Fire rated glass is used in building doors and windows and can help keep flames and smoke from spreading from one room to another. Standard window glass will break when it reaches 250 degrees F. Tempered glass can last to about 500 degrees F. Fire rated ceramic glass can survive heat in excess of 1600 degrees F.

The term “fire-rated glass” refers to the complete set of fire-rated glazing products available in the market. Within that wide category, designers can choose from both “fire-protective” and “fire-resistive” glazing products, depending on their project’s requirements.

Fire Protective

Fire protective means the glazing defends against the spread of flames and smoke for its designated fire rating. Fire-protective glazing typically is available with fire ratings ranging from 20 to 180 minutes, with varying impact safety ratings. Since it does not block the transfer of radiant and conductive heat, it is subject to area and size limitations under the applicable building code.

Fire Resistive

Fire resistive glass provides the same defense against flames and smoke as fire-protective glazing, but adds further protection by blocking the transfer of radiant and conductive heat.