What to do so that the windows do not cry. Plastic windows are crying: reasons, what to do? The two easiest ways to get rid of window “tears”

19.04.2020

Many of you are probably familiar with such a nuisance as fogging windows. This is a very common phenomenon, especially in apartments and rooms with disturbed humidity. And this phenomenon must certainly be fought, otherwise it will go into the stage of a global problem inside the apartment. Some inconvenience can also occur due to fogging of windows. As you know, windows and window-type surfaces are the coldest places in the room. So why are the windows crying?

This is due to changes in room temperature., resulting in the formation of condensate in the form of drops. There can be many reasons for sweating. If the window is old, there may be cracks in the frame that will let heat through, so the temperature between the panes will be different. If the window was recently installed, it may have been installed incorrectly, which also allows heat to enter. Consider a few cases and dealing with it.

A very common reason could be location of the battery and window sill. If the window sill is above the radiator, warm air accumulates under it and does not circulate along the window. In this case, the following steps must be taken: either shorten the window sill, or put the battery in another place. Pay attention to the location of the curtains, they should not hang close to the window sill and the battery, there should be at least a small distance. Also, the reason for the appearance of moisture can be indoor flowers, so it is better not to put plants on the windowsill, or limit their number.

Helps reduce air humidity good high-quality ventilation . If it is clogged and does not work well, this can also cause condensation - the so-called "weeping", so check all the ventilation hatches. good option to solve the problem with ventilation, the installation of an exhaust hood, preferably not one, will become.

As a rule, most windows fog up in the kitchen, as there is the highest degree of humidity in the apartment. After all, a stove, or a kettle, or other appliances that emit steam and moisture are constantly working in the kitchen. Therefore, when installing kitchen windows, it is better to use two-chamber windows or even.

Highly effective way in the fight against fogged glasses is commonplace ventilation. You can usually ventilate the room different ways, depending on the time of year and the weather. You can open all the windows and doors wide open and make a draft, five to ten minutes and the room will be ventilated. Or you can throughout the day, by opening the window for thirty to forty minutes several times a day. But no matter what ventilation option you choose, in any case, you need to ventilate the room every day, otherwise you cannot avoid fogging the windows.

If you have tried all of the above, and the windows still fog up, pay attention to the quality of the window itself and the quality of heating in the apartment. Due to poor heating in the apartment, sudden temperature fluctuations can occur, which will naturally affect the glass. Sometimes, most often, windows “cry” that are made of a thin profile, or that are not equipped with slots for ventilation.

Exist folk way dealing with fogged glass. It is necessary to wipe the glass with a solution of glycerin and alcohol in a ratio of one to twenty. To date, this method is perhaps the most effective. True, there are still various anti-foggers for car windows. At home, they also help well in the fight against misted windows.

Thus, in order to avoid problems such as constantly fogging glasses, it is necessary:

Firstly, to deal with excessive humidity in the room. It is necessary to try to lower the humidity as much as possible and not to allow it to increase;
secondly, make sure that the temperature between the panes is high enough. That is why it is better to install two-chamber or three-chamber double-glazed windows.

There is also a backup option from the "grandmother's piggy bank" for those who are already unsuccessfully struggling with this problem. Between the frames before the onset of winter, you can pour salt or soda. You can also dilute any shampoo in water and wipe the glass with this solution, which also helps to eliminate fogging.

But in any case, no matter which method you choose, you need to fight the crying of windows and you can’t let this problem take its course. Because in the end, this little nuisance can turn into a huge headache. As they say, it is better to cut the trouble at the root than to fight long and hard with a protracted serious problem. Therefore, it is better to try all the proposed means, in the end, at least one, yes, it will do, and save you from undesirable consequences.

Relatively recently appeared in our apartments, at first made a splash. After all, their advantages, such as excellent sound and heat insulation, beautiful appearance, ease of care, no need for regular repairs and seasonal insulation, were obvious to everyone. However, it soon became clear that their main property - tightness - is at the same time a big drawback, since it is because of it that plastic windows “cry”. What to do? There are several answers to this question, but before moving on to them, you should figure out why condensation forms on their inner surface.

What causes fogging of PVC windows

According to experts, in 99% of cases, plastic windows “cry”, because after installing them, the room turns into a hermetically sealed “jar”, where there is no ventilation that allows fresh air to enter the room, and exhaust air to leave it. In addition, water vapor emitted by residents and indoor plants, as well as resulting from household activities, is not removed from the apartment.

