To save lives in fires during the construction and repair facilities use fire steel door. Fire doors is one of the types of fire barriers and allow you to stop fire in buildings, this makes it possible to evacuate people and material assets and allows you to stop the fire. Fire barriers are of two types – local and general obstacles. Among the local fire barriers are: hatches, doors, gates, latches and other details, and the walls, floors, walls and roof are common fire designs. Local fire protection designs are paying much less attention, although they develop as active as the previous ones. Therefore, sometimes people design houses are not always correct. For this propose to consider in more detail fire steel door as an important element of technology security. Today, many manufacturers use the door hardware, doors, boxes and other items made of steel, it is the best material, fleeing from the fire.
Steel fire doors did not differ in the size of the timber doors. Also, many designers try to approximate the appearance of fire doors to the ordinary door. To place an appearance of use coverage, quality is sometimes so great that not every immediately realizes that the door was steel. In modern laboratories conducted many tests with simulation of regular fires. Most study two refractory opportunities are: 1. preserve the integrity of the door leaf when effects of different temperatures with different time intervals, that is, how long it will not fall out of the door frame 2.