control, p. 82.
TheLEED AP Homes Candidate Handbookemphasizes SS credits, including nontoxic pest control, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of termite barriers.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Sustainable Sites Credit:
Nontoxic Pest Control, p. 82.
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 pest control strategies.

Q42. Sustainable Sites Prerequisite, No Invasive Plants requires that all site vegetation:

Be native to the project’s region

Be drought tolerant

Be listed by USDA Cooperative Extension Service or equivalent

Provide shading to 25% of hardscapes

TheLEED for Homes Rating System (v4)includes theSustainable Sites (SS) Prerequisite: No Invasive Plants, which ensures that landscaping does not introduce invasive species that could harm local ecosystems.
According to theLEED Reference Guide for Homes Design and Construction (v4):
SS Prerequisite: No Invasive Plants
All site vegetation must be non-invasive, as verified by the USDA Cooperative Extension Service or an equivalent authority (e.g., local native plant societies or university extension programs). Invasive species are those that are non-native and likely to cause environmental harm.
Source: LEED Reference Guide for Homes Design and Construction, v4, Sustainable Sites Prerequisite: No Invasive Plants, p. 72.
TheLEED v4.1 Residential BD+Crating system confirms:
SS Prerequisite: No Invasive Plants
All plants must be verified as non-invasive by the USDA Cooperative Extension Service or equivalent to ensure they do not disrupt local ecosystems.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isbe listed by USDA Cooperative Extension Service or equivalent(Option C), as this ensures that all site vegetation is non-invasive, meeting the prerequisite.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, SS Prerequisite: No Invasive Plants, p. 72.
B). Be drought tolerant: This is relevant toWE Credit: Outdoor Water Use, not the No Invasive Plants prerequisite.Reference: LEED Reference Guide for Homes Design and Construction, v4, WE Credit: Outdoor Water Use, p. 98.
D). Provide shading to 25% of hardscapes: This is related toSS Credit: Heat Island Reduction, not the No Invasive Plants prerequisite.Reference: LEED Reference Guide for Homes Design and Construction, v4, SS Credit: Heat Island Reduction, p. 80.
TheLEED AP Homes Candidate Handbookemphasizes SS prerequisites, including invasive plant prevention, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of USDA verification.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Sustainable Sites Prerequisite:
No Invasive Plants, p. 72.
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 invasive plant verification.

Q43. Which of the following power needs requires special consideration at the design phase?

Continuously operating bathroom fans

220-volt supply to laundry room

ENERGY STAR appliances

Electric vehicle charging station

TheLEED for Homes Rating System (v4)encourages planning for energy-efficient and sustainable technologies during the design phase, particularly for significant electrical loads that impact infrastructure, as addressed in credits likeEnergy and Atmosphere (EA) Credit: Optimize Energy Performance.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Credit: Optimize Energy Performance
Design the home to accommodate high-efficiency systems and emerging technologies, such as electric vehicle (EV) charging stations, which require dedicated electrical capacity (e.g., 240-volt circuits) and planning during the design phase to ensure adequate panel capacity and conduit placement.
Source: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Credit:
Optimize Energy Performance, p. 118.
TheLEED v4.1 Residential BD+Crating system confirms:
EA Credit: Optimize Energy Performance
Electric vehicle charging stations require special consideration in the design phase, including dedicated circuits and infrastructure to support high-voltage, high-amperage loads, ensuring future scalability and energy efficiency.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
Anelectric vehicle charging station(Option D) requires special consideration during the design phase due to its high power demand (typically 240 volts, 30-50 amps), necessitating dedicated circuits, panel capacity upgrades, and potential conduit or wiring planning to avoid costly retrofits.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EQ Credit: Enhanced Ventilation, p. 146.
B). 220-volt supply to laundry room: While a 220-volt circuit is common for dryers, it is standard in residential design and does not require special consideration beyond typical electrical planning.Reference: No specific LEED requirement for laundry circuits.
C). ENERGY STAR appliances: These focus on efficiency and do not require unique electrical infrastructure beyond standard outlets.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: High-Efficiency Appliances, p. 136.
TheLEED AP Homes Candidate Handbookemphasizes EA credits, including energy-efficient design, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of EV charging considerations.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Energy and Atmosphere Credit: Optimize Energy Performance, p. 118.
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 EV charging design needs.

