[Bldg-sim] Core and Shell Office Buildings: Do you model conference rooms

Wealend, Edwin e.wealend at cundall.com
Wed Nov 12 17:34:53 PST 2014

Hi Nick,

We’ve used 10% as a standard proportion for meeting/conference spaces in a C&S office for LEED previously with no issues. We’ve had comments specifically targeting this as a requirement for 62.1 calculations in C&S buildings when you have a multi-zone VAV system – or any other system where the fresh air is a variable proportion of the conditioned air. We produced a notional floor plan suggesting how it could be zoned, although the level of detail used was minimal. This seems sensible given that the building upon fit-out will have a variety of space types, which will usually follow a relatively predictable layout and the design should be capable of coping with this.

Hope that helps,

Edwin Wealend
Principal Engineer
Cundall Engineering Design Consulting (Shanghai) co., Ltd
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From: Nicholas Blanton [mailto:nicholas.blanton at arup.com]
Sent: 12 November 2014 06:15
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Core and Shell Office Buildings: Do you model conference rooms


For a C&S office building, it seems there are no hard rules on how to handle conference rooms. My approach is to use a percentage of total office area 10-15%, as this gives realistic ventilation rates as well as internal people gains.

As is typical of highly ventilated interior zones, I may be seeing a penalty associated with modeling conference space in this way.

Any thoughts are appreciated.


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