All mounting screws or bolts must be made of.
Drilling holes in fire rated doors.
This practice is acceptable as long as the hole does not exceed a diameter of one inch except for cylinder holes in accordance with nfpa 80 1 3 4.
However there is a fire door caulk that has been successfully tested and listed for that purpose that can be used with ahj approval.
With regard to filling holes in fire door assemblies nfpa 80 2013 states.
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.
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.
These requirements apply to all fire rated doors frames and windows.
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.
Fire door caulk from fire door solutions is listed by intertek under the warnock hersey mark.
Fire rated door and frame.
If you ever remove hardware or plates from fire rated doors the holes left behind technically violate nfpa standards.
Nfpa80 2016 4 1 3 1 thru 4 1 3 2 5.
The 2013 edition of nfpa 80.
Double egress 3 step profile.
Is a fire door with two 54mm holes compliant.
The standard lists what shall be performed in the field and any item not specifically enumerated in the standard is not allowed.
Installers are permitted to drill holes in fire rated doors.
It must be replaced.
3 16 holes 5 from end 12 o c.
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.
If a fire door is damaged to expose friable asbestos material the material and door will.
1 1 1 with the exception of fabric fire safety curtain assemblies this standard addresses assemblies that have.
Note that the modifications may be done only to install approved fire labeled hardware.
It has been tested per the requirements of nfpa 252.
1 install steel fasteners that completely fill the holes.
The integrity of the fire door has been compromised.
Fire doors and asbestos the use of asbestos in fire doors was outlawed in 1981 however asbestos was still being used up until 1983.
A maximum of undercut on rated wood and composite doors is allowed.
Replacing a fire door is a costly endeavor especially when there are only small holes located in the door.
Fortunately there are two methods to seal small holes caused by the removal of hardware.
A 1 1 see annex k for general information about fire doors.
1 2 steel aluminum or wood plant on.