Buildings with combustible ceiling or roof construction shall have an attic access opening to attic areas that exceed 30 square feet 2 8 m2 and have a vertical height of 30 inches 762 mm or greater.
Attic hatch size ontario building code.
Here s the full text of the code.
Lightweight door easy 1 person install alternative to pull down ladders e z hatch mark d.
Related provisions contained in the ontario electrical safety code.
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.
The ontario building code attic or roof space access.
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.
Solutions for the new code requirements r 42 attic access hatch fits between trusses 24 o c.
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.
Atticor roof space access.
The ontario building code access 9 19 2 1.
The vertical height shall be measured from the top of the ceiling framing members to the underside of the roof framing members.
And joists 16 o c.