Innovative comprehensive concept with airtight building shells

In particular in high-bay warehouses, fires can quickly become of control after they break-out: They spread upwards, and the hot fire gases can heat goods stored in the higher shelving areas to such an extent, that it can quickly lead to a backdraft up under the hall floor. A high-bay warehouse fire can therefore only be effectively fought in the development stage. In the majority of cases, high-bay warehouses use sprinklers; generally, this means that expensive collection tanks for extinguishing water have to be installed, and sprinklers can cause significant fire damage to stored goods and buildings.

Market economy forces treat companies, which did not provide for adequate fire protection, unmercilessly, and it is difficult to win back lost market shares. With inertion systems for active fire prevention, a fire protection solution is available, which does not guarantee that fires will be detected and fought, but more so that the outbreak of fires will be prevented.

These systems represent a new fire protection grade. In the case of almost all solid matter, combustibility is directly linked to the oxygen concentration in the surrounding air, and with a reduction in concentration, combustibility falls towards zero. This basic principle is used, using the controlled addition of nitrogen into the air, in the areas to be protected. The deciding factor: Access to the area is verifiably safeguarded, and the VdS certified system passed the field trial quite a long time ago.

In order to ensure increased fire protection, as well as the cost efficiency of the inertion, completely airtight building shells are necessary. Hammersen Elementbau adapted their achievements to these increased requirements. With our own material test installation, we are able to test and optimise the materials to be used for building, as well as the detailed connection points. Using special sealed connections and fugues, it was possible for us to achieve a N50 value of 0.0137 (this value stands for the air exchange rate of the entire building, per hour, at an excess or negative pressure of 50 Pascal).