In case of fire, protecting the lives of people is the most important. All occupants of the building should have the opportunity to evacuate on time, and the time available depends largely on the materials chosen and their behavior during fire exposure.
In order to facilitate and optimize this process, the European Union has adopted the Standard EN 13501 , introduced in the 2000s, which specifies a series of classes that determines the anti-fire properties of different materials. Their classifications are unified and compared based on the same test methods, and are currently used as a reference in many countries around the world.
Because of the architect’s role in choosing materials for projects, we have compiled the most important nomenclature to better understand the level of security of our built environment.