[Trace-users] Trace-users Digest, Vol 16, Issue 1

[Hernandez, Arturo]

Fareed,

 

You should model your building as one building and prorate the LEED
score card. 

The big thing to remember here is that for the existing portion of the
building you are able to compare your design to the existing envelope
(walls, windows, roof, etc) regardless of the scope of work as indicated
in Appendix G. However, for the new portion of your building you will
need to compare the envelope to ASHRAE 90.1 as if it were any other new
construction.

 

 

ARTURO HERNANDEZ, Mechanical Engineering



 

From: trace-users-bounces at lists.onebuilding.org
[mailto:trace-users-bounces at lists.onebuilding.org] On Behalf Of Stephen
Smith
Sent: Monday, November 02, 2009 2:52 PM
To: Shariq_Ali at URSCorp.com; trace-users at lists.onebuilding.org
Subject: Re: [Trace-users] Trace-users Digest, Vol 16, Issue 1

 

Shariq,

 

The only baseline is the 90.1 baseline.  G1.2 requires compliance with
sections 5,6,7,8,9, and 10 while applicability criteria in 90.1 section
4.2.1.2 and 4.2.1.3 indicates that additions and alterations to existing
buildings must comply with sections 5,6,7,8,9,and 10 or 11.  So through
the commutative property of ASHRAE logic, the Appendix G baseline
applies to existing buildings and only to the actual addition or
alteration that is being considered under 90.1.  

 

Regards,

Stephen

________________________________________________________________________
__

Stephen M. Smith, EI, LEED AP | Elm Engineering, Inc. | 212 S Tryon St |
Suite 1375 | Charlotte, NC 28281

PHONE 704-335-0396 | FAX 704-335-0399 | www.elmengr.com
<http://www.elmengr.com/> 

 

From: trace-users-bounces at lists.onebuilding.org
[mailto:trace-users-bounces at lists.onebuilding.org] On Behalf Of
Shariq_Ali at URSCorp.com
Sent: Monday, November 02, 2009 3:36 PM
To: trace-users at lists.onebuilding.org
Subject: Re: [Trace-users] Trace-users Digest, Vol 16, Issue 1

 

Fareed,

What are the statements your looking for clarification on? If your
project is an NC project, you should do one energy model for the
facility. You'll have a baseline case and a proposed design case. Look
up some past posts on this forum and CIRs about existing building
modeling. I want to say 90.1 allows the baseline to be modeled one of
two ways: either as the existing building, or as the 90.1 baseline as
defined per the standard. Not sure on this - but a little research
should clear it up. 

Take care,
Shariq

Shariq Ali EIT, LEED AP
Mechanical Engineer
URS Corporation
1375 Euclid Ave. Suite 600
Cleveland, OH 44115
Direct: 216.622.2276
Fax: 216.622.2428

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