Windows made of PVC profiles and double-glazed windows actively replace the usual wooden structures. And this is not strange, since they have high sound and heat insulation, do not let air and dust escape, do not require frequent and complex care. Metal-plastic windows will be effective if they are properly selected and installed. Follow the recommendations of experts in the choice of structures.

What should be a quality PVC profile?.

The main element of the window system is the plastic profile, which is called the frame or leaf. It has a more complex structure than wooden analogs, which explains the improvement in performance. It is recommended to pay attention to profiles with a minimum wall thickness of 3 mm. In the market are available profile systems and with thinner walls, low cost which attracts many buyers. In their production, low-quality plastic is used, which is easily bent and deformed during operation. Within a few years a gap may form between the profile and the main surface. In this case, to determine "by eye" thin-walled plastic is almost impossible.

Metal-plastic profiles are produced not only with the use of plastic. The structure is reinforced with reinforcement using galvanized metal. It prevents deformation under mechanical action and temperature changes. Quality reinforcement is provided by using a metal with a thickness of at least 1.4 mm. This is quite enough for windows that will be installed in living quarters. Metal inserts make the shape of the window more rigid, not significantly increasing its weight.

Some manufacturers use "black" metals instead of galvanized ones. They are corroded after the first contact with moisture. Even in unidentified windows there may be rusty metal inserts. Not all companies adhere to the recommended thickness of metal, reducing it to 1 mm and even less. Such windows do not provide the performance of the functions assigned to them.

Determine with a double-glazed window The choice of a double-glazed window for metal-plastic windows is no less important task. This element is responsible for sound insulation and thermal efficiency of the structure. One- and two-chamber double-glazed windows are common. The first type is rarely used for living quarters, since they do not differ in good performance. Double-pane double-glazed windows are much better at keeping sounds and keeping heat inside, so their cost is higher. They are great for installation in homes along motorways, busy streets and other noisy areas.

Two-chamber double-glazed windows with different characteristics are developed:.

It is best to suppress the noise of the construction with air chambers of different thickness, the inner glasses in which are narrower than the outer ones. Check these options yourself is impossible, you should rely on the reputation of the manufacturer.

Instead of air in the chamber, an inert gas is injected, which increases the energy efficiency of the structure.

The glasses are coated with a special spray, which helps to keep the heat inside the room.

It is recommended to choose the double-glazed windows with the greatest energy efficiency, because in winter they do not let warm air out of the room outside, and in summer - inside. This allows you to maintain a comfortable microclimate at any time of the year.

Additional window elements The equipment of metal-plastic windows is not less important. Sealed constructions perfectly show themselves in the winter, but in summer they do not let fresh air out.

Therefore, separate systems for ventilation of premises. Mosquito nets will save you from mosquitoes and small debris in the summer. The effectiveness of low seals sharply decreases in severe frosts.

Remember that metal-plastic windows are bought once a few decades. Therefore, one should not choose the cheapest constructions for living quarters, which will become unusable in a couple of years. Reliable manufacturers also give a guarantee on their products.