GS321 Glazing
Evaluated to the following:
Products listed in this category have been evaluated for use in positive pressure fire door assemblies for specific types of doors and with specific glazing systems. Refer to the individual listings for limitations and requirements.
Note: Glass and glazing material used in these assemblies do not require a positive pressure marking but must be marked as fire rated.
Listed maximum sizes of lights are based on sizes tested and may exceed local code requirements. All assemblies are identified by a label or marking bearing the Warnock Hersey Certification Mark. See Positive Pressure Section Header for more information.
Maximum Area: 1000 square inches
Glazing Type(s):
20 Minute without hose:
Any listed glazing up to the maximum size of the glazing or the door cutout, whichever is smaller.
20 Minute with hose (requires graphite based intumescent):
Pyrostop, Firelite, and Pilkington wired glass, 28-3/4" wide x 35-1/2" high with a maximum area of 1000 square inches (maximum size determined by the smallest width and height of the glazing or glazing kit, whichever is smaller).
