Finishing of internal slopes of windows. Finishing plastic windows from the outside - types and methods, necessary components and work technology

Each of us sooner or later faces the installation of new beautiful windows. As a rule, old windows made of cracked wood are replaced by modern plastic structures. At the same time, after the dismantling of dilapidated wooden frames and the installation of new euro-windows, an untreated strip remains along the perimeter of the window from the inside, which has a width of 5-15 centimeters, depending on the design of the building. This strip is called a slope, it must be covered. Today we will talk about what it is for, and how to finish the slopes of plastic windows with your own hands.

The need for finishing window slopes

Facing slopes (the inside of a window or doorway) is the final stage when installing new doors and windows. First of all, this procedure is considered necessary from the point of view of aesthetics and completeness of the interior being created: the old slopes are destroyed after the removal of the old window, and it is necessary to close the foam assembly seam with something, which is formed during the installation of new window blocks. But also finishing the slopes allows you to improve the thermal insulation of the entire opening and get rid of many problems with windows.

Qualitatively finished slopes are not afraid of temperature changes, condensation does not occur on them, and the sound and heat insulation properties of the opening only increase. But often the owner of the window refuses to finish the slopes or puts this work aside. Many people have such thoughts: after all, the window is reliably foamed, then nothing will happen to it if it stays a little without slopes. Only, as a rule, it drags on for a long time, and the windows remain in this form for years.

1. The gaps between the double-glazed windows are most often sealed with mounting foam, which is an excellent soundproofing material. The sun's rays are destructive to this foam, and it quickly becomes unusable.
2. Foam in the hardened state increases the volume and “crushes” itself, therefore, after a while, a gap may appear between the frame and the foam layer, which will nullify all efforts to install a window or door.
3. Open foam is not a waterproofing material and tends to absorb moisture, which destroys the material when it freezes.
4. The foam, which is open for a long time, loses its thermal insulation properties very quickly: an increase in humidity by only 5% leads to a decrease in the thermal insulation of the foam by 50%.

You can wait with finishing the slopes with your own hands if your house or apartment is supposed to be renovated with redevelopment. In any case, you will have to start with the installation of new windows. We put windows - cover them with plastic wrap and continue the repair. And you can finish the openings at the final stage of repair work.

Plastering and painting slopes

The undoubted advantage of finishing slopes with plaster is its low cost. Before work, a dry mix based on gypsum or cement simply needs to be diluted with water. Thoroughly clean the surface near the double-glazed window, removing all dirt, dust and bituminous stains, and chop down the concrete in the corners. For good adhesion of walls (brickwork) and plaster, it is recommended to embroider the seams of slopes and corners by 10 millimeters.

After you plaster the walls that are adjacent to the window, you can plaster the slopes. Cover the walls with plaster, then level the slope angles. Remember that a new layer can only be laid after the previous ones have dried, so this method can be called very long, because the entire plastering procedure takes 2-3 days. Often the plaster layer turns out to be too thick, which is caused by the features and irregularities of the walls.

Apply a small amount of mortar to the slope groove, leveling it. Let this piece dry a bit. Apply some more plaster, smooth, continue until the slope sinuses are completely filled. At one time it is allowed to apply a layer with a thickness of about 5-7 millimeters. Level the layer in the direction from the bottom up, moving to the sides. Use a trowel to align the join lines.

When finishing window slopes with plaster, keep a small angle between the frame and the wall. Make sure the corners are the same. Before plastering on the top of the slope, you can fix a wooden lath with a perfectly horizontal even edge. You can fix it with gypsum plaster or nails. On the sides of the slope, you can also install slats.

It is recommended to level the plaster with a wooden bevel with a rounded handle. The width of the slope tells you how long to take the bevel. One end of the bevel is mounted on a box, the other on a wooden rail. It is possible to start leveling the edge of the corner between the slope and the wall only after the mortar has begun to set. Then a covering layer of plaster is applied and rubbed off.

To maintain the integrity of the mustache at the proper level, flat fisks or roundings are used. After the layers of plaster have dried, the slats are removed. Treat the remaining sides in the same way. The plastered corner should ideally be lapped with the surface of the walls without prayer, and the covering layer should have the same thickness of 22 millimeters along all slopes.

Remember that when working with plaster it is strictly forbidden to open the window. If the mixture gets into the fittings, it can damage it, as a result of which the window will not perform its functions well. And an even layer of plaster allows the window to open and close normally during the entire operation.

