Blown plastic window: what to do? How to fix the problem?

Installing plastic windows - this is a very reasonable solution for owners of private houses and apartments. Such windows are famous for their high thermal and waterproofing properties. However, sometimes it happens that the sill suddenly starts to blow, which significantly cools the room.

Especially it is unpleasant in the winter when there is a subzero temperature in the yard. What can I do if I blow a plastic window? How to act in this situation, you will learn right now.

Blown plastic window - what to do? We search for the reason

First of all, it is necessary to understand why this happens. If you notice that it blows the junction of the flaps, the problem probably lies in a bad seal. Also it is necessary to note the fact that even the most expensive metal-plastic windows can not guarantee you complete isolation from external factors for a long time. As a rule, the sealer "lives" no more than 3-4 seasons, that is, about 3-4 years of operation. At the end of this time, this window element becomes more rigid and simply loses its properties. Gradually, small holes are formed in the sealant, through which cold air from the street penetrates.

So, you found that you are blowing a plastic window. What to do in this case?

The only way out of this situation is to purchase a new seal. You can buy it in almost any specialized store, and it's quite easy to install. And in order to be completely calm for the metal-plastic window, in addition purchase special care products. So you will increase the service life of the seal for another 1-2 seasons.

Another frequent reason for scavenging windows is the incorrect adjustment of the leaflets. In this case, nothing to insulate is not necessary. To fix the situation, it's enough to take the hexagon in your hands and adjust the direction of the wings. Define the sagging of the windows is also quite simple - when you open it, the lower part of the sash will cling to the frame. In this case, blowouts will be observed in the upper part of the outer corner. How to adjust the flaps, we will consider in the next sub-heading.

We proceed to adjustment

So, we are blowing a plastic window. What to do and how to adjust it? To adjust the hardware, you will need a minimum set of tools. It is enough to have one hexagon and pliers.

On the fittings you will see several elements - the lower and upper loop, the trunnion, the counter-slats on the window frame and the scissors, located on the swing-out fittings. With the help of the first element you can independently adjust the window. Here it can be adjusted in 4 directions - down, up, left and right. The upper loop supports adjustment to the clamp. Still here you can set the position of the window in a different direction (left or right). Elements such as trunnions and counter-strips serve to correct the clamping of the leaf.

What if the cold air penetrates the room from under the slopes?

Earlier we found out why it blows plastic windows. How to eliminate the problem if air penetrates into the room from under the slopes? First of all, you need to remove the slopes and additionally insulate the plastic window under them. If there is foam, carefully zapente all joints and seams of the sealing element. Foam should fit snugly over the entire area of the window and its frame. If you doubt the quality of the work done, remove the seal and reinstall it. In brick houses in order to exclude blowing, it is recommended to plaster the wall further under the slope insulation. A sealing foam can be used as a sealing element. It is very simple to use - first it is applied to the wall, then the foam is pressed tightly against it. Excess frosted foam is carefully removed with a knife.

After all the above works, the slopes are mounted in their place, and the joints are sealed or closed using special cashings.

A few words about mineral wool

Why sometimes even after such a "repair" blows a plastic window? What to do in this situation? It's all about sealing material. If instead of polystyrene under the window you have discovered mineral wool, it is best to replace it. The fact is that this material does not perform its thermal insulation function very well. Over time, cotton wool simply rolls down, and in the place of the formed slits blows are formed. It is for this reason that experts recommend the use of foam as the main thermal insulation material.

So, we found out why plastic windows are blown out, and how to solve this problem in different cases (depending on the place of depressurization).