[Equest-users] Projecting Balconies in Baseline Model

[Bishop, Bill]

If you model the balcony slabs as building shades (how else would you model them?) and set the TRANSMITTANCE = 1 in the baseline "so that it does not shade itself", the modeling results should be the same as if there were no building shades. So you can add building shades for balconies in the baseline (or leave them in if starting from the proposed model) if you want to show them in a 3-D representation, but either way you should not "model" their shading effect in the baseline for LEED/App. G.

Regards,
Bill

[cid:image001.png at 01CD4492.3158A760]<mailto:wbishop at pathfinder-ea.com>


From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Gurneet Singh
Sent: Thursday, June 07, 2012 1:50 AM
To: omoltay at mimtarch.com
Cc: eQUEST Users List
Subject: Re: [Equest-users] Projecting Balconies in Baseline Model

Dear Omer,

I would model the balcony in both baseline and proposed case as I feel adding a balcony is more of a functional requirement rather than a shading requirement. As per ASHRAE the building shall be modeled so that it does not shade itself, so I would model the balcony but make the self shading off or heat transmittance as 1.

Regards

Gurneet Singh
Director

Environmental Design Solutions Pvt. Ltd.
D-1/25, Vasant Vihar, New Delhi 110057

[m] +91 9899240140    [t] +91 11 2614 7085    [f] +91 11 4056 8633
gurneet at edsglobal.com<mailto:dharashah at edsglobal.com> | www.edsglobal.com<http://www.edsglobal.com/>


On Wed, Jun 6, 2012 at 3:36 AM, Ömer Moltay <omoltay at mimtarch.com<mailto:omoltay at mimtarch.com>> wrote:
Dear All,

In a high rise building we are working on for LEED certification, each floor has balcony slabs that provide a great deal of shading to the spaces in the floor below. The balconies circumvent the whole floor plan. They are part of the passive features to decrease cooling loads. Would these be considered "shading projections" and not be modeled in the baseline building? This is what we wish to do, but have doubts whether the USGBC would reject this modeling approach?

Thank you,

Omer Moltay, LEED AP BD+C, ASHRAE BEMP, BREEAM Assessor
Mimta
Hekimsuyu Cad. 559. Sk. No:39 34255
Kucukkoy Istanbul Turkey
Tel: 90-212-617-2296
Fax: 90-212-617-2297
www.mimtarch.com<http://www.mimtarch.com>
www.eko-yapi.net<http://www.eko-yapi.net>
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