LEED-AP-BD+C Exam Dumps - LEED AP Building Design + Construction (LEED AP BD+C)

The best design approach for the office building is D. Recover waste energy through exhaust air energy recovery systems. This is because:

Installing glazing with a higher solar heat gain factor would increase the cooling load and energy consumption of the building, especially in an extremely humid climate where heat gain is high1.

Installing photovoltaic panels on the sides of the building would generate electricity from solar radiation, but it would not reduce the cooling load or energy consumption of the building, unless the electricity is used to power a heat pump or other cooling device2.

Increasing outdoor air intake quantities during summer months would provide more fresh air to dilute the indoor pollutants and improve the indoor air quality, but it would not reduce the cooling load or energy consumption of the building, unless it is combined with a ventilation system that recovers waste energy from the exhaust air stream34.

An exhaust air energy recovery system (ERV) is a type of mechanical ventilation that uses a heat exchanger to transfer heat between two streams of air: one that enters the building and one that exits. The ERV pre-cools and dehumidifies the incoming ventilation air by sending the rejected heat into the exhaust airstream to cool the condenser coil at a lower temperature. This reduces both the cooling load and energy consumption of the building, as well as improving its indoor humidity levels34. An ERV can also provide some fresh outdoor air to meet ASHRAE Standard 62 ventilation rates5.

Therefore, an ERV is a more efficient and effective design approach than glazing, photovoltaic panels, or increased outdoor air intake quantities for reducing the annual energy cost for operating an office building in an extremely humid climate and shaded by very large adjacent buildings on all four sides.

The percentage of diverted waste for Materials and Resources Credit, Construction and Demolition Waste Management is calculated by dividing the total weight of diverted materials by the total weight of waste generated1. Diverted materials are those that are reused, recycled, salvaged, or donated2. In this case, the total weight of diverted materials is:

8 tons (7.3 tonnes) of recycled demolition steel and concrete

6 tons (5.4 tonnes) of used furniture donated to a non-profit organization

1 ton (0.9 tonnes) of removed carpet and ceiling tiles sent back to the manufacturer

40% of 3 tons (2.7 tonnes) of commingled scrap, which is 1.2 tons (1.1 tonnes)

The sum of these weights is 16.2 tons (14.7 tonnes). The total weight of waste generated is 20 tons (18.1 tonnes). Therefore, the percentage of diverted waste is:

(16.2 / 20) x 100 = 81%

However, the credit allows for a 10% adjustment for vegetative waste, which is not considered a building material3. Therefore, the percentage of diverted waste after adjustment is:

(81 - 10) = 71%

The closest answer option to this value is B. 75%.

Contractor

The contractor is the project team member who should be integrated early into the design phase to assist with earning the Materials and Resources Prerequisite, Construction and Demolition Waste Management Planning. The contractor is responsible for implementing the waste management plan, which includes estimating the types and quantities of waste materials, identifying the diversion strategies, selecting the waste haulers and recyclers, tracking and documenting the waste diversion performance, and training the subcontractors and workers. The contractor can provide valuable input on how to reduce, reuse, and recycle the construction and demolition waste, as well as identify potential challenges and opportunities for achieving the prerequisite requirements.

Exemplary Performance is not available for Option 2 of Location and Transportation Credit, Surrounding Density and Diverse Uses. According to the LEED v4 BD+C Reference Guide, this credit has two options: Option 1. Surrounding Density (5 points) and Option 2. Diverse Uses (1 point). Exemplary Performance is only available for Option 1, and it requires achieving a surrounding density of at least 405,000 square feet per acre (100,000 square meters per hectare)1. Option 2 does not have any Exemplary Performance criteria, and it only requires locating the project within a 1/2-mile (800-meter) walking distance of at least seven diverse uses2. References:

Credit: Surrounding density and diverse uses | U.S. Green Building Council

Surrounding Density and Diverse Uses - LEED v4

A benefit of earning Regional Priority credits is that the LEED project can achieve more sustainable outcomes by recognizing the issues that are a priority in the project’s location. Regional Priority credits are not new LEED credits, but instead are existing credits that USGBC regional councils and chapters have designated as being particularly important for their areas1. The incentive to achieve the credits is in the form of a bonus point. If an RP base credit is earned, then a bonus point is awarded to the project’s total points1. This way, the project can address the geographically specific environmental, social equity and public health priorities of its location2. References:

Regional priority credit lookup | U.S. Green Building Council

Regional Priority (RP) credits – U.S. Green Building Council

For schools intended for grades eight and below (or ages 14 and below), Option 2. Pedestrian Access requires that at least 50% of the students live no more than a 3/4 mi. (1.20 km) walking distance from a functional entry of a school building. This option aims to encourage schools to locate in areas where students can walk or bike to school, reducing vehicle trips and emissions, and promoting physical activity and health. Option 2 is available only for projects that do not meet the requirements of Option 1. Transit-Served Location, which requires access to quality transit service within a 1/4 mi. (400 m) walking distance for at least 50% of the students. References:

Access to Quality Transit credit in LEED BD+C: Schools v4 - LEED v41

LEED Certification- Requirements for LT CREDIT: ACCESS TO QUALITY TRANSIT2

Understanding the LEED BD+C: Location and Transport credit3

Decreasing lighting power is a strategy that can be used to reduce the internal load of a building. Internal load is the amount of heat generated within a building by its occupants, equipment, and lighting1. Reducing lighting power can lower the internal heat gain and thus decrease the cooling demand and energy consumption of the building2. Other strategies to reduce internal load include using energy-efficient appliances, natural ventilation, daylighting, occupancy sensors, and shading devices3. References:

8.1: Internal Loads - Engineering LibreTexts

Chapter 3: Design Loads for Residential Buildings - HUD User

Internal Heat Gain - an overview | ScienceDirect Topics

Detailed Explanation:

For the Surrounding Density and Diverse Uses credit, LEED requires project teams to calculate residential and non-residential densities within a 1/4-mile (0.40 km) radius of the project boundary. This measurement ensures that projects are located in areas with sufficient infrastructure and services to reduce dependency on vehicles and promote walkability.