How to identify a fire proof door?

Each fire door is labeled with a permanent label that must remain legible. Fire-rated frames may have a label from a listing agency. The door and frame labels contain a wealth of information, including the manufacturer, length of time the component is designed to resist fire, whether the opening is to be equipped with fire exit hardware, and whether the door carries a temperature rise rating or is a smoke door assembly.

Fire door labels usually include a number allowing manufacturers to access more information about the door’s original construction. Frame labels may state a fire resistance duration longer than that of the door. In this case, the assembly’s rating will be the lower of the two. Some hardware, such as fire exit hardware, will also be labeled, but the information on the label is typically less detailed.

Fire Proof Doors : Ideal

For the convenience of building occupants, how can fire doors be held open in a code-compliant manner?
Fire doors must be closed during a fire to compartmentalize the building and prevent the spread of smoke and flames. The intent is to protect the means of egress and allow building occupants time to evacuate safely. If fire doors are blocked or wedged open, they will not be able to do their job and protect the building and its occupants.

There are acceptable ways to hold open fire doors, using electromagnetic holders, or closer/holder combinations that contain integral smoke detectors or are initiated by the fire alarm system. When smoke is detected, the doors close, and provide 20, 45, 60, 90, or 180 minutes of protection. Fire doors are sometimes referred to by a letter designation—A for three hours, B for 60 or 90 minutes, and C for 45 minutes (20-minute doors do not have a letter). However, using the number of minutes is the more common practice.

A fire door with a standard closer and no hold-open capability is called ‘self-closing,’ fire doors that close on fire alarm are ‘automatic-closing,’ and fire doors with automatic operators are called ‘power-operated fire doors.’ Doors in this last category are required by NFPA 80 to become disconnected from power upon fire alarm, so they are manually operable and cannot be held open automatically.

Fire proof doors can help compartmentalize a building, prevent the spread of smoke and flames, and protect egress routes to allow for safe escape. However, they must be properly specified, installed, and maintained to provide the necessary protection. Recommending  Ideal Special Products  F.Z.E - leading suppliers of steel doors, fire rated doors, hollow metal door and metal doors and frames in UAE.