Construction Types

Type I

  • IA - Non-combustible and Fully Protected
  • IB - Non-combustible

Type II

  • IIA - Non-combustible and fully protected
  • IB - Non-combustible and unprotected

Type III

  • IIIA - Non-combustible Exterior Walls fully protected
  • IIIB - Non-combustible Exterior Walls and unprotected

Type IV

  • Heavy Timber

Type V

  • VA - Combustible and fully protected
  • VB - Combustible and unprotected