However, finishing the slopes in the old fashioned way with plaster has a whole list of serious drawbacks. The plaster mixture is not sufficiently securely connected to the PVC frame, which ultimately leads to the appearance of cracks between the surfaces of the frame and the slope. Due to the action of seasonal temperature changes and insufficient elasticity of the plaster, cracks form on the surface of the slopes. In addition, the heat-insulating properties of the plaster are weak, which leads to the formation of mold and condensation.

Finishing window slopes with plasterboard

Drywall slopes are already considered traditional. Preference is given, as a rule, to moisture-resistant drywall, which is resistant to condensation that occurs on the window. Or ordinary drywall is treated with a primer in several layers or with a moisture-proof composition. Moisture-resistant drywall has a high level of rigidity, good thermal insulation and increased thermal resistance.

The advantages of openings that are finished with drywall over plastic counterparts are the cheapness of the material and the possibility of quick repair of damage: you just need to putty the damaged area and repaint it. In addition, drywall is able to maintain optimal humidity in the room, absorbing excess moisture and releasing it back when the level of humidity in the environment is insufficient.

However, if the humidity in the room exceeds 75%, then the drywall may swell, losing its original characteristics. In addition, when choosing drywall for finishing slopes on windows, get ready for such negative moments. This material has a relatively low strength, and the created slope can be damaged as a result of mechanical stress. The created slopes require additional repairs over time, or rather, painting, as stains appear on the drywall.

Sheets of material are fixed on a wooden or metal crate (if the wall on which the window is located will be sewn up with drywall), on mounting foam (if the putty does not set well), on the appropriate glue or putty. The last method is the most common.

After installing the window, you need to cut off the excess foam and remove the old finish. Don't forget to prime the surface as well. If there are large potholes and cracks, they should be leveled with a plaster mortar. To avoid penetration of moisture into the drywall and prevent the occurrence of mold, it is recommended to impregnate it with a moisture-resistant composition before assembling the slope.

Then cut drywall. The sheet is marked according to clearly measured dimensions from the window or door opening, which are taken along the width of the part to be sheathed and the height of the opening. A correctly marked sheet of drywall is cut with a special knife, then the finished panels are tried on in size, the entrance to the starting strip and the slope from the frame to the wall.

The slope is assembled starting from the top panel. First of all, glue is applied to the edge of the panel. Glue is applied in a single strip, a couple of centimeters wide. Next, the panel is installed in the starting strip, pushed in more tightly, and the second edge of the drywall sheet is pressed against the wall. They also do the same with the side panels, which are inserted into the grooves and pressed against the wall with glue. All joints must be treated with a neutral sealant.

To prevent premature wear of the corner when finishing the door slopes, you can use painting corners made of galvanized steel or aluminum. In places where drywall enters the window profiles, it is recommended to stick a mesh tape so that cracks do not form there. After that, the surface is prepared for painting: 2-3 layers of putty are applied and the last layer is overwritten. You can paint drywall with oil or acrylic paint of any color.

Installation of plastic slopes

The most versatile type of slopes are plastic, in the constructions of which mineral wool is used, which gives the slope hydro- and thermal insulation. Plastic is a very durable material that can last for about 15-20 years. And now it is worth considering the arguments why it is rational to put plastic slopes:

1. Plastic slopes can be installed on the same day when you installed new doors and windows, and lining the openings with plaster, drying it and painting it takes several days.
2. PVC slopes are additionally a heat-insulating barrier between the street and the room.
3. Plastic openings have high moisture resistance, great strength and rigidity, they do not fade, do not fog up, and are also easy to clean.
4. The material of such panels corresponds to the material from which the double-glazed window is made, therefore they expand with the same temperature changes, and there is no excessive stress in the slopes.
5. Plastic slopes do not require additional painting work.
6. Door and window openings get an attractive finished look because they blend well with modern door and window designs.

Sandwich panels

Currently, when finishing slopes with plastic with their own hands, two products have become widespread: plastic wall panels and sandwich panels. Sandwich panels are 2 sheets of plastic, between them is a layer of foamed or extruded polystyrene. They are produced with a thickness of about 8 - 36 millimeters. When facing a window slope, it is best to use panels that are 1 centimeter thick.

