Entrance Doors That Rationally Choose Reliability Or Cost

2023 Author: Philip Bishop | [email protected]. Last modified: 2023-08-25 07:54

Criterias of choice
Variety of models
Chinese entrance doors: disadvantages and features

Today, in addition to traditional metal entrance doors, special types of door designs are presented on the market, which have additional capabilities. They differ in specific characteristics and serve to perform specific tasks. It should be noted that entrance metal structures are effective protection against unauthorized entry. Also, with proper installation, they can be operated for a long period of time.

Criterias of choice

When choosing a metal entrance door, you must first take into account where they will be used. For example, steel products installed in a private country house are in direct contact with unfavorable climatic phenomena and therefore they must be made of special materials that are resistant to high levels of humidity and air temperature. As a rule, in this case, a reinforced door frame is used that can withstand significant mechanical stress, including when using special fasteners with anchors.

Installation of entrance doors only on one foam is prohibited!

Entrance doors in apartments are less susceptible to burglary due to the increased noise, which will undoubtedly attract the attention of neighbors, and the criminals will be exposed. In this case, smart burglary is used and therefore unique locking devices are used as protection.

As a rule, in this case, it is best to install two or three locks of different designs, which will take a significant amount of time to break and therefore, most likely, attackers will switch to a simpler option. Today, in order for metal doors to be used for a long period of time, they should be correctly and professionally installed. A wide range of metal entrance doors is presented on the website

Variety of models

Special noise-resistant structures are widely presented, which are most often mounted in apartment buildings to prevent the penetration of extraneous noise. For the most part, they are thicker than traditional steel entrance doors and use synthetic or natural sound-absorbing elements for internal filling. Among other things, polyurethane foam is used to fill the voids formed between the doorway and the frame. A rubber threshold is placed inside the canvas, which, when closed, goes down and thereby provides an additional level of sound insulation.

Most often used as fillers:

corrugated board;
mineral wool;
polyurethane foam, etc.

Corrugated cardboard is used in the most budget models: it does not provide good sound and heat insulation, but almost does not affect the weight of the product.

Mineral wool is an outdated material that works on the principle of a down jacket: over time, it settles and voids appear. In this regard, some manufacturers have switched to Rockwool filler, which retains its shape.

The most modern solution is polyurethane foam - a more durable foam material, with which all voids inside the canvas are filled under high pressure. In terms of thermal insulation, polyurethane foam is better than mineral wool, in addition, its shrinkage is zero. If we talk about sound insulation, then the level of sound absorption is:

for corrugated board - 10-15 dB;
mineral wool - from 15 to 25 dB;
polyurethane foam - up to 34 dB.

Chinese entrance doors: disadvantages and features

China is the world's leading manufacturer of low-cost, high-quality goods. Today, products from the Middle Kingdom compete with many European brands. But if we talk about metal entrance doors, then everything is not so simple. The advantages of these products include their affordable cost and attractive appearance. In all other respects, Chinese doors are far behind the products of third-party manufacturers.

Chinese-made entrance doors are presented in different price categories. The lowest price segment includes models made of metal sheets with a thickness of no more than 0.5-0.8 mm. Corrugated cardboard and expanded polystyrene are used as a sealant. Such doors are not able to protect the premises from cold and noise, not to mention the intrusion of unauthorized persons. For this reason, it is recommended to install them in apartment buildings with a common vestibule.

Models of the middle price segment also do not differ in high strength and burglary resistance. Their door leaf thickness is no more than 50 mm, and the thickness of the steel sheet does not exceed 1 mm. As for finishing, Chinese entrance doors are usually covered with hammer enamel or PVC on both sides. They are completed with the simplest lock and one sealing contour.

More durable and reliable models of Chinese entrance doors can also be found on sale. In terms of cost, they are at the level of economy class models of Russian manufacturers and are practically not inferior to them in quality. They are produced using modern European equipment. Structures are made of steel sheets with a thickness of at least 1.5-2 mm. Mineral wool is used here as a sealant.

Experts recommend installing fireproof metal doors that allow you to localize the flame in a confined space and prevent it from spreading over a certain area for a set amount of time. In this case, fireproof steel doors allow the flame to be contained for the required amount of time until the first firefighters arrive and respond quickly. According to existing standards, this time should not be less than thirty minutes.

Armored entrance doors are designed to protect a house or apartment from burglary through the use of significant mechanical impact. They are distinguished by a high level of strength and at the same time are protected from the adverse effects of external factors. Most often, armored products are mounted together with a special lattice element that opens into the room. A special crossbar mechanism is used as a locking device, to protect it from burglary, two or three additional locks are used.