How to install a plastic window sill with your own hands. Installation of a plastic window sill: technology and necessary tools. Installing a window sill on a balcony

Almost any modern renovation involves replacing windows, and few developers would think of leaving the old, painted oil paint wooden or asbestos-cement window sill. Many people are familiar with the situation when the “window workers” finished their work and left, and the new window sill was left standing forlornly near the wall. What to do next? Looking for masters again?

Window sill is a must modern interior. At the same time, it performs not only a decorative function, not only serves as a stand for flowers and household appliances, but also actively participates in the air exchange processes occurring near the windows. Protection of the lower part of the window opening from possible condensation and mechanical damage, thermal insulation of one of the most problematic areas of external walls - this is the true, utilitarian purpose of a properly installed window sill.

How to choose a window sill

On this moment it is not difficult to buy a window sill made of durable, impact-resistant sun rays and temperature changes, dimensionally stable material. There are many options on the market, each of which has its own pros and cons. However, the main problems of choice come down more to implementation issues design solutions and the thickness of the wallet.

Due to the low cost, from 55 rubles per linear meter, and good technical characteristics, PVC window sills are most widely used. They have similar properties to plastic windows, as they are made from the same UV-resistant, moisture-proof materials. The multi-chamber structure with frequent bulkheads provides them with high compressive strength and excellent thermal insulation properties.

Light weight, ease of cutting and processing greatly facilitate the installation of plastic window sills. It is not a problem to choose a color finished product, including possible imitation of wood and marble. The color can be transmitted either “in bulk”, for example brown, or in the form of a film according to the RAL catalogue. Most often, such window sills are made to match the window profile. The front surface of the PVC window sill has a matte texture or has a varnish coating. It is easy to choose a plastic window sill that is suitable in size for almost any specific case. In large construction stores products are often available with a thickness of 18-22 mm and a width of 100 to 600 mm. The strips come in lengths of 4 or 6 meters, but, as a rule, you can order them to be cut on site, or buy a window sill of any length. The main disadvantages of plastic window sills can be considered poor resistance to local damage: scratches, chips, punctures. They are practically beyond restoration.

Window sills made of MDF and chipboard can be laminated upper layer, be covered with cork or wood veneer. At a low price, they perfectly imitate expensive materials, including a natural stone. Such products have good performance characteristics and thermal insulation properties. They are fairly easy to cut and install.

If the protective coating of MDF and chipboard window sills is not damaged, then they are not exposed to moisture, do not warp or swell. Laminated window sills are difficult to scratch. Their cost per linear meter can range from 150 to 1200 rubles for a width of 30 cm.

Window sills made of coniferous and hardwood are ideally suited to wooden windows, have a very beautiful texture, visible under transparent protective coating, but can also be painted in any color. They are also a good thermal insulator.

Depending on the properties of the wood used, they have a certain degree of high bending strength, resistance to scratches and dents, and they are also easy to repair. The thickness of wooden window sills is most often about 40 mm. Among the disadvantages, we can note the need to ensure their waterproofing, which completely depends on the condition and quality of the protective and decorative coating, which requires periodic updating. Prices for products made from oak, hornbeam, beech, cherry, and ash can hardly be called affordable. High quality window sill from solid pine it will cost at least 1000 rubles per linear meter, larch - 1800, beech - 3000, oak - 5000.

Window sills made of natural stone - marble, granite or onyx are perhaps the most expensive of all those on the market (from 3,000 rubles per linear meter), but their classic beauty, sophistication and prestige leaves no one indifferent. The assets of such products include expressive texture, the ability to choose color, size, shape, style of processing corners and edges. Stone window sills are not afraid of water and temperature changes, but to some extent they are susceptible to contamination due to porosity natural materials. Being quite fragile, natural stone products can be easily repaired. Their heavy weight, as well as difficulty in processing, make their installation somewhat difficult. Window sills made of natural stone do not have thermal insulation properties.

Models of window sills made of artificial stone have operational advantages - resistance to chemical pollution and relatively low thermal conductivity. Trouble (low price range) similar products) can cause scratches on the front surface and its fading. Of course, they are cheaper than analogues made from natural materials.

How to determine the required window sill dimensions

In order for a window sill to serve for a long time, be comfortable and functional, it must not only be installed correctly, but also its dimensions must be correctly calculated. In some cases, it makes sense to make a window sill in a factory according to exact dimensions. This problem is especially serious when working with stone, since it is quite difficult to process, and it will be very nice if you don’t need to adjust anything to the location. Window sills made of MDF and chipboard can be ordered with a fully processed edge, which also should not be cut, as it reliably protects the product from moisture.

The length of the finished product should be greater than the width of the window so that the window sill fits into the walls. Typically, 30 to 50 mm are allowed beyond the line of vertical slopes on each side. For example, if the window width is 1000 mm, then it would be logical to order the window sill 100 mm larger, 20 of which will be used for the light reversal of the slopes, 80 - for the side outlets (40 mm each). In the area of the balcony block, one side of the window sill crashes into the wall, and near the door it should hang slightly, about 10 mm, over the short vertical slope.

The width of the window sill is mainly determined by the depth of the window opening. As a rule, the overhang of the window sill is about 30-50 mm from the wall. This size is explained by the fact that a window sill that is too wide can impede the free circulation of warm air coming from the heating radiators, which can lead to the formation of condensation on the surface of the double-glazed windows and side slopes. With a large overhang, the bending strength of the structure is significantly reduced.

To correctly determine the desired width of the window sill, it is necessary to complete the basic finishing of the outer wall - plaster, drywall. It will be enough to have installed beacons or a metal frame. Measurements are taken with a tape measure from the window to a cord stretched in the plane of the wall or a rule installed across the opening.

Attention! It should be noted that the window sill, about 10 mm, fits under the frame, resting against the installation strip of the plastic window or a quarter of the wooden profile.

It can be especially difficult to measure window sills of non-standard shape, such as on rounded walls, bay windows, and kitchen window sills and countertops. Sometimes the window is unfolded in the opening, then if you want to have an equally protruding window sill cornice, its width will have to be made uneven. In all these cases, we recommend inviting specialists from the organization from which you will order them to make templates and patterns. The most accurate, flawless products are obtained from measurements made using geodetic equipment such as a tacheometer. A tape measure and a cardboard sheet do not always help.

The main principle is simple: “measure seven times, order once.”

When to install a window sill

If you decide to simply change the windows while maintaining all interior decoration premises, then there is nothing special to wait - you can start immediately after the polyurethane foam has dried.

But in the case of major repairs, the matter is a little more complicated. The reason for this is the vulnerability of the surfaces of an expensive product installed prematurely. During extensive renovation and construction work, when the site is a large number of workers, guests from contractors (air conditioners, installers security systems, installers stretch ceiling, furniture assemblers...), it is extremely difficult to keep the window sill intact. A flat horizontal surface, like a magnet, attracts you to place a tool on it, small and not so small, building material, put a cup of coffee on it, step on it with your foot to reach the high ceiling. As a result, the window sill was replaced and the slopes were redone due to “from nowhere” scratches, dents, chips, and persistent chemical stains.

Many practicing builders have come to the conclusion that the installation of a window sill must be done at the very last moment, immediately before finishing. Naturally, by this time the entire range of preparatory work must be completed, including the installation and even plastering of walls and slopes.

How to prepare a place for installing a window sill

Depending on the type of product, its material and thickness, as well as the chosen fastening method, we will prepare the base. The first step is to remove all loose, protruding elements of the wall on which the window sill will rest, these are loose bricks, crumbling plaster, installation wedges, fasteners, embedded parts. If during de installation work formed through holes outside or into enclosing structures, it is recommended to foam them.

You also need to prepare grooves in the wall for the entry of the window sill; here you cannot do without the use of a small grinder and a hammer drill. If the slopes are sheathed with plasterboard or plastered, then their plane must be interrupted no lower than the window profile in order to form a technological niche.

Next, you need to restore the masonry, and pour a flat area from a durable moisture-resistant mortar using the beacons to a given height. To install a window sill on polyurethane foam, it is advisable to have a gap of about 20 mm from the bottom of the product to the top of the installation area, this is so that the tube of the mounting gun can be inserted into the area of the window frame. For installing a heavy stone window sill on a layer of most special adhesives only 5 mm will be required, that is, from the bottom of the window the platform should be lowered by 35 mm, where 30 mm will be the thickness of the window sill.

