Revise the Campus Approach section to read: "Eligible. For Option 1, compliance must be demonstrated for all fixtures within the LEED Campus Boundary. For Option 2, compliance may be demonstrated at the LEED Campus Boundary."
Schools-EBOM-v4 SSc4: Light pollution reduction
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Establishment
Option 1. Fixture Shielding
Shield all exterior fixtures (where the sum of the mean lamp lumens for that fixture exceeds 2,500) such that the installed fixtures do not directly emit any light at a vertical angle more than 90 degrees from straight down.OR
Option 2. Perimeter Measurements
Measure the night illumination levels at regularly spaced points on the project boundary, taking the measurements with the building’s exterior and site lights both on and off. At least eight measurements are required, at a maximum spacing of 100 feet (30 meters) apart. The illumination level measured with the lights on must not be more than 20% above the level measured with the lights off.Performance
None. See all forum discussions about this credit »Frequently asked questions
What about exterior lighting owned by tenants?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
My building doesn’t have any exterior lighting (no site lighting and no building-mounted lighting). Is my project eligible for this credit?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
We have parking garage signs on the building exterior. We’re attempting Option 1 Fixture Shielding. Does the parking signage need to meet the requirements too?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
What about lights on the roof? Do they have to comply?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
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Cost estimates for this credit
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Addenda
Delete the first row from the table ("Fixture schedule showing exterior luminaire and lumen information").
LEEDuser overview
Frank advice from LEED experts
LEED is changing all the time, and every project is unique. Even seasoned professionals can miss a critical detail and lose a credit or even a prerequisite at the last minute. Our expert advice guides our LEEDuser Premium members and saves you valuable time.
For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
Establishment
Option 1. Fixture Shielding
Shield all exterior fixtures (where the sum of the mean lamp lumens for that fixture exceeds 2,500) such that the installed fixtures do not directly emit any light at a vertical angle more than 90 degrees from straight down.OR
Option 2. Perimeter Measurements
Measure the night illumination levels at regularly spaced points on the project boundary, taking the measurements with the building’s exterior and site lights both on and off. At least eight measurements are required, at a maximum spacing of 100 feet (30 meters) apart. The illumination level measured with the lights on must not be more than 20% above the level measured with the lights off.Performance
None. See all forum discussions about this credit »Documentation toolkit
The motherlode of cheat sheets
LEEDuser’s Documentation Toolkit is loaded with calculators to help assess credit compliance, tracking spreadsheets for materials, sample templates to help guide your narratives and LEED Online submissions, and examples of actual submissions from certified LEED projects for you to check your work against. To get your plaque, start with the right toolkit.
For full access, sign up now for LEEDuser Premium
Already a premium member? Log in now
Frequently asked questions
What about exterior lighting owned by tenants?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
My building doesn’t have any exterior lighting (no site lighting and no building-mounted lighting). Is my project eligible for this credit?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
We have parking garage signs on the building exterior. We’re attempting Option 1 Fixture Shielding. Does the parking signage need to meet the requirements too?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
What about lights on the roof? Do they have to comply?The answer to this question is available to LEEDuser premium members. Start a free trial » (If you're already a premium member, log in here.) |
Addenda
Revise the Campus Approach section to read: "Eligible. For Option 1, compliance must be demonstrated for all fixtures within the LEED Campus Boundary. For Option 2, compliance may be demonstrated at the LEED Campus Boundary."
Delete the first row from the table ("Fixture schedule showing exterior luminaire and lumen information").