• DuraVent DuraChimney II 10" Firestop – Essential Chimney Safety Component: Designed for the DuraChimney II factory-built double-wall chimney system, ideal for wood-burning fireplaces, stoves, and solid-fuel venting installations.
• Critical Ceiling and Floor Penetration Protection: Used in ceiling and floor penetrations above the fireplace, providing essential fire safety where the chimney passes through building structures.
• Underside Ceiling Installation Design: Engineered to fit securely on the underside of the ceiling, ensuring proper alignment and compliance with chimney system installation requirements.
• Supports UL-Listed Chimney System Safety: Helps maintain safe clearances and supports compliance with UL 103 listed chimney system standards for residential and commercial installations.
• Roof Penetration Not Required: A firestop is not required when passing through the roof, simplifying installation planning for multi-level chimney runs.
• Improves Fire Safety & Structural Protection: Helps prevent heat transfer to surrounding framing materials, enhancing overall chimney fire safety and building protection.

Specifications