Our folded, ceramic-curtain style damper meets both combustible and non-combustible UL assemblies. Supports two-stage construction: fan housing and damper sleeve during framing, and fan/motor/damper installation after finishes. The damper provides easy access to fan/motor/damper for hassle-free maintenance
Key Features
- The folded, ceramic-curtain style damper meets both combustible and non-combustible UL assemblies
- Allows for versatile, two-stage construction during framing and after finishes
- Easy access to fan, motor and damper for maintenance
- 5-Year Warranty
- UL approved for most Panasonic 10 1/4″ 50-150 CFM fans, fan/lights and fans with motion sensor; please see product submittal for approved model numbers
FlexDamper® Ceiling Radiation Damper
The FlexDamper® is an all-in-one, flexible radiation damper for combustible and non-combustible assemblies. Panasonic’s next generation FlexDamper addresses the change in UL and Warnock-Hersey’s standard testing protocol:
- UL555C, no longer automatically certifies both Combustible (Wood Joist/Wood Truss) and Non-Combustible (Steel Beams/Girders/Trusses) by meeting the 1 – 3 Hour 555C Rating
- UL and Warnock-Hersey (UL/WH) now require a separate Fire Chamber Fire Test to verify the efficacy of the Ventilation Fan/Radiation Damper in a Wood Truss Assembly
- FlexDamper meets UL Combustible Assembly Ratings for “Stick-Built”, low- or mid-rise, Multi-Family or Hotel/Lodging projects, and offers the best option for Architect/Engineer projects. It allows for two-stage project installation to protect fan/motor during drywall/interiors construction phase, and allows easy access or replacement of the fan/motor.
Approved for Combustible & Non-Combustible Assemblies:
Combustible: UL 555C listed for use in a one hour: fire-rated, wood truss floor/ceiling and roof/ceiling designs; UL 555C classification for the following one hour UL Wood Truss Assembly Ratings: L521, L528, L546, L558, L562, L574, L576, L581, L583, L585, M509; P522, P-533, P-538, P-545 and P-548.
