The main distinguishing feature of two-sideddoor is a design consisting of two leaves. For their production is used steel profile with high strength and resistance to cracking. Simultaneous operation of the valves is possible, and both of them and the box itself may have different dimensions. The most widespread is a double door, in which one door is large and acts as the main door, the other is fixed with a latch and used as needed, for example for carrying out large furniture.
Such iron doors are most often found inpublic premises, at work, as well as in high-traffic entrances and corridors. Their use is rational in educational institutions and polyclinics.
The classic version is available asdesigns from three elements: shutters and a box. Refractory and thermal insulation characteristics are achieved using steel profiles and other fireproof materials that provide protection against overheating and deformation.
Door double metal installedboth in apartment buildings and in commercial premises in order to increase the safety of staying in them. It allows you to quickly evacuate residents and at the same time reduces the rate of spread of fire.
Раньше внешнее исполнение ограничивалось metal faceless canvas, suitable only for industrial premises. Currently, the assortment of stores presents a variety of options, covered with powder paint. Nitro enamel not only protects the surface from corrosion, but also gives the original look. There are also models supplemented with materials such as MDF and laminate. Fire doors dvupolnye can have decorative forged items, be carried out with or without glazing.
The main task of such structures ispreventing the spread of fire to other rooms, thanks to this, people can easily get out of the fire building. It is worth noting other features, including:
Now iron doors, the average cost of whichis in the range of 15-20 thousand rubles, has become widespread due to the many advantages and high decorative characteristics. Despite the variety of options, the choice does not cause much difficulty, also it should be noted easy installation, which requires minimal relevant skills and knowledge of the stages of work. Difficulties may arise with the installation of a mortise lock, as this requires the utmost care.
The main advantage is comfortableexploitation. The bilateral opening which is not demanding noticeable efforts is provided with a pendulum system. Exterior performance will make the room more comfortable and hospitable, while it is presented in a vast designer diversity. The door is double-sided, the price of which depends on the materials used, is best suited for non-standard openings, while single-door doors often have to be made to order.
Similar interior doors are not always comfortable insmall rooms, as in this case their operation is difficult. For a small apartment, sliding options that are notable for a smooth and silent mechanism are optimally suited.
Before purchasing you need to decide on the desiredkind of. There are two main structural performance - it is sliding and swing. The canvas can be massive, deaf paneled or glazed. The materials used for production are MDF, plastic, wood, glass and aluminum.
Preparing to install the door includesdismantling the old structure, in some cases requiring changes to the location for future location. The door frame can be purchased together with the canvas or made independently. Its dimensions should correspond to the available space, the width should not exceed the thickness of the walls, in case the box does not reach the external surfaces of the wall, the gaps can be closed using add-ons. The height of the opening and construction should also be verified in advance. When buying a loop is important to determine the appropriate side of the opening, it will prevent difficulties at the final stage of work.
Двупольная дверь представлена в обширном ценовом assortment, the material used has a great influence on the cost. Constructions made of precious wood are in the highest segment. Options from MDF and a chipboard will cost much cheaper. Also, the final price depends on the type of lock and the availability of additional elements.
Economy class options have won enoughpopularity, but their availability is achieved by various manufacturers tricks used to reduce manufacturing costs. The double door of this category has internal voids, so the amount of materials used and, consequently, the cost of the product decreases.
Also, the surface can be treated with artificial turf. Often, a thin top layer of wood is replaced with an artificial veneer, that is, a laminated coating.