What is a fire window? Can fire windows be screened?

Fire-proof windows are composed of steel window frames, steel window sashes and fire-proof glass (fire-proof laminated glass or fire-proof composite glass), which can isolate and prevent the fire from spreading.

Fire windows generally cannot be fitted with screens.

Fire windows can be divided into fixed sash and movable sash according to their installation methods. Fixed frame fire window, which can't be opened, can light and shelter from wind and rain at ordinary times, and can prevent the fire from spreading in case of fire; The movable sash fire window can be opened and closed, and it can be automatically closed in case of fire to prevent the fire from spreading. After opening, it can remove smoke, and can also be used for lighting and shelter from the wind and rain. In order to open and close the sash of the fire window, automatic and manual switching devices must be installed.

According to the fire resistance limit, fire windows are divided into three levels: A, B and C. The fire resistance limit of Class A is1.2h; Class b is 0.9hC and class 0.6h H.