A double-glazed window is cracked: reasons, what to do? What to do if the window glass is cracked What to do if there is a crack in the glass unit.

Double-glazed windows are one of the most important components of modern metal plastic window... It is they who give the very properties due to which new windows are installed - depending on the configuration of the glass, they have different properties (protective, reflective and energy-saving), their number affects the isolation of the room from the outside world. They consist of a certain number of glasses, between which they are sealed closed spaces with inert gas.

It is the double-glazed windows that are the most expensive and vulnerable elements. metal-plastic windows, their damage causes certain difficulties in the operation of the living quarters and the windows themselves, and replacement or repairs cost the owners a penny.

First reason

Chips or cracks are the most big problem of these window elements.

Incorrect manufacturing techniques are very common among new, inexperienced or unscrupulous manufacturers. When a double-glazed window is installed in a finished frame, special gaskets which are designed to hold the structure inside the frame and seal the window. Incorrectly manufactured or can create uneven pressure on the glass units, from which deformation and damage may occur during operation.

The second reason

Old buildings - and installation in them is very common - have a very unpleasant tendency to sit down. This applies not only to old buildings, shrinkage can also occur in a new building, during the construction of which technological errors were made, and it did not survive as it should. As a result, a geometric deformation of the window opening is obtained, which has sufficient pressure on the tight-fitting frame. The glass unit bursts as soon as the pressure on it exceeds allowable limit... The mechanical elements of the structure and the frame itself are also damaged.

If the building is very old, it has fragile walls or cracks are spreading along the facade - be prepared for the fact that the double-glazed window will not last a whole year. Possible option is the strengthening of the walls and facade. Let new buildings stand for at least a year before installing windows.

Reason three

Even a very durable one, which is used to create a double-glazed unit, will not withstand sudden temperature changes. They can arise in several cases:

if in regions with very severe frosts glass that was not intended for such conditions were used, the temperature difference from the street and inside the room with a thin glass unit will inevitably lead to depressurization and damage.
the air conditioner can blow cold air on the upper part of the glass, and the sun can shine on the lower part on a hot summer day.
a hot saucepan placed very close to the glass.

Use high-quality glass from a trusted manufacturer, select designs for the temperature region, carefully monitor various factors that affect glass.

Reason four

Negligence by installers can cause the anchors to improperly hold the frame, pushing it apart or compressing it too much. When the frame is deformed, constant negative pressure will be exerted on the glass unit, which will eventually destroy it and lead to depressurization and the formation of cracks.

For the installation of windows, it is advisable to hire workers - representatives of the company from which the windows were ordered. In this case, the installation will be carried out by certified specialists who will not make such mistakes (read about the choice of a company in paragraph 1, most often it is this factor that guarantees the absence of problems not only with double-glazed windows, but also with windows in general for a rather long period).

Reason five

Strong vibrations have a very negative effect on the integrity of tempered glass. Impact occurs on heavily busy streets with big amount cars and pedestrians, with rare exceptions - low-flying planes and helicopters. Vibration is transmitted along the walls of the building and negatively affects the windows in general. Aggravating factors are the installation not of metal-plastic, but of options, because metal conducts vibrations much better. Plus, if you add improperly manufactured and installed seals (see point 1), the result of vibrations will not take long, and even a month will not pass before the residents will find unpleasant damage to the windows.

The decisive factor is the use quality materials verified by the manufacturer. If the streets outside are really very noisy, then you should consult the company where you will order windows about this. You may be offered softer spacers, stronger glass, or a different frame design.

Reason six

Marriage is one of the most common causes of unpleasant consequences during operation. A double-glazed window may initially come with small cracks or chips, they can form during illiterate transportation or installation, and all of the above factors will only aggravate the problem.

And again - a proven manufacturer. Before you accept the manufactured structure and the work itself, you must carefully and carefully examine everything. Do not be afraid to find fault - you have already paid money, demand quality at all stages.

