Hi all, I am working on a residential multi-dwelling building. For a residential building it is impossible to control or decide the interior lighting for the apartments.

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

It looks as though building facade lighting is a non-tradable surface, but our LED facade lighting is exceeding the LPD, are LEDs that are backlighting a building facade exempt from calculations?

We are working on a mixed use development where we have to achieve this credit for two buildings (with facade lighting) on a master site, but the buildings are only 16 m. apart from each other.

In the Bird's Eye View section of this credit, one of the FAQs stated: Are hospitals exempt from interior lighting requirements? Yes. Does this mean if we are doing a HC project, the interior l

My project is a city Transportation Center, on a triangular downtown infill site.

Hi All, My project consists of a large parking lot where all interior parking spaces are located under solar canopies and perimeter parking spaces are uncovered.

We have a new construction project on an existing campus setting. To make room for the new building, an existing sidewalk has been relocated along with the existing light standards.

Hi all, A question about industrial sites: According to ASHRAE 90.1- section 9.4.5 Exterior Building Lighting Power, lighting used for the following exterior applications is exempt when equipped

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.