How to insert double-glazed windows in a wooden house. How to install a plastic window in a wooden house yourself. Why is it better to install a PVC window?

(Last Updated On: 02/03/2018)

Installation of PVC window in a wooden house

Plastic windows are used today almost everywhere - in residential buildings, in administrative buildings, in city apartments, and in country houses. At the same time, it’s one thing to glaze a rigid opening in a reinforced concrete panel with “plastic”; there are no special problems here; however, the installation and installation of PVC windows in a wooden house is much more complicated - the openings in its walls need to be properly prepared and strengthened so that the heavy window holds firmly on in its place.

The correct technology for glazing a wooden house with plastic windows first of all requires complete shrinkage of the house. Until the structure of the house and its foundation have taken on their final shape and position, it is not recommended to install windows - if certain elements move, damage to the window unit and double-glazed windows may occur. Therefore, we built a house, let it settle and settle into a permanent place, and after that we began glazing with PVC windows. This requirement is equivalent to all other wooden buildings, be it a bathhouse, barn, gazebo, etc.

To prevent damage to the window unit due to unexpected movement or shrinkage of the walls, you need to make a frame in the opening. This is a structure made of molded timber that is mounted in the opening.

In order for the window frame to take its rightful place, you need to cut out the central tenon on the sides of the window opening in the opening. To do this, we divide the surface of the opening into 3 segments, leave the central one in place, and remove the side ones by about 5 cm. Before installing the elements of the frame, you need to cover these resulting protrusions with tow - it will prevent squeaking and increase thermal insulation.

Naturally, you need to prepare a recess in the elements of the pigtail. To do this, you need to take a beam of the required size and a cross-section of about 10-15 cm and hollow out a recess for the tenon along the center line. You also need to remember that the length of the beam should be approximately 5 cm less than the opening and at the same time larger than the window by 5 cm.

Window sill installation

When the pigtail is ready, you can begin installing the window sill. We must not forget about this - first the window sill, and then the window! The process of working with a window sill is described by the following instructions:

• you need to cut grooves of small depth in the sides of the box for the window sill, without them the window sill will not hold well;
• then, using thin spacers made of wood or plastic, we level the surface;
• We insert the window sill into the grooves and fasten it with self-tapping screws. The fastening must be done so that the screw heads are hidden by the window lining, and rubber washers must also be placed under the head.

Window installation

When the window sill is installed, the installation and installation of PVC windows begins - in a wooden house with a small number of storeys, you can do it yourself, especially since the cost of specialist services when calling them outside the city will be rather high.

• first we prepare the window block, dismantle all the sashes and removable double-glazed windows;
• then we insert the box into the opening and level it with the help of bars;
• We fix the window with anchors, they should be installed from the sides and top;
• the space between the window and the opening is filled with polyurethane foam.

If the window is level, you can return the double-glazed windows to their place; they must be fixed with a special bead. Then the sashes are hung and the window fittings are adjusted. When everything is in place, all remaining cracks are foamed; it is also a good idea to seal the joint between the window and the window sill with sealant. Don’t forget to foam the cavity under the window sill as well.

The final stage is the installation of the low tide. It is leveled, fixed with self-tapping screws, and foamed in several places.

Do-it-yourself installation (installation) of metal-plastic windows. Instructions for installing metal-plastic windows

At the height of the renovation season, the most common type of work is the installation of metal-plastic windows. To be more confident that the workers you hire fully comply with the technology for installing metal-plastic windows, it’s a good idea to know the main stages of this process yourself.

IMPORTANT! To make cuts, do not use a metal wheel due to the risk of it breaking.

It is better to take a regular saw or grinder with a circle on concrete (the latter, however, will create a lot of dust).

Photo 1 - Cuts in an old window frame for dismantling

• The frame is removed piece by piece using a crowbar. We dismantle a wooden window sill in the same way as removing a frame; concrete window sills in good condition are not dismantled, but after completion of all installation work they are covered with tiles or any other covering with a layer of insulation.

• We clean the window opening, prime it and after the primer has dried, apply markings: mark the places where the window is fastened.

  The fastening pitch should be no more than 70 cm on each side of the window. The extreme fasteners from the corners of the window frame should not be removed more than 5-15 cm.

• The screws used to fix the frame must be fixed in the metal inside the PVC profile (by the way, the presence of a reinforcing component is what distinguishes a metal-plastic window from a simple PVC window).

  Installation of metal-plastic windows should be done only with special metal screws (4 mm in diameter).

  Installation and installation of PVC windows in a wooden house - there is nothing complicated

  Drills are placed at the ends of such self-tapping screws to ensure that the fastener enters the material.

When using another fastening screw, you will first need to make holes in the window frame and then insert the self-tapping screw into them.

If the window size exceeds a square of 2x2 m, you need screws 12 mm in diameter.

• Another fastening element is the anchor plate. We place fasteners along the perimeter of the frame at the previously marked points. We insert the frame into the window opening and mark on the surface of the walls the places for drilling the second row of mounting holes. The recesses for placing anchor plates should extend into the walls by 2-4 cm - this will make it easier to carry out work on installing slopes and window sills later on.
• We align the window strictly horizontally using the mounting level.

  To do this, we place wooden wedges under the window frame, where necessary.

Photo 2 - Leveling the window. Using wooden wedges

• We fix the top anchors, and then the side ones.
• Having strengthened the external waterproofing with the help of PSUL, we fasten the ebb going under the window with self-tapping screws 4 mm in diameter and 9 mm long.
• We adjust window fittings and put double-glazed windows in place.
• You only need to foam the gaps between the frame and the window opening when the windows are closed!

  It is prohibited to leave windows for ventilation during installation, otherwise the mounting foam will bend the profile in an arc, which will lead to cracking of the glass and damage to the window. Foaming of wide gaps (from 2 cm or more) should take place in stages with a break of 1-2 hours. After drying, the foam must be protected from ultraviolet radiation with a special sealed film, plaster or panels.

IMPORTANT! After foaming, the window must remain closed for at least another 12 hours.

• We install a window sill.

  After taking measurements, the blank for a window sill of standard sizes is adjusted to the length and width of the window, taking into account that the window sill should go under the window and should also be slightly recessed into the walls on the sides.

If the measurements are correct and when trying on the window sill, the slab fits under the window a little tight, you can start fixing it. The window sill must also be leveled, placed on wooden wedges and secured with adhesive or polyurethane foam. In the latter case, spacers or a weight are placed on the window sill for at least 12 hours so that the foam, when expanding, does not knock down the exposed horizon.

Photo 3 - Leveling the window sill

• We install fittings on windows.
• We install slopes (technologies for installing plasterboard, plastic or plaster slopes vary).
• We seal the joints of the window elements and clean the frame from the protective film.

