Your LEED certification toolkit and expert forum

LEEDuser helps you successfully complete your LEED project certification with tips, checklists, sample documentation, forums, and more.

Looking for help on a specific LEED credit? Browse for it here, or review all of the credits and prerequisites in these LEED rating systems:

  • LEED-NC: New Construction v2009,
  • LEED-CS: Core and Shell v2009,
  • LEED-CI: Commercial Interiors v2009,
  • LEED-Schools v2009,
  • LEED-EBOM: Existing Buildings Operation and Maintenance v2009.
  • See all LEED version 4 (LEED v4) rating systems.
  • See all versions of all LEED rating systems.
  • Discussion Forum

    There are discussions happening on pages across this site, right in the thick of our content. If you don't find your topic, you can start your own discussion.

    Title Comments Most Recent Post Location
    RE: Wood pellets as a Renewable energy source
    in NC 2009 EAc2: On-Site Renewable Energy
    305 Ward Miller
    Chief Environmental Officer
    Alpenglow Advisory
    Tue, Sep 27, 2016
    Different VOC Formats
    in NC 2009 IEQc4.2: Low-Emitting Materials—Paints and Coatings
    547 Lawrence Lile
    Chief Engineer
    Lile Engineering LLC
    Tue, Sep 27, 2016
    RE: n/a
    in NC 2009 SSc5.1: Site Development—Protect or Restore Habitat
    279 Daniel Hartsig
    Sustainability Analyst
    Transwestern
    Tue, Sep 27, 2016
    RE: Reduce Parking Footprint
    in NC-v4: Reduced parking footprint
    28 Hadar Farjo
    Tue, Sep 27, 2016
    United States
    RE: RECs or Carbon Offsets and prices
    in NC-v4: Green power and carbon offsets
    23 Francis Hernandez
    Design / Build Coordinator
    Caddell Construction Co. (DE), LLC
    Tue, Sep 27, 2016
    RE: Contract through Design Team - conflicting information
    in NC 2009 EAp1: Fundamental Commissioning of Building Energy Systems
    340 michelle bombeck
    Project Associate
    O'Brien & Company
    Tue, Sep 27, 2016
    RE: Daylight controls / sensors vs Occupancy Sensors or Both?
    in CI 2009 EAc1.2: Optimize Energy Performance—Lighting Controls
    91 Katie Peterschmidt
    Associate Director, CORE Steward
    Cooper Carry
    Tue, Sep 27, 2016
    United States
    RE: LEED-CI without an energy model
    in CI 2009 EAc3: Measurement and Verification
    175 Marcus Sheffer
    LEED Fellow
    7group
    Tue, Sep 27, 2016
    RE: Illuminated area
    in NC-v4: Light pollution reduction
    71 Glen Phillips
    Director of Sustainable Education
    GreenCE, Inc.
    Tue, Sep 27, 2016
    RE: What defines complex occupancy?
    in PIf3: Occupant and Usage Data
    288 Jeannie Rueter
    Green Building Analyst
    Ausonio Incorporated
    Tue, Sep 27, 2016
    United States
    LEED Basement Boundary
    in MPR3: Must use a reasonable site boundary
    239 Francis McNulty
    OCSC
    Tue, Sep 27, 2016
    Ireland
    Energy Star Portfolio Manager
    in EBOM 2009 EAp2: Minimum Energy Efficiency Performance
    516 Pablo Fortunato Suarez
    Principal ESD Consultant/Architect
    GreenArc Sustainable Building & Architecture
    Tue, Sep 27, 2016
    RE: raised floor
    in CS 2009 IEQc4.3: Low-Emitting Materials—Flooring Systems
    91 Ward Miller
    Chief Environmental Officer
    Alpenglow Advisory
    Tue, Sep 27, 2016
    Filtration Change Prior to Flush-out
    in NC 2009 IEQc3.2: Construction Indoor Air Quality Management Plan—Before Occupancy
    339 Marcia Weekes
    LEED Coordinator
    Ecostrategic Construction Solutions
    Tue, Sep 27, 2016
    United States
    RE: FTE shower access
    in NC 2009 SSc4.2: Alternative Transportation—Bicycle Storage and Changing Rooms
    314 Jens Apel
    Tue, Sep 27, 2016
    Title Comments Most Recent Post Location
    RE: CEE Tier 3A Washer Requirement
    in NC-v4: Indoor water use reduction
    30 David Hubka
    Director - Operations
    Transwestern Sustainability Services
    Mon, Sep 26, 2016
    RE: Counting RECs Towards EAc1
    in NC 2009 EAc1: Optimize Energy Performance
    1,305 Waleed AlGhamdi
    Energy Analyst
    Karpman Consulting
    Mon, Sep 26, 2016
    United States
    RE: Lack of PPM data plus suggestions for improvement
    in Pilot Credit 66: Community Contaminant Prevention—Airborne Releases
    22 Francis Chua
    AIA, LEED AP BD+C
    Project Architect at NK Architects
    Mon, Sep 26, 2016
    100% OA Laboratory System
    in NC-v4: Minimum energy performance
    137 Charles Daze
    Project Engineer
    Burns & McDonnell
    Mon, Sep 26, 2016
    United States
    RE: MRc69 readily attainable in most regions
    in NC-2009: Construction and demolition waste management
    15 Francis Chua
    AIA, LEED AP BD+C
    Project Architect at NK Architects
    Mon, Sep 26, 2016
    62.1 vs 170
    in NC-v4: Minimum indoor air quality performance
    55 Dianne Herrin
    Vice President
    Practical Energy Solutions
    Mon, Sep 26, 2016
    United States
    RE: non smoking hotel rooms
    in NC 2009 IEQp2: Environmental Tobacco Smoke (ETS) Control
    322 Noriko Yasuhara
    Woonerf Inc.