If outer wall sheathed with plasterboard on a metal frame, the horizontal lintel running under the window should be placed at the correct height. A common mistake made by novice installers of drywall systems is installing it too high.

A very important point in the preparatory work is checking the evenness of the lower edge of the window block. Certain problems are caused by poorly manufactured or incorrectly manufactured installed windows from PVC. Very often, at the junction of the vertical and lower horizontal profiles there are burrs that make it impossible to press the window sill tightly to the window - they need to be cut off with a knife. Another common defect is the shape of the lower profile in the form of one or several arcs, curved upward with their middle. Its presence can be easily checked by stretching a thread along the lower edge of the window from corner to corner. If a thin plastic window sill can be quite easily pressed against the window with wedges or foam, then with rigid products made from other materials everything is much more complicated, they only emphasize all the unevenness. The result is very unsightly cracks that will have to be sealed with all kinds of sealants. The reality is that even in new buildings elite class it is necessary to repair the plastic ones installed by the builders window blocks- cut out the foam from under the window, remove wedges and fasteners, dismantle the double-glazed window and different ways align the PVC profile. Sometimes the matter ends with a complete reinstallation or replacement of defective windows.

How to install and secure a window sill

No matter how accurately we make preliminary measurements, before installation the window sill often has to be trimmed a little, especially in the places where it enters the walls. Wood and MDF, Chipboard is better Just cut with a jigsaw and a metal file, but a plastic or stone window sill with a grinder with a diamond blade.

To press the window sill tightly to the window, you need to use wooden or plastic wedges. They are prepared based on the thickness of the product and installed near the window lintel with an interval of 400-500 mm. Some craftsmen prefer to glue them to the base in advance so that they do not move during installation. The correct selection of wedges is checked by dry fitting the window sill - the product should fit tightly.

The installation profile (window plate) should be thoroughly coated with silicone to seal the junction; the protruding mass can be subsequently trimmed off. It is also recommended to cover the end parts of the window sill made of MDF or chipboard with a layer of sealant, especially if there is damage to the protective coating.

The window sill is installed in its place and centered relative to the axis of the window or the lines of the side slopes. Wedges are also installed under the front part, adjusting the window sill according to the level. In most cases, the window sill cornice is made below its base, pressed 2-3 mm against the window, so that moisture does not accumulate near the junction.

A window sill made of MDF, chipboard, wood, or plastic can be additionally fixed by screwing it with long self-tapping screws through the window installation profile; to do this, you need to remove the outer ebb.

To prevent the expanding foam from pushing the window sill up, it is necessary to install 2-3 spacers running from the product to the top of the slope. We recommend installing even wooden beams along the entire length of the window sill and on top to distribute the pressure from the spacers. They can be easily adjusted using wedges. Options for placing a load from scrap materials on the windowsill sometimes play a cruel joke on the craftsmen, and it all ends with re-installation.

Now you can foam the space under the window sill. The foam should be applied sparingly, but evenly, without gaps, not forgetting its ability to expand greatly. You need to carefully fill with foam where the side parts of the window sill enter the wall; keep in mind - this is an important element of thermal insulation.

It is not recommended to install stone window sills on foam, as there are known cases where, when it expanded, a marble product was broken along the veins. It is better to install them using special glue, for example, SM117, SM115 and the like. For window sills made of onyx and light marble, it is better to use white glue, which will not leave marks if it accidentally gets on the front surface.

Comb with tooth the right size, about 6-8 mm, the adhesive composition, preferably in one continuous movement, is evenly leveled over a pre-prepared base. The notched trowel should be held as vertically as possible - this is the only way the height of the ridges will be the same. Using an even spatula, the back side of the stone window sill is covered with a thin layer of glue and installed in the design position.

If the window sill has a large overhang, then special corner brackets are used to secure it. They are secured with one shoulder on load-bearing wall with an interval of up to 500 mm, but not less than three pieces per product. Often this part of the bracket is recessed into the cladding and sealed with mortars. The window sill from below is screwed to the consoles using short cylindrical screws.

Once the foam or glue has completely dried, it is usually ready the next day, you can remove the spacers, install the end caps and begin sealing the joints.

How to protect a window sill from damage

The first thing you need to pay attention to is the correct storage of window sills on site. It is better to store products made of wood, PVC, chipboard in pairs, with their front surfaces facing each other, between which soft pads should be inserted. Stone window sills are stored in a vertical position; they should stand edge-on on two blocks, leaning against the wall at a slight angle.

Before installing any window sill, it must be covered with sheet polyethylene using masking tape, or with a special film that does not leave adhesive marks. Remember that there is still a lot of painting and installation work ahead, and this is a danger of contamination and mechanical deformation.

Attention! The factory protective film must be removed before installing the window sill in order to be able to check the quality and integrity of the front covering.

Window sills made of natural stone are capable of absorbing various substances with the formation of stains that are difficult to remove, so after installation they are immediately treated with protective compounds that close the pores of the front surface.

After installation, strips of plasterboard, gypsum fiber board or other similar materials, precisely cut along the visible contour of the window sill, should be laid on top of the film.

It is recommended to preserve marble products with a protective wooden shield, paying special attention to the cornice of the product. The hanging end is the most vulnerable place; it is covered with a bar sewn to the front. The casing must be securely fastened in the opening and rest on the polished surface through soft pads.

You can't lose sight of there's another very important nuance, which directly affects the correct functioning and durability of the window sill - the distance between the bottom of the window sill and the heating radiator should not be less than 100 mm.

Turishchev Anton, rmnt.ru

The internal window sill is an integral part of any plastic window. This design is needed in a home for additional insulation the junction of the window frame and the wall, as well as to ensure that the window has a finished look. It has the following advantages over other materials:

wooden structures require constant maintenance and also become damaged quite quickly;
stone window sills are characterized by rather difficult installation, which is unrealistic;
plastic structures are reliable, durable, beautiful;
have a long service life;
are easy to install;
plastic sheet is moisture resistant;
the material has an affordable price;
plastic is resistant to chemicals;
the material is plastic and light in weight, it is easy to cut and install with your own hands;
the canvas has high thermal insulation;
For installation you do not need special devices; you can get by with improvised tools.

In this article we will talk about how to properly install a plastic window sill on a window, since such structures are Lately are especially popular.

Preparatory stage of work

Before proceeding directly to installation, you need to prepare workplace. For this you will need following material s and tools:

level;
jigsaw;
roulette;
hacksaw;
pencil;
polyurethane foam;
foam gun;
perforator;
drills for a hammer drill;
hammer;
chisel;
wooden blocks;
bit.

The window sill is installed so that it fits into the side wall, so you will need to cut connectors about two centimeters deep in the slopes.

To carry out this procedure, you need to attach the plastic window sill to the wall and make the appropriate marks on it with a marker, then carefully knock out the grooves. Such an operation requires maximum concentration and accuracy, otherwise it will take a long time to restore the slopes.

Important! To ensure minimal damage to the slopes, they should be handled very carefully during the entire installation process.

The slopes are made of gypsum plaster. In this case, the procedure can be carried out using a hammer or chisel.
Concrete slopes. Then make indentations for plastic window sill possible using a hammer drill.

After completing all of the above manipulations, you need to clean the stand profile and the lower part of the window from pieces of plaster and dust, since these materials are used to install the window sill. Then the cleaned surfaces are moistened; it is better to use a primer for these purposes, which strengthens the surface.

Note! In order to prevent drafts from appearing from the window, you need to thoroughly blow out all the cracks of the window frame with foam.

Fit to size

Installing a window sill with your own hands is not a complicated procedure that requires minimum costs funds and time. However, each window frame has its own characteristics: bulges, roughness, cracks. Therefore, before installation, if you have a ready-made canvas, you need to cut out a blank for the window sill from it. To do this, calculate the width and length of the future structure.

It should be understood that the length of the canvas should be slightly larger than the width of the window, and may extend beyond the boundaries of the slopes. Basically, this output value is five or six centimeters.

