Roof Hatch Access Ladder Requirements

Exterior roof access ladder with side exit.

Roof hatch access ladder requirements.

Ladders shall have a toe spacing not less. All open roof hatches regardless of size or. Note the bottom of the cage must be between 7 feet and 8 feet above the point of access to the bottom of the ladder. The side rails of through or sidestep ladders extend at least 42 inches 1 1 m above the top of the access level or landing platform served by the ladder.

Double leaf or two cover roof hatches are also available on the market. These hatches are typically located over a ladder or staircase that provides access to the roof. A cage is required because the ladder is in excess of 20 feet. The uppermost rung shall be a maximum of.

Ladders shall have rung spacing not to exceed 12 inches 305 mm on center. Where the roof hatch opening providing the required access is located within 10 feet 3049 mm of the roof edge such roof access or roof edge shall be protected by guards installed in accordance with the provisions of section 1013. Nystrom understands building and accessibility codes for roof hatches. For parapet ladders the access level is.

Section 1910 27 c 7 and figure d 6 attached specify the relationship for a fixed ladder to an acceptable hatch cover but there is no specific requirement for grab bars. Also note the flaring dimensions of the enclosure at the lower end of the cage. The side railing shall extend above the parapet or roof edge not less than 42 inches 1067 mm. These hatches are generally larger in order to accommodate the installation or removal of equipment or machinery into a building.