LEED BD+C v4
LTc8: Green Vehicles
- 1 point - Designate 5% of all parking spaces used by the project as preferred parking for green vehicles.
LTc2: Sensitive Land Protection
- 1 point - Option 1 - Locate the development footprint on land that has been previously developed. - Option 2 - Locate the development footprint on land that has been previously developed or that does not meet the following criteria for sensitive land: (Prime farmland, Floodplain, Habitat, Waterbodies, Wetlands)
IEQc8: Quality Views
- 1 point Achieve a direct line of sight to the outdoors via vision glazing for 75% of all regularly occupied floor area. View glazing in the contributing area must provide a clear image of the exterior, not obstructed by frits, fibers, patterned glazing, or added tints that distort color balance. ** 1 point: Exemplary Performance: Meet the requirements for 90% of all regularly occupied area.
LEED Accredited Professional Credit
- 1 point At least one team member shall be a LEED Accredited Professional.
SSc1: Site Assesment
- 1 point Complete and document a site survey or assessment1 that includes the following information: Topography. Hydrology. Climate. Vegetation. Soils, Human use. Views, and Human health effects.
IEQc3: Construction Indoor Air Quality Management Plan
- 1 point Develop and implement an indoor air quality (IAQ) management plan for the construction and preoccupancy phases of the building. The plan must address all of the following. During construction, meet or exceed all applicable recommended control measures of the Sheet Metal and Air Conditioning National Contractors Association (SMACNA) IAQ Guidelines for Occupied Buildings under Construction, 2nd edition, 2007, ANSI/SMACNA 008-2008, Chapter 3. Protect absorptive materials stored on-site and installed from moisture damage. Do not operate permanently installed air-handling equipment during construction unless filtration media with a minimum efficiency reporting value (MERV) of 8, as determined by ASHRAE 52.2-2007, with errata (or equivalent filtration media class of F5 or higher, as defined by CEN Standard EN 779-2002, Particulate Air Filters for General Ventilation, Determination of the Filtration Performance), are installed at each return air grille and return or transfer duct inlet opening such that there is no bypass around the filtration media. Immediately before occupancy, replace all filtration media with the final design filtration media, installed in accordance with the manufacturer's recommendations. Prohibit the use of tobacco products inside the building and within 25 feet (7.5 meters) of the building entrance during construction.
LTc7: Reduced Parking Footprint
- 1 point Do not exceed the minimum local code requirements for parking capacity. Provide parking capacity that is a percentage reduction below the base ratios recommended by the Parking Consultants Council, as shown in the Institute of Transportation Engineers' Transportation Planning Handbook, 3rd edition, Tables 18-2 through 18-4. Case 1. Baseline Location Projects that have not earned points under LT Credit Surrounding Density and Diverse Uses or LT Credit Access to Quality Transit must achieve a 20% reduction from the base ratios. Case 2. Dense and/or Transit-Served Location Projects earning 1 or more points under either LT Credit Surrounding Density and Diverse Uses or LT Credit Access to Quality Transit must achieve a 40% reduction from the base ratios. ** 1 point: Exemplary Performance: Case 1. Achieve a 60% parking reduction from the base ratios. Case 2. Achieve a 80% parking reduction from the base ratios.
IEQc9: Acoustic Performance
- 1 point For all occupied spaces, meet the following requirements, as applicable, for HVAC background noise, sound isolation, reverberation time, and sound reinforcement and masking. HVAC Background Noise, Sound Transmission, Reverberation Time, Sound Reinforcement and Masking Systems. Option 2. Ac oustical Finishes and Site Exterior Noise (1 point) Meet the requirements for acoustical finishes and site exterior noise.
EAc3: Advanced Energy Metering
- 1 point Install advanced energy metering for the following: ·· all whole-building energy sources used by the building; and ·· any individual energy end uses that represent 10% or more of the total annual consumption of the building. The advanced energy metering must have the following characteristics. ·· Meters must be permanently installed, record at intervals of one hour or less, and transmit data to a remote location. ·· Electricity meters must record both consumption and demand. Whole-building electricity meters should record the power factor, if appropriate. ·· The data collection system must use a local area network, building automation system, wireless network, or comparable communication infrastructure. ·· The system must be capable of storing all meter data for at least 36 months. ·· The data must be remotely accessible. ·· All meters in the system must be capable of reporting hourly, daily, monthly, and annual energy use.
WEc4: Water Metering
- 1 point Install permanent water meters for two or more of the following water subsystems, as applicable to the project: Irrigation. Indoor plumbing fixtures and fittings, Domestic hot water, Boiler with aggregate projected annual water use of 100,000 gallons (378 500 liters) or more, or boiler of more than 500,000 BtuH (150 kW), Reclaimed water, and Other process water.
LTc5: Access to Quality Transit
- 1 point Locate any functional entry of the project within a 1/4-mile walking distance of existing or planned bus, streetcar, or rideshare stops, or within a 1/2-mile (800-meter) walking distance of existing or planned bus rapid transit stops, light or heavy rail stations, commuter rail stations, or commuter ferry terminals. Planned stops and stations may count if they are sited, funded, and under construction by the date of the certificate of occupancy and are complete within 24 months of that date. Both weekday and weekend trip minimums must be met. ** 1 point: Exemplary Performance: Double the highest transit service point threshold.
