If I have two different glass types with different Tvis Values in the same room, do I run the calcs on the specific areas of glass using the same floor area and then add the two result together?
Thanks,
Forum discussion
NC-2009 IEQc8.1: Daylight and Views—Daylight
If I have two different glass types with different Tvis Values in the same room, do I run the calcs on the specific areas of glass using the same floor area and then add the two result together?
Thanks,
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Carlie Bullock-Jones
PrincipalEcoworks Studio
LEEDuser Expert
220 thumbs up
January 21, 2010 - 8:14 am
One approach would be to calculate a new Tvis value based on the "weighted average" of the two different types of glass (i.e. A.Tvis represents 20% of the glass square footage, B.Tvis represents 80% of the glass square footage); this new average Tvis value can then be multiplied by the overall square footage of the glass and regularly occupied floor area.