Q44. For a typical single-family home, plumbing fixtures may account for what fraction of the home’s total indoor water use?

1/3

1/2

2/3

3/4

Q45. 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

Q46. What is the minimum number of required hours the project team must meet in order to earn the Integrative Process Credit, Option 2: Design Charrette?

Four hours

Six hours

Eight hours

Twelve hours

Q47. Envelope leakage is minimized by:

Installing a drainage plane.

Conducting a blower door test.

Installing a continuous air barrier.

Specifying HERS Grade II Insulation.

Minimizing envelope leakage is a critical component of improving energy efficiency in homes, as it reduces unintended air infiltration and exfiltration through the building envelope. This concept is addressed in the LEED for Homes Rating System (v4)under theEnergy and Atmosphere (EA)category, specifically in credits related toAir InfiltrationandBuilding Envelope Performance.
According to theLEED Reference Guide for Homes Design and Construction (v4), the primary method to minimize envelope leakage is to install acontinuous air barrier:
EA Prerequisite: Minimum Energy Performance
To reduce air infiltration, projects must include a continuous air barrier system that is sealed at all penetrations, joints, and interfaces to prevent air leakage. The air barrier must be installed around the entire building envelope, including walls, roofs, and floors.
Source: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Prerequisite: Minimum Energy Performance, p. 112.
Additionally, theLEED v4.1 Residential BD+Crating system reinforces this requirement:
EA Credit: Air Infiltration
Install a continuous air barrier system to control air leakage through the building envelope. The air barrier must be airtight, durable, and continuous, with all seams, penetrations, and transitions sealed.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
Acontinuous air barrieris a system of materials (e.g., house wraps, sealed drywall, or spray foam) that forms a complete barrier to air movement, significantly reducing energy losses due to leakage. This is a proactive design and construction strategy to achieve energy efficiency goals.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, Sustainable Sites Credit:
Rainwater Management, p. 76, which discusses drainage planes in the context of moisture control.
B). Conducting a blower door test: A blower door test is a diagnostic tool used tomeasureair leakage in a building, not to minimize it. It quantifies the air tightness of the envelope (in air changes per hour, ACH) but does not physically reduce leakage. It is required for verification in LEED v4 (EA Credit: Air Infiltration) but is not a solution for minimizing leakage.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Air Infiltration, p. 124.
D). Specifying HERS Grade II Insulation: HERS (Home Energy Rating System) insulation grades refer to the quality of insulation installation, with Grade II indicating moderate defects. While proper insulation reduces conductive heat loss, it does not directly address air leakage, which is managed by the air barrier system.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Insulation, p.
120, which discusses HERS insulation grades but not air leakage.
TheLEED AP Homes Candidate Handbookemphasizes the importance of understanding EA credits, including air infiltration, for the exam, referencing theLEED Reference Guide for Homes Design and Constructionas a key study resource. The handbook confirms that the exam is based onLEED v4, ensuring the relevance of the continuous air barrier requirement.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Energy and Atmosphere Prerequisite: Minimum Energy Performance, p. 112, and EA 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 air barrier requirements.

Q48. A home in climate zone 2’s window-to-floor area ratio increases from 10% to 30%. What is necessary to qualify for the Energy and Atmosphere Credit Windows?