The width is calculated by the formula: the width of the protruding part of the window sill + the depth of recess of the canvas into the stand profile + the width of the surface under the window sill.

You also need to cut rectangles on the sides of the plastic blank, which allow it to easily enter the slope. Cutting plastic is quite easy. To do this, use a hacksaw, grinder or electric jigsaw. If nicks appear when cutting the material, then there is no need to worry, since all defects will be hidden by plastic overlays.

When the blank is made, it needs to be tried on. To do this, place the plastic blank on the surface of the window sill and place it behind the slopes and the support profile. At this stage, it is necessary to eliminate all inaccuracies in measurements, if any.

Installing a window sill horizontally

Before the final installation of the plastic window sill, the canvas must be leveled. To do this, pads are placed on the surface of the base. This operation is quite easy to perform yourself. For a regular window you will need two linings, and for a balcony - three.

The wedges must be placed strictly at the level of the window; this procedure makes it possible to properly level the window sill blank before installing it. Then you need to set the optimal angle of inclination. This manipulation is required to eliminate condensation naturally. To do this, the edge of the slab is lowered a few degrees, and the slope angle is measured with a building level. In order for the opening to be smooth, these parameters should be checked in the middle and along the edges.

You need to adjust the level using pads. For wedges, it is better to buy special plastic elements in advance, but you can also use wooden beams. The plastic window sill must be installed in such a way that between the canvas and window frame there were no cracks. For this purpose, pressure plates are used. Which are attached to the stand profile.

Installation (foaming) of the board

In order to properly secure the window sill yourself, you must perform the following steps:

Moisten the bottom of the opening and the slab again.
Clean the part of the canvas that will be installed under the slopes from the protective film.
Then, using mounting foam, blow out the gap between the profile and the lower edge of the opening.
Then apply a wide layer of foam to the entire surface of the base, especially carefully treating the far corners. At this stage, you need to take into account that the thickness of the foam should not exceed the thickness of the installed wedges, otherwise, when the material hardens, it can greatly lift the plastic window sill.
Next, to evenly distribute the load, you need to place a load on the plastic window sill. It is recommended to do this on inner edge boards.
The window sill is installed, now all that remains is to wait until the polyurethane foam dries.

Installing a window sill on a balcony

Nowadays, it has become popular to install not only windows from plastic, but also balcony structures. This material retains heat well in the apartment and saves usable space. However, you should understand that the installation procedure itself is quite expensive. Therefore, many residents multi-storey buildings carry out the procedure independently.

Before you start replacing the plastic window sill, you need to prepare metal brackets. They are necessary if it is not possible to place the canvas under the window frame. The brackets are fixed to the parapet using anchors, which increase the load on the PVC board and strengthen the entire structure.

The brackets are installed at a distance from each other that does not exceed one meter. After installing the panel, you need to check the angle of inclination with a building level. Before fixing the fabric holders, you need to tighten the thread well. This operation makes it possible to level the PVC board horizontally.

After the brackets are installed, we proceed to the installation of the window sill itself. It is fixed with self-tapping screws at the bottom of the structure. It is recommended to do this with a screwdriver.

After installing a plastic window sill on the balcony, the entire surface of the PVC board should be treated with a special sealant. This manipulation is necessary to eliminate gaps and other irregularities.

Note! Unlike installing a window sill in a house, there is no need to use polyurethane foam on the balcony, since all components of the structure are quickly and reliably attached.

Replacing window sill boards in a wooden house

Replacing a window sill board in a wooden house is almost the same as installing it in an apartment. First, the old canvas is removed, then preparatory work. To do this, the slopes on the sides are put in order; this measure allows the PVC board to securely take its place.

To avoid having to cut the plastic and ensure that the canvas is fixed freely, it is recommended to cut out the wooden sides yourself. For this procedure you will need a hammer and chisel. Thus, you will have grooves on which the fastening will be carried out.

After this, wedges are placed on the surface of the opening. Installation of the canvas is carried out exclusively on them. The position of the pads is adjusted and the position of the slab is checked with a building level. Then all the gaps are blown out polyurethane foam.

As you can see, installing a plastic window sill is not a labor-intensive procedure. In order to implement it yourself, you must follow the following recommendations:

Be sure to moisten the surface before using polyurethane foam, since the material polymerizes better in humid conditions;
you should not use too much foam, since the material, when hardened, increases significantly in size and can greatly lift the canvas upward;
if you do not have the opportunity to place the PVC board behind the slopes, then you should take all measurements very carefully so that the slab fits perfectly on the base;
All joints must be well treated with a sealant.

If you have certain knowledge, you don’t have to call specialists and do the work of installing a plastic window sill yourself.

Installing a plastic window sill with your own hands

Many people want to have modern metal furniture in their home. plastic windows, and many have already installed them a long time ago. But in addition to installing double-glazed windows, you need to take care of finishing the opening. It is decorated with wood, stone, or the concrete surface is simply plastered. The most correct option is to line the opening with plastic and install a PVC window sill. We will tell you what advantages finishing elements made of polyvinyl chloride have, consider methods for installing plastic window sills and give detailed instructions on installation.

Advantages and disadvantages of PVC window sills

PVC window sills are very popular due to their durability and moisture resistance

The popularity of plastic products is due to the fact that they have many advantages over finishing elements made from other materials. The advantages of plastic window sills include:

attractive appearance;
ease of cleaning from dust and dirt;
long service life;
high strength due to the presence of stiffeners;
harmless to health (PVC window sills are made from environmentally friendly and non-toxic materials);
high moisture resistance.

In addition, when fixing the product, polyurethane foam is used, which prevents the penetration of dampness into the room and, as a result, the appearance of mold in the house.

Plastic window sills also have disadvantages, but they are very few. Thus, PVC plates are susceptible to scratches in case of careless use. You should also not place hot objects on them - this can lead to deformation of the surface and loss of the beautiful appearance of the finishing element.

Installation methods

Installing a window sill using wooden pads requires a lot of time, but this method is the most reliable

There are several methods for installing PVC products. Let's look at each of them.

The first method, the oldest, involves fixing the element using a special composition. Nowadays, this method is used extremely rarely, as more convenient and reliable ones have appeared.
The fastest installation of a window sill is carried out using self-tapping screws. First in window frame Holes are drilled into which hardware is screwed. The connection point is treated with acrylic sealant, after which the edge of the window sill is placed under the glass unit and fixed with self-tapping screws. To give maximum rigidity to the slab, special pads are placed under it and the resulting space is filled with polyurethane foam.
The next method involves installing PVC window sills using spring brackets. These fasteners are screwed to the substitution profile of the product with self-tapping screws. After this, the plate is mounted in the groove formed between the window frame and the bracket, and the product is installed.
In the last installation option, no plastic window sills are used. fasteners(screws and staples). This is the most time-consuming method, but also the most reliable. Its meaning is that the wedges are driven under the slab until its edge is pressed against the frame as tightly as possible.

Each method has its pros and cons. For example, it is not advisable to install a window sill using self-tapping screws near the opening sash. The installation options for PVC window sills differ only in the method of fixing the product under the frame. The remaining stages of work here are absolutely identical.

What you need

Before proceeding with installation, you need to prepare materials and tools. As the first rule of professional builders says, the quality of work largely depends on the class of tools used. Yes, with good equipment and it’s easier to work with, and their service life is longer. Especially considering that tools will most likely be needed in the future, since window sills are often installed under each window of a house or apartment. So, for work you may need the following materials and tools:

PVC window sill;
electric jigsaw, grinder;
a container of polyurethane foam and a special gun;
building level, measuring tape, pencil;
screws or staples (depending on the chosen method of installing the window sill);
wooden wedges (thin boards and the like);
chisel and hammer;
stationery knife;
spatula and primer.

Preparatory work

Taking measurements

The product should protrude no more than 8 cm

To properly install any window sill, you must first take measurements. This point is extremely important, because both the appearance and the strength of the future structure depend on it. Here, in addition to the properties and characteristics of a polyvinyl chloride product, many additional parameters should also be taken into account. For example, there must be a certain distance between the battery and the window sill. Otherwise, air circulation will be disrupted, which will lead to a deterioration in the microclimate in the room.

