715.5.4 Wired Glass
Steel window frame assemblies of 0.125-inch (3.2 mm) minimum solid section or of not less than nominal 0.048-inch-thick (1.2 mm) formed sheet steel members fabricated by pressing, mitering, riveting, interlocking or welding and having provision for glazing with 1/4-inch (6.4 mm) wired glass where securely installed in the building construction and glazed with 1/4-inch (6.4 mm) labeled wired glass shall be deemed to meet the requirements for a 3/4-hour fire window assembly. Wired glass panels shall conform to the size limitations set forth in Table 715.5.4.
|OPENING FIRE PROTECTION RATING||MAXIMUM
|11/2-hour doors in exterior walls||0||0||0|
|1 and 11/2 hours||100||33||10|
|20 minutes||Not Limited||Not Limited||Not Limited|
|Fire window assemblies||1,296||54||54|
For SI: 1 inch = 25.4 mm, 1 square inch = 645.2 mm2.