LEED v4
Existing Warehouses & Dist. Ctrs.
Sustainable Sites
Light pollution reduction

Warehouses-EBOM-v4 SSc4: Light pollution reduction

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Credit language

USGBC logo

© 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

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 »

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What about lights on the roof? Do they have to comply?

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What about exterior lighting owned by tenants?

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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 »

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See all forum discussions about this credit »

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Cost estimates for this credit

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Addenda

27/01/2017– Updated: 27/01/2017
Reference Guide Correction
Description of change:
100002137

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."

Inquiry:
Ruling:
Campus Applicable
Yes
Internationally Applicable:
Yes
01/10/2014– Updated: 14/02/2015
Reference Guide Correction
Description of change:
100001943

Delete the first row from the table ("Fixture schedule showing exterior luminaire and lumen information").

Inquiry:
Ruling:
Campus Applicable
Yes
Internationally Applicable:
Yes
See all forum discussions about this credit »
Guest expert

Bill Swanson

PE, LEED AP BD+C

Integrated Design Solutions
Sr. Electrical Engineer

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

USGBC logo

© 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

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.)

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.)

See all forum discussions about this credit »

Addenda

27/01/2017– Updated: 27/01/2017
Reference Guide Correction
Description of change:
100002137

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."

Inquiry:
Ruling:
Campus Applicable
Yes
Internationally Applicable:
Yes
01/10/2014– Updated: 14/02/2015
Reference Guide Correction
Description of change:
100001943

Delete the first row from the table ("Fixture schedule showing exterior luminaire and lumen information").

Inquiry:
Ruling:
Campus Applicable
Yes
Internationally Applicable:
Yes
See all forum discussions about this credit »
Guest expert

Bill Swanson

PE, LEED AP BD+C

Integrated Design Solutions
Sr. Electrical Engineer