Bear Glass

Fire Rated Glazing

There are many different types of fire rated glazing, using many different technologies to protect against the effects of fire. However all fire rated glazing falls into three basic categories.
Fire Protective, Fire Resistive, and Heat Reflective glazing.

FIRE PROTECTIVE GLAZING
used for applications UP TO 45 MINUTES

Normal glass will break under heat stress during a fire, allowing dangerous smoke to travel to surrounding areas. Fire protective glazing contains dangerous smoke and flame by maintaining its integrity during a fire. If the application is more than 25% of the wall area, fire protective glazing cannot be used. Fire protective glazing is allowed in applications over 45 minutes for doors only, and is limited to 100 sq.in. in this case.

FIRE RESISTIVE GLAZING
used for applications OVER 45 MINUTES

Fire resistive glazing contains smoke and flame during a fire as well, but also blocks radiant heat. Radiant heat can easily ignite materials on the non fire side of normal glass, and cause serious injury to people exiting a building. Only fire resistive glazing protects people and property from the effects of radiant heat, and can be thought of having the protection of a transparent wall.

HEAT REFLECTIVE
used for applications UP TO 60 MINUTES

Most buildings in fire prone areas use fire resistant materials on the roof and walls, but overlook the most important danger - radiant heat. Heat radiating from the fire through conventional windows will set curtains and other flammable objects on fire inside the building or home within minutes.
Heat reflective glazing is a specialty tempered glass that reflects radiant heat like a mirror, protecting people and property on the non fire side.