See photos. We have an area that we are planning on having sensitive protected material and the doors have glass in them and am being asked if the windows may be covered up or the doors replaced with solid doors.
You can replace them with solid doors.
Check the hourly rating on the UL label and replace with same hourly rating or higher.
Without knowing the function of the wall the fire doors are located in, I could only say the vision panel s are there to preventing injury to someone approaching an out-swinging door with no vision panel to prevent the collision. Doors into exits normally have vision panels.
Where doors are subject to two-way traffic, or where their opening can interfere with occupant traffic, an appropriately located vision panel can reduce the chance of accidents.
To Milton Werner, this is the general opinion here, but is there are specific code specifying when a door must be equipped with a window and if so, what size of window?
If NFPA 101 was adopted, check subsection __.2.2.5 of the occupancy chapters. You will see nothing under industrial occupancies.
The door could be signed if the vision beyond a closed door is obscured. The first broken nose will tell the extent of the facilities negligence by not providing a vision panel to view what's on the other side before opening it. A risk management issue for industrial occupancies.
Thanks Milt, would that information requiring a vision lite in a door be part of NFPA 101? If not where would I find the reference?
Have A Ring’s End Day
Tony Calistro, CDT CGP
Ring’s End, Inc.
149 Danbury Road
Wilton, CT 06897
T: 203-814-3024 Ext 2301
In the 2015 NFPA 101 here is where I would requirements to provide a vision panel in a door.
The door with the smaller vision light appears not to be a fire rated door because it does not have a positive latch. (fire doors need to be self closing and seff latching. If the current door has a fire label the push & pull needs to be replaced with a latching device, ( lock, passage set or FIRE rated exit device) Assuming it is in fact not a fire door, the light can be covered up or replace the glass with a solid panel.
The door with the larger vision light can not be field modified. It would be least expensive to replace the door with a flush door. If security is the issue you could also replace the vision lite with School Guard Glass securty glazing.
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