Why plastic windows are sweating - reasons and ways to solve this problem

window Almost every one of us faces this problem. What is noteworthy, it often manifests itself after the replacement of obsolete wooden blocks with new PVC structures. It would seem that there is nothing terrible, but if you do not take certain measures, the consequences can turn out to be the saddest.

Firstly, , this affects the microclimate. Once the plastic windows get fogged, it means that there is an excessive concentration of vapors in the air, which condense on the windows, since they are the coldest part of the room. Living in such conditions is not only unpleasant( the constant presence of odors of mustiness, rot), but also harmful to health. By the way, for residential premises the recommended humidity is from 40 to 50%.

Secondly, , its elevated level initiates the development of mold and fungus. Everyone is affected: surfaces( base), finishing materials, household appliances, personal belongings. This leads to irrational spending money - more frequent repairs, the purchase of new clothes instead of spoiled and the like. Let's consider the main reasons for fogging windows in an apartment and ways to solve this problem.

Natural ventilation efficiency of

decreased. It would seem, what is the relationship between the hood in the kitchen, in the bathroom and the replacement of window blocks? After all, no one touched these engineering communications? The fact is that the wooden frames, as they do not cover up for the winter( gluing strips, sealant), still partially air from the street was missed. For example, through microcracks in the wood, the gaps between the panes and the frame."Ways" penetration is enough.





The plastic windows of the window opening are closed "tightly"( if you consider their "zapenivanie" around the perimeter after installation).It turns out that this additional "ventilation" of the room is now blocked, and particles of moisture settle on the panes.

Recommendations

  • Ventilate rooms frequently. This can be done regularly, several times a day, opening the sash completely for 10 minutes. The second way is "general" airing, in which for 2 to 4 minutes( depending on the temperature in the street) all doors and windows are flung open. The third is to keep the sash of one of the windows in the slightly open position longer. Naturally, everything is determined by local conditions - the weather, the presence of children in the house, the quality of heating and a number of others.
  • Set the forced ventilation( ventilation) - as described here. In apartment buildings, the characteristics of the available( natural) often do not meet the requirements, for example, because the channel is partly blocked.

window

Poor quality or violation of mounting rules

This happens, as a rule, with the self-installation of window units. If the assembly was conducted by an unprepared person, then improper installation of fittings, seals and so on is possible. Adjustment also requires some experience.

In addition, it is necessary to pay attention to the quality of "zapenivaniya" voids, the correct arrangement of the vapor barrier, the installation of slopes. These are the most common mistakes, especially when it comes to warming. It is done in different ways. For slopes of external it is desirable to use polystyrene( expanded polystyrene), for internal - a heater mineral( mineral wool).

It is also appropriate to recall the concept of "dew point".Therefore, do not save on the number of double-glazed windows. If he is only one, then sweating can not be avoided.

Recommendations

  • Install a block with at least two double-glazed windows( depending on the climate).Even better - with a film( energy-saving).A little more expensive will cost a vacuum or three-chamber, but this will be a reliable guarantee against fogging. For information on how to select quality windows, see this article.
  • The new window sill is probably too wide and prevents the flow of warm air masses onto the glass. In this case, it is better to remake it. There are also such recommendations - to drill holes in it. But it's already someone like it.
  • A layer of mounting foam "cover" with a solution of cement( both inside and outside the building).This applies not only to the perimeter of the window, but also to the places where the tide and slopes meet the walls. It is necessary to inspect the bottom and the window sill, if necessary, to carry out the same processing of the places of "foaming".

What to consider in addition

  • If the apartment is repaired and windows become fogged, then, perhaps, when finishing the surfaces, the quality of the vapor barrier has decreased. To its deterioration leads to improper choice of primer, pasting non-woven, vinyl wallpaper and much more. The whole room is "clogged", and there is nowhere to go to excess moisture, except to condense on the glass. And if the repair is only planned, then it is necessary to foresee this.
  • Curtains above window openings should be placed so that there is some gap between the curtains and the window sill.
  • windows-do not sweat If decorative radiators are installed on heating batteries, they should be dismantled for the winter, as they are a kind of obstacle in the way of heated air rising upwards.
  • Pots with flowers, located on the windowsill, contribute to the formation of condensation on the glass.
  • In some cases, a device called "air dryer" helps. But the expediency of its application is checked only by practice, as in some rooms it is effective, but in others it is not.
  • Condition of sanitary equipment. Various "leaks" contribute to increasing the level of humidity in the apartment.

To solve the problem of misted-down windows you need to approach in a complex way. Practice shows that it is not caused by any one, but by a combination of a number of reasons. Therefore, all of the above, albeit to varying degrees, but affect the condensation of moisture on the windows.

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