[Equest-users] No Roof Conduction Losses

[Tony Kriel]

Modelers,

 

I am trying to model the impact of adding additional insulation to a 2-story
pitched roof office building using Equest.  My baseline model shows the roof
U-value to be 0.026 and my parametric run to have a roof U-value of 0.019
(report LV-I).  However, there was no change in heating and cooling energy
usage.  I then looked at the building peak load components (report LS-C) and
noticed that there are no roof losses for either run.

 

So the main question I have is; why are there no roof conduction losses?
Have I incorrectly modeled something or is there an issue with pitched roofs
and conduction losses in Equest.  I have attached the pd2 and inp files for
these runs for anyone's review.

 

Any help would be greatly appreciated.

 

Thanks,

 

Tony Kriel, LEED AP

Mechanical Engineer

tkriel at sustaineng.com

(608) 231-9664 ext. 16

 

Sustainable Engineering Group, LLC.

431 Charmany Drive, Suite 102

Madison, WI 53719

www.sustaineng.com 

 

 <mailto:tkriel at sustaineng.com>  

 

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