Fire window

Fire Window: Overview, Technical Requirements, and Installation Guidelines

Fire window are designed to isolate and prevent the spread of fire. They consist of a steel window frame, steel window sashes, and fire-resistant glass. Fire windows are essential for ensuring fire safety in buildings, especially in critical areas such as fire partitions and escape routes.

Fire Resistance Ratings:

• Class A (甲级): Minimum fire resistance of 1.5 hours.
• Class C (丙级): Minimum fire resistance of 0.5 hours.
  According to the latest standards GB16809-2008, these windows must meet specific technical and performance criteria.

1. Fire windowMaterials and Components

• Window Frame: The frame should be made from steel or wood, with sufficient strength to maintain the integrity and stability of the window during a fire.
  • Steel Frames: Can be made from galvanized steel or stainless steel, meeting the requirements of GB12955 (General Technical Conditions for Steel Fire Doors).
  • Wood Frames: Must comply with the standards outlined in GB14101 (General Technical Conditions for Wooden Fire Doors).
• Filling Material: The interior of the frame should be filled with non-combustible materials to enhance fire resistance.
• Fire-Resistant Glass: The glass should be selected based on its fire resistance performance, which must pass fire resistance testing. The glass should have a light transmittance of at least 75% compared to the same thickness of ordinary flat glass.
• Sealing Material: The material used to seal the glass to the frame must be fire-resistant, to prevent the passage of smoke and fire in the event of a fire.
• Hardware: All hardware components should be tested and certified for quality and safety.

2.Fire window Installation Requirements

2.1 Inspection and Acceptance

• Upon receiving the fire windows, the buyer must carefully inspect the quantity, specifications, and grade of the products, ensuring that all components and accessories are complete and meet quality standards.

2.2 Storage

• Fire windows should be stored vertically in a dry, indoor environment. Adequate corrosion protection should be provided. Glass should be placed on surfaces that prevent damage to its edges and surfaces.

2.3 Installation Procedure

• Pre-Installation Inspection: Before installation, the fire window frame and glass should be checked for any warping, deformation, or damage caused by improper handling during storage or transport. Any damage should be repaired before installation.
• Leveling and Vertical Alignment: When installing the fire window, use a level to ensure that the window frame is perfectly aligned. It should be both horizontally and vertically aligned, with consistent height across all sides.
• Frame Connection: The window frame must be securely connected to the building structure. Wood or metal connectors should be used to attach the frame to the wall.
  • Steel Frame Installation: After installing the steel window frame, the gap between the frame and the wall must be filled with cement mortar and cured for at least 24 hours before the window is used.
• Hardware Installation: Ensure that hardware mounting holes are accurately positioned for proper and secure fitting of hardware components.
• Fire Glass Installation: When installing fire-resistant glass, ensure uniform gaps around the edges of the glass. Once positioned, fill the gaps with fire-resistant cotton and seal with edge strips.
• General Guidelines: In addition to the above, all installation work should comply with the applicable construction and acceptance standards, such as Engineering Construction and Acceptance Specifications.

Conclusion

Fire windows are critical components of any fire safety plan, providing protection against the spread of flames and smoke. By following the proper technical specifications and installation procedures, fire windows can significantly enhance the safety and resilience of a building in the event of a fire. It is essential to use high-quality materials, adhere to national standards, and ensure that installation is conducted by skilled professionals.