Effective roof drainage is a cornerstone of protecting buildings against water damage. The Zurn ZF110-R Roof Box is engineered for primary drainage applications, offering exceptional durability, secure integration, and reliable water management for commercial, institutional, and industrial roofs. Built to perform under demanding conditions, this drain combines modern materials with user-friendly installation features. In this guide, we’ll walk through the ZF110-R’s features, applications, installation tips, and provide a real-world case study.

Zurn ZF110-R Installation Schematic

What Is the Zurn ZF110-R?

The ZF110-R is a HDPE green roof box for roof drain applications, designed to integrate seamlessly into modern roof assemblies. Constructed with a corrosion-resistant body and engineered components, it ensures consistent stormwater removal, protecting structures from pooling and leaks. The ZF110-R includes a secured flashing clamp, sump receiver, and strainer dome to balance water intake with debris resistance.

Key Features & Benefits

• Durable Construction: Made with corrosion-resistant materials for long service life.
• Flashing Clamp: Provides a watertight seal between the roof membrane and drain body.
• Dome Strainer: Maximizes water intake while preventing debris from clogging the system.
• Sump Receiver: Improves flow capacity and stability within the roof assembly.
• Versatile Applications: Ideal for flat or low-slope roofs in commercial and institutional settings.

Zurn Brand Quality

Applications of the ZF110-R

• Commercial buildings with flat or low-slope roofs
• Institutional facilities including hospitals, schools, and government complexes
• Industrial buildings requiring robust drainage systems
• Retrofit projects upgrading older roof drainage infrastructure

Installation Considerations

For optimal performance, the ZF110-R should be installed at low points of the roof to collect runoff efficiently. The flashing clamp must be securely tightened to ensure watertight sealing with the roof membrane. Dome strainers should be positioned to remain accessible for routine inspection and cleaning, ensuring uninterrupted drainage performance over time.

Zurn ZF110-R Schematic

Case Study: Commercial Warehouse Application

Challenge: A regional distribution warehouse experienced water pooling during storms due to aging drainage systems. The pooling led to roof membrane stress and increased maintenance costs.

Solution: The facility replaced outdated drains with Zurn Roof drains and Zurn ZF110-R Roof Drain Boxes. The sump receiver and flashing clamp provided secure integration, while the dome strainers reduced clogging risks from debris.

Outcome: After installation, the roof drainage improved dramatically, eliminating water pooling issues. The warehouse saw a significant drop in maintenance calls, and roof performance improved across all storm events.

Conclusion

The Zurn ZF110-R Primary Roof Drain box and Zurn roof drains offer a robust and efficient solution for managing stormwater on flat and low-slope roofs. With its durable construction, reliable sealing system, and strainer dome, it ensures consistent performance, reduced maintenance, and long-term building protection.