We have a 2 m. high brick wall running all around out site.

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 have a govt. project that is building on a greenbuild site. The pre-development condition of the site is an LZ1. However, after the project is developed, there will be over 1m sq.

Our project has issues with the lighting on one of the facedes that exceeds the LPDs per ASHRAE.

I've looked at the annotated photometric plan example for this credit, and I noticed that at the project boundary, the vertical and horizontal footcandle values are reported as one single value. D

If we find the right kind of light fixture to be installed in the parking lot which can work well with an occupancy sensor, we will be able to reduce a lot of exterior light pollution for our proje

GBCI brought to my attention a correction that needed to be made to our FAQs.

We have insulated, translucent daylighting panels on the project, and I'm wondering if they will be considered "windows" for the interior lighting requirements of this credit.

Our project is a new building being built on an existing campus.

Hello All, I have a project that is required to meet its own jurisdictional dark sky ordinance.