Cornices and parapet systems often add elegance to buildings, but they also create drainage challenges. The Zurn Z181 Cornice Roof Drain is designed to efficiently capture and redirect rainwater from these architectural features, preventing damage while maintaining aesthetics. Built with heavy-duty construction and compact design, the Z181 ensures both function and form are preserved. This guide highlights its features, applications, installation notes, and includes a case study.

Zurn Z181 Cornice Roof Drain Schematic

What Is the Zurn Z181?

The Z181 is a cornice roof drain crafted to fit parapets, ledges, and projecting roof structures. It is constructed from durable cast iron with a corrosion-resistant finish. The design incorporates a fixed grate to capture water and prevent debris from clogging the system. Compact yet powerful, the Z181 is ideal for managing runoff while blending seamlessly with architectural details.

Key Features & Benefits

• Cast Iron Body: Ensures strength, durability, and resistance to wear from outdoor exposure.
• Fixed Grate: Allows consistent water intake while blocking leaves and debris.
• Compact Design: Fits easily into cornice and parapet systems without compromising aesthetics.
• Reliable Drainage: Prevents pooling and protects masonry, facades, and roof edges from water damage.
• Low Maintenance: Simple design means minimal upkeep for long-term performance.

Zurn Brand Quality

Applications of the Z181

• Historic and modern building cornices
• Parapet systems needing discreet, efficient drainage
• Architectural roof projections and ledges
• Commercial and institutional retrofits or new builds

Installation Considerations

Proper installation ensures long-term reliability. The Z181 should be integrated into parapet or cornice structures at natural runoff points, with secure connections to downspouts or leader piping. Installers should check for a watertight fit and allow easy access to the grate for cleaning and inspection.

Zurn Z181 Measurement Schematics

Case Study: Museum Parapet Drainage

Challenge: A downtown museum with ornate parapet detailing experienced water stains and masonry damage due to poor drainage. Traditional drains were too large and intrusive for the architectural features.

Solution: The project team selected Zurn Z181 Cornice Roof Drains for their compact size and durable build. The fixed grate design ensured efficient water capture without compromising aesthetics.

Outcome: After installation, water runoff was properly managed, eliminating staining and structural wear. Maintenance was simplified, and the museum preserved its visual appeal while gaining reliable drainage.

Conclusion

The Zurn Z181 Cornice Roof Drain provides a smart solution for managing runoff from parapets and cornices. With a cast iron body, fixed grate, and compact design, it delivers durability and efficiency while blending with architectural features. For new projects and restorations alike, the Z181 offers proven performance and lasting protection.