Here are some things you can do to a fire listed door in the field.
Drilling holes in fire rated doors.
However there is a fire door caulk that has been successfully tested and listed for that purpose that can be used with ahj approval.
Replacing a fire door is a costly endeavor especially when there are only small holes located in the door.
It has been tested per the requirements of nfpa 252.
Note that the modifications may be done only to install approved fire labeled hardware.
A maximum of undercut on rated wood and composite doors is allowed.
The 2013 edition of nfpa 80.
You can drill up to a one inch hole in the surface of the door for surface applied hardware such as a listed peephole or lock cylinder.
It must be replaced.
Fire rated door and frame.
A filler has been successfully tested for use on wood fire doors and can be used to fill holes a maximum of 3 4 in diameter on a wood door rated for up to 90 minutes.
If a fire door is damaged to expose friable asbestos material the material and door will.
These requirements apply to all fire rated doors frames and windows.
Fortunately there are two methods to seal small holes caused by the removal of hardware.
The integrity of the fire door has been compromised.
If you ever remove hardware or plates from fire rated doors the holes left behind technically violate nfpa standards.
Fire door caulk from fire door solutions is listed by intertek under the warnock hersey mark.
1 install steel fasteners that completely fill the holes.
1 2 steel aluminum or wood plant on.
A change was made to the 2016 edition of nfpa 80 clarifying that materials listed for filling holes in fire doors are acceptable when installed per the manufacturer s procedures.
Nfpa80 2016 4 1 3 1 thru 4 1 3 2 5.
This standard regulates the installation and maintenance of assemblies and devices used to protect openings in walls floors and ceilings against the spread of fire and smoke within into or out of buildings.
3 16 holes 5 from end 12 o c.
All mounting screws or bolts must be made of.
5 5 7 when holes are left in a door or frame due to changes or removal of hardware or plant ons the holes shall be repaired by the following methods.
1 1 1 with the exception of fabric fire safety curtain assemblies this standard addresses assemblies that have.
Drilling raceways for wires on the job site when permitted by the laboratory with which the door is listed must also be performed in accordance with the door manufacturer s listing.
A 1 1 see annex k for general information about fire doors.
Installers are permitted to drill holes in fire rated doors.
Double egress 3 step profile.
Is a fire door with two 54mm holes compliant.
With regard to filling holes in fire door assemblies nfpa 80 2013 states.