Architectural · A-X6QYG

Roof Hatch and Metal Wall Cap Detail

Materials

Concrete Steel Timber / Wood Metal (misc.)

Elements

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

Connections

Bracing Connection Bolted Connection

About this detail

A roof hatch access opening is framed with 3x3x1/4-inch angles between structural framing members, equipped with clasps for padlocks to meet the minimum 16 square foot code requirement. A 2-1/2x3/8-inch flat bar stringer is spaced 22 inches apart with 3/8-inch bent plate anchors at 2 feet 6 inches on center vertically maximum, anchored to the concrete exterior wall. The stringers are self-supporting for the unbraced length to the roof deck and braced at the floor, top of wall, and roof. The curb features an integral cap flashing and base flashing system over roofing per specifications with a deck closure angle all around the opening. The concrete exterior wall is topped with a metal cap flashing with caulked joints, a 20-gauge Pac-Clad midnight bronze metal fascia flashing system, 8-inch steel studs anchored to the concrete exterior wall, and a Dens Deck or approved equal substrate.

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