[Bldg-sim] ASHRAE 90.1-App G: Site Shading

[Eric Studer]

Thanks to all who have weighed in on the issue of site shading.  Table
G3.1(5)(f) pertains to the building envelope and not the site.  The
complication arises when considering the rotation of the base case building
to remove the impact of building orientation.  If there are adjacent
existing buildings, then a rectangular building footprint would likely
conflict with them.  It seems that this is an item that should be clarified
in 90.1-2007?

 

Ph:   (781) 431-1100 ext 12
Fax:  (781) 431-1109

 

  _____  

From: Demba Ndiaye [mailto:demba.ndiaye at setty.com] 
Sent: Wednesday, June 04, 2008 4:32 PM
To: Eric Studer; bldg-sim at lists.onebuilding.org
Subject: RE: [Bldg-sim] ASHRAE 90.1-App G: Site Shading

 

Eric, 

 

My understanding is that, regardless of the fact that the building is new or
existing, there is no specific requirement regarding the modeling of
neighboring shading objects.

 

______________

Demba Ndiaye

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From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Eric Studer
Sent: Wednesday, June 04, 2008 3:47 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] ASHRAE 90.1-App G: Site Shading

 

Hello,

 

ASHRAE 90.1-2004 Appendix G has a clause pertaining to self-shading of the
baseline building, but there does not seem to be any explicit direction
regarding shading from other objects beyond the building envelope (trees,
buildings, etc).  Should the base case be modeled as being impacted by
adjacent buildings or other objects?  Would this be different for a new
building versus an existing building that is being gutted?

 

Thanks

 

                                      

 

Eric Studer, PE, LEED AP
DMI
35 Walnut Street
Wellesley, MA  02481
Ph:   (781) 431-1100 ext 12
Fax:  (781) 431-1109
e-mail:  estuder at dmiinc.com

 

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