IEQc5:Thermal Comfort
- 1 point Meet the requirements for both thermal comfort design and thermal comfort control. Option 1. ASHRAE St andard 55-2010 Design heating, ventilating, and air-conditioning (HVAC) systems and the building envelope to meet the requirements of ASHRAE Standard 55-2010, Thermal Comfort Conditions for Human Occupancy, with errata or a local equivalent. For natatoriums, demonstrate compliance with ASHRAE HVAC Applications Handbook, 2011 edition, Chapter 5, Places of Assembly, Typical Natatorium Design Conditions, with errata. OR Option 2. ISO and CEN St andards Design HVAC systems and the building envelope to meet the requirements of the applicable standard: ·· ISO 7730:2005, Ergonomics of the Thermal Environment, analytical determination and interpretation of thermal comfort, using calculation of the PMV and PPD indices and local thermal comfort criteria; and ·· CEN Standard EN 15251:2007, Indoor Environmental Input Parameters for Design and Assessment of Energy Performance of Buildings, addressing indoor air quality, thermal environment, lighting, and acoustics, Section A2.
SSc6: Light Pollution Reduction
- 1 point Meet uplight and light trespass requirements, using either the backlight-uplight-glare (BUG) method (Option 1) or the calculation method (Option 2). Projects may use different options for uplight and light trespass. Meet these requirements for all exterior luminaires located inside the project boundary (except those listed under "Exemptions").
EAc6: Enhanced Refrigerant Management
- 1 point Option 1. No Refrigerants or Low-Impact Refrigerants (1 point) Do not use refrigerants, or use only refrigerants (naturally occurring or synthetic) that have an ozone depletion potential (ODP) of zero and a global warming potential (GWP) of less than 50. OR Option 2. Calculation of Refrigerant Impact (1 point) Select refrigerants that are used in heating, ventilating, air-conditioning, and refrigeration (HVAC&R) equipment to minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change. The combination of all new and existing base building and tenant HVAC&R equipment that serve the project must comply with the following formula:
SSc3: Open Space
- 1 point Provide outdoor space greater than or equal to 30% of the total site area (including building footprint). A minimum of 25% of that outdoor space must be vegetated (turf grass does not count as vegetation) or have overhead vegetated canopy.
EAc2: Optimize Energy Performance
- 1 to 18 points Option 1. Whole-Building Energy Simulation (1-18 points except Schools and Healthcare). Analyze efficiency measures during the design process and account for the results in design decision making. Use energy simulation of efficiency opportunities, past energy simulation analyses for similar buildings, or published data (e.g., Advanced Energy Design Guides) from analyses for similar buildings. Analyze efficiency measures, focusing on load reduction and HVAC-related strategies (passive measures are acceptable) appropriate for the facility. Project potential energy savings and holistic project cost implications related to all affected systems. 6%=1 , 8%=2, 10%=3,12%=4,14%=5, 16%=6, 18%=7,20%=8,22%=9,24%=10,26%=11,29%=12,18%=7,20%=8,22%=9,24%=10,26%=11,29%=12,32%=13,35%=14,38%=15,42%=16,46%=17, 50%=18 Option 2. Prescriptive Compliance: ASHRAE Advanced Energy Design Guide (1-6 points). Option 2. Prescriptive Compliance: ASHRAE Advanced Energy Design Guide (1-6 points). To be eligible for Option 2, projects must use Option 2 in EA Prerequisite Minimum Energy Performance. Implement and document compliance with the applicable recommendations and standards in Chapter 4, Design Strategies and Recommendations by Climate Zone, for the appropriate ASHRAE 50% Advanced Energy Design Guide and climate zone. For projects outside the U.S., consult ASHRAE/ASHRAE/IESNA Standard 90.1-2010, Appendixes B and D, to determine the appropriate climate zone. ** 1 point: Exemplary Performance: Option 1. New construction, major renovation, and core and shell projects: Achieve at least 54% energy savings.
LTc3: High Priority Site
- 1 to 2 points - Option 1 - Historic District: Locate the project on an infill location in a historic district. - Option 2 - Locate the project on one of the following: a site listed by the EPA National Priorities List; a Federal Empowerment Zone site; a Federal Enterprise Community site; a Federal Renewal Community site; a Department of the Treasury Community Development Financial Institutions Fund Qualified Low-Income Community (a subset of the New Markets Tax Credit Program); a site in a U.S. Department of Housing and Urban Development's Qualified Census Tract (QCT) or Difficult Development Area (DDA); or a local equivalent program administered at the national level for projects outside the U.S. - Option 3 - Locate on a brownfield where soil or groundwater contamination has been identified, and where the local, state, or national authority requires its remediation. ** 1 point: Exemplary Performance: Pursue Option 2 or 3 in addition to Option 1.
MRc2: Building Product Dislosure and Optimization-- Environmental Product Declarations
- 1 to 2 points Achieve one or more of the options below, for a maximum of 2 points. Option 1. Environmental Product Declaration (EPD) (1 point) Use at least 20 different permanently installed products sourced from at least five different manufacturers that meet one of the disclosure criteria below. Option 2. Multi-Att ribute Optimization (1 point) Use products that comply with one of the criteria below for 50%, by cost, of the total value of permanently installed products in the project. Products will be valued as below. ** 1 point: Exemplary Performance: Option 1. Source at least 40 qualifying products from five manufacturers. Option 2. Purchase 75%, by cost, of permanently installed building products that meet the required attributes.
