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

D Explanation: The owner or a designated project team member is the entity that initiates the LEED for Homes certification process by registering the project and is ultimately the applicant. While the LEED for Homes Provider organization performs the final administrative step of submitting the reviewed application to the Green Business Certification Inc. (GBCI), they do so on behalf of the project team. The project team drives the entire process, hires the necessary verifiers, and is responsible for the submission's content and goals. Among the choices provided, the owner or designated project team member is the principal party seeking certification and therefore the most correct answer.

Q: To comply with Materials and Resources Prerequisite: Certified Tropical Wood, all wood in the building must be:

A Explanation: The LEED for Homes (2008) prerequisite "MR Prerequisite 1: Certified Wood" is designed to prevent the use of irresponsibly harvested tropical wood. Compliance is achieved if the project meets one of the following conditions: 1) No tropical wood is used in the project at all. 2) Any tropical wood that is used is certified by the Forest Stewardship Council (FSC). Reused or reclaimed wood also meets the prerequisite's intent by avoiding the harvest of new materials. Therefore, for the building to comply, all wood must fall into the categories of being non-tropical, reused, reclaimed, or (if tropical) certified.

Q: A project team targets concrete as a material to receive Environmentally Preferable Products credit for fly ash content. Due to weather conditions, the structural engineer suggests reducing the fly ash content in a small portion of the suspended slab areas to speed the curing process and achieve the required strength. The adjusted calculation shows that reduced fly ash in these areas will result in failure to achieve the targeted point. Which of the following is the most effective strategy that the LEED AP could pursue?

D Explanation: The structural engineer's recommendation is based on achieving the required concrete strength for structural integrity, which cannot be ignored. The issue stems from a conflict between the material's properties (slower curing with fly ash) and the project schedule, exacerbated by weather. The most effective strategy is to address the root cause by adjusting the project constraint that is creating the conflict—in this case, the schedule. Proposing to extend the schedule allows for the necessary curing time, enabling the project to use the specified high fly ash concrete mix, thereby meeting both the structural requirements and the LEED credit goals. This represents a classic integrative process solution, balancing competing project demands.

Q: 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?

C Explanation: The LEED for Homes v4 rating system, under MR Credit 2: Environmentally Preferable Products, allows projects to earn points by using materials that meet specific environmental criteria. Siding is one of the eligible product categories. To earn the first tier of points (0.5 points) for this category, at least 50% of the product, calculated by cost or area, must be an Environmentally Preferable Product (EPP). The prompt states that 50% of the home's exterior is clad with salvaged brick. "Salvaged" or "reclaimed" materials are a primary type of EPP. Therefore, the project already meets the 50% threshold with the brick alone, qualifying it to earn a point.

Q: Which important factors must be considered when calculating the design landscape water requirements?

B Explanation: The calculation of design landscape water requirements, particularly as prescribed by the LEED for Homes v4 rating system, is based on the EPA WaterSense Water Budget Tool. This tool's core formula relies on three primary factors: reference evapotranspiration (ETo), which is determined by the local microclimate; the landscape coefficient (KL), which is a function of the water needs of the chosen vegetation selection (species factor); and the overall irrigation efficiency (IE), which is determined by the irrigation type (e.g., drip, spray). These variables directly quantify the amount of water a landscape needs and how efficiently it will be delivered, forming the basis of the water budget calculation.

Q: A project team wants to earn credit for Location and Transportation Credit, Site Selection, Option 3: Open Space. A qualifying lot should be located within:

C Explanation: To achieve Location and Transportation (LT) Credit: Site Selection, Option 3, the project must be located within a 1/2 mile (800 meters) walking distance of a park or open space that is at least 3/4 acre (0.3 hectare). The open space can be composed of up to three parcels, provided each is at least 1/4 acre and they are contiguous. Option C meets these criteria: the home is within the 1/2 mile distance limit, and the two parcels (a 1/2 acre pond/walkway and a 1/4 acre park) are both over the minimum parcel size and sum to the required 3/4 acre total. Parcels separated by a street are considered contiguous.