Installing metal-plastic windows with your own hands is also possible, but to do this you must know about the technological details of the process or purchase metal-plastic windows, the installation of which you will be able to install, following the factory instructions.

$ Installation of metal-plastic windows.

The cost of installing metal-plastic windows will directly depend on the type of window (fixed, hinged or combined), the type of wall opening and its condition, the construction of the installation seam, the season of installation, as well as the total scope of work. On average it is $20-30 per m².

The estimate for the installation of metal-plastic windows must contain the entire list of works: delivery, lifting to the floor, dismantling old windows, removing garbage, installing windows, sills, window sills, slopes, etc.

• Kyiv - from 350 UAH.

  for the installation package;

• Moscow - from 4,100 rubles. for the installation package.

Shrinkage is a natural and inevitable process in all wooden buildings. In this regard, the installation of plastic windows in log houses differs from standard installation.

The highest percentage of wood drying was observed in the first two years after the completion of the log house. The height of the walls, as a rule, is reduced to 1.5 cm per meter of masonry. How to insert a plastic window in a wooden house?

What devices are needed to achieve this goal? The answers to these and many other questions are presented in this article.

Casing

The main stage of installing double-glazed windows in a wooden house is fixing the frame in the window opening. The casing ensures the independence of the windows from the load-bearing walls of the structure.

In other words, when the frame shrinks, the window structure remains “intact” and is not subject to deformation vibrations. The window frame takes on all shrinkage loads and strengthens the walls of the building in the area of ​​the opening.

The casing is a box made of thick boards. They install it in the opening, after which they install PVC structures.

The box is held in place by grooves located in the side posts. It is unacceptable to use any fastening elements, including polyurethane foam. A compensating gap is left above the structure itself, designed for the maximum amount of shrinkage of the logs.

There are several options for installing the pigtail:

• cutting a groove in a log and placing a wooden block in it. Self-tapping screws (embedded block) are screwed into the last of these elements through the side posts;
• sawing out a tenon at the end of the opening log and cutting a groove in the side posts of the box (the “into the deck” method);
• the location of the tenon is on the side posts of the structure, the groove is at the end of the opening logs.

Preparing window openings

It is quite possible to install high-quality plastic windows in an old wooden house with your own hands.

How to install plastic windows in a wooden house

The main installation rules are to follow the sequence of actions and take into account the construction features.

First, measure the distance of the window from the base of the floor. The most optimal parameter is 80-90 cm. Ideally, the window sill is installed above the desk, the standard height of which is 80 cm. The upper and lower boundaries of the window opening are marked using a professional tool - a water level.

Its height should exceed the same parameter of the inserted plastic window by 13 cm, and its width by 12-14 cm. Plus, 1.5 cm is left on each side for sealing with polyurethane foam.

The next stage is preparing the window opening (measurements, installation). Using a building level, markings are made for cutting it. Maximum accuracy in measurements and installation of the casing itself is especially important. The quality of the installation work will depend on this. After the opening is ready, a tenon is cut out at the ends of the logs on the sides of the structure.

The lower and side parts of the rough window are sheathed with jute.

A casing is made from well-dried wooden blocks, the installation of which is carried out starting from the window sill. The structural elements are fastened together with self-tapping screws, and the joining areas are treated with sealant. The small gap in the socket is filled with tow.

PVC window installation

The finished window is installed either perfectly aligned with the front edge or slightly recessed into the house.

Fix the frame to the previously fixed structure using self-tapping screws, having previously drilled holes for them. You can insert double-glazed windows into a wooden house (not made of timber), taking into account all the details. We are talking not only about the accuracy of markings and the choice of high-quality material for casing, but also about the correct selection of fasteners for fixing the window.

External waterproofing of the seam can be done in various ways: vapor-permeable or self-expanding sealing tape, one-component acrylic sealant.

They will protect the polyurethane foam from moisture and direct sunlight. On the inside, the seam is covered with vapor barrier tape. Glue it until foaming to the end part of the frame with a thin strip. After the seam is treated with polyurethane foam, the protective paper from the adhesive strip is removed and glued to the casing. The window sill is installed and the starting profile is screwed to the edge of the frame before the sealing mass hardens.

Instructions for installing wooden windows.

The main feature of installing window structures in a wooden house is that for the entire service life of the frame, unlike a concrete, brick or stone house, it behaves very unstable.

In other words, wooden structures have the property of “shrinking”. And if you don't take this instability into account during installation, serious problems can arise.

There is an opinion that the frame does not shrink until the first year after installation, and then the house does not change its parameters.

How to install PVC windows in a wooden house

But it is not so. In fact, a wooden house stands, this is especially noticeable in the first year, and then, for at least 5 years, this process does not stop (and in some regions, depending on weather conditions, the log continues to shrink throughout its life).

As the wood (timber or logs) has dried, the height of the house wall for each foot of wall can be reduced by 1.5 cm. If the wall height is 4 meters, the frame can be "compressed" by as much as 6 inches. And now I can imagine what will happen to the window if you leave only a standard gap for installing foam plastic 2-2.5 centimeters thick? It is correct that the frame is at least deformed and the wedge will be jammed.

However, installing metal glass windows in a hall is a very viable option.

However, only on condition that the opening is installed by an observer (or, as it is called, it is an okosyachka system), which will ensure independence from the window by building the envelopes (walls) of the house and taking care of all the loads. In this case the window:

• Do not allow magazines to move out of the vertical opening of the window;
• does not interfere with the vertical deviation of the walls;
• Strengthens closed structures in the area of ​​window openings.

To have an idea of ​​how the window is installed in the corridor, we have prepared detailed instructions describing all stages of the installation work.

First, let's look at what a chassis is and what parameters the system currently uses.

Main housing options (end)

The simplest design is a 50x50cm piece of wood inserted into a vertical groove of the same size, with the end of the log in the window. This window version is only used when installing wooden windows. And since we are thinking about installing a metal-plastic window in a log cabin, there is no need to carefully consider this option.

In the second version of the window, a tip (the so-called comb) is made at the ends of the magazine, on which a gun holder with grooves is installed.

Window hinges - vertical beam size from 150 to 100 centimeters, excluded at the ends of the grooves 50 50, which are inserted into a plate of size 150 to 50 with tenons at the ends (horizontal bridges).

Due to the log of the log, when the house's compression slips into the groove, do not press the window structure or deflect vertically.

Sometimes the tip is made on a dolly, but the groove is in the logs, while the basic operating principle of this version of the body is not changed.

Be careful!

