Fire doors must only be fitted with door hardware fire rated in accordance with as1905 1 fire door locks must be self latching and are not permitted to have a hold open feature.
Fire door opening force.
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I did a post on opening force for accessibility a while back but it s important to note that fire rated doors are not required to open with 5 pounds of force.
A 1 1 see annex k for general information about fire doors.
While fire doors are not required to open with 5 pounds of force the maximum opening force for all egress doors including fire doors and exterior doors is addressed in the international building code.
1 panic hardware shall cause the door latch to release when a force not exceeding 15 pounds is applied to the releasing device in the direction of exit traffic.
It is an offence to prop open or otherwise interfere with the automatic closing action of a fire door.
Typical maximum opening force for exterior doors ranges from 8 5 to 10 lbs.
These forces do not apply to the force required to retract latch bolts or disengage other devices that hold the door in a closed position.
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Opening force for fire doors part 1 i got an email today about a fire rated door that would not reliably close with the closer adjusted to provide 5 pounds of opening force.
Opening force for exterior doors is not specified in the ada standards but exterior doors that need to be accessible should have the minimum force possible.
1 1 1 with the exception of fabric fire safety curtain assemblies this standard addresses assemblies that have.