[Bldg-sim] 90.1 and infiltration/air-tightness?

[Dan Katzenberger]

Nick,
 
As others have stated, ASHRAE 90.1 does not address infiltration differences
between the baseline and proposed building.
 
Note that there have been some LEED Innovation in Design credits granted for
additional building envelope commissioning.  Please see: 
 
http://www.usgbc.org/ShowFile.aspx?DocumentID=3569
 
While this does not account for the energy effects of reduced infiltration
due to improved building design, it does at least allow for a LEED credit
point for the effort.
 
Daniel A. Katzenberger, P.E., CEM, LEED-AP
Principal & Certified Energy Star Green Building Engineer
 
Engineering, Energy, and the Environment, LLC
"The Green Group"
420 North 5th Street, Suite 305, Minneapolis, MN 55401-1348
(612) 327-4210
 
 
 
 
 
-----Original Message-----
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Nick Doylend
Sent: Tuesday, February 12, 2008 3:58 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] 90.1 and infiltration/air-tightness?



Hi, I'm wondering if 90.1 makes any stipulations regarding building air
infiltration, for example can there be a difference between proposed design
and energy budget building?  I can't seem to find any reference to facade
air tightness but the standard is a pretty dense document to wade though.
Is there a more easily digested summary available anywhere?

Thanks,

Nick


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