The DuraVent DuraChimney II 16" Chase Top Flashing is a premium factory-built chimney system component designed as a durable alternative to traditional masonry chimney flashing. Engineered for use with the DuraChimney II double-wall chimney system, this chase top flashing provides a secure and weather-resistant termination for chimney chase assemblies. Its lightweight, unitized design eliminates field assembly of pipe sections, allowing for faster and more efficient installation in wood-burning fireplaces, stoves, and solid-fuel venting systems.

Built for performance and safety, the DuraChimney II chase top flashing features a double-wall, air-cooled design that maintains cooler exterior temperatures while promoting a strong internal draft for optimal venting efficiency. The system accommodates thermal expansion both radially and lengthwise under high heat conditions, ensuring long-term durability and stability. UL 103 listed, it is tested for continuous operation at 1000°F, one hour at 1400°F, and ten minutes at 1700°F, delivering reliable, code-compliant chimney protection and weather sealing performance.

Features

• DuraVent DuraChimney II 16" Chase Top Flashing – Premium Chimney Termination Component: Designed for the DuraChimney II factory-built double-wall chimney system, providing a clean, professional, and weather-resistant chase top finish.
• Encloses Chimney Chase for Maximum Protection: Fully encloses the top of the chimney chase, helping protect the chimney system from weather exposure, debris, and external damage.
• Integrated Ventilation Air Passage Design: Engineered to provide a ventilation air passage to the chase, supporting proper airflow and maintaining efficient chimney system performance.
• Includes Spacer Clips for Easy Installation: Comes with built-in spacer clips, ensuring proper alignment, secure fitment, and simplified installation.
• Ideal for Factory-Built Chimney Systems: Compatible with DuraChimney II double-wall chimney installations, commonly used for wood stoves, fireplaces, and solid-fuel venting applications.
• Enhances Chimney Safety & Performance: Helps maintain proper chase ventilation while supporting long-term durability and code-compliant chimney construction.

Specifications