Many people, having heard the phrase “metal door”, immediately recall those copies that reliably protect our apartments and cottages. Meanwhile, the doors made of metal can be seen in schools, hospitals, restaurants, sanatoriums and other institutions, while they will not be access. What happens: door door discord? Three varieties of metal doors can be distinguished conditionally: street, entrance and technical. What is the difference between them? Already from the name of the door of the first type, it is completely clear that they are installed on the street, for example, at the entrance to the cottage. These metal products have such qualities as strength, high resistance to hacking, good heat and noise insulation. And yet their distinguishing feature is a long service life. Thanks to the special production technology and the application of the protective coating by street doors, it is not terrible rain, snow and the scorching sun. High humidity, sharp temperature differences will not in any way affect their appearance and service life. Metal entrance doors are familiar to all of us: to see a dozen examples, just go to any entrance of an apartment building. Such doors serve as the main obstacle to attackers trying to get inside the dwelling. That is why during the production of steel doors, a bet is not on aesthetic attractiveness or anti -vandal protection, but on resistance to hacking. Complex design, reliable frame, thick sheets of metal turn the entrance doors into strong and impregnable barriers from robbers. Plus, such doors should provide excellent sound insulation – there is no place in the house. Technical doors are usually not as attractive as street or input. In addition, sound and thermal insulation is not their horse. Such metal doors are installed at the entrance to the ironing rooms, restaurants/cafe kitchens, hotel halls. Thus, they are especially characteristic of rooms where the risk of fire is high. Metal products have high fire resistance and are able to restrain the onslaught of the fiery element for quite some time. In places of large accumulation of people (catering enterprises, hotel institutions, medical institutions), these doors will interfere with the rapid spread of fire, which means that in case of fire they will save more than one life. It is worth noting that today there are universal doors on sale, combining all the advantages of the above varieties: stylish design, fire safety, penetration, high quality, as well as heat and noise insulation. However, with the number of valuable qualities, their cost increases.
14