We finished renovating a house. The owner originally wanted to open the windows for ventilation, but we kept saying: \”After the renovation is completed, the windows cannot be opened immediately for ventilation. The doors and windows must be closed tightly.\” ”

Subsequently, the host thought that we were being superstitious, but did not expect that what we said had scientific basis.

Many decoration masters will suggest after the house decoration is completed: \”Close the doors and windows tightly in a few days.\”

With the advancement of science and technology development, everyone has come up with evidence to refute it, so is it really impossible to open the windows after the decoration is completed?

Otherwise, what is the benefit of doing so?

The benefits of closing doors and windows after renovation.

On the one hand, it is to ensure the quality of decoration, and on the other hand, it is to accelerate the volatilization of pollutants such as formaldehyde.

First of all, let’s look at the first benefit, which mainly involves latex paint, wall tiles and other materials.

Normally, the latex paint on our house takes three or four days before we can close the windows.

This is mainly because water is needed to paint the walls, and a certain humidity needs to be maintained after painting to prevent cracking.

If we open the window immediately after painting the wall, the moisture on the wall will evaporate quickly, causing cracks on the wall. If we repaint the wall after it is cracked, it will affect the appearance.

So why? To prevent cracks from appearing, we should close doors and windows

Secondly, there are wall tiles pasted indoors. The main component of these glues is also water. If the moisture on the wall tiles evaporates quickly, then the glue on the wall tiles will not The method is very good and will cause the wall tiles to fall off.

Therefore, the glued wall tiles must be kept moist so that the wall tiles will not fall off.

The next step is wallpaper and wall coverings. These materials themselves are easy to bulge and peel off, which shows that their internal structures are also easy to break.shape, so when they come into contact with excess moisture, they can bulge or unglue.

If we open the windows after decoration, unless the weather outside is humid, the strong outdoor wind will cause the moisture in the room to evaporate faster, aggravating the speed at which they bulge and open. Therefore, in order to prevent In this case, we have to close the doors and windows tightly.

Speaking of this, some people must want to ask, so why don’t you know such an urgent question?

In fact, it is being renovated. You can see that the decoration master usually closes the doors and windows for a period of time.

There is also solid wood furniture, so that the furniture does not lose water quickly, otherwise the furniture will crack and deform.

So what is the role of opening the windows?

Some people think that opening windows for ventilation can make indoor odors disperse faster and accelerate Formaldehyde evaporates, but this is not actually the case.

In order to accelerate the volatilization of formaldehyde, we can also increase the indoor temperature, so that Accelerate the volatilization of harmful substances indoors, but ventilation alone cannot achieve this effect.

Therefore, opening doors and windows after decoration is not only ineffective, but may also cause damage to the decoration materials.

So this is our point of view, to prevent damage, we will close the doors and windows.

The specific method of \”closing the house\” after renovation.

So what exactly do we do after the decoration is completed?

Generally speaking, after painting the walls, pasting the floor tiles, laying the floors, etc., we need to move the doors and windows It will be normal to be closed for about a week.

If you find that there are no obvious problems with these materials, then you can extend it to two weeks, because the longer the doors and windows are closed, the better for the wall materials, but when ventilating, you have to pay attention to the outdoor wind direction and Weather conditions, because outdoor air has little impact on formaldehyde and other pollutants, and sometimes even the breeze cannot reach it The effect of ventilation.

So, you can open the doors and windows for an hour or two when the weather is fine during the day to let the indoor pollutants disperse, but if the weather outside is not Well, or when there is strong wind, not only will it not speed up the dispersion of odor, but it may also cause other problems, such as dust and other secondary problems. Pollution problem.

To sum up, under normal circumstances, we close the doors and windows for about a week, and if there is no problem, it can be extended to two weeks. However, if you want to shorten this period, raising the indoor temperature is the best way. Important methods.

In order to increase the indoor temperature, you can turn on the air conditioner, heating, etc., which will not only speed up It is a more scientific method to evaporate indoor substances, and the removal effect is much better than opening windows for ventilation.

In order to reduce costs, some people choose not to turn on air conditioning or heat. This is not advisable, otherwise. Not only cannot the best results be achieved, but it may also cause other problems, such as material cracking, deformation, shape distortion, etc.