EAc4: Demand Response
- 1 to 2 points Design building and equipment for participation in demand response programs through load shedding or shifting. On-site electricity generation does not meet the intent of this credit. Case 1. Demand Response Program Available (2 points). Case 2. Demand Response Program Not Available (1 point)
EAc7: Green Power and Carbon Offsets
- 1 to 2 points Engage in a contract for qualified resources that have come online since January 1, 2005, for a minimum of five years, to be delivered at least annually. The contract must specify the provision of at least 50% or 100% of the project's energy from green power, carbon offsets, or renewable energy certificates (RECs). Green power and RECs must be Green-e Energy certified or the equivalent. RECs can only be used to mitigate the effects of Scope 2, electricity use. Carbon offsets may be used to mitigate Scope 1 or Scope 2 emissions on a metric ton of carbon dioxide- equivalent basis and must be Green-e Climate certified, or the equivalent. For U.S. projects, the offsets must be from greenhouse gas emissions reduction projects within the U.S. Determine the percentage of green power or offsets based on the quantity of energy consumed, not the cost. Points for energy from green power or carbon offsets: 50%=1, 100%=2.
WEc3: Cooling Tower Water Use
- 1 to 2 points For cooling towers and evaporative condensers, conduct a one-time potable water analysis, measuring at least the five control parameters listed: Ca = 1000ppm, Total alkalinity = 1000ppm, SiO2 = 100ppm, CI = 250ppm, Conductivity = 2000 uS/cm. Calculate the number of cooling tower cycles by dividing the maximum allowed concentration level of each parameter by the actual concentration level of each parameter found in the potable makeup water. Limit cooling tower cycles to avoid exceeding maximum values for any of these parameters. Maximum number of cycles achieved without exceeding any filtration levels or affecting operation of condenser water system (up to maximum of 10 cycles) = 1, Achieve a minimum 10 cycles by increasing the level of treatment in condenser or make-up water OR Meet the minimum number of cycles to earn 1 point and use a minimum 20% recycled nonpotable water = 2.
IEQc1: Enhanced Indoor Air Quality Strategies
- 1 to 2 points Option 1. Enhanced IAQ St rategies (1 point): Mechanically ventilated spaces, Naturally ventilated spaces, and Mixed-mode systems. Option 2. Additional Enhanced IAQ St rategies (1 point): Mechanically ventilated spaces, Naturally ventilated spaces, and Mixed-mode systems. ** 1 point: Exemplary Performance: Achieve both Option 1 and Option 2 and incorporate an additional Option 2 strategy.
MRc4: Building Product Disclosure and Optimization--Material Ingredients
- 1 to 2 points Option 1. Material Ingredient Reporting (1 point) 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). AND / OR Option 2. Material Ingredient Optimization (1 point) Use products that document their material ingredient optimization using the paths below for at least 25%, by cost, of the total value of permanently installed products in the project. AND / OR Option 3. Product Manufacturer Supply Chain Optimization (1 point) Use building products for at least 25%, by cost, of the total value of permanently installed products in the project ** 1 point: Exemplary Performance: Option 1. Purchase at least 40 permanently installed building products that meet the credit criteria. Option 2. Purchase at least 50%, by cost, of permanently installed building products that meet the credit criteria.
SSc5: Heat Island Reduction
- 1 to 2 points Option 1. Nonroof and Roof (2 points except Healthcare, 1 point Healthcare). Area of Nonroof Measures/0.5+Area of High Reslectance Roof / 0.75 + Area of Vegetated Roof / 0.75 >= Total Site pacing Area + Total Roof Area. Use any combination of the following strategies: Nonroof Measures and High reflectance Roof OR Option 2. Parking under Cover (1 point) Place a minimum of 75% of parking spaces under cover. Any roof used to shade or cover parking must (1) have a three-year aged SRI of at least 32 (if three-year aged value information is not available, use materials with an initial SRI of at least 39 at installation), (2) be a vegetated roof, or (3) be covered by energy generation systems, such as solar thermal collectors, photovoltaics, and wind turbines. ** 1 point: Exemplary Performance: Achieve both Options 1 and 2. Locate 100% of parking under cover.
SSc4: Rainwater Management
- 1 to 2 points Option 1. Percentile of Rainfall Events Path 1. 95th Percentile (2 points except Healthcare, 1 point Healthcare) In a manner best replicating natural site hydrology processes, manage on site the runoff from the developed site for the 95th percentile of regional or local rainfall events using low-impact development (LID) and green infrastructure. OR Path 2. 98th Percentile (3 points except Healthcare, 2 points Healthcare) Achieve Path 1 but for the 98th percentile of regional or local rainfall events, using LID and green infrastructure. OR Path 3. Zero Lot Line projects only—85th Percentile (3 points except Healthcare, 2 points Healthcare) The following requirement applies to zero lot line projects in urban areas with a minimum density of 1.5 FAR. In a manner best replicating natural site hydrology processes, manage on site the runoff from the developed site for the 85th percentile of regional or local rainfall events, using LID and green infrastructure. OR Option 2. Natural Land Cover Conditions (3 points except Healthcare, 2 points Healthcare) Manage on site the annual increase in runoff volume from the natural land cover condition to the postdeveloped condition. ** 1 point: Exemplary Performance: Manage 100% of rainwater that falls within the project boundary.
MRc3: Building Product Disclosure and Optimization--Sourcing of Raw Materials
- 1 to 2 points Option 1. Raw Material Source and Extraction Reporting (1 point) Use at least 20 different permanently installed products from at least five different manufacturers that have publicly released a report from their raw material suppliers which include raw material supplier 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 criteria. Option 2. Leadership Extraction Practices (1 point) Use products that meet at least one of the responsible extraction criteria below for at least 25%, by cost, of the total value of permanently installed building products in the project. ** 1 point: Exemplary Performance: Option 1. Source at least 40 products from five manufacturers. Option 2. Purchase 50%, by cost, of the total value of permanently installed building products that meet the responsible extraction criteria.
