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UL 10A
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UL 10A 21st Edition, December 10, 2013 UL Standard for Safety Tin-Clad Fire Doors
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Description / Abstract:
These requirements cover the design and construction details of
tin-clad fire doors which when so fabricated have demonstrated in
fire tests conducted in accordance with the Standard for Fire Tests
of Door Assemblies, UL 10B, fire performance properties which
warrant their use as fire doors having a rating of 3, 1-1/2, or 3/4
hour.
The doors covered by these requirements are intended to be mounted with fire door hardware of the following types:
a) Sliding hardware and
b) Swinging hardware.
A tin-clad fire door employing materials and/or having forms of construction differing from those detailed herein are to be examined according to the intent of these requirements and shall be tested for fire performance in accordance with the Standard for Fire Tests of Door Assemblies, UL 10B. If when so tested, it is determined that the fire door complies with the Conditions of Acceptance of this test method it is to be classified as a tin-clad fire door having the applicable fire performance rating of 3, 1-1/2, or 3/4 hour.
Doors complying with these requirements are classified as to temperature rise on the unexposed side to 250°F (139°C) maximum at the end of the first 30 minutes of exposure to fire; or have no classification referencing temperature rise. See Table 2.1.
A door conforming to these specifications consists of a core made up of layers of boards nailed to each other, encased in terne or zinc coated steel in the form of sections jointed together at their edges and nailed through the seams to the core.
Requirements for the location and time rating are contained in codes, such as the International Building Code published by the International Code Council and the Building Construction and Safety Code, NFPA 5000. The method of installation required for fire doors is not included in these codes. Requirements for the details for the installation of tin-clad fire doors, including the requirements for vent holes and glazing are included in the Standard for Fire Doors and Other Opening Protectives, NFPA 80.
These requirements do not cover electrical, mechanical, or other features which relate to the risk of fire or accident beyond the scope of these requirements.
The doors covered by these requirements are intended to be mounted with fire door hardware of the following types:
a) Sliding hardware and
b) Swinging hardware.
A tin-clad fire door employing materials and/or having forms of construction differing from those detailed herein are to be examined according to the intent of these requirements and shall be tested for fire performance in accordance with the Standard for Fire Tests of Door Assemblies, UL 10B. If when so tested, it is determined that the fire door complies with the Conditions of Acceptance of this test method it is to be classified as a tin-clad fire door having the applicable fire performance rating of 3, 1-1/2, or 3/4 hour.
Doors complying with these requirements are classified as to temperature rise on the unexposed side to 250°F (139°C) maximum at the end of the first 30 minutes of exposure to fire; or have no classification referencing temperature rise. See Table 2.1.
A door conforming to these specifications consists of a core made up of layers of boards nailed to each other, encased in terne or zinc coated steel in the form of sections jointed together at their edges and nailed through the seams to the core.
Requirements for the location and time rating are contained in codes, such as the International Building Code published by the International Code Council and the Building Construction and Safety Code, NFPA 5000. The method of installation required for fire doors is not included in these codes. Requirements for the details for the installation of tin-clad fire doors, including the requirements for vent holes and glazing are included in the Standard for Fire Doors and Other Opening Protectives, NFPA 80.
These requirements do not cover electrical, mechanical, or other features which relate to the risk of fire or accident beyond the scope of these requirements.