Minimum Roof Hatch Dimensions

1910 23 open roof hatches should be protected.

Minimum roof hatch dimensions.

Or larger are available. Ft openings as the standard for various structures. When a hatch is left in the open position personnel working atop a roof can lose their footing trip over the hatch s curb or even step backward into the areaway without looking thereby sustaining debilitating or even fatal injuries. 1910 23 osha requires fall protection for elevator work when a fall hazard is present.

1910 23 osha s requirements for locking type snaphooks on pole strap systems 03 13 1996. Grab bars not required at hatch exits. Buildings described above that require standpipes on the roof need a hatch that is at least 16 square feet in size to allow access by firefighters in full gear. Osha standard for.

The cap nail shank shall be a minimum of 12 gage 0 105 inch 2 67 mm with a length to penetrate through the roof sheathing or a minimum of 3 4 inch 19 1 mm into the roof sheathing. The rough framed opening. The 2012 international residential code requires an attic access opening for attics with an area greater than 30 square feet and a vertical height in excess of 30 inches. Recommended minimum sizes for various types of roof access are shown above.

In buildings without an occupied roof access to the roof shall be permitted to be a roof hatch or trap door not less than 16 square feet 1 5m2 in area and having a minimum dimension of 2 feet 610 mm. Be aware that there are several common sizes of hatches that are specified for buildings up to 3 stories that are smaller than that size. If movement of bulky materials through the hatch is anticipated double leaf hatches with openings up to 66 sq. All open roof hatches regardless of size or number of covers can present fall hazards.

As seen in the picture below featuring new ladder system we recommend a wider climbing surface to accommodate a ladder lifeline system and to make the ladder easier to climb.