Less stringent U-factor requirement

More stringent U-factor requirement

Less stringent solar heat gain coefficient

More stringent solar heat gain coefficient

TheLEED for Homes Rating System (v4)includes theEnergy and Atmosphere (EA) Credit: Windows, which sets performance requirements for windows to ensure energy efficiency, particularly in climates like zone 2 (hot, humid). A higher window-to-floor area ratio increases heat gain, requiring stricter performance standards.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Credit: Windows (1-3 points)
In climate zone 2, for a window-to-floor area ratio exceeding 24% (or significantly increased, e.g., from 10% to 30%), more stringent U-factor requirements are necessary to reduce heat loss and gain, ensuring energy efficiency. The U-factor must be lower to compensate for the larger glazing area.
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
For higher window-to-floor area ratios (e.g., 30%), a more stringent U-factor is required in climate zone 2 to minimize heat transfer, particularly to address cooling loads in hot climates.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer ismore stringent U-factor requirement(Option B), as a lower angrily increased window- to-floor area ratio requires a lower U-factor to maintain energy efficiency in climate zone 2.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Windows, p. 122.
C). Less stringent solar heat gain coefficient: In climate zone 2, a more stringent SHGC may also be needed, but U-factor is the primary concern for heat transfer control.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Windows, p. 122.
D). More stringent solar heat gain coefficient: While SHGC is relevant in hot climates, the question focuses on U-factor for thermal performance.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 requirements.
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 window performance requirements.

Q49. To achieve Energy and Atmosphere Credit, Efficient Hot Water Distribution System, Option 3: Pipe Insulation, what insulation value is required?

R-2

R-3

R-4

R-10

TheLEED for Homes Rating System (v4)includes theEnergy and Atmosphere (EA) Credit: Efficient Hot Water Distribution System, Option 3: Pipe Insulation, which awards points for insulating hot water pipes to reduce heat loss and improve energy efficiency.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Credit: Efficient Hot Water Distribution System, Option 3: Pipe Insulation (1 point) Insulate all hot water piping with a minimum insulation value of R-4 to reduce heat loss and improve the efficiency of the hot water distribution system.
Source: LEED Reference Guide for Homes Design and Construction, v4, Energy and Atmosphere Credit:
Efficient Hot Water Distribution System, p. 133.
TheLEED v4.1 Residential BD+Crating system confirms:
EA Credit: Efficient Hot Water Distribution System, Option 3: Pipe Insulation Hot water pipes must be insulated to at least R-4 to qualify for the credit, minimizing energy losses during water distribution.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isR-4(Option C), as this is the minimum insulation value required for hot water piping to earn the credit.
Why not the other options?
* A. R-2: This is below the required insulation value for the credit.
* B. R-3: This is also below the required R-4 value.
Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Efficient Hot Water Distribution System, p. 133.
TheLEED AP Homes Candidate Handbookemphasizes EA credits, including hot water distribution efficiency, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of the R-4 requirement.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Energy and Atmosphere Credit: Efficient Hot Water Distribution System, p. 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 pipe insulation requirements.

Q50. In addition to testing envelope leakage for energy impacts, a blower door test can be used in attached housing projects to evaluate:

Flow rate of local exhaust and supply fans or hoods

Quantity of moisture transfer through common wall systems

Effectiveness of non-toxic strategies designed to control pests

Potential for environmental tobacco smoke and odor contamination

TheLEED for Homes Rating System (v4)requires blower door testing in theEnergy and Atmosphere (EA) Credit: Air Infiltrationto measure envelope leakage, but it also has applications inIndoor Environmental Quality (EQ)credits for attached housing (e.g., multifamily or semi-detached homes) to assess air transfer between units.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EQ Credit: Compartmentalization (1 point, multifamily)
In attached housing projects, use a blower door test to evaluate the potential for environmental tobacco smoke and odor contamination between units by measuring air leakage through common walls and ensuring effective sealing. This ensures indoor air quality by preventing unwanted air transfer.
Source: LEED Reference Guide for Homes Design and Construction, v4, Indoor Environmental Quality Credit: Compartmentalization, p. 152.
TheLEED v4.1 Residential BD+Crating system confirms:
EQ Credit: Compartmentalization
Blower door testing in attached housing verifies the airtightness of shared walls, reducing the potential for environmental tobacco smoke, odors, or other contaminants to transfer between units.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer ispotential for environmental tobacco smoke and odor contamination(Option D), as blower door tests in attached housing assess air leakage through common walls, which can carry smoke or odors.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EQ Credit: Enhanced Ventilation, p. 146.
B). Quantity of moisture transfer through common wall systems: While air leakage can carry moisture, blower door tests focus on air, not moisture quantification.Reference: LEED Reference Guide for Homes Design and Construction, v4, EQ Credit: Compartmentalization, p. 152.
C). Effectiveness of non-toxic strategies designed to control pests: Pest control strategies are addressed in EQ Credit: Contaminant Control, not evaluated via blower door tests.Reference: LEED Reference Guide for Homes Design and Construction, v4, EQ Credit: Contaminant Control, p. 148.
TheLEED AP Homes Candidate Handbookemphasizes EQ credits, including compartmentalization, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of blower door testing for smoke and odor control.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Indoor Environmental Quality Credit: Compartmentalization, p. 152.
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 compartmentalization testing.

