In Plain Language

This clause requires the fire alarm system's audible signal to be loud enough, and its visual signal (where required) to be bright enough, to alert occupants throughout the building, including in noisy areas or where occupants may have a hearing impairment.

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.