Why are plastic windows sweating?

With modern repair, apartments are increasingly equipped with PVC windows. They do not need to be constantly strengthened or painted, dust and noise from the street do not penetrate through them. However, even with such a high-quality design, problems sometimes occur. Condensation may appear on the windows, which causes a lot of inconvenience, and besides, they look quite unaesthetic. We will find out why plastic windows are sweating and how to deal with condensate.

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How is a metal-plastic window arranged?

Its frame consists of a plastic profile, light penetrates through the glass. For the manufacture of the profile, polyvinyl chloride with various additives is used.

Important! Plastic, despite a lot of advantages, the material is not the most durable. Glass weighs quite a lot, so in order to strengthen the frame, metal inserts are used.

Components of PVC windows:

• Frame - a supporting frame, the installation of which is carried out in the opening. The frame is the basis for securing double-glazed windows and all the necessary accessories. As a seal, rubber is used that does not allow moisture or air to pass.
• Sashes - can be deaf or mobile. They are a kind of frame for double-glazed windows. Sashes, like the frame, are available with metal reinforcement.
• Accessories - handles, hinges, opening mechanisms. Additional devices are represented by blockers, lifts, etc.
• Double-glazed window - the glass itself. There can be two, three or more. The thickness may be different. All of them are tightly interconnected.

Important! In the space between the glasses, an aluminum frame is mounted, the cavities of which are filled with absorbent material. Thanks to this, glasses cannot be fogged up, but only on condition that the bag is airtight.

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Causes of sweating windows from the inside

It seems that such a robust design should remain completely sealed and no condensation can form in it at all. Windows are sweating for completely unexpected reasons.

High humidity

This is the main reason for fogging windows. There can be several reasons for increased humidity. Why do plastic windows sweat in the first place? Due to the quality of heating the apartment when it is cold outside.

At this time, there is a strong cooling of the plastic window, and if the room is with high humidity, the formation of increased condensate. In this case, you should refuse to heat the room with a gas stove.

Important! Heating the apartment with a gas stove is harmful to health, in addition, condensation forms on the windows.

Cooking food

In the kitchen, steam forms during cooking. All this ultimately causes moisture to form. If the ventilation of the kitchen is insufficient, you should take care of this:

• Check the ventilation shaft regularly;
• Get rid of collected dust and sand;
• If necessary, use an electric range hood.

If you do not take such measures, you will continue to watch plastic windows sweat regularly.

Important! While a cubic meter of gas burns, oxygen burns in a huge amount: 13-15 cubic meters. It is necessary to take care not only of the ventilation of the room, but also of the supply of oxygen.

Wash

This is an important process, and it is not the last in the question of why plastic windows are sweating from the inside in a private house. If things dry indoors - this leads to an increase in humidity.And in the end, mold and fungus form due to condensation.

Poor installation

Of course, a lot of attention needs to be paid to the installation of the window itself. Saving leads to the order of work from non-professionals. As a result, installation requirements and rules are violated:

• Sealing of the window and window opening is often broken. If there are cracks, nothing prevents cold and damp air from entering from the outside, and as a result, the windows begin to “cry”.
• Sashes often warp in relation to the frame, which leads to a loose fit. If there are gaps, cold air penetrates. And if there is a strong wind on the street, an unpleasant strong “whistle” appears.
• In the event that the window sill is not mounted correctly, moisture will also form.

Important! It is necessary to check how correctly the slopes are performed. When using plastic or drywall, be sure to check the tightness of the mounting foam. If there is a draft - the slope is disassembled.

Heating source

In the event that there is no normal heating - the temperature rises in the room, as a result - the window fogs up:

• If the battery is under the window, the bottom of the plastic window may freeze. The reason for this is too protruding windowsill. Because of it, the circulation of heat from the radiator to the window is impossible.
• Decorative decoration may interfere with the normal circulation of warm air. If the windows in the apartment sweat for this reason - what should I do? It’s easy to get rid of gratings that heaters “strangle” too much.
• In the case when there is no central or individual heating, and electric heaters are used to heat the room, the air is dried out. All this leads to disruption of circulation, as a result - water on the windows.

Design features of the building:

• A newly built house made of brick, and the windows, despite their quality, are still covered with condensate? The reason is poor ventilation. In this case, it is difficult to determine why the windows are sweating. Food is being prepared, clothes are drying, humidity from the bathroom - all this remains in the room. Including, and on the windows.

Important! There is only one way out - airing, even in winter.

• Also, problems can be caused by too large a window sill, which prevents the warm air from entering the battery. If reducing the windowsill is not possible, you can make holes in it to give way to warm air.
• Why do windows sweat in winter and how to eliminate this trouble? In the new house, shrinkage can occur, which leads to the appearance of cracks near the frame. In order to eliminate them, you can use liquid plastic.
• If the house is being renovated, do not be surprised at all the appearance of drops on the glass. Drying screed and plaster give moisture. The only way out is airing.

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We deal with fogging glasses

Factory defects are unlikely to be fixed, but here you can avoid the main unpleasant moments:

• A single chamber package is not the best choice. Better to choose triple glass.
• Ventilation grilles and ducts must be cleaned.
• Before winter, you must definitely turn the PVC window into winter mode. Otherwise, the insulation will remain low, the inner window will be too low.
• Do not force the windowsill with plants. They need to be constantly watered, and this leads to additional moisture.
• Any windows require constant ventilation, every day for at least ten minutes.
• After the summer heat, it is necessary to inspect the flaps for sagging, check the gaskets. If necessary - the window needs to be adjusted.

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Stock footage

With our tips you can deal with the problem. Often it is very easy to get rid of fogging and it is not necessary to change new beautiful windows.