The standards and specifications adopted by the state building code commissioner and as set forth in this chapter shall apply to all public and private buildings and facilities, temporary and permanent, used by the general public. The specific occupancies and minimum extent of accessibility shall be in accordance with the conforming standards set forth in section 104A.6. In every covered multiple-dwelling-unit building containing four or more individual dwelling units the requirements of this chapter and those adopted by the state building code commissioner shall be met. However, this chapter shall not apply to a building, or to structures or facilities within the building, if the primary use of the building is to serve as a place of worship.