When assembled, the window should be 7-8 centimeters higher than the window opening (this line remains to be shaken in the house).

Instructions for installing plastic windows in the hallway

The window is configured like this:

• The hole houses the lower part of the housing
• combs are packed in bagged bags (intermediate insulation)
• the ridges on the window frames are filled
• At the top holes, the top bridge is inserted and lowered into the gutters.

The entire structure is secured with screws.

In this case, you need to make sure that the screws do not "lock" the ridge, otherwise the case will not be useful. The cracks between the logs and the casing are jammed like hell. By the way, the curtain not only seals the holes, but also saves you from debris when the house shrinks.

Further installation of metal-plastic windows in a wooden house is practically no different from the usual installation of window structures in an apartment. In other words, the usual window installation is carried out in accordance with steam, noise and thermal insulation, a detailed description of which can be found in the article “Features of installing windows with your own hands.”

The range that remains between the walls of the frame and the windows is filled with small thicknesses, which are pre-wrapped with a stick.

Since the house sits, the slabs must be replaced with others that are more suitable. To make it easy to change panels, the panel on which the panels are installed is attached to the window only. So when replacement is necessary, simply remove the piston, change the boards and place the clipper in place.

An experienced specialist must know not only the technology for installing metal-plastic windows, but also the technology for building a house.

Only in this case, it will not be able to correctly determine whether the window structure can be installed in each individual case, but also, if necessary, install the classic frame into the hole.

If your obsady bunker role is wearing a box that was left over from old wooden windows (in other words, when you removed the lining to most accurately measure the hole, they discovered that okosyachki did not), then installing plastic windows has two options:

changing the window panes below the window;

2. Significantly reduce the transparent part of the window, because the thickness of the window + frame + foam gap is added to each side of the window structure.

And most importantly, never agree to install a metal plastic window in the hall without first installing the window in the hole.

Even if your house has been standing for decades, and you think that the frame is already completely “compressed”. Remember that wood is a “living” material that “breathes” throughout its life with all the ensuing consequences.

Plastic windows are firmly established in modern construction. They have many positive advantages, which allows them to be used in various types of buildings, including wooden construction. But the specialty of their placement in a wooden house differs from installation in classic brick buildings. So how to solve this problem? How to insert a plastic window into a wooden house?

Differences in installing metal-plastic windows in wooden houses

The main problem with installing plastic windows in wooden structures is that the structure of the wood is greatly reduced after construction due to drying of the material.

Yes, and with further use of various types of movements they are possible.

Depending on the building material, shrinkage per meter of building height is associated with such indicators.

But in general, the movement can be up to 300 millimeters.

Therefore, all builders advise not to carry out finishing work in the first year of building a wooden house. When inserted in accordance with generally accepted requirements, windows simply deform under such pressure. But what to do, do not leave the same house without windows, the more seasonal changes continue, depending on the humidity and ambient temperature.

At the first stage, it is necessary to carry out some preparatory work.

If the house has just been built, it is necessary to remove construction dust and debris, take measurements and draw a drawing of the future installation of the window system. An old wooden house requires the following preparation:

• Dismantling (destruction of old windows).
• Removing residues and residues.
• Measurements and calculations of the parameters of the next window.
• Restoring the condition of load-bearing wooden structures, trimming window openings (there should be no rotting or mold.

  The cleaned areas are cleaned and the wood set is puttied).

• Selection of manufacturer and order of window systems.

What you need to install windows

You need tools to replace or install windows.

• Electric drill with drilling series.
• Construction level and roulette.
• Chisels.
• Mallet.
• Screwdriver.
• Wedge wedges.
• Fastening elements (plates, screws).
• Collection of foam.

It is also advisable to have a partner involved because the windows are very difficult to install on their own due to the size and weight of the insulated glass.

Frame.

What is it, its type and design features

To protect the window from the walls, it is necessary to plan and install a so-called floating base, in which the double-glazed window frame - the casing - is installed. In particular, its presence is important for the veranda, where the length of the window system can reach several meters.

You can place wooden slats with an important hole.

Structurally, it looks like there are plates on the periphery of the aperture. The housing is secured with grooves, at points such as spacers, patch or other natural fibers, these cannot be sealed with spray foam. During installation, the gap is always at the top.

By using this design, the built-in double glazing will be protected from the effects of shrinkage.

The housing mounting method is divided into the following types:

• Fastening in the tip.

  Place thorns on the sides of the body, which are inserted into the grooves of the holes.

• In a built-in beam. At the end of the window aperture, insert the rod to which the stand is attached.
• On the rooftops. The ends of the window opening logs provide finials and grooves on the body.

The main thing when installing such a system is to ensure the accuracy of the installation; incorrect accounts will be overloaded with deformations and the inapplicability of such a system.

The design of the floating body reliably protects against mechanical stress when the wall moves due to shrinkage processes.

How to make a casing (window)

There are two production methods. It's just the exact groove system described above. The manufacturing technology of a complex window is different.

A ridge is inserted into the open window into which the gutter system is inserted.

This fixation is much safer, since the housing can slide and compensate for the pressure of the wall.

For this, a wooden beam is used, in which the intestine is cut with a chisel (depth about 5 mm).

On the window cut, use a saw to cut out the ridge cap to the dimensions that match the grooves. The end faces form the slot and the tip, which make up the entire system.

After preparation, the entire window system is installed in a window with longitudinal grooves. Wooden nails are used to connect frame elements.

Assemble the window, proceed directly to installing the plastic window.

Installing a window into a hole

I leave the windows open before installing.

To do this, twist and pull the top pin.

Gaps must be created at a height of 40 millimeters, at the bottom 30-40, on the sides up to 20 mm. Then fill them with precast foam. To do this, wooden frames are installed under the window frame.

You can set the frame in two ways.

Option 1.

Drill holes through the frame at the ends and attach them with screws. However, this method is burdened with a reduction in the tightness of the window system and, consequently, a decrease in thermal insulation. Use it only if it cannot be determined in any other way!

Another variant. Attach mounting plates (sold as a panel for attaching profile skeletons) to the outer edges of the frame.

The free edges of the plates are bent to contact the surface of the window and attach to the press.

DIY installation of plastic windows in a wooden house

In no case is it forced into the ridge on which the housing is attached.

In this case, it is necessary to strictly monitor the level of the frame in all planes. You cannot dock a window if one of the parameters is broken!

Once the frame is secured, the hinges are hinged and the wings hang.

Once the foam dries, you must take care to protect it from the harmful effects of ultraviolet light and temperature.

Plastic window cladding in a wooden house is an excellent option, but it can be made of wood.

And don't forget the swelling that protects the window and walls from excessive humidity.

