Hi all, can you please tell me which is the best suitable software to demonstrate the compliance for horizontal and vertical footcandles requirements to USGBC for Light Pollution Reduction credit.

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

If you've got full cutoff fixtures you are usually set. However, if you have a situation like we had earlier, with some angled spotlights, you've got a problem.

Hello all, Regarding light leaking from a high bay warehouse with clerestory windows above the dock doors.

I am working on a project that runs 24-7, every day of the year.

I've got a project trying to meet the requirements of LZ2 under this credit. the LEED boundary abuts the public rights-of-way at all points. It is essentially an island between streets.

My client is expanding an existing building onto an adjacent tract. Our LEED boundary is the interface between the new and existing buildings, extended across what was an existing parking lot.

Are flagpoles exempt from this criteria. I did a word serach of the entire LEED Reference Guide and it does not address this condition.

Does anyone know of a manufacturer that makes a parking lot lighting fixture that casts light in only one direction, instead of 2 or 4 directions?

Does anyone have experience with a campus dorm application for Interior Building Lighting - Option 2?