Name and type of plastic windows cartoon. What shapes do plastic windows come in? Difference in Shape

The decision was made to install a plastic window. Types of windows - what are they? The best ones are those that suit your home.

Initial stage

First you need to choose the shape of how the window will be located, view the types of windows, and only then make a decision. They should be chosen in proportion to the room: there should be enough light in the room, but if the opening is too large, the feeling of comfort is lost. is a necessary element that tightly connects to a brick or other wall. The doors in the product are a movable part, which, depending on what fittings are used, can be tilted or opened in different ways. There are doors that, when opened, rotate around their axis vertically or horizontally. The double-glazed windows are secured using glazing beads in them.

Plastic window: types of windows by frames and sashes

They can be single-, double- or triple-leaf, and they also differ in the number of chambers in the double-glazed window. In terms of functionality, such models are close to ordinary wooden windows. These options are ideal for those people who prefer to install inexpensive but quite practical products in their home. A traditional window will do here. These types of windows are ordinary rectangular structures that open inward. A small disadvantage that is inherent in standard plastic double-glazed windows with rotary sashes is that ventilation in winter is quite problematic, since cold air flows in in a rather strong stream when the window is open.

Fixed types of plastic windows are good for everyone: durable, reliable, and inexpensive. These are windows with fixed, locked sashes. In addition to these elements in the product, the frame itself can also hold the glass. The disadvantage of such window boxes is that they cannot be opened. It is recommended to install this model for decorative purposes: it will add space and light to the room. A solid design is quite acceptable in a space that is equipped with sufficient ventilation: in cafes, restaurants, gyms and other similar establishments.

And finally, tilt-and-turn windows - types of windows of this design are the most popular and in demand. In the summer heat, the sash can easily be fully opened, and in cold weather it is enough to open the upper part of the window for ventilation in a horizontal position. It is very convenient to use this function in inclement weather, especially if the layout of the apartment contributes to the formation of drafts. The folding position eliminates the possibility of their occurrence and helps to avoid the risk of damage to the structure if the window suddenly slams shut.

Pivoting plastic windows can only be opened in one direction, which is not always convenient. Tilt-up products can only be opened from the top, so they are perfect for landings, basements and other areas where casement windows can pose a hazard as well as a nuisance. They rightfully received a leading position due to the fact that they can turn and recline.

Profiles

Today, manufacturers of plastic products offer a fairly extensive range of PVC window profiles, from which a plastic window will then be assembled. When choosing a profile to be used in manufacturing, you should focus on their functional purpose. When producing plastic windows, different types of profiles are also used.

Economy-class three-chamber PVC profiles and aluminum structures are perfect for glazing balconies and loggias. Four- and are used for glazing in regions with harsh cold climates and in houses located near a railway or a noisy highway.

Bottom line

Double-glazed windows perform their functions perfectly, being responsible for:

• heat and sound insulation;
• illumination

They are reliable and safe. Their characteristics directly depend on the quality, so the choice of plastic windows should be given special attention, then you can hope for their long-term operation.

The importance of a window opening for any building or structure cannot be overestimated. Thanks to them, homeowners have the opportunity to save on electricity and create a favorable microclimate in living rooms. But for this it is necessary to select a high-quality PVC window that meets all needs and requirements.

From simple to complex

Research shows that only high-quality plastic windows meet all standards and requirements, as well as price preferences. It is not surprising that these products are very popular among consumers, which is based on the following parameters:

• accessibility;
• various types;
• reliability and quality.

Availability is expressed in the cost of plastic windows, which is still the lowest of all categories of goods for this purpose. Moreover, photo and video installation materials allow you to perform the installation yourself. At the same time, plastic requires virtually no maintenance, which is also appreciated by buyers. Reliable locking mechanisms allow you not only to open the doors, but also to use them for various modes of air supply to the room.

But most importantly, these are a variety of types and shapes of window structures, which allows you to make glazing not only functional, but also visually attractive. There are all the prerequisites for this. The user can choose from the following product forms:

• rectangular;
• square;
• trapezoidal;
• arched;
• round.

Based on these types, a lot of more complex products are produced, the dimensions of which are limited only by the physical characteristics of the PVC profile. Simple designs do not contain at all or in small quantities additional parts that divide the window space into separate fragments that can be opened. And more complex options can surprise with their design and functionality, which is so attractive to modern builders and designers.