    Sun, Sep 25, 2016
    RE: EQc5 & Fume Hoods
    in NC 2009 IEQc5: Indoor Chemical and Pollutant Source Control
    449 Michelle Halle Stern
    LEED Fellow
    The Green Facilitator
    Sun, Sep 25, 2016
    RE: LCA Part A4 and A5 – Transport to site and Construction installa
    in NC-v4: Building life-cycle impact reduction
    74 Panu Pasanen
    CEO
    Bionova / One Click LCA
    Sun, Sep 25, 2016
    Air Barrier Testing- Commercial
    in EBOM-v4: Minimum energy performance
    48 Justin Tyrrell
    Residential and Multifamily Project Coordinator
    TSI Energy Solutions
    Fri, Sep 23, 2016
    United States
    RE: Fan power in conditioned space
    in NC 2009 EAp2: Minimum Energy Performance
    3,751 Marcus Sheffer
    LEED Fellow
    7group
    Fri, Sep 23, 2016
    RE: ISO versus ASHRAE Option
    in NC-v4: Thermal comfort
    18 Steven Burke
    Sustainability Manager
    SMMA
    Fri, Sep 23, 2016
    RE: Definition of main entrance
    in NC-v4: Bicycle facilities
    48 Marilyn Specht
    Sustainability Consultant
    Integral Group
    Fri, Sep 23, 2016
    RE: NC Tenant Guideline Requirement
    in CS 2009 SSc9: Tenant Design and Construction Guidelines
    52 Summer Minchew
    LEED AP ID+C, O+M
    Ecoimpact Consulting
    Fri, Sep 23, 2016
    RE: ECB vs Appendix G
    in CI 2009 EAc1.3: Optimize Energy Performance—HVAC
    441 Marcus Sheffer
    LEED Fellow
    7group
    Fri, Sep 23, 2016
    RE: Emergency Power
    in CS 2009 EAc5.1: Measurement and Verification—Base Building
    125 Marcus Sheffer
    LEED Fellow
    7group
    Fri, Sep 23, 2016
    10% exemption for fire suppression systems
    in EBOM 2009 EAc5: Enhanced Refrigerant Management
    47 AtSite Inc
    AtSite
    Thu, Sep 22, 2016
    RE: Soil restoration and testing
    in NC-v4: Site development - protect or restore habitat
    15 COWI AS
    Thu, Sep 22, 2016
    RE: Unisex Toilet
    in NC 2009 WEp1: Water Use Reduction—20% Reduction
    765 Lewis Hewton
    Cundall
    Wed, Sep 21, 2016
    DES in non-roof measures
    in CS v4: Heat island reduction
    1 Martin Reynaud
    Wed, Sep 21, 2016
    France
    Title Comments Most Recent Post Location
    RE: Lease Language
    in CS v3 - Appendix 4 - Tenant Lease or Sales Agreement
    31 Chris Freeland
    Architect
    Aller Lingle Massey Architects
    Wed, Jun 8, 2016
    United States
    Default Occupancy for a Health Club
    in Calculating FTEs
    208 PAULA HERNANDEZ
    MRS.
