[Equest-users] Existing Building LEED Baseline

[Li, Lan]

Why do we need rotate a building if it is an existing?

-----Original Message-----
From: STEVE SAMENSKI [mailto:steve at thespinnakergroupinc.com] 
Sent: Monday, February 22, 2010 2:36 PM
To: omoltay at mimtarch.com; bldg-sim at lists.onebuilding.org
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Existing Building LEED Baseline

Omer -- the method you describe is roughly what I do as well.  It has
been
accepted in the past.

The only difference is that I do not change the SHGC for northern-facing
windows.  I use the same SHGC for all orientations.  This is
conservative,
but it's easier to model and I have yet to encounter a construction team
that wants to use different glass on different facades.

Steve Samenski, PE, LEED AP
http://equest-diary.livejournal.com/

On 2/22/10 3:14 PM, "omoltay at mimtarch.com" <omoltay at mimtarch.com> wrote:

> Dear All,
> 
> Just want to have your opinions about this: Since the building we are
> applying for LEED certification is an existing building (and there are
no
> additions), the building envelope in our baseline model is identical
to
> the existing conditions in real life. We have interpreted this to also
> include the SHGC on the windows and any fixed shading devices on the
> windows, so these we have also modeled as existing in real life.
> 
> I assume this would further mean that when we are doing the baseline
> simulation in four rotations, we do not need to change anything with
the
> SHGC's on the windows in each rotation.
> 
> Although according to Appendix G I believe this should be the way
(since
> the remark involving existing buildings is printed as the last entry
in
> the table), I still have some doubts as in the LEED NC reference guide
> they have only printed that remark for the building envelope involving
> opaque surfaces, and the criteria involving windows seems to be
> independent of this (on p.270).
> 
> Thanks for any replies,
> 
> Omer Moltay, LEED AP
> Mimta Ltd.
> 
> _______________________________________________
> Equest-users mailing list
> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to
> EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
>