We have a project along a major city street. the city street lights are very bright.

There has been some conversation here about the concept of vertical footcandles. Across the industry, this seems to be an issue that is not very well understood.

This credit asks for uploads of product specifications, location plan, and riser diagram for automatic shading devices. Due to budget constraints our project will not have any automatic shading.

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.

We are contemplating seeking this credit for a multiple building project. There are 4 buildings, they all belong to the same owner.

I'm working on a project that already submitted for Preliminary Design review.

Good morning, I have a project in area LZ3 which is a listed historic building. The designer wants to insert uplights for exteriors lighting of facades. For ASHRAE 90.1 p.