When taking measurements, it is worth remembering that the length of the installed slab should be slightly greater than the distance between the side slopes. The fact is that the product is inserted into grooves made with a depth of 2–3 cm. As a rule, the window sill is mounted above the battery, so the size of the front protrusion of the plate should be no more than 8 cm. If this figure is greater, then the PVC plate will not allow hot air rises from the radiator to the window. And this will lead to the formation of moisture. As for the vertical distance between the battery and the window sill, it should be more than 10 cm.

Due to the fact that the product is installed directly under the window, modern models equipped with a special profile with the possibility of fastening the ebb.

Window sill trimming

In addition to a jigsaw, you can use a grinder or a special hacksaw to cut a plastic window sill

In accordance with the measurements, cut the window sill blank to the required width and length. It is advisable to cut polyvinyl chloride products with a grinder. Using this power tool will allow you to achieve perfectly straight edges. If there is no turbine, you can use a jigsaw. Less commonly, cutting a PVC window sill is done with a plastic hacksaw. But you need to cut it very carefully.

Do not press too hard on the saw, as this may cause chips and cracks in the product.

When working with plastic, you need to remember safety precautions. This is a fairly fragile material, so when it is intensively cut, small particles can fly out. Wear safety glasses and work gloves.

Preparing the window opening

To make grooves under the window sill, use a chisel and hammer

Immediately before installing the window sill, you need to prepare the place for its installation. At this stage, grooves are made in the side slopes using a chisel and hammer. After this, the installation site of the product is cleared of debris and primed. Next, special spacers or wedges are attached to the window frame. They can be fixed with gypsum mortar. Supports are used to install the stove at the correct level and with the required slope. Please note that the stove should be positioned at an angle of 1-2 degrees towards the room. This way, water from watering plants or condensation will drain and not collect under the stove. Then attach the window sill and check how tight and even it becomes. If necessary, trim the edges of the product.

Apply a layer of moisture-resistant primer to the window sill installation site

Important: If you find any cracks in the window opening, they must be filled with foam.

Installation instructions

Use a special gun to blow in polyurethane foam.

As noted earlier, fixing the product can be done in several ways. We will consider the latter - using wooden spacers and polyurethane foam, since it is the most reliable and very popular recently among people doing repairs with their own hands. The procedure is as follows:

We insert the window sill into the prepared place. In this case, we use a building level and wooden beacons, which we place in increments of no more than 80 cm.
At the front end we install wooden support blocks under the slab. The distance between them is no more than 50 cm. In this case, the load-bearing elements should not extend beyond the plane of the wall. The distance from the blocks to the side slopes is 10 cm.
We check the angle of the window sill again with a level. If it does not correspond to the previously specified value, then adjust the thickness of the pads.
We fill the hole between the slab and the concrete surface with foam. But not completely, but only to fix the product.
Place the weight evenly on the plate. This will prevent the foam from lifting the sill. Here it is important not to overload the structure, as its surface may become deformed. Often, 3-4 tanks of water with a volume of 5 liters are used as cargo.
We blow out all the free space under the window sill with foam. Use a special gun to prevent the sealant from splashing around and getting on your clothes.
After this, we leave the window sill alone for 2-3 days so that the foam completely hardens. We cut off the excess binder with a utility knife.
If you subsequently find cracks under the slab, treat them with acrylic sealant.
At the final stage, plugs are installed at the ends of the window sill. To do this, use glue for PVC products. In the end, all that remains is to remove the protective film from the product.

Place several bottles of water on the windowsill to prevent foam from lifting the slab

Important: The window sill must fit tightly with the window frame, and the gap between the slab and the walls should not exceed 4 mm. The “ears” of the product (the part protruding beyond internal slopes) should also be pressed tightly against the wall.

Video instructions for installing a PVC window sill

Installation of plastic window sills is not an easy job that requires appropriate knowledge and skills. When installing such products yourself, be careful and adhere to the above rules, because the price of a damaged PVC plate is much higher than the cost of its installation.

How to properly install a window sill on plastic windows

Greetings, friends!

Continuing the topic of installing plastic windows, I want to teach you -.

Why do I prefer plastic window sills?

This is because wooden ones, although they are environmentally friendly, are very picky in terms of care: you should be afraid of all sorts of detergents, require periodic painting, are afraid high humidity and fire, and their price is disproportionately higher.
Unlike wooden ones, PVC window sills have a number of advantages:

Thanks to its design of several air chambers, a plastic window sill is an excellent heat insulator
A PVC window sill does not require painting, it also does not rot, is not afraid of mold, etc.
Plastic itself is a very durable material.
It is not afraid of temperature changes, is resistant to sunlight, is not afraid of moisture and is easy to clean...
Very light but durable at the same time
Optimal price - quality

In order to correctly install the window sill on plastic windows You don't have to be a super master. The work is not very difficult and with a little manual effort you should succeed. Read the article carefully - in it I will try to cover all aspects as much as possible.

How to choose a plastic window sill

1. Window sill covered with PVC film

The cheapest option. It tolerates temperature changes very poorly and quickly loses its appearance, as it quickly absorbs dirt and dust. The only advantage is its low cost.

2. CPL coated laminate

Such window sills are obtained by pressing paper sheets impregnated with melamine resins. Very resistant to temperatures and chemical influences.

3. Plastic with EPL coating

Window sills with EPL coating are premium class. Magnificent specifications, special antistatic coating, a huge range of design solutions, etc. and so on.

Necessary tool

The window sill itself is the required width
Plastic plugs for it
Plastic wedges or bars, in the absence of such
Metal saw or jigsaw
Polyurethane foam
Building level
Roulette
Well, preferably a primer

Preparing for installation

We have decided which window sill to choose for plastic windows and we can proceed directly to preparation. If, after dismantling the old window sill, there are side grooves left, then this is good, but if there are none, then you will have to cut them out. We use a hammer drill or chisel for this. The depth of the groove should be about 6 cm on each side.

The next stage is garbage collection. Use a brush to clean as much as possible work surface.

Then we prime. Primer is necessary to increase the adhesion of the polyurethane foam, and we will also exclude fine dust from the work.

Friends, if you stain a window while priming, you should immediately remove the remaining primer, because traces may remain in the future.

The final stage of preparation is to control the gap between the window sill canvas and the base. The distance should not exceed 4 cm, as this optimal thickness for polymerization of polyurethane foam. Exceeding the permissible limits will lead to the appearance of “sinks” and voids in the frozen foam, which is not good: (If your distance is greater, then you need to build up the base using plaster or other methods - it all depends on the thickness:)

How to properly install a window sill on a plastic window

So, the preparatory work is completed and you can proceed directly to installation.

Installing a window sill on polyurethane foam

Proper measurement is very important - be it a window sill or a plastic window.

Do not forget about approaching the wall so that there are no gaps under future slopes.

After the window sill is cut to size, it is necessary to place several wooden blocks on the base perpendicular to the window (craftsmen usually use plastic slats). This creates stiffening ribs that take on the main load. The optimal distance between substrates is 40 cm, but may vary depending on individual characteristics.

The bars should be placed with a slight slope towards the room so that accumulating condensation does not cause mold to appear.

Distance between wooden slats foams.

Friends, to prevent the foam from “crushing” the window sill, I use foam with the lowest expansion coefficient. For example - Titan 65.

Then you need to immediately measure and put plastic side plugs on the window sill. They can be secured using construction adhesive.

We drive the structure, ready for installation, into the stand profile and install it on the load on the structure so that the mounting foam does not lift it up. You can use several 5 liter bottles with water.

Let the window sill stand for a day until the foam completely sets.

Then acrylic or silicone sealant seal the gaps.

Friends, I almost missed it important point. In order to create circular air circulation in the room, so that the windows have enough heat and ice does not form on them, it is necessary correctly install the plastic window sill above the battery. The inner part of which should not completely block the heating devices. The heated air should rise from the battery up the window unhindered. This creates circular air circulation in the room.

Installing a window sill on a cement-sand mortar

Friends, if the width of your future window sill exceeds 600 mm, then I do not advise you to mount it on foam, since under increased loads there is a high probability of deflection, which is not very pleasant - especially if the repairs have already been completed. In such cases, a cement-sand mixture prepared in a ratio of 1 to 3, where 1 is cement and 3 is sand, will help you. The mixture must be mixed immediately before installing the window sill.

