I am confused as to what I should do for my calculations. My office has interior partition walls that separates rooms from other rooms with windows. These partitions, however, have panes of glass installed within them so that you can still see the windows. My wording may be confusing so please refer to the picture of the below link:
http://www.flickr.com/photos/shortaznkid4/4838154437/
The picture is a little dark but what you see is an office room with a window within it. The wall of that office separates the room from the hallway. You can see there's a large pane of glass glass so that you can see into the office, thus you can see the window. There is then another wall which is my office. Again a large pane glass within a wall so you can see into the hallway, into the next office, out the window. How should I treat this for the IEQc8.1 credit? Should I treat is as if there is no wall between me, the hallway, and the next office?
Jill Dalglish, PE
Lighting EngineerMKK Consulting Engineers
LEEDuser Expert
440 thumbs up
August 6, 2010 - 12:50 pm
Hi Kevin,
I'm going to assume from your other posts that you are referring to CI v2 and the Glazing Factor calculation method. It is my understanding that that you cannot use the Glazing Factor calculation method for the situation that you have. The Glazing Factor method was allowed as an option for compliance for simple calculations in straight-forward scenarios. It is not meant for a borrowed light or double-borrowed light situation such as you have. Even if you could use this method, you wouldn't be able to treat it as if there is no wall because the wall is affecting the amount of daylighting reaching your office.
This is something that you'll need to simulate with a computer simulation or go the measurements route.
Susan M. Kaplan
Director of Specifications and SustainabilityHLW International
70 thumbs up
October 4, 2010 - 4:09 pm
I've got a similar situation.
My "partitions" are 51" high and part of the workstations. The top 15" of the workstation partition is glass, with the bottom at 36" AFF.
http://www.tekus.com/products/systems_leverage/default.asp?country=europe
Am I not able to go with Option 2: Prescriptive route because my partitions are above 30" even if they have glass above 36"?
Eddy Santosa
Director of SustainabilityDBR Engineering Consultants
376 thumbs up
October 4, 2010 - 4:33 pm
Hi Susan,
In certain condition, I think you can still use option 2. You can use the example on top lighting that shows partition and apply it to the sidelighting condition.