[EnergyPlus_Support] Roof, ceiling Construction

["Michael J. Witte" <mjwitte@xxxxxxxx>]

(This is a reply to message #8583, "Re: Window AC or Unitary (Roof, ceiling 
Construction".  In the future, it is helpful to start a new message when asking 
about a new topic.)

The space created by a "sloping roof on one side and a horizontal ceiling on 
the other" should be modeled as a separate thermal zone.  For an example of 
this, see the "ATTIC ZONE" in example file AirflowNetwork_Simple_House.idf

Mike



On 24 Jun 2007 at 2:13, ooikoonbeng2004 wrote:

> Hi everone, 
> 
> i am having difficulty to enter this roof CONSTRUCTION into the idf. 
> 
> The roof is made of sheet metal, supported by wooden trusses, and is 
> sloping. i see in some documentation with the vertices of the 
> sloping roof but how do i enter this into the idf? 
> 
> Below the sloping roof is an air space and below the air space is 
> the horizontal gypsum ceiling boards, 2ft x 4ft, suspended by 
> aluminum frames. For want of a better way to enter a sloping roof on 
> one side and a horizontal ceiling on the other, i have used ASHRAE's 
> air object. 
> 
> There are CEILING and ROOF options in Surface Heat Transfer. i have 
> presumed that they are one construction. Is there an example file 
> with CEILING and sloping ROOF? 
> 
> best regards, 
> ooi.

========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx





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