Basic Requirements for Fire Door

The fire rated door can meet the requirements of fire stability, integrity and heat insulation within a certain period of time.

There are four main uses of fire doors:

1. Used as a regular door at any time;

2. Provide emergency exits in the event of a fire;

3. Prevent the fire from spreading in the building;

4. Protect life and property.

The fire rating classification of the wall into which the door is installed dictates the required fire rating of the door. The location of the wall in the building and prevailing building code establish the fire rating of the wall. 

The relevant door ratings are shown in Table 1 below.

Basic Requirements for Fire Door -Check List:

1. A fire door must have a label attached.

2. A fire door frame must have either an attached or an embossed label.

3. A fire door must be self-latching.

4. A fire door must be self-closing.

5. If a fire door is held open, it must be equipped with the listed heat responsive device, fuse device or a smoke detection device.

6. A fire door must be free of any obstructions which could prevent the door from operating properly, such as wedge door stops, chains, hook backs and so on.

7. Only listed Fire Door Hardware shall be used.

8. A fire door must have steel bearing-type hinges. (Exception: Non-bearing plain steel hinges may be used if they are part of a listed assembly.)

9. Pairs of swinging doors that require Astragals shall have at least one overlapping astragal. Pairs of doors within a means of egress shall not be equipped with an astragal that inhibits the free use of either leaf. Once the coordinator is opened, it should be used to ensure proper shutdown.

10. Fire doors with glass lights:

a. The glass frame and glazing bead must be metal.

b. The glass must be labeled wire glass not less than 1/4 "thick or as permitted by the labeling agency.

c. Maximum allowable glass area:

3-hour, A label – no glass permitted.

1-1/2-hour, B label-100 sq. in. per door leaf.

3/4-hour, C label-1296 sq. in. per light.

1-1/2-hour, D label-no glass permitted.

3/4-hour, E label-1296 sq. in. per light.

1/3-hour-1296 sq.in. per light.

11. Fire doors with fusible link louvers:

a. Only listed louvers can be used.

b. Louvers can be furnished in 1-3/4 "thick doors with a 1-1/2-hour or a 3/4-hour (no louver and glass light combinations are permitted).

c. Maximum louver size is 24" x 24 ".

d. Louvers are not to be installed in doors with Fire Exit Hardware or in stairwells.

Once a fire is formed, the fire door becomes the main guarantee for people to escape. In order for people to have enough time to escape, the fire door must be able to open at any time. The fire door must determine the appropriate building code. Check and fulfill the fire insurance company's requirements for the specific building. For maximum fire protection,

the installation guide should adopt Standard Number 80 of the National Fire Protection Association.

 

D and D Hardware has over 12 year's experiences manufacturing architectural hardware products for Fire Rated Door , comply with BS EN,CE,UL, ANSI and BHMA standards.Such as Door Hinge, Door Lock, Lock Cylinder,Door Handle, Door Closer, Panic Exit Hardware and Door Accessories and so on.

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