Why wooden windows don't sweat

Most often, those who installed plastic windows in their apartments consider them to be “guilty” of the fact that the humidity in the apartment has increased. How else? After all, condensation did not form on wooden windows or appeared extremely rarely and in small quantities. The fact is that the old-style frames had many small slots, which, together with the hood connected to a special shaft, formed a ventilation system that did not allow exhaust air and vapors to stagnate in the room. So today, changing wooden windows on more airtight ones, the owners violate the ventilation, and the plastic windows "cry". This is absolutely inevitable, unless, of course, additional measures are taken. In addition, sometimes double-glazed windows are not blown with hot air from radiators, which would prevent the formation of condensate. Reason is too wide window sill or the presence of "wrong" curtains and other objects that violate the natural convection in the room.

“Tears” on a double-glazed window as a result of poor-quality installation and design flaws

Are your plastic windows "crying"? What to do depends on the cause of this phenomenon. For example, sometimes it can be caused by non-compliance with the technology at the stage of window production or improper installation. Therefore, if you are sure that everything is in order with ventilation and heating in your house, and your windows are “under warranty”, then it makes sense to call the craftsmen from the company from which you purchased them and demand to check if everything is in order . By the way, if plastic windows “cry” (what to do will be described below) from the inside, then this is usually the result of marriage, or rather, insufficient tightness of the double-glazed window, and you can safely demand to replace them.

The two easiest ways to get rid of window “tears”

Does the above mean that you should not install double-glazed windows in your house? Everyone makes such a decision for himself, comparing all the advantages and disadvantages of both options, as well as familiarizing himself with the ways to get rid of condensate on their inner surface. For example, the most the easy way to get rid of fogging of PVC windows is regular airing of the premises. It can be done either by setting the handle on the frame to the ventilation position (if it is provided for by the design of a particular model), or by opening the windows for 5 minutes every 2-3 hours. It should be understood that the second option will lead to large heat losses and is not suitable for those who disappear all day at work. As already mentioned, one of the reasons why plastic windows “cry” is poor convection. To eliminate it, it is enough to make several holes in the window sill, allowing warm air to heat the glass and reduce the “dew point”, and you should also, at least in the cold season, abandon curtains and shutters mounted directly on the frame.

Why plastic windows "cry": what to do (photo)

In addition to those mentioned above, there are more radical measures that require some financial costs. For example, those who are interested in why plastic windows “cry” (you already know what to do so that the window sill does not interfere with convection) have probably seen photos in which oblong devices of incomprehensible purpose are installed on the window frames. These are ventilation valves that, without human intervention, provide ventilation of the premises. Moreover, there are models that operate autonomously, and they do not require power supply. The only thing that needs to be done in order for the valve to work as it should is to check and, if necessary, clean and repair the exhaust ventilation in the apartment. Moreover, there are models that can be installed on an already mounted PVC window.

Why plastic windows "cry": what to do (reviews on measures)

Despite everything, it should be recognized that double-glazed windows have a lot of advantages. Therefore, having found out why plastic windows “cry”, many do not refuse to install them, but take the necessary measures to eliminate the shortcomings. Judging by the reviews, the installation of valves allows you to quite effectively cope with the formation of condensate on the windows and at the same time does not violate the sound insulation of the premises. In addition, such devices have a low cost, which makes them accessible to everyone.

Some apartment owners prefer to solve the problem of high humidity by installing split systems. This is a good but expensive option. At the same time, you should make sure that the selected model of the air conditioner has the necessary function of drying the air if its humidity exceeds certain indicators.

How to choose the “right” plastic window

In order not to ask questions after repairs in the apartment why plastic windows are “crying”, what to do and who to contact, it is better to immediately install a model that will not be subject to condensation. First of all, it is better that it be with an already built-in ventilation valve, so that later you do not have to install such a device. Also, experts recommend giving preference to two-chamber models that are less prone to condensation in the edge zones, and check whether the micro-ventilation function is provided. In general, you should immediately refuse to purchase a double-glazed window if the guarantee for it is less than 5 years.

Now you know why plastic windows "cry". What to do - you also already know, it remains to choose a good exhaust valve and enjoy all the benefits of double-glazed windows.

Weeping windows are a fairly common problem among both apartment owners and owners of private houses. As a rule, the problem of condensation is encountered in the cold season. Many people think that only plastic windows cry, and old wooden ones bypass this problem. Deep delusion. If all the cracks are sealed in wooden windows, equipped with a good sealant and the blowing is completely eliminated, then condensate will form on them with the same efficiency.

Are you tired of walking around the house and wiping misted windows? Do you want to understand the problem and fix it permanently? This article will help you with this. No time for this? Contact the company Heat House. We deal with all kinds.

The proposed material will consider the reasons why plastic windows cry, as well as several ways to solve this problem. So, we're getting started.

