[Equest-users] LEED EA comments about Model Area and the architecture GFA

[Patrick J. O'Leary, Jr.]

is your building single story or multiple story?  40,000 sf is a huge 
difference. two things i would check first are:

1.  are parts of the building, in the architectural square footage, 
exterior?  i.e the 1st floor plan sf the architect is using has canopy 
area, or is there a walkway under part(s) of the building if it is 
multistory?

where did the architect get the sf number they are using?  and how does 
it impact calculations in other points?

2.  does part of the building have plenums?  plenum zones in the sv-a 
reports will show up in the area sf so if you have a vertical building & 
some floors have plenums while others don't this can skew the sf on the 
sv-a reports though not on the sf reported as the building/floor 
footprints.


On 2/28/13 5:40 AM, Jenny Zhang wrote:
>
> Dear All friends,
>
> I got a LEED EA Cr1 review comment from GBCI.
>
> It's about the model area and architecture Gross square footage. The 
> total building area in the simulation report is 1,121,319.6 square 
> feet and the area in architecture documents is 1,161,727.32 square 
> feet. The comments said that the area value in the model should be 
> consistent with all other credits and LEED online and/or provide a 
> supplemental narrative explaining the discrepancy.
>
> As a energy modeller I think all of you know that the area in the 
> model could not be easily consistent with the architecture CAD 
> drawings. Although In the footprint drawing stage I was very care 
> about each floor' area(because I understand the area in the model 
> should be consistent with CAD drawings especially when it was for a 
> LEED model), it still results discrepancy in the two area values.
>
> Now the difference about the two area values is about 40407.4 sqft 
> (3754sqm), and it is only 3% of the total area. It's hard to revise 
> the model in this stage, but what I should do to explain the 
> discrepancy. Does anybody here have experience to deal with this 
> problem?  And do you know how much difference (%) could be accepted by 
> the review team?
>
> Thanks for your attention.
>
> Jie Zhang
>
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