The entrance door is the main obstacle to the attackers who wish to get into the apartment. Therefore, the question of how to choose a good entrance door is interested in each. Today, building stores and numerous manufacturing firms specializing in the manufacture of metal products offer many options. What entrance door is better to put on and what to pay attention to when it is selected? This and other questions in this article will be answered.

What entrance doors are better

The best doors are durable, reliable and aesthetically attractive. They must withstand multiple opening and closing during the day. Soundproofing should fully block the path not only noise noise from the outside, but also prevent information leakage outwards. The requirements for thermal insulation are high: doors and details of the box should not be "cold bridge".
Choosing the material, it is necessary to take into account that the most good entrance doors are metallic. Wooden went into the past: their reliability is lower than those of cooked from the corners and sheet metal. Over time, they lose weight, they are lying, lose appearance and strength, so stop the choice follows metal.

Basic entrance doors

Choosing the most acceptable option among the sets presented in the store, the following requirements should be made to the doors.
1. Good steel entrance doors are impossible to break down hands or feet, they must resist for a long time when the sledgehaft strikes. It will not be possible to check on the spot: to make sure the strength of the structure can be used by studying the passport of the product and inspected the castle. The complexity of the lock should be high. It is better that there are two (suvalid and cylinder), they should be located at a distance of at least 300 mm.
2. It is important that panoramic obstacle eye is installed, it was possible to install a webcam and electronic security system.
3. Transverse and longitudinal struts are required.
4. The door frame must be attached to the P-shaped wall with anchor bolts;
5. There must be a guarantee from a reliable, well-known manufacturer who has many years of production experience.
6. The door must have good heat and sound insulation. The latter is easy to check: for this you just need to knock on it and estimate the level of the sound to you from the other side.
7. The door must be beautiful (although it is not the main quality) and from the inside, and outside. The color of the paint or finishing material should be approached by the interior of the hallway.

The best entrance doors have the following elements in their design:

• The outer surface should be made of a solid leaf of Kalenoy steel with a thickness of at least 2 mm, without welds;
• The rear sheet may be thinner: from 1.5 to 2 mm;
• The platbands must also be made of metal: they must overlap the gap between the door and the box, preventing the use of montage;
• The door must have a follower: this protruding edge of the front sheet additionally overlaps the gap between the box and the web;
• The most durable doors other than the outer and internal sheets of the metal have even additional, established between them;
• The geometric shape of the door and the door box must be correct: any distortion and disorders of the planes are not allowed;

The best inlet metal doors are necessarily heavy: this indicates the thickness of the metal and reliability of the design, the presence of transverse and diagonal rigids.

Internal loops should be avoided: their design is not reliable, they can jam.

What sound insulation and thermal insulation should have an entrance door

What entrance doors are the best in terms of sound and thermal insulation? Those in the design of which laid modern materials. Technologies make it possible to achieve a good result without a tangible increase in the weight of the door. For this:

• Rubber seals are fastened to the perimeter of the front and the door frame: for tight fit of them, the best manufacturers provide for special recesses in the appropriate part of the web or box (except heat insulation, these seals are needed to detention out of the outsider);

• Outdoor and internal decorative panels with a thickness of at least 8 mm thick to create an outer noise bar;
• cavities inside the door are filled with extruded polystyrene foam or foam for heat and sound insulation;
• The door frame is strengthened with concrete, filling out the opening between the parts of the frame design items.

What should be the appearance of the entrance door

Modern doors do not finish, as before, leatherette. The handicraft production of the product is covered with decorative PVC film or cover paint with a "hammer" effect.
Today the doors input are the best produce with decorative panels and lining:

• from MDF;
• plastic;
• veneered plywood;
• lacquered (tinted) solid wood of valuable rocks.

The thickness of the panels is from 4 to 20 mm, on their surface geometric drawings or plant ornaments. Used and genuine leather.

Castles for entrance doors

What entrance doors are better to choose, evaluating the installed locks? This is important as the choice of material of the door canvase. It makes no sense to strengthen the design with thick sheet steel if the locks open without difficulty.