Sandwich panels you can veneer slopes of wooden or plastic doors and windows, the width of which is 5 - 150 centimeters. The advantage of such panels is obvious: in principle, slopes can not be insulated, since the heat-insulating material is incorporated in the panel design. The disadvantage is that the sandwich panel can delaminate under the influence of moisture.

It is recommended to postpone the installation of such slopes for the next day, so that the mounting foam has time to dry completely. To ensure the best insulation performance, slopes must be installed at the same time as window sills. There are several methods for fixing sandwich panels to the wall, but it is recommended to use the most common and practical one.

The ends of the panels are fastened with dowels to the base of the slope, then fasteners and plastic decorative corners are installed. All seams adjoining sandwich panels to window sills, windows and door frames should be treated with PVC-based adhesive or neutral sealant. Unlike silicone sealants, they do not have a sticky consistency, as a result of which they do not become dirty or turn yellow.

Wall panels

Wall plastic panels are a less expensive facing material than sandwich counterparts. Plastic panels are colored or white hollow panels, inside of which there are stiffening ribs located across the sheet. The thickness of such wall panels is close to 1 centimeter, width - 25, 39 and 37.5 centimeters, length - 3 or 2.7 meters.

Such wall panels are recommended for use with slope depths in houses up to 25 centimeters, because with wider openings it will be difficult to achieve sufficient rigidity and strength of the coating. When facing slopes with such panels, it is imperative to create insulation from mounting foam or basalt wool. Do not forget to close the joints with a decorative corner.

Plastic wall panels are glossy and matte. Matte products are more often used, as they do not glare in the sun and look less pompous. It is also possible to find slabs in the "wood look" version of various shades, which allows you to finish the slopes in a wooden house in full accordance with the interior design.

Finishing slopes with decorative stone

In the interior, natural stone, be it granite, marble or onyx, is used quite rarely, as it is expensive and weighs a lot, which causes problems with transportation and installation, because not every wall can withstand the weight of such a cladding. Therefore, its place is gradually replaced by a light and inexpensive decorative (artificial) stone. This material goes well with wood, so it is often used to finish window and door slopes.

The composition of the decorative stone for cladding includes cement or gypsum, a variety of dyes and fillers. Perlite, expanded clay and pumice are used as fillers, so the weight of a decorative stone is approximately 2 times less than the mass of a natural one. And if you compare it with granite, the difference will be even more significant: artificial stone is 3-4 times lighter than natural stone.

But at the same time, decorative stone outwardly practically does not differ from natural stone, successfully imitating it. It can look like a brick, it can be "chipped" - one that has a knocked down texture and uneven edges, as if finished with a jackhammer. Sawn decorative stone with smooth, even edges is also on sale. Rubble stones resemble natural boulders of various shapes and sizes.

Finishing door slopes with stone can be done independently, since for facing there is no need to perfectly level the surface, which means there will be no labor-intensive work. For interior decoration, it is recommended to choose decorative tiles that have a thickness of 1.5 - 2 centimeters, and which are dyed over the entire thickness, since defects will not be noticeable in the event of a chip.

The presence of a textured side of the tile allows it to be mounted on any surface, and special rounded and corner elements - to create complex structures on slopes and openings. Therefore, preparing the surface for the installation of decorative stone will not take you much time. Make notches on a smooth surface to ensure high adhesion of stone plates with glue, and then prime the slope surface. After that, glue is applied to the surface of the walls or the sole of the glue using a comb spatula.

The decorative stone is laid in even horizontal rows and is perfectly glued to the surface with liquid nails. Align the plates with a level. If you need to cut platinum, you should do this: when gypsum is the main component of the material, you can use a hacksaw for trimming, and if cement is the base, you should use an electric circular saw.

The last step in finishing the slopes with a decorative stone is grouting when the glue finally sets. It is customary to seal the seams the next day, filling them with a special solution and smoothing with a rubber spatula. You can also lay artificial stone end-to-end without seams.

Finishing of external slopes with metal

External slopes perform several functions. The very first consists in the decorative concealment of a UV-sensitive polyurethane foam. Properly finished external slopes of window structures reliably protect mounting seams from the harmful effects of moisture. Water that enters the mounting foam degrades its thermal insulation qualities and causes the destruction of the material due to constant freezing and thawing, as well as expansion during freezing.

