Roof Access Ladder Regulations

This is the same height that osha requires for guardrails.

Roof access ladder regulations.

24 inches this extension above the access level must be at least 24 inches wide to accommodate the width of climber s body and not more than 30 inches of clearance allowing the climber to easily reach both hand rails. 1910 23 d 4 i the roof if the parapet is cut to permit passage through the parapet. 1910 27 d 2 iii one rung of any section of ladder shall be located at the level of the landing laterally served by the ladder. Per osha 1910 23 d 4 the side rails of through or sidestep ladders must extend 42 inches above the top of the access level or landing platform served by the ladder.

These hatches are typically located over a ladder or staircase that provides access to the roof. All landing platforms shall be equipped with standard railings and toeboards so arranged as to give safe access to the ladder. Fixed ladders without cages must now have a landing platform at maximum intervals of 150 feet. Ladders with cages must now have a landing platform at maximum intervals of 50 feet.

The new regulations change this requirement dramatically. Previously a fixed ladder with a cage required a landing platform at a maximum interval of 30 feet. Here are the basics of the requirements. For parapet ladders the access level is.

Cages must extend 42 inches above the top of the landing. Through fixed ladders at their point of access egress shall have a step across distance of not less than 7 inches 18 cm nor more than 12 inches 30 cm as measured from the centerline of the steps or rungs to the nearest edge of the landing area. Double leaf or two cover roof hatches are also available on the market. These hatches are generally larger in order to accommodate the installation or removal of equipment or machinery into a building.

The regulations say that if a fixed ladder is taller than 20 feet you are required to have a cage which meets all the requirements of 29 cfr 1910 27 d. Platforms shall be not less than 24 inches in width and 30 inches in length.