For non-residential premises and production

The shape of the window frame is not the same for rooms of different purposes. For non-residential or industrial buildings, certain types of structures are used that have a simpler manufacturing option. As a rule, these are blind frames with no sash that can be opened. They are intended only to illuminate the interior space, and therefore do not require additional mechanisms.

In some cases, simple window designs that can be opened are used. Most of these products only use the tilt function, where the top of the sash swings halfway down, stopping at a 45-degree angle. This is quite enough to obtain the fresh air necessary for people to work comfortably. Photos of such products can often be found on enterprise websites.

There are also combined forms, when blind structures are diluted with a transom located in the upper part. This type is large in size to provide high-quality lighting for the space inside a workshop or warehouse. It is worth noting that the cost of such PVC windows is quite low, which attracts many managers.

Variety of types for residential premises

If production areas require simple structures, then for residential buildings products of more complex configurations are used. This is due to the desire of the owners to obtain beautiful and multifunctional window systems that provide comfortable living. Therefore, in manufacturers’ offices, buyers carefully study every photo of the product offered.

Most often, for apartments, a design with two doors is chosen, one of which can be opened in several planes (turn and tilt).

Triple-leaf plastic windows are also used for spacious rooms. In this case, one part always remains blank, since it does not play a key role either in ventilating the room or in caring for the structure. There are also types in which a blind transom is located at the top. She is responsible only for the light space.

For the construction of buildings according to individual projects, exclusive plastic windows are required. This involves manufacturing not according to accepted standards, taking into account the design of the facade, which looks harmonious when viewed from the street. Such designs look impressive not only in photos, but also in a real project. Arched profile bends are almost always present in such structures. But there may not be so many opening sashes, since the main function of these plastic windows is aesthetics and beauty. But the structures will be reliably protected from external precipitation, as well as wind and other troubles.

When choosing the required window system, you should pay attention not only to aesthetic forms, but also to the quality of the profile itself. The service life of the product depends on it. In addition, the locking system should also be inspected, since if it fails, the entire structure will no longer be able to open. Therefore, the choice should not be based only on photo materials.

Heating and cooling glass

What else is the difference between plastic windows and all others? The presence of a double-glazed window, which makes these designs unique. There are two types, differing in the number of spaces. Double-glazed windows with one chamber are cheaper, but also less temperature-resistant. For severe frosts and high heat, double-glazed windows should be used. Only with the help of such PVC windows will the interior be cool in summer and warm in winter.

The strength of the profile when using a double-glazed window with two chambers should be maximum. Otherwise, if you open such a sash, it may not withstand it and become deformed, rendering the structure unworkable. But for elite products this is unacceptable. Therefore, all types of window structures are made from reinforced profiles.

When choosing a double-glazed window, you should pay attention to the size of the chambers themselves. Now you can purchase systems with different widths between the glasses. It is assumed that the space can be filled with a special gas. Only it guarantees the absence of a dew point on the inside of the PVC window, but its effect has its own period.

Today, windows are made from a variety of materials and can have a variety of shapes. Based on this, you can ask the question: what types of windows are there? The correct answer to the question is the classification of products.

For example, they can be divided into types according to the material used to make them:

• PVC structures;
• wooden;
• aluminum;
• combined view windows.

In addition to the material, frames can be divided into groups according to design:

• paired;
• separate;
• single.

Today, products can be with single glazing or double glazing.

Classification of windows by material

Today, systems are manufactured using very complex technologies, which achieves excellent results in heat and sound insulation. Products made from PVC are very popular today. But for those who prefer the classic version, wooden frames are also made using new technologies. As a result, the finished product is radically different from old wooden ones.

Metal-plastic.

Metal-plastic structures have been known to the world for more than 50 years. They appeared on the territory of our country much later. All products were imported from other countries, since domestic production was not established. Today, using technology from leading brands, products are manufactured in the country. The metal-plastic device consists of:

• polyvinyl chloride profile;
• reinforcement made of galvanized steel, which is located inside the profile chambers;
• high-quality fittings;
• glass unit.

Using a PVC profile in a production environment, you can create a window of completely different configurations.

Aluminum windows.

Many people associate aluminum with industrial buildings, offices, and shops. It is in such establishments that aluminum window frames are most often used. Due to their strength, such frames are installed in houses where they will be subject to intense loads. Also very often, such metal frames are used for the construction of winter gardens and glazing of balconies. It is this frame that will allow you to create a large window.