There are a lot of technologies for finishing external window slopes. The most popular option is plastering, but this method has many disadvantages. No matter what you do, there will definitely be a crack between the window frame and the slope. The use of plastic slopes for exterior decoration is impractical: plastic becomes brittle at low temperatures, and this is completely unsuitable for our conditions.

Therefore, it is worth paying attention to the metal slopes that were invented back in Soviet times. The main advantages of external slopes made of metal with a polymer coating are as follows. They increase the thermal insulation properties of the window seam, perfectly protect houses and apartments from freezing and blowing, do not rust, do not change their shape over time, and retain their color.

The only significant drawback of finishing the outer slopes with polymer-coated metal is the high cost. However, this is more than offset by long-term operation of products without the need for repairs. You do not need to plaster, whitewash, paint or finish metal slopes every year, which allows you to significantly save on finishing materials.

Thus, it becomes clear that the slopes must be made immediately after the installation of the window structure. At most, you can postpone this activity until the repair in the apartment is completed. Much will depend on the selected materials and the quality of the installation of the double-glazed window. Properly lined window openings will not freeze and get wet, as a result of which they collapse, peel off and become covered with cracks.

Today we will talk about finishing window slopes. Many do not attach much importance to this most important finishing component, but in vain.
Probably many had to deal with such a problem: they removed the old, wooden windows and installed new, plastic ones in their place. At first, everything was just fine, the windows are beautiful, they open and close easily, they do not require annual sealing, they fit well into the interior.

But a short period of time passes, and you notice that mold begins to form on the slopes, especially in the corners.

The acquisition and use of various modern household chemicals does not work. After a short period, the mold reappears.
So what's the reason?
And it is rather banal: the finishing of the internal slopes of plastic windows was done incorrectly, with gross violations. In this case, the appearance of mold is not a cause, but a consequence.

Consequences - visible and invisible

Realizing that many are concerned about the issue of fixing this problem with their own hands, today we will consider it in detail and here's why. Solving the question of how to get rid of mold on the slopes of plastic windows will help to understand at the same time that the technology for finishing slopes for plastic windows is different from finishing for wooden windows.
This understanding will help you avoid mistakes in the future. It is always easier to prevent than to correct.
First, we will address the issue of the formation of mold itself.

Hide

When creating their masterpieces, architects attached great importance to windows as the final stage in the formation of an architectural ensemble. Dimensions, shapes and functional purpose have changed over time and the requirements of architectural fashion.

The architecture improved, and with it, the windows became the dominant decorative wall motif. Having absorbed a variety of styles inherent in a particular era, the windows have acquired a laconic look and a classic shape. This element of architecture has a decorative character and surprises with functionality.

Plastic windows prevail over their wooden counterparts for a long period. Therefore, finishing the slopes of plastic windows and their installation does not lose its relevance.

Types of materials

More recently, slope plastering has been in vogue. At the same time, the adhesion of plastic and plaster was not very good. Very often, the seams cracked, due to temperature changes, the entire surface of the cladding cracked, hydro-, heat- and noise insulation was broken. At the same time, plastering is a complex and lengthy process that requires patience and accuracy.

With the help of modern developments, it is presented inside in several forms, which implies a choice based on the positive aspects of the materials.

With all the diversity, it is worth taking a responsible approach to the choice of materials, taking into account all of the above factors, before how finish window slopes inside .

Finishing window openings inside with plastic

Finishing window slopes inside with plastic has numerous advantages. Defining parameters:

• aesthetic appearance;
• duration during operation provides economic benefits;
• damage-resistant material;
• functionality.

In addition to the main characteristics, it is worth paying attention to the technological qualities of slopes:

• the presence of stiffeners (panelite);
• the content of foamed insulation (sandwich panel) ensures greater preservation of heat in the room;
• prevention of formation of condensate;
• tight;
• correct installation hides defects;
• interior window trim looks symmetrical and smooth;
• large color palette;
• a lamination procedure is possible to create a textured structure;
• matte and glossy surface;
• dust repellent surface
• comfort and ease of care;
• ease of installation design.

High-quality finishing of internal slopes of plastic windows serves as a guarantee of durability.

