What is a Fire/Smoke Damper?

Fire and smoke dampers are integral components of commercial HVACHVAC systems. These devices help control the spread of smoke and fire in the event of an emergency, thereby increasing safety for occupants of a building. But what exactly is a fire/smoke damper? How does it work? In this blog post, we’ll answer all your questions about these essential safety features so you can be sure your business is properly protected from fire and smoke-related disasters.

What is a fire/smoke damper?

A fire/smoke damper is a device that is installed in an HVAC system to prevent the spread of fire and smoke. It is usually placed inbetween the supply and return air ducts, or in the case of a double-sided fire/smoke damper, between two wall partitions. Fire/smoke dampers are also sometimes referred to as smoke partitions or smoke barriers.

How do fire/smoke dampers work?

Fire/smoke dampers are an important part of a fire safety system in a commercial building. They are usually installed in the ceilings and walls to provide a barrier to stop the spread of fire and smoke. Fire/smoke dampers are required by code in many jurisdictions in order to obtain a fire safety certificate for a building.

When activated by heat, fusible links or electric shutters, fire/smoke dampers close automatically to prevent the passage of fire and smoke. Some dampers are also equipped with positive pressure relief devices that open the damper blades when the damper is subjected to high positive pressures, such as those that might be created by wind or fans.

Types of fire/smoke dampers

There are two types of fire/smoke dampers: automatic and manual.

Automatic fire/smoke dampers are usually installed in HVAC systems and are activated by heat detectors or smoke detectors. These dampers close when the temperature or smoke reaches a certain level, preventing the spread of fire and smoke.

Manual fire/smoke dampers are usually installed in ductwork that is not part of an HVAC system. They must be opened and closed manually in the event of a fire.

Where are fire/smoke dampers required?

A fire/smoke damper is a device that is installed in an HVAC system to prevent the spread of fire and smoke. These dampers are required by code in certain locations within a building, such as at openings in walls and ceilings that penetrate through fire ratings. Fire/smoke dampers are also required at the junction of horizontal and vertical ductwork, and they must be installed in accordance with the manufacturer’s instructions.

How often should fire/smoke dampers be inspected?

Fire/smoke dampers should be inspected at least once a year, and more often if they are located in an area with a high fire hazard.

Conclusion

Fire/smoke dampers are an essential component in any building’s fire safety system, providing protection against the spread of smoke and flames through ventilation systems. With the right installation and maintenance, these devices can enable buildings to remain safe during a fire emergency. By understanding the various types of dampers available, as well as their benefits and limitations, you will be better equipped to make sure your building is compliant with all applicable fire safety codes.