Roof edges and parapet walls are vulnerable to water damage without proper drainage. A scupper drain provides a dedicated outlet for water to pass through parapet walls, protecting both the roof and building envelope. The Zurn Z1717 Scupper Drain is designed to deliver efficient, watertight performance in both new construction and retrofit applications, helping to prevent leaks, staining, and premature wall deterioration.

Zurn Z1717 Scupper Drain

What Is a Scupper Drain?

A scupper drain channels water through a parapet wall, allowing it to flow off the roof safely instead of ponding at the edges. The Zurn Z1717 is built with durability in mind, ensuring reliable performance under harsh weather conditions. By directing water away from the structure, it reduces the risk of leaks and helps preserve the integrity of both the roof and walls.

Key Features & Benefits

• Efficient Drainage: Moves water through parapet walls to reduce pooling and leakage risks.
• Durable Build: Engineered to withstand rooftop exposure and weather extremes.
• Watertight Seal: Provides secure protection at vulnerable roof edges.
• Versatility: Suitable for both new construction and retrofit installations.
• Low Maintenance: Easy to inspect and keep free of debris.

Zurn Brand Quality

Applications

• Parapet wall drainage for flat-roof commercial buildings
• Institutional facilities such as schools and hospitals
• Warehouses and industrial properties
• Both retrofit upgrades and new construction projects

Installation Best Practices

For reliable results, install scupper drains using these best practices:

• Mount flush with the parapet wall for proper flow.
• Seal around the drain body with waterproofing material.
• Ensure roof slope directs water efficiently to the drain opening.
• Inspect regularly and clear debris to maintain flow.

Zurn Z1717 Scupper Drain Schematic

Case Study: Parapet Wall Drainage Solution

Challenge: A retail complex experienced wall staining and water leaks due to poor parapet drainage.

Solution: The facility management team installed Zurn Scupper Drains along the roof edges. Their watertight design and efficient flow redirected stormwater away from vulnerable areas.

Outcome: Water intrusion issues were resolved, maintenance costs dropped, and the building envelope gained added protection from long-term damage.

Conclusion

The Scupper Drain (Zurn Z1717) is a proven choice for roof edge and parapet wall drainage. Its durable design, watertight sealing, and versatile applications make it ideal for both new builds and retrofits. With proper installation and maintenance, it offers long-term reliability and peace of mind.