Necessary tools and materials

The interior decoration of plastic windows requires some preparation in terms of acquiring the necessary materials and tools:

• level;
• drill;
• construction knife;
• calculator (for comfort in calculations);
• F-profile;
• stapler;
• mineral wool (mounting foam, ponoizol);
• silicone (sealant, liquid plastic);
• staples;
• antifungal agent (primer, fungicide);
• small self-tapping screws ("bugs");
• plastic;
• choppers and slats (plastic, wood);
• masking tape;
• degreasing agent (alcohol, acetone).

How to do interior window trim

In order to finish, it is not necessary to resort to the help of qualified specialists. The easiest way, which is quite doable, is to decorate the windows with plastic with your own hands. It is enough to gradually revet the window opening.

• carefully cut off the remaining foam that protrudes;
• remove paint and old plaster;
• treat with an anti-fungal agent.

1. Panel cutting:

• make accurate measurements;
• put markings;
• cut at a 45° angle.

1. Mounting:

• fix the cut panels around the entire perimeter of the window opening with small self-tapping screws;
• carefully dock at the corners;
• with a slight mismatch, adjust the design;
• observe a gap of 3 cm between the base of the slope and the plastic structure.

1. Filling voids:

• foam for installation (mineral wool, penoizol) fill the perimeter between the old and new slopes;
• foam should not be filled in a continuous line, but at small intervals.

• F-profile corners cut at an angle of 45°;
• to fix the rail, use chopsticks made of wood or plastic;
• on masking tape, attach the profile with grooves to the end part of the plastic panel.

1. Finish:

• degrease the facing seams at the joints;
• fill them with sealant.

As a rule, finishing plastic windows inside takes no more than 3-4 hours, even in the absence of experience.

Reasons why you need to finish the windows in the house

The completeness and accuracy of the window create slopes, both inside the room and from the outside, and also carry a number of functional loads:

1. outdoor:
   • protection against destruction of mounting foam,
   • prevent moisture ingress
   • thermal insulation,
   • maintain sound insulation
   • UV protection.
   • I provide reliable adhesion of the window frame to the opening.

1. internal:

• decorative element,
• protection of waterproofing materials,
• eliminates condensation.

If the slopes are not finished on time from the outside, then the negative consequences will lead to the re-installation of the window block. These are additional expenses and money, and time, and forces.

After installing a new reliable double-glazed window, the window is not yet ready for operation. Particular attention must be paid to the slopes, which must be neat and of high quality. If this is not done right away, then over time the double-glazed window may even squint and re-installation will be required.

Why slopes are needed

When installing new double-glazed windows, the window opening is destroyed to some extent. But, even this is not the main reason why you should not hesitate to complete the slope. The fact is that in the process of installing windows, mounting foam is used, which collapses under the influence of sunlight.

Therefore, if you do not hide it with slopes, then quite quickly it will turn into dust, and the double-glazed windows themselves will simply stagger in the window opening. Therefore, this procedure should be dealt with either immediately after the installation of windows, or after a short time.

I must say that this work can be entrusted to the same company that manufactures and installs windows, however, before ordering this service, it is advisable to ask how much it costs to finish window slopes. It is possible that having learned the price, you decide that it is still more expedient to do this work yourself.

Finish options

To date, there are various options for finishing window slopes, then we will consider their features and, thus, you can decide for yourself which technology suits you best.

Stucco finish

This option for finishing the window opening is the oldest, however, to this day it has not lost its relevance. Much of its popularity is due to its cheapness.

In addition, this technology is very simple:

• First of all, the surface is cleaned of dirt and dust (if necessary, the surface is leveled for finishing).
• Then you need to dilute the gypsum-based solution.
• Next, the solution is applied with a spatula to the prepared surface and leveled over the entire area of ​​​​the opening.
• Cured plaster must be sanded and sanded.
• Next, a finishing layer of plaster is applied to the surface.
• After the solution has hardened, the surface can be painted.
• Then a similar procedure is performed on the outside of the window.

I must say that finishing the window slopes with plaster has only one advantage - this is its low cost, which depends only on the price of the solution. However, this is the longest finishing option, which can take several days. In addition, the process is accompanied by a large amount of dirt and dust, so all furniture must be covered with oilcloth.

But, in addition to this, there are more serious disadvantages of such a finish:

• The slope is "cold". The places adjacent to the frames often freeze through and condensation occurs, resulting in mold and fungus. The same applies to the windowsill.
• The plaster cannot be firmly bonded to the PVC profile, causing the finish to peel off the frame.

Therefore, it makes sense to give preference to a more expensive technology that will be devoid of these disadvantages.