Plastic windows are crying a lot: who is not to blame?

First of all, I would like to immediately mark the innocent. Installing plastic windows, people spend a lot of money. Naturally, in return you want to get coziness, comfort and warmth in the house. Well, there is no desire to associate plastic windows with streams of condensate running down the surface. Therefore, people take a rag in their hand and begin to wipe the moisture that has formed. But this does not help, and the condensate forms again.

And this is where the search for the culprit begins. Of course, you don't want to blame yourself in the first place. That is why installers, the weather, window manufacturers, the poor quality of metal-plastic structures, and so on and so forth become to blame. However, here is the paradox - if plastic windows cry in winter, then this, on the contrary, proves the innocence of the manufacturer and installers. How so? But you will understand this when you figure out why plastic windows cry in winter.

Why do plastic windows cry?

So, the most common reason that condensation appears on the windows is the current interpanel seams. When installing, the joints and seams should not only be blown out with mounting foam (and with high quality), but also treated with sealant. It would be better if, during installation, specialists additionally lay waterproofing material. In this situation, you will never encounter the fact that interpanel seams flow. Otherwise, moisture will begin to make its way into your house. First she will find a loophole in the seam, then in mounting foam, and now she is already in a heater, which is able to save it for a long time and give it away. Moisture evaporates, as a rule, into the room, because it is warm there. Well, then it just falls out in the form of condensate on a plastic window. This is how a few unfinished joints can affect the comfort in the house.

To prevent this from happening, during installation, you should insist on observing all the necessary steps. If you have already encountered a problem, then it will help to solve it. good master. In order to detect such a problem, you will need special equipment with which a specialist will find a leak and fix it quickly and reliably.

Why is this happening?

It is clear that the condensation on the windows is quite unpleasant. Besides, this is not the only problem. Condensation is just an unpleasant consequence. But the consequence of what? Combinations of room temperature and relative humidity when in contact with a colder surface. In this case, a double-glazed window acts as a surface.

Why do plastic windows sweat and cry? Warm air, saturated with room moisture, comes into contact with a cold window. What is the result? If the temperature of the double-glazed unit is below the dew point, the air in its immediate vicinity is no longer able to absorb moisture, as a result, condensation begins to form on the surface of the window. That's actually all.

What is this dew point and how to determine it? Its value can be taken from the presented table.

That is, now it should have become clear to you why the plastic windows in the house are crying. It's all about the dew point. But what provokes its appearance?

Why plastic windows cry: reasons

In short, the main reasons have already been named: temperature and humidity. That is, it is worth putting them in order, and the problem will be solved. According to sanitary and hygienic standards, the recommended indoor temperature is at least 20 degrees, as for relative humidity, it should be about 45%. If these rules are followed, in most cases it is possible to avoid a situation where plastic windows freeze and cry.

In general, here is a list of reasons that affect the appearance of condensate:

Bad ventilation.
Wide window sill.
A large number of indoor plants.
Wet weather.
Lots of people in the room.
The room is poorly ventilated.
Repair work.
Weak heating.
And etc.

Let's try to explain.

If indoors poor ventilation which means the air is stagnant. If the air stagnates, then moisture remains in it. If moisture remains in it, then it will eventually fall out in the form of condensate on the window.

how wide window sill got into the causes of crying plastic windows? Radiators in every house are located under the window. If the window sill blocks the flow warm air to the window, the surface of the double-glazed window will cool more strongly, and this will inevitably cause the appearance of a dew point.

Houseplants absorb and release a lot of moisture. If you do not put it anywhere, it will fall out in the form of condensate.

Why do plastic windows cry? On the street wet weather. How is this related? Everyone tries to ventilate the room more often. But few people think about the fact that outdoor humidity can reach 100%. When you ventilate a room, you let moist air in. Yes, it may be that the house becomes fresher, as the air saturated with oxygen enters, but at the same time it is still saturated with moisture. Many people forget about this. If the room is not additionally dried, then condensation cannot be avoided.

If in a small unventilated room is many people sooner or later the air there will be saturated with moisture. Even with normal breathing, one person releases about 50 grams of water per hour. Needless to say, how much moisture enters the air when bathing and cooking?

Repair work- this is always the way to a wet room. We will not go into details, we will limit ourselves to one rhetorical question. Where does moisture go when, for example, cement mortar dries up?

Weak heating. If the room is poorly heated, and it is cold outside, then together with the dew points condensation will appear in the form of ice.

The reasons seem to have been sorted out, but what to do next? More on this later.

