LEEDuser Glossary

This glossary, which is drawn from our own research as well as the U.S. Green Building Council's LEED reference guides, contains descriptions of terms commonly found in LEED and green building.

2
2-year, 24-hour Design Storm
a
Account Classification
ACH
Acid Rain
Acidification
Adapted vegetation
Adaptive Reuse
Adequate Transit Service
Adjacent Site
Adsorption
Aerosol Adhesive
Aggregate Building
Agrifiber Board
Agrifiber Products
AHU
Air Quality Standards
Air Source Heat Pump
Airborne Particulates
Albedo
albedo
Alternative Daily Cover
Alternative-fuel Vehicles
Ambient Lighting
Ambient Temperature
Ancillary Learning Spaces
Angle of Maximum Candela
Anticorrosive Paints
Appurtenance
Area Median Income
Area-weighted SRI
Arid Watershed
Assembly Recycled Content
ASTM
Attendance Boundary
Audio Frequency
Autocontrol faucets
Automatic Fixture Sensors
b
Baseline Building Performance
Baseline Irrigation Water Use
bay
Biking Network
Binder
Bioaccumulation
Biobased
Biochemical Oxygen Demand
Biological Control
Bioremediation
Bisphenol-A
Blackwater
Bleed-off
Bleed-off Rate
Blowdown
Blower door test
BMP
BOD
Breathing Zone
BREEAM
Brownfield
Btu
Buildable Land
Building Automation System (BAS)
Building Density
Building Engineer
Building Floorspace
Building Footprint
Building Operating Plan
Building Shell
Building-Related Illness
Buildout
Built-Up Roof
c
C&D
C2C
Cadmium
Campus Bus
Car Sharing
CARB
Carbon offset
Cases or Cabinets
CBECS
CDD
CDL
CERCLA
Certified Wood
CFCs
CFL
CGP
Chain-of-Custody
Chemical Runoff
Chemical Treatment
CHP
Chromium
Churn
CIR
Circadian Rhythm
Class I Bikeway
Clerestory Windows
Climate Change
Climate Zone
CO2
Cogeneration
Comfort Criteria
Comingled
Completed Design Area
Composite Wood
Composting Toilets
Compressed Workweek
Concentration Ratio
Conditional Energy Intensity
Conductivity Meter
Construction General Permit
Construction IAQ Management Plan
Construction Waste Management Plan (CWMP)
Conversion Factors
Conversion Losses
Cooling Equipment
Core learning spaces
CRI
Cx
CxA
Cycles of Concentration
d
Daylight Factor
Daylight Glazing
Daylight-Responsive Lighting Controls
Daylighting Sensors
dBA
Declarant
Dedicated Server
Degree-Days 45-Year Average
Densely Occupied Spaces
Density Factor
Design Intent
Design Light Output
Development Footprint
DHW
Differential air pressure
Diffusers
Direct Line of Sight to Perimeter Vision Glazing
Displacement Ventilation
Distributed Water-Heating System
Downstream Equipment
Drip Irrigation
Dual-flush
Durable Goods
Durable Goods Waste Stream
e
EBOM
EC Meter
ECM
Ecological Restoration
Ecologically Appropriate Site Features
Economizer
Economizer Cycle
Ecotoxicity
Efficacy
Electrical Conductivity (EC) Meter
Electrical Engineering
Embodied Energy
EMCS
emergency lighting
Emissivity
Endocrine Disrupter
Energy Intensity
Energy Source-Specific Floorspace
Energy-Related Space Functions
Environmentally Preferable Purchasing
EPP
ESC
ET
ETS
Eutrophication
Ex-situ Remediation
Exemplary performance
Exfiltration
External Overhangs or Awnings
Extraction, harvest or recovery point
f
Faucet aerator
fc
Flat Coatings
Floor Area Ratio
Fluoropolymer
Flushometer
Formaldehyde
FSC
FTE
Fuel-Efficient Vehicles
Full Cutoff
Full Cutoff Luminaire
Full-Cost Accounting
Full-Time Equivalent
Fully Shielded
Functional Entry
Functional Performance Testing
g
Glazing Factor
Graywater
Green cleaning
Green-e
Gross Energy Intensity
gross floor area
Gross Floorspace
Gross Square Footage
Ground Source Heat Pump
h
Halogen Light Bulb
Halons
Hardscape
HCFCs
Heat Island Effect
Heat Pump
Heat-recovery ventilator
Heating Degree-Days
HEPA filters
HERS Index
Hertz
High-Efficiency Particulate Air
Horizontal Footcandles
Horizontal View
hospitality industry
Humid Watershed
Hydrofluorocarbons
i
IAQ
IECC
IFMA
Impervious Surfaces
Imperviousness
Individual occupant spaces
Integrated Design
Integrated Pest Management
Interior Lighting Power Allowance
Interior Non-Structural Components Reuse
IPC
IPMVP
k
KL
kWh
l
Landscape Area
Leakage rate
Learning spaces
LEED Interpretation
Legionella pneumophila
Life Cycle Analysis
Life Cycle Inventory
Life-Cycle assessment
Life-Cycle Cost
lodging
Long Life, Loose Fit
Low-E
Low-Emitting Vehicles
LPD
Lumen
Lux
m
MDF
MDI
MERV
Microclimate Factor
Movable furniture
MSDS
Multi-Occupant Spaces
Multiple Chemical Sensitivity
n
Native Vegetation
Net Project Material Value
NOAA Division
Non-densely occupied spaces
Nonoccupied spaces
Nonpoint Source Pollution
Nonpotable Water
Nonregularly Occupied Space
NPDES
NPV
NRC
o
Occasional Furniture
Occupied spaces
Octave Band
Off-Hours Equipment Reduction
once-through cooling
Ongoing Consumables
Open Space Area
OPR
OSB
p
Parking footprint
Partially Shielded
Percent Lit When Closed
Percent Lit When Open
PFOA
Phenol Formaldehyde
Picogram
Picograms Per Lumen-Hour
Plasticizer
Post-Consumer
Post-Industrial
Potable Water
PPB
PPM
Predevelopment
Preferred Parking
Present Value
Previously developed
private use
Process Water
PSU
public use
q
QC Plan
r
Rainforest Alliance Certification
Rapidly Renewable
Rated Power
Rational Method
RCRA
REC
Regularly occupied spaces
Reverberation
roof area
RT
s
SBS
sealants
Sealed Combustion
sealers
Semiarid Watershed
Setpoints
SHGC
Shielding
Sky Glow
solar reflectance
SOP
Sound Absorption Coefficient
Source Energy
Species Factor
Specular Reflectors
Standard Error
STC
Submeter
Submetering
Systems Furniture
t
TAG
Tenant space
Tertiary Treatment
Tipping Fees
Toe of the Slope
TP
TSS
Tvis
TVOC
u
U-value
Universal Notification
UPC
Upstream Equipment
Urban Heat Island
Urea Formaldehyde
v
VAV
Vertical Footcandles
VFD
VMT
VOCs
w
WFR
Woonerf
x
Xeriscaping
z
ZEV

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