Rating System

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

Rating System Version

v3 - LEED 2009, v2 - Schools 2007, v2 - LEED 2.2, v2 - LEED 2.0

Inquiry

The S.T. Dana Building project is a renovation project located in the central quadrangle (the Diag) of the University of Michigan campus in Ann Arbor, Michigan. The site area defined for the project is the site surrounding the existing building which was directly affected by the construction project. In general terms, the site consists of a narrow band of space around the building and additional areas that were contained within construction staging areas for the project. This site definition is being applied consistently to all aspects of the LEED submission.\n\n The LEED application for the project includes documentation for the award of Sustainable Site Credit 8, Light Pollution Reduction. The project incorporates the replacement of exterior lighting over the two principal building entrances, areas approximately twenty feet square (20Æ x 20Æ). This is the full extent of exterior lighting undertaken as part of the Dana Building renovation project.\n\n The design of the replacement fixtures meets applicable IESNA requirements. The LEED application includes all required calculations and documentation showing compliance with IESNA for both interior fixtures casting light out windows and the exterior lighting at the building entrances replaced as part of the project.\n\n The basis of this inquiry addresses other, pre-existing, exterior lighting located within the defined LEED project site that is not being replaced as part of the renovation project. There are two types. First, attached to the building are bracket-mounted lights above each of two secondary doorways. These lights have not been replaced as part of the renovation project. Second, is a series of low pole fixtures lighting the pedestrian pathways around the building. The pole fixtures have not been replaced as part of the renovation project.\n\n The proposed light fixture replacement does achieve light pollution reduction within the limitations of the project scope. Following the no action / no credit philosophy, it is our position that no action regarding exterior lighting that is beyond the scope of the LEED renovation project means no penalty either. Can the project be awarded Sustainable Site Credit 8 for replacement of the two main entrance fixtures alone?