Reliable outer door – guarantee of safety and comfort. For this reason most often the door to the apartment is done metal. The steel structure prevents penetration into the dwelling of strangers, perfectly isolates the room from cold and undesirable noise. When choosing steel shutter it is necessary to pay attention and to its esthetic characteristics.
Instruction
1. Estimate reliability of door cloth and box of door. Pay attention to thickness of plate of which the door is made. Optimum thickness of steel cloth has to be not less than three millimeters. Very thin door is less reliable at mechanical influence, it can easily be deformed blows of sledge hammer, and then to wring out by means of the short scrow-bar. Check reliability of fastening of door hinges.
2. Examine face side of door. The good door is made of one continuous cloth. If the door is made of two or three parts connected by welds, then in this case the structural strength will be significantly lower. The door has to have rather wide rabbets – speakers so call the sites of front part of cloth of door hiding slot between door and box.
3. Make sure that the door chosen by you reliably will protect the dwelling from extraneous noises. It is the best of all if the steel shutter has additional finishing by tree or the special soundproofing panels. Isolation can be executed from outer side. In this case the covering bears also esthetic function. Sometimes panels fix from the inside of cloth.
4. Check whether there are on door internal stiffening fins. These constructive parts increase reliability of cloth and its resistance to breaking. Such armature usually is located from internal part of door, separating cloth into several sections. Sections can be filled with heat-insulating material, for example mineral wool or polyfoam.
5. Evaluate, the locking devices installed on door how well work. Optimum, if the door is equipped by two or even three locks of different type. Make sure that the mechanism of locks is serviceable and convenient in operation. For additional protection the door can be equipped according to your desire with additional protection against breaking or the devices of safe type having potential of blocking and protection of door on all perimeter.