SSc2: Site Development - Protect or Restore Habitat
- 1 to 2 points Preserve and protect from all development and construction activity 40% of the greenfield area on the site (if such areas exist). Option 1. On-Site Restoration (2 points except Healthcare, 1 point Healthcare) Using native or adapted vegetation, restore 30% (including the building footprint) of all portions of the site identified as previously developed. Projects that achieve a density of 1.5 floor-area ratio may include vegetated roof surfaces in this calculation if the plants are native or adapted, provide habitat, and promote biodiversity. Restore all disturbed or compacted soils that will be revegetated within the project's development footprint to meet the following requirements. OR Option 2. Financial Support (1 point) Provide financial support equivalent to at least $0.40 per square foot (US$4 per square meter) for the total site area (including the building footprint). Financial support must be provided to a nationally or locally recognized land trust or conservation organization within the same EPA Level III ecoregion or the project's state (or within 100 miles of the project [160 kilometers] for projects outside the U.S.). For U.S. projects, the land trust must be accredited by the Land Trust Alliance. ** 1 point: Exemplary Performance: Option 1. Double the 30% restoration requirement (restore at least 60%). Option 2. Double the financial donation requirement (provide at least $0.80 per square foot or $8.00 per square meter)..
MRc5: Construction and Demolition Waste Management
- 1 to 2 points Recycle and/or salvage nonhazardous construction and demolition materials. Calculations can be by weight or volume but must be consistent throughout. Exclude excavated soil, land-clearing debris, and alternative daily cover (ADC). Include wood waste converted to fuel (biofuel) in the calculations; other types of waste-to-energy are not considered diversion for this credit. However, for projects that cannot meet credit requirements using reuse and recycling methods, waste-to-energy systems may be considered waste diversion if the European Commission Waste Framework Directive 2008/98/EC and Waste Incineration Directive 2000/76/EC are followed and Waste to Energy facilities meet applicable European Committee for Standardization (CEN) EN 303 standards. Option 1. Diversion (1-2 points) Path 1. Divert 50% and Three Material Streams (1 point) Divert at least 50% of the total construction and demolition material; diverted materials must include at least three material streams. OR Path 2. Divert 75% and Four Material Streams (2 points) Divert at least 75% of the total construction and demolition material; diverted materials must include at least four material streams. OR Option 2. Reduction of Total Waste Material (2 points) Do not generate more than 2.5 pounds of construction waste per square foot (12.2 kilograms of waste per square meter) of the building's floor area. ** 1 point: Exemplary Performance: Achieve both Option 1 (either Path 1 or Path 2) and Option 2.
WEc1: Outdoor Water Use Reduction
- 1 to 2 points Reduce outdoor water use through one of the following options. Nonvegetated surfaces, such as permeable or impermeable pavement, should be excluded from landscape area calculations. Athletic fields and playgrounds (if vegetated) and food gardens may be included or excluded at the project team's discretion. Option 1. No Irrigation Required (2 points except Healthcare, 1 point Healthcare) Option 2. Reduced Irrigation (2 points except Healthcare, 1 point Healthcare) Reduce the project's landscape water requirement (LWR) by at least 50% from the calculated baseline for the site's peak watering month. Reductions must first be achieved through plant species selection and irrigation system efficiency as calculated in the Environmental Protection Agency (EPA) WaterSense Water Budget Tool. Additional reductions beyond 30% may be achieved using any combination of efficiency, alternative water sources, and smart scheduling technologies.
IEQc4: Indoor Air Quality Assessment
- 1 to 2 points Select one of the following two options, to be implemented after construction ends and the building has been completely cleaned. All interior finishes, such as millwork, doors, paint, carpet, acoustic tiles, and movable furnishings (e.g., workstations, partitions), must be installed, and major VOC punch list items must be finished. The options cannot be combined. Option 1. Flush-Out (1 point) Path 1. Before Occupancy Install new filtration media and perform a building flush-out by supplying a total air volume of 14,000 cubic feet of outdoor air per square foot (4 267 140 liters per second of outdoor air per square meter) of gross floor area while maintaining an internal temperature of at least 60°F (15°C) and no higher than 80°F (27°C) and relative humidity no higher than 60%. OR Path 2. During Occupancy If occupancy is desired before the flush-out is completed, the space may be occupied only after delivery of a minimum of 3,500 cubic feet of outdoor air per square foot (1 066 260 liters per second of outdoor air per square meter) of gross floor area while maintaining an internal temperature of at least 60°F (15°C) and no higher than 80°F (27°C) and relative humidity no higher than 60%. Once the space is occupied, it must be ventilated at a minimum rate of 0.30 cubic foot per minute (cfm) per square foot of outdoor air (1.5 liters of outside air per second per square meter) or the design minimum outdoor air rate determined in EQ Prerequisite Minimum Indoor Air Quality Performance, whichever is greater. During each day of the flush-out period, ventilation must begin at least three hours before occupancy and continue during occupancy. These conditions must be maintained until a total of 14,000 cubic feet per square foot of outdoor air (4 270 cubic meters of outdoor air per square meter) has been delivered to the space. OR Once the space is occupied, it must be ventilated at a minimum rate of 0.30 cubic foot per minute (cfm) per square foot of outdoor air (1.5 liters of outside air per second per square meter) or the design minimum outdoor air rate determined in EQ Prerequisite Minimum Indoor Air Quality Performance, whichever is greater. During each day of the flush-out period, ventilation must begin at least three hours before occupancy and continue during occupancy. These conditions must be maintained until a total of 14,000 cubic feet per square foot of outdoor air (4 270 cubic meters of outdoor air per square meter) has been delivered to the space. OR Option 2. Air Testing (2 points) After construction ends and before occupancy, but under ventilation conditions typical for occupancy, conduct baseline IAQ testing using protocols consistent with the methods listed in Table 1 for all occupied spaces. Use current versions of ASTM standard methods, EPA compendium methods, or ISO methods, as indicated. Laboratories that conduct the tests for chemical analysis of formaldehyde and volatile organic compounds must be accredited under ISO/IEC 17025 for the test methods they use. Retail projects may conduct the testing within 14 days of occupancy.