We declare war on weeping windows

Plastic windows sweat and cry: what to do? Of course, take action. And the sooner the better. If condensation regularly falls on the windows. So, most likely, the air in the room is oversaturated with moisture. BUT high humidity, as you know, leads to the formation of pathogenic fungi, which by no means can have beneficial effect on human health.

The first step is to make sure that the temperature in the room, as well as the relative humidity of the air, comply with the standards. To do this, you need to purchase a conventional thermometer and hygrometer. As already mentioned, the temperature should be at least 20 degrees, and humidity should be about 45%. If you are convinced that the air in the room has other values, try to bring them back to normal.

First, let's go through the reasons and try to eliminate them:

Make good ventilation.
Reduce window sill.
Move half of the plants to another room.
Try to control humidity during bad weather.
Reduce the number of people square meter. Joke, of course. Simply, as in the previous case, you must try to control the humidity.
It is better to ventilate the room.
There is no escape from the repair work.
Take care of good heating.

How to deal with crying plastic windows? Try to follow everything that has been listed.

One thing remains unclear how to control humidity? If everything is extremely simple with the temperature in the room, then what about the humidity? The most common way to get rid of moisture is a combination of ventilation and heating. Due good heating and constant ventilation of the room is possible, albeit not easy, but to get rid of moisture.

Thanks to modern technologies, there is another way called "air dryer". The device, of course, is expensive, but in some cases it is very useful. A dehumidifier can control the humidity in your home for a modest fee of 250 Wh.

Crying plastic windows: how to fight? It is possible to install double-glazed windows consisting of low-emission glasses instead of conventional double-glazed windows. However, keep in mind that you, of course, will solve the problem with condensate, but you should not forget about the humidity of the air either.

That, perhaps, is all.

Weeping windows: repair in Moscow

If you have a problem, but there is no time to solve it, then Teplo Doma will be happy to help you. Why do plastic windows cry in an apartment, in a house: what to do, reasons, how to fight? Lots of questions you don't know the answers to. Just contact our online consultant. Soon a master will visit you, look at the windows and help you fix any problem associated with them.

Plastic windows do not require repair; during rain, water does not leak between the sashes; these structures make it easy to keep the glass clean.

But sometimes during the operation of windows, one significant minus appears. As soon as the air temperature outside drops, condensation drops begin to collect on the surface of the glass in the room and the windows cry. Because of this, there is an accumulation of liquid on the windowsill, the humidity in the room rises, and fungus and mold may appear on the slopes.

Why are the windows crying?

If the windows start to cry, and the glasses fog up, then this may indicate that the installation technology has been violated or the wrong design has been chosen. When installing, preference should be given to two-chamber and more double-glazed windows, which have a micro-ventilation system. A single-chamber double-glazed window due to the occurrence of a large temperature gradient will almost always lead to condensation on the window. It is equally important that the warranty on the structures extends over several years.

Therefore, when choosing plastic windows, you should choose a reliable manufacturer such as Rehau. This company appeared in Germany in 1948 and today has 170 branches in 53 countries. Since 1995, it has been supplying its carbon fiber and windows to aerospace and automotive industries. Everyone knows the development of windshield and headlight washer systems, batteries for electric vehicles and various composite materials.

If you are confident in the quality installed window, then the cause of condensation is the increased humidity of the air in the room and the lack of ventilation. In addition, a hermetically sealed plastic window blocks the access of air, disrupting heat transfer.

Ventilation, air exchange and plastic windows

It is not surprising that when the glass of a window in a room fogs up, many begin to wonder why this did not happen with wooden structures in the apartment. Maybe the problem is plastic? If wooden windows were as airtight as new plastic windows, then they would also be covered with condensate droplets. The slots ensured the flow of air into the apartment and the presence of good ventilation in the room.

In order for the draft that removes dirty air in the house to be good, you need an inflow fresh air from the outside. This inflow is provided by ventilation shafts. Over time, the shafts become clogged, and the air flow in the room, and hence the air exchange, noticeably weakens.

Usually in all old houses there is a problem with the condition of the pipes in the basement and ventilation, which causes high humidity. At repair work: plastering, wallpapering, whitewashing, when protection against drafts is necessary, the humidity in the room rises many times, which contributes to the appearance of condensation. This problem goes away after it becomes possible to constantly ventilate the room.

Condensation in a room is affected by many factors:

cooking that takes place daily;

drying laundry in the room;

taking a shower.

Therefore, ventilation in the kitchen and bathroom is especially important. Here, constantly high humidity is constantly observed, and this causes plastic windows to cry more often.

To quickly eliminate moisture, you can open plastic windows and arrange forced ventilation. To completely solve the problems, it is necessary to clean the ventilation shafts and adjust the draft. For proper ventilation, ventilation holes windows must be equipped with a non-return valve.