The entrance door must be equipped with two locks of different systems. It is impossible to install them close to each other so that in the apartment it is impossible to get through with the help of a grinder or "fombus".

By purchasing inlets metal doors, what better to install locks? Well established "crab" Suwald Castles: Dissolving in all sides of the Rigels complicates the task of unauthorized opening of the door. In order for the riglels to be impossible to refill, they are placed inside the door cloth in metal tubes. The cylinder lock is enhanced by cornmarklack. The castles of imported production are more reliable and better, the number of key combinations are an order of magnitude higher than that of domestic analogs.

A cheek from the inside will serve as an effective additional safety agent. It is easy to open in case of fire: For apartments, as a rule, do not use expensive certified fire-resistant doors, and the castles and the riggers of ordinary are deformed when heated, after which it is impossible to open them. Cheeks are mortise and overhead design. Door chain is not effective: it will not stand the massive metal door.

Loops of entrance doors

What good entrance doors have a loop? Heavy metal armored doors are installed on hinges with bearings. Those that is easier should be equipped with anti-blank pins that impede the dismantling of the door with scrap.

Hidden loops can not be cut off with a grinder, but they are not reliable, so it is better that the design covered three is four ordinary loops, but with a support bearing or a ball. A larger amount of loops evenly distributes the load (if the weight of the door leaf exceeds 70 kg).

Import doors better or domestic?

All doors that offer trading networks, overseas production and domestic. Imported (with the exception of cheap, Chinese) - good quality. They are produced by enterprises of Germany, Italy and other European countries. These are high-class models (2nd and 3rd) anti-burglar stability, with thick steel walls and reliable fittings. The doors of foreign production are not always suitable in width to the doorways of houses of domestic projects. Their high price (from 30 thousand rubles or more) is explained by the high cost of transportation and therefore on sale, mostly domestic doors.

The design of the doors of Russian is the same as imported, but the insulation is better fulfilled, which is important for our conditions. The general condition is the mandatory installation of two locks.

Handicraft doors are of good quality (they are from 10 to 15 thousand rubles), but the shut-off system is often debugged in the best way and problems often arise. Castles selects the customer that is inconvenient and not correct. Warranty on such doors is often not provided.

The worst in quality are the Chinese doors: the material of the walls is thin, the coating is not resistant, the paint begins to crumble after a couple of months after installing the product. Such such doors are revered by a simple cans, and the heat-insulating layer is from ordinary cardboard. Low cost (up to 3 thousand rubles) attracts buyers, but it is possible to purchase Chinese doors for a temporary installation during repairs or for rooms in which valuable things are stored will not be stored.

Comparison of doors of some Russian firms

Input doors What firm is better and what kind of design they should be? To find out, you need to compare the main characteristics of various products. They can be divided into three classes: premium, medium level and cheap, poor quality. Russian premium doors are not inferior to overseas. These include rubbing companies, senator: their doors have additional anti-vandal coatings (including Russian realities).

To the golden middle (prices - within 15-20 thousand rubles) include the bulk of domestic manufacturers of steel entrance doors. The most famous are: Tapere, Condor, Le Gran, Guardian, Gardian, Project: Products These firms meet the requirements of GOST. Here is a characteristic of some.

1. Doors of the company "Protek". They are made of high quality materials safe to human health. The accessories of imported production is established, from well-known manufacturers. The options for finishing are used.

2. TOREKS doors are manufactured using imported equipment, which guarantees compliance with sizes. Class of antszlost castles - 2nd. The bottom lock is supplied with a latch. The loops on the bearings are installed external, which increases the opening angle of the door web.

3. Doors from "Condor" are also produced on imported equipment, they are equipped with Gardian castles. Doors outside are covered by abrasion resistant powder paint, and from the inside are separated by the MDF panels.

4. The Firm "Forpost" produces the doors of the "right" and "left" type. Finishing under the expensive tree varieties or with imitation of chocolate tiles.

To create heat and sound insulation of all these models, a mineral wool of high density and rubber seals pasted around the perimeter are used. Any option can be used for apartments.