[bldg-sim] App G 2004 question

[Rohini Brahme]

I have a question about the Appendix G in 90.1, 2004.
In Table G3.1 the baseline building is to be simulated as follows: 
" Orientation. The baseline building performance shall be generated by
simulating the building with its actual orientation and again after rotating
the entire building 90, 180, 270 degrees, then averaging the results. The
building shall be modeled so that it does not shade itself." 
What does --- the building shall be modeled so that it does not shade itself ---- mean? 
Does it mean that if there is, for example, an L shaped building (which self shades), it has to be modeled as square? rectangle?
Any thoughts on this appreciated.

Thanks
- Rohini

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