Q: To earn credit for Energy and Atmosphere Credit, Space Heating and Cooling Equipment, the HVAC equipment must exceed the requirements set by:

A Explanation: The LEED for Homes rating system is structured to build upon the U.S. Environmental Protection Agency's (EPA) ENERGY STAR for Homes program. Earning the ENERGY STAR for Homes label is a prerequisite (EA Prerequisite 2). The credit for Space Heating and Cooling Equipment (EA Credit 3 in LEED for Homes v2008) specifically awards points for selecting equipment that meets or exceeds the efficiency levels defined in the ENERGY STAR for Homes Program Requirements. The Prescriptive Path within ENERGY STAR provides the specific efficiency ratings (e.g., SEER, HSPF, AFUE) that serve as the baseline which must be met or exceeded for credit achievement.

Question 1

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

Accepted Answer

C

Explanation: According to foundational data from the U.S. Environmental Protection Agency (EPA) WaterSense program, which informs the LEED rating systems, the primary indoor plumbing fixtures are the largest water consumers in a typical home. Toilets account for approximately 24%, showers for 20%, and faucets for 19% of indoor water use. The sum of these fixtures is 63%, which is most closely approximated by the fraction 2/3 (66.7%). The LEED for Homes rating system heavily focuses its Water Efficiency (WE) credits on reducing water use from these specific fixtures due to their significant collective impact on total consumption.

Question 2

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?

Accepted Answer

A

Explanation: The LEED for Homes v4 SS Credit: Nontoxic Pest Control aims to reduce pesticide use by implementing Integrated Pest Management (IPM) strategies. For termite control in heavily infested areas, the credit outlines several compliance paths. Installing a physical, code-approved termite barrier (such as steel mesh, a sand barrier, or specialized membrane) at the foundation is a primary, non-chemical strategy explicitly listed in the LEED v4 for Homes and Midrise Rating System. This method prevents termites from entering the structure without the use of toxic chemical termiticides, directly fulfilling the credit's intent.

Question 3

A project has a 2,500 ft² (232 m²) roof, 200 ft² (18.58 m²) uncovered patio, 100 ft² (9 m²) walkway, and
800 ft² (74 m²) driveway. The designer has selected ENERGY STAR qualified roofing material for 100%
of the roof and open grid pavers (with 30% grass) for the patio and walkway. The driveway is gray
concrete with an SR of 0.20. What is the percentage of non-absorptive hardscape material, rounded
to the nearest whole number (if necessary)?

Accepted Answer

B

Explanation: LEED-Homes SS Credit 4 (Heat-Island Reduction) requires calculating the percentage of total roof + hardscape area that is “non-absorptive” (solar reflectance ≥ 0.30) or open-grid (> 50 % pervious). Total area examined = 2 500 ft² roof + 200 ft² patio + 100 ft² walkway + 800 ft² driveway = 3 600 ft². Qualifying surfaces • ENERGY STAR roof (SRI ≥ 29) = 2 500 ft² • Open-grid paving is counted at 50 % of its area when the grid openings are ≥ 50 % of the surface (LEED-Homes RG, SS-4) → 0.5 × (200 + 100) = 150 ft² • Driveway SR 0.20 (< 0.30) → 0 ft² Total non-absorptive = 2 650 ft². Percentage = 2 650 / 3 600 = 0.736 → 74 % → 75 % when rounded.

Question 4

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

Accepted Answer

D

Explanation: The owner or a designated project team member is the entity that initiates the LEED for Homes certification process by registering the project and is ultimately the applicant. While the LEED for Homes Provider organization performs the final administrative step of submitting the reviewed application to the Green Business Certification Inc. (GBCI), they do so on behalf of the project team. The project team drives the entire process, hires the necessary verifiers, and is responsible for the submission's content and goals. Among the choices provided, the owner or designated project team member is the principal party seeking certification and therefore the most correct answer.

