[Equest-users] Baseline for LEED Renovation Project

[Fred Betz]

Bill,

What has worked for us in the past is the Baseline is the existing envelope with a current code compliant HVAC system. 

This is per ASHRAE 90.1-2007 Appendix G Table G3.1 #5 Baseline f. Existing Buildings. 

There is no similar language for the HVAC system so a code compliant system must be used as the Baseline. 

I believe the ASHRAE folks are addressing this inconsistency in 90.1-2010. 

Anyone have a different experience?

Fred


FRED BETZ  PhD., LEED AP 
SUSTAINABLE SYSTEMS ANALYST
 
AEI | AFFILIATED ENGINEERS, INC.  
5802 Research Park Blvd. | Madison, WI  53719

P: 608.236.1175 | F: 608.238.2614  
fbetz at aeieng.com  |  www.aeieng.com  


-----Original Message-----
From: BLafley [mailto:BLafley at cetonline.org] 
Sent: Wednesday, November 17, 2010 6:42 AM
To: Equest-users at lists.onebuilding.org
Subject: [Equest-users] Baseline for LEED Renovation Project

I am modeling a building that is undergoing a major renovation for 
LEED.  I have been told the baseline building envelope should be what 
exists but have gotten a couple opinions about the baseline HVAC 
system.  Does anyone have experience with this?  It was a large 
warehouse space and will be a retail space for used building materials?

Thanks,
-- 
Bill Lafley
Energy Analyst
Center for Ecological Technology (CET)
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