Heating problem

To prevent plastic windows in the room from fogging up, the batteries of the heat supply system must be powerful and located strictly under the opening. The temperature in the apartment should be more than 20 degrees. The battery should not be installed deep under the windowsill. This will make it difficult for hot air to enter the window and lead to a violation of the air exchange in the room. The vegetation that stands near the window, and the aquarium with fish near the glass, also become sources of moisture.

In addition, radiators should not be cluttered or hung with heavy curtains blocking air access.

Warm air from the batteries should freely enter the plastic windows.

Plastic windows cry in winter

In winter, the window glass temperature drops significantly and the difference between it and room temperature is significantly different. With strong window cooling, a dew point occurs, that is, the air near the window glass in the apartment can no longer absorb moisture and drops appear on the glass.

In addition, the higher the floor, the more the windows fog up. In this case, due to poor ventilation and lack of ventilation, warm and moisture-saturated air rises, instead of entering the street into the apartments of the upper floors.

How to deal with condensation?

To combat condensation, it is necessary to achieve a uniform distribution of humidity in the room. At the same time, it is desirable that the air temperature in the house be at least 20 degrees, and the humidity should not exceed 45%.

Other reasons why plastic windows cry should be eliminated. It is necessary to carry out airing in the house at least three times a day. To prevent freezing of slopes, it is better not to use in winter period micro-ventilation method. It is advisable to open the plastic windows completely. The ventilation time should be at least five to six minutes. At the same time, the temperature in the house does not drop much, and the moisture content in the apartment is minimized.

If plastic windows start to cry, you should:

increase ventilation time;

reduce the moisture content in the room;

replace curtains with lighter ones;

control that compliance optimum temperature air, which will remove the reasons for the increase in moisture in the house;

check and, if necessary, clean the ventilation shafts.

If the window continues to sweat, then seek help from a specialist. The expert will accurately determine and eliminate the cause of fogging. Then the view from the window will not be clouded by condensate droplets and the problem will disappear.

Plastic windows do not require repair; during rain, water does not leak between the sashes; these structures make it easy to keep the glass clean.

Why are the windows crying?

If you are confident in the quality of the installed window, then the cause of condensation is the increased humidity in the room and the lack of ventilation. In addition, a hermetically sealed plastic window blocks the access of air, disrupting heat transfer.

Ventilation, air exchange and plastic windows

It is not surprising that when the window glass in the room fogs up, many begin to wonder why this did not happen with the wooden structures in the apartment. Maybe the problem is plastic? If wooden windows were as airtight as new plastic windows, then they would also be covered with condensate droplets. The slots ensured the flow of air into the apartment and the presence of good ventilation in the room.

In order for the draft that removes dirty air in the house to be good, an influx of fresh air from outside is needed. This inflow is provided by ventilation shafts. Over time, the shafts become clogged, and the air flow in the room, and hence the air exchange, noticeably weakens.

Usually in all old houses there is a problem with the condition of the pipes in the basement and ventilation, which causes high humidity. During repair work: plastering, wallpapering, whitewashing, when protection from drafts is necessary, the humidity in the room rises many times, which contributes to the appearance of condensate. This problem goes away after it becomes possible to constantly ventilate the room.

Condensation in a room is affected by many factors:

cooking that takes place daily;

drying laundry in the room;

taking a shower.

Therefore, ventilation in the kitchen and bathroom is especially important. Here, constantly high humidity is constantly observed, and this causes plastic windows to cry more often.

To quickly eliminate moisture, you can open plastic windows and arrange forced ventilation. To completely solve the problems, it is necessary to clean the ventilation shafts and adjust the draft. To establish normal ventilation, the window vents must be equipped with a check valve.

Heating problem

In addition, radiators should not be cluttered or hung with heavy curtains blocking air access.

Warm air from the batteries should freely enter the plastic windows.

Plastic windows cry in winter

How to deal with condensation?

Other reasons why plastic windows cry should be eliminated. It is necessary to carry out airing in the house at least three times a day. In order to prevent freezing of slopes, it is better not to use the micro-ventilation method in winter. It is advisable to open the plastic windows completely. The ventilation time should be at least five to six minutes. At the same time, the temperature in the house does not drop much, and the moisture content in the apartment is minimized.

If plastic windows start to cry, you should:

increase ventilation time;

reduce the moisture content in the room;

replace curtains with lighter ones;

control that the optimum air temperature is observed, which will remove the reasons for the increase in moisture in the house;

check and, if necessary, clean the ventilation shafts.