Wooden windows.

Previously, only wooden windows were installed in houses, which over time became deformed, cracks formed, through which heat was lost and cold entered. Today, in order to create a wooden window, new technologies are used. For the manufacture of such windows, hardwood or three-layer timber is used. It is the use of laminated veneer lumber that completely eliminates the possibility of any deformation. The glazing is modern single- or double-chamber double-glazed windows.

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Combined type of windows

According to experts, such windows will soon occupy a leading position in the field of glazing. This is due to the fact that such windows use several materials, for example, wood and aluminum, wood and plastic, etc. Having absorbed the best qualities of the materials used, such windows will last for a very long time, without causing unnecessary trouble in their maintenance.

The most striking option for a combined window is a structure made of a three-layer profile. The first layer is decorative, made of wood. The second layer is made of metal, it protects the structure from environmental influences, and also gives the frame rigidity and stability. The third layer is made of polyvinyl chloride; the main purpose of using this material is to significantly increase the thermal insulation qualities.

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Main Features

Windows are a source of natural light in the apartment and access to fresh air. This is especially important in apartments where ventilation systems do not work so well.

But at the same time, they create significantly greater heat loss during the cold season. It is through glazing that the largest amount of heat is lost. In order to significantly reduce such losses, it is necessary to select the correct profile, clarify the design of the glass unit, and check all joints. Blinds and curtains can be additional measures to preserve heat.

Double-glazed windows.

The number of glasses in a double-glazed window plays a very important role in heat retention. There are options for windows with one glass, but heat loss in this case will be maximum.

A double-glazed window, in which two glasses are installed, forms a kind of air gap that will reduce heat loss. Modern double-glazed windows can have two or three sheets of glass. Additionally, the space between them is filled with dry air or gas.

All joints are closed with sealing profiles.

In addition to light, extraneous sounds and noise enter the room through the windows. Sound insulation will depend on the number and thickness of glass. To minimize the passage of extraneous sounds, it is worth taking care to seal all joints, not only the window structure, but also the junction of the window and the opening.

When choosing a system, you should pay special attention to the type of opening. Today, thanks to accessories, products can be:

• folding;
• rotary;
• tilt and turn;
• deaf;
• sliding.

Blind design.

This design does not involve opening the doors. The product costs much less than other options and is as reliable as possible. It is used in houses quite rarely, since it is almost impossible to wash it from the street if it is not located on the ground floor. The only option may be to completely remove the glass unit and then install it in place. Fixed windows can be installed on the side walls of the balcony or in the entrances. They can also be installed in private homes as a source of natural light in the hallway or terrace.

Folding design.

If the window is equipped with tilting fittings, it can be opened to the ventilation position (vertical opening). In this case, normal opening is not available. Like a fixed window, this design does not have access to the outside, which prevents the window from being cleaned. Such a window can be installed in a place where full opening cannot be achieved. This is possible if the layout of the house does not have enough space to allow the sash to open completely. But, unlike a blind window, such a window allows you to gain access to fresh air.

Rotating window design.

The rotating design opens in the traditional way. This method allows you to gain access to the outside and adjacent doors. This design is very easy and convenient to care for. The disadvantages include the need for free space, which will allow the doors to open freely. Similar elements are installed in almost any room.

Swivel and tilt design.

The most popular and common type of opening. Those. allows you to open both in the classic version and leave the element in the ventilation position. They are also installed almost everywhere.

Sliding system.

This system for opening metal-plastic windows appeared relatively recently. This opening method allows you to open all windows completely, even in the narrowest room. This system is most often used on loggias and balconies. The quality of windows with such an opening system is no different from the usual opening system. All joints are completely sealed and do not let cold air in.

It's good to have plenty of daylight in, but the large windows that allow it in act as a cooling factor when the outside temperature drops below room temperature. Heat loss through a double-glazed window occurs in two ways - direct heat transfer and through leakage of infrared radiation.

Obviously, windows do not have the same thermal insulation properties as walls. Even the highest quality double-glazed windows conduct heat 2-3 times better than the main enclosing structures. When determining the size of windows in a future living space, it is necessary to find a middle ground - a compromise between its area and the size of the windows.

