Term
|
Definition
| buildings affect ecosystems: compromised wildlife, unused land, erosion, imprevious surfaces, heat from sun absorbed by buildings and reflected, external lighting pollution, vehicle use-20% greenhouse gas emissions |
|
|
Term
| Overview of LEED Prerequisites and Credits |
|
Definition
| Prerequisite 1, Credits 1, 2, 3, 4.1, 4.2, 4.3, 4.4, 5.1, 5.2, 6.1, 6.2, 7.1, 7.2, 8 |
|
|
Term
| Prerequisite 1 Construction Activity Pollution Prevention- intent |
|
Definition
| intent: reduce pollution from construction by controlling soil erosion, waterway sedimentation, and airborne dust generation. |
|
|
Term
| Prerequisite 1 requirements |
|
Definition
requirements: create an Erosion and Sediment Control (ESC) Plan for construction activity- must conform to 2003 EPA or local standards (most stringent)
follow Construction General Permit (National Pollutant Discharge Elimination System ) for all size of sites |
|
|
Term
| Prerequisite 1 technologies and strategies |
|
Definition
| create erosion and sedimentation control plan during design phase, use temporary and permanent seeding, mulching, earth dikes, silt fencing, sediment traps, and sediment basins |
|
|
Term
|
Definition
submitted as part of Construction Submittal:
follow templates:
1. copies of drawings with erosion and sediment control plans
2. confirmation of compliance with NPDES or local erosion control standards
3. narrative to describe erosion and sedimentation control |
|
|
Term
| Credit 1 Site Selection intent |
|
Definition
| avoid development of inappropriate sites and reduce the environmental impact from the location of a building on a site |
|
|
Term
| Credit 1 Site Selection requirements |
|
Definition
do not develop on:
1. prime farmland
2. previously undeveloped land with elevation 5' above the elevation of the 100-year flood as defined by FEMA
3. land for endangered species
4. within 100' of wetlands, or within setback distances from wetlands (state or local defines-most stringent)
5. previously undeveloped land within 50' of a body of water
6. land which used to be public parkland unless land of equal or greater value is traded |
|
|
Term
| Credit 1 Site Selection technologies and strategies |
|
Definition
| locate appropriate site, design with minimal footprint to minimize disruption of sensitive areas |
|
|
Term
| Credit 1 Site Selection submittal |
|
Definition
design submittal:
templates:
1. provide confirmation that project does not meet any prohibited criteria
AND (under special circumstances)
2. provide narrative to describe any special circumstances or non-standard compliance paths |
|
|
Term
| Credit 2 Development Density and Community Connectivity-intent |
|
Definition
| channel development to urban areas with existing infrastructure, protect greenfields and preserve habitat and natural resources |
|
|
Term
| Credit 2 Development Density and Community Connectivity- requirements |
|
Definition
2 options:
1. development density- construct or renovate a building on a previously developed site and in a community with a minimum density of 60,000 sq.ft. per acre net |
|
|
Term
| Credit 2 Development Density and Community Connectivity- requirements |
|
Definition
2 options:
2. Community Connectivity- construct or renovate a building on previously developed site within 1/2 mile of residential zone with average density of 10 units per acre net and within 1/2 mile of 10 basic services, and with pedestrian access b/w building and services |
|
|
Term
|
Definition
bank, place of worship, convenience grocery, day care, cleaners, fire station, beauty, hardware, laundry, library, medical/dental, senior care, park, pharmacy, post office, restaurant, school, supermarket, theater, community center, fitness center, museum
