what is the fire rating of a smoke curtain?

The fire rating of a smoke curtain depends on its material and construction. Common fire ratings are as follows:

#### Non-combustible Material (Class A)

- **Material**: Ceramic fiber, metal, etc.

- **Features**: Virtually non-combustible with excellent heat resistance, effectively blocking the spread of flames and smoke.

- **Applications**: High fire safety requirement areas such as large shopping malls, hospitals, subway stations, etc.

#### Flame-retardant Material (Class B1)

- **Material**: Specially treated glass fiber, polymer materials, etc.

- **Features**: Difficult to ignite, does not easily catch fire when exposed to open flames or high temperatures, burns slowly, and quickly extinguishes once the ignition source is removed.

- **Applications**: General fire safety requirement areas such as office buildings, hotels, etc.

It is important to note that the specific fire rating of a smoke curtain should be determined according to its product specifications and relevant test reports. When selecting a smoke curtain, choose an appropriate fire rating based on the actual usage environment and fire safety requirements, ensuring the product complies with national and regional fire safety standards.