The Steel Door Institute, for instance, has five fire door ratings for commercial steel fire doors:

• 20-minute fire ratings
• 45-minute fire ratings
• One-hour fire ratings
• 1.5-hour fire ratings
• Three-hour fire ratings

The global safety certification company UL gives fire ratings from a half hour to four hours.

The Benefits of Fire-Rated Doors

Our commercial roll-up fire doors and shutters offer benefits for facilities of any size, including:

• Security: Fire doors are made from durable steel, protecting businesses 24/7.
• Insulated: Insulated fire doors provide climate control, reduced energy usage and sound-deadening qualities.
• Code enforcement:  Our rolling fire doors are UL listed for fire protection ratings of 3/4, 1 1/2, two and four hours.
• Protection: Our advanced fire door operating systems automatically activate thermally or electronically.

Our advanced  reacts instantly to an alarm signal, activating the door closing sequence which stops fire and smoke migration – a performance that thermally activated systems simply cannot match.

In addition, Alarm Gard does not require human interaction after an alarm is cleared – ideal for parking structures that may not be staffed full time.  AlarmGard resets, and motor-operated units can even reopen your fire doors automatically, eliminating reset downtime by 100%.

Installing Fire-Rated Doors or Shutters

If the rest of a building is constructed of fireproof or fire-retardant materials, maintain continuous protection with a fire-rated exterior door. Inside the building, fire doors offer valuable shields, allowing occupants more time to escape safely in the event of a fire. Installing fire doors anywhere flames can spread will improve safety while meeting applicable building codes. Consider the following locations:

• Exits: A building’s exterior offers a strong defense from approaching flames and flames spreading from within. Maintain the wall of protection with fire-rated steel doors.
• Elevators: During fires, elevators become chimneys, feeding the flames. Elevator smoke shields prevent smoke and other gases from traveling through the shaft, minimizing the spread of fire and smoke and reducing building damage.
• Equipment: Equipment malfunctions can create flames, which can spread to adjoining areas. Placing rolling fire doors between maintenance areas and the rest of a building increases fire safety.
• Shutters: Commercial counters can be a weak point, but not with the proper closure and countertops. We offer fire-rated counter shutters with fire-rated countertops in a range of finishes for added security and safety.