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Bollard lighting

NC-2009 SSc8: Light Pollution Reduction
posted by Erin Holdenried on Aug 10, 2012, 12:04 pm

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. Does anybody have...

Clerestory windows

NC-2009 SSc8: Light Pollution Reduction
posted by Erin Holdenried on Aug 1, 2012, 12:06 pm

Would clerestory windows be required to have automatic shades if the project uses down lights located below the windows? Technically, these lights would not be in direct line-of-sight of the...

Resultant transmittance for shading device

NC-2009 SSc8: Light Pollution Reduction
posted by yanghee pierce on Aug 1, 2012, 11:30 am

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? Is...

Interior lighting requirements for HC project are exempt too?

NC-2009 SSc8: Light Pollution Reduction
posted by James Chueh on Aug 1, 2012, 3:05 am

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...

Simulation Software Capability

NC-2009 SSc8: Light Pollution Reduction
posted by James Chueh on Aug 1, 2012, 3:02 am

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...

Hotel rooms- interior lighting requirements

NC-2009 SSc8: Light Pollution Reduction
posted by Jaida Anderson-Lozano on Jul 18, 2012, 3:51 am

We are building a hotel with LEED NC v2009. If we can prove that all interior lighting has no direct line of sight do we still need to comply with option 1: reduced input power or option 2:...

Revised Lighting Power Densities

NC-2009 SSc8: Light Pollution Reduction
posted by Elle Brown on Jun 29, 2012, 10:26 am

The electrical engineer on our project filled out the template sheet that I downloaded for this credit. However, when he went to upload his information on LEED online the light power densities...

Vertical grids

NC-2009 SSc8: Light Pollution Reduction
posted by Bill Swanson on Apr 13, 2012, 2:19 pm

Exterior viedo wall

NC-2009 SSc8: Light Pollution Reduction
posted by benny sung on Mar 26, 2012, 9:59 pm

Hi,

My project will install an exterior viedo wall. May I know if this feature shall included in the calculation?

Interior Lighting for Fire Station

NC-2009 SSc8: Light Pollution Reduction
posted by Theresa Lehman on Mar 20, 2012, 1:40 pm

Similar to the other "Interior Lighting for 24 operation" questions, I am working on a smaller (8,700 sf) fire station that is operational 24/7. There are manual interior (residential-like)...