proximity is determined by drawing 1/2 mile radius around main building entrance on site map |
|
|
Term
| Credit 2 Development Density and Community Connectivity- calculations |
|
Definition
development density= building square footage/project site area > 60,000
density radius 3 x (square root of property area in feet) > 60,000 |
|
|
Term
| Credit 2 Development Density and Community Connectivity- submittal |
|
Definition
Design submittal- option 1: development density:
1. site vicinity plan- project site and surrounding buildings
2. project site area and building area
3. listing of site and building areas for surrounding sites within radius |
|
|
Term
| Credit 2 Development Density and Community Connectivity- submittal |
|
Definition
design submittal: option 2: community connectivity-
1. site vicinity drawing with 1/2 mile radius and locations of services
2. project site and building area
3. listing of services
4. optional narrative with special circumstances |
|
|
Term
| Credit 3 Brownfield Redevelopment- intent |
|
Definition
| rehabilitate damaged sites where development is complicated by environmental contamination, reducing pressure on developed land. |
|
|
Term
| Credit 3 Brownfield Redevelopment- Requirements |
|
Definition
| develop on a contaminated site as defined by ASTM OR on a site defined as a brownfield by government agency |
|
|
Term
| Credit 3 Brownfield Redevelopment- techs and strategies |
|
Definition
| brownfield sites, identify tax incentives and property cost savings, utilize remediation for the site, test for toxicity and hazardous levels of pollution, clean site using technologies |
|
|
Term
| Credit 3 Brownfield Redevelopment- Submittal |
|
Definition
Design submittal-
1. provide confirmation site was contaminated by ASTM or a brownfield by government
2. narrative of contamination and remediation |
|
|
Term
| Credit 4.1 Alternative Transportation- intent |
|
Definition
| reduce pollution and land development impacts from automobile use |
|
|
Term
| Credit 4.1 Alternative Transportation-requirements |
|
Definition
locate project within 1/2 mile of an existing/planned/funded commuter rail, lightrail, or subway station
OR
locate project within 1/4 of one or more stops for two or more public/campus bus lines |
|
|
Term
| Credit 4.1 Alternative Transportation-exemplary performance |
|
Definition
| exemplary performance point for instituting a comprehensive transportation mgmt plan that has reduced automobile use |
|
|
Term
| Credit 4.1 Alternative Transportation-submittal |
|
Definition
design submittal-
1. commuter rail service
-sit vicinity drawing with location of fixed rail stations within 1/2 mile of site
-listing of each fixed rail station with distance from site
2. bus service
-vicinity drawing with location of bus stops within 1/4 mile of site
-listing of buslines serving site vicinity and distances from site
-narrative of special circumstances- i.e. existing building renovation- no control over mass transit-shuttles may be added to achieve this credit |
|
|
Term
| Credit 4.2 Alternative Trans-Bike storage and Changing Rooms- intent |
|
Definition
| reduce pollution and land development impacts from automobile use |
|
|
Term
| Credit 4.2 Alternative Trans-Bike storage and Changing Rooms- requirements |
|
Definition
for commercial/institutional buildings-bike storage within 200 yards for 5% or more of building users and shower and changing facilities for .5% of full time equivalent occupants
OR
for residential buildings- provide covered storage facilities for 15% or more of building occupants |
|
|
Term
| Credit 4.2 Alternative Trans-Bike storage and Changing Rooms-calculations |
|
Definition
full time equivalent is based on a standard 8-hour occupancy period.
