Ordinary glass doors cannot be fireproof. Only glass with certain fireproof characteristics can be used as doors and windows to prevent fire. Generally, the fire resistance can reach at least 1.0 hours.
The fire protection levels of glass doors are as follows
There are five kinds of fire-proof glass, one is laminated composite fire-proof glass, the other is laminated fire-proof glass, the third is special fire-proof glass, the fourth is hollow fire-proof glass, and the fifth is high-strength single-layer caesium potassium fire-proof glass.
Class A fire door, also known as fully insulated fire door. Because it has been verified by authoritative departments, it can meet the two requirements of fire insulation and fire integrity within the specified time. The fire resistance grades are 0.5h (Grade C), 1.0h (Grade B), 1.5h (Grade A) and 2.0h, 3.0h.
Class B fire doors can also be called insulated fire doors. Because in the specified time, its fire resistance and heat insulation requirements are 0.5h, and the fire resistance integrity is also reduced to a certain extent, which are 1.0h, 1.5h, 2.0h and 3.0h respectively.
Class C fire doors are also called partially insulated fire doors. Because this kind of fire door only meets the fire integrity during the test, they are 1.0h, 1.5h, 2.0h and 3.0h respectively. There is no requirement for fire resistance and heat insulation.
In fact, fire-proof glass is a kind of special glass that can maintain its integrity and heat insulation in the specified flame resistance test. It is divided into three categories according to the fire-resistant performance grade:
1. Class A fireproof glass that meets the requirements of fire integrity and fire insulation at the same time. This kind of glass has the properties of light transmission, fire prevention (smoke isolation, fire-resist, shielding thermal radiation), sound insulation and impact resistance, and is suitable for building decoration steel and wood fire doors, windows, brightening, partition wall, lighting roof, ceiling screen, see-through floor and other building components that need to be transparent and fireproof.
2. Class B fire-proof glass that meets the requirements of fire integrity and heat radiation intensity at the same time. This kind of fire-proof glass is mostly composite fire-proof glass with the characteristics of light transmission, fire prevention and smoke isolation.
3. Fire-proof glass of class C only meets the requirements of fire-resistant integrity. This kind of glass has the characteristics of light transmission, fire prevention, smoke isolation, high strength, etc. It is suitable for fire-proof glass partition wall, fire resistant window and outdoor curtain wall without heat insulation requirements. In terms of structure, fireproof glass is divided into composite fireproof glass and monolithic fire-resistant glass.
