If the house has windows, then there must be window sills. A well-installed window sill performs not only a decorative function - it serves as protection for the room from the penetration of cold.

Structures can be wooden, granite or PVC. Installing a PVC window sill with your own hands can only be done after studying the technology for installing PVC products.

1. Why PVC window sills
2. Preparing the installation site
3. General recommendations

Why PVC window sills

1. Unlike wooden window sills, PVC products perfectly withstand sudden temperature changes.
2. High resistance to impacts and scratches.
3. Does not require anti-corrosion coating.
4. The presence of chambers provides good thermal insulation qualities.
5. Installation of the window sill can be done independently.
6. Easy care during use.
7. PVC perfectly resists long-term exposure to moisture.
8. Possibility of installation for both plastic and wooden structures windows

Selection of tools and material

High-quality installation of a plastic window sill with your own hands can be carried out only with the right choice source material, tools and accurate implementation of installation recommendations.

During installation you will need:

• Window sill made of polyvinyl chloride and caps for its ends.
• corner, building level, marker and tape measure.
• Silicone sealant and polyurethane foam.
• Jigsaw, hammer drill and screwdriver.
• Cement mortar.
• A stationery knife and a clean rag.

Preparing the installation site

A new PVC window sill will look good if you carefully prepare the area for its installation. This is especially important when replacing old windows. After dismantling the outdated window opening, check for chips and cracks around the window. If necessary, the masonry should be restored. Remove fine debris and dust, and apply a primer to the base.

Important! Before installing a PVC window sill, check the quality of installation of the window frame to avoid cold penetration into the house.

Once the new window has been installed and the base for installing the PVC window sill has been carefully prepared, you can begin measuring the space and preparing the window sill for installation. Before installing a plastic window sill, it will have to be cut to the width and length of the opening.

The width of the window sill can be the same as the slopes or a little larger. The length of the product must be cut 4-6 cm longer than the distance between the slopes. Two horizontal cuts are made in the vertical slopes, into which the window sill will be inserted.

Plastic window sills can be installed in three ways:

• To fasten the product, polyurethane foam or special glue is used.
• The window sill is secured using brackets.
• To install a PVC window sill, a profile is used.

Instructions for working with glue

Step #1. On the side slopes of the window opening, cut two notches at the same level, and clean the window sill base well and, if necessary, deepen it.

Step #2. Before installing a new window sill, dry the surfaces and coat them with primer.

Step #3. Insert the cut-to-size window sill into the grooves under window frame.

Step #4. Use wooden wedges to wedge the window sill between the frame and the window opening. Insert wedges in the middle and edges of the window sill.

Important! There should be no gaps between the window sill and the window frame.

Step #5. Install pads between the window sill and the window opening so that the surface of the structure is horizontal.

Step #6. Pump polyurethane foam with a small expansion coefficient between the PVC window sill and the window opening. To prevent the window sill from rising, place a load on top of it.

Step #7. Install plugs on the side cuts.

Important! A window sill that protrudes strongly beyond the wall must be strengthened by applying cement mortar.

Step #8. 12 hours after foaming the window sill, remove the load.

Instructions for installation on a rigid base

This installation of a PVC window sill is considered the most durable and durable.

Step #1. Mark and trim the window sill as in the previous installation option.

Step #2. On pre-cleaned window opening perform a cement screed. Adjust the height of the screed so that the new window sill fits exactly into the grooves of the window frame.

Step #3. To fasten the product use liquid plastic or silicone glue.

Instructions for working with brackets

Step #1. A stand profile is installed under the window and securely fastened. At least 4 brackets are mounted in it with self-tapping screws. Maximum distance between the brackets there is 25 cm. Fastening is best done with self-tapping screws with press washers.

Step #2. The PVC window sill is being installed on brackets. When properly seated tightly, you should hear a click.

Step #3. The window sill and frame are connected using screws.

Step #4. The wide window sill is additionally fixed to cement mortar.

Instructions for working with metal profiles

Step #1. Attach to the window sill block in a horizontal position metallic profile L or U-shaped.

Step #2. Install the cut window sill into the groove and secure it with self-tapping screws.

Step #3. Blow out the free space between the new structure and the base with foam.

