The Ontario Building Code | Clearances to Flammable Material
3.14.2.4. Clearances to Flammable Material
(1) The ground enclosed by an air-supported structure and for not less than 3 m outside of such structure shall be clear of all flammable or combustible material or vegetation that will carry fire.
In Plain Language
The ground enclosed by an air-supported structure, plus at least 3 m outside it, must be cleared of flammable or combustible material or vegetation that could carry fire.
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.