FTE Occupants= occupant hours/8
same FTE must be used throughout leed process
FTE + transient occupants at peak time= occupant value for leed calculations |
|
|
Term
| Credit 4.2 Alternative Trans-Bike storage and Changing Rooms- exemplary performance |
|
Definition
| one innovation point for exemplary performance in alternative transportation for having a transportation management plan of reduction of automobile use through multiple options |
|
|
Term
| Credit 4.2 Alternative Trans-Bike storage and Changing Rooms- submittal |
|
Definition
1. FTE occupancy and transient occupancy
2. drawings with locations of bike storage/showers/changing
additional
1. Non-residential: # of changing/shower facilities and distance from entrance
2. Mixed residential and non: confirm # of residential units and residential FTE occupants, confirm # of shower/changing facilities for non-res portion of building and their distance from entry
3. optional narrative if special circumstances |
|
|
Term
| Credit 4.3 Alt. Trans.- Low-emission & fuel-efficient vehicles- intent |
|
Definition
|
|
Term
| Credit 4.3 Alt. Trans.- Low-emission & fuel-efficient vehicles- requirements |
|
Definition
Option 1: provide L-E & F-E vehicles for 3% of Full Time Equivalent and preferred parking
Option 2: Preferred parking for L-E & F-E vehicles for 5% of the total vehicle parking capacity
Option 3: install alternative-fuel refueling stations for 3% of total vehicle parking capacity of site |
|
|
Term
| Credit 4.3 Alt. Trans.- Low-emission & fuel-efficient vehicles-exemplary performance |
|
Definition
| one innovation point for exemplary performance in alternative transportation for having a transportation management plan of reduction of automobile use through multiple options |
|
|
Term
| Credit 4.3 Alt. Trans.- Low-emission & fuel-efficient vehicles- calculations |
|
Definition
| calculations of percentages listed in requirements |
|
|
Term
| Credit 4.3 Alt. Trans.- Low-emission & fuel-efficient vehicles- submittal |
|
Definition
Design submittal:
1. FTE occupancy for building
2. total parking capacity of site
and...
... and optional narrative for special circumstances |
|
|
Term
| Credit 4.3 Alt. Trans.- Low-emission & fuel-efficient vehicles- submittal OPTION 1 |
|
Definition
Design submittal:
1. FTE occupancy for building
2. total parking capacity of site
and...
Option 1:
1. drawings with location of preferred parking
2. quantity, model, make, manufacturer of L-E & F-E cars
3. confirm whether each vehicle is zero-emission of enter ACEEE vehicle score |
|
|
Term
| Credit 4.3 Alt. Trans.- Low-emission & fuel-efficient vehicles- submittal OPTION 2 |
|
Definition
Design submittal:
1. FTE occupancy for building
2. total parking capacity of site
and...
1. drawings with location of preferred parking
2. Confirm # preferred spaces provided |
|
|
Term
| Credit 4.3 Alt. Trans.- Low-emission & fuel-efficient vehicles- submittal OPTION 3 |
|
Definition
Design submittal:
1. FTE occupancy for building
2. total parking capacity of site
and..
1. drawings with locations of refueling stations
2. fuel type, # of stations, fueling capacity for each station for an 8 hr. period |
|
|
Term
| Credit 4.4 Alt. Trans.- Parking Capacity-intent |
|
Definition
| reduce pollution and land development impacts from single occupancy vehicle use |
|
|
Term
| Credit 4.4 Alt. Trans.- Parking Capacity- requirements |
|
Definition
Option 1: Non-residential- size parking capacity to meet but not exceed minimum local zoning, and provide preferred parking for carpools for 5% of total parking
Option 2: Non-residential- for projects that provide parking for less than 5% of FTE building occupants, provide preferred parking for carpools for 5% of total parking space
Option 3: Residential-size parking capacity to not exceed minimum local zoning requirements and provide infrastructure for shared vehicle usage:carpool drop-offs and parking, shuttle service, ride boards, car-share services
Option 4: No new parking |
|
|
Term
| Credit 4.4 Alt. Trans.- Parking Capacity- calculations |
|
Definition
Option 1 non-residential: self-explanatory
Option 2 Non-residential: use FTE- must be the same throughout all LEED credits
Option 3: no calculations beyond local zoning reqs
Option 4: none |
|
|
Term
| Credit 4.4 Alt. Trans.- Parking Capacity- exemplary performance |
|
Definition
| one innovation point for exemplary performance in alternative transportation for having a transportation management plan of reduction of automobile use through multiple options |
|
|
Term
| Credit 4.4 Alt. Trans.- Parking Capacity-submittal |
|
Definition
design submittal
1. FTE occupancy
2. total parking capacity of site
3. confirm the appropriate compliance path
and..
..and narrative with special circumstances |
|
|
Term
| Credit 4.4 Alt. Trans.- Parking Capacity-submittal OPTION 1 |
|
Definition
1. FTE occupancy
2. total parking capacity of site
3. confirm the appropriate compliance path
and..
