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Steel non-insulated fire-resistant windows are primarily designed for essential needs in overseas industrial and general buildings, making them highly targeted. Core application scenarios include various industrial park factories, large warehouses, equipment room exterior walls, pipe shaft seals, and stairwell skylights. These locations generally only require fire separation and prevention of fire spread, without the need for thermal insulation. Using steel non-insulated fire-resistant windows meets fire safety compliance requirements while significantly controlling project costs, avoiding unnecessary expenses due to over-performance.
Steel non-insulated fire-resistant windows are available in two structures: fixed and operable, to suit different opening needs. Fixed windows have no moving hardware, offer excellent overall sealing, and require virtually no maintenance, making them the preferred choice for most industrial exterior wall openings. Operable windows, equipped with specialized fire-resistant hinges and locks, support daily ventilation and future maintenance, balancing practicality and fire safety performance, and are suitable for equipment area openings that require periodic opening and closing. Both models are standardized export configurations, with no falsely advertised performance; parameters are verifiable.
Construction and Installation Requirements
Overall Fixing
The window frame must be integral with the building, securely connected to the wall using wooden or iron fittings.
Grouting and Curing
After installation, cement mortar must be poured between the window frame and the wall, and cured for at least 24 hours before normal use.
Gap Sealing
When installing fire-resistant glass, the gaps around the perimeter must be even. After positioning, the gaps on all four sides must be filled and leveled with fire-resistant cotton, then the edge sealing strip must be sealed to ensure smoke and fire isolation in case of fire.
Fire-Resistant Glass Characteristics
Mono-layer Cesium Potassium Fire-Resistant Glass
6/8/10/12 mm mono-layer high-strength cesium potassium, or "Mono-layer + insulated/triple-glazed double-cavity" forming an energy-saving exterior window system; no grouting layer.
Good Weather Resistance
Unlike composite grouting glass, it does not bubble, whiten, or discolor due to UV aging, making it suitable for long-term exposure to exterior walls.
High Light Transmittance
Optical quality close to ordinary float glass, with a light transmittance typically ≥80%–85%.
Thermal/Energy-Saving
Can be made into insulated fire-resistant glass, meeting the energy-saving heat transfer coefficient K-value, and suitable for the energy-saving requirements of residential buildings.
Because the amount of combustible material on the exterior wall is usually small, as long as the window remains intact and unbroken under flames or high temperatures, the possibility of external flames igniting indoor items is extremely small. Therefore, Class C non-insulated fire-resistant windows are widely used in the following scenarios:
Building exterior wall partitions: Used for lighting and ventilation spaces when the fire separation distance of the building's exterior walls is insufficient, preventing the spread of flames from the outside to the inside.
Equipment room lighting windows: Fixed lighting windows for various equipment rooms.
Large curtain wall structures: Recommended for use when the exterior wall is a breathing curtain wall structure or has large billboards.
Steel non-insulated fire-resistant windows are a cost-effective and essential product for fire protection in industrial buildings. It avoids blindly piling on unnecessary insulation features, precisely adhering to the fire safety standards of general industrial buildings. With its robust steel structure, stable fire and smoke insulation performance, and extremely low maintenance costs, it is suitable for large-scale industrial and foreign trade projects worldwide. For overseas engineering companies seeking compliance, stability, and high cost-effectiveness, this window type is a reliable and practical preferred solution among basic fire-resistant partitions.
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