Note!
When finishing slopes with plaster, do not open windows, as the solution can penetrate into the cracks of the fittings, which will affect its performance.

Plasterboard cladding

This technology has much fewer drawbacks, however, it is not completely devoid of them. In general, this is an average option, both in terms of quality and cost. As a rule, it is chosen in cases where the window opening is badly damaged.

Instructions for finishing windows with drywall are as follows:

• The base is pre-treated with antibacterial impregnation or primer.
• Then, from the required size, the corners are cut at a certain degree.
• Most often, there is a space between the wall and drywall, in which heat-insulating material, for example, mineral wool, can be laid.
• Then the panels are glued, for this you can use the starting gypsum plaster. To make neat joints, you can use a metal or plastic corner.
• At the end of the work, the surface is covered with decorative plaster, paint or liquid plastic.

This operation is performed quite quickly, besides, it is less dirty than plastering. However, such slopes are susceptible to moisture, so they cannot be used outside. In addition, the surface must be periodically painted or plastered.

plastic finish

This option is the most progressive, in comparison with all the above technologies. Finishing the slopes of PVC windows with panels is not afraid of moisture and does not require periodic repairs, but at the same time provides good thermal insulation.

In addition, due to the technical features, this material allows you to finish the slopes of complex shapes:

• arched;
• round;
• Bay windows, etc.

Among other advantages of such a finish, the following points can be distinguished:

• Cracks do not appear on the slopes;
• Mold does not form
• Dirt is easily removed with a damp cloth;
• Walls maintain room temperature.

Installation is very simple:

• Rails are attached along the perimeter of the slopes with self-tapping screws. You can pre-drill holes with a drill or puncher.
• Next, along the perimeter of the plastic window, you need to fix the starting profiles, which are also fixed, using self-tapping screws.
• After that, an F-shaped profile is mounted on the brackets. A panel should fit between its two tails. This profile is used to finish the junction of the window and the wall.
• The next step is to install plastic panels of the required size, however, before finishing the slopes on the windows, heat-insulating material should be laid in the resulting space. Then the plastic panel is inserted into the U-profile on the window on one side, and into the F-profile on the wall on the other.

This work is completed. If there is a desire to give the slope an ideal look, then the joints of the panels with the profiles can be treated with white silicone.

Advice!
Instead of an F-profile, plastic panels can be attached to the wall with liquid nails.

Sandwich panels

Another great option for finishing slopes is the use of sandwich panels. This material is the same PVC sheets, between which there is a layer of insulation. Therefore, they are a reliable barrier to moisture and cold coming from the street.

Installation is carried out as follows:

• First of all, the surface is cleaned of dust and dirt.
• Then, PVC profiles are flush mounted around the entire perimeter of the window box. They serve as starting rails in which the panels will be fixed.
• Next, from a standard panel with a size of 3000x1500 mm, it is necessary to cut the slopes of the desired dimensions.
• After that, the upper slope is installed - one end is inserted into the profile, and the second is glued to the wall with liquid nails.
• The side panels are installed in the same way.

Advice!
When installing panels from the outside, you can additionally insulate the slopes with mineral wool, laying it in the space between the wall and the slope.

It must be said that it costs more than drywall, however, when choosing, durability is a more important factor than low price and the need for periodic cosmetic repairs.

Rare types of materials for finishing slopes

Sometimes you can find slopes made of cellular plastic. However, this is not the best solution, since the material is fragile, and it also fades in the sun. And if the width of the slope is more than 25 mm, then it becomes necessary to join the two panels.

External slopes made of natural or artificial stone look very original and unusual. This design gives the whole house a special elegant look. However, it is very difficult to do stone finishing with your own hands, since the material is difficult to process.

In the photo - the outer slope

In addition, such a finish will cost much more than the above-described slope options. In addition, it is desirable that the stone be found in other elements of the facade, for example, on the corners of the building or the plinth. For this reason, stone cladding is more suitable for cottages and country houses.

If you finally decide to do the slopes yourself, then you should take into account some of the nuances that are listed below:

• In order for the slopes to turn out to be of high quality and durable, they must be insulated using the technology described above.
• If the slopes are made of plaster, then it is best to use paint as a finishing layer. This will make it easier to care for the finish, as well as make it more moisture resistant.
• Regardless of the type of finish, it is extremely important to maintain a developed angle, otherwise the light distribution in the room will be disturbed.
• Finishing the outer slopes of windows should hide the foam seam, for the reasons indicated above.

