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[EnergyPlus_Support] Shading in EnergyPlus -- Correction

on 8/4/2005, Question was:
 >I also have a very simple question concerning roof overhangs: will
 >they shade windows in the zone below them or not? i.e. do they need
 >to be modelled as shading surfaces? or they will be automatically
 >considered in the calculation?
 >

And I said:
"Yes, the excess roof geometry will shade windows (and walls) of the
other zones as appropriate.  There is no need to make them shading
devices as well."

This is incorrect.  In order to have the excess part of a roof shade 
the walls below it, you must put in overhangs/attached shading 
devices (or detached) to model that part of the building.  Note that 
the excess roof model portion may still be needed for the increased 
thermal mass but it WILL NOT shade the walls below it.

I apologize for my mis-information.

Linda

EnergyPlus WebSite: http://www.energyplus.gov
Owner: EnergyPlus_Support list
Member: EnergyPlus Development Team



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