I've been reading and re-reading the interpretations by USGBC and the posts on this site and I still feel like I can't positively state the answer to the following question our team has: Can the LE

Hi, The “ASHRAE 90.1.2007 with Addenda i” indicate that some lighting applications can be excluded : “Exceptions to 9.4.5:Lighting used for the following exterior applications is exempt when equip

We are trying to determine how best to treat a pathway that extends beyond our LEED project boundary.

I am working on a projects that consists of offices and a warehouse.

We are working on a rural site which will be classified as LZ1, so will not be allowed any light to be emitted above 90 degrees from nadir.

We are working on a rural site which will be classified as LZ1, so will not be allowed any light to be emitted above 90 degrees from nadir.

The FAQs describes that the vertical footcandles needs to be measured at ground level. In my opinion, it is not true. Reference guide NC v3 describes that "Calculate the vertical light levels alon

I am slightly confused on the flag lighting issue. If we are working on a project with the LZ2 lighting zone is it ok to have uplighting for the flag?

I am conducting a survey in affiliation with University of Cincinnati for my Master's thesis which would take just 10-15 minutes of your time.

Will the requirement for SSc8 Light Pollution reduction option 1 apply to restaurants/retail if they will be open after 11 pm?