Here, perhaps, is all that is needed.

Output

Now, knowing the features of various types of finishes, making a choice will be much easier. Of course, the best option, based on performance, are plastic slopes.

However, not everyone likes their appearance, so other types of finishes should not be discarded. Additional information on this topic can be obtained from the video in this article.

Then you will certainly encounter the need to finish the surface around the perimeter of the opening. The raw strip will have a width ranging from 5 to 15 cm (depending on the design of the building). The strip is called a slope, it must be covered. But first you need to familiarize yourself with what is needed for this.

Why separate?

Finishing window slopes inside is the final stage after the installation of windows. This procedure is necessary, because otherwise the opening will look unaesthetic. Old slopes are destroyed after the dismantling of wooden frames, they must be closed, which is especially true for the seam. It is filled with mounting foam. This allows you to make the opening more protected from frost and get rid of problems with windows.

If the slopes are trimmed correctly, then they will not be afraid of temperature changes. Excess moisture will not appear on their surface, and the heat and sound insulation properties of the opening will increase. However, property owners quite often refuse to finish the slopes, postponing these works in a distant box. Many believe that if the window is foamed, then nothing will happen to it. However, the waiting period for repairs is delayed for a long time.

How to avoid mistakes

Experts say that this approach is not correct. The gaps between the double-glazed windows are sealed with mounting foam, which has soundproofing characteristics. The foam is exposed to the sun's rays, which can make it unusable. The foam increases in volume and begins to crush itself. Therefore, a gap appears between the foam layer and the frame after a while.

Why you need to hurry

In the open form, building foam does not perform waterproofing functions. It absorbs moisture, which destroys the material when the temperature drops. Foam, being open for a long time, loses its thermal insulation properties. It starts to break down by 50% when its humidity rises by only 5%.

Use of plaster and paint

Finishing window slopes inside can be done with plaster. It has a low cost. Before starting work, the cement-based composition must be diluted. The surface around the double-glazed window is cleaned, dust and bitumen stains are removed from it. Concrete sags in the corners must be cut down.

To improve the adhesion of masonry and plaster, it is necessary to embroider the seams by 10 mm. As soon as the surface is plastered, it is necessary to align the slope angles. You can start laying a new layer only after the previous ones have dried, for this reason this method can be called a long one. The plastering process can take up to 3 days. The layer turns out to be quite thick in some cases, this is caused by uneven walls.

When finishing window slopes inside with plaster, a small amount of the mixture must be applied to the groove. This fragment is left until dry. After the plaster is applied in a small amount and compared until the sinuses are filled. For one opening the applied layer should not exceed 7 mm in thickness. It should be leveled, directing movements from the bottom up.

To align the joining lines, it is necessary to use a trowel. When finishing, it is necessary to maintain an angle between the wall and the box. The angles must be the same. On the entire surface of the slope, before plastering, it is necessary to strengthen a wooden lath with a horizontal edge. It can be strengthened with nails, gypsum plaster is also acceptable.

Rails can be installed on the sides of the surface. The leveling of the mixture is carried out with a wooden stick, which has a rounded handle. One end of the tool must be installed on the box, while the other end on a wooden rail. You can start leveling the edge only after the mixture begins to set. After that, a covering layer is applied, which must be wiped. As soon as the plaster dries, the slats must be removed. The remaining sides are treated in the same way.

The covering layer should have a thickness of 22 mm along all slopes. When finishing window slopes inside is carried out with plaster, windows should not be opened. If the mixture gets into the fittings, it damages it, as a result, the window will not cope well with the tasks assigned to it. An even layer of plaster will allow the window to open and close normally during the entire operation.

Disadvantages of stucco finishing

Despite the fact that stucco finishing is quite cheap, some property owners refuse to use it, because this technique has some disadvantages. Among others, it can be distinguished that the mixture is not securely connected to the plastic frame, which leads to gaps between the slope and the surface of the frame.

Seasonal temperature fluctuations and insufficient elasticity of the mixture contribute to the formation of a crack on the surface. Among other things, plaster does not have special heat-insulating properties, which causes condensation and mold to form.