IEQc6: Interior Lighting
- 1 to 2 points Select one or both of the following two options. Option 1. Lighting Control (1 point) For at least 90% of individual occupant spaces, provide individual lighting controls that enable occupants to adjust the lighting to suit their individual tasks and preferences, with at least three lighting levels or scenes (on, off, midlevel). Midlevel is 30% to 70% of the maximum illumination level (not including daylight contributions). AND / OR Option 2. Lighting Quality (1 point) A. For all regularly occupied spaces, use light fixtures with a luminance of less than 2,500 cd/m2 between 45 and 90 degrees from nadir. Exceptions include wallwash fixtures properly aimed at walls, as specified by manufacturer's data, indirect uplighting fixtures, provided there is no view down into these uplights from a regularly occupied space above, and any other specific applications (i.e. adjustable fixtures). B. For the entire project, use light sources with a CRI of 80 or higher. Exceptions include lamps or fixtures specifically designed to provide colored lighting for effect, site lighting, or other special use. C. For at least 75% of the total connected lighting load, use light sources that have a rated life (or L70 for LED sources) of at least 24,000 hours (at 3-hour per start, if applicable). D. Use direct-only overhead lighting for 25% or less of the total connected lighting load for all regularly occupied spaces. E. For at least 90% of the regularly occupied floor area, meet or exceed the following thresholds for areaweighted average surface reflectance: 85% for ceilings, 60% for walls, and 25% for floors. F. If furniture is included in the scope of work, select furniture finishes to meet or exceed the following thresholds for area-weighted average surface reflectance: 45% for work surfaces, and 50% for movable partitions. G. For at least 75% of the regularly occupied floor area, meet a ratio of average wall surface illuminance (excluding fenestration) to average work plane (or surface, if defined) illuminance that does not exceed 1:10. Must also meet strategy E, strategy F, or demonstrate area-weighted surface reflectance of at least 60% for walls. H. For at least 75% of the regularly occupied floor area, meet a ratio of average ceiling illuminance (excluding fenestration) to work surface illuminance that does not exceed 1:10. Must also meet option E, option F, or demonstrate area-weighted surface reflectance of at least 85% for ceilings.
IEQc7: Daylight
- 1 to 3 points Provide manual or automatic (with manual override) glare-control devices for all regularly occupied spaces. Select one of the following three options. Option 1. Simulation: Spatial Daylight Autonomy and Annual Sunlight Exposure (2-3 points, 1-2 points Healthcare) Demonstrate through annual computer simulations that spatial daylight autonomy300/50% (sDA300/50%) of at least 55%, 75%, or 90% is achieved. Use regularly occupied floor area. Healthcare projects should use the perimeter areadetermined under EQ Credit Quality Views. Points for daylight floor area: Spatial daylight autonomy: 55%=2, 75%=3. AND Demonstrate through annual computer simulations that annual sunlight exposure1000,250 (ASE1000,250) of no more than 10% is achieved. Use the regularly occupied floor area that is daylit per the sDA300/50% simulations. The sDA and ASE calculation grids should be no more than 2 feet (600 millimeters) square and laid out across the regularly occupied area at a work plane height of 30 inches (76 millimeters) above finished floor (unless otherwise defined). Use an hourly time-step analysis based on typical meteorological year data, or an equivalent, for the nearest available weather station. Include any permanent interior obstructions. Moveable furniture and partitions may be excluded. OR Option 2. Simulation: Illuminance Calculations (1-2 points) Demonstrate through computer modeling that illuminance levels will be between 300 lux and 3,000 lux for 9 a.m. and 3 p.m., both on a clear-sky day at the equinox, for the floor area indicated. Use regularly occupied floor area. Points for daylit floor area: Illuminance calculation: 75%=1, 90%=2. Option 3. Measurement (2-3 points, 1-2 points Healthcare) Achieve illuminance levels between 300 lux and 3,000 lux for the floor area. Points for daylit floor area: Measurement: 75=2, 90=3.
IEQc2: Low-Emitting Materials
- 1 to 3 points This credit includes requirements for product manufacturing as well as project teams. It covers volatile organic compound (VOC) emissions into indoor air and the VOC content of materials, as well as the testing methods by which indoor VOC emissions are determined. Different materials must meet different requirements to be considered compliant for this credit. The building interior and exterior are organized in seven categories, each with different thresholds of compliance. The building interior is defined as everything within the waterproofing membrane. The building exterior is defined as everything outside and inclusive of the primary and secondary weatherproofing system, such as waterproofing membranes and air- and water-resistive barrier materials. Option 1. Product Category Calculations Achieve the threshold level of compliance with emissions and content standards for the number of product categories Thresholds of compliance with emissions and content standards for 7 categories of materials: Interior paints and coatings applied on site, Interior adhesives and sealants applied on site (including flooring adhesive), Flooring, Composite wood, Ceilings, walls, thermal, and acoustic insulation, and Furniture (include in calculations if part of scope of work). Option 2. Budget Calculation Method If some products in a category do not meet the criteria, project teams may use the budget calculation method. Points for percentage compliance, under budget calculation method: >50% and >70%=1, >70% and <90%=2, >90%=3. ** 1 point: Exemplary Performance: Option 1. Earn all points and reach 100% of products. Option 2. Reach 100% of products.
