Hallo Bill, The Reference Guide mentions "Software is also available that will calculate the BUG rating using the IES file for the luminaire." Would you please share with us what software the guid

I just had this come up on a project. The reviewer will only allow me to count hardscape area for the LPD table if that area has over 0.2 fc.

Would appreciate very much if anyone can clarify that the maximum allowed percentage of total lumens emitted above horizontal (by lighting zone) is applied to each luminaire or the sum of all lumen

Hello all, In this project in Taiwan (I cannot find the country selection below), there are no available IES files nor BUG ratings for the exterior luminaires; therefore, I am pursuing the credit

Working on a project where the property line is adjacent to a railroad track operated by a private railway company(BNSF).

Is there any circumstance whereby an after hours manual override for a Civic Building would not be acceptable for exterior lighting?

Am I missing something or does v4 no longer have any requirement on interior lighting that has a significant uplighting component? We have an interior atrium that will have this issue - and it jus

This has come up on a project and we lost on appeal so I'm sharing this information with everyone. Any area being claimed in the wattage baseline calculation must be illuminated to a minimum light

Who determines the exterior lighting zone LZ0-LZ4 for a LEED project? I am working on a project in a state that isn't mine and I don't know much about the city.

This may be a silly question, but are fixtures attached to the garage considered building-mounted? The garage is separate from our LEED project but within the site boundary.