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[BLDG-SIM] 90.1-2004 ASHRAE Basecase

ASHRAE 90.1-2004, page 7 - Definition of F-Factor (loss through slab-on-grade floor), page 6 - Definition of C-Factor (loss through underground wall). Note units are the same as U-Value. I believe you use them for the same purpose as U-Factor, except your outside medium isn't air, it is dirt.

From: BLDG-SIM@xxxxxxxx [mailto:BLDG-SIM@xxxxxxxx] On Behalf Of Steve Mignogna
Sent: Monday, March 05, 2007 2:37 PM
To: BLDG-SIM@xxxxxxxx
Subject: [BLDG-SIM] 90.1-2004 ASHRAE Basecase

Hello,

I had a question regarding setting up a baseline model based on the ASHRAE 90.1-2004 standard.  For the envelope requirements, the required values for the "Slab on Grade Flrs" and "Below Grade Walls" are in terms of "F-values" and "C-values" respectively.  Since eQuest only takes the U or R values as inputs, I was wondering how these F and C values corresponded to them.  Any help would be greatly appreciated.

Regards,

--
Steve Mignogna
Atelier Ten 

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