Unlike polyurethane foam, the interaction between the solution and the plastic is not very good and slipping is possible. To avoid this there is one tricky trick - to inner side The window sill is screwed with self-tapping screws. It is advisable to make three rows with a distance of 1.5 cm. The head of the screws should stick out by 1 cm.

Apply the prepared solution to the base and install the prepared window sill into the supplied profile.

We achieve the desired level.

Remove the remaining mortar under the window sill with a spatula.

Let the window sill “rest” for two days and you can begin installing the slopes.

How to install a plastic window sill correctly - video

Well, that's basically it, my friends.

I believe that the question - how to properly install a window sill on plastic windows- I gave a complete answer.

How to install plastic window sills and slopes with your own hands

Modern construction trends involve the use of the most ergonomic materials. The requirements of the average buyer are as follows: the material must be light, durable and inexpensive. Previously, wood was used almost everywhere, but now it is considered a premium material. It was replaced by plastic - it is more durable, cheaper and has almost unlimited decorating properties.
Most often, plastic is used in metal-plastic windows, which are now installed almost everywhere. In addition to them, it is necessary to install a window sill and slopes. Each element performs important role in everyday life, and their selection and installation must be approached with particular care.

Installation technology

More often than not, it turns out that the main technical purpose of these products is completely forgotten. They are usually used as a flower stand; especially large and durable versions can be designed as a continuation and expansion of the workspace in the kitchen or office; you can even place a comfortable sofa there for reading books.

In addition to all this, the window sills with their protrusion delay the rising from the radiators warm air at a low level, which allows you to warm up the living space much better.

Immediately after installation metal-plastic window you need to let it sit for a couple of days, after which the installation of the window sill begins. You need to prepare the tools:

sharp construction knife; hacksaw for metal; sandpaper; hammer and chisel (if available, an impact drill or hammer drill); wooden or plastic pads for leveling the surface; building level.

old version

construction vacuum cleaner

wooden plates

After the correct level has been set, you need to press down the new surface with something heavy; bricks wrapped in rags are ideal. They will hold the window sill when the polyurethane foam swells. All empty space underneath is carefully and carefully filled with polyurethane foam. The structures are allowed to stand for at least a day. After the foam has dried, its remains are cut off with a knife - and the window sill is ready for use.

Slopes

Conclusion

Plastic windows are perfectly equipped with ergonomic window sills and slopes made of similar material. Their installation does not require the involvement of specialists; they will last for decades. Maintenance is very simple and immediately covers all installation costs.

Detailed video instructions can be viewed on the video.

A window sill is not only decorative element, on which you can place pots with plants, household items, but also a structural detail. Standard installation A window sill on plastic windows can prevent sudden movement of warm air from the radiator to the ceiling. In this way, heat exchange inside the room is regulated and the lower structures are heated. Let's look at how to install a window sill on a plastic window yourself.

Types of window sills

Window sill blocks must be made of wear-resistant, high-quality material. Currently on the construction market there is widest choice products for different tastes and budgets. The most popular designs for windows are made of stone, wood boards, and plastic.

PVC window sill board

Such window sills are distinguished by good performance parameters and reliability. They tolerate high humidity conditions and exposure to ultraviolet radiation very well, and are almost not deformed and do not become moldy.

Another advantage is their ease of installation. Installation work will not take much time. This window sill does not require any coating or painting. Such designs are inexpensive, which is why they are in demand.

PVC products are very durable due to special stiffening ribs. Their surface is laminated, for which films based on acrylic resin or melamine.

Composite systems

This type of structure is created from 2 parts - a board that lies in the base and in the top covering (can be made of laminate, special film or veneer).

These products include window sills made of WPC, MDF or chipboard. Often the basis of chipboard is sawdust from deciduous and softwood.

Now many apartment owners correctly believe that installing chipboard window sills on plastic windows will be practical and economical option. Over time, this raw material does not swell from moisture and is not damaged. MDF boards are made from fine chips, which are processed in a special way and combined into blocks. This material It is environmentally friendly - it is safe for human health.

A window sill made of fiberboards is quite durable. The owners will not have any trouble cleaning such products. For washing, it is better not to use powders that scratch the surface. During installation work, it is recommended to lay thermal insulation at the ends.

Window sills made of WPC (wood-polymer composite) consist of polymers and special fillers from natural material. Plastic windows with these window sills have all the advantages wooden structures, are not susceptible to the appearance of mold. The surface of this product is more durable, and their difference from wooden structures is their resistance to fire.

This profile may be similar to plastic or MDF, depending on the amount of wood component used. WPC window sills can be coated with varnish or enamel paint, and finishing can be done using different types films consisting of synthetic materials.

Wooden window sill

For facing space in window opening Wood has been used for a long time. The highest quality products are made from ash, beech, cherry, and oak. To create window sills, materials from other valuable species are used, for example, maple, mahogany. More economical ones include structures made of larch or pine.

Processing of raw materials is carried out in a large number of stages. It is dried, then sanded, covered with wax mastic and natural oils. The structure is treated with a special waterproofing impregnation and a layer of varnish. This ensures quality and ease of use of the finished product.
The cost of a slab from natural wood quite high. Window sill boards made from ash are 30% more expensive than oak boards, due to the fact that ash perfectly retains its shape. On window sills made of soft coniferous trees Over time, damage and pitting may appear. These window sills are cheaper.

For plastic windows, wooden window sills have many advantages. They have good thermal insulation properties. This choice will be the best for owners if they want to use a similar window sill on a loggia or kitchen. Often, a window sill block is used as an additional working surface. Hot objects are placed on it, and moisture also gets onto the windowsill. In order for a product to withstand such a load, it must be durable and of good quality.

Installation of PVC window sill

Installing a window sill to a plastic window requires certain skills from workers. Incorrect installation of the window sill can lead to poor thermal insulation of the entire window design. The installation of this product is often carried out simultaneously with the replacement of the window frame. In terms of the consumption of monetary resources and materials, it is more economical, faster and more convenient. Let's study detailed instructions on how to install a plastic window sill.

Determining the size of the window sill

Window sills that are made of PVC are best suited to plastic windows. The work must begin by calculating the size of the window sill for the desired plastic window. To determine how long the window sill should be, you need to measure the width of the opening with a tape measure. Add 60 mm to the resulting value. On each side, the window sill should protrude beyond the slopes by at least 30 mm. Otherwise plastic corner with the F profile, which is used when installing slopes, will significantly protrude beyond the window sill, which is considered unacceptable.

The width of a plastic profile is determined quite simply.

It should be remembered that the permissible protrusion of the window sill from the opening is from 50 to 70 mm. Otherwise, it will block the battery, which will prevent the passage of heat.

This can cause not only fogging, but also the formation of ice on the windows. The window sill should be inserted approximately 20 mm under the window structure itself. Accordingly, these figures must be added to the depth of the window opening, which is measured from the profile to the wall.

Making a window sill blank

When installing a window sill with your own hands, you need to apply the obtained indicators. Then the window sill blank is cut out to the appropriate width and length. The cutting process is carried out with a grinder, as with its help you can get perfectly smooth edges. If this tool is not at hand, then a jigsaw will do the job, you just have to cut it carefully. If you don’t have a jigsaw, you can saw off the workpiece using a regular saw.

How to fasten if the workpiece does not fit into the opening? It is necessary to cut out those parts that interfere with it. You can make the protruding parts of the window sill on the right and left recess into the wall. After the installation process on a plastic window sill, the recesses are filled with putty using this method.

The effect of solidity of the window sill and wall should be ensured. To do this, small recesses are made in the wall using a hammer drill. Then you need to attach a window sill to the opening and make marks for the cuts. Rectangles that interfere with installation are cut off on the right and left. Now the plastic window sill blank is completely ready for installation in place.

Surface preparation

Before installing a plastic window sill, it is necessary to clean the horizontal surface from construction debris and dust. The question arises, how to install the product correctly?

It should be taken into account that, regardless of the material used to make the window sill, it must always be installed at a slight inclination towards the room.

