Fire Ratings

Question 1

Clear ceramic, tempered fire-protective glass, 2 or 3 layers of tempered glass with a clear polymer gel between them, and glass block

Question 2

Glass or other glazing material that has been tested as part of a fire-reistance-rated wall assembly according to ASTM E119

Question 3

1/4” th. wired glass in steel frames or other types of glazing that meet the requirements of NFPA 252 or NFPA 257; such glazing must have a 45-minute rating, limited to 25% of the area of the common wall within any room using the glazing

Question 4

The period of time an opening assembly, such as a door or window can confine a fire or maintain its integrity, or both, when tested. Must withstand fire exposure and thermal shock as would an assembly that required a fire-resistance rating, but it need not withstand heat transmission as walls, columns and floors do

Question 5

Protected opening that is in a fire-rated wall, including all components

Answer 5

opening assembly

Question 6

a door assembly that has been tested by an independent laboratory to determine that it is capable of withstanding a measured temperature, without failure, for a set length of time.

Answer 6

Fire-rated door