We are trying to determine the exterior lighting power densities for a Core and Shell project and have a doubt regarding a surface type per ASHRAE 90.1. All the doors into and out of the building (including main entries and other doors) are located under canopies / overhangs. In all cases, the doors are lit by the general lighting provided under those canopies (there are no specific lighting fixtures for the doors). Therefore, we understand that, in order to determine the allowed lighting power per ASHRAE 90.1, we should account for the entire area covered by the canopies under the Canopies Surface Type (tradable surfaces at 1.25 w/ft2) and not include a separate line item for Main Entries or Other Doors (in order not to account two times for the same light fixtures). Is this reasonable?

Also, one of our exits from fire stairs opens onto the loading area which is covered by a canopy. We assume that this area should be accounted for under the Canopies Surface Type just as explained above (without considering the door as a separate line item) whereas the uncovered area next to the loading dock should be accounted for as a Loading Surface Type (non-tradable). Is this reasonable?