Question 5

To comply with Materials and Resources Prerequisite: Certified Tropical Wood, all wood in the building must be:

Accepted Answer

A

Explanation: The LEED for Homes (2008) prerequisite "MR Prerequisite 1: Certified Wood" is designed to prevent the use of irresponsibly harvested tropical wood. Compliance is achieved if the project meets one of the following conditions: 1) No tropical wood is used in the project at all. 2) Any tropical wood that is used is certified by the Forest Stewardship Council (FSC). Reused or reclaimed wood also meets the prerequisite's intent by avoiding the harvest of new materials. Therefore, for the building to comply, all wood must fall into the categories of being non-tropical, reused, reclaimed, or (if tropical) certified.

Question 6

A project team targets concrete as a material to receive Environmentally Preferable Products credit
for fly ash content. Due to weather conditions, the structural engineer suggests reducing the fly ash
content in a small portion of the suspended slab areas to speed the curing process and achieve the
required strength. The adjusted calculation shows that reduced fly ash in these areas will result in
failure to achieve the targeted point. Which of the following is the most effective strategy that the
LEED AP could pursue?

Accepted Answer

D

Explanation: The structural engineer's recommendation is based on achieving the required concrete strength for structural integrity, which cannot be ignored. The issue stems from a conflict between the material's properties (slower curing with fly ash) and the project schedule, exacerbated by weather. The most effective strategy is to address the root cause by adjusting the project constraint that is creating the conflict—in this case, the schedule. Proposing to extend the schedule allows for the necessary curing time, enabling the project to use the specified high fly ash concrete mix, thereby meeting both the structural requirements and the LEED credit goals. This represents a classic integrative process solution, balancing competing project demands.

Question 7

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?

Accepted Answer

C

Explanation: The LEED for Homes v4 rating system, under MR Credit 2: Environmentally Preferable Products, allows projects to earn points by using materials that meet specific environmental criteria. Siding is one of the eligible product categories. To earn the first tier of points (0.5 points) for this category, at least 50% of the product, calculated by cost or area, must be an Environmentally Preferable Product (EPP). The prompt states that 50% of the home's exterior is clad with salvaged brick. "Salvaged" or "reclaimed" materials are a primary type of EPP. Therefore, the project already meets the 50% threshold with the brick alone, qualifying it to earn a point.

Question 8

Which important factors must be considered when calculating the design landscape water requirements?

Accepted Answer

B

Explanation: The calculation of design landscape water requirements, particularly as prescribed by the LEED for Homes v4 rating system, is based on the EPA WaterSense Water Budget Tool. This tool's core formula relies on three primary factors: reference evapotranspiration (ETo), which is determined by the local microclimate; the landscape coefficient (KL), which is a function of the water needs of the chosen vegetation selection (species factor); and the overall irrigation efficiency (IE), which is determined by the irrigation type (e.g., drip, spray). These variables directly quantify the amount of water a landscape needs and how efficiently it will be delivered, forming the basis of the water budget calculation.

Question 9

A project team wants to earn credit for Location and Transportation Credit, Site Selection, Option 3: Open Space. A qualifying lot should be located within:

Accepted Answer

C

Explanation: To achieve Location and Transportation (LT) Credit: Site Selection, Option 3, the project must be located within a 1/2 mile (800 meters) walking distance of a park or open space that is at least 3/4 acre (0.3 hectare). The open space can be composed of up to three parcels, provided each is at least 1/4 acre and they are contiguous. Option C meets these criteria: the home is within the 1/2 mile distance limit, and the two parcels (a 1/2 acre pond/walkway and a 1/4 acre park) are both over the minimum parcel size and sum to the required 3/4 acre total. Parcels separated by a street are considered contiguous.