Using a damaged glass unit is pointless, because it loses all its insulating properties and threatens to fall out of pieces of glass. If the window is under warranty, then you need to contact the installer. You also need to contact him even if the warranty has ended, the company's specialists know exactly how to properly make a new double-glazed window, remove the old one, etc.

Despite the seeming simplicity of removing the damaged element, it is better not to do it yourself, there is a high probability of damaging the frame or missing a heavy glass unit on the floor, which will lead to the formation of a huge number of fragments.

Conclusion

The first step is to exclude all factors that can lead to damage. Choose a trusted manufacturer, demand quality in manufacturing, transportation and installation

When new plastic windows are installed in the dwelling, the residents are overwhelmed with joy, and the premises immediately become brighter, more cozy and more comfortable. But, unfortunately, there are often cases when a crack appears on the glass unit for some reason. Such a phenomenon will not please anyone. The first question the owner asks: why did the glass break? Please note that urgent replacement of a double-glazed window is carried out by specialists at the link to the site http://oknovita.ru/.

Causes of insulating glass cracks

There can be several reasons for the appearance of cracks in the window glass. Here are the most popular ones:

Glass defect.
Skewed frame.
Temperature drops.
Mechanical damage (shock).
Installation errors.

Any of these factors can provoke the appearance of a crack on the glass unit of a plastic window, and if they are present in combination, this risk increases several times.

What to do if a double-glazed window burst

Some owners of plastic windows, having discovered a crack in a glass unit, panic. Unknowingly, they think that they have to completely replace the window, and this is another repair, all the inconveniences that it entails and, of course, unforeseen financial costs. But this is not at all the case. If the glass in the plastic window is cracked, it is enough to replace just the glass unit. You can, of course, go the other way and replace only the damaged glass. But this method has significant drawbacks:

this work is quite time consuming;
it takes a lot of time to replace one glass;
it is necessary to find an identical glass;
the tightness of the double-glazed window is broken, which will lead to the accumulation of condensate inside it (perhaps this drawback is the most unpleasant).

Glass unit replacement process

Replacing a damaged glass unit with a new business is very time consuming for those who are not familiar with such work. But for a specialist, the whole process will take a few minutes. Therefore, it is better to entrust such a procedure to a master who knows his job.

The first step is to remove the glazing beads from the window. For this, a wide chisel or a boot knife is used. Now the glass unit is removed using a plastic spatula and special suction cups. The adjustment shims must first be installed in the fold. Highly important point: the backing must be located under all glass panes of the insulating glass unit. If the replacement takes place in a blind sash, one adjusting pad is sufficient, which is located in the middle.

When replacing a double-glazed window in an opening sash, two pads are used, which are installed with an indent of 10 cm from the edges. Then the glass unit must be aligned around the perimeter of the sealing rubber, for which the same plastic spatula is used.

The next stage is the installation of glazing beads, which is carried out in reverse order... If, during dismantling, the long ones were first removed, then the installation should start with the short ones. Here you need to use a mallet or a plastic hammer.

The service was rendered poorly - what to do

Many clients of firms engaged in the installation or repair of plastic windows faced the problem of poor-quality service. It is quite clear that the customer wants to receive partial or full compensation for the actions of careless craftsmen.

Plastic windows (double-glazed window burst)

But not everyone knows what needs to be done for this.

First, a client dissatisfied with the service must file a complaint in which he must indicate his claims and demand replacement or material compensation for the damaged property. The complaint must be completed in the entire form, that is, it must contain the requisites of the defendant, the name of the applicant, date, basic requirements.

The document is written by hand in two copies; copies of receipts or warranty coupons must be attached to it. The originals remain with the applicant. It is best to first try to resolve the conflict directly with the respondent firm. But the customer's claims are not always satisfied peacefully.

If the company does not admit its guilt and refuses to compensate, the client must apply to the consumer protection society with his complaint, which will appoint an independent examination. In the event that the results of the examination are on the side of the plaintiff, he can apply to the court and, by his decision, receive appropriate compensation for the material damage received. In some situations, it is possible to file a claim for compensation for moral damage.

