Brannmotstandsgrad

Brannmotstandsgrad, which translates to "fire resistance level" in English, is a classification system used in Sweden and other Scandinavian countries to indicate the fire resistance of building materials and structures. This system is crucial for ensuring the safety and structural integrity of buildings in the event of a fire.

The brannmotstandsgrad is determined through standardized fire tests that evaluate the ability of a material or structure to withstand exposure to fire for a specified period. The tests assess several factors, including the material's ability to maintain its load-bearing capacity, prevent the spread of fire, and limit the transfer of heat.

The classification system typically includes several levels, such as REI 15, REI 30, REI 60, REI 90, and REI 120. The "REI" stands for "Resistance au feu" (fire resistance) in French, and the number indicates the duration in minutes that the material or structure can withstand a standard fire test. For example, REI 30 means the material can resist fire for 30 minutes.

In Sweden, the brannmotstandsgrad is regulated by the Swedish National Board of Housing, Building, and Planning (Boverket) and is a key component of the country's building codes. The specific requirements for fire resistance can vary depending on the type of building, its use, and its height. For instance, high-rise buildings and public structures often have more stringent fire resistance requirements compared to residential homes.

Understanding and applying the brannmotstandsgrad is essential for architects, engineers, and builders to ensure that buildings meet safety standards and protect occupants in case of a fire.