Referencing 90.1 Table G3.1.5: I understand that the envelope for an existing building baseline model should reflect existing conditions concerning thermal properties of walls and windows. It also seems to be the consensus that you don't rotate the baseline building as you would for new construction (please confirm...). So this is the question that remains for me: Does an existing building have to follow G3.1.5c for WWR, if a particular face of the existing building exceeds 40%? Or do I follow G3.1.5f literally, including WWR?

Thanks very much for any clarification,