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How to avoid the propagation of fire in facades?

propagación fuego

The subject of today are the conclusions of a study of the propagation of fire that has been issued by the College of Industrial Engineers of Catalonia on a study in which experts from different areas of construction and engineering have participated. One of the experts was a Tecnifuego representative from the passive protection area.

How to prevent facade fires?

The materials used when rehabilitating a facade are very important, since they can depend on the future of the buildings. However, the study commented above proposes several tips to be taken into account to avoid future catastrophes.

Proposals

In the first place, the strengthening of the security culture is very important. There are some countries such as the United States and the United Kingdom that have initiatives on this important aspect in their educational and cultural framework. However, in Spain there is still a long way to go. In this way it is very important to raise awareness in society about the importance of fires and how we can prevent them.



Secondly, they propose a proposal for modifications of the regulatory framework. In this way, the requirements for facades in the CTE should be adapted to the different types of buildings, paying special attention to their height and the difficulty of both their evacuation and the access of firefighting teams.

High-rise buildings

It is also proposed that for buildings of high altitude or difficult access for firefighters should ensure a slow and limited spread of fire and toxic fumes that generates, so it is proposed:
  • Limit the use of materials and products to non-combustible ones, as maximum A2-s1, d0.
  • Equip the air cavities of ventilated facades with vertical and horizontal fire barriers to limit the propagation of the chimney effect that occurs inside.

Easy access buildings

On the other hand, for buildings not considered high-rise and easily accessible to firefighters, the requirements would be less strict:
  • Limit the use of materials and products to those with a low combustibility and limited fire contribution, at most, B-s2, d0.
  • In those facades that support evacuation routes, limit the use of materials and products to those non-combustible, at most, A2-s1, d0.
  • Equip the air cavities of the ventilated facades with vertical and horizontal fire barriers, with the aim of limiting the propagation due to the chimney effect that occurs inside them.


Finally, regarding toxicity, the regulations should apply different criteria according to the uses and characteristics of the building. It is in the hands of all of us to avoid the spread of fires, in Sistema Masa we have it clear, and you?

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