This is necessary so that water from glass condensation or watering plants does not collect under the frame. A tilt of a few millimeters will be sufficient.

Before attaching the window sill to a plastic window, you need to install special wedges or spacers, which should be fixed using gypsum mortar. They are needed to install the window sill to the required level. Then linings are prepared under the window sill. The linings should not protrude so that they do not have to be cut off in the future. Now a check is made to see how level the window sill can be installed.

Fastening a plastic window sill

Several methods are used to attach a plastic window sill:

Using two-component polyurethane foam (the most common method).
On glue using spacers. They act like a press.
For a special type of brackets. This also includes situations where the width of the window sill significantly exceeds the size of the window opening.
Using special holding brackets.

Polyurethane foam is applied along the frame, a plastic window sill is installed and fixed. All remaining voids are filled with polyurethane foam. It should be remembered that the foam can expand greatly in volume, so you need to be careful and careful. When the polyurethane foam has completely hardened, you need to remove the spacers and check the quality of installation of the plastic window sill using a level. The places where the plastic window sill touches the frame and slopes are sealed with acrylic.

Caring for the window sill

Their polyvinyl chloride boards must be cleaned with water and detergents. For wooden parts It is better to use a well-wrung out cloth without abrasive materials. It is not advisable to clean wood with abrasives or wet it with water. The surface of the window sill must be protected from freezing. Dust is removed with a dry cloth, and every 3 to 4 years it is necessary to cover the product with a new layer of varnish, wax or paint.

A new window sill will last you longer if the following conditions are met:

Accuracy when carrying out work.
Using quality building materials and raw materials.
The correct choice of material from which the window sill is made.
Installation taking into account all instructions and requirements.
Careful handling and regular care behind the surface.

It follows that the installation of window sills for plastic windows, as well as replacing the window sill with a new one, can be done independently. You only need to follow all the steps in the workflow.

One of the important elements of a window opening, which improves its appearance by covering the installation joints, is the window sill. It can be made from different materials. However, the most popular is plastic, which is due to the widespread use of metal-plastic windows. Installation of a plastic window sill consists of several successive steps, the implementation of which will ensure the achievement of optimal performance.

Metal-plastic windows have long gained credibility. They are very popular among consumers due to the fact that they are characterized by high performance characteristics, are easy to install and have a long service life. After replacing the window, the slopes and window sill are immediately installed.

A metal-plastic window is a universal product that can be used different variants window sill, which is selected in accordance with the stylistic task. The most common option is plastic products. This design is best combined with the material modern window, creating a single composition with it.

The plastic window sill is characterized by distinctive advantages. The product is resistant to moisture, sunlight and temperature changes, and is not prone to rot, mold or corrosion. The surface does not deform and does not change its original shape and appearance. The material is completely safe for human health, is durable (due to the presence of stiffeners), reliable, and resistant to chemical influences. It has high thermal insulation properties, which is due to the presence of air chambers in the window sill structure.

The product is lightweight, which ensures easy installation of the PVC window sill, while it does not shrink during further use. The surface does not require painting or other treatment options to prevent possible rotting or corrosion. She is easy to care for. Plastic window sills are characterized by their low cost compared to other materials.

Despite its advantages, plastic window sills have their drawbacks. If used carelessly, dents or holes may appear on the surface of the product, which is a consequence of the fragility of the product. If there is a glossy coating, scratches may form on it, which will cause an unsightly appearance.

Important! A plastic window sill can become deformed when exposed to high temperatures, so you should not place a hot kettle or pan on the surface.

Which plastic window sill to choose: product types

Before installing a window sill on a plastic window, you must select the type and size of the product. The most budget option is a surface covered with PVC film. However, such a window sill does not tolerate temperature changes and quickly absorbs dust and dirt, which leads to the loss of its original attractive appearance.

The CPL coated laminate product is manufactured by pressing paper sheets impregnated with melamine resins. This window sill with a multi-layer base is characterized by resistance to temperature changes and chemical influences.

Most often, do-it-yourself installation of a PVC window sill with EPL coating, which has high strength and performance characteristics, is carried out. Products are produced by extruding plastic material through extrusion holes to obtain the required shape.

The internal space is divided into several chambers with vertical and diagonal stiffening ribs, which ensures strength, rigidity and reliability of the structure, which does not bend or break. At the same time, the thermal conductivity of the product also increases.

The surface, thanks to the presence of an antistatic coating, does not absorb dust and dirt. This window sill is available in a wide range of colors, which allows you to choose a product that matches the specific interior of the room.

Texture, color and design of a plastic window sill

Depending on the type of coating, a plastic window sill can be matte, glossy or laminated. The first type of product can fit into any interior. The surface can be painted in a variety of colors. A matte window sill brings a feeling of coziness and warmth to the environment, but such a surface is prone to absorbing dust and dirt.

Important! If the matte surface is accidentally damaged, it can be restored using a special product.

A glossy product has a more attractive appearance. The surface has antistatic properties, so dirt and dust do not accumulate on it. The product is easier to care for. However, the surface is susceptible to mechanical stress; small visible scratches quickly form on it, which worsen its appearance. In addition, the glossy window sill cannot be restored.

Laminated window sills are covered with a special film, which gives the products texture, increased strength and durability. To receive the product white one layer of film is applied. The colored window sill has a two-layer coating that contains dye. The price for installing a plastic window sill of this type is the highest and starts from 1100 rubles. per linear m.

There is a separate type of product in the form of a wenge window sill, made from a mixture of PVC and wood flour. The unique production technology allows us to obtain a durable, scratch- and UV-resistant product. The price for installing a window sill of this type starts from 1,300 rubles. per linear m.

The plastic window sill can be made in white, colored or wood-look. The latter option finds its application in wooden houses. It can also be used in tandem with wooden windows. However, this design, unlike wooden window sill, characterized by resistance to moisture, no processing for further use, and a long service life. The “wood” imitation is achieved by using the appropriate laminated film.

Important! The use of such a coating in window sill manufacturing technology makes it possible to obtain a product that imitates natural stone in the form of marble or granite.

Plastic window sills are produced in lengths up to 6000 mm, widths of 100-600 mm in increments of 50 mm, and 600-1000 mm in increments of 100 mm, which directly affects the price of installing a window sill on a plastic window. The height of the product reaches 18-22 mm.

Components needed when installing window sills and slopes with your own hands

To install a window sill and slopes on a plastic window, it is not necessary to have certain skills and abilities. Even a novice master can handle this. For achievement good result important stage is the selection of the necessary components.

When installing a PVC window sill, you will need to purchase not only the slab of a certain type, but also connecting elements, as well as a double-sided end cap. The last element is represented by a strip with two spouts, used for decorative framing of the end sides of the window sill. The plug is divided in the middle, fixing one part to the right and the other to the left of the slab. To join the window sill at an angle and connect it along its entire length into one solid structure, connectors are used.

Slopes are used to frame the side elements of the window opening. They cover the mounting seams of the frame with the opening and give the window a complete, aesthetic appearance. The most common option is plastic slopes, which are characterized by strength, reliability, good thermal insulation properties, low maintenance and quick installation. The video “Installing slopes and window sills” will allow you to familiarize yourself in detail with the selection of elements and installation conditions.

To protect the window frame from negative influences environment It is necessary to install a low tide on its outside. The structure can be made of aluminum, plastic or metal. The second option is the most widespread. Metal castings are the most inexpensive and short-lived, since they have low level resistance to the negative influence of atmospheric conditions.

Aluminum castings are more durable and have reliable protection from mechanical damage, thanks to a special coating on the surface, they absorb the noise of raindrops.

Methods for installing a window sill on plastic windows

Before installing a plastic window sill, you should study possible methods of installing the product.

The oldest option for installing a window sill on a plastic window is to fix the product using a special compound. Today, this method is used extremely rarely due to the emergence of more convenient and reliable methods.

The easiest way to install a PVC window sill with your own hands is to use self-tapping screws. First, holes are made in the window frame into which hardware must be screwed. For greater tightness, the joints should be treated with an acrylic-based compound. To achieve maximum rigidity and reliability of the structure during installation, special gaskets are placed under it, and the resulting gaps are filled with polyurethane foam.