The process of installing PVC windows in a wooden house requires precision and compliance with technology, if violated, double glazed windows do not provide the required time. Taking into account the installation rules, the service life of plastic windows in old houses increases by several decades.

Instructions for installing a plastic window in a wooden house with photographs and

Many people believe that installing a plastic window in a wooden house is a very difficult job.

This is due to the fact that wooden houses eventually become subject to natural shrinkage. But if you know the characteristics of the property and follow certain rules, nothing is truly impossible.

What to consider during installation

The configuration of window openings in wooden structures, although imperceptibly, constantly changes throughout its life.

This is due not only to the shrinkage of wood, but also to its ability to absorb moisture when deformed with temperature changes. Therefore, instability is characterized by the parameters of holes in such structures.

The recommendation that the installation of plastic windows can be completed within 3 years after the construction of a wooden building is not entirely correct. Shrinkage occurs in stages. Most of the moisture evaporates in the first year, but the process of “shrinkage” continues for many years.

Experts note that this period averages 5 years, in some regions (taking into account the climate) it never ends. This sets special requirements for the construction of a structural element, such as a window, that is installed when installing window frames.

Order for installation

Receipt

If the house is new, you need to check the window opening geometry.

Even if all dimensions were strictly maintained during construction, shrinkage distortion may occur.

PVC windows - no. The rectangle is strictly formed without any deviations. Therefore, the correct configuration of the window openings must be achieved (if movement is sensitive). The methods are numerous and simple.

The same applies to a house that is already in use. After removing the pre-installed window, the installation window of the plastic window is checked.

It is necessary not only to clean everything from dirt to the level, but also to carry out high-quality wood processing using antiseptic and non-flammable compounds.

Housing (casing) installation

This structural element is located in the window opening, regardless of the material from which the frame (window part) is formed.

It is in this context that it is attached. The task of the body is to eliminate the influence of the deformation of the walls of the house on the window, so that it is “independent” of various movements and arising mechanical loads in order to maintain its integrity.

How to install plastic windows in a wooden house

In other words, no matter how the aperture geometry changes (wall compression, mud base), it should not affect the structure itself.

There are several housing options.

The choice of the optimal dependence depends on the type of pillows (shaft, log), their characteristics and many other conditions. By the way, not all windows are suitable for PVC windows, which should be taken into account.

The "mounting" of the frame should be less than the opening of the window to prevent its destruction due to vertical displacements of the wall elements. Let's take as an example the simplest and therefore often used version of the window, which is suitable for “plastic”.

Each owner chooses the necessary tool himself. The main thing is to understand the principle of consent and action.

At the ends of the side walls of the hole, it is solved vertically, along the entire height of the recess (groove). He predicts it will be inserted into cars that are cut into (hole-sized) thick slabs along the center line, from which the "spike" is made.

For vertical wall movements, the projection will slide along the "groove" and the deformation body (and therefore the window) will not be exposed.

Alternatively, "tips" are made at the end of the beams (logs) and the grooves are sawn in a cart. But the operating principle is the same.

The bottom part (support part) is designed in such a way that it has "tips" on both sides, which are inserted into grooves on the side walls of the hole.

By analogy, the upper part of the frame is also located. Its fastening in one design is made using screws and knives. The main thing is that the case is not attached to the wall, and then the feeling of its installation is lost.

Window settings

PVC frames have special fasteners with which they are attached to the window.

When purchasing window units, you will need to understand (at the point of sale) how this is done, as different manufacturers of fasteners may vary.

When defining a window in a field, you need to slightly raise and fix this position (break), create a small difference (for further “penny”).

sealing

All gaps between the block and the window are fixed using polyurethane foam.

And their processing is carried out on both sides (inside and outside the building). After final drying, the excess can be cut off.

• “Plastic” is very sensitive to low temperatures - it becomes brittle.

  Therefore, installation of such products at -10°C or less is not possible.

• There is no point in buying uPVC windows if there is no casing on all the openings. It is their geometry that determines the size of the plastic blocks. This article describes all the rules for choosing a quality window - reading.
• The dimensions of the “spike” (“groove”) are usually selected at a height of 5 cm.
• It should be noted that it UV destroys the foam installation, so this “overflow” must be protected somehow.

Inserting a plastic window into a wooden house is not as difficult as it might seem: if you know some of the technical details, even a non-professional will be able to do it. It must be remembered that wood is a special living material, and all work must be carried out taking into account the future shrinkage of the house. Therefore, the technology for installing a plastic window in this case will be slightly different from standard installation. Let's look at each stage in detail.

Creating and preparing a window opening

How to properly install a plastic window in a wooden house? The success of the work depends, first of all, on a well-prepared opening: most often in a wooden house it is cut after the frame has been assembled, but sometimes it is done during the construction stage. In the first case, you can proceed to the preparation of openings only after the completion of the main shrinkage, that is, a year and a half after construction. The contours of the hole are drawn using a plumb line and level, and then very carefully cut with a chainsaw.

It is advisable to apply the markings at the stage of assembling the house, so that there are no dowels in the openings. The calculation is made so that the upper and lower logs are cut in half: this will allow you to easily install the casing on flat horizontal surfaces. When preparing the opening, it is necessary to take into account the size of the casing. Therefore, the width should be 14 cm larger than the frame dimensions, at least 12–14 cm larger at the top, and 7 cm larger at the bottom for installing a window sill and a layer of polyurethane foam.

If the opening is prepared at the assembly stage, it should be 10% smaller in width than planned. This is necessary; after the logs dry, it will take on the specified value. If you immediately give it a standard size, after shrinking it will turn out to be larger than necessary.

Before inserting plastic windows into a wooden house, you should carefully treat all the end parts of the logs and cover them with an antiseptic to protect them from rotting. In addition, the wood needs to be sanded to ensure a smooth surface. Often it has to be leveled in height: wooden houses rarely remain perfectly level after shrinkage. To ensure that the frame fits correctly, you should level the hole using a laser level and a plumb bob.

Casing installation

If you want to understand how to properly insert plastic windows into a log house, it is important to understand the installation of the casing. This design is also commonly called a window frame: it is designed to protect the window opening from the effects of shrinkage. The frame is an additional frame that is mounted to the end parts of the opening logs according to the sliding principle: the logs will gradually fall along it and will not cause harm to the frame.

To create a moving connection, several installation options are possible:

• A rectangular groove 5 cm wide and deep is cut out in the end part of the logs and in the side parts of the casing. A block of the same size, wrapped in insulation, is inserted into it. When lowering, the logs will gradually slide along the block, the casing will remain in place, and the window blocks will not be damaged.
• A groove 5 cm deep and wide is cut out of the logs, and a T-shaped structure of a timber frame is inserted into it. The tenon should fit tightly into the groove; to get rid of squeaking, it should be wrapped in insulation.
• There is also a reverse option: a tenon is cut out in the logs of the opening, and a socket groove is mounted on it.

