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Answer
What is the maximum glass light size on a 3 hour (180 minute) fire rated door?
Resolution:
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...:
What is the maximum glass light size on a 90 min (1 1/2 hour) fire rated door?
Resolution:
Standard listed wire glass: one (1) light with 100 in2 per door leaf max.Firelite or other appropriately listed glass:• FM maintains one (1) light with 100 in2 per door leaf max.• UL &...:
Is GrainTech available fire rated?
Resolution:
GrainTech® is available with very broad fire ratings.The option of GrainTech® does not affect the fire rating of the door.Fire ratings depend on the door series, hardware and applications.For all f...:
What is the largest diameter hole that Steelcraft can provide for viewer preps?
Resolution:
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 must ...:
What is the maximum door size for ITS/WHI fire rated doors?
Resolution:
ITS/WHI is "Warnoch Hersey". ITS/WHI is the formal designation for Intertek Testing Services / Warnock Hersey. ITS/WHI is an independent agency with testing, listing, in-plant inspection, and label...:
What is the maximum door size for UL fire rated doors?
Resolution:
Maximum UL Fire Rated door sizes are as follows:A-Series:4' 0" X 8' 0" single door8' 0" X 8' 0” double door or pairsB-Series4' 0" X 10' 0" single door8' 0" X 10' 0” double door or pairsCE-Series:3'...:
Can protective plates be attached to fire rated door?
Resolution:
Yes, Steelcraft doors we are approved up to 48" in height or not to exceed a total 2304 square inches per face. Protective plates are usually flat sheets of metal or plastic applied to one or both...: