Ceiling Radiation (Fire) Dampers
Ceiling Radiation dampers, also known as "Fire" dampers, are designed and tested to limit the radiant heat transfer through an air inlet/outlet opening in the ceiling membrane of a fire resistance rated floor/ceiling or roof/ceiling assembly.
United Enertech’s ceiling dampers are engineered to provide life safety and airflow control in fire-rated ceiling assemblies. Whether you’re working with exhaust ductwork, air distribution systems, or mechanical plenum returns, our UL-classified ceiling radiation dampers are tested to meet rigorous performance and fire resistance standards.
With multiple models designed to support horizontal installations, United Enertech offers reliable, code-compliant solutions to meet the needs of commercial, institutional, and multi-family projects.
What Is a Ceiling Radiation Damper?
A ceiling radiation damper is a device installed where ductwork penetrates a fire-rated roof/ceiling or floor/ceiling assembly. It is designed to automatically close when exposed to heat, preventing the spread of fire and radiant heat through duct openings.
If you’ve asked “what is a radiation damper” or more specifically, “what is a ceiling radiation damper,” the answer is simple: it’s a critical life-safety component in any fire-rated HVAC system, required by building codes to maintain the integrity of fire-rated assemblies.
Our Ceiling Damper Solutions
United Enertech offers a variety of radiation dampers and accessories for different duct configurations and ceiling types:
Ceiling Dampers for Exhaust Fan Applications
For exhaust systems, United Enertech provides radiation dampers for exhaust fans, which integrate seamlessly into bathroom fan and kitchen exhaust systems, ensuring fire-rated protection without sacrificing airflow performance.
Butterfly-Style and Curtain-Style Blade Configurations
Our dampers come in multiple configurations, including butterfly-style and curtain-style blade designs. This allows engineers and contractors to select the appropriate style based on space constraints, duct dimensions, and pressure drop requirements.
Multi-Size Options and Ceiling Register Compatibility
United Enertech ceiling dampers are compatible with a wide range of ceiling diffusers and grilles. Standard and custom sizes are available to meet specific plenum depths and register dimensions, simplifying installation across different ceiling types.
Key Features and Benefits
- UL Classified to UL 555C for use in fire-rated floor/ceiling and roof/ceiling assemblies
- Multiple mounting options for joist-mounted, suspended, and lay-in ceiling installations
- Models available with spring-loaded mechanisms for automatic closure under heat
- Galvanized steel construction with corrosion-resistant coatings for long-term durability
- Low pressure drop designs that maintain HVAC system performance
Applications for Ceiling Radiation Dampers
Our ceiling damper solutions are ideal for use in:
- Multi-family residential buildings
- Hotels and hospitality properties
- Commercial offices and retail centers
- Hospitals, schools, and government facilities
- Bathrooms, kitchens, and mechanical rooms with exhaust ductwork
Whether you’re specifying a radiation damper for an exhaust fan or behind a ceiling register for a high-performance HVAC system, United Enertech has the solution you need to stay compliant and protected.
Choose United Enertech for Tested and Trusted Ceiling Dampers
When fire-rated ceiling protection is essential, trust United Enertech ceiling dampers to meet the challenge. Our products are designed to simplify installation, enhance safety, and provide lasting performance in a wide range of ceiling and HVAC configurations.
Contact us today for specifications, submittals, or assistance in selecting the right ceiling damper for your project.