In all cases, the vertical elements are installed first, and the upper and lower horizontal boards are mounted to them. In some cases, the pigtail is installed without the lower part. A gap of approximately 7 cm is left above the top board: it will gradually decrease as the walls are lowered and will completely disappear after a few years. For a while it is filled with insulation so that the heat does not escape outside.

The casing box must not be installed on mounting foam; it must not be used to fill the upper gap. This is an inelastic material, it will not shrink, so the casing will simply lose its meaning and will sink along with the house itself, breaking the frames.

The pigtail, like other wooden elements, is treated with an antiseptic. After the protective layer has dried, it is ready to install the plastic block.

Design selection criteria

When deciding how to properly insert plastic windows into a wooden house made of timber or logs, you need to study the manufacturers' proposals. Plastic window systems are selected according to several parameters:

1. The number of chambers in the profile determines the thermal efficiency. Manufacturers offer three-, four- and five-chamber profiles. A four-chamber one will be quite sufficient for the conditions of the middle zone: thanks to the air layers, it will not freeze and will be quite durable.
2. Type of glass unit. The more air chambers and sheets of glass it has, the more powerful a heat insulator it will be. However, three-chamber double-glazed windows are very expensive, they are heavy and require high-quality fittings.
3. Type of fittings. You cannot save money by choosing a set of accessories. The performance of the handle, the ability to select operating modes, as well as the strength of the frame itself depend on it. If you choose a cheap option, very soon the window will begin to sag and will not close well.
4. Manufacturer. The classic option, guaranteeing excellent quality, is the original German systems Rehau, KBE and others. However, their complete analogues are now being manufactured in Russia, which cost significantly less. In addition, we must remember that it is more profitable to purchase any products and designs directly from the manufacturer, in which case they cost a significantly lower amount.

In addition to the frames themselves, you need to purchase handles, ebbs, window sills, additional accessories, as well as platbands that will cover the installation seam. Typically, installation companies offer a complete installation kit along with the window unit. It can be supplemented with anti-burglary fittings, special child locks, a “comb” for ventilation, etc.

Window sill installation

Dust and debris are removed from the opening with the casing already installed, and the surface is cleaned. After this, a window sill is installed: it is the base for the window, so it needs to be mounted as evenly and accurately as possible. To install it, you need to make 8 mm notches in the window frame; the window sill itself is attached to the bottom of the casing or the bottom log with self-tapping screws. It is advisable to place special washers under them so that the plastic does not begin to crack.

The window sill must be strictly horizontal, so after installation it is checked with a building level. If there are any deviations, plastic or wooden wedges are placed under it.

After installing the frame, the places where the screws are attached will be invisible; they will be completely hidden by the box. A window sill can be not only plastic: it can be made from natural or artificial stone, wood, and other materials.

Frame installation

How to properly install plastic windows in a wooden house? When all the preparatory work is completed, you can proceed directly to the installation of the window system. The protective film is not removed from it until the very end of the process, this is guaranteed to protect it from damage. A handle is pre-attached to the frame, as shown in the instructions supplied by the manufacturers; sashes with double-glazed windows can be removed during installation; working with an empty frame is much easier.

The step-by-step installation process is as follows:

1. 4 holes are drilled in the side posts of the casing and in the side parts of the window for installing fasteners. The distance from the top and bottom edges to the hole should be 25–30 cm; this arrangement of fasteners will ensure even distribution of the load.
2. The window frame is placed in the opening, after which it is leveled using a building level, a plumb line and spacer bars. When it takes a perfectly level position, it is attached to the casing using long self-tapping screws.

Important! Self-tapping screws should not pass through the casing and screw into the wall. The block is attached exclusively to the casing, otherwise its installation will be useless, and the plastic block will suffer from shrinkage. The casing is connected to the house movably, and the logs will gradually take their places, while the window frame must be motionless.

3. The doors with double-glazed windows are placed in the box. It is important to make sure that the frame is not skewed and that the doors open and close freely and clearly.
4. After all checks, the spacer bars are removed, and the space between the casing and the box is filled with polyurethane foam. After drying, it will provide an airtight seal and will reliably protect your home from the cold.
5. The last stage of the work is the installation of the drip tide: it will drain rainwater from the wall and prevent moisture from entering the house. The ebb is cut to the required size and attached using self-tapping screws. The seams filled with polyurethane foam are covered with decorative trims.

Knowing how to properly insert double-glazed windows in a wooden house, you can completely glaze the building without the help of specialists. If installed correctly, plastic window structures last a long time and perfectly protect the building from the cold, and this work is not so difficult to cope with.

The thickness of the polyurethane foam layer should be at least 2 cm; you cannot skimp on it. For greater reliability and tightness of the connection, the space under the window sill can be coated with a special silicone sealant. This is a good additional protection against blowing.

In any case, the polyurethane foam will have to be protected from sunlight: it is destroyed under the influence of ultraviolet rays. Carved trim or decorative shutters will help, which can become an important element of home decoration.

All installation work is recommended to be carried out at positive temperatures. Plastic changes its structure in severe frosts: at -10 and below, it becomes brittle and can very easily become damaged. To avoid unnecessary problems, choose the right time for installation.

Installation of plastic window blocks requires increased attention to the correct angles and compliance with vertical and horizontal lines. Even a slight misalignment can subsequently lead to increased load on the fittings, which will negatively affect the operation of the entire structure. If the sashes are skewed, they will begin to creak and close poorly, and the hinges will quickly become unusable.

And once again: installing windows cannot be done immediately after building a wooden house, even if it is built from dried lumber. It will take at least six months for the logs to finally take their places, then the installation will be safe.

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Before starting the actual installation, it is necessary to carry out a number of preparatory measures:

• dismantling the old window (if replacement is taking place);
• cleaning the opening from dirt and construction debris;
• make the necessary measurements and calculations;
• drawing up a drawing and recording the opening measurement parameters;
• aligning the contours of the sides of the window opening if the hole has an irregular shape;
• leveling is carried out using putty or sealant;
• decide on the design and functionality (number of doors, their size, which of them will open);
• decide on the manufacturer and color of the product.

Only after completing all of the above manipulations do we order a window from the manufacturer, taking into account individual wishes.

Stage No. 2. Installation

Once the windows have been delivered and the necessary preliminary work has been carried out, you can proceed directly to installation. Tools:

• drill;
• construction level;
• chisel;
• screwdriver;
• roulette;
• mallet;
• pliers;
• anchor plates and bolts;
• window adjustment key;
• polyurethane foam;
• spacer wedges;
• spray bottle with water.

