Radiation damper shall be assembled with select ENERGY STAR® rated ventilation fans, fan/lights and fans with motion/condensation sensors. Damper shall be UL and cUL listed for wood truss assemblies and meet UL 555C for use in 1 hour fire-rated floor/ceiling or roof/ ceiling assemblies as listed below. Damper shall exceed National Fire Protection Agency NFPA-90A
- Material: Steel
- Type: Radiation Damper