    INGENIERO MARIO PEDRO HERNANDEZ
    Fri, Jun 3, 2016
    Argentina
    RE: GBCI policy on deferring appeal
    in Defer a Design Phase Appeal
    2 Karen Elliott
    LEED AP ID+C & BD+C
    Ecoteric Ltd
    Fri, Jun 3, 2016
    new ACP featuring Dynamic Plaque
    in USGBC Rolls Out LEED Dynamic Plaque, Amid Debate
    37 Tristan Roberts
    LEED AP BD+C, Editorial Director – LEEDuser
    BuildingGreen, Inc.
    Tue, May 24, 2016
    new Alternative Compliance Path
    in Discuss the LEED Dynamic Plaque
    5 Tristan Roberts
    LEED AP BD+C, Editorial Director – LEEDuser
    BuildingGreen, Inc.
    Tue, May 24, 2016
    RE: elevator question
    in Attaining credits through advanced elevator technology?
    8 michelle bombeck
    Project Associate
    O'Brien & Company
    Fri, May 20, 2016
    RE: LEED Dynamic Plaque vs EB Recertification
    in LEED for Existing Buildings Recertification Is Here
    15 Bharati Karmarkar Bhosale
    Operations Manager
    Healthy Buildings
    Thu, May 19, 2016
    RE: precerticfiation
    in LEED-CS v3 Precertification
    39 deborah lucking
    associate
    fentress architects
    Fri, May 6, 2016
    new LEED Online forum
    in LEED 2009 Projects Getting Upgraded to New LEED Online
    26 Tristan Roberts
    LEED AP BD+C, Editorial Director – LEEDuser
    BuildingGreen, Inc.
    Sun, Apr 10, 2016
    new LEED Online forum
    in leedonline.com access - is it possible???
    19 Tristan Roberts
    LEED AP BD+C, Editorial Director – LEEDuser
    BuildingGreen, Inc.
    Sun, Apr 10, 2016
    new forum for LEED Online updates
    in Living with LEED Online - quirks, bugs and hiccups
    138 Tristan Roberts
    LEED AP BD+C, Editorial Director – LEEDuser
    BuildingGreen, Inc.
    Sun, Apr 10, 2016
    RE: The cost of Certification
    in LEED for Healthcare forum - LEED-HC users welcome!
    128 PAULA HERNANDEZ
    MRS.
    INGENIERO MARIO PEDRO HERNANDEZ
    Wed, Apr 6, 2016
    Argentina
    LEED ND Review options
    in What’s New in LEED for Neighborhood Development v4
    4 SOHA YAMANI
    Wed, Mar 30, 2016
    Egypt
    RE: Performance Period Extension, Post-Reviewer's Comments
    in Performance Period
    57 Trista Little
    Sustainability Manager
    YR&G
    Thu, Mar 24, 2016
    RE: should an aerobics area be multi-occupant for IEQc6.2?
    in LEED IEQ Space Matrix - Frequently Asked Questions
    45 Lauren Sparandara
    Sustainability Manager
    Google
    Wed, Mar 23, 2016
    Multiple Building HVAC system
    in Campus and Multiple Buildings Approach
    4 PAULA HERNANDEZ
    MRS.
    INGENIERO MARIO PEDRO HERNANDEZ
    Tue, Mar 22, 2016
    Argentina
    Submitting for a CIR or LEED Interpretation
    in USGBC's New LEED Interpretations Similar to Old Precedent-Setting CIRs
    30 deborah lucking
    associate
    fentress architects
    Thu, Mar 3, 2016
    United States
    RE: Recert vs. new Cert
    in Recertification
    64 Barry Giles
    Founder & CEO, LEED Fellow, BREEAM Fellow
    BuildingWise LLC
    Tue, Mar 1, 2016
    Re-Appeal for a data center
    in Review Appeal
    38 Ed Healy
    ESD Consultant
    hurleypalmerflatt
    Wed, Feb 17, 2016
    Green Globes CIEB Technical Reference Manual?
    in Green Globes Q&A
    10 Albert Minton
    SENSAIRE SERVICES LLC
    Thu, Feb 4, 2016
    United States
    Title Comments Most Recent Post Location
    RE: LCA Part A4 and A5 – Transport to site and Construction installa
    in NC-v4: Building life-cycle impact reduction
    74 Panu Pasanen
    CEO
    Bionova / One Click LCA
    Mon, Sep 19, 2016
    Option 2 Air Testing- Measuring VOCs
    in NC-v4: Indoor air quality assessment
    10 Helene Gotthelf
    Projects Manager
    Institute for the Built Environment
    Mon, Sep 19, 2016
    United States
    Documentation of savings using alternative water sources
    in EBOM-v4: Indoor water use reduction
    7 Noriko Yasuhara
    Woonerf Inc.
