Architectural · A-JY67A

Roof Hatch and Curb Detail at Concrete Deck

Materials

Concrete Steel Cold-formed Steel Timber / Wood Metal (misc.)

Elements

Walls Roofs Decks Foundations / Footings Waterproofing / Flashing Insulation Site / Paving Roof / Floor Openings

About this detail

A roof hatch and curb assembly is installed on a concrete on steel deck roof structure. The Babcock Davis SRCG roof hatch features a curb with integral cap flashing, one inch rigid fiberboard insulation around the curb, a lifting mechanism housing, and an automatic hold-open arm with cover release. The cover includes one inch fiberglass insulation throughout, a spring latch with inside-outside handles, a padlock hasp, a two-point lock, and a red vinyl grip. The surrounding roof assembly consists of a single-ply roofing membrane system turned up the wall, a half-inch Dens Deck protection board over five and a half inches of rigid insulation, a continuous fire-treated nailer, and a half-inch exterior sheathing on metal stud framing. Coated sheet metal is provided at the corners, and the assembly interfaces with concrete and metal deck over steel framing.

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