We are working on a multitenant office building, with several vacant spaces. All of the occupied spaces have automatic controls for the interior lighting, but the unoccupied spaces don't.

When peforming the exterior illumination measurements, do both horizontal and vertical foot-candle measurements need to be taken? Or just one or the other?

From much of the threads in this topic, it appears that the requirement to meet option 2 of this credit is that you "Partially or fully shield all exterior fixtrues 50 watts and over so that they d

Is the requirement regarding interior lighting applicable also to hotels which are working 24 hours a day?

Our building is a warehouse with only a single string of clerestory windows at the peak of a gabled roof.

The Reference Guide is rather vague on how a manual override should be returned to normal saying just “Manual override capability may be provided for occasional after-hours use.