Fire door

Starting September 2016, a common CE marking procedure was available abolishing trade barriers within the European Union for these types of products.

[citation needed] In the UK the British Woodworking Federation outline the difference between a 'Fire Doorset' and a 'Fire Door Assembly'.

Together, these components form an assembly, typically called a "doorset" which holds a numerical rating, quantified in minutes or hours of resistance to a test fire.

All of the components of the fire door assembly must bear a listing agencies label (with the exception of ball-bearing hinges which meet the basic build requirements of ANSI 156.2 and NFPA 80) to ensure the components have been tested to meet the fire rating requirements.

Fire-resistive windows must remain intact under fire conditions and hose stream impact resistance, and can include: Wired glass typically withstands the fire, whereas the sodium silicate liquid also acts to insulate heat transfer, due to the endothermic action of this chemical.

For example, in Australia, the National Construction Code dictates that all fire doors must be tested to certain specifications in order to meet resistance approvals and certification.

Sometimes fire doors have apparently very large gaps at the foot of them, an inch or two even, allowing air movement, such as in dormitory facilities.

Some doors are designed to stay open under normal circumstances, and close automatically in the event of a fire.

Rated fire doors are tested to withstand an ASTM E119 standard time-temperature curve for a specified period.

For example, fitting the wrong kind of glazing may severely reduce the door's fire resistance period.

[9] In the United States, the NFPA requires annual inspections of fire-resistance rated door and frame assemblies.

[citation needed] The final say on the acceptance of any inspection requires the approval of the AHJ (Authority Having Jurisdiction).