Insulation of the inside of the window - Tips + Video

Insulation of the inside of the window - Tips + Video Nowadays almost everyone is trying to replace old wooden windows with metal-plastic (PVC) windows. Manufacturers assure us that the insulation of windows on the outside and inside are a thing of the past.

However, after some time of operation of pvc double-glazed windows , users begin to face the forced insulation of windows. Because even plastic windows have weaknesses that contribute to heat leakage from the house.

To determine where it is blowing from, you need to have an idea of ​​the structure of the window structure.

Reasons for heat loss

The main blowing points are: insulating glass holders, rubber seal, places under the hinges and the handle, around the frame.

There can be several reasons for the passage of cold air into the room. The most common problem arises from improper installation of double-glazed windows, namely ignorance and non-compliance with the window construction technology. Negligent attitude of the assembly team to work, poor sealing of cracks, failure to seal the assembly seams with sealing tape. And if do not timely finish the external slopes of windows, then after an interval of time by the actions of the environment will destroy the foam.

Saving on construction foam, insulation, not using protective thermal insulation, the use of low-quality components in the assembly process - all this is the reasons for the necessary insulation work.

Insulation of the inside of the window - Tips + Video The situation of shrinkage of the building is relevant for residents of new buildings or a wooden house , t. as this can lead to skewing of the frame.
Another not unimportant reason is not proper window care. Many people neglect the primitive window cleaning.

So, about 2 times a year, the window seal should be washed and lubricated with glycerin so that after a while it does not begin to crack, which will naturally promote heat transmission.

It is possible for cold to enter the room if the pressure flaps are loose. This is solved by adjusting the fittings.

Regulation of the clamping mechanism

During operation, the window is exposed to mechanical and climatic factors. As a result, volume loss of the sealing gum can occur.

Because of what the air gets inside the house. To resolve this issue, it is not at all to resort to replacing the gasket, if, of course, it is completely in an unusable state. You just need to adjust the pressure mechanism.

First, find the protruding cylinder - of the trunnion in the cut-out places of the metal plug. Then move the hooks to the desired position or carry out the pivot adjustment.

To change the position of the hooks, loosen the bolts. When moving to the street side, the pressure increases, and in the opposite direction, it decreases.

How is it determined from where it is blowing?

Even if there is only one defect, the window will blow from the window. You can determine the place from where this is happening in one of three ways:

  • By dragging your hand around the perimeter of the window block;
  • Lighter. As well as with the hand, in the place of the draft the light will change;
  • Putting an ordinary sheet of paper in an open window and close the sash.

    If, when pulling on the the tip of the sheet, it easily stretches out, then this will indicate a poor pressure of the seal.

How to insulate a window for the winter with your own hands

All measures for insulating a double-glazed window must be carried out before the onset of the cold period. Because materials such as dry mix and sealant should only be used at certain temperatures, as they may lose their properties. The air humidity should be optimal, there should be no draft. Warming must be done simultaneously with outer and inner sides.

Applicable materials
Different materials and methods can be used here. Such as :

  • Construction foam. It is the best tool for window insulation. With its expansion, all voids are filled. But the foam must be protected from direct UV rays and temperature fluctuations.

  • With mineral wool. Differs in good thermal insulation properties.
  • Styrofoam or expanded polystyrene for heat insulation of slopes.

For information: Rigid insulation is used in cases where the assembly seam is not wider than three millimeters. In others, it is better to use mineral wool.


Silicone sealant is used in the processing of plastic parts of the window to eliminate blowing. With the help of dry mixtures, slopes are insulated from the side of the street. Construction tape is used instead of or on top of sealant.

External insulation

Works on external insulation include insulation of the slope and low tide from the street side. If the insulation of the outer slope was not previously done, then all actions will be useless.

After the time has elapsed, the window will still be blown out, in addition, the inner wall may get damp and become moldy. Putting up the external gaps will not lead to anything, since plaster and foam will gradually deteriorate.

Insulation of window slopes from the street

The whole process of insulating windows from the outside consists of the following steps:

  • Preparatory work;
  • Cleaning slopes from dirt and foam residues;
  • Applying a primer to the surface;
  • Installing insulation on glue;
  • Sealing gaps with glue;
  • Arrangement of corners;
  • Carrying out the installation of a polymer mesh;
  • Plastering.

Important: When installing the insulation, it must be laid so that it partially overlaps the window frame, and the assembly seam is completely closed.

Insulation of the inside of the window - Tips + Video First you need to cut off all the remains of the polyurethane foam.

Slopes are treated with antibacterial primer mix. Tiles equal to the size of the slope are cut from the penoplex. They are spread with assembly glue and pressed against the surface. Dowels can be used here. A corner is being installed.

A fiberglass mesh is placed on the tile over the applied glue. It is necessary to give time and once again coat the top with glue. Upon completion of the insulation work , water-based paint should be applied to the surface.

Important: The paint is applied only after the glue has completely dried.

Due to the external insulation of the windows, no condensation occurs.

Insulation of ebb tides
To insulate ebb tides of plastic windows, it is necessary to fill all gaps with heat insulating material and zap them. To prevent water from getting onto the insulating material, place a metal bar over the drip. The angle of its installation should be more than five degrees, and the horizontal edge should go twenty-thirty millimeters beyond the facade , The side edges at this turn up. Places where the plank adjoins the surface, you need to walk with a hermetic mixture.

Insulation of windows from the inside
Work on insulating a window block from the inside of the house may include:
Replacing a worn-out rubber seal , adjustment of fittings, sealing of joints, replacement of a double-glazed unit with an energy-saving one, insulation with a film.


The role of the rubber seal is quite significant, it ensures the tightness of the window. So it is extremely important to regularly inspect the seal and take proper care of it.
The joints are sealed by applying sealant to the blowing points. Today on the building materials market there is a huge selection of hermetic compositions of different types - for different wall materials, for different temperature regimes, etc.

Additional window insulation methods
These methods include primitive window cleaning.

After all, if the glass is dirty, then it does not fully transmit the sun's rays.You can use a thick curtain fabric that will also help keep the building warm.

For insulation it is possible to use improvised materials - foam rubber, soaked paper, window tape, etc. It can also be arranged energy heating of a window or glass unit. To do this, a heating cable is placed around the perimeter of the window , and a special conductive film is placed on the glass.

Application of heat-saving film
Insulating film for windows helps keep warm in the house. To create the desired effect, the surface must first be properly prepared. Of the tools, we will need a hair dryer, scissors, and a knife. The surface is cleaned of dirt, glass is rubbed well. Double-sided tape is glued along the perimeter of the glass box.

Film is split with a utility knife, cut to size and glued onto tape. The film is exposed to warm air from a hair dryer. If small bumps form, they will need to be burst with the tip of a knife. This is perhaps the most economical method of insulating plastic windows.
In any case, a correct comprehensive approach is needed for a high-quality result.

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