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| Section | Objectives |
|---|---|
| Materials and Resources | - Resource management
|
| Location and Transportation | - Site selection and connectivity
|
| Innovation | - Innovative sustainability practices
|
| Sustainable Sites | - Site development
|
| Energy and Atmosphere | - Energy performance
|
| Indoor Environmental Quality | - Occupant health and comfort
|
| Regional Priority | - Regional environmental priorities
|
| Integrative Process | - Discovery and planning
|
| Water Efficiency | - Water conservation strategies
|
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NEW QUESTION # 170
A contractor is building a retirement community project. 30% of the building's product costs were derived from reused/salvaged materials or met recycled content criteria. Which of the following credits can the LEED AP submit towards certification?
Answer: A
Explanation:
The Materials and Resources Credit, Building Product Disclosure and Optimization - Sourcing of Raw Materials rewards projects that use materials that have optimized extraction processes by limiting or eliminating the extraction of new resources, the reuse of materials or the use of recycled materials1. According to the LEED Reference Guide for Building Design and Construction2, the credit has two options: Option 1. Raw Material Source and Extraction Reporting and Option 2. Leadership Extraction Practices. Option 1 requires the project to use at least 20 permanently installed products from at least five different manufacturers that have publicly released a report from their raw material suppliers which include extraction locations, a commitment to long-term ecologically responsible land use, a commitment to reducing environmental harms from extraction and/or manufacturing processes, and a commitment to meeting applicable standards or programs voluntarily that address responsible sourcing criteria2. Option 2 requires the project to use products that meet at least one of the responsible sourcing criteria below for at least 25%, by cost, of the total value of permanently installed building products in the project:
Extended producer responsibility. Products purchased from a manufacturer (producer) that participates in an extended producer responsibility program or is directly responsible for extended producer responsibility.
Bio-based materials. Bio-based products must meet the Sustainable Agriculture Network's Sustainable Agriculture Standard. Bio-based raw materials must be tested using ASTM Test Method D6866 and be legally harvested, as defined by the exporting and receiving country. Exclude hide products, such as leather and other animal skin material.
Wood products. Wood products must be certified by the Forest Stewardship Council or USGBC-approved equivalent.
Materials reuse. Reused products must include salvaged, refurbished, or reused products.
Recycled content. Recycled content is the sum of postconsumer recycled content plus one-half the preconsumer recycled content, based on cost. Products meeting recycled content criteria are valued at 100% of their cost for the purposes of credit achievement calculation.
USGBC approved program. Other USGBC approved programs meeting leadership extraction criteria.
Therefore, among the given options, only Option A is relevant to the use of reused/salvaged materials or recycled content, as they can contribute to the materials reuse or recycled content criteria under Option 2. Option B is a prerequisite that requires the project to develop and implement a construction and demolition waste management plan that identifies the materials to be diverted from disposal and whether the materials will be sorted on-site or co-mingled2. Option C is a credit that requires the project to use at least 20 different permanently installed products from at least five different manufacturers that use any of the following programs to demonstrate the chemical inventory of the product to at least 0.1% (1000 ppm):
Health Product Declaration. The end use product has a published, complete Health Product Declaration with full disclosure of known hazards in compliance with the Health Product Declaration Open Standard.
Cradle to Cradle. The end use product has been certified at the Cradle to Cradle v2 Basic level or Cradle to Cradle v3 Bronze level.
REACH Optimization. The end use product is compliant with REACH Optimization criteria.
GreenScreen v1.2 Benchmark. The product's chemical ingredients are inventoried using the GreenScreen v1.2 Benchmark.
Declare. The Declare product label must indicate that all ingredients have been disclosed down to 1000 ppm.
Option D is a credit that requires the project to use at least 20 different permanently installed products that have environmental product declarations. The products must be sourced from at least five different manufacturers. The environmental product declarations must conform to ISO 14025, 14040, 14044, and EN 15804 or ISO 21930 and have at least a cradle-to-gate scope2.
References:
LEED Reference Guide for Building Design and Construction v4
Recycled content | U.S. Green Building Council
CS-v4.1 MRc3: Sourcing of Raw Materials | LEEDuser
How to choose the right materials for a LEED project? - GBCE
NEW QUESTION # 171
A building owner installs a building automation system (BAS) to allow programmable load control. Which of the following credits can be pursued because of the installation?
