[BLDG-SIM] glass u-vals

[Dahlstrom, Aaron]

ASHRAE 90.1 window U-vals are for the "assembly."
Manufacturer's data for my project is for "center of glass."
 
Is anyone familiar with a way to get from one to the other?
 
I have a frame type and u-value; however, Fund. Chap 31 seems to caution
against doing hand calcs due to edge-of-glass effects.
 
Thanks,
 
Aaron Dahlstrom
AKF Engineers, LLP
1500 Walnut Street, Suite 1400
Philadelphia, PA 19102 
Phone:   (215) 282-2169
Fax:        (215) 735-6706
 <http://www.akf-engineers.com/> www.akf-engineers.com
 


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