Option1: non-residential:
1. # of parking spaces required per local code
2. # of carpool spaces on site |
|
|
Term
| Credit 4.4 Alt. Trans.- Parking Capacity-submittal OPTION 2 |
|
Definition
1. FTE occupancy
2. total parking capacity of site
3. confirm the appropriate compliance path
and..
Option 2: non-residential:
1. # of carpool spaces on site |
|
|
Term
| Credit 4.4 Alt. Trans.- Parking Capacity-submittal OPTION 3 |
|
Definition
1. FTE occupancy
2. total parking capacity of site
3. confirm the appropriate compliance path
and..
option 3: residential:
1. description of infrastructure/programs to promote ride sharing |
|
|
Term
| Credit 5.1 Site Development- Protect or Restore Habitat- intent |
|
Definition
| conserve existing natural areas and restore damaged ares to provide habitat and promote biodiversity |
|
|
Term
| Credit 5.1 Site Development- Protect or Restore Habitat- requirements |
|
Definition
1. on greenfield, limit site disturbance to:
-40' beyond building perimeter
-10' beyond walkway, parking surfaces less than 12" in diameter
-15' beyond primary roadway curbs
-25' beyond constructed areas with permeable surfaces
OR
2. previously developed site:
-restore or protect a minimum of 50% site area (excluding footprint) with native or adapted vegetation |
|
|
Term
| Credit 5.1 Site Development- Protect or Restore Habitat- exemplary performance |
|
Definition
| one innovative point for exemplary performance for restoring or protecting a min. of 75% of site area with native or adapted vegetation on previous developed or graded sites |
|
|
Term
| Credit 5.1 Site Development- Protect or Restore Habitat- submittal |
|
Definition
CONSTRUCTION Submittal
1. site area
2. building footprint area
3. narrative describing approach
and..
Greenfield sites: drawings with designated site disturbance boundaries
Previously developed sites: area in sq.ft. that has been restored with planting, copy of landscape plan with planting areas and materials |
|
|
Term
| Credit 5.2 Site Development- Maximize open space- intent |
|
Definition
| provide a high ratio of open space to development footprint to promote biodiversity |
|
|
Term
| Credit 5.2 Site Development- Maximize open space-requirements |
|
Definition
Option 1: reduce the development footprint and/or provide vegetated open space within the project boundary to exceed the local zoning code for the site by 25%
Option 2: for areas with no local zoning reqs, provide vegetated open space area adjacent to the building that is equal to the building footprint
Option 3: where zoning ordinance exists, but there is no requirement for open space (zero), provide vegetated open space equal to 20% of the site area. |
|
|
Term
| Credit 5.2 Site Development- Maximize open space-requirements 2 |
|
Definition
for all options:
1. projects in urban areas earning credit 2, vegetated roof can contribute
2. projects in urban areas earning credit 2, pedestrian oriented hardscape area can contribute to compliance, minimum of 25% open space must be vegetated
3. wetlands or naturally designed ponds can count as open space if side slope gradients are 1:4 (horizontal) or less and are vegetated |
|
|
Term
| Credit 5.2 Site Development- Maximize open space-exemplary performance |
|
Definition
| projects awarded innovation point for doubling the amount of open space required for achievement. 25% would have to be 50% |
|
|
Term
| Credit 5.2 Site Development- Maximize open space- submittal |
|
Definition
Design Submittal:
1. project site area
2. building footprint area
3. copy of drawings highlighting vegetated spaces
4. optional narrative with special circumstances
