Universal "recipe" of dampness and mold

When the mold first thing that we are starting to do - looking for ways to get rid of stains. Make it is not difficult. Sales have enough funds to do an excellent job with pollution (including mold and mildew). That's only if you do not remove the cause of their appearance, the problem will manifest itself again.

Where does the moisture

First, a little theory.

The air that surrounds us, the liquid contained in the form of steam. Absolute humidity indicates how many grams of liquid contained in a cubic meter of air. The higher the temperature, the more water can be present in the air (see graph). Why do we know that?

If the amount of water in the air reaches a limiting concentration, moisture condenses. Imagine, for example, that the absolute humidity we constantly 20 g / m3. In the summer, when the temperature in the house of 22-25 degrees, no problem. But in the fall, while the heating is not yet turned on, the temperature drops and the water at the same moisture begins to condense.

In practice, the appearance of condensation in the air (mist) practically does not occur. Dampness It emerges on the coldest surfaces room: adjacent to the street, walls, windows, risers cold water supply, etc.

How to fix the top mold growth

We can as much as necessary to "reinvent the wheel", coming up with the causes of dampness. But the laws of physics can not escape. If you look again at the chart, we see that the true causes of only two: Insufficient temperature and excessive humidity in the room. THERE ARE NO OTHER!

Ways of dealing respectively are also two. Low surface temperature - insulated. Excessive humidity in the room - ventilated.

To identify the problem, only two devicesWhich, by the way, for a penny you can buy at the same aliekspresse: thermometer and hygrometer.

Hygrometer look for relative humidity in the room. It should be in the range 40-60%. If the above - ventilated.

Pyrometers measure the surface temperature at different points of the room. Thus easily identify the freezing zone. Large temperature difference - means it is necessary to insulate or look for the causes of freezing: a crack, a violation of waterproofing with water leaking, etc.

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