Heinen develops fire resistant doors for a wide range of fields. Many of our products are tested to European standards based on the ISO 834 standard temperature/time curve which takes into account the rising temperature of a “standard” fire in order to define fire resistance (e.g. EI1 30, EI1 60, EI1 120…).
However, some doors need resistance for more specific situations where tests using the ISO 834 standard curve are not sufficient. In particular this is the case for tunnel doors where the requirements have been strengthened since the early 2000s. Requirements have also been stepped up to guarantee maximum resistance in specific situations where the temperature of a fire climbs far more quickly.
The performance features
of the Heinen fire-resistant HCM door
Heinen’s tunnel doors or HCM doors have met the requirements of the maximum level, i.e. level N3: HCM120 / CN240.
They are available as single or double doors. Symmetrical or asymmetrical HCM fireproof.