5. area of the vegetated dedicated open space
Option 1: local zoning required amount of open space |
|
|
Term
| Credit 6.1 Stormwater Design- Quantity Control-intent |
|
Definition
| limit disruption of natural hydrology by reducing impervious cover, increasing on-site infiltration, and managing stormwater runoff |
|
|
Term
| Credit 6.1 Stormwater Design- Quantity Control-requirements 1 |
|
Definition
Existing imperviousness < or = 50%:
implement a stormwater management plan that prevents the post-development peak discharge rate and quantiy from exceeding the pre-development peak discharge rate and quantity for 1 and 2 year 24-hour design storms
or
implement a stormwater management plan that protects receiving stream channels from erosion |
|
|
Term
| Credit 6.1 Stormwater Design- Quantity Control- requirements 2 |
|
Definition
Option 2: existing imperviousness is > 50% :
implement a stormwater management plan that results in a 25% decrease in volume of stormwater runoff from the 2 year 24-hour design storm |
|
|
Term
| Credit 6.1 Stormwater Design- Quantity Control- strategies |
|
Definition
| use vegetated roofs, pervious paving to minimize impervious surfaces |
|
|
Term
|
Definition
| a surface that promotes runoff of precipitation volumes instead of infiltration into the subsurface |
|
|
Term
| Credit 6.1 Stormwater Design- Quantity Control- implementation |
|
Definition
| smaller building footprints, pervious paving materials, stormwater harvesting for reuse, green roofs, bioswales, retention ponds, clustering development to reduce paved surfaces |
|
|
Term
| Credit 6.1 Stormwater Design- Quantity Control- guidelines for capturing and reusing stormwater runoff |
|
Definition
|
|
Term
| Credit 6.1 Stormwater Design- Quantity Control- submittal |
|
Definition
Design submittal.
option 1: pre-development runoff quantity and rate, post-runoff quantity and rate or provide a narrative describing project site conditions, measures taken, and controls to prevent excessive stream velocities and erosion.
option 2: pre-development runoff quantity and rate, post-runoff quantity and rate |
|
|
Term
| Credit 6.2 Stormwater Design- Quality Control- intent |
|
Definition
| reduce or eliminate water pollution by reducing impervious cover, increasing site infiltration, eliminating contaminates, and removing pollutants from runoff. |
|
|
Term
| Credit 6.2 Stormwater Design- Quality Control- requirements |
|
Definition
| implement a stormwater management plan that reduces impervious cover, promotes infiltration, and captures and treats the stormwater runoff from 90% of the average annual rainfall using acceptable best management practices (BMP). |
|
|
Term
| Credit 6.2 Stormwater Design- Quality Control- implementation |
|
Definition
| non-structural measures, structural measures |
|
|
Term
| Credit 6.2 Stormwater Design- Quality Control- calculations |
|
Definition
| describe best management practices, describe how each measure captures/treats 90% of annual rainfall, determine annual rainfall |
|
|
Term
| Credit 6.2 Stormwater Design- Quality Control- calculations 2 |
|
Definition
humid water sheds-40" rainfall per year
semi-arid water sheds-20-40"
arid water sheds-less than 20"
90% of average= 1", .75", .5" |
|
|
Term
| Credit 6.2 Stormwater Design- Quality Control- calculations 3 |
|
Definition
1. BMPs- achieve 80% total suspended solids removal
2. designed to meet state/local standards
or
1. be supported buy in-field performance monitoring/accepted protocol |
|
|
Term
| Credit 6.2 Stormwater Design- Quality Control- submittal |
|
Definition
Design Submittal.