Important! It is not recommended to install a plastic window in a wooden house during strong winds and at low temperatures (not lower than -10 degrees).

Casing: purpose, types and design

The casing is a box-shaped structure, which is made of three or four boards and installed around the perimeter inside the opening.

The system allows you to install a plastic window yourself, so that the window is fixed independently of the main structure of the wall and has a floating character. The window system is secured using grooves on the side, which are placed on tenons protruding from the end of the logs and beams.

To fix and seal the casing, only tow, flax batting or fiber insulation are used. Never use polyurethane foam.

Attention! A gap is left at the top based on the wood's settlement.

Thus, shrinkage of the walls of a wooden building does not in any way affect the window, much less damage it. Depending on the fastenings, casings can be classified into the following types:

• into a thorn This design is characterized by the presence of a tenon, which is mounted on the side parts of the casing, and a groove, which is located in the logs of the opening;
• in the embedded timber. The basis of the fastening is considered to be a block, which is placed in a groove at the ends of the opening and passes through the casing posts;
• into the deck. The tenon is located at the ends of the window opening logs, but the groove is in the casing posts.

The box is a floating mechanism, which prevents deformation of the plastic window during operation, regardless of the type of installation of the casing.

Calculations should be made with high accuracy, since even a minor error can lead to deformation of the window frame or leakage of the structure. In addition, correct installation is the key to the quality of the plastic window itself.

How to make a pigtail (casing)

The design can be of two types: complex and simple. A simple window frame is the system described above, with bars and grooves. The complex design is performed somewhat differently: a ridge is cut out in the window opening, onto which a carriage with grooves is placed. This option is more reliable. When the walls shrink, the ridge can slide and does not allow vertical deviations, eliminating pressure on the window frame.

The casing is usually made of timber. Using a wood chisel, a 0.5 cm groove is knocked out in the center of the beam, and a tenon (0.5x0.5x.25 cm) is cut out from one end. A ridge with 0.5x0.5 cm spikes is cut out from the end of the opening logs. You can use a saw or chisel for this.

Important! Marking the ridge is an important point. The quality and reliability of the design depends on the accuracy of the markings.

After the ridge is ready, we proceed to install the risers and form the structure of the opening between them. The beams are installed level, taking into account the gaps for wall shrinkage (1 cm on the sides and 0.5 cm on top). The frame made of beams is strengthened with the help of grooves with the main fabric of the walls and dowels between them. The gaps left are sealed with tow or other fiber. That's all, now you can start installing the plastic frame directly. You can watch the process in more detail in this video:

Stage No. 3. Installation in the prepared opening

After carrying out the necessary preparatory work and installing the frame, you can begin installing the window.

Attention! Installing plastic windows in a wooden house without casing is the wrong option.

To begin with, we check the dimensions and location of parallels, the gaps between the casing structure and the frame. The margin for foaming should be: 4-5 cm at the top, 2-3 cm in width and height, 3-4 cm in the window sill area. Having made sure that the stock corresponds to these indicators, we proceed directly to installing the plastic frame.

The window is secured using special fasteners, which are sold at any hardware store. They are metal plates with holes.

Installation of a plastic window should be done level. If you neglect this factor, then you risk getting a structure with a slope, which significantly reduces the operational and aesthetic objectives of the window.

Advice! Before installing windows, the sashes are removed. This simplifies the design and makes it much more convenient to install it in the opening.

After the window is secured in the opening, it is necessary to fill the gap with foam. To avoid displacement of the structure during foaming, blocks are placed that will maintain the position of the frame without deviation. After drying, do not forget to remove it.

Fastening the window to the casing is done with care. In this case, it is necessary to choose the correct location for tightening the screws. Under no circumstances should a window be secured in the ridge area!

That's all, we finish the process by completely foaming the opening. We put the sashes on and let the foam dry.

We have presented the correct way to install a plastic window in a wooden house. This process can be difficult, so if you are unsure of your abilities, it is better to turn to professionals.

However, installing a plastic window yourself is a significant cost savings. We invite you to watch a video tutorial on how to install a window yourself:

When building a wooden house, the question often arises of which windows to install, wooden or plastic. Both have their advantages and disadvantages. Plastic structures are distinguished by lower cost and longer service life. They require minimal maintenance during operation. Therefore, most often people choose this material. But what are the features of installing plastic window structures in wooden walls? Are there any fundamental differences between installing windows in a new and old house? It is imperative to know the answers to these questions. So, we install plastic windows in a wooden house with our own hands.

Features of window structures made of polyvinyl chloride

Plastic windows are a structure made of a polyvinyl chloride frame with a metal profile inside and double-glazed windows. They come in double and triple. Air has been pumped out between the glass panes. The entire structure, assembled into a finished window, is completely sealed and provides all the necessary consumer properties. The characteristics of the materials, the production technology of profiles and double-glazed windows, as well as their assembly into a single whole, have made it possible to provide plastic windows with important advantages:

• They perfectly protect from the cold, thanks to double-glazed windows with vacuum and a plastic profile design.
• They have increased soundproofing qualities for the same reasons.
• Their windows are so perfectly adjusted that they eliminate any distortions when properly adjusted and installed.
• The service life of such windows exceeds 50 years.
• They do not require any maintenance other than cleaning and lubricating the hinges.
• They have an aesthetic appearance and a wide selection of profile models and colors.
• The cost of plastic windows is significantly lower than wooden ones with similar properties and quality.

An important point is that installing plastic windows is quite possible independently, subject to certain rules. If for brick and concrete walls it does not present any difficulty, then for the installation of plastic structures in wooden houses it is necessary to take into account a number of circumstances, which will be discussed below.

Installation of plastic windows in a wooden house to replace old ones

Thanks to their excellent consumer qualities, affordable cost and the possibility of purchasing in installments and on credit, plastic windows gradually filled a huge number of window openings even in old wooden houses. Today, an incredible number of companies are engaged in the installation of plastic structures on a professional basis. Often the cost of installing one window is up to 20% of its cost. At the same time, anyone who knows how to use a tool can independently replace the old windows in their home with new ones made of PVC.
To do this you will need some tools and materials:

• Electric drill or hammer drill with a set of drills.
• Gasoline or electric saw, nail puller or crowbar. For dismantling old jambs and frames.
• Hand-held circular saw. For making grooves on the pigtail.
• Building level. Necessary throughout the entire process. Without it, you shouldn’t even start replacing windows.
• Autonomous screwdriver.
• Plastic chisel. Needed to select a groove in the risers of the frame.
• Roulette.
• Mallet made of rubber or wood.
• Pliers.
• Anchor plates and bolts, self-tapping screws.
• Hexagon to fit window adjustment screws.
• Construction polyurethane foam. One window can take from 1 to 3 cylinders, depending on the size of the gaps.
• Gloves.
• Wooden spacer wedges.
• Water in the sprayer.

