1. A process, comprising: providing at least one computer input field for a user to input location data generally corresponding to a location of a building; providing visual access to a first aerial image of a region including a roof structure of the building corresponding to said location data, the first aerial image having a first resolution; providing a computer input capable of signaling user-acceptance of a final location within the first aerial image; and providing visual access to one or more second aerial images of an aerial imagery database corresponding to location coordinates of the final location, the one or more second aerial images having a second resolution that is higher resolution than the first resolution.