The Ontario Building Code | Tire Storage
3.3.6.5. Tire Storage
(1) A tire storage area intended for the storage of more than 375 m3of tires shall be separated from the remainder of the buildingby a fire separation having a fire-resistance rating of not less than 2 h.
In Plain Language
A tire storage area holding more than 375 cubic metres of tires must be separated from the rest of the building by a fire separation rated at least 2 hours, since large tire stockpiles burn intensely and are difficult to extinguish.
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.