Why sweat the plastic windows - the causes and solutions to this problem

With such a problem faced by almost every one of us.Remarkably, it is most often seen after replacement of obsolete wooden blocks on new designs PVC.It would seem that there is nothing terrible, but if you do not take certain measures, the consequences could be the saddest.

First , suffers microclimate.Once plastic windows fog up, it means that the air excess concentration of vapor, which is condensed on the glass, since they are the coldest part of the room.Living in such conditions not only unpleasant (constant presence of musty odors, mold), but also harmful to health.By the way, for premises Recommended humidity from 40 to 50%.

Second , it triggers an increased level of development of mold and mildew.It affects all: the surface (base), decoration materials, household appliances and personal belongings.This leads to inefficient spending money - more frequent repairs, buy new clothes to replace the damaged and the like.We consider the main causes fogging the windows in the apartment and how to solve this problem.

reduce the effectiveness of natural ventilation

It would seem, what is the connection between the cooker hood in the kitchen, in the bathroom and replacement of window units?After all, these utilities no one has touched?The fact that the wooden frame as they do not close up for the winter (gluing strips, sealing), still partially air from outside passed.For example, through micro-cracks in the wood, the gaps between the glass and the frame."Paths" enough penetration.

Recommendations

• Most aired.This may be done regularly, once a day, opening the shutter completely at 10 minutes.The second way - "general" airing at which 2 - 4 minutes (depending on the temperature outside), swing open the doors and windows.The third - to keep the flap of one of the windows slightly open position longer.Naturally, everything is determined by local conditions - the weather, the presence of kids in the house, heating, and a number of other quality.
• Set forced hood (ventilation) - as described here.In apartment buildings characteristics available (natural) often do not meet the requirements, for example, for the reason that partially clogged channel.

Low quality or policy violations

mounting This happens usually with self-installation of window units.If the assembly carried out by untrained person, it is possible to properly install accessories, seals and so on.Adjustment also requires a certain experience.

In addition, you must pay attention to the quality of "foaming" voids, correct arrangement of vapor barriers, installation of slopes.This is - the most common mistakes, especially when it comes to insulation.It is done in different ways.For exterior slopes is desirable to use polystyrene (EPS), for internal - mineral insulation (mineral wool).

It is appropriate to also remember about such a concept as "dew point."So do not skimp on the amount of glass.If it is only one, the fogging can not be avoided.

Recommendations

• Set unit with at least two double-glazed windows (depending on the climate features).Even better - the film (energy saving).Several costly to vacuum or three-chamber, but it will be a reliable guarantee against fogging.About how to choose quality windows, see this article.
• Probably, new sill is too wide and prevented from entering streams of warm air masses in the glass.In this case, it is better to convert.There are also such recommendations - drill holes in it.But it is as you like.
• layer foam "cover" of cement mortar (both inside and outside the building).This applies not only to the perimeter of the window, but also places of contiguity to the walls and slopes of low tide.Inspect the bottom of the window sill and - if necessary to carry out the same treatment places "foaming".

What to consider further

• If the apartment is renovated and the windows began to fog up, it is possible that the quality of vapor barriers fell for finishing surfaces.To her deterioration causes the wrong choice of primer, pasting non-woven, vinyl wallpaper, and more.The whole room is "corked", and excess moisture has nowhere to go but to condense on the glass.And if the repair is planned only, it is necessary to provide it.
• Curtains over window openings should be placed so that there is a certain gap between the curtains and the window sill.
• If decorative grilles are installed on the radiators, then in winter it is desirable to dismantle, as they are the kind of obstacle to the heated air rising up.
• pots with flowers located on a windowsill, contribute to the formation of condensation on the windows.
• In some cases, helping a device called a "dehumidifier".But the feasibility of its application checked only practice as it is effective in some areas, while in others - not.
• Condition of sanitary equipment.The various "leaks" contribute to raising the level of humidity in the apartment.

To tackle misted windows must be approached comprehensively.Practice shows that it is not caused by any one, and a set of reasons.Therefore, all of the above, although to varying degrees, but the influence of moisture condensation on the glass windows.