Is It Normal To Have Condensation On The Double Glazed Glass Surface？

Many small partners in the north have such troubles: when it comes to the heating season, the inside of the window glass is all condensed water, and the serious flow is full of water on the windowsill, and even down the wall, the windowsill near the window is wet, and even the wall is peeling and moldy.

Families in the south will also encounter such problems if they turn on air conditioning when it is cold.

Is it because the temperature difference between the inside and the outside is too big? No, it is also a heating area, some people do not have such a problem. On a plane, there is often a 30-40 degree difference between the cabin temperature and the air temperature above, and I have never seen frost on the plane Windows.

Is there too much humidity in the house? No, heating everyone feel dry panic, but also need extra humidification, where does the moisture come from?

Actually, the problem is the sealing and insulation of the Windows.

The Windows in the north are mostly double-glazed to keep them warm.

However, there is still a difference between double glass and real insulating glass, the process of double glass is not high, the middle is not a vacuum, and the heat can still be easily transferred between the two layers of glass.

In addition, the more common Windows are still made of plastic steel, not particularly good insulation materials, so there are gaps between the window frames, especially the gaps between the slide rails of the Windows are very large, the seal is not very good, the insulation is poor, and the cold air outside is still easy to run into the room.

Smart you asked again, but why did the house I lived in when I was a child, even if it was a single pane of glass with wooden window frames, there was no fog?

Because the old-fashioned radiator is installed under the window, although the window insulation is not very good, but the heating has been baking the glass, the glass itself is baked hot, water vapor will not be cold liquefied into small drops of water.

But if you install floor heating, or the home is a floor-to-ceiling window, large bay window, then the most effective way is to replace the window, to break the bridge aluminum insulating glass window (double glass is not enough), it is best to casement window, that is, to open the window inward or outward, sealing is better than pushing and pulling the window.

When installing, be careful not to destroy the insulation layer of the wall, and the foam between the window frame and the wall must be filled until both the inside and outside overflow, so that the gap is completely filled and the sealing is very good.

There has been glass fog and dew how to do?

First of all, the insulating glass that leaks water or air is a substandard product, and second, the inner cavity part of the insulating glass needs to be filled with nitrogen. Confining air to the central cavity can also create fog. They put desiccant in them and all that stuff. Or buy regular insulating glass is the key to prevent water leakage fog. The last point is that the hollow glass with water leakage and fog has no maintenance value, and it is directly replaced with a new one.

What if you don't want to replace the window?

1. If the phenomenon of double-layer glass fogging caused by the sealant is not sealed tightly, the sealant on the double-layer glass can be removed with tools, and the glass window is cleaned again, and the glass sealant is brushed after drying.

2. If the sink position of the double glazed window is not installed, remove the double glazed window and reinstall it.

3. If the double glazing spacer is not installed, you can add a glass gasket to the double glazing. Remove the original septum strip on it, and reinstall the septum strip. It should be noted that the pasting position of the septum strip should be kept at a certain distance from the edge of the window, generally 2mm is the most appropriate. And when installing the glass window, be careful not to dip water on the septal strip, so as not to affect its installation quality. If the temperature difference is too large and caused by the fog phenomenon, you can open the window for a while, so that the difference between the indoor and outdoor temperature differences becomes smaller, until its upper fog clears.

There are several ways to alleviate the phenomenon of dew condensation in glass without adding additional costs:

1, the appropriate window ventilation every day, can reduce the air humidity, exhaust the moisture generated in the day's activities, the same glass condensation can also dry normally.

2, equipped with exhaust fan space, can be appropriate to open the exhaust fan, can reduce or eliminate the problem of dew in the knot.

3, if you feel that the window ventilation is cold, it is necessary to often wipe off the dew on the glass with a rag to prevent the formation of water flow, flow to the windowsill, the ground, damage to the interior decoration.

4, glass paste anti-fog film, in the bathroom glass mirror paste anti-fog film, found that the mirror does not appear water fog and lead to unclear, although a little increase in cost, you may wish to try.

5, the more obvious method may increase the cost, such as the installation of dehumidifier, fan system in the home, or special performance glass, can automatically heat dew glass, vacuum glass and so on.

Even energy-saving Windows with the smallest possibility of condensation, their condensation impedance is also dependent on the relative humidity of the room, if the relative humidity exceeds 40%, in the outdoor temperature of -20℃ or colder, even better high-performance glass will condensation.