I calculated the floor area in rooms that had less than .15 that would contribute. however, many spaces have over .18 (too much light). My overall calculation for the building is currently 54% daylighting. How can I use some of the lighting from the spaces with calculations over .18? There are horizontal louver blinds on all exterior windows, so they are user adjusted, but I am wondering how to calculate these spaces. Please help!
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TODD REED
Energy Program SpecialistPA DMVA
LEEDuser Expert
890 thumbs up
February 18, 2013 - 8:14 am
Kate,
First off, the prescriptive method does not indicate you have too much or too little daylight. You can say that a space over 0.18 has the potential to be over daylit and a space with 0.15 or less may possibly not have the potential to have enough.
You can reduce the the area of your daylight zone until it is compliant. This will usually work for the spaces below 0.15. You cannot increase the size of your daylight zone.
Eddy Santosa
Director of SustainabilityDBR Engineering Consultants
376 thumbs up
February 18, 2013 - 12:18 pm
Kate, you may need to use the simulation method if you concern with the daylight inside.