Canadian building code question

What are the building code requirements for temporary structures and tents in Canada?

Temporary structures, tents, and air-supported structures are regulated by both the building code and the fire code. Requirements depend on the size, intended use, occupant load, and duration of use. A building permit may or may not be required depending on the jurisdiction and structure type.

Temporary structures — event tents, construction shelters, seasonal buildings, air-supported structures — occupy a grey area in code compliance that often catches owners and organizers off guard. The building code, fire code, and local bylaws may all apply, and the trigger for a permit depends on the structure's size, use, and duration. Start by checking whether the structure triggers building code and fire code requirements in the applicable jurisdiction.

What to check first

  • Temporary structures may require permits depending on size, occupant load, duration, and local bylaw requirements.
  • The fire code imposes specific requirements for tents and temporary structures, including flame-spread ratings, exits, and fire extinguisher provisions.
  • Air-supported structures have additional requirements for structural design, anchorage, and emergency deflation procedures.

Jurisdiction notes

National baseline

Check the NBC for any provisions applicable to temporary structures and the National Fire Code for tent and temporary structure fire safety requirements.

Permit triggers

Building permit requirements for temporary structures vary by municipality. Some jurisdictions exempt small structures or short-duration installations from permit requirements.

Fire code requirements

The fire code applies to tents and temporary structures regardless of building permit status. Check flame-spread, exit, and fire safety provisions.

Work through it in this order

  1. Determine the structure type, size, intended use, occupant load, and duration of installation.
  2. Check whether a building permit is required under the applicable provincial building code and local bylaws.
  3. Review fire code requirements for tents and temporary structures, including flame-spread, exits, and fire safety equipment.
  4. Verify structural requirements for wind loading, anchorage, and any special conditions for the structure type.

Common questions

Do temporary structures always need a building permit?

Not always. Permit requirements depend on the structure size, occupant load, duration, and local jurisdiction. Check with the local building department.

What fire safety requirements apply to event tents?

The fire code typically requires flame-resistant materials, adequate exits, fire extinguishers, and may require additional provisions based on occupant load and the presence of cooking or heating equipment.

Are air-supported structures treated differently from tents?

Yes. Air-supported structures have additional requirements for structural design, anchorage, emergency deflation, and may be subject to different building code provisions than tents.