nonstructural: list of BMPs (Best management practices)
structural controls: list of controls and pollutant removal of each
and optional narrative |
|
|
Term
| Credit 7.1 Heat Island Effect- Non-roof-intent |
|
Definition
| reduce heat islands to minimize impact on micro-climate and human and wildlife habitats |
|
|
Term
|
Definition
| occur when warmer temperatures are experience in urban landscapes, due to solar energy retention on constructed surfaces |
|
|
Term
| Credit 7.1 Heat Island Effect- Non-roof-requirements |
|
Definition
Option 1: any combination of below for 50% of site hardscape-
1. shade (within 5 years)
2. paving material with solar reflectance index at least 29
3. open grid pavement system
Option 2:
1. Place minimum of 50% parking undercover, covers with a Solar reflectance index of 29 |
|
|
Term
|
Definition
| SRI- measure of a material's ability to reject solar heat, higher SRI value the cooler the paving choice |
|
|
Term
|
Definition
| defined for LEED, pavement that is less than 50% impervious and contains vegetation in open cells |
|
|
Term
| Credit 7.1 Heat Island Effect- Non-roof-calculations |
|
Definition
option 1:
1. area of non-roof hardscape (T)
2. area of open grid paving (O)
3. area of hardscape with SRI at least 29 (R)
4. shade coverage of hardscape- mean of areas at 10am, noon, and 3pm (S)
5. Qualifying area= (O+R+S)
6. Q must be greater than T/2
option 2: 50% of parking covered or underground |
|
|
Term
| Credit 7.1 Heat Island Effect- Non-roof-exemplary performance |
|
Definition
point for: 100% of impervious surfaces meet SRI, covered, or will be shaded within 5 years
or 100% parking covered |
|
|
Term
| Credit 7.1 Heat Island Effect- Non-roof-submittal |
|
Definition
CONSTRUCTION submittal
1. drawings with vegetation
and calculations for either option
and optional narrative |
|
|
Term
|
Definition
| $40 billion to air-condition buildings a year, 1/6 of electricity |
|
|
Term
|
Definition
|
|
Term
|
Definition
| ratio of radiation emitted by a surface to the radiation emitted by a black body at same temp |
|
|
Term
|
Definition
| parameter between 0 and 1 that indicated the ability of a material to shed infrared radiation |
|
|
Term
| Credit 7.2 Heat Island Effect-roof- intent |
|
Definition
| reduce heat islands to minimize impact on micro-climate and human and wildlife habitats |
|
|
Term
| Credit 7.2 Heat Island Effect-roof-requirements |
|
Definition
Option 1: use roofing materials having an SRI < 78/29 for 75% of roof
78-low-sloped roof <= 2:12
29-steep-sloped roof >=2:12
Option 2: vegetated roof for at least 50% of area
Option 3: install high albedo and vegetated roof that meet :
(area of SRI/.75)+(area of vegetated/.5) >= total roof area |
|
|
Term
| Credit 7.2 Heat Island Effect-roof-submittal |
|
Definition
Design Submittal:
1. drawings of roof to highlight SRI materials/veg
and
Option 1: area of SRI, materials listing with SRI values
Option 2: area of green roof
Option 3: area of green roof, area of SRI material, listing of materials and values
and optional narrative |
|
|
Term
| Credit 8 Light Pollution Reduction-intent |
|
Definition
| minimize light trespass from the building and site, reduce sky-glow to increase night sky access, improve nighttime visibility through glare reduction, and reduce development impact on nocturnal environments |
|
|
Term
| Credit 8 Light Pollution Reduction-requirements |
|
Definition
INTERIOR: angle of maximum candela to hit an opaque wall, not escape outside OR non-emergency lighting to automatically turn off after hours
EXTERIOR: light only areas required for safety |
|
|
Term
| Credit 8 Light Pollution Reduction-requirements- outdoor lighting zone definitions |
|
Definition
LZ1- Dark, park and rural settings
LZ2- Low, residential area
LZ3- Medium, commercial, high-density residential
LZ4- High, major city centers, entertainment districts |
|
|
Term
| Credit 8 Light Pollution Reduction-implementation |
|
Definition
3 main requirements met:
1. interior building lighting
2. exterior lighting power density
3. exterior light distribution |
|
|
Term
|
Definition
| direction in which the luminaire emits the greatest luminous intensity |
|
|
Term
|
Definition
| (fc) unit of illuminance equal to one lumen of light falling on a one-square foot area from a one candela light source at a distance of one foot |
|
|
Term
| Credit 8 Light Pollution Reduction-submittal |
|
Definition
1. drawings of light areas, locations and types of fixtures,
2. materials of buildings opaque where light could escape
no exterior lighting
1. confirm this
exterior lighting
1. complete lighting power density tables
2. confirm site zone classification
3. complete the site lumen calculation on template
narrative |
|
|
