Sec. 2. As used in this chapter, "school building" means a building used as part of or in connection with the operation of schools and includes the:
(1) site for the building;
(2) equipment for the building; and
(3) appurtenances to the building, such as heating facilities, water supply, sewage disposal, landscaping, walks, drives, and playgrounds.
However, the term does not include a building that is designed for and to be used exclusively for interschool athletic contests.