Architectural · A-DG8WB

Curtain Wall Sill and Cornice Drain Transition Detail

Materials

Concrete Steel Timber / Wood Gypsum / Drywall

Elements

Walls Curtain Walls Floors / Slabs Waterproofing / Flashing Drainage Site / Paving

Connections

HSS Connection

About this detail

A curtain wall sill transitions over a concrete slab and metal deck with a built-in concrete curb and cornice drain featuring a clamping ring. The assembly incorporates nested studs, five-eighths-inch exterior Type X gypsum sheathing, and aluminum panels tied back with fastener clips sealed over horizontal surfaces. Waterproofing layers include uncured neoprene flashing, painted aluminum reglet and counter-flashing, drainage and protection courses, and a river rock ballast bed. Sealant beds and backer rods provide continuous weather sealing at joints.

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