EAc5: Renewable Energy Production
- 1 to 3 points Use renewable energy systems to offset building energy costs. Calculate the percentage of renewable energy with the following equation: % renewable energy = Equivalent cost of usable energy produced by the renewable energy system / Total building annual energy cost. Use the building's annual energy cost, calculated in EA Prerequisite Minimum Energy Performance, if Option 1 was pursued; otherwise use the U.S. Department of Energy's Commercial Buildings Energy Consumption Survey (CBECS) database to estimate energy use and cost. The use of solar gardens or community renewable energy systems is allowed if both of the following requirements are met. Credit is based on the percentage of ownership or percentage of use assigned in the lease agreement. Points for renewable energy: 1%=1, 5%=2, 10%=3. ** 1 point: Exemplary Performance: Renewable energy must account for 15% of total energy. For Core and Shell projects, the threshold is 10%.
Regional Priorty Credits
- 1 to 4 points 6 credits have been identifies but only 4 pints can be achieved. USGBC regional councils identified distint environmental zones within their area and allocated 6 credits - usgbc.org/rpc
LTc4: Surrounding Density and Diverse Areas
- 1 to 5 points - Option 1 - Locate on a site whose surrounding existing density within a 1/4 mile (400-meter) radius of the project boundary meets the values. Use either the "separate residential and nonresidential densities" or "combined density" values. - Option 2 - Construct or renovate a building or a space within a building such that the building's main entrance is within a 1/2 mile walking distance of the main entrance of four to seven (1 point) or eight or more (2 points) existing and publicly available diverse uses.
ID: Innovation and Design
- 1 to 5 points Option 1. Innovation (1 point) Achieve significant, measurable environmental performance using a strategy not addressed in the LEED green building rating system. AND/OR Option 2. Pilot (1 point) Achieve one pilot credit from USGBC's LEED Pilot Credit Library AND/OR Option 3. Additional St rategies Innovation (1-3 points) *Defined in Option 1 above. Pilot (1-3 points) * Meet the requirements of Option 2. Exemplary Performance (1-2 points) *Achieve exemplary performance in an existing LEED v4 prerequisite or credit that allows exemplary performance, as specified in the LEED Reference Guide, v4 edition. An exemplary performance point is typically earned f
WEc2: Indoor Water Use Reduction
- 1 to 6 points Further reduce fixture and fitting water use from the calculated baseline in WE Prerequisite Indoor Water Use Reduction. Additional potable water savings can be earned above the prerequisite level using alternative water sources. Include fixtures and fittings necessary to meet the needs of the occupants. Some of these fittings and fixtures may be outside the project boundary. Points for reducing water use: 25%=1pt, 30%=2pt,35%=3pt, 40%=4pt, 45%=5pt, 50%-6pt. ** 1 point: Exemplary Performance: Achieve 55% water use reduction.
EAc1: Enhanced Commissioning
- 1 to 6 points Implement, or have in place a contract to implement, the following commissioning process activities in addition to those required under EA Prerequisite Fundamental Commissioning and Verification. Option 1. Enhanced Systems Commissioning (3-4 points). Path 1: Enhanced Commissioning (3 points): Complete the following commissioning process (CxP) activities for mechanical, electrical, plumbing, and renewable energy systems and assemblies in accordance with ASHRAE Guideline 0-2005 and ASHRAE Guideline 1.1-2007 for HVAC&R systems, as they relate to energy, water, indoor environmental quality, and durability. Include all enhanced commissioning tasks in the OPR and BOD. Path 2: Enhanced and Monitoring-Based Commissioning (4 points). Achieve Path 1. AND Develop monitoring-based procedures and identify points to be measured and evaluated to assess performance of energy- and water-consuming systems. Include the procedures and measurement points in the commissioning plan. Update the systems manual with any modifications or new settings, and give the reason for any modifications from the original design. AND/OR Complete the following commissioning process (CxP) activities for the building's thermal envelope in accordance with ASHRAE Guideline 0-2005 and the National Institute of Building Sciences (NIBS) Guideline 3-2012, Exterior Enclosure Technical Requirements for the Commissioning Process, as they relate to energy, water, indoor environmental quality, and durability.
LTc6: Bicycle Facilities
- 1point Design or locate the project such that a functional entry or bicycle storage is within a 200-yard (180-meter) walking distance or bicycling distance from a bicycle network that connects to at least one of the following, at least 10 diverse uses, a school or employment center, if the project total floor area is 50% or more residential; or a bus rapid transit stop, light or heavy rail station, commuter rail station, or ferry terminal. All destinations must be within a 3-mile (4800-meter) bicycling distance of the project boundary. Planned bicycle trails or lanes may be counted if they are fully funded by the date of the certificate of occupancyand are scheduled for completion within one year of that date.
MRc1: Building Life-Cycle Impact Reduction
- 2 to 5 points Demonstrate reduced environmental effects during initial project decision-making by reusing existing building resources or demonstrating a reduction in materials use through life-cycle assessment. Achieve one of the following options. Option 1. Historic Building Reuse (5 points BD+C, 6 points Core and Shell) OR Option 2. Renovation of Abandoned or Blighted Building (5 points BD+C, 6 points Core and Shell) OR Option 3. Building and Material Reuse (2-4 points BD+C, 2-5 points Core and Shell) Points for reuse of building materials: 25%=2, 50%=3, 75%=4 OR Option 4. Whole-Building Life-Cycle Assessment (3 points) ** 1 point: Exemplary Performance: Option 1. Not available. Option 2. Not available. Option 3. Reuse 95% of the building. Option 4. Achieve any improvement over the required credit thresholds in all six impact measures.