    Thu, Sep 15, 2016
    Combination of Survey/Tracking
    in EBOM 2009 SSc4: Alternative Commuting Transportation
    317 Jason Cocek
    Wed, Sep 14, 2016
    RE: Horizzontally attached bldg addition to Non Certified building
    in MPR2: Must be a complete, permanent building or space
    217 Eric Bautista
    Managing Consultant, LEED™ AP (BD+C Specialty)
    EB Project Management
    Wed, Sep 14, 2016
    MASS DEP LCCA
    in Schools-2009: Lead Risk Reduction
    1 Cynthia Kaplan
    Principal
    cmk LEED
    Tue, Sep 13, 2016
    United States
    Slab on grade and concrete piers
    in NC-2009 MRc1.1: Building Reuse—Maintain Existing Walls, Floors and Roof
    110 David Browne
    Architect
    CRA Associates, Inc.
    Tue, Sep 13, 2016
    United States
    Outdoor water use to water mirrors in roof
    in CS v4: Outdoor water use reduction
    1 Tobias Berge
    Department manager
    Sweco
    Tue, Sep 13, 2016
    Sweden
    Campus Project Guidance
    in Schools-NC-v4: Bicycle facilities
    1 Philippa Cameron
    Architect
    CH2M
    Sun, Sep 11, 2016
    Structure and Enclosure
    in NC-v4: Building product disclosure and optimization - material ingredients
    40 Jon Clifford
    LEED-AP BD+C
    GREENSQUARE
    Sat, Sep 10, 2016
    smoking on private balconies
    in NC-v4: Environmental tobacco smoke control
    5 Andreas Hintz
    LEED AP (BD+C), BREEAM In-Use Auditor, DGNB Auditor
    ikl GmbH
    Fri, Sep 9, 2016
    Germany
    Use of existing on site tree
    in NC-2009: Legal Wood
    14 Dustin Davis
    Associate
    Polk Stanley Wilcox Architects
    Thu, Sep 8, 2016
    United States
    Use of existing on site tree
    in NC-2009: Legal Wood
    14 Dustin Davis
    Associate
    Polk Stanley Wilcox Architects
    Thu, Sep 8, 2016
    United States
    Applicable spec divisions for MRc3
    in Healthcare-v2009: Sustainably sourced materials and products
    75 Chris Sanders
    Thu, Sep 8, 2016
    United States
    Lighting steps vs on/off
    in CI-v4: Minimum energy performance
    11 Jorge López de Obeso
    Architect / Environmental adviser
    EA Energia y Arquitectura
    Wed, Sep 7, 2016
    If you are already meeting SS c8...
    in Pilot Credit 55: Bird Collision Deterrence
    47 Cynthia Kaplan
    Principal
    cmk LEED
    Tue, Sep 6, 2016
    United States
    Hardscape for exterior wall pool deck
    in EBOM 2009 SSc7.1: Heat Island Reduction—Nonroof
    55 Karla Chavez
    GBI Tile and Stone
    Tue, Sep 6, 2016
    United States
    Bioretention Area Calculation
    in NC-v4: Rainwater management
    88 Reema Nagpal
    Green Building Coordinator
    DES Architects + Engineers
    Tue, Sep 6, 2016
    Compliance for Existing Site Features
    in Pilot Credit 14: Walkable Streets
    132 Vicki Rybl
    Energy Engineer
    RDK Engineers
    Tue, Sep 6, 2016
    United States
    LEED Basement Boundary
    in MPR3: Must use a reasonable site boundary
    239 Francis McNulty
    OCSC
    Tue, Sep 6, 2016
    Ireland
    Title Comments Post date Most Recent Postsort icon Location
    Do ruderal vegetation areas count as vegetated areas or roof
    in CS 2009 SSc5.2: Site Development—Maximize Open Space
    54 Paul Deinhofer
    MSc
    Schöberl & Pöll GmbH
    Wed, Sep 21, 2016
    2016-09-21 10:36 Austria
    Successful Option 4 with Zipcar?
