Roof Hatch Ladder Requirements

The distance from the centerline of rungs or cleats to the edge of the hatch opening on the climbing side shall be not less than 24 inches for offset wells or 30 inches for straight wells.

Roof hatch ladder requirements.

Each roof hatch is tested in the plant to assure smooth opening and closing with one hand. Although a current osha requirement our fall protection inspection teams see ladders that do not pass the simple climbing width regulation of a minimum of 16 inches. 1009 16 2 protection at roof hatch openings. Roof hatch design as previously mentioned roof hatches provide workers along with their tools and equipment easy access to roof areas.

All products feature engineered lift assistance for easy one hand operation. Per osha 1910 23 b 4 ladder rungs steps and cleats have a minimum clear width of 16 inches measured before installation of ladder safety systems for fixed ladders. A variety of special sizes are also available to provide an accessible way to install or remove large pieces of equipment from a building. Also the american national standards institute ansi standard a14 3 1992 safety requirements for fixed ladders section 5 2 3 1 extensions for individual rung ladders stipulates that the general requirement for extension of the ladder above the access egress level does not apply to ladders intended for manholes and terminations with hatches.

When the length of a hatch reaches 5 5 or longer a 2 point slam lock is used. Bilco roof hatches provide safe and convenient access to roof areas by means of an interior ladder ship stair or service stair. The most common types of hatches that serve this purpose are single leaf models which have one cover and accommodate a single person. The minimum perpendicular distance from the centerline of the steps or rungs or grab bars or both to the nearest permanent object in back of the ladder is 7 inches 18 cm except for elevator pit ladders which have a minimum perpendicular distance of 4 5 inches 11 cm.

Hatches of length 4 6 or less are equipped with a 1 point zinc plated cablock and any hatch longer than this are equipped with a 2 point cablock.