HI

We have a workshop building targeting for LEED NC.
The whole workshop is covered by one huge roof with TWO small air conditioned lab workshop and the rest of the space is naturally ventilated. ( no envelope)

The two air conditioned lab workshops share the same air cond system but both the spaces are not connected.

How should we access this workshop?
How do we carry out the energy simulation? What should be the envelope or WWR? since the whole workshop doesn't really have an envelope, it's naturally ventilated.

appreciate your help. many thanks