Architectural · A-XMYPZ

Roof Hatch and Access Ladder Detail

Materials

Elements

Walls Stairs Roofs Floors / Slabs Decks Bracing Waterproofing / Flashing Insulation Site / Paving Anchors / Embeds Connections / Plates Reinforcing Roof / Floor Openings

Connections

Bracing Connection Bolted Connection

About this detail

A roof hatch and access ladder assembly penetrates a roof deck and structural framing. The roof hatch features a curb with integral cap flashing, a base flashing system, and roofing per specifications over rigid insulation and steel roof deck or sheathing. The opening is framed with 3x3x1/4-inch angles between structural framing with a deck closure angle all around. The access ladder utilizes 2-1/2x3/8-inch flat bar stringers spaced 22 inches apart, anchored with 3/8-inch bent plate anchors at 2 feet 6 inches on-center vertically maximum. The stringers are braced at the floor, top of the wall, and roof, and secured to the wall with 3/4-inch lag bolts and solid blocking in the wall at 8 feet on-center maximum, with stringers bolted to the floor using 3/8-inch bent plates. An OSHA compliant extension pole is included.

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