MPR2: Reasonable Site Boundary
- Building and features primarily used by it's occupants are accurately evaluated. - Site includes: hardscapes, parking, stormwater treatment and landscaping. - Boundary should be contiguous land and gross floor area should be no less than 2% gross land area within the boundary.
LTc1: LEED for Neighborhood Development Location
- Earn up to 16 points (LEED ND levels: Certified = 8, Silver = 10, Gold = 12, Platinum = 16) - Locate the project within the boundary of a development certified under LEED ND (Stage 2 or Stage 3 under Pilot or 2009 rating system, Certified plan or Certified under LEED v4 rating system) - Can not earn Location and Transportation credits if pursuing this option
Healthcare Prerequisite: Integrative Project Planning and Design
- Maximize opportunities for integrated, cost-effective adoption of green design and construction strategies, emphasizing human health as fundamental evaluative criterion for building design, construction and operational strategies.
MPR3: Project Size Requirements
- Size requirements are all different based on the type of rating system. - Example: BD+C must have a minimum 1,000 square feet of gross floor area
Minimum Program Requirments (MPR)
- Three requirements are mandatory conditions that make a project eligible to pursue LEED certification. - The following three: MPR1: Permanent Location on Existing Land, MPR2: Reasonable Site Boundary, MPR3: Project Size Requirements
Integrative Process
- Uses the knowledge of team members to find the best solutions for a project - Stand-alone credit - Pre-requisite for Healthcare Integrative Project Planning and design - Optional credit for all rating system except LEED for Healthcare - Asks teams to use energy modeling to explore synergies and cost impacts
EAp1: Fundamental Comissioning and Verfication
Complete the following commissioning (Cx) process activities for mechanical, electrical, plumbing, and renewable energy systems and assemblies, in accordance with ASHRAE Guideline 0-2005 and ASHRAE Guideline 1.1-2007 for HVAC&R Systems, as they relate to energy, water, indoor environmental quality, and durability. Requirements for exterior enclosures are limited to inclusion in the owner's project requirements (OPR) and basis of design (BOD), as well as the review of the OPR, BOD and project design. NIBS Guideline 3-2012 for Exterior Enclosures provides additional guidance. The review of the exterior enclosure design may be performed by a qualified member of the design or construction team (or an employee of that firm) who is not directly responsible for design of the building envelope. By the end of the design development phase, engage a commissioning authority. Prepare and maintain a current facilities requirements and operations and maintenance plan that contains the information necessary to operate the building efficiently.
SSp2: Environmental Site Assessment
Conduct a Phase I Environmental Site Assessment as described in ASTM E1527-05 (or a local equivalent) to determine whether environmental contamination exists at the site. If contamination is suspected, conduct a Phase II Environmental Site Assessment as described in ASTM E1903-11 (or a local equivalent). If a site is contaminated, remediate the site to meet local, state, or national environmental protection agency region residential (unrestricted) standards, whichever are most stringent.
SSp1: Construction Activity Pollution Prevention
Create and implement an erosion and sedimentation control plan for all construction activities associated with the project. The plan must conform to the erosion and sedimentation requirements of the 2012 U.S. Environmental Protection Agency (EPA) Construction General Permit (CGP) or local equivalent, whichever is more stringent. Projects must apply the CGP regardless of size. The plan must describe the measures implemented.
MRp2: Construction and Demolition Waste Management Planning
Develop and implement a construction and demolition waste management plan: ·· Establish waste diversion goals for the project by identifying at least five materials (both structural and nonstructural) targeted for diversion. Approximate a percentage of the overall project waste that these materials represent. ·· Specify whether materials will be separated or commingled and describe the diversion strategies planned for the project. Describe where the material will be taken and how the recycling facility will process the material. Provide a final report detailing all major waste streams generated, including disposal and diversion rates. Alternative daily cover (ADC) does not qualify as material diverted from disposal. Land-clearing debris is not considered construction, demolition, or renovation waste that can contribute to waste diversion.
EAp4: Fundamental Refrigerant Management
Do not use chlorofluorocarbon (CFC)-based refrigerants in new heating, ventilating, air-conditioning, and refrigeration (HVAC&R) systems. When reusing existing HVAC&R equipment, complete a comprehensive CFC phase-out conversion before project completion. Phase-out plans extending beyond the project completion date will be considered on their merits. Existing small HVAC&R units (defined as containing less than 0.5 pound [225 grams] of refrigerant) and other equipment, such as standard refrigerators, small water coolers, and any other equipment that contains less than 0.5 pound (225 grams) of refrigerant, are exempt.
WEp2: Indoor Water Use Reduction
For the fixtures and fittings, as applicable to the project scope, reduce aggregate water consumption by 20% from the baseline. Base calculations on the volumes and flow rates. All newly installed toilets, urinals, private lavatory faucets, and showerheads that are eligible for labeling must be WaterSense labeled (or a local equivalent for projects outside the U.S.).
EAp3: Building-Level Energy Metering
Install new or use existing building-level energy meters, or submeters that can be aggregated to provide buildinglevel data representing total building energy consumption (electricity, natural gas, chilled water, steam, fuel oil, propane, biomass, etc). Utility-owned meters capable of aggregating building-level resource use are acceptable. Commit to sharing with USGBC the resulting energy consumption data and electrical demand data (if metered) for a five-year period beginning on the date the project accepts LEED certification. At a minimum, energy consumption must be tracked at one-month intervals. This commitment must carry forward for five years or until the building changes ownership or lessee.
