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OBC DIVISION B · PART 3 · SECTION 3.6 — SERVICE FACILITIES

What are the incinerator room requirements in the Ontario Building Code?

Rooms containing incinerators require an enhanced fire separation, commonly 2 h, and are treated as high-hazard service rooms. Associated refuse chutes need dedicated protected shafts, sprinkler protection and properly separated intake and discharge rooms.

Code reference
Incinerators must be located in dedicated service rooms separated from the remainder of the building by fire separations with an elevated fire-resistance rating, generally higher than ordinary service rooms. Refuse chutes serving such rooms are regulated as dedicated vertical service spaces with protected enclosures, sprinklered chutes and rated intake and discharge compartments.
OBC Division B, Subsection 3.6.2.

Paraphrased for clarity — open this provision in the BUILDAiD Library for the exact wording.

What this means in practice

True incinerators are now rare in Ontario buildings, but the provisions still matter for legacy high-rise residential buildings and for renovations that touch old chute and incinerator rooms. If you are decommissioning an incinerator, the chute often remains as a refuse chute, keeping its sprinkler, enclosure and rated-door requirements alive. When altering these areas, verify existing separations actually achieve their ratings, since decades of penetrations and corroded chute doors commonly degrade them.

Plain language

A room with a garbage incinerator is one of the riskiest spots in a building, so the code wraps it in extra-heavy fire-rated construction. The garbage chutes feeding it also need their own protected, sprinklered shafts and fire-rated doors.

Related questions

What fire separation is required for service rooms in Ontario?Where can fuel-fired appliances be located in a Part 3 building in Ontario?What does the Ontario Building Code require for electrical vaults and transformer rooms?

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This page is provided for general information. Building code requirements depend on your specific project, occupancy and municipality, and code editions change. Always verify requirements against the current Ontario Building Code and confirm with your local building department.