Div. B › Part 3 › 3.6 › 3.6.4 — Horizontal Service Spaces and Service Facilities

3.6.4.4 — Attic or Roof Space Access

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(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.

OBC Definitions

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attic or roof space

means the space between the roof and the ceiling of the top storey or between a dwarf wall and a sloping roof.

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