The window sill can be installed using spring metal brackets. These fasteners are fixed to the stand profile using self-tapping screws. Then the PVC plate is installed in the groove that was formed between the bracket and the window frame.

There is an option for installing a plastic window sill yourself, which does not involve the use of fasteners in the form of brackets and screws. The plate is installed on seat. Wooden wedges are driven under it until its surface is pressed as tightly as possible against the window frame. In this case, it is necessary to constantly check the level of the structure. The window sill should have a slight slope towards the room to prevent condensation from getting onto the frame.

All free space that has formed is filled with polyurethane foam. This type of installation is the longest, but it can be considered the most reliable.

Important! After filling the space under the window sill with polyurethane foam, it is necessary to install weighting on the slab in order to create the necessary resistance when the material hardens.

All window sill installation options have their pros and cons. They differ only in the way they fix the product under the window frame, and all other stages are identical.

How to install a window sill: preparatory stage

How to install a window sill correctly? First of all, you need to prepare the tools necessary to ensure maximum efficiency of work, and components that will make the installation process simple and convenient.

To install the window sill you will need the PVC product itself, a corner, a building level, a marker with a tape measure, sealant for joints and seams, foam for filling the gaps between the slab and the wall, a jigsaw, a hammer drill, a screwdriver, screws, and self-tapping screws.

Many people are interested in the question of how to install a window sill if the window is already standing. First of all, the necessary measurements are taken. Carrying out this stage is extremely important, since the strength and appearance of the future structure will depend on the correctness of its implementation.

The length of the window sill should be several centimeters greater than the distance between the side slopes. This is explained by the fact that the product is inserted 2-3 cm into the grooves made in the wall. The width of the product is selected taking into account its protrusion above the radiator, which is installed below. This value should not exceed 8 cm. Otherwise, hot air will not rise to the window from the radiator, which will cause condensation.

The distance between the window sill and the stove should also not be less than 10 cm. Otherwise, a closer location will cause air circulation problems, which will worsen the microclimate in the room.

How to install a plastic window sill: taking measurements and preparing the window opening

Before installing a plastic window sill, the product is prepared according to the measurements taken. The required length and width are marked on the plate using a marker. Then, using a jigsaw, the PVC structure is cut. Work must be carried out in safety glasses and work gloves, since plastic is a very fragile material, so small particles can fly out when cutting it intensively.

The cutting process can also be carried out using a special hacksaw or grinder. In the first case, the process will be lengthy. Using a grinder, you can achieve perfectly smooth edges of the product.

Important! When making cuts, do not put excessive pressure on the slab, as this can lead to cracks and chips in the product.

Before you properly install a plastic window sill, you need to prepare a seat for it. Since the structure is mounted with some penetration into the side niches of the opening, it is necessary to make appropriate grooves for it on both sides in the wall. The process is performed using a chisel and hammer. The resulting openings are thoroughly cleaned of debris and primed.

After this, you need to attach special spacers or wedges to the window frame, which are fixed for reliability using gypsum mortar. The installation elements must be positioned in such a way that the required inclination is ensured. Then you install the window sill on the seat with your own hands and check how smooth and tight it becomes. If necessary, the edges of the structure are trimmed.

Important! The window sill should have a slope towards the room of 1-2°.

The process of installing a window sill on a plastic window with your own hands

As mentioned earlier, there are several ways to fix the product when installing a plastic window sill. On at this stage The most popular and reliable option is being considered, which involves the use of wooden spacers and polyurethane foam.

How to install a window sill without a support profile? The product is mounted on a prepared seat. Wooden beacons are installed under the structure at intervals of 80 cm. They ensure the horizontality of the structure, which is controlled by the building level.

Under the slab at the front end there are wooden blocks, the distance between which should be about 50 cm. It is necessary to ensure that the load-bearing elements do not extend beyond the plane of the wall. The distance between the wooden blocks and the side walls should not exceed 10 cm. Before installing the window sill, recheck horizontal position of the window sill. If the value does not correspond to the previously obtained result, the pads are adjusted in thickness.

To pre-fix the window sill, the cavity between the slab and the concrete surface must be filled with polyurethane foam, a can of which is placed in warm water a few minutes before work starts. To prevent the binder from lifting the window sill during expansion, a weight is placed on the slab. Next, all free space is thoroughly filled with foam.

Important! Do not overload the structure to avoid deformation of the window sill.

In this position, the window sill must be left alone for 2-3 days. Excess foam should be removed with a utility knife. If possible cracks are found, they are filled with acrylic sealant. At the end of the installation process, to give the structure a complete look, special plugs are mounted on its ends with glue. After installing the window sill, you can begin installing the slopes.

Installing a plastic window sill on the balcony

Modern balconies and loggias are actively glazed through the use of metal-plastic double-glazed windows. This process is accompanied by the installation of a PVC window sill. The installation of a window sill on a balcony is mainly carried out at the time of glazing. However, this can be done later with your own hands. How to install a plastic window sill with your own hands so as not to regret the work done?

How to install a window sill on a balcony if the window is already there? To do this, you need to prepare metal brackets. They are needed if it is not possible to install the structure under an existing window. Metal brackets should be secured to the parapet using anchors. These elements will help strengthen the window sill, which will lead to an increase in payloads.

The distance between metal brackets should be no more than 1 m. Using building level You should check the horizontality of the fasteners. Before fixing the holders, to simplify the installation process, the thread is tensioned strictly horizontally.

After the brackets are completely fixed, the window sill is installed on the loggia or balcony. It is fixed at the bottom of the slab using self-tapping screws. After completing the installation process, the structure is treated with sealant. The procedure is performed to get rid of cracks that are formed as a result of uneven edges. You can learn more about the installation process by watching the video “Installing a plastic window sill.”

Important! When installing a window sill on a balcony, unlike installing it in a window opening, polyurethane foam is not used to fill the voids.

Procedure for replacing a plastic window sill

Over time, a PVC window sill may become damaged or lose its original appearance as a result of abrasions and ingrained dirt. In this case, it is important to know how to change the window sill.

Before removing the plastic window sill, preparatory measures are carried out, which are determined by the type of slopes. They can be monolithic, that is, installed using plaster, or panel-based (made of PVC plates or sandwich panels). The window sill is mounted under the slopes, so before it is removed, they must be partially or completely dismantled.

Using plastic slopes The profile used to frame the corner is removed. Then the finishing panel is carefully opened, for which the sealant seam is first opened. Next, the mounting foam is removed from the plane of the support rails, and the junction of the edge of the structure is cleaned. This is necessary for easy removal of the window sill.

If the slopes are finished with plaster, to replace the window sill of a plastic window, two horizontal lines should be drawn along the edges of the opening with a distance of 25 mm from the top of the window sill. According to this marking, trimming is carried out using an angle grinder with a diamond wheel. The process is carried out with extreme care to eliminate the possibility of damage to the frame. Using an angle grinder, an undercut is made along the plane of the wall, the depth of which is equal to the width of the protrusion of the structure beyond the slope.

Helpful advice! The installation depth of the window sill usually reaches 30-40 mm, so to dismantle the slopes you will need a circle of 180 mm.

Since the plate is modern way installation is not attached to the window frame or stand profile, but is fixed using polyurethane foam; simply tearing off the product will be quite problematic. Before removing the window sill, the structure must be cut into fragments using a jigsaw. If the slab is seated on cement mortar, to separate the structure you should use an angle grinder. Next, each element is removed from the seat.

If the window sill was fixed to the delivery profile, then the ebb from the outside of the window is removed. It is necessary to unscrew several screws from the profile.

Methods for restoration and repair of plastic window sills

With prolonged use, the slab loses its original appearance. The surface becomes very dirty, scratches and cracks may form on it, marks from hot objects, flower pots, stains from exposure chemicals and sun rays.

First of all, the question arises of how to clean stains from a plastic window sill. To do this, you can use conventional detergents and cleaning products, but they do not always bring the desired result. In this case, it is not necessary to change the design to a new product. You can explore several ways to update a plastic window sill.

PVC coated product protective film, which turns yellow or peels off over time. To eliminate such a defect, you can use a special wax for laminate flooring or a solvent-based cleaner for plastic. The surface is coated with the selected composition and then wiped with a dry soft cloth.

