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NC-v4 SSc6:Light pollution reduction

No exterior lights?

We are looking at a project that would be considered a major renovation, but we are not touching the outside face of the exterior walls of the building. As such we are making no modifications to existing exterior lighting (literally would be outside of the project LEED boundary). If the project contains no exterior lighting, can you comply with the intent of the credit (and achieve the point)? Thanks.

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Sat, 01/27/2018 - 00:26

Hi Jon Penndorf, I'm dealing with the same situation. Did you get any references for solving your answer?. !the best!.   
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Bill Swanson
Sr. Electrical Engineer
Integrated Design Solutions
LEEDuser Expert
516 thumbs up

Tue, 01/30/2018 - 15:02

I think I answered this a couple years ago.  I'll try again. It sounds like it would be okay.  The rules are for all lighting within the LEED boundary to be compliant.  If the LEED boundary doesn't extend to the building exterior then it sounds compliant.  You draw the boundary and if the reviewers are okay with it then, sure.  You may need to fill out the form with some 1's or 0's just to get the form to register that it is complete.  And add a description explaining that there are zero exterior fixtures, new or existing, within the LEED boundary.
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Allan Robles
Sustainability Associate
Urban Fabrick, Inc.
LEEDuser Basic Member
7 thumbs up

Thu, 04/26/2018 - 18:20

Hi. In relation to this thread, we have a project that doesn't contain site lighting but there will contain exterior sconces within the LEED project boundary. Assuming that the sconces are only used as facade lighting and will automatically turn off from midnight midnight to 6AM, would completing the LEED form as you mentioned above with 1's or 0's and including a description would suffice for meeting the credit requirements? Also, I don't think there's any internally illuminated exterior signage either.

Thu, 04/26/2018 - 18:39

See Case #01652700, which allows the façade lighting to be exempt if the project is in MLO lighting zones 2, 3 or 4 and there is an automatic shut-off from 12 p.m. - 6 a.m.

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