2012 ibc clarifies that if a vision panel in a 60 or 90 minute door is over the size limit of 100 sq inches the fire rated glass must be fire resistive.
Fire door vision panel sizes.
The 2012 ibc model building code contains size limits for vision panels in a 60 or 90 minute door.
This will leave you with max glass vision panel size of 1559 x 926.
This confusion stems from a conflict between nfpa 80 size limits and the size limits prescribed by the ibc and the fact that the listing agencies have tested and listed fire protective glazing in sizes not permitted by the ibc.
Size limits for vision panels in 60 or 90 minute doors.
Nfpa 80 standard for fire doors and other opening protectives regulates the size of the glazing allowed in these applications in table 4 4 5.
Glass sizes and core regulations when working with fd30 and 44m doors.
Users are frequently confused about the door vision panel sizes permitted in 60 and 90 minute fire doors under the ibc.
Superb fire doors with vision panels in a large range of sizes and styles that aren t just utilitarian just quality doors for a range of situations and purposes.
For functional and safety purposes many fire doors will need to have glazing in the form of vision panels.
There are many types of glass and glazing available for vision panels depending on the type of protection you require such as fire security safety thermal properties acoustic or a combination of these purposes.
The tall narrow vision panels and combination narrow vision sets meet these requirements.
Regulations for maximum vision panel sizing on fire doors.
Size limits for vision panels.