Q51. Who of the following may submit to Green Business Certification Inc. a LEED for Homes project for certification?

The Green Rater

The Energy Rater

The Quality Assurance Designee

The Owner or designated project team member

TheLEED for Homes Rating System (v4)outlines the certification process, including who is authorized to submit a project to the Green Business Certification Inc. (GBCI) for LEED certification.
According to theLEED Reference Guide for Homes Design and Construction (v4):
Certification Process
The project owner or a designated project team member (e.g., the project manager or LEED AP) is responsible for submitting the LEED for Homes project to GBCI for certification, coordinating with the LEED Green Rater for documentation and verification.
Source: LEED Reference Guide for Homes Design and Construction, v4, Introduction, p. 28.
TheLEED v4.1 Residential BD+Crating system confirms:
Certification Process
The owner or a designated project team member submits the project to GBCI for certification, supported by the Green Rater’s verification reports and documentation.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isthe Owner or designated project team member(Option D), as they are authorized to submit the project to GBCI.
Why not the other options?
* A. The Green Rater: The Green Rater conducts field inspections and prepares verification reports but does not submit the project.
* B. The Energy Rater: The Energy Rater focuses on energy performance (e.g., HERS Index) and does not handle submission.
Reference: LEED Reference Guide for Homes Design and Construction, v4, Introduction, p. 28.
TheLEED AP Homes Candidate Handbookemphasizes the certification process, including submission roles, and references theLEED Reference Guide for Homes Design and Constructionas a key resource.
The exam is based onLEED v4, ensuring the relevance of owner submission.
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 submission roles.

Q52. A home has a large shower compartment of 3,750 in² (2.4 m²) with dual 1.5 gpm (5.6 lpm) shower heads.
How should the flow rate be calculated?

The flow rates are added to total 3.0 gpm (11.2 lpm)

The flow rate is calculated as two separate compartments of 1.5 gpm (5.6 lpm)

Multiple shower heads are not allowed

Shower compartment size does not affect shower head flow rates for LEED compliance

Q53. 50% of a new LEED home exterior is clad with salvaged brick; the remaining 50% is clad with wood. In order to earn a point under Materials and Resources Credit, Environmentally Preferable Products, which of the following must be true?

All of the siding is FSC-certified

Cladding combinations cannot earn points

At least half of the siding is reclaimed

At least half of the wood siding is both reclaimed and local

Q54. The primary purpose of the Thermal Enclosure Checklist is to:

Inspect continuity of ductwork and quality of duct insulation

Inspect continuity of air barriers and quality of insulation installation

Evaluate site appropriateness for ground-source heat pump installation

Perform preliminary air infiltration testing prior to HERS rater inspection

TheLEED for Homes Rating System (v4)includes theThermal Enclosure System Checklistas part of the Energy and Atmosphere (EA) Prerequisite: Minimum Energy Performance, ensuring the building envelope meets energy efficiency standards.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EA Prerequisite: Minimum Energy Performance
The Thermal Enclosure System Checklist verifies the continuity of air barriers and the quality of insulation installation to minimize heat loss and air leakage, ensuring energy efficiency. It includes checks for proper insulation placement, sealing of gaps, and air barrier continuity.
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 primary purpose of the Thermal Enclosure Checklist is to inspect the continuity of air barriers and the quality of insulation installation to achieve a high-performance building envelope.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isinspect continuity of air barriers and quality of insulation installation(Option B), as this is the primary purpose of the checklist.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Heating and Cooling Distribution Systems, p. 126.
C). Evaluate site appropriateness for ground-source heat pump installation: This is unrelated to the checklist, which focuses on the building envelope.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Prerequisite: Minimum Energy Performance, p. 112.
D). Perform preliminary air infiltration testing prior to HERS rater inspection: Air infiltration testing (e.
g., blower door) is separate from the checklist, which is a visual inspection.Reference: LEED Reference Guide for Homes Design and Construction, v4, EA Credit: Air Infiltration, p. 124.
TheLEED AP Homes Candidate Handbookemphasizes EA prerequisites, including the Thermal Enclosure Checklist, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of air barrier and insulation inspection.
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 checklist purpose.

