Forum discussion
NC-2009 IEQc8.1: Daylight and Views—Daylight
The document sample I have states that the compliance factor is calculated by WindowArea/FloorArea * VLT
And then checking if it is between 0.15 and 0.18.
When it is less than .015, then the amount of compliant area is calculated, what about if its >0.18?
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TODD REED
Energy Program SpecialistPA DMVA
LEEDuser Expert
890 thumbs up
April 29, 2013 - 3:26 pm
The only area that is compliant is the one that falls between 0.15 and 0.18. Anything below 0.15 is not compliant and anything above 0.18 is not compliant.
Jill Dalglish, PE
Lighting EngineerMKK Consulting Engineers
LEEDuser Expert
440 thumbs up
April 29, 2013 - 5:12 pm
If it is less than 0.150, you can make it come out to 0.150 by adjusting your floor area. See the formula I posted on this site to Gabriela on Dec 14, 2012.
There is no "cure" for if you are over 0.180. In effect, it is one indication that you might be over-daylighting your space. You should take it as cue for redesign. Redesign would involve one or more of the following: recalculating using daylight simulation, lowering your VLT, and/or reducing your window size.