An overflow roof drain pipe routes through the interior wall and penetrates the exterior wall to discharge through an overflow roof drain nozzle equipped with a stainless steel birdscreen. The exterior wall flange is secured directly to the exterior wall and sealed completely around the perimeter with caulking. The installation height above the finished grade is coordinated per the architectural elevations. The piping connects back to the main roof drain system.
EXTERIOR WALL FLANGE, SECURE TO WALL, CAULK AND SEAL ALL AROUND OVERFLOW ROOF DRAIN NOZZLE WITH SS BIRDSCREEN FINISHED GRADE OVERFLOW ROOF DRAIN PIPE FROM ROOF DRAIN INTERIOR WALL FINISHED FLOOR HEIGHT PER ARCHITECTURAL ELEVATIONS, SEE ARCH DWGS 5 6 7
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