Proper stormwater control is critical for protecting roofing systems on large buildings. The Zurn Z100F Roof Drain is engineered for efficient water removal on flat and low-slope roofs, helping to minimize ponding and extend roof service life. With a durable construction and advanced hydraulic design, this drain is a trusted solution for commercial, industrial, and institutional facilities. This blog highlights its features, applications, installation practices, and a case study showing its proven results.

Zurn Z100F Roof Drain

What Is a Roof Drain?

A roof drain is a system designed to capture and channel water away from flat or low-slope rooftops. The Zurn Z100F model offers high-performance flow rates, watertight sealing with roof membranes, and a dome strainer to keep debris from clogging the system. This ensures reliable performance during heavy storms and helps protect roof assemblies from water-related stress.

Key Features & Benefits

• Efficient Flow Capacity: Advanced hydraulic design reduces ponding by moving stormwater quickly.
• Dome Strainer: Keeps debris out of the system to maintain consistent drainage performance.
• Watertight Seal: Flashing clamp system secures roofing membranes against leaks.
• Engineered Reliability: Tested design built for demanding commercial applications.
• Durable Build: Made from corrosion-resistant materials to withstand long-term exposure.

Zurn Roof Drain Dome Strainer

Applications of Roof Drains

• Commercial buildings with large flat roofs
• Industrial sites requiring high-capacity stormwater systems
• Institutional facilities such as hospitals, schools, and universities
• Warehouses, retail centers, and distribution facilities

Installation Best Practices

For optimal performance, roof drains like the Z100F should be installed using the following steps:

• Locate drains at roof low points for maximum water capture.
• Secure the flashing clamp tightly for a watertight membrane seal.
• Ensure outlet piping is correctly sized for anticipated stormwater loads.
• Clean dome strainers regularly to prevent clogging.
• Conduct flow testing after installation to confirm drainage capacity.

Roof Drain Installation

Case Study: University Campus Upgrade

Challenge: A university campus with several large flat-roof buildings experienced recurring ponding and water damage risk during storms. Existing roof drains lacked the necessary capacity.

Solution: The facilities team installed Zurn Roof Drains across the campus. With higher flow performance, watertight sealing, and durable strainers, the new system provided dependable water management.

Outcome: Ponding was eliminated, roof membranes lasted longer, and maintenance costs decreased significantly. The campus now benefits from improved drainage across all major buildings.

Conclusion

A Roof Drain like the Zurn Z100F is essential for large flat or low-slope roof systems. With advanced flow engineering, secure sealing, and robust durability, it provides reliable stormwater management for commercial, industrial, and institutional facilities. When properly installed and maintained, it ensures long-lasting protection and peace of mind.