As an important fire protection facility in modern buildings, fireproof glass doors not only have the transparency and aesthetics of ordinary glass doors, but can also effectively block the spread of fire, isolate high temperature and smoke when a fire occurs, and buy precious time for people to escape and fire rescue. With the advancement of technology and the improvement of fire protection regulations, fireproof glass doors have gradually become the preferred fire protection product for commercial buildings, public places and even residential buildings. This article will comprehensively analyze this key fire protection facility from the aspects of functional characteristics, classification standards, application scenarios and purchase points.

Functional characteristics of fireproof glass door

• High fire resistance

Fireproof glass doors use fireproof glass that has been specially processed, such as single-piece cesium potassium fireproof glass or composite glass, which can maintain integrity at high temperatures. For example, Class A fireproof glass doors can meet the requirements of fire resistance integrity and thermal insulation at the same time, with a fire resistance limit of up to 3 hours.

• Excellent weather resistance

Unlike ordinary glass, fireproof glass doors can resist ultraviolet rays, temperature differences and humidity changes for a long time, maintain transparency, and avoid the whitening problem of traditional grouting fireproof glass due to environmental aging.

• High safety

The strength of fireproof glass is 6-12 times that of ordinary glass. After breaking, it will be small particles with blunt angles, which significantly reduces the harm to the human body. Some products are also combined with tempering technology to further improve the impact resistance.

Classification and structure

Fireproof glass doors can be divided into the following categories according to fire resistance and structural type:

• Classification by fire resistance

Class A (fire resistance 1.5 hours): suitable for high-risk areas such as machine rooms and warehouses.

Class B (fire resistance 1 hour): commonly used in fire passages, hospitals, office buildings and other places.

Class C (fire resistance 0.5 hours): mostly used for partitions with low fire protection requirements.

In international standards, some brands (such as Horman) also provide Class A doors with fire resistance of 90 minutes to meet higher fire protection requirements.

• Classification by structural type

Composite fireproof glass door: composed of multiple layers of glass and fireproof glue interlayer, with excellent thermal insulation performance, but there may be ultraviolet aging problems.

Single-piece fireproof glass door: chemically strengthened (such as cesium potassium glass), high strength and good weather resistance, but no thermal insulation function, suitable for curtain walls or non-insulated partitions.

Application scenarios

Fireproof glass doors are widely used in the following scenarios due to their balance of function and beauty:

Public buildings: fire passages and emergency exits in hospitals, schools, shopping malls and other places.

Industrial facilities: fire partitions in machine rooms, warehouses, and factories.

High-end commercial spaces: glass curtain walls in office buildings and transparent partitions in hotels, taking into account both design and safety.

Residential and special areas: such as home kitchens, basement fire doors, or fire partitions that require natural lighting.