[BLDG-SIM] LEED EA Prerequisite 1 and eQUEST
Dana Troy
DTroy at glumac.com
Mon Nov 12 15:48:32 PST 2007
EAp2 requires compliance with both sections 5.4-10.4 (mandatory requirements) and 5.5-10.5 (prescriptive requirements). From my understanding, using Appendix G to determine EAc1 points demonstrates compliance with only prescriptive requirements, and not with the mandatory requirements. These requirements include labeling of mechanical equipment (6.4.1.5.1), service hot water piping insulation (7.4.3), and other requirements that cannot be described in an energy model.
The LEED NC 2.2 reference manual says on page 164: "If energy simulations have been developed to document points earned for EA Credit 1, these energy simulations may be used rather than the ECB to demonstrate compliance with the prerequisite," but later in Table 2 on page 167 says that the mandatory measures for "all projects" must be met.
Has anyone dealt with this issue directly?
Dana Troy
Energy Analyst
<http://www.glumac.com/>
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320 SW Washington, Suite 200
Portland, OR 97204-2640
T. 503.227.5280 F. 503.274.7674
D. 503.345.6286
dtroy at glumac.com
Thinking. Inside the building.
www.glumac.com <http://www.glumac.com/>
-----Original Message-----
From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com]On Behalf Of Ross-Bain, Jeff
Sent: Monday, November 12, 2007 3:07 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] LEED EA Prerequisite 1 and eQUEST
Peter,
You are correct in the interpretation of the ASHRAE rules and regulations.
However, for those working on a LEED project, the USGBC allows the Appendix G analysis to suffice for the minimum energy performance prerequisite. I was doing both (Appendix G and ECB) until I learned about this allowance, which is stated in the LEED-NC Reference Guide (Oct 2005) on page 164. I guess you could produce a reduced energy use building with Appendix G and not meet ECB; but to meet the LEED point threshold (10.5%) it's still most likely you meet ECB.
Regards,
Jeffrey G. Ross-Bain, PE, LEED
Smith Dalia Architects
621 North Ave NE
Suite C-140
Atlanta, GA, 30308
404-892-2443
<http://www.smithdalia.com> www.smithdalia.com
P Consider the environment. Please don't print this e-mail unless you really need to.
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From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Peter Alspach
Sent: Monday, November 12, 2007 5:14 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] LEED EA Prerequisite 1 and eQUEST
It is my understanding that what you state below is not actually correct. demonstrating savings via Appendix G does not demonstrate compliance with the standard. If you do not meet the mandatory provisions you do not meet the prerequisite. If you do not meet the prescriptive requirements then officially you need to demonstrate compliance via the ECB method (chapter 11) in a pass/fail mode.
provided you pass, then you use Appendix G to demonstrate savings.
all - correct me if I am wrong here.
Peter
_____
From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Vikram Sami
Sent: Monday, November 12, 2007 12:28 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] LEED EA Prerequisite 1 and eQUEST
Thanks to everyone for weighing in on this. It turns out my question regarding LEED was a little premature - you can use your Appendix G documentation for this.
Which brings up the question - given that LEED now requires a minimum of 2 energy reduction credits to be earned, what's the point of the prerequisite documentation?
Vikram Sami, LEED AP
Direct Phone 404-253-1466 | Direct Fax 404-253-1366
LORD, AECK & SARGENT ARCHITECTURE
1201 Peachtree Street NE, Suite 300, Atlanta, GA 30361
Responsive Design * Technological Expertise * Exceptional Service
www.lordaecksargent.com
Please don't print this email unless you really have to.
In the United States, we use enough office paper each year to build a 10-foot high wall that's 6,815 miles long or two and a half times the distance from New York to Los Angeles.
~ Wisconsin Department of Natural Resources, "Recycling Facts and Figures," PUBL CE-163, 2002.
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From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Aulbach, John
Sent: Monday, November 12, 2007 2:55 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] LEED EA Prerequisite 1 and eQUEST
Vik:
eQuest in its present form only can develop California Title 24 forms. There IS a 90.1 Version in the works, but it is not yet available. Stay tuned.
_____
From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Doug Gwaltney
Sent: Monday, November 12, 2007 11:15 AM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] LEED EA Prerequisite 1 and eQUEST
Vik,
I believe eQUEST will only produce overall performance for Title 24 not the prescriptive forms.
Doug Gwaltney
Barrett, Woodyard & Associates
770.810.8800 Office 678.301.2235 Direct
770.810.8808 Fax
_____
From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Vikram Sami
Sent: Monday, November 12, 2007 11:31 AM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] LEED EA Prerequisite 1 and eQUEST
Has anyone used eQUEST to document the EA prerequisite (compliance with 90.1 or other codes)? I suspect eQUEST does not do that for anything other than Title 24 - am I correct?
Vikram Sami, LEED AP
Direct Phone 404-253-1466 | Direct Fax 404-253-1366
LORD, AECK & SARGENT ARCHITECTURE
1201 Peachtree Street NE, Suite 300, Atlanta, GA 30361
Responsive Design * Technological Expertise * Exceptional Service
<file:///\\www.lordaecksargent.com> www.lordaecksargent.com
Please don't print this email unless you really have to.
One tree makes 16.67 reams of copy paper or 8,333.3 sheets
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