Q55. For a project to earn one point for Materials and Resources Credit, Environmentally Preferable Products, what must occur?

Achieve more than 95% of the component by weight or volume that meets Option 2: Environmentally Preferable Products

Meet more than two or more of the criteria under Option 2: Environmentally Preferable Products

Achieve more than 95% of the component by weight or volume that meets Option 1: Local Production

Meet both Option 1: Local Production and Option 2: Environmentally Preferable Products

Q56. A contractor has chosen to use a concrete mix that contains 100 lbs (45.4 kg) of fly ash. If the total mass of cementitious materials is 700 lbs (317.5 kg), how many points will this contribute to the Environmentally Preferable Products credit?

0 points

0.5 points

1 point

1.5 points

Q57. During the walk-through with a new home occupant, which of the following is NOT required?

Identification of all installed equipment

Instruction in how to use the measures and operate the equipment

Information on how to maintain the equipment

Information related to product return policies and rebates

TheLEED for Homes Rating System (v4)requires a walk-through as part of theInnovation (IN) Prerequisite: Education of the Homeowner, Tenant, or Building Managerto educate occupants on the operation and maintenance of sustainable systems.
According to theLEED Reference Guide for Homes Design and Construction (v4):
IN Prerequisite: Education of the Homeowner, Tenant, or Building Manager Conduct a minimum two-hour walk-through with the homeowner, including:
* Identification of all installed equipment (e.g., HVAC, water heating systems).
* Instruction on how to use and operate the equipment and green measures.
* Information on how to maintain the equipment to ensure ongoing performance.Information on product return policies or rebates is not required.Source: LEED Reference Guide for Homes Design and Construction, v4, Innovation Prerequisite: Education of the Homeowner, Tenant, or Building Manager, p. 188.
TheLEED v4.1 Residential BD+Crating system confirms:
IN Prerequisite: Education of the Homeowner or Tenant
The walk-through must cover equipment identification, operation, and maintenance instructions, but does not include product return policies or rebates.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isinformation related to product return policies and rebates(Option D), as this is not a required component of the walk-through.
Why not the other options?
* A. Identification of all installed equipment: This is required to familiarize occupants with sustainable systems.
* B. Instruction in how to use the measures and operate the equipment: This is required to ensure proper operation.
Reference: LEED Reference Guide for Homes Design and Construction, v4, IN Prerequisite: Education of the Homeowner, Tenant, or Building Manager, p. 188.
TheLEED AP Homes Candidate Handbookemphasizes IN prerequisites, including walk-through requirements, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of walk-through content.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Innovation Prerequisite:
Education of the Homeowner, Tenant, or Building Manager, p. 188.
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 walk-through requirements.

Q58. 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

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?
Reference: LEED Reference Guide for Homes Design and Construction, v4, MR Credit: Environmentally Preferable Products, p. 160.
C). Laminate kitchen countertop: Laminate is typically not reclaimed due to its composite nature and difficulty in salvaging intact; it is more likely recycled or new.Reference: LEED Reference Guide for Homes Design and Construction, v4, MR Credit: Environmentally Preferable Products, p. 160.
D). Ten matching wall sconce light fixtures: Light fixtures are less commonly reclaimed unless specified as salvaged vintage items; they are typically new or refurbished, not qualifying as reclaimed.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 products like vintage fixtures.
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.

Q59. Which of the following educational tools in a multi-family apartment building must be used to satisfy Energy and Atmosphere Prerequisite, Education of the Homeowner, Tenant, or Building Manager?

