The material cost for a project is $100,000. What is the minimum material value needed to achieve Materials and Resources Credit, Building Disclosure and Optimization, Sourcing of Raw Materials,Option 2. Leadership ExtractionPractices?
Answer(s): D
According to the LEED v4 Reference Guide for Building Design and Construction, Option 2 of the Sourcing of Raw Materials credit requires using products that meet at least one of the responsible extraction criteria for at least 25%, by cost, of the total value of permanently installed building products in the project. Therefore, for a project with a material cost of $100,000, the minimum material value needed to achieve this option is 25% of $100,000, which is $25,000.
According to the Integrative Process Credit, the discovery phase of energy-related systems should identify
Answer(s): A
According to the LEED v4 Reference Guide for Building Design and Construction, the discovery phase of energy-related systems should identify ventilation rates, along with other factors such as building orientation, envelope attributes, lighting levels, plug and process loads, and programmatic and operational parameters. These factors should be used to create a preliminary "simple box" energy model to evaluate the energy performance of the building and explore potential strategies to reduce energy use. The other options are not relevant for the discovery phase of energy-related systems. Functional performance tests are part of the implementation phase. Thermal comfort ranges are related to indoor environmental quality. Transportation options are related to sustainable sites.
IP Credit Integrative Process, LEED v4 Reference Guide for Building Design and Construction4123
When considering the Indoor Environmental Quality Credit, Thermal Comfort, what is the minimum percentage of building occupants that must have individual comfort controls?
Answer(s): C
According to the LEED v4 Reference Guide for Building Design and Construction, the Thermal Comfort credit requires providing individual comfort controls for at least 50% of individual occupant spaces, and group controls for 100% of shared multioccupant spaces. Individual comfort controls allow occupants to adjust one or more of the following: air temperature, air speed, radiant temperature, or humidity. Group controls are shared by two or more occupants within a thermal zone. The credit aims to promote occupants' productivity, comfort, and well-being by providing quality thermal comfort.
EQ Credit Thermal Comfort, LEED v4 Reference Guide for Building Design and Construction123
Which of the following could be considered diverted construction waste?
According to the LEED v4 Reference Guide for Building Design and Construction, diverted construction waste is defined as "materials that are diverted from disposal in landfills or incineration facilities and are instead reused, recycled, composted, or salvaged"1. Asphalt with aggregate is an example of a material that can be recycled and reused for paving or other applications. Excavated soil and land-clearing debris are excluded from the calculation of the total construction and demolition waste for the MR Credit Building Life-Cycle Impact Reduction. Alternative daily cover is a material that is used to cover the surface of an active landfill at the end of each day to control odors, pests, and litter. It is not considered as diversion because it does not reduce the amount of waste sent to landfills.
MR Credit Building Life-Cycle Impact Reduction, LEED v4 Reference Guide for Building Design and Construction3142
A new five-story building with a 30,000 ft2 (2 800 m2) footprint is being designed on a previously disturbed100,000 ft2 (9 290 m2) site. The remaining on-grade surface will be 35,000 ft2 (3 250 m2) of asphalt parking, and 35,000 ft2 (3 250 m2) of native vegetated open space. To achieve a point for exemplary performance under Option 1 of Sustainable Sites Credit, Site Development - Protect or Restore Habitat, the design team will have to incorporate a native and/or adapted vegetated roof with a minimum area of
According to the LEED v4 Reference Guide for Building Design and Construction, Option 1 of the Site Development - Protect or Restore Habitat credit requires restoring 25% of the site area (including the building footprint) with native or adapted vegetation. To achieve exemplary performance, the project must double the credit requirements and restore 50% of the site area. In this case, the site area is 100,000 ft2 (9 290 m2), so the project must restore 50,000 ft2 (4 645 m2) with vegetation. The project already has 35,000 ft2 (3 250 m2) of native vegetated open space, so it needs to add another 15,000 ft2 (1 395 m2) of vegetation. Since the on-grade surface is fully occupied by the building footprint and the asphalt parking, the only option is to incorporate a vegetated roof. Therefore, the design team will have to incorporate a native and/or adapted vegetated roof with a minimum area of 15,000 ft2 (1 395 m2).
SS Credit Site Development - Protect or Restore Habitat, LEED v4 Reference Guide for Building Design and Construction
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