Architectural · A-EBX7K

Roof Drain through Concrete Wall

Materials

Elements

Walls Roofs Floors / Slabs Waterproofing / Flashing Drainage Site / Paving Roof / Floor Openings

About this detail

A roof or overflow drain penetrates a concrete tilt-up wall with a galvanized iron dryer vent type flashing painted to match the building. The drain pipe exits above grade, cut flush with the wall, sacked, patched, and sealed around the pipe with the interior painted to match the building. A concrete splash block or rip-rap is provided at landscape conditions with a twelve-inch minimum clearance above finished grade. Piping is detailed with no-hub cast iron assemblies, and pipe outlets below the slab route to the face of the curb, storm drain, or face of the panel with a minimum slope of one-eighth inch per foot. Openings are sealed typically, and the exterior concrete panel is stenciled with two-inch high painted letters reading overflow above the outlets.

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