Related provisions contained in the ontario electrical safety code.
Attic hatch size ontario building code.
The vertical height shall be measured from the top of the ceiling framing members to the underside of the roof framing members.
Access 1 everyattic or roof space shall be provided with an access hatch where the attic or roof space a measures not less than i 10 m in area ii 1 000 mm in length or width and iii 600 mm in height over at least the area described in subclauses i and ii or.
Lightweight door easy 1 person install alternative to pull down ladders e z hatch mark d.
The icc code requires that the opening be 32 x 24 and rise at least 3 1 2 above the highest level of ceiling joist and or truss bottom cord.
The ontario building code attic or roof space access.
Atticor 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.
1 an atticor roof spacemore than 600 mm high shall be provided with access from the floorimmediately below by a hatchway not less than 550 mm by 900 mm or by a stairway.
The ontario building code online.
Here s the full text of the code.
Additionally a platform shall be immediatly to the edge of the opening that extends 32 x 24 and attached so that a person can come up through the hole and place their full body weight on it.
And joists 16 o c.