Repair of a broken glass unit

If the glass in the glass unit is cracked at the plastic window, then you should not despair. This damage can be repaired. If you contact a specialist, then the work will be carried out as soon as possible. In winter, this damage is worth paying Special attention, since the room will penetrate cold air, ice may form on the glass. At the same time, it should be borne in mind that during the work itself in the house, you will have to endure a drop in temperature for some time.

The causes of cracks

The reasons for the appearance of cracks on double-glazed window all sorts of factors can become. The most commonplace is mechanical damage... Accidental impact can lead to cracking.

Improper installation of the plastic window may become the cause of damage. If, during the assembly of the window, the glass unit was installed in the frame incorrectly, with an offset, then this can lead to excessive load. This, in turn, leads to cracks. Also, if the frame itself, when installed in a window opening, was installed crookedly, then this may cause damage.

How to properly install a plastic window, read the article Installing plastic windows: tips and tricks.

If the glass in the plastic window bursts, the damage can be caused by thermal shock. This phenomenon is observed in the case of uneven heating of glass in the event of a sharp temperature drop. The pressure difference can also lead to glass cracking.

If you close and open a window with strong pressure, constantly slamming, then this also leads to a decrease in the strength of the glass, up to its cracking. Therefore, respect for the design is important.

Only a master can determine the exact cause (with the exception of mechanical damage). For this, the glazing beads are removed from the window structure and the window is examined.

If the inner glass is cracked, then everything is clear without the advice of the master. Such a defect manifests itself only in the case of poor-quality plastic window manufacturing or if it is incorrectly installed.

Cracked glass repair

Most reliable way repairing a crack in the glass is a replacement for a glass unit. It is recommended to replace the entire glass unit. This is due to a number of reasons:

Replacing only one glass is a very difficult job that requires a significant amount of time: the glass must be separated from the glass unit, a similar material of the same thickness and dimensions must be found, and then glued.
After removing one glass, the tightness of the glass unit is broken. Inside it is silica gel, which loses its properties after the system is depressurized. This will lead to the fact that condensation will constantly form inside the glass unit.

When replacing a double-glazed window, these problems are excluded. The master immediately determines the thickness and size of the glass unit, selects an analogue for it. Then a new node is installed.

However, in winter, this method is accompanied by a number of difficulties. As a rule, replacement requires a certain amount of time: inspection, departure of the master to the warehouse, selection of glass, return to the installation site and the installation itself. In severe frosts, this can lead to strong cooling of the room. However, there is no other way.

If the warranty period has not yet expired for the plastic window, you should contact the company that installed the window. This is especially true if the damage appeared due to a manufacturing defect or poor-quality installation of a plastic window. In such cases, repairs must be carried out free of charge.

Replacing only one glass unit is also cheaper than replacing the entire glass unit. And if you repair double-glazed windows with your own hands, then you just need to spend money on the material. However, the quality of the work done will be questionable. In addition, the likelihood of maintaining the tightness of the structure will definitely be excluded.

Some companies remove the entire glass unit and replace one glass in a production environment. In this case, special equipment is used, which allows further drying and re-sealing of the glass unit.

If you have small crack, then the winter can be lived with a cracked glass unit.

Why is the glass unit cracked?

A small crack can simply be sealed with transparent tape. This method is short-lived, but with a small defect it is quite acceptable. And it will allow you to survive the winter with a comfortable indoor temperature.

For more information about the design of plastic windows and its elements, read the article How to choose the design of a plastic window.

Damage prevention

Cracked glass is costly, time-consuming and labor-intensive to repair. In order not to burst the glass unit, it is necessary to prevent the possibility of damage. Of course, it is impossible to protect the window from accidental mechanical damage. The only option is to use shock-resistant glasses. Tempered glass or triplex can be installed in a glass unit. Such materials will last a long time and reliably, you need to make every effort to break such glass. It is much easier to limit yourself from other factors.

You need to order a window from a reliable company. You can learn about it from relatives and friends, according to consumer reviews, etc. The production of plastic windows in such companies is well established, which minimizes the production of structures with manufacturing defects. Qualified specialists will carry out the work in full compliance with the installation technology. In addition, products and services are warranted.