To restore a window sill that has small cracks and scratches, you can use specialized mixtures with a plastic effect. They are sold in powder form. After drying, the material acquires the same properties as plastic. A thick putty mixture is prepared from powder and water, which is used to seal all visible defects.

Helpful advice! For achievement maximum effect To prepare the finished composition, it is recommended to use a primer instead of water.

The prepared solution is applied to visible damage. After this, you should wait 10-15 minutes and sand the sealed areas with sandpaper, and the surface can also be polished special means for plastic.

For sealing deep scratches it's better to take advantage liquid plastic, which penetrates the pores of the material and sets quickly. To ensure that the restored surface has a uniform texture, it can be additionally covered with self-adhesive decorative film.

How to make a window sill from an old slab and give it an aesthetic appearance

Simple and in an accessible way restoration of a plastic window sill involves covering the surface with a laminated film. The material is presented in a wide range color scheme, in a single color, and it can also imitate a variety of textures.

The surface is pre-leveled using a putty mixture. The film of the required size is cut out with a margin of 3 cm at the edges. After removing the inner layer, the self-adhesive product is evenly distributed over the entire surface, eliminating the formation of blisters or waves.

Another option for solving the question of how to update a plastic window sill is to restore it using a PVC overlay, which can be used for slabs no more than 6 cm thick. This is simple and economical way, allowing you to quickly solve the problem of a swollen or cracked window sill. The lining is made of pure polyvinyl chloride, which is characterized by strength, moisture resistance, and resistance to ultraviolet rays.

Restoration begins with filling large cracks with glue, after which it is necessary to degrease the surface and spread it with an adhesive composition. An overlay of the required size is applied to the window sill and pressed with a weight. The surface must dry for 6 hours. The end edge is heated with a hair dryer and bent to the shape of the window sill.

Important! When using a glossy or laminated overlay, heat treatment is not used, as the product will lose its attractive appearance.

Installing a window sill under a plastic window is a simple task. However, to achieve a good result, it is important not only to choose the right product, but also to follow a certain algorithm for carrying out installation work, which will be the key to high-quality, durable and aesthetic window design.

Installing a plastic window sill with your own hands: video instructions

Modern construction trends involve the use of the most ergonomic materials. The requirements of the average buyer are as follows: the material must be light, durable and inexpensive. Previously, wood was used almost everywhere, but now it is considered a premium material. It was replaced by plastic - it is more durable, cheaper and has almost unlimited decorating properties.
Most often, plastic is used in metal-plastic windows, which are now installed almost everywhere. In addition to them, it is necessary to install a window sill and slopes. Each element plays an important role in everyday life, and their selection and installation must be approached with particular care.

Installation technology

More often than not, it turns out that the main technical purpose of these products is completely forgotten. They are usually used as a flower stand; especially large and durable versions can be designed as a continuation and extension of the workspace or in the office, you can even place a comfortable sofa there for reading books.

In addition to all this, the window sills, with their protrusion, trap the warm air rising from the radiators at a low level, which allows you to warm up the living space much better.

Immediately after installation, you need to let it sit for a couple of days, after which the installation of the window sill begins. You need to prepare the tools:

sharp construction knife;
hacksaw for metal;
sandpaper;
hammer and chisel (if available, an impact drill or hammer drill);
wooden or plastic pads for leveling the surface;
building level.

According to the established rule, the window sill must extend into the side walls by at least 3 cm. Using a tool, it is necessary to make special recesses at the level where the surface will be located.
If a new one is being installed, the window sill can be ordered from the same manufacturer. If they are installed separately after a long period of time, or it was decided to replace the old version with a new one, then it will have to be found in specialized stores or made to order. To measure the product, it is best to invite a specialist - he will accurately set the parameters of the product and will be responsible for this.

It is important to make sure that after installing the metal-plastic window, the putty, mounting solution and foam are completely dry. After this, you can begin preparing the working surface - it should be clean, free of foreign protrusions, dust and construction debris, and as smooth as possible. All hard protrusions are carefully knocked down with a chisel or drill, dust is removed with a broom or construction vacuum cleaner, and polyurethane foam is removed with a sharp knife.
Even if the finished window sill was made exactly according to the specified parameters, situations may arise when in some place it does not fit as it should. To solve this problem, sandpaper and a hacksaw are useful - in the right places, the finished blade is adjusted to the position being installed. If it is possible to start fitting the window sill from the side of the wall, it is better to start there, using a hammer and chisel or a strong screwdriver. As a result, the window sill should confidently fit into its intended place, not hang out in the grooves of the side walls, but also not rub in too much.

You need to spray the prepared work surface with plain water using a broom or mechanical sprayer - the foam will stick much easier to the moisture, which will make working with it much easier. This stage is very important, because It is the polyurethane foam that is the main fixing material.
There are three holes for installation in place - two side grooves and a recess in the window itself. The last hole should accept the window sill as clearly as possible - the unsuccessful gap will be visible during the operation of the living space.
The most important part of installation is setting the surface according to the level. To measure indicators, a mounting level is used. To adjust the angles of inclination, plastic or wooden plates are placed under it. The slope should be set slightly towards the room so that moisture does not linger in the groove between the horizontal surface and the window and mold and dampness do not grow there.

After the correct level has been set, you need to press down the new surface with something heavy; bricks wrapped in rags are ideal. They will hold the window sill when the polyurethane foam swells.
All empty space underneath is carefully and carefully filled with polyurethane foam. The structures are allowed to stand for at least a day.
After the foam has dried, its remains are cut off with a knife - and the window sill is ready for use.

Slopes

An ideal complement to the window sill would be slopes made of a similar material.
This option has a number of undeniable advantages:

relatively cheap materials;
easy installation, which does not require the help of specialists;
reliability and wear resistance;
ease of care.

The procedure for installing slopes

The slopes consist of the following elements - sandwich panel, F-profile, wooden planks and self-tapping screws. All the irregularities of the unprepared wall are hidden under the panel.
Wooden strips are placed on the edges of the slopes to cover the entire height and width of the window opening. An F-profile is screwed on top of them with self-tapping screws, which has special grooves for installation plastic panel.
The profile and plastic panel are refined using metal scissors. The main task is to prevent unsightly gaps.
Directly under the panel on the wall you can put mineral wool or fill the space with foam plastic - this will eliminate drafts and significantly insulate the walls.

Conclusion

Detailed video instructions can be viewed on the video.

How to install a plastic window sill with your own hands. Installation of a plastic window sill: technology and necessary tools. Installing a window sill on a balcony

How to choose a window sill

How to determine the required window sill dimensions

When to install a window sill

How to prepare a place for installing a window sill

How to install and secure a window sill

How to protect a window sill from damage

Preparatory stage of work

Fit to size

Installing a window sill horizontally

Installation (foaming) of the board

Installing a window sill on a balcony

Replacing window sill boards in a wooden house

Installing a plastic window sill with your own hands

Advantages and disadvantages of PVC window sills

Installation methods

What you need

Preparatory work

Taking measurements

Window sill trimming

Preparing the window opening

Installation instructions

Video instructions for installing a PVC window sill

How to properly install a window sill on plastic windows

How to choose a plastic window sill

How to properly install a window sill on a plastic window

How to install a plastic window sill correctly - video

How to install plastic window sills and slopes with your own hands

Installation technology

Slopes

Conclusion

Types of window sills

PVC window sill board

Composite systems

Wooden window sill

Installation of PVC window sill

Determining the size of the window sill

Making a window sill blank

Surface preparation

Fastening a plastic window sill

Caring for the window sill

Which plastic window sill to choose: product types

Texture, color and design of a plastic window sill

Components needed when installing window sills and slopes with your own hands

Methods for installing a window sill on plastic windows

How to install a window sill: preparatory stage

How to install a plastic window sill: taking measurements and preparing the window opening

The process of installing a window sill on a plastic window with your own hands

Installing a plastic window sill on the balcony

Procedure for replacing a plastic window sill

Methods for restoration and repair of plastic window sills

How to make a window sill from an old slab and give it an aesthetic appearance

Installing a plastic window sill with your own hands: video instructions

Installation technology

Slopes

The procedure for installing slopes

Conclusion

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