WEp3: Building-Level Water Metering
Install permanent water meters that measure the total potable water use for the building and associated grounds. Meter data must be compiled into monthly and annual summaries; meter readings can be manual or automated. Commit to sharing with USGBC the resulting whole-project water usage data for a five-year period beginning on the date the project accepts LEED certification or typical occupancy, whichever comes first. This commitment must carry forward for five years or until the building changes ownership or lessee.
IEQp1: Minimum Indoor Air Quality Performance
Meet the requirements for both ventilation and monitoring. Ventilation: Mechanically Ventilated Spaces. Option 1. ASHRAE St andard 62.1-2010. Option 2. CEN St andards EN 15251-2007 and EN 13779-2007. Naturally Ventilated Spaces. All Spaces. Monitoring.
MPR1: Permanent Location on Existing Land
Must be from a consistent location to trend pattern over in order to measure building energy and water use.
EAp2: Minimum Energy Performance
Option 1. Whole-Building Energy Simulation: Demonstrate an improvement of 5% for new construction, 3% for major renovations, or 2% for core and shell projects in the proposed building performance rating compared with the baseline building performance rating. Calculate the baseline building performance according to ANSI/ASHRAE/IESNA Standard 90.1-2010, Appendix G, with errata (or a USGBC-approved equivalent standard for projects outside the U.S.), using a simulation model. Projects must meet the minimum percentage savings before taking credit for renewable energy systems. Document the energy modeling input assumptions for unregulated loads. Unregulated loads should be modeled accurately to reflect the actual expected energy consumption of the building. If unregulated loads are not identical for both the baseline and the proposed building performance rating, and the simulation program cannot accurately model the savings, follow the exceptional calculation method (ANSI/ASHRAE/IESNA Standard 90.1-2010, G2.5). Alternatively, use the COMNET Modeling Guidelines and Procedures to document measures that reduce unregulated loads. OR Option 2. Prescriptive Compliance: ASHRAE 50% Advanced Energy Design Guide. Comply with the mandatory and prescriptive provisions of ANSI/ASHRAE/IESNA Standard 90.1-2010, with errata (or a USGBC-approved equivalent standard for projects outside the U.S.). Comply with the HVAC and service water heating requirements, including equipment efficiency, economizers, ventilation, and ducts and dampers, in Chapter 4, Design Strategies and Recommendations by Climate Zone, for the appropriate ASHRAE 50% Advanced Energy Design Guide and climate zone: Option 3. Prescriptive Compliance: Advanced Buildings™ Core Performance™ Guide Comply with the mandatory and prescriptive provisions of ANSI/ASHRAE/IESNA Standard 90.1-2010, with errata (or USGBC approved equivalent standard for projects outside the U.S.). Comply with Section 1: Design Process Strategies, Section 2: Core Performance Requirements, and the following three strategies from Section 3: Enhanced Performance Strategies, as applicable. Where standards conflict, follow the more stringent of the two. For projects outside the U.S., consult ASHRAE/ASHRAE/IESNA Standard 90.1-2010, Appendixes B and D, to determine the appropriate climate zone. To be eligible for Option 3, the project must be less than 100,000 square feet (9 290 square meters).
IEQp2: Environmental Tobacco Smoke Control
Prohibit smoking inside the building. Prohibit smoking outside the building except in designated smoking areas located at least 25 feet (7.5 meters) from all entries, outdoor air intakes, and operable windows. Also prohibit smoking outside the property line in spaces used for business purposes. If the requirement to prohibit smoking within 25 feet (7.5 meters) cannot be implemented because of code, provide documentation of these regulations. Signage must be posted within 10 feet (3 meters) of all building entrances indicating the no-smoking policy. Option 2. Compartmentalization of Smoking Areas Prohibit smoking inside all common areas of the building. The prohibition must be communicated in building rental or lease agreements or condo or coop association covenants and restrictions. Make provisions for enforcement. Prohibit smoking outside the building except in designated smoking areas located at least 25 feet (7.5 meters) from all entries, outdoor air intakes, and operable windows. The no-smoking policy also applies to spaces outside the property line used for business purposes. If the requirement to prohibit smoking within 25 feet (7.5 meters) cannot be implemented because of code, provide documentation of these regulations. Signage must be posted within 10 feet (3 meters) of all building entrances indicating the no-smoking policy
MRp1: Storage and Collection of Recyclables
Provide dedicated areas accessible to waste haulers and building occupants for the collection and storage of recyclable materials for the entire building. Collection and storage areas may be separate locations. Recyclable materials must include mixed paper, corrugated cardboard, glass, plastics, and metals. Take appropriate measures for the safe collection, storage, and disposal of two of the following: batteries, mercury-containing lamps, and electronic waste.
WEp1: Outdoor Water Use Reduction
Reduce outdoor water use through one of the following options. Nonvegetated surfaces, such as permeable or impermeable pavement, should be excluded from the landscape area calculations. Athletic fields and playgrounds (if vegetated) and food gardens may be included or excluded at the project team's discretion. Option 1. No Irrigation Required. Show that the landscape does not require a permanent irrigation system beyond a maximum two-year establishment period. Option 2. Reduced Irrigation. Reduce the project's landscape water requirement by at least 30% from the calculated baseline for the site's peak watering month. Reductions must be achieved through plant species selection and irrigation system efficiency, as calculated by the Environmental Protection Agency (EPA) WaterSense Water Budget Tool.
