I am having some trouble running my compliance anlaysis. The cause is apparently a floor system modeled with an underground wall.

When I went back and looked at the properties of the affected floors, "U-EFFECTIVE" value has been left blank.

My question is, wouldn't you be able to figure "U-Effective" by multiplying the two compliance inputs together.

In this instance ... 42.25 (ft) X 0.52 (Btu/h-ft-F) = 21.97 (Btu/h-ft2-F)

Thus U-effective should show "21.97" instead of being blank. Is this a correct assumption?

I'm not sure if this is the cause for the compliance analysis error but if I try to manually change "U-Effective" to zero, it sais
Range Checking Violation for Underground Wall 'EL5 Flr (G.SSW1.U1)' U-EFFECTIVE: Error: Input must be > 0.0001

Thus being blank would be causing the compliance errors, would it not?
(Because there is no value for the DOE2 engine to factor into the calculations when you run the analysis.)

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Chris Baker
CCI CAD Drafter

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