Hi, in case of a not meeting the skylight coverage ratio of 3-6% for the total room space, e.g. having only 1.5%, is it possible to devide the space into two zones and include half or the room in the compliant areas, which on it's own meets the 3% skylight coverage?

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TODD REED

Energy Program Specialist

PA DMVA

LEEDuser Expert

626 thumbs up

Tue, 04/22/2014 - 20:29

If toplighting is the only source of daylight, then no. You are not meeting the requirements of the credit by possibly providing adequate daylight to the space.( I say possibly because the prescriptive method is not a determinant of adequate daylight levels or good dyalighting in general) Use simulation or measurements to document possible credit compliance. If the room also has sidelighting, then you may be able to break up the space into multiple daylight zones, dependent on the perimeter glazing, and then separate the skylights between zones.

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