[Bldg-sim] SF discrepancy between Daylighting model and Architecture drawings

[Chris Yates]

Different area conventions exist. For example, in the UK we have nett
lettable area and gross internal area. The former has partition thickness
subtracted whilst the latter doesn't. This can easily account for 10%
difference. I'm not sure what area convention revit defaults to (or even if
alternative conventions can be selected).

Chris

Sent from my Android device. Please excuse typos, etc.
On 20 Mar 2013 18:04, "javed iqbal" <javedvit at gmail.com> wrote:

> Per the attached Advanced Energy Modeling for LEED V2-1, which is
> available for free download from LEED On-line, page 30, it states that a
> 10% variance for built up areas is allowed.
>
> Hope this helps.
>
>
> On Wed, Mar 20, 2013 at 11:30 AM, Te Qi <gtqite at gmail.com> wrote:
>
>> Hi all,
>>
>> I am currently doing daylighting simulation for LEED 2009, but  there
>> is always SquareFootage discrepancy of each room between my daylighting
>> modeling tool and the Revit model, it just can not be 100% the same with
>> the design model. But the leed requrire the SF of each room should be same
>> with the architecure drawings and daylighting report? Could anyone help me
>> with it, is there any allowance range for the simulation method for LEED
>> 2009, which is not mentioned in the reference guide?
>>
>> Thanks so much,
>>
>> Te
>>
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>
>
> --
> *
> *
> Javed Iqbal, LEED AP, CEA
> Energy Analyst
>
>
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