In living rooms where people will stay for a long time and often, the ratio of the total area of ​​windows to the area of ​​the room should be at least 1:8, i.e. in a room with an area of ​​24 m², the window area should be at least 3 m². If there is only one window, then it must be planned in the middle of a long wall. The height of the window, as well as its shape, also matters. Through a high window, more light will penetrate into the room. Accordingly, the elongated shapes of the windows contribute to better insolation. There should not be a large distance between the upper slope of the window and the ceiling.

Premises, so-called daytime areas should be well and evenly illuminated. These include, first of all, the living room and dining room. Such rooms do not require excessive insolation, but at the same time, a lack of light will greatly worsen their comfort. So, in a living room with an area of ​​27-30 m², it is necessary to install either two windows, each measuring 116 x 114 cm, or one large balcony-type window, measuring 146 x 230.

There is no need for a lot of light in the bedroom, so you can get by with one small window, for example, if its area is 17 m², then one window 116 x 114 will be enough.

In the kitchen, rectangular windows of an elongated shape should be installed (the horizontal side is longer than the vertical), the height of the window sill should be at the level of 100-120 cm from the floor. It will be great if you look at the kitchen furniture in advance - this will give you the opportunity to choose the height of the window sill that is level with the kitchen cabinets. In this case, the set will fit better into the interior of the kitchen.

As for the bathroom, it is desirable that there is a window there too. However, its lower slope needs to be positioned higher. This way, it won’t take up valuable wall space that could be used for the same mirror or shelf, and it won’t allow you to look into the bathroom from the outside. But not too high, otherwise such a window will be inconvenient to open and clean.

Don't forget about the natural lighting of the stairs. For this, not only windows, but also glass blocks can be used. On the landing it is appropriate to place a window of a non-standard shape, for example an elongated arched or round one.

Insolation factors

First of all, the intensity of insolation depends on where the window is oriented (meaning the side of the world). At sunrise, direct sunlight penetrates deeply into the room, since their angle of inclination is small. At the same time, a room with windows facing east never overheats, since the rays at this angle slightly heat the surfaces.

South windows provide the longest insolation. Therefore, on the south side of the building they try to place a veranda, loggia or balcony, making maximum use of sunlight to insolate the room. On such windows, awnings and blinds are appropriate to regulate the intensity of insolation to avoid overheating of the room. For these purposes, horizontal canopies are suitable, which will partially shade the window in the summer, and in winter, when the sun does not rise high, will have virtually no effect on the intensity of insolation.

When planning roof windows, it should be taken into account that even with a small area in the summer, direct sunlight will penetrate into the room for a long time, leading to overheating of the room. A light spot formed on the floor, for example, in an attic, will become very hot (sometimes up to 60° C) and act as a heating radiator. Blinds, roller shutters and awnings in this case provide regulation of lighting intensity. In smart home systems, such adjustment occurs automatically.

Western orientation of windows can provide no less insolation than southern orientation. Rooms with windows facing west, as well as those with a single-layer western wall, tend to overheat in the summer. It is better to make low windows in them so that the sun's rays do not penetrate deep into the room. To reduce insolation in this case, it is best to use perforated blinds or roller shutters.

Those facing north do not provide insolation, since direct sunlight never penetrates through them. For the same reason, rooms in the northern part of the building require more powerful facade insulation. Through the northern windows, only reflected light enters the room, but it is not worth compensating for the lack of natural light by increasing the window area: large heat losses will be inevitable.

All hope is for the double glazed window

To ensure the best thermal insulation properties of double-glazed windows, their manufacturers use various tricks. Between the glass of the simplest and therefore inexpensive double-glazed windows there is simple air. It is considered a fairly good thermal insulator, but not the best. In more expensive models, an inert gas (argon, krypton, xenon) is pumped in or a vacuum is created. There are also special heat-saving double-glazed windows, the glass of which has a special coating applied to it, reflecting most of the IR radiation back into the room. Double-glazed windows, which consist of three glasses, also help reduce heat loss. Technologies that increase the service life of a double-glazed window, all kinds of energy coatings and tinting cannot but affect the final cost of the window.

Large windows facing south or west should be equipped with special double-glazed windows that protect the room from overheating. In such double-glazed windows, two types of glass are used: reflective and absorbent.

• Reflective glass has a metal coating that provides reflection of the sun's rays.
• Absorbing glasses are made from tinted glass mass.

Double-glazed windows with reflective or absorptive properties become 20% more expensive.