    in NC 2009 SSc4.3: Alternative Transportation—Low-Emitting and Fuel-Efficient Vehicles
    465 Geoffrey Brock
    Sustainability Director - Construction
    Lendlease
    Wed, Sep 21, 2016
    2016-09-21 09:44 United States
    Option 2 Air Testing- Measuring VOCs
    in NC-v4: Indoor air quality assessment
    10 Helene Gotthelf
    Projects Manager
    Institute for the Built Environment
    Wed, Sep 21, 2016
    2016-09-21 02:05 United States
    Water Fountains in an Urban Setting
    in NC 2009 SSc5.2: Site Development—Maximize Open Space
    192 Douglas Snyder
    Principal
    DS Greenbuild LLC
    Tue, Sep 20, 2016
    2016-09-20 22:58 Vietnam
    Counting RECs Towards EAc1
    in NC 2009 EAc1: Optimize Energy Performance
    1,305 Waleed AlGhamdi
    Energy Analyst
    Karpman Consulting
    Tue, Sep 20, 2016
    2016-09-20 18:31 United States
    Exemplary Performance Over 95% Diverted
    in NC-v4: Construction and demolition waste management
    41 Cynthia Kaplan
    Principal
    cmk LEED
    Tue, Sep 20, 2016
    2016-09-20 16:54 United States
    supplier and products UF
    in NC 2009 IEQc4.4: Low-Emitting Materials—Composite Wood and Agrifiber Products
    223 Jose Antonio Kovacevic
    efizity spa
    Tue, Sep 20, 2016
    2016-09-20 16:37 Peru
    Reuse of existing building materials in the building parking lot
    in NC-v4: Building life-cycle impact reduction
    74 Isabel Santos
    S+A Green Lab
    Mon, Sep 19, 2016
    2016-09-19 13:49 Portugal
    Appendix G Oversizing
    in CS 2009 EAc1: Optimize Energy Performance
    323 jorge torres coto
    Building Systems Commissioning Engineer
    Empirical Engineering, LLC
    Mon, Sep 19, 2016
    2016-09-19 12:45 Mexico
    Parking Capacity - Police Station
    in NC 2009 SSc4.4: Alternative Transportation—Parking Capacity
    356 Joe Malone
    Mull & Weithman Architects
    Mon, Sep 19, 2016
    2016-09-19 09:36 United States
    Flush Out for "During Occupancy" Case of a Major Renovation proj
    in NC-v4: Indoor air quality assessment
    10 Shabari Shaily
    ecocentric cc
    Mon, Sep 19, 2016
    2016-09-19 09:15 South Africa
    Ventilation as Process Load
    in NC 2009 EAp2: Minimum Energy Performance
    3,751 Pedro Ribeiro
    Director of Sustainability
    Edifícios Saudáveis Consultores
    Mon, Sep 19, 2016
    2016-09-19 04:53 Portugal
    VOCs from treated wood used inside the weatherproofing
    in NC 2009 IEQc4.2: Low-Emitting Materials—Paints and Coatings
    547 debra lombard
    sustainable design consulatnt & construction administrator
    Bywater Woodworks, Inc.
    Fri, Sep 16, 2016
    2016-09-16 14:10 United States
    Solar Reflectance of Porous Playground Paving Materials
    in NC-v4: Heat island reduction
    25 Steven Burke
    Sustainability Manager
    SMMA
    Fri, Sep 16, 2016
    2016-09-16 10:35 United States
    Table Plf3-2. vs. Table Plf3-3
    in PIf3: Occupant and Usage Data
    288 Michael Kennedy
    Architect
    Clark Nexsen Architecture & Engineering
    Thu, Sep 15, 2016
    2016-09-15 17:05 United States
    Evidences for thermal comfort in commercial kitchen
    in NC 2009 IEQc7.1: Thermal Comfort—Design
    260 Pedro Ribeiro
    Director of Sustainability
    Edifícios Saudáveis Consultores
    Thu, Sep 15, 2016
    2016-09-15 12:44 Portugal
    Combination of Survey/Tracking
    in EBOM 2009 SSc4: Alternative Commuting Transportation
    317 Jason Cocek
    Wed, Sep 14, 2016
    2016-09-14 15:33 United States
    Showers?
    in CS v4: Bicycle facilities
    2 Sara Johansson
    LEED® AP O+M
    Sweco Systems
    Wed, Sep 14, 2016
    2016-09-14 10:11 Sweden
    HOTEL Project Default Occupation
    in PIf3: Occupant and Usage Data
    29 Amanda Johnson
    Penicaud Green Building
    Wed, Sep 14, 2016
    2016-09-14 08:32 France
    dB & STC
    in NC-v4: Acoustic performance
    14 Helena Garcia
    Bioconstruction
    Green Building Management
    Wed, Sep 14, 2016
    2016-09-14 06:28 Spain

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