Fire safety is not just a legal requirement, but a guarantee of the protection of human lives and the continuity of a business. In every building, from industrial halls and commercial spaces to hotels and offices, construction elements must withstand fire for a certain period, according to current regulations.
According to Regulation P118-1/2025 and the European standard SR EN 13501-2, any construction element (walls, floors, doors, partitions) is evaluated by three fundamental criteria:
- R – Load-bearing capacity,
- E – Fire tightness,
- I – Thermal insulation.
These criteria define the structural and functional behavior of a construction in the event of a fire.
R – Load-bearing capacity: the strength of the structure
The criterionRindicates the period during which a construction element maintainsits stability and ability to support loadswithout collapsing.
If a beam, column, or load-bearing wall fails under the action of fire, the entire structural system is compromised. In simple terms, the loss of load-bearing capacity means the beginning of the building's collapse.
E – Fire tightness: the barrier against flames
The criterionEevaluatesthe ability of an element to prevent the passage of flames, smoke, and hot gasesto unaffected areas.
A fire door, a partition wall, or a smoke vent that are no longer airtight become pathways for fire propagation. In such situations, the loss of airtightness equates to losing control of the situation.
I – Thermal insulation: protection against lethal temperatures
The criterionImeasuresthe ability of an element to limit the temperature riseon the non-exposed side to fire. The goal is to prevent the ignition of materials in adjacent rooms and to protect people inside.
Even if the temperature seems "under control," this criterion is only relevant if R and E are still met.
What must be remembered: if R or E is lost, I is also lost.
An essential aspect, often overlooked in practice, is that failing to meet the criterionR (load-bearing capacity)orE (airtightness)automatically leads tofailing to meet criterion I (thermal insulation).
This means that,even if the temperature limits are not exceeded, the element no longer provides complete protection. Essentially, there is no such thing as "partial fire resistance."
Why these criteria matter for contractors and owners
In a fire, the first minutes are crucial. A building designed and constructed according to the criteriaR-E-I:
- limits the spread of flames;
- provides time for evacuation;
- allows firefighters to intervene;
- reduces material losses;
- saves lives.
Neglecting these criteria leads to major risks: losing the ISU authorization, fines, or, more seriously, losing an entire investment in the event of a fire.
Conclusion: safety is not optional
Every detail matters when it comes tofire safety. Compliance with the standards P118-1/2025 and SR EN 13501-2 is not a mere formality — it is an investment insafety, sustainability, and responsibility.
A compliant building not only adheres to the law but also protects lives, property, and the organization's reputation. To better understand the complete process, we recommend consulting the article: Guide to Obtaining Fire Safety Authorization — a document that outlines the structure of the authorization file.
AtMedia Connect, we design and implement security solutions that meet all these criteria – fromdetection and signaling systems, tocomplete fire protection solutions.
For a comprehensive risk assessment and personalized recommendations for your building, request afree fire safety consultation session.