The Ontario Building Code | Janitors’ Rooms
220.127.116.11. Janitors’ Rooms
(1) Except as permitted by Sentences (2) and (3), a room or space within a floor area for the storage of janitorial supplies shall be separated from the remainder of the buildingby a fire separation having a fire-resistance rating not less than 1 h.
(2) The fire-resistance rating of the fire separation required by Sentence (1) is permitted to be not less than 45 min provided the fire-resistance rating required by Subsection 3.2.2. is permitted to be less than 1 h for,
(3) The fire separation required by Sentence (1) is not required to have a fire-resistance ratingif the floor area in which the room or space is located is sprinklered.