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Zurn Z185 - 6" Diameter Cornice Drain

$842.80


FREE SHIPPING
SKU ZRB185-3IP

The Zurn Z185 is a cornice-type roof drain designed to manage water runoff from roof edges, parapets, or gutters with style and durability. Built to integrate seamlessly into architectural profiles, it provides protection for roofing membranes and helps maintain curb appeal without sacrificing performance. Ideal for smaller roof edges or decorative facades where drainage and appearance both matter.

Key Features

  • Slim, Low Profile Body: Compact design helps maintain architectural aesthetics at roof edges and reduces visual intrusion.

  • Decorative Dome Cover Options: Available with refined cover finishes (such as bronze or nickel bronze) to enhance visual detail and match building character.

  • Membrane Clamping Collar: Ensures the roofing membrane is securely fastened and sealed at the drain location, helping prevent leaks and protect roof edge integrity.

Downloads:

Product Codes: ZRB185-3IP, ZRB185-4IP, ZRB185-3NH, ZRB185-4NH, ZRB185-3IC, ZRB185-4IC, ZRB185-3IG, ZRB185-4IG, ZRB185-3NH-45, ZRB185-4NH-45, ZRB185-3IP-HD, ZRB185-4IP-HD, ZRB185-3NH-HD, ZRB185-4NH-HD, ZRB185-3IC-HD, ZRB185-4IC-HD, ZRB185-3IG-HD, ZRB185-4IG-HD, ZN185-3IP, ZN185-4IP, ZN185-3NH, ZN185-4NH, ZN185-3IC, ZN185-4IC, ZN185-3IG, ZN185-4IG, ZB185-3IP, ZB185-4IP, ZB185-3NH, ZB185-4NH, ZB185-3IC, ZB185-4IC, ZB185-3IG, ZB185-4IG,

Shipping

  • All items ship for free (standard ground, see map)
  • Call: (800) 604-5537 for pricing and shipping questions. Shipping estimates shown on the map pertain to this specific product only.
  • Orders typically ship in 1-3 business days. Transit times displayed in the map are listed in business days, and are approximate. The day that the order is shipped is not counted as a transit day.
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Zurn Z185 Cornice Roof Drain: An Overview

Features, applications, installation guidance, and performance of the Zurn Z185

Roof drainage isn’t always confined to flat rooftops—cornices and parapets also require dependable solutions. The Zurn Z185 Cornice Roof Drain is specifically engineered to manage water runoff from cornices, projecting elements, and decorative building features. With durable construction and efficient performance, the Z185 helps preserve the integrity of architectural details while preventing water-related damage. This guide explores its features, applications, installation tips, and a case study in action.

Zurn Z185 Cornice Roof Drain Schematic
Zurn Z185 Cornice Roof Drain Schematic

What Is the Zurn Z185?

The Z185 is a cornice roof drain designed to collect and channel water from architectural cornices and projecting roof edges. Built with a cast iron body, it features a hinged cast iron grate that allows for high flow while preventing debris blockages. Its design is compact, efficient, and built to handle demanding exterior conditions while protecting decorative roof details.

Key Features & Benefits

  • Cast Iron Body: Heavy-duty construction ensures durability and long service life.
  • Hinged Grate: Provides easy access for cleaning while preventing debris from obstructing flow.
  • Compact Design: Fits into cornices, ledges, and parapet systems without detracting from aesthetics.
  • Reliable Water Management: Safeguards architectural elements from water pooling and damage.
  • Low Maintenance: Hinged grate allows quick inspection and cleaning.
Zurn Brand Logo
Zurn Brand Quality

Applications of the Z185

  • Architectural cornices on historic and modern buildings
  • Parapet systems requiring discreet drainage
  • Decorative roof elements on commercial and institutional buildings
  • Retrofits where preserving aesthetics and managing water is equally important

Installation Considerations

Proper installation of the Z185 requires integration with the cornice or parapet design to ensure seamless water collection. Positioning must align with runoff flow paths, and the drain should be connected securely to downspout or leader systems. The hinged grate should remain accessible for periodic inspection and cleaning.

Zurn Z185 Dimension Schematics
Zurn Z185 Dimension Schematics

Case Study: Historic Building Restoration

Challenge: A century-old courthouse undergoing restoration faced water damage along its ornate cornices. Original drainage elements had deteriorated, causing leaks and structural wear.

Solution: Restoration teams installed Zurn Z185 Cornice Roof Drains in alignment with existing cornice structures. The heavy-duty cast iron construction blended durability with discreet installation. The hinged grate provided easy access for routine maintenance without impacting historic aesthetics.

Outcome: The project successfully preserved the building’s architectural charm while solving chronic water issues. Maintenance crews reported simplified inspections and improved water flow through the cornice system, protecting the courthouse for decades to come.

Conclusion

The Zurn Z185 Cornice Roof Drain is a specialized solution for managing water runoff from decorative roof features. Its durable cast iron body, hinged grate, and compact design make it a trusted choice for both restoration projects and modern builds. For architects, contractors, and building owners looking to balance function and aesthetics, the Z185 offers long-term performance and protection.

Frequently Asked Questions

What makes the Z185 different from standard roof drains?

The Z185 is specifically designed for cornices and parapet systems, with a compact body and hinged grate for easy cleaning.

Is the Z185 durable for exterior applications?

Yes. The cast iron body and corrosion-resistant finish make it ideal for long-term outdoor performance.

Does the Z185 require regular maintenance?

Minimal maintenance is required. The hinged grate allows quick access for cleaning debris, ensuring consistent flow.

Where is the Z185 most commonly used?

It’s often used on historic buildings, commercial properties, and any project with decorative roof elements needing discreet drainage.