Is anyone aware of this CIR being upheld?

12/10/2008 - Credit Interpretation Request

The team is requesting that you please verify the meaning of the
sentence in ASHRAE 90.1, Table G3.1 regarding baseline

envelope requirements for existing buildings.."For existing building
envelopes, the baseline building design shall reflect existing

conditions prior to any revisions that are part of the scope of work
being evaluated". Please confirm if this means that the walls, roof,

windows, etc for the baseline is to be modeled to match the existing
conditions NOT according to the values in Table 5.5-1 thru 5.5-

8.

2/20/2009 - Ruling

If an existing envelope component is untouched, the baseline is as that
component exists. However, if an existing component is

modified, the baseline needs to meet the requirements for alterations in
Section 5.1.3.

It indicates that when modifying the existing envelope, the baseline
needs to meet the minimum requirements of Chapter 5.

Have users in the group received comments from the reviewers when trying
to model modified envelopes at the existing performance values, because
all language regarding this issue other than the CIR indicate that
existing envelopes get to be modeled at existing performance conditions
regardless of any alterations.

Thanks

Alan Jackson, LEED AP