The Ontario Building Code | Fire Alarm Systems
3.10.4.4. Fire Alarm Systems
(1) Except as provided in Sentence (2), the requirements in Subsection 3.2.4. shall not apply.
(2) The requirements for smoke alarms in Article 3.2.4.22. shall apply to a dwelling unit.
In Plain Language
Subsection 3.2.4's fire alarm requirements generally don't apply to single-storey self-storage buildings, except the smoke alarm requirements still apply to any dwelling unit present.
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.