During operation, the sash must be opened and closed smoothly, without impacts or sudden movements. If over time the flaps sag a little, then they should be adjusted. It is also worth lubricating the mechanisms of the structure, due to which the windows will work efficiently. No additional effort is required to open them.

Do not heat the window too much, direct it at it hot air... For example, if you are working with construction hairdryer then contact with the glass should be avoided.

Also, find out the rules for the care and operation of plastic windows in this article.

Thus, it is not only possible, but also necessary to repair cracked glass in winter. Decide which repair option fit better all and with the involvement of what forces it will be carried out, independently or with the help of qualified specialists.

What to do if a crack appears in the window

A double-glazed window is separate part a wooden window in which the glass is hermetically welded. In the event of a crack, the tightness is broken and it is economically unprofitable for the customer to repair it and it is easier to replace it. Possible reasons the appearance of cracks on the glass:

Mechanical impact. This is the most common cause of cracks in windows. The crack may not appear immediately after the impact. And a crack from the side of the street may appear due to a branch or some object that was thrown by the wind.
Temperature difference.
Why do double-glazed windows burst from the heat?

If the crack has formed due to this reason, then the company that installed the structure is most likely to blame. she chose the wrong installation method, not taking into account the climatic conditions of the area.
Artificial temperature difference. This can occur if in winter time years, with a minus on the windowsill boils Electric kettle, thereby artificially obtained a large temperature difference with different sides double-glazed windows.
Offset walls. When the house shrinks, there may be problems with the double-glazed window in houses made of timber or logs. In these cases, the window is made taking into account further shrinkage. The problem can remain only if the glass unit was made with a mistake in the forecast for shrinkage. Installer companies usually warn about possible problems associated with shrinkage.
Installation error. This is usually not immediately apparent, but it can also cause cracks and other window problems.

If you see a crack in your glass unit, which appeared through no fault of yours, first check whether the warranty period for construction and installation has expired. If the warranty has not ended, then you need to contact the company that was engaged in the installation.

If the warranty period has expired, you will have to repair it on your own. It will no longer be possible to close the crack, because the double-glazed window was depressurized and got into it wet air and the window will no longer fully fulfill its functions. For repairs it is necessary to replace the glass. You can do it yourself or contact the company for glass replacement and necessary repair actions. If you do not know about the devices of window constructions, it is better to call a specialist. First, you need to determine the reason for which the window cracked in order to avoid repetition, and then proceed with the repair.

What to do if condensation appears inside the glass unit

If condensation or, in other words, moisture appears inside the glass unit, for example, after rain, then you need to contact the manufacturer or the company that performed the installation, because the tightness of the double-glazed window was broken. Complex diagnostics will be required to determine the cause. Actions need to be taken depending on the results of the diagnosis. One of the reasons for this trouble may be a manufacturing defect. In order to remove this moisture, a desiccant is poured into the glass unit. The manufacturer may have miscalculated required amount desiccant. It is not worth delaying with this - with the onset of frost, ice may appear inside the glass unit. Unfortunately, this problem cannot be fixed at home.

If the condensate has formed due to the low thermophysical properties of the window, i.e. glass and profile do not warm up enough. In this case, you will have to replace the window with another wooden one or replace the double-glazed windows with double-glazed windows with a top coating (which reflects heat), which will be a cheaper option. If indoors high humidity, then this can also be the reason for the appearance of condensation inside the glass unit, then it is enough to ventilate the room more often.

In case of an installation error, moisture inside the glass unit does not appear over the entire area of the window, but in narrow stripes. This is solved by gluing the seams that allow air to pass, using polyurethane foam, or dismantling the window. We'll have to remove it, clean it from the remnants of the old polyurethane foam and install it again.

