Code Library › Volume 1 › Section 3.6 — Service Facilities
PART 3 — FIRE PROTECTION, OCCUPANT SAFETY AND ACCESSIBILITYUpdated for the 2024 Ontario Building Code

3.6.4.4.Attic or Roof Space Access

(1) An attic or roof space more than 600 mm high shall be provided with access from the floor immediately below by a hatchway not less than 550 mm by 900 mm or by a stairway.
← Previous3.6.4.3. Plenum RequirementsNext →3.6.4.5. Horizontal Service Space Access

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.