Fire door deadlock9/7/2023 ![]() A typical minimum latch throw is between 1/2-inch and 3/4-inch, depending on the listings. However, the minimum latch throw is stated in the door manufacturer’s listings, and must be included on the fire door label. ![]() Latch Throw – Recent editions of NFPA 80 no longer state the required latch throw – the distance that the latch must project from the door edge. There are quite a few considerations with regard to fire-door latching, so here’s a quick run-down with links to additional information if you need it: Each fire door must be equipped with an active latchbolt to keep the door latched under pressure created by a fire, and most doors in a means of egress are required to unlatch with one releasing motion. The information provided in this article is general in nature and should not be taken as specific advice on this subject for every application.In order for a fire door assembly to perform as designed and tested, it’s critical for the door to be closed and latched if/when a fire occurs. The extra lock installed on the fire door must be an approved lock for the type of fire door it is attached to, and tested to AS 4145.2-2008 ‘Locksets and hardware for doors and windows’.Ī deadlock installed through the door that is not part of a tested system in accordance AS1905.1 – ‘Components for the protection of openings in fire resistant walls’ will render the door defective in accordance with the maintenance and testing standard AS1851-2012 Part 12. You can have two locking devices installed on fire door to a residential apartment. The extra fire door locking device must be surface mounted and/or part of tested system installed at the time of manufacturing the door. ![]() In accordance with NCC/BCA Volume 1 Part D2.21 - Operation of latch D2.21 the normal egress requirements do not apply to a door serving only, or is within a sole-occupancy unit in a Class 2 building or a Class 4 part of a building. ![]() In accordance with the inspection routines prescribed by AS1851-2012 - Section 12 (12.4.3.1) the inspection and testing routine can be a yearly inspection for Class 2 residential apartment occupancy units. This routine may be implemented instead of a 6 monthly inspection as is the case with fire doors in other parts of the building. between occupied areas and car parks or between stairways and escape corridors and for most high rise residential apartments. Over a prescribed time in accordance with AS1905. Fire rated doors are typically used e.g. preventing fire from spreading through an entire building. Fire rated doors may be solid-core wooden doors, sheathed in metal and swinging hinged in the case of residential apartments. Fire rated doors are rated to provide prescribed Fire Resistance Level (FRL): Fire Rated Entry Doors DefinitionĪ fire rated to door is designed to confine fire to one part of a building i.e. The actual doorset is only a part of the Exit from a building.
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