Fire-resistant E/EW/EI/EI2/EI1 – RfEribel manufactures and installs a wide range of fire doors and other fire-resistant interior joinery. Fire resistance is intended to limit the spread of a fire within a building for a certain period of time. With Eribel fire-resistant doors, windows, and walls, we can contain fire for up to 120 minutes, in accordance with both Belgian and the new European standards.
Until now, the fire resistance of interior joinery has been assessed in each country based on a national standard. In Belgium, fire resistance is defined as the time (Rf, expressed in minutes) during which the joinery simultaneously meets the criteria of flame tightness (E) and thermal insulation (I).
For example, an Eribel fire door can have an Rf value of 120 minutes, meaning that this door can contain a fire for up to two hours. Fire-resistant doors are also sometimes referred to as Rf doors.
For several years, we have been transitioning to a European standardization. The European classification system is structured somewhat differently. It refers to several performance metrics determined by three main criteria: flame tightness (E), thermal insulation (I), and radiation (W).
Flame tightness (E) is determined based on three measurement criteria:
Heat radiation (EW) is measured as a radiation flux on the protected side at 1 meter from the element being measured. The result of this measurement must not exceed 15 kW/m². This parameter (W) is never indicated alone but always in conjunction with the flame tightness criterion (E).
Thermal insulation (EI) is a parameter that measures the temperature rise on the protected side of the door. To measure this temperature rise, thermocouples are placed at various standard locations on the joinery. Insulation (I) for doors is further divided into two categories: I1 and I2. The I1 tests are more stringent than the I2 tests.
EI2 (for doors)
EI1 (for doors)
For example, an Eribel fire door with an EI1 value of 120 minutes can withstand fire for up to two hours. Another term for fire doors is therefore 'EI1 doors'.
E: Anglo-Saxon countries, France
EW: Netherlands, France
EI: Most EU countries including Belgium, France, Germany, Italy, Spain, etc.
The standard describes the general conditions required for conducting fire resistance tests. To ensure consistent results across European laboratories, the test conditions are identical: thermal load, overpressure in the furnace, oxygen content, etc. During the test, we simulate a fire and study the response of the construction in terms of Flame tightness (E), Heat radiation (EW), and Thermal insulation (EI).
| Europe | Belgium | ||||||||
| Standards | Doors or Door and window combinations | Fixed Windows/Glazed walls | Doors or Door and window combinations | Fixed Windows/Glazed walls | |||||
|
EN 16034 |
EN 14449 |
NBN 713-020 + Benor/ATG | European classification | ||||||
| Classes |
E 30 |
EW 30 |
EI2 30 |
EI1 30 |
E 30 |
EW 30 |
EI 30 |
Rf 30 |
|
Our fire-resistant products can be enhanced with one or more additional performances: acoustic insulation, intrusion-resistant, airtight, smoke-resistant, radiation-resistant, thermal insulation, and water-resistant.
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