Good inlet metal door will greatly save from hacking. It consists of a steel box and a metal door leaf, which is firmly fixed by the locking mechanism and has additional structural features that allow you to maintain heat and protect against extraneous sounds, and when using additional functions – protect yourself from fire and bullets. All this can be provided by Guardian entrance metal doors.
Design features of metal doors
Metal doors can be: street, entrance, apartment, special, fire and bank. Although mandatory certification is provided only for the last two types, self-respecting manufacturers usually undergo such certification on a voluntary basis. According to the results of this procedure, all doors are divided into several classes according to resistance to breaking.
First class doors can usually be opened with simple tools, so they are most often placed where protection against accidental entry is required (outbuildings, basement, utility rooms). Doors of the second class are already much more difficult to open – so, this will require special tools. The third class includes doors with good protection, which are often installed as entrances to apartments and houses. The best option is the fourth class, which will protect not only from breaking, but from fire and bullets.
The core of each Guardian door is a steel frame, which is welded from a metal profile and has internal stiffeners. Hinges are welded to it, on which the door is later hung. To enhance sound and heat insulation, the door frame is filled with polyurethane or mineral wool inside, and the gaps are closed with external seals. To enhance the protective properties, platbands, porches, metal plates, anchors and deviators are used.
Masters approach each work individually, as a result of which products in the widest range are available to customers: from economy class doors to luxury execution.