Building rotations

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Hello,

I have a question regarding modeling for LEED. I am working on a building in New York City and it is surrounded by much higher buildings. Are we allowed to model the surrounding buildings in the baseline and design? If so, when I rotate it, do I keep readjusting it so that it doesn't intersect with the fixed shades?

It seems like the other buildings should be taken into account considering that this building is around 80% glass but does not receive a large amount of sunlight.

John Grando LEED AP

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John:

I am unsure of LEED, but I will bet you cannot use the surrounding building shading for just the complicated reasons you mention. I did a LEED Base Case of a building built into the side of foothills. When I rotated the building for the other directions, I left the undeground parts right where they were, essentially rotaing the foothills.

Otherwise, people might get "fancy" with shading.

My impression of the USGBC approach is that they are trying to "level playing field" approaches such as this.

John Aulbach

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Appendix G requires that you make all walls non-shading surfaces so I'm pretty sure you don't model the surrounding buildings for your baseline
Vikram Sami, LEED AP

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John-

You do NOT model any surrounding building in the Baseline model. In fact,
you don't take into account any type of shading benefits in the Baseline
model.

--
Steve Mignogna

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