Savings by Design fenestration U values

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When running the SBD compliance portion of the document, it does not seem to
take the U-value of the fenestration. Is a calculation taking place that I
am not aware of? We selected the Solarban 60 which is supposed to have am
NFRC u value rating of 0.29 at the center of glass.

But when the savings by design model is complete, it seems that the U-value
is 0.5.

Any help would be appreciated.

Bach Tsan

Bach Tsan's picture
Joined: 2011-09-30
Reputation: 0

Hi all:

I am setting up a matrix of various building configurations to perform high level energy parametric upon.

One parameter is window-wall ratio. I am afraid I would need to set up an Expression (based on current window sq.ft) to accomplish this--or make another DD Wizard run with a different WWR.

What is eQuest world's suggestion??

John R. Aulbach, PE, CEM

John Aulbach's picture
Joined: 2011-09-30
Reputation: 1