What is fire resistance?
Classification according to DIN EN 13501-2
The duration for which the criteria of load-bearing capacity, integrity, and thermal insulation withstand fire is measured in minutes. The longer the product endures, the higher the fire resistance class it can be classified into.
SITEC offers you a range of products in different fire resistance classes. Simply get in touch with us—we will be happy to advise you!
Overview of Fire Retardancy Classes
Performance Criteria
Duration in minutes
E
15
20
30
45
60
90
120
180
240
EI1*
15
20
30
45
60
90
120
180
240
EI2**
15
20
30
45
60
90
120
180
240
*EI1 ≤ 140° max localised < 180° ** EI2 ≤ 140° max localised < 360°
E:
Protection against fire, hot gases and smoke.
Transmission of thermal radiation.
EI:
Protection against fire, hot gases and smoke.
Thermal insulation.
Performance criteria
Duration in minutes
E
15
20
30
45
60
90
120
180
240
EI1*
15
20
30
45
60
90
120
180
240
EI2**
15
20
30
45
60
90
120
180
240
*EI1 ≤ 140° max locally < 180° ** EI2 ≤ 140° max locally < 360°
E:
Protection against fire, hot gases and smoke.
Transmission of thermal radiation.
EI:
Protection against fire, hot gases and smoke.
Thermal insulation.