Rating System

LEED BD+C: New Construction, LEED BD+C: New Construction, LEED BD+C: Schools, LEED BD+C: Schools, LEED BD+C: Core and Shell

Rating System Version

v2 - LEED 2.2, v3 - LEED 2009, v2 - Schools 2007, v3 - LEED 2009, v3 - LEED 2009

Inquiry

The project is a major renovation for a data center in an existing industrial park. The existing front parking area has an abundance of tree growth that effectively provides a cutoff of illumination generated from the pole mounted 250W HPS fixtures. The fixture is a cutoff type as required by the credit. Will it be acceptable to observe/record lighting levels at the property line in lieu of calculations? Any illumination calculations will not model tree growth and will show lighting to be non-conforming to the credit. But if we can submit recorded/observed lighting levels it is likely we will comply with the .2fc max.