What to do if you find bubbles and scratches on the glass unit

If in installed window if you find bubbles, then do not sound the alarm ahead of time. There are standards according to GOST, according to which a certain number of bubbles is allowed inside the glass unit. If the number of bubbles exceeds allowable rate, then it is worth contacting the manufacturer for a replacement, because this is a manufacturing defect and the glass unit must be replaced under warranty. If after installation you find scratches in the glass unit, then it must also be replaced under warranty, scratches are not allowed for any brand of windows.

What to do if you find stains on the window

If you find iridescent streaks or spots on the window that look like glare on water that has gotten oil or gasoline, then most likely the glass was poorly rinsed during assembly. The surface of the glass can be contaminated during manufacture, for example, with oil or a special liquid, which should have been removed immediately before the assembly of the glass unit. In the event of such stains, the glass unit must be replaced under warranty.

The appearance of rainbow spots and stripes is possible for other reasons:

Corrosion of the glass surface. Occurs due to improper transportation and storage of glass. Must be replaced under warranty.
Glass flatness defect. Rainbow stripes are visible on double-glazed windows with a special tinted coating, appears when the glass tempering technology is violated. If such stripes exceed the deviation allowed by GOST, then the manufacturer must replace the glass unit.
Stains on the underside of the glass are also considered a manufacturing defect.
Small iridescent spots, like "leopard skin" on hardened windows, visible under certain acute angle are not considered a defect.
Rainbow rings on the glass surface can appear due to the deflection of the glasses. This can happen if the technological processes in the manufacture of a double-glazed window. It is considered a defect and must be replaced under warranty, because the thermophysical properties of the window will deteriorate.

As you understand, there are quite a few reasons for the appearance of stains on a double-glazed window, mainly due to a product defect and is subject to warranty replacement. In each case, diagnostics will be carried out.

Hide

Unpleasant enough, but frequent problem faced by the owners of apartments and houses is the damage to the double-glazed window . Even a small crack can significantly reduce the comfort of staying in the room: cold air will begin to enter the room, the window will freeze in winter, and will not be able to contain the noise. It is not necessary to completely change the window structure if the glass unit is cracked: the replacement can be carried out separately.

What to do if a crack appears?

Why can chips and cracks appear?

If the glass in the glass unit is cracked, the reasons may be different. The most common is mechanical damage: most often, such a crack is located on the outside of the window. This means that someone threw a stone or some not necessarily large object accidentally hit the glass, resulting in a crack. V rare cases birds can crash into the glass.

From the inside of a glass unit, such damage usually occurs with careless handling, for example, if there was a heavy flower pot, which was inaccurately moved and hit the glass. If such one was filled with gas, it will have to be changed, since it will lose gas, and with it all its qualities. There are other reasons for a cracked glass unit. These include the following:

Pressure on the glass with any object or when opening.
Incorrect assembly during manufacture.
Deformation of the window frame.
Incorrect installation or incorrect size, as a result of which there is a leakage of the product.
Sudden changes in pressure and temperature outside.
The big difference between temperature regime outside and indoors, while the room gets very hot.

If the mechanical causes of damage do not cause questions, then the rest should be considered more carefully.

How to prevent glass damage?

In order for the double-glazed window to last as long as possible and not to crack from accidental influences on it, you can take a number of measures that will help extend the life of the product. First of all, when choosing a window structure, you should not chase after cheapness: the thinner the glass and plastic, the lower the cost of the structure, but also the higher the vulnerability. Thin glasses can react to the slightest load and crack, they freeze easily, since an insufficiently thick frame is not able to retain heat sufficiently.

Make sure that the glasses do not touch each other: this can lead to sad consequences. When ordering a double-glazed window or the window itself, measure the space several times or invite a specialist from the company where you will order the product. This will protect you from mistakes, in addition, in the event of a defect on the part of the company or an incorrect measurement by a specialist, you can demand a free replacement of the double-glazed window with a new one.

Often, curved walls or shrinking houses can put pressure on the window frame. It can deform strongly or, conversely, imperceptibly to the eyes, but this is enough to render the structure unusable. In order not to crack a double-glazed window, reasons of this kind must be eliminated immediately. To do this, they usually strengthen the window opening, preventing the structure from sagging, or they do not put windows in the house under construction, but wait until it shrinks.