Question 10

To earn credit for Energy and Atmosphere Credit, Space Heating and Cooling Equipment, the HVAC equipment must exceed the requirements set by:

Accepted Answer

A

Explanation: The LEED for Homes rating system is structured to build upon the U.S. Environmental Protection Agency's (EPA) ENERGY STAR for Homes program. Earning the ENERGY STAR for Homes label is a prerequisite (EA Prerequisite 2). The credit for Space Heating and Cooling Equipment (EA Credit 3 in LEED for Homes v2008) specifically awards points for selecting equipment that meets or exceeds the efficiency levels defined in the ENERGY STAR for Homes Program Requirements. The Prescriptive Path within ENERGY STAR provides the specific efficiency ratings (e.g., SEER, HSPF, AFUE) that serve as the baseline which must be met or exceeded for credit achievement.

Question 11

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

Accepted Answer

B

Explanation: The LEED for Homes rating system requires projects to meet the ventilation rates specified in ASHRAE Standard 62.2, "Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings." The formula in this standard for calculating the required whole-dwelling mechanical ventilation rate is based on two primary factors: the home's conditioned floor area and the number of bedrooms. The number of bedrooms is used as a standardized proxy for the potential number of occupants, ensuring the ventilation system is sized appropriately for the home's designed capacity, regardless of the actual number of current residents.

Question 12

For a site in a town with a population of 10,000 to qualify under Location and Transportation Credit,
Site Selection, Option 2: Infill Development, what portion of the site’s perimeter must border
previously disturbed land?

Accepted Answer

C

Explanation: According to the LEED v4.1 for Homes and Multifamily rating system, to qualify for LT Credit: Site Selection under Option 2, the project must be located on an infill site. An infill site is explicitly defined as a site where at least 75% of the site perimeter borders land that has been previously developed. This calculation excludes any portion of the perimeter that borders a public right-of-way. The intent is to direct development to areas with existing infrastructure and reduce the environmental impacts of sprawl. The population of the town is not a variable in this specific requirement.

Question 13

As a prerequisite for Education of the Homeowner, Tenant, or Building Manager, the operations and maintenance manual must include which of the following?

Accepted Answer

C

Explanation: The LEED for Homes prerequisite "Education of the Homeowner, Tenant, or Building Manager" (or "Building Orientation and Training" in v4.1) mandates the creation of an operations and maintenance (O&M) manual. A core component of this manual is the inclusion of all manufacturer's literature and warranties for the equipment installed in the home. This ensures the occupant has the necessary information to operate, maintain, and troubleshoot systems like HVAC, water heaters, and appliances efficiently, which is critical for achieving the home's designed performance and sustainability goals.

Question 14

What is the intent of Innovation Prerequisite: Preliminary Rating?

Accepted Answer

C

Explanation: The intent of the Innovation (IN) Prerequisite: Preliminary Rating is to formalize the goal-setting process at the beginning of a project. By requiring the project team to complete a preliminary LEED for Homes checklist and establish a target certification level, this prerequisite ensures that sustainable goals are integrated into the project from the earliest stages. This early planning is the foundation of the integrative process, which is proven to be the most effective way to identify and implement green strategies, optimize performance, and manage costs. It allows the team to evaluate synergies between credits and make informed decisions before design and construction are too far advanced.

Question 15

Envelope leakage is measured in air changes per hour (ACH) at what pressure differential?

Accepted Answer

B

Explanation: The standard industry protocol for measuring building envelope leakage, as required by LEED for Homes and ENERGY STAR, is the blower door test. This test measures the airflow required to create a uniform pressure differential of 50 Pascals (Pa) between the interior and exterior of the building. This pressure is equivalent to a wind speed of approximately 20 mph (32 km/h) acting on all surfaces of the building simultaneously. The resulting airflow measurement is then used to calculate the air changes per hour at 50 Pa (ACH50), which is the standard metric for quantifying envelope airtightness.

Free USGBC LEED AP Homes Actual Exam Questions