Evaluation of Glass Composite Material as Next-Generation Fire Doors

Statistics show that during fire incidents, the vision panels in fire doors often lose transparency when exposed to flames. This limits firefighters’ capacity to evaluate conditions within enclosed spaces, heightening dangers like backdrafts and related threats. If the glass melts or breaks, the situation worsens—especially when flammable materials are stored on the opposite side. Broken glass fragments can also endanger occupants and trigger panic. Since different types of glass are used in fire-door vision panels, each must be tested for fire resistance to ensure suitability for various occupancies and safety conditions.