The Ontario Building Code | Vertical Service Spaces for Dumbwaiters Vertical service Spaces for Dumbwaiters

(1) A vertical service space containing a dumbwaiter shall be separated from all other portions of each adjacent storey by a fire separationhaving a fire-resistance rating conforming to Table for the fire-resistance rating required by Subsection 3.2.2. for,

(a) the floor assembly above the storey,or

(b) the floor assembly below the storey, if there is no floor assembly above.