For prescriptive compliance, is a CI project required to meet continuous insulation requirements for building envelope if it is not part of their project scope, even if there is nothing in the lease prohibiting us from doing so? Or do we have to add insulation to existing walls, ceilings and floors just to meet credit intent? For example, a reno in an old building, the whole building (5 floors) is being rented by the client, but they are only renovating and certifying one floor.

Would it be different if part of the envelope is being renovated, say the walls, but the floor and ceiling are only getting new finishes, would the floor and ceiling need added insulation?