[BLDG-SIM] glass u-vals
Brian Fountain
bfountain at greensim.com
Wed Apr 18 08:06:35 PDT 2007
Another good (free) tool is Frame Plus from Enermodal Engineering +
Natural Resources Canada. There is an online tool as well as a one
for download for more detailed analyses. Like LBNL's Window, there is
a database of glazing types, gas fills, spacers and frame types.
Available at:
http://www.frameplus.ca/
Brian Fountain
Principal -- GreenSim
____________________________________________
_____
From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of
Dahlstrom, Aaron
Sent: 18 April 2007 04:24
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] glass u-vals
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
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