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LEED Group project - Lighting Boundary

NC-v4 SSc6:Light pollution reduction
posted by  Edgar Arevalo  on 

I have a LEED Group project where I am pursuing the Light Pollution Reduction credit.  I have a concern regarding the lighting project boundary for a LEED Group site.

1
Wed Jan 21, 2026, 9:28 pm

Marquis Light for the facade

NC-v4 SSc6:Light pollution reduction
posted by  Summer Gorder  on 

We are working on a theater that has some uplight from Marquis light on the front of the building.

2
Wed Jan 21, 2026, 6:54 pm
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Luminaries inside parking cover are exterior lightings?

NC-v4 SSc6:Light pollution reduction
posted by  Thomas Tan  on 

Dear All,

I have a large parking structure (on grade) located inside the project site.

2
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Heather DeGrella
Sustainable Design Director, Associate Principal
Opsis Architecture
LEEDuser Premium Member
54 thumbs up
Wed Jan 14, 2026, 8:20 pm

Internally Illuminated Signage

NC-v4 SSc6:Light pollution reduction
posted by  Jason Garvens  on 

I see there is stated illuminance limits for 'Internally Illuminated Exterior Signage' but there is also an exemption stated for 'internally illuminated signage' and this is cau

6
Wed Oct 29, 2025, 6:58 pm
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Lighting Boundary if property boundary abuts parking spaces off of a public roadway?

NC-v4 SSc6:Light pollution reduction
posted by  Crista Shopis  on 

Hi, my project abuts a parking lot that is basically an expanded shoulder with spaces, directly off of a roadway.

3
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Crista Shopis
Senior Engineer, LEED AP
Taitem Engineering
LEEDuser Premium Member
6 thumbs up
Wed Oct 8, 2025, 7:27 pm
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Scoreboard as Signage?

NC-v4 SSc6:Light pollution reduction
posted by  Laura Marchand  on 

Does anyone have experience on whether a scoreboard for a sports stadium would fall into "internally illuminated exterior signage"?

1
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Erica Downs
Sustainability Consultant
The Green Engineer
LEEDuser Premium Member
7 thumbs up
Tue Aug 12, 2025, 9:05 pm

BUG ratings for recessed down lights

NC-v4 SSc6:Light pollution reduction
posted by  Brightworks Sustainability  on 

Hi Bill, Do you know how to account for exterior lighting that does not have published BUG ratings?

4
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Bill Swanson
Sr. Electrical Engineer
Integrated Design Solutions
LEEDuser Expert
516 thumbs up
Sat Mar 29, 2025, 8:06 am
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Exemption from uplight and light Trespass requirements - government-mandated roadway lighting applicable for docking area?

NC-v4 SSc6:Light pollution reduction
posted by  Lenka Matějíčková  on 

Hi All,

0

Light trespass to a "welcoming neighbor"

NC-v4 SSc6:Light pollution reduction
posted by  John Mlade  on 

Hi all, hoping you can provide some insight into this scenario.

4
Thu Nov 7, 2024, 6:46 pm

luminaire mounting and partially enclosed spaces

NC-v4 SSc6:Light pollution reduction
posted by  Esteban Martinez  on 

Hello,

I am working on a 10-story office LZ2 project looking for light pollution reduction by BUG and light trespass method. 

1
Wed Sep 25, 2024, 9:51 pm