PVC Windows and Doors

Hebei Shengqiang Door Industry Co., Ltd. is located in the Renqiu High-Tech Industrial Park in Hebei, renowned as the "Pearl of North China," situated along the key transportation artery of the Beijing-Tianjin-Hebei region. It is a comprehensive entity that integrates the production, sales, and installation of various fire-resistant roller shutters, fire doors, security doors, and industrial doors. The company has a training institution for cultivation, manufacturing, installation, and sales year-round, making it a service-oriented company with strong cohesion and combativeness. Equipped with advanced facilities, the company boasts multiple production lines for fire doors, security doors, and roller shutter processing equipment. Quality is a top priority.

Fire-resistant windows refer to windows, including their frames, that can meet the requirements for fire resistance stability and integrity within a certain period. When there is insufficient fire separation between the exterior walls of two buildings or between spaces separated by fire partitions, and when natural lighting and ventilation are needed, fire-resistant windows should be used.

Fireproof Window Categories:
Fixed Fire Window: A fire window without operable sash.

Operable fire-resistant windows: Fire-resistant windows with operable sashes and equipped with a sash opening and closing control device.

Insulating Fireproof Windows (Type A): Fireproof windows that meet both fire resistance integrity and insulation requirements within a specified time.

Non-insulating fire-resistant windows (Class C): Fire-resistant windows that can meet the requirements of fire resistance integrity within a specified time. Divided by fire resistance limits and thermal insulation performance:
Window Selection for Fire Resistance

Fire-resistant windows are made of steel, available in two grades: Class A (fire resistance of 1.20h) and Class B (fire resistance of 0.90h).

Fire-resistant windows are primarily used in fire walls of high-rise buildings, requiring the use of甲级 fire-resistant windows that can close automatically.

When the horizontal distance between doors and windows near both sides of the fire-resistant wall is less than 2 meters, Class B fire-resistant windows should be used.

In addition to residential buildings, kitchens in all other structures should be equipped with Class B fire-resistant windows.

One and two-grade fire-resistant building vestibule partition walls should use Class B fire-resistant windows when openings are made for windows.

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