Drywall finishing

You can finish the window slopes inside with drywall. This method is traditional, it is preferred due to the moisture resistance of the material. This quality is especially important for windows, because condensation often forms on them. You can also take ordinary drywall, which is treated with a primer applied in several layers. To do this, use a moisture barrier. As for moisture-resistant GKL, it has high rigidity, increased thermal stability and excellent thermal insulation.

If you finish the window slopes inside with your own hands using drywall, then you will get many advantages over finishing with plastic. The advantages are the cheapness of materials and the possibility of repair. The damaged area can be covered with putty and repainted.

Drywall is also good because it is able to maintain optimal humidity in the room. It absorbs the excess, giving it back when the humidity level drops. But if it exceeds 75%, then the drywall may swell, losing its characteristics. When choosing it, you must be prepared for negative moments: the material has low strength, so the slope can be damaged by mechanical stress.

Work methodology

Finishing window slopes inside a wooden house can also be done using drywall. It is fixed on a metal or wooden crate. You can use mounting foam for this if the putty does not set well. Glue is an alternative solution. After installing the window, the excess foam is cut off, the old finish is removed. The surface should be treated with a primer. If there are cracks and potholes, they are leveled with plaster mortar.

In order to exclude the penetration of moisture into the drywall and prevent the occurrence of mold, it is necessary to impregnate the slope with a moisture-resistant compound. Drywall is cut. The sheet must be marked according to the parameters of the window opening. Use a special knife for cutting. The slope is assembled from the top panel. Glue is applied to the sheet in a single strip. Its width should be 2 cm. The panel is installed in the starting strip, while the second edge of the sheet is pressed against the wall. After that, you can proceed to the side panels, which are inserted into the grooves.

All joints are treated with a neutral sealant. When finishing window slopes with plasterboard inside the room, it is important to exclude premature wear of the corner. For this, paint corners made of aluminum or galvanized steel are used. In those places where the GKL enters the profile, a mesh tape should be glued so that cracks do not occur there. Then the surface is prepared for painting, for this, several layers of putty are applied, rubbing the surface well. Drywall can be painted with acrylic or oil paint.

Plastic slopes

The most versatile are plastic slopes. In their designs there is mineral wool, which gives the products hydro- and thermal insulation abilities. Plastic can last more than 20 years. It is rational to install it for the reason that the slopes can be made on the same day that the windows were installed. Work does not take much time.

Plastic openings have high moisture resistance, rigidity and strength. They do not fade, are easy to clean and do not fog up. The material corresponds to that of which the double-glazed window is made. Therefore, with temperature differences, the expansion occurs in the same way, and there is no excessive stress in the slopes. Additional painting work is excluded. The openings take on a finished look, so they blend perfectly with other structures in the room.

Sandwich panels

You can also finish the window slopes inside with sandwich panels. They are products made of two sheets of plastic, between which is located extruded or foamed polystyrene. The thickness of such panels can vary from 8 to 36 mm. When facing a window opening, it is better to use panels whose thickness is 1 cm.

The basis can be plastic or wooden openings, the width of which varies up to 150 cm. The advantages of the panels are that they do not need to be insulated, because the appropriate material is incorporated into the design. But such a finish also provides for some disadvantages, one of which is expressed in the fact that the panel can exfoliate under the influence of moisture.

Do-it-yourself finishing of window slopes inside with plastic provides for the installation of products the next day, so that the mounting foam dries well. For the best insulating performance, the slopes are installed at the same time as the window sills. Sandwich panels can be fixed using one of several methods, but the most common of them is the one described below.

When the window slopes are finished inside with plastic, the ends of the panels are fastened with dowels to the base, after the master they begin to install fasteners and decorative corners. Seams adjoining the panels to the window sill are treated with PVC-based glue. You can use a neutral sealant for this. If we compare it with silicone, then it does not have a sticky consistency, as a result, when contaminated, the seams do not turn yellow.

Using wall panels

When choosing materials for finishing window slopes inside, you should pay attention to wall panels, which are not so expensive compared to a sandwich counterpart. Panels are hollow products, inside which stiffeners are located across. The thickness is one centimeter, while the width can vary from 25.39 to 37.5 cm. As for the length, it is 2.7 or 3 m.

Finishing window slopes inside with plastic is carried out in cases where the depth of the plane does not exceed 25 cm. This is true for the reason that wider openings do not allow for the rigidity and strength of the coating to be achieved.