- Class E: Integrity, or resistance to destruction. Heat transfer is allowed.
- Class EI: Integrity and thermal insulation. The maximum heating on the back side of the fire is not higher than 220 ℃
- T average: the average temperature on the unheated surface of the structure should not rise by more than 140 ° C
- T max: the maximum temperature on the unheated surface of the structure should not exceed 220 ° C
Melting point of steel - 1500°C
Melting point of aluminum - 660 °C
The ignition temperature of the tree is about 200 °С
Results of fire tests
Steel fireproof doors
after the end of the fire tests
EI 90
Aluminum fireproof doors
after the end of the fire tests
EI 30
Durability
Volkswagen Showroom, Minsk, Belarus
- Steel door PRANAS EI 30
- size 2400 x 3500 mm
- More than 15 years of trouble-free operation without sagging and misalignment of the shutters
National Library, Minsk, Belarus
- Aluminum door EI 30
Modern style
Fireproof doors EI 30 - EI 60 on steel profile
