Architectural · A-J5ZM3

Pre-Manufactured Curb Flashing

Materials

Concrete Steel Timber / Wood Glass / Glazing Metal (misc.)Membrane / Roofing

Elements

Beams Roofs Floors / Slabs Decks Waterproofing / Flashing Insulation Site / Paving Anchors / Embeds Connections / Plates Roof / Floor Openings

Connections

Base Plate / Anchorage Welded Connection

About this detail

The assembly is supported by a roof beam with spray-applied fire-resistive material and a concrete slab on metal deck. A self-adhered vapor retarder extends the full height of the insulation. Polyiso rigid roof insulation with inorganic coated-glass facers provides a minimum R-30 thermal value beneath a quarter-inch recovery board. A sixty-mil felt-backed fully adhered PVC roof membrane is hot-air welded at seams. A pre-manufactured curb includes solid blocking or metal strapping anchored with number fifteen screws at twelve inches on center through a stainless steel termination bar, with continuous sealant behind the top edge. A twenty-four gauge galvanized sheet metal skirt flashing is primed and painted, secured with self-tapping skirt metal screws through sealing washers at twelve inches on center, two per side minimum. A separate application of tool-finished convex sealant sheds water.

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