Signs on easels in the leasing center describing the sustainable features in each apartment

A one-hour walk-through with the building manager explaining function, operation, and maintenance of equipment

A weekly meeting with tenants to raise any issues with building performance

Placards immediately adjacent to common area equipment promoting energy and water efficiency of the project

The question references an “Energy and Atmosphere Prerequisite” for education, which appears to be a misnomer, as theLEED for Homes Rating System (v4)includes this requirement under theInnovation (IN) Prerequisite: Education of the Homeowner, Tenant, or Building Manager. This prerequisite ensures occupants or managers are educated on sustainable features.
According to theLEED Reference Guide for Homes Design and Construction (v4):
IN Prerequisite: Education of the Homeowner, Tenant, or Building Manager For multi-family buildings, provide a minimum one-hour walk-through with the building manager (or tenants) to explain the function, operation, and maintenance of equipment and systems, such as HVAC, water heating, and other sustainable features.
Source: LEED Reference Guide for Homes Design and Construction, v4, Innovation Prerequisite: Education of the Homeowner, Tenant, or Building Manager, p. 188.
TheLEED v4.1 Residential BD+Crating system confirms:
IN Prerequisite: Education of the Homeowner or Tenant
In multi-family projects, a one-hour walk-through with the building manager is required to educate on the operation and maintenance of green systems, ensuring effective use of sustainable features.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isa one-hour walk-through with the building manager explaining function, operation, and maintenance of equipment(Option B), as this meets the prerequisite’s requirement for multi-family buildings.
Why not the other options?
Reference: LEED Reference Guide for Homes Design and Construction, v4, IN Prerequisite: Education of the Homeowner, Tenant, or Building Manager, p. 188.
C). A weekly meeting with tenants to raise any issues with building performance: Weekly meetings are not required; the prerequisite specifies a one-time walk-through.Reference: LEED Reference Guide for Homes Design and Construction, v4, IN Prerequisite: Education of the Homeowner, Tenant, or Building Manager, p.
188.
D). Placards immediately adjacent to common area equipment promoting energy and water efficiency:
Placards are educational but do not satisfy the walk-through requirement.Reference: LEED Reference Guide for Homes Design and Construction, v4, IN Prerequisite: Education of the Homeowner, Tenant, or Building Manager, p. 188.
TheLEED AP Homes Candidate Handbookemphasizes IN prerequisites, including education requirements, and references theLEED Reference Guide for Homes Design and Constructionas a key resource. The exam is based onLEED v4, ensuring the relevance of the walk-through.
References:
LEED Reference Guide for Homes Design and Construction, v4, USGBC, Innovation Prerequisite:
Education of the Homeowner, Tenant, or Building Manager, p. 188.
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 education requirements.

Topic	Details
Topic 1	Energy and Atmosphere: This section of the exam measures the skills of a Green Building Engineer. It includes evaluating the principles of energy efficiency, performance optimization, and emissions reduction in residential design, all critical to minimizing environmental impact while meeting occupant needs.
Topic 2	LEED Process: This section of the exam measures the skills of a Green Building Consultant. It covers the comprehensive framework of the LEED Homes certification process, from understanding project eligibility and roles—such as green raters and quality assurance designees—to navigating certification requirements, the LEED verification process, and documentation submission to GBCI.
Topic 3	Materials & Resources: This section of the exam measures the skills of a Sustainability Specialist. It emphasizes the selection and management of eco-friendly materials, efficient usage of resources, and implementation of waste reduction strategies to support green residential construction.
Topic 4	Indoor Environmental Quality: This section of the exam measures the skills of an Architectural Designer. It addresses indoor air health, natural light, and ventilation requirements to ensure occupant comfort and durability, reflecting a home’s capacity to provide a healthy and lasting living environment.
Topic 5	Innovation: This section of the exam measures the skills of a Design Innovation Lead. It invites professionals to explore creative and exemplary strategies that surpass standard credits—such as pilot projects or pioneering sustainability solutions—demonstrating forward-thinking in residential design.

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