[Equest-users] U values for fenestrations
NKravik at willdan.com
Thu Dec 29 07:02:46 PST 2011
You may want to check the Windows 6 program from LBNL on the following link and play with the windows and framing for your checks.
Nikola Kravik, LEED AP
Willdan Energy Solutions
11875 Dublin Boulevard, Suite A-201
Dublin, California 94568
T. 925.556.2600 ext. 1228
nkravik at willdan.com
From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Ali Murat Tanyer
Sent: Thursday, December 29, 2011 5:32 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] U values for fenestrations
I am trying to understand the best way to enter the U value of my
fenestrations as a whole system. The manufacturer specified the U value
of the glazing as 0.49 BTU/hr·ft2°F and the aluminium framing as 0.70
BTU/hr·ft2°F. I do not have the NFRC data of my fenestration.
I can enter the properties of the glazing however I couldn't find a way
to define the thermal properties of the aluminium framing. I have also
checked the detailed mode screens.
The dimensions of the fenestration varies in different locations. So
what is the best way to calculate and enter the U-factor for the overall
fenestration area (including glazing and framing)?
My aim is making my simulation as accurate as possible since I want to
compare the results with actual values.
Thanks in advance.
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