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About Mould and Window Steaming up

The most frequent reason for moulding is poor accommodation ventilation.

In blocks of houses ventilation channels are frequently blocked or covered on purpose(so that heating would not come out). Due to this,increased air humidity(60 % or more) forms. When the temperature outside decreases, glass surface and embrasures cool off most of all(reaching dew point temperature) thus condensed water vapour may start forming on the coldest spots on the walls around windows.Water soaks in the wall constructions. The repetition of this cycle, usually because of poor ventilation of accommodation which guarantees moisture elimination from the wall, it becomes so much soaked that it loses heat insulation properties..cold bridges start forming on frozen spots.This stimulates water condensation even further alongside with other undesirable phenomena such as destruction of the wall construction and,most importantly, its inner decoration.

The mentioned process progresses anywhere on wet walls. Thus under lack of ventilation or poor heating of accommodation and on the spots with noticeable moisture means that cold bridges had formed.More reasons for moisture formation may be detected such as water forming on the outer wall due to poor parapet tinkering.(especially on top floors of blocks of houses), poor downpipes, leaky seams,wall construction defects( vapour insulation layer absence is the simplest defect) or it might be caused by poor exterior wall resistance

Having noticed steaming walls(corners,reveals) it is important to clarify the reasons urgently. More intensive ventilation of accommodation is required, and during transition oeriods or in winter one must heat the walls till wall constructions completely dry.This is costly but worthwhile doing since elimination of mould or decoration work is even more expensive.

How to Eliminate Mould?

Firstly, wash mouldy surface with a mixture of soda and washing powder.Fungi cannot tolerate alkaline conditions and get killed..Having scraped the remnants of fungi,one must additionally disinfect with 5% copper sulphate solution(dark blue crystals sold alongside garden commodities) or apply fungicides. This process should be performed thoughrougly as in case fungi trouble spots are left, they will reappear.Only being assured that fungus has been destroyed, one may start preparing the wall surface for decoration work.

Anyway, even after doing everything possible well, there are no guarantees that mould will not reappear.if the real cause of mould appearing will not be clarified and eliminated.. or proper ventilation won’t be ensured.

What Steps should be Taken to Avoid Mould?

Functioning of simple ventilation systems installed in windows and the amount of fresh air passing through them depends on the atmosphere pressure changes,temperature the wind and accommodation exhaust ventilation.Thus, the chosen ventilation cannot always guarantee comfortable microclimate in the accommodation.

Plastic windows have the characteristics of tightness which the old windows did not possess..So, even the slightest ventilation will depend only on your actions.

Firstly, make sure that your flat ventilation channels function well(place a student notebook sheet on the ventilation slot-when you let it go, it cannot fall down. In case pull is too weak, reasons should be clarified.

While cooking food, switch on exhaust ventilation.

Try to keep inside door between separate rooms (this way air circulation will improve inside the accommodation)

Intensive ventilation of the accommodation is a must several times a day while constant air flow should be guaranteed via microventilation or airhole.When the air temperature is lower then -10 C (minus 10 degrees),it is recommended to ventilate accommodation for short periods of time by opening window panels wider.which decreases relative humidity meteor more efficiently.but simultaneously it does not allow item surfaces to cool off.Suck kind of ventilation saves heating energy as air air heating capacity is much lower then things within accommodation or building constructions.

Also, application of domestic humidity collectors is possible.

Why does it Dew from the Inside?

Most frequently the very humidity is the basic reason.Usually it is noticeable in older construction plastic windows: three camera frames,they are narrow approximately 60mm, glass package is without selective covering.

What to do to Avoid Dewing?

The methods of eliminating dew are similar to those applied when fighting fungi.Furthermore, it is advisable to change a glass package if one cannot afford to replace an old window.New window packaging is seven times warmer than an ordinary glass packaging.

Why do Windows Dew from the Outside?

Origin of condensate on outer glass panel usually prevails on three glass panel packaging with two selective coverings.
Occasionally it is noticeable on two panel glass packaging with the third generation selective or in windows filled with inert gases.
Windows tend to dew more frequently from the northern or the western side and water proximity affects windows as well.In any case, outer dewing means you have purchased high quality windows.