Since the conversation has already turned to the technology of double-glazed windows, it is worth touching on the topic of sound insulation and safety. If your windows face a busy street, then you should choose special sound-absorbing double-glazed windows, which can also perform energy-saving functions. The sound-absorbing properties of such double-glazed windows are given by a design of three glasses, between two of which there is a special film. Sound insulation will increase the cost of the window by another 15%.

If you want to install a double-glazed window with increased safety, the glass of which, upon impact, crumbles into small pieces with non-sharp corners, then it will cost you 30% more than usual. Such double-glazed windows are usually ordered for large window sizes.

There are glasses that make windows difficult to break into - these are triplexes. They consist of two tempered or laminated glasses, which are connected by a reinforcing film. Double-glazed windows with triplexes cost 50% more than regular ones.

Heat saving requirements

Thermal insulation of buildings requires that the window's R-value (R) matches the climate zone. For central Russia, this figure should not be less than 0.5 m² °C/W. Otherwise, heat loss will be significant. On the other hand, the higher the R value, the less you will need to spend on energy to heat your house.

When choosing windows from large manufacturers that are assembled using proprietary equipment in the factory, you don’t have to worry about their compliance with domestic standards. For most of these windows, the R value is in the range of 0.6-0.8 m² °C/W, which fully meets the standards for thermal insulation of buildings.

Windows of non-standard shapes

If the design of your house requires the installation of windows of a non-standard shape, then you need to be prepared for additional expenses, since any shape other than rectangular will increase the cost of the window. In addition, such windows will be more difficult to order and you will have to wait longer for their production.

And yet, if desired, you can get a window of any shape, be it an arch (regular or Gothic), an oval, a circle, and even a “bull’s eye” - it is installed in lucarnes. Naturally, non-standard windows will cost more than regular ones, sometimes three times more (bull's eye). The cheapest windows are trapezoidal or triangular in shape - only 45% more than usual.

What cannot be done from PVC profiles can most likely be done from wood. Therefore, for purely technical reasons, you should not refuse non-standard windows. This choice depends more on the financial capabilities of the customer.

A window is one of the main elements of any room, influencing the creation of coziness and comfort. Most people understand by these concepts a bright, warm room in which peace and quiet reigns. However, this effect can only be achieved with the help of a high-quality window that does not let street noise into the room and does not release heat to the street.

Plastic windows have become the most popular designs. Due to the development of popularity, many varieties of plastic windows have been developed.

Plastic windows have a number of advantages - low cost, resistance to moisture and other natural phenomena, and no need for additional care. To choose a truly reliable and convenient window, you need to familiarize yourself with the types of available designs.

What does a plastic window consist of:

1. A frame is an element that is attached to a window opening in the wall of a building. It completely follows the shape of the opening, so the frame is manufactured individually in accordance with the shape and size of the window opening. The frame is made of metal-plastic profile.
2. The window sash is the movable part of the window, attached to the frame by means of hinged awnings. There may be several sashes on one window. It depends on the individual preferences of the customer.
3. A double-glazed window is several glasses located parallel to each other and hermetically sealed together. Double-glazed windows are inserted into the frame and sashes of the window. The number of glasses and their thickness are selected individually, depending on the customer’s preferences. There are single-chamber, double-chamber and three-chamber double-glazed windows.
4. Glazing beads are plastic strips that hold double-glazed windows in the seats of the frame and sashes.
5. – these are mechanisms for opening and closing window sashes (hinges, locks, handles, etc.).
6. Window seals seal the joints between window structural elements.

All plastic windows consist of the listed elements, but their individual design, quality and physical characteristics make it possible to create windows that are radically different from each other.

Main technical characteristics of plastic windows

The reliability and functionality of a window depends on the technical features of each individual element. There are standard ready-made window configurations for those who do not understand the features of their design.

But you can arrange all the elements at your own discretion, and for this you need to understand the features and types of components.

A metal-plastic profile is a reinforced PVC from which the supporting frame of the window (frame and sashes) is created. Main technical characteristics of the profile: heat transfer, profile width and number of chambers in it.

Metal-plastic profile parameters:

1. Chambers are partitions inside a metal-plastic profile; each chamber has its own purpose. The most common is the three-section profile. One section gives rigidity to the structure, the second drains condensate, and the third is needed for attaching fittings. However, there are four, five and six-chamber profiles. The number of chambers directly affects the thermal conductivity of the window frame, because each section is filled with air, and it is a poor heat conductor.
2. Increasing the width of the profile allows you to increase the air gap in the chambers, and also makes it possible to install thicker glasses and double-glazed units, and this, in turn, provides more reliable protection from external noise and heat loss.
3. Heat transfer is a value that characterizes the profile, taking into account all the advantages and disadvantages of the design.

