The Ontario Building Code | Special and Unusual Structures
3.2.2.2. Special and Unusual Structures
(1) A structure that cannot be identified with the characteristics of a building in Articles 3.2.2.20. to 3.2.2.83. shall be protected against fire spread and collapse in conformance with good fire protection engineering practice.
In Plain Language
Structures that don't fit the standard building categories in Articles 3.2.2.20 to .83 must still be protected against fire spread and collapse, based on sound fire protection engineering judgment rather than a specific prescriptive table.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.