At sub-zero temperatures outside, indoors they begin to use heating devices... If you heat a room too quickly and too much, the thin glass can crack. In order to avoid this, it is advisable to initially order double-glazed windows with tempered glass. In addition, the room must be heated smoothly: this is especially true for houses heated with a fireplace or wood stove... The room should not be allowed to cool down to outside temperature, as the windows do not like such differences.

The crack may not be immediately visible. With pressure on the structure, it can form for a long time and be invisible to the naked eye. Pay attention to the location and shape of the crack: if it appears in the center of the glass unit and has the shape of the letter C, this means that the glass unit was stored incorrectly by the manufacturer, and the room was not heated.

How to replace a glass unit?

This is easy to do: just bend the glazing beads holding the structure and pull it out rubber seal, after that you need to order a new glass exactly the same size as the damaged one. To insert it, it is enough to return the glass unit to the seal, insert the glazing beads in the same order in which they were located.

A double-glazed window will last a long time if it is chosen correctly, installed, and handled carefully. In the event of cracks, this product cannot be repaired and is completely replaced.

Plastic windows are not at all uncommon; they are installed almost everywhere, in private houses, apartments and other premises. And this is not surprising, since they possess good characteristics and by installing a window, most hope for a long service life.

However, various troubles can happen, for example, a double-glazed window can burst. There may be several reasons for this.

1. Causes of cracks in a glass unit

Very often, the window may not be defective at all, new, and the glass unit may not cause any complaints, but a crack may form.

The reasons for the fact that a double-glazed window has burst, may be:

Temperature fluctuations. In most cases, if there is a strong temperature difference between interior and the external environment, this can negatively affect the strength of the product. In any case, the glass can begin to bend inward or vice versa outward, which leads to the formation of a crack. In addition, a very low pressure in summer period and too high in winter.
Mechanical impact from a person. Very often people tend to put a large number of pots of flowers on the windowsill, and in one wonderful moment they can be inaccurately moved or dropped, which will lead to a glass crack. In addition, excessive force when closing or opening the window may be the cause.
Loads from the construction of the house. Quite often, installing plastic windows in new house, windows can crack, as the house shrinks for a certain time, window frame squeezed and a crack occurs. In addition, old houses are also no exception, the walls in them can deflect and create pressure on the frame, which will also lead to a crack.
The fall of various debris during strong wind and other atmospheric phenomena.
Incorrect window installation or factory defect. In case of improper installation, the window structure may be skewed, or some inaccuracies could be made in the manufacture of the window.

There are other factors that are very rare, such as overheating of the window.

2. How to prevent yourself from cracks in a glass unit?

In order for the window not to crack, it is necessary to determine in advance the factors that can affect this and prevent them in advance. In addition, there are a number of rules that can reduce the risk of a crack in the window:

When ordering a plastic window, you need to know that the ratio of the frames should not be more than 5 to 1.
When installing a window, it is important that the temperature in the room is not lower than 5 degrees, otherwise it is fraught with consequences.
When using the window, it is necessary to ensure that no significant mechanical stresses arise.

3. What to do if there is a crack in the glass unit?

In most cases, the window manufacturer is to blame for the appearance of a crack, therefore, at the slightest crack, you must immediately contact the company that manufactured this window and carried out the installation. If the warranty has not passed, then the company must send its representative, who will determine the cause of the crack in the glass and replace the glass unit. In this case, the glazing bead must not be removed from the window, since if it is damaged, the warranty will be canceled.

If the guarantee for the window has long passed and a crack has occurred, then it is necessary to replace the full glass unit by ordering it in size and paying money for it, or to repair the crack with your own hands.

Is it possible to live the winter with cracked glass unit ? It is possible only if the double-glazed unit is two-chamber or more. In this case, the window will not fully cope with its functions, but it will not let the cold through much.

3.1. Do-it-yourself double-glazed windows repair

If there is no time to repair a double-glazed window, then you need to do the following:

This allows you to prevent moisture, dust and dirt from entering the glass unit through a crack in the glass, and will allow you to repair the glass unit in the future without much effort.