Double-glazed window

A double-glazed window is several glasses connected to each other, creating air chambers between them. It can be single, double and triple. The glass itself can also have different thicknesses.

Double-glazed windows come in various types:

1. – the inner glass is coated with silver atoms, which ensures heat reflection from radiators and reduces heat loss.
2. coated with a light-absorbing substance.
3. Impact-resistant double-glazed windows are treated with a special resin, which increases their strength.

How does changing glass parameters affect the reliability of the window:

1. The number of glasses in a double-glazed window provides better thermal and sound insulation. However, a large number of glasses with strong noise can get into resonance from vibration, which is a source of noise and destruction of the window structure.
2. The thickness of the glass in a double-glazed window directly affects the thermal conductivity and sound insulation of the window. The thicker the glass, the better the insulating properties.

Triplex has the best insulating properties - it is ordinary glass coated with a special transparent film, which increases the strength of the glass and other physical characteristics.

Types of plastic windows

There are several types of plastic windows, differing in certain characteristics:

1. Window shape. This parameter is determined by the shape and size of the window opening. There are round, square, triangular and other windows.
2. The color of the window is also determined by the individual preferences of the customer. The most common colors are white, brown and other colors that imitate expensive types of wood.
3. The type of sash opening is selected individually. There are the following types of opening: tilting (fanlight), rotary (traditional), tilt-and-turn (complex) and bobbin-type (sash-to-sash type of closing), sliding, rotary-sliding. The window can also have no sashes at all - a blind window.

Rotary opening of the window is carried out due to vertical awnings. The disadvantage of this method is that the sash has a large swing (takes up a lot of space) and there is no possibility of adjusting the air flow - the window can swing open under the pressure of the wind.

The folding mechanism allows you to open the sash slightly, tilting it slightly - this ensures smooth ventilation of the room, while the window is practically closed.

Tilt-and-turn plastic windows are equipped with a mechanism that allows you to open the window in two different ways - traditional and tilting.

The sash-to-sash splint opening provides a large open space when both leaves are open.

Sliding windows move on rollers along the plane of the window (as in a wardrobe). This mechanism has the excellent advantage of saving space.

Tilt-and-slide windows open slightly towards themselves and then slide to the side. This option is much more convenient than traditional opening.

Which plastic window design is the most reliable?

The most reliable plastic window is considered to be a design that provides the best thermal and noise insulation. If you have an unlimited budget and use every opportunity to improve the characteristics of the window, you can assemble the following design:

1. A six-chamber metal-plastic window profile with a width of 90 mm is used for the supporting structure of the window.
2. Insert a triple-glazed unit into the profile, the chambers of which are filled with inert gas to improve the insulating properties of the window. For even greater insulation, you can use triplex, energy-saving and tinted glass.
3. Install sashes with a complex mechanism that allows you to open the window in a tilting and turning manner. If you need to save space, you can install a sliding sash.
4. It is better to choose a plastic window among the most well-known brands: Veka, KBE, Rehau, etc.

Even the best plastic window will not be reliable and durable if it is installed incorrectly. Therefore, it is better to contact a well-known company that employs qualified specialists.

Some features that should be taken into account when designing a plastic window:

1. If you increase the number of chambers in a profile, then you must definitely increase its width; if this is not done, then the desired insulating effect will not be achieved. For example, for a three-chamber profile the optimal width is 60 mm, for a six-chamber profile – 90 mm.
2. To increase the sound insulation of double-glazed windows, but avoid vibration resonance, you need to alternate the thickness of the glass. For example, take the thickness of the outer glass to be 8 mm, and the next one to be 4 mm, and so on.
3. The window fittings must ensure a tight fit of the sashes to the frame and provide the possibility of adjustment.

When operating a window, most of the heat comes out through the glass surface rather than through the frame, so there is little point in installing an expensive six-chamber profile. And in the case of a double-glazed window, it is better to install a two-chamber version with alternating glass thicknesses, but increase the distance between the glasses.

If you stock up on information, it will not be difficult to make a reliable choice of a plastic window. The main advisers on choosing high-quality and durable products are certificates and technical specifications. After all, sellers can embellish the benefits of a product.