Installing windows requires at least two people, since it is impossible for one person to lift and level a massive window. One person must support the frame, and the second must carry out all the manipulations to level it and secure it in the slopes.
First, dismantling work is carried out. If the old window blocks can still be used somewhere, and you want to keep them intact, then you will have to tinker, disassembling everything carefully. To do this, first remove the frames, and then remove the window sill and the block itself, being careful not to damage it. Most often, in old wooden houses, only glazed frames can be used, and the blocks have already become unusable. In this case, they simply saw them in the middle and rip them out of the walls with a nail puller. The vacated opening is cleaned of debris and rot. If the log or beam under the window is rotten, and this most likely is the case, then they are also cut out and replaced with new ones. The joints are foamed with polyurethane foam.

When the openings are completely cleaned, you can begin finishing them before installing plastic windows. There are two options here: the block is inserted directly into the opening, which is incorrect, or it is first framed around the perimeter with a special frame. In the first case, you will only need to use a chainsaw to cut off the spike in the walls that held the old wooden window block. In the second case, you need to make a new pigtail. You cannot leave old jambs, even if they are in excellent condition.

It should be noted that if the house is not very old, then making a pigtail is mandatory. After all, even after 5–6 years, a wooden frame tends to shrink, which can deform the plastic blocks. The pigtail is made as follows. In a 100x150 mm beam, select a longitudinal groove having a width equal to the width of the ridge remaining on the walls. To do this you need a circular saw, an ax and a chisel with a hammer. Longitudinal cuts are made with a saw, and then the groove is finished with an ax and chisel. Using this groove, the resulting riser is installed vertically on the crest of the wall. You need two of these risers for each window. At the bottom of each jamb, select a tenon 50x50x25 mm. It is needed to fasten the lower bar, which is also spiked on both sides.

The risers should not reach 100 mm from the top log of the opening. This will allow the top bar to be inserted freely. It is necessary that it does not reach 45 mm from the log. All the frame bars are fastened together with dowels, and the joints are insulated with jute tape.

Installing a plastic window block requires special care and precision. If you neglect the rules, the window will not only open and close poorly, but may also leak or freeze in winter. The simplest way is to drill the frame and screw it directly to the walls with self-tapping screws. However, this is the worst and incorrect option, which violates the thermal insulation and tightness of the plastic block. The technology for installing plastic windows in wooden walls involves the use of a window frame.

For proper installation of PVC window blocks, special fastenings are required, space for which is available at the ends of any frame. They look like thin metal plates with perforations. The frames have technical slides along the entire profile edge. They are made in the form of a gutter with a hook. To make the window construction easier, you can remove the doors and vents by removing the pins from the hinges. Sometimes this may not be enough, for example, when installing windows at high altitudes. In this case, you can remove all the double-glazed windows so that only the frame remains. To do this, you will need a special device for pulling out plastic beads. Just do this carefully so as not to damage the double-glazed windows and not to break the tightness of the profile.

The frame is installed using a building level. Alignment is done both vertically and horizontally. The frame is first fixed with wooden spacer wedges. Before this, two identical 10 mm thick chips must be placed under the frame. This is enough so that you can foam the gap with polyurethane foam. This is required by the technology for installing plastic windows. The leveled frame is secured using fasteners to the frame in several places.

After this, the window is completely assembled and the sashes are hung. Attention! Installation of double-glazed windows must be done correctly. Inside the frame there are deformation pads made of soft plastic. They must be located on all sides of the glass unit so that it does not come into direct contact with the profile anywhere. This is necessary to ensure that the glass does not crack as a result of accidental deformation. Since the glazing beads have corner cuts at the edges, they are not so easy to insert into place. To install a glazing bead, one of its edges is inserted under the previous glazing bead perpendicular to it. Then they bend it in the middle and carefully insert it under the second one. Only after this is it pressed into place.

Properly installed glazing beads should not have any gaps with the frame. When installing them, you need to try not to damage the sealing rubber, otherwise water will accumulate in the frame. After installing double-glazed windows around the perimeter, foam is carried out, not forgetting to remove chips and spacers after the foam has dried. The resulting holes are foamed. Attention! If you foam the frame without assembling it completely and without hanging the sash, then when hardening the foam will deform it so that it will be impossible to insert or close anything.

Of course, installing plastic windows yourself in a wooden house has some difficulties, but if you do everything according to the instructions, following all the recommendations, then everything will work out for you, and the plastic windows installed by yourself will delight you for a long time, without causing any problems.

Now the only thing left to do is to install a window sill, ebb and line the slopes, both inside and outside. To install a window sill, it is trimmed so that it does not extend beyond the opening. Install it directly under the frame according to the level. To fix the window sill, it is wedged with wooden wedges between the walls. Bars are placed under the bottom so that it takes a horizontal position. After this, the entire space between the window sill and the slope is foamed. The ebb is also installed horizontally and the bent part is screwed to the frame with self-tapping screws. There are a large number of methods for finishing slopes, so we will not consider them within the scope of this article.

Installation of plastic window blocks in a new wooden house

Installing plastic windows in a new wooden house is somewhat different from replacing them in old openings. For obvious reasons, there is no need to carry out dismantling work here. Additionally, it will be necessary to form a ridge in the side walls of the openings. To do this, use a level to mark two parallel lines exactly in the middle of the wall. The distance between them will be 50 mm. Along these lines, cuts are also made with a depth of 50 mm. Then a line is cut on both sides of the wall at the same distance from the edge of the opening. The result will be a comb that will match in size with the grooves on the posts of the pigtail.

Another nuance is related to the fact that a new wooden house shrinks very strongly in the first year. In some cases it can reach 5 cm. For this reason, in the first year it is better not to install windows at all, but if there is such a need, then an adjustment for shrinkage is necessary. To do this, leave a gap about 5 cm wide at the top above the pigtail. It compensates for shrinkage and the frame will be unharmed. This gap can be filled temporarily with boards with soft insulation, so that after the main shrinkage it can be foamed. As the boards shrink, they are removed one at a time, allowing the gap to gradually narrow.

For wooden houses, you should not order ordinary white windows if you are not going to cover it with siding. Natural logs or beams are worthy of brown windows or having a color similar to the structure of the wood. If you make a wood panel on them, you will get a very beautiful combination. White windows are in dissonance with wooden structures.

