We are building a hotel with LEED NC v2009.

I've looked at the annotated photometric plan example for this credit, and I noticed that at the project boundary, the vertical and horizontal footcandle values are reported as one single value. D

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

For Option 2, a document, such as manufacture product sheets needs to be provided to confirm the resultant transmittance of shading device is less than 10%. What is resultant transmittance?

Would clerestory windows be required to have automatic shades if the project uses down lights located below the windows?

It seems like most bollard lights emit light straight out to the sides at 180 or 360 deg spreads. Therefore allowing a lot of light to be emitted above 90 deg from nadir.

We conducted a photometric analysis for a new building and complied with light trespass on all sides of the building except the south side, where the new building will abut an existing building wit

The property line for a LEED NC Retail project I am working on extends to the center of the abutting roadway.

Our project does not have any lighting on a non-tradeable surface and as a result, we cannot achieve credit compliance. How do I handle the input block for non-tradeable surfaces? Thanks!

I'm note sure to understand the fourth demand of this credit.