Maximum glass light size for a 90 minute (1 1/2 hour) door depends on the type of glass being installed.
Wire glass = 100 square inches is max exposed glass when wire glass is used.
Note - ma...
Maximum glass light sizes for 3 hour fire doors is as follows:
Wire glass - not approved for use in 3 hour fire doors.
Ceramic glass:
UL & ITS/WH allow one (1) light with 100 square inc...
ASTM E-119 is a test standard for walls, partitions and floor or roof systems:
This test standard is also used for ceramic type glasses when used as window wall and/or borrowed light frames.
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There are several door manufacturers that have achieved a 90 minute UL Fire listing as shown.
Von Duprin CVC with Marshfield Wood Door: Von Duprin is pleased to announce that Marshfield has s...
Non fire rated doors can be furnished with a maximum 3" diameter hole for viewer preparations.
Fire rated doors have a 3/4" maximum holes size unless otherwise listed by UL or ITS/WHI. Viewers mus...
Raceway availability: Optional factory installed raceways are available in doors but are not available in frames.
Preparation Info: Steelcraft installs a flexible 1/2" ID steel conduit through the...
Steelcraft doors and/or frames do not contain any asbestos.
Steelcraft did use asbestos in the following products:
Steelcraft S16-Series stile and rail door with flush panel and UL fire door l...
Astragals are required on:
3 hour fire rated pairs:
Double doors - swinging in the same direction
Double Egress - swinging in opposite directions
Fire rated Dutch Doors
Fire rated 1 3/4" t...