There is such a saying, if it burns, then everything burns. But in real life this is not entirely true, each building material has its own degree of fire protection. And accordingly, the house, built of different materials, will have various fire resistance, dependent on the combination of many factors of the materials used.
Also, the fire resistance of structures is affected by such characteristics as height — the number of storeys of the building and the construction methodology.
That is why during the construction they plan in advance the possibility of increasing the fire protection of the building due to special methods, which allows you to correctly calculate the necessary degree of fire protection of ventilation and other problematic elements of the building.
In modern construction standards, there are six degrees of protection characterizing the construction site.
The first degree of protection is the maximum degree and corresponds to the materials of stone, concrete and reinforced concrete used in combination with non -combustible materials. This group also includes refractory protective materials.
The second degree of protection is given in the same materials as in the first degree of protection, but from metal structures, which are not quite protected.
Given that modern construction uses a lot of metal, fire protection of metal structures and the correct determination of its degree is an important factor not to collapse the construction.
The third degree of protection has materials using cement and reinforced concrete along with wooden structures closed from fire with plaster or coatings of tiles and building sheets. This degree of protection is attributed in the case of use of impregnations with fireproof properties, usually in attics and attic.
The fourth degree of fire resistance has an even lower degree of protection against fire and fire, since the structures contain frames using wood. For such buildings, the requirements for protection against possible fire are not laid down in the project.
The fifth degree of protection corresponds to one -story structures using unprotected structural elements using combustible insulation and profile of steel.
The sixth degree of fire protection is given to structures, where there are completely no requirements for fire protection or the impossibility of spreading fire in construction.
Based on all of the above, the highest first degree of fire protection gives maximum protection to the building, but in the case of the sixth level, this is the lack of fire protection of the building as such.
The application of fire protection must first prepare the surface, clean it of fine debris and dust, dry it.
Then, with the help of a brush or sprayer, apply the first layer, evenly covering, the processed surface.
For effective processing, the composition of «Kobus» Prof is especially suitable for complete drying and proceed to apply the second and further (depending on the degree of protection) of the layers.
Experimentally, it is proved that five layers of coating give maximum efficiency. The minimum allowable coating by any type of fire protection is two layers.
Fire protection work should be carried out in a well -ventilated room using overalls and means of respiratory protection.