When the time appears, you can start repairing a broken glass unit... To do this, the first thing you need to do is order 4 mm cut glass required sizes... Then you can start disassembling the glass unit and replacing the glass:

Conclusion, conclusion

If broken glass in a plastic window, do not rush to extremes, you need to look at the window guarantee or not, and if there is still a guarantee, the manufacturer must produce free repair double-glazed window, or replace it with a new one.

From the article you will learn:

For several decades now, in terms of sales, plastic windows have firmly held the leadership among all types of light-transmitting structures. Glazed PVC double-glazed windows the room is less noisy, it retains heat better, and the window opening takes on an eye-pleasing appearance.

However, over time, due to various reasons, certain defects may appear on plastic windows, for example, cracks. Violation of the integrity of the structure, as a rule, occurs in two places: either on the frame or on the glass. Quite rarely, cracks appear on window sills and on slopes.

If damage is found, the owner of the home will have to decide (guided by the degree of their "severity" and "wallet thickness"), which is better - to repair the defective component, or to completely replace the window with a new one.

In this article, we will consider the most common causes of cracks in a plastic window, and also describe what needs to be done to eliminate them.

The most common reason for the appearance of such defects, both on the frame and on the glass, are deviations from the standards determined by GOST, allowed when installing light-transmitting products. Defects can manifest themselves a few days after the end of installation, and maybe even after winter period when the window is significantly affected external environment: sudden jumps in temperature and humidity.

The main factor in the appearance of cracks associated with improper installation of the structure is a banal skewed window- the distribution of loads does not occur evenly, and therefore, when a certain value is exceeded, plastic profile may, simply, not withstand overloads and go cracks. A similar manifestation of defects is typical for, since having the same with windows standard sizes profile, the difference in the mass of the final product can be very significant.

Read also: Variants of micro-ventilation of plastic windows. Comb, fittings, valve

A crack in the profile of a plastic window is still half the trouble. The main problem is that this defect can spread to the glass, which can be “covered with a mesh”, or even burst.

The poorly performed work of the installers in the installation of windows cannot be remedied. In this case, you should consider the options: a) reinstalling the same window; b) purchase of a new light-transmitting structure.

Of course, the first option will be more profitable for an ordinary consumer, however, choosing it, it should be borne in mind that not every company selling plastic windows, after the expiration of the warranty, even for its product, will agree to its re-installation. The second case, namely the purchase and installation of a new window, completely solves the problem with cracks, but is by no means a cheap way out of this situation.

Not often, but still it happens that defects on the windows occur due to improper transportation by car to their destination. The window transportation technology is the same and is used everywhere - this is the so-called "pyramid". Uneven roads do their job when transporting windows - as a rule, double-glazed windows suffer the most because of them - glass cracks in them.

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In order not to discover unpleasant surprises after signing the acceptance certificate installation works, it is better for the owner to conduct a visual inspection of the light-transmitting structures delivered to the place in advance for the presence of cracks on them even before the start of work related to their installation.

This defect is not typical for structures installed in middle lane and in the southern regions of Russia, since in these regions there is no severe cold snap in winter.

Little-known manufacturing firms often do not include in their products the ability to withstand low outdoor temperatures... Therefore, among their products, you can often find specimens that, when used in the northern part of our country, simply go through cracks. Often the plastic profile or frame suffers.

This problem of a plastic window is solved only by completely replacing it.

To prevent cracking of the components PVC constructions whose fault is severe frost(from -25 C and below), it is necessary to choose a window model from renowned manufacturer: Rehau, KBE, Kaleva, etc. Moreover, it is desirable that it has in its composition and. Only then can we say with confidence that such a structure will not crack at low temperatures.

The defect, as a rule, does not manifest itself in the products of well-known manufacturers. As a temporary measure, the crack can be treated with a joint sealant. This step will be extended for some time. In this case, the owner must be ready at any time to spend money on the purchase of a new PVC structure.