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Systems > Steel fire protection > General information |
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| General information concerning fire protection for steel |
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Filigree steel constructions are now an integral element of modern architecture. Indeed, it would be impossible to imagine work proceeding without them.
Regardless of how impressive this kind of construction with their expansive glass facades may be, they have a significant disadvantage compared with reinforced concrete construction. In the event of a fire, steel loses its stability and therefore its load-bearing capacity in temperatures in excess of approx. 500 °C. Depending on the fire load, the steel may reach this temperature within approx. 5-10 minutes; a full collapse of the entire construction is often unavoidable!
It is now important to delay the period before the steel construction collapses as much as possible in the event of fire in order to save human life and valuable commodities.
The corresponding fire resistance periods for certain structures made of steel are defined in the regional construction ordinances. They are defined by so-called F-classes such as F 30 and F 60, etc. For example, F 30 means that in the event of a fire, a steel construction must, under normal circumstances, withstand the fire for at least 30 minutes.
The speed at which the steel heats up is delayed by applying fire protection insulation coating, for example.
These coatings are paints; in the event of a fire, their constituents form micro-porous carbon foam. This foam protects the steel located below, so that the critical temperature of approx. 500 °C is not reached for a minimum period of 30 minutes.
The BC-Brandschutz-Ferrocoat is made up of this kind of fire protection coating. It is characterised by extremely low application volumes and is therefore extremely economical. It is particularly worth mentioning that there is the option of using the product for interior application even without a top coat. |
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Cable penetration seals
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