We are working on the LEED V4 certification of a project which will be located at the border of a business park and about 3 kilometers away from highways and an international airport. Between the project location and the airport there are only grasslands. I have 2 questions regarding this project:
1) What would be the lighting zone? I would say LZ1 because of the location in a business park with limited nighttime activity, but because of the close distance to the airport I am wondering if LZ2 would be applicable as well?
2) In the windowframes of the facade, LED strips will be integrated. How should these LED strips be taken into account? Is this seen as facade lighting or could you also see it as internally illuminated signage and define a max. luminance to it (cd/m2) ? Or should it be taken into account in the BUG rating?
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Bill Swanson
Sr. Electrical EngineerIntegrated Design Solutions
LEEDuser Expert
734 thumbs up
August 11, 2017 - 8:33 am
1) The lighting zones are not well defined. Is the side of the airport you are near fields and runways or does it have parking, buildings, maintenance? If it's mostly empty space then I'd side more to LZ1. If there's more activity I'd side more to LZ2. It sounds like grassland.
2) If the lights are technically inside of the building I would control them like interior lights. If they are outside of the building then treat them as façade lighting. Unless the window has some image or text like signage, I don't see it as an internally illuminated sign.