An integral part of a fire-rated door assembly, the fire-rated door frame works with the fire-rated glass, door, hardware and component parts to protect against the spread of fire and provide a pathway for safe egress. In addition to the fire-rated door component, the fire-rated frame must have a permanent label that remains legible. It states critical information about its original construction, from its manufacturer and fire rating to whether it carries a temperature-rise rating.
In addition to the fire-rated door frame, compatible fire-rated frames surround any transoms and sidelites included in the door assembly. Both fire-protective and resistive-rated door frames are available. They can support full-lite doors and are engineered to perform as single and double leaf systems.
When it comes to fire-rated door frame options, many in the industry are familiar with traditional hollow-metal steel (HMS) fire-rated doors and frames. However, there are now new alternatives that can achieve the same level of defense while more closely matching the look and shape of aluminum. For example, products using inherently heat-resistant framing materials like carbon steel do not require thermal barriers within their core to achieve the necessary fire defense. Their thin, extruded profiles and crisp edges make it possible for design teams to closely match the aesthetic and technical aspects of traditional aluminum frames in door applications requiring stringent fire protection.
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