Answer: C
Explanation:
This is because:
A building automation system (BAS) is a system that controls and monitors various aspects of a building's operation, such as lighting, heating, ventilation, air conditioning, security, fire alarm, and energy management1.
A BAS can allow programmable load control (PLC), which is the ability to adjust the power consumption of devices or equipment based on a schedule, a sensor, or an event2.PLC can help reduce the energy demand and cost of a building by optimizing the use of resources and avoiding unnecessary or wasteful consumption3.
The LEED AP BD+C V4 credit for Demand Response requires that buildings have a demand response program that can respond to changes in electricity prices or supply by reducing or shifting the demand for electricity4. A BAS can enable such a program by allowing PLC and other features that can modulate the power usage of devices or equipment in response to market signals or internal conditions.
Therefore, installing a BAS to allow PLC can help achieve the Energy and Atmosphere Credit for Demand Response by reducing the energy demand and cost of a building.
References:1: Building Automation Systems - an overview | ScienceDirect Topics2: Programmable Logic Controllers (PLCs) - an overview | ScienceDirect Topics3: How Programmable Logic Controllers Can Help You Save Money on Your Energy Bills4:LEED V5: Building Design + Construction Guide - U.S. Green Building Council : How Building Automation Systems Can Help You Save Money on Your Energy Bills
NEW QUESTION # 172
An owner has requested that the project team redesign a large office building. As part of the redesign, the owner would like to move the main entrance to the opposite side of the building. Achievement of which credit may be affected by the move?
Answer: D
Explanation:
Achievement of the Location and Transportation Credit, Surrounding Density and Diverse Uses may be affected by the move of the main entrance to the opposite side of the building. This is because the credit requires that the project be located within a minimum density area and within walking distance of diverse uses1. The walking distance is measured from a main functional entry of the project building to the diverse use entry1. If the main functional entry is moved, the distance to the diverse uses may change and affect the credit achievement. The other credits are not affected by the move of the main entrance, as they are based on the location of the project site, not the building entry. The Location and Transportation Credit, High-Priority Site rewards projects that are located on sites that are previously developed, infill, or adjacent to existing development2. The Location and Transportation Credit, Sensitive Land Protection rewards projects that are located on sites that do not contain sensitive land features such as prime farmland, wetlands, or habitats3. The Location and Transportation Credit, LEED for Neighborhood Development Location rewards projects that are located within the boundary of a LEED for Neighborhood Development certified plan4.
Reference:
* Surrounding density and diverse uses, p. 1
* High-priority site, p. 1
* Sensitive land protection, p. 1
* LEED for neighborhood development location, p. 1
NEW QUESTION # 173
What building classification requires the energy model to determine the predicted power usage effectiveness (PUE) for Energy and Atmosphere Prerequisite, Minimum Energy Performance?
Answer: B
Explanation:
This building classification requires the energy model to determine the predicted power usage effectiveness (PUE) for Energy and Atmosphere Prerequisite, Minimum Energy Performance, because data centers have high energy intensity and cooling demand, and PUE is a metric that measures how efficiently a data center uses energy12.
References: = LEED v4: Building Design + Construction Guide, Study Finds No Effect of LEED Certification on Federal Buildings ....
NEW QUESTION # 174
When calculating the reverberation time of a room, which of the following pieces of information is least relevant?
Answer: C
Explanation:
When calculating the reverberation time of a room, the operating sound level of the nearest HVAC equipment is the least relevant piece of information. The reverberation time is the time it takes for the sound to decay by
60 decibels after the source stops emitting sound. The reverberation time depends on the volume and the surface area of the room, as well as the sound absorption coefficients of the materials that cover the surfaces.
The height and width of the room are needed to calculate the volume and the surface area. The noise reduction coefficient of the ceiling surface and the sound absorption coefficient of the floor surface are needed to calculate the total sound absorption of the room. The operating sound level of the nearest HVAC equipment is not relevant for calculating the reverberation time, but it may affect the background noise level and the speech intelligibility in the room.
References:
*LEED V5Reference Guide for Building Design and Construction, Indoor Environmental Quality Credit:
Acoustic Performance, page 7101
*Sounds of Silence: Acoustic Performance inLEED V5.12
NEW QUESTION # 175
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