We looked at ways to install plastic windows in wooden walls yourself. As you can see, the technology is quite complex, so it must be followed with great care. Remember that violation of the technological rules for installing plastic windows leads to their deformation or loss of positive qualities.

Due to their performance characteristics, double-glazed windows made of PVC material have gained particular popularity among the population. They are installed in buildings and structures made of concrete, brick, and wood. Installing plastic windows in a wooden house requires following certain rules.

Important installation details

When starting the installation, you need to prepare the equipment you will need: a building level and a plumb line, and also know how to insert a plastic window. It is necessary to install a PVC window strictly observing the placement in a level plane. This will ensure the correct operation of all elements; the doors will not open or close spontaneously.

The technology for installing a PVC window involves its correct placement in a level plane

When purchasing plastic structures, you need to buy additional special fasteners for installation. The frame is fixed in the frame of a wooden structure using self-tapping screws and special fasteners. By following the technological process and correctly installing plastic windows in a wooden house, you are guaranteed to receive window units that will last for a long time.

The window frame is secured using anchor plates

If you dismantle the sashes, the structure will become much lighter and it will be easier to move it, however, installing metal-plastic windows in a wooden house alone is still not recommended. To remove the doors, you need to remove the pins from the hinges.

How to install PVC double-glazed windows

Do-it-yourself installation of plastic windows in a wooden house is carried out in stages:

• preparatory activities before installation;
• installation of PVC windows;
• control and verification of location in space;
• blowing with foam.

To understand how to install plastic windows both in a wooden house and in a timber or log house, let’s look at each stage in more detail.

Carrying out preparatory work

First of all, you need to take exact dimensions by measuring the opening and order the window structure from a trusted manufacturer. To do this, most often they invite a representative of a company that produces plastic frames. You can take measurements yourself. After this, they determine the color of the structure and the completeness of the fittings necessary for the functioning of the window.

When the manufacturer delivers the product to the site, the following steps must be completed:

• if a decision is made to replace the installed windows in the old opening, first of all, it is necessary to dismantle the structure;
• after which they clean dust, dirt and remove debris that got into the opening from dismantling;
• It is worth aligning the opening if its geometry is broken.

Having completed the preparation, they insert a plastic window into a wooden house with their own hands.

Fastening the window structure into the prepared opening

We install the window sill first; it will be the base for the double-glazed windows, so it needs to be placed strictly level (horizontally). For fastening strength, notches are made on the sides of the box approximately 8 mm deep. Adjustment is carried out using plastic plates or boards. Fastening occurs with self-tapping screws to the bottom of the box. When screwing in, you should place washers under the screw head; this will prevent damage to the surface.

The window sill is installed strictly horizontally

The next step is to properly install the handle. The film that protects the structures should not be removed; it protects them from damage when the windows are installed. When attaching, the handle must be placed horizontally. When all the fittings have been assembled, the installation of metal-plastic windows begins.

First you need to level the PVC frame. A frame is placed on two-centimeter bars and leveled horizontally, using a water level. After this, they move on to vertical alignment.

Having obtained ideal parameters at the water level, they fix the frame with self-tapping screws to the frame, using mounting fasteners that were specially purchased in the store. It is important not to get the self-tapping screw into the ridge of the log where the socket is installed.

Secure the frame with self-tapping screws

After attaching the window element, we get 2-centimeter gaps around it for the mounting foam.

Before using polyurethane foam, you need to hang the shutters so that after foaming the frame profile does not bend and damage the window. It is important to remember that foam can only be used when the sash is closed..

Control and foaming of the structure

After hanging the sashes, you need to check how the double-glazed window opens and closes. If a window that is half open does not close or move further, then the frame is considered to be installed correctly and the alignment is correct. After closing the sash, foam it with installation foam and leave it for complete fixation for a day.

Why is casing made for plastic windows in a timber house?

To get high-quality PVC windows in a wooden house, you need to strictly follow the installation specifications, that is, install them to a special frame (base). The need for such a design is due to the characteristics of wooden buildings. Unlike a building made of stone (concrete or brick), a wooden panel house is unstable over a long period.

The casing prevents frame deformation when the house shrinks

The building will be completed within the first five years after its construction. In this case, the walls dry out up to 6 cm. This important nuance must be taken into account when installing a plastic window in a frame house. It is clear that you cannot simply insert a plastic window into a wooden house; you need to create a structure for the opening, which is called a casing, or they also say a window frame. Its direct purpose is to prevent the frame from being affected by wall shrinkage, so the socket:

• strengthens the opening;
• bears the load;
• prevents the effects of shrinkage.

The pigtail looks like a box made from thick boards. The structure is attached to the side rack on a groove, no fasteners are used. There is a gap left above the jamb to compensate for shrinkage for a wooden house. There are several options for installing it:

• A groove is cut in the log into which the block is placed. Self-tapping screws are screwed into the last element of the embedded beam;
• a groove is cut out in the racks on the sides of the structure, a tenon is cut out from the end of the log in the opening;
• A groove is made at the end of the logs, and a tenon is placed on the side posts of the box.

Casing options

To get a high-quality design, you need to follow the technology for installing plastic windows in a wooden house. To begin with, cover the ridges of the logs with insulation and secure it with staples or small nails. This stage is necessary to insulate the house and eliminate creaks. Then the lower crossbar of the casing is mounted, and carriages (side posts of the frame) are stuffed onto the ridges, and the upper jumper is placed in the upper groove of the posts. After collecting the box, carefully connect it with self-tapping screws, it is important that they do not get into the logs.

The gaps that are visible in the opening after installing the casing must be filled with tow or insulation. Then the standard installation of plastic windows in a frame house or log house takes place.

The cracks are sealed with insulation or tow.

The compensation gap is filled with flat boards pre-wrapped with tow. As the walls shrink, they are gradually knocked out. To do this, remove the top casing and, having knocked out the board, put it back.

The final stage when glazing a wooden structure

The final finishing after installing PVC windows in a log house is done in the same way as wooden ones, that is, after installing the frame structure and insulation, wooden platbands are installed. When ordering PVC windows in a wooden structure, you should take a closer look at the option with a wood texture, this will allow them to look harmonious against the background of the felled structure.

Many manufacturers of PVC structures offer not only the classic white color option for frames. You can order any shade that the customer desires. Colored plastic frames will cost a little more, but will be a more suitable option for a home made of natural materials.

When ordering, it is important to take the correct measurements of the opening and not make a mistake in the width of the window sill. Independently installing a PVC window in a wooden house if you know all the nuances is not such a difficult process. You can do it yourself, without resorting to the help of expensive installers.