Glass Bulletproof
A type of safety glass manufactured from special toughened glass, laminated with multiple layers of safety glass using sodium silicate. It provides fire resistance of up to 2 hours without deformation, effectively blocking fire, smoke, and reducing heat transfer to the interior
- Insulation: The ability of the system to limit heat transfer from the fire-exposed side to the non-fire side. The average temperature measured on the fire-resistant surface of the non-fire side must not exceed 140°C, and no single point should exceed 180°C
- Integrity: The ability of the system, when exposed to fire, to remain intact without collapse, holes, gaps, or cracks that would allow flames to pass through to the other side. Due to variations in legal regulations and fire protection requirements, the classification of fire-resistant glass has been standardized into three categories
- Class EI: The highest level of fire protection. Fire-resistant glass in this class must be able to prevent the passage of flames, smoke, and heat for the specified duration
- Class EW: Fire-resistant glass in this class must meet the Integrity requirement while also providing partial protection against heat transfer
- Class E: Fire-resistant glass that prevents the passage of flames and smoke while remaining transparent during a fire. However, it does not provide protection against heat, which may still cause damage during the fire
