Architectural · A-NHEBK

Roof Access Hatch and Safety Rail Installation

Materials

Concrete Steel Timber / Wood Metal (misc.)Gypsum / Drywall Membrane / Roofing

Elements

Walls Railings / Guards Roofs Parapets Decks Waterproofing / Flashing Insulation Site / Paving Connections / Plates Roof / Floor Openings

Connections

Welded Connection Rebar Splice / Development Deck Attachment

About this detail

A roof access hatch assembly is installed over a concrete roof deck with an insulated metal roof system. The hatch curb is set upon two-by wood blocking as specified to achieve a minimum flashing height of twelve inches above the finished roof surface. Waterproofing consists of an EPDM membrane roof system, vapor barrier, rigid insulation, and eighteen-inch EPDM curb flashing heat-welded to the field sheet. A perimeter safety rail and swing gate with powder-coated components are fastened to the roof hatch according to the manufacturer's recommendations, designed to prevent the passage of a twenty-one-inch sphere. A roof opening frame angle is provided per structural drawings.

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