I hope this is not a dumb question...but what exactly is the V-factor in the 2009 IECC. I shows up several times in Section 4 for example, Sec 402.1 .3 V-Factor Alternative. I think it is the same as the U-factor....but why are they referring to it as V-Factor.
Posted Tue, 01/15/2013 - 18:24
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