A design team is working on a new building project and is employing an integrated, whole-building approach. The architects want to increase the size of a glazed opening on the south facing wall.Which team members are first affected by this change?
Answer(s): D
According to the LEED v4: Building Design and Construction Guide, an integrated, whole-building approach is a process that requires collaboration and communication among all project team members and stakeholders throughout all phases of a project, from pre-design to occupancy and operations. The goal of this approach is to optimize the environmental and human health performance of a building as a whole, rather than focusing on individual components or systems. One of the benefits of an integrated, whole-building approach is that it allows the project team to identify and evaluate the interrelationships and trade-offs among various design strategies and decisions, and to optimize the synergies and minimize the conflicts among them. For example, increasing the size of a glazed opening on the south facing wall may have implications for the daylighting, solar heat gain, thermal comfort, energy use, and mechanical system design of the building. Therefore, the team members who are first affected by this change are the mechanical engineers, who are responsible for designing the heating, ventilation, and air conditioning (HVAC) system of the building, and ensuring that it meets the thermal comfort and energy performance requirements of the project. The mechanical engineers may need to adjust the size, type, and location of the HVAC equipment, ductwork, and controls, as well as perform energy modeling and analysis to evaluate the impact of the change on the building's energy consumption and emissions. The mechanical engineers may also need to coordinate with the architects, lighting designers, and other team members to ensure that the change does not compromise the other design goals and criteria of the project.
LEED v4: Building Design + Construction Guide, Integrative Process, Introduction1; LEEDv4: Building Design + Construction Guide, Energy and Atmosphere Credit, Optimize Energy Performance, Requirements2; LEED v4: Building Design + Construction Guide, Indoor Environmental Quality Credit, Thermal Comfort, Requirements3
Who must be a member of the integrated project team for the Integrative Process Prerequisite, Integrative Project Planning and Design?
According to the LEED v4: Building Design + Construction Guide, the owner or an owner's representative must be a member of the integrated project team for the Integrative Process Prerequisite, Integrative Project Planning and Design. The owner or an owner's representative is responsible for establishing the project's vision, goals, budget, and schedule, as well as defining the owner's project requirements (OPR) and participating in the design charrettes and reviews. The owner or an owner's representative also plays a key role in ensuring the continuity and alignment of the project's performance and environmental objectives throughout all phases of the project. The other choices are not mandatory members of the integrated project team, although they may be involved in the integrative process depending on the project's scope and needs. The general contractor is typically hired after the design phase and may not be involved in the predesign and schematic design analyses required by the prerequisite. A LEED AP is a professional who has demonstrated knowledge and experience in applying the LEED rating system, but is not required to be part of the integrated project team, although it is recommended and rewarded by the LEED credit, Integrative Process. The project's mechanical engineer is one of the possible design consultants who may contribute to the integrative process, especially for the energy-related systems analysis, but is not required to be part of the integrated project team.
LEED v4: Building Design + Construction Guide, Integrative Process Prerequisite, Integrative Project Planning and Design, Requirements1
Which of the following plumbing fixtures apply to the calculations in Water Efficiency Prerequisite, Indoor Water Use Reduction?
Answer(s): C
According to the LEED v4: Building Design + Construction Guide, the Water Efficiency Prerequisite, Indoor Water Use Reduction requires the project to reduce the aggregate water consumption from plumbing fixtures and fittings by at least 20% from the baseline. The baseline water consumption is determined by the Energy Policy Act of 1992 and subsequent rulings by the Department of Energy, or a local equivalent for projects outside the U.S. The plumbing fixtures and fittings that apply to the calculations are toilets, urinals, lavatory faucets (both private and public), showerheads, and kitchen sink faucets. Pre-rinse spray valves, dishwashers, and commercial kitchen filling operations faucets are not included in the calculations, as they are considered process water uses. Therefore, the correct answer is C, urinals, public lavatory faucets, kitchen sink faucets.
LEED v4: Building Design + Construction Guide, Water Efficiency Prerequisite, Indoor Water Use Reduction, Requirements
Which of the following strategies will aid in reducing indoor water use?
According to the LEED v4: Building Design + Construction Guide, one of the strategies to reduce indoor water use is to optimize the consumption of showerheads by selecting fixtures that have a flow rate lower than the baseline of 2.0 gallons per minute (gpm) at 80 psi, or a local equivalent for projects outside the U.S. This can help the project achieve the Water Efficiency Prerequisite, Indoor Water Use Reduction, and the Water Efficiency Credit, Indoor Water Use Reduction, by reducing the aggregate water consumption from plumbing fixtures and fittings by at least 20% from the baseline. The other choices are not strategies to reduce indoor water use, because:Designing drip irrigation for landscape is a strategy to reduce outdoor water use, not indoor water use.Using high-efficiency HVAC systems is a strategy to reduce energy use, not water use, although it may have some indirect water savings by reducing the cooling tower water use.Excluding janitor closets in the building is not a feasible or practical strategy, as janitor closets are necessary for cleaning and maintenance purposes, and may also be required by codes or standards.
LEED v4: Building Design + Construction Guide, Water Efficiency Prerequisite, Indoor Water Use Reduction, Requirements1; LEED v4: Building Design + Construction Guide, Water Efficiency Credit, Indoor Water Use Reduction, Requirements1; LEED v4: Building Design + Construction Guide, Energy and Atmosphere Credit, Optimize Energy Performance, Requirements2; LEED v4: Building Design + Construction Guide, Indoor Environmental Quality Credit, Green Cleaning- High-Performance Cleaning Program, Requirements
Water Efficiency Prerequisite, Outdoor Water Use Reduction, Option 2. Reduced Irrigation, requires that a project's landscape water requirement be reduced by what percentage from the calculated baseline for the project site's peak watering month?
According to the LEED v4: Building Design + Construction Guide, the Water Efficiency Prerequisite, Outdoor Water Use Reduction, Option 2. Reduced Irrigation, requires that a project's landscape water requirement be reduced by at least 30% from the calculated baseline for the project site's peak watering month. The baseline is determined by the Environmental Protection Agency (EPA) WaterSense Water Budget Tool, or a local equivalent for projects outside the U.S. The reduction must be achieved through plant species selection and irrigation system efficiency.
LEED v4:Building Design + Construction Guide, Water Efficiency Prerequisite, Outdoor Water Use Reduction, Option 2. Reduced Irrigation, Requirements
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