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Created on LEED Interpretation

ID#

li-5409

Credit NameSSc8 - Light pollution reduction
Credit CategorySustainable sites
International ApplicableNo
Campus ApplicableNo

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

Our project is located in the Lake Union District of Seattle, Washington and falls under the lighting category \'High Ambient Brightness.\' The project comprises a five-story building on a 0.58 acre site. The building is bordered by city streets and sidewalks, which are not part of our project site.\nAll exterior lighting complies with the referenced IESNA Practice Manual for Exterior Environments. All interior and exterior lighting is designed such that "zero direct-beam illumination leaves the building site" with the following exception.\nThe building directly abuts the site boundary (city sidewalks in front and alley way in back). As a result, the exterior light fixtures will direct some light onto this adjacent sidewalks and alley way. The current alley way has no exterior lighting. Please confirm that we comply with the intent of SS8 to eliminate light trespass from the building site.

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