Step #4. The structure can be further strengthened using cement mortar.

1. When working with a hammer drill, protect your hands with gloves and your eyes with special goggles.
2. Polyurethane foam adheres much better to a wetted surface. Before foaming, wet the surface of the base and the back of the window sill using a spray bottle.
3. It is best to pump the sealant in strips, leaving space between them.
4. The protrusion of the window sill beyond the window slope line should not be more than 60 mm, and the length should exceed the width of the window opening by a maximum of 15 cm.
5. If the length of the window sill should be strictly horizontal, then the width should be slightly inclined from the window. The slope should not exceed 3%.
6. When installing window sills, it is necessary to take into account the location heating devices so as not to worsen the microclimate of the room.
7. The rigidity of the PVC window sill increases significantly with use wooden backing. All bars must be the same size. The length of the bar is equal to the distance from the window frame to the edge of the opening. The distance between the fixed strips is 25 cm.
8. After the foam has completely hardened, its excess is removed. The wall under the window sill is puttied and decoration begins.

After reading the article to the end, you learned how to properly install a polyvinyl chloride window sill in several ways. Each installation method has its own advantages and disadvantages. At the right approach and high-quality execution, installation of a new window sill is not as complicated as it seems at first glance.

Watch another video about installing a window sill. The apartment owner shares his installation experience.

Modern trends require innovation in every area of ​​life, including renovation. With the development of technology, new materials and products appear that differ greatly best performance. If previously it was necessary to install two window frames to provide heat and sound insulation, now it is enough to install a thin metal-plastic window, which perfectly copes with the same functions, and is also more efficient. Instead of a heavy concrete window sill, PVC products are now used, which are important to be able to install correctly to achieve optimal performance.

Peculiarities

Installing a plastic window sill in an apartment or house can be done for various reasons. The simplest of them is the wear and tear of the old window and its complete replacement, including all its components. A long time ago metal-plastic windows have gained authority and are very popular, as they are easy to install, and their service life and performance characteristics very high.

Thanks to modern window is a universal product; you can add a wide variety of window sills to it that will meet the stylistic goal of the room and provide comfort.

The most versatile option is considered to be a PVC window sill, which fits perfectly with the window itself, creating a single composition. In addition, the cost of such a product is much lower than that of more sophisticated options of the type natural stone. In order to accurately determine which window sill is best to install in the room, you need to know the advantages and disadvantages of this window element.

Among positive qualities you can note:

• resistance to moisture and different temperatures - a PVC window sill does not change its shape or appearance in any way;
• no need for serious care of the product;
• light weight of the window sill, unlike similar options;
• does not need painting to refresh the appearance;
• does not shrink like wooden products;
• the ability to install this element of any size, shape and even color depending on the wishes of the owners.

If we talk about negative sides, then these should include:

• Fragility of the product - if used carelessly, dents and even holes may appear on the window sill.
• If upper layer has a gloss, it is susceptible to scratches, which will quickly deteriorate the appearance of the product.
• Weak resistance to very high temperatures. You should not place hot pots and kettles on a PVC window sill, as this can deform the surface, ruining it forever.

There are quite a lot of options for materials from which a window sill can be made, but most often they choose those that look good and have the desired characteristics. If speak about PVC structures, then an important advantage is that it is inexpensive and does not require most additional work, which are inherent in other materials: treatment against corrosion, rotting, painting.

In addition, thanks to their excellent characteristics, these window sills comply with GOST, because they are not harmful to humans and have parameters that ensure the safety of residents.

Style and design

Since metal-plastic windows are often white, PVC window sills were initially made only in this version. With the growing popularity of this product, different color solutions for both windows and window sills began to appear. Most often a variation white is an imitation of wood, which is used in bedrooms or children's rooms. In addition, this option allows you to install modern designs V wooden house, which will not stand out externally, but fit into the concept of the building.

For the production of such products it is used laminated PVC films under the tree. To impart the desired properties, additional impregnation with melamine resin is carried out.

This way you can give the surface the look of any wood, be it oak, alder or cherry.

In addition, window sills finished with natural stone, most often granite or marble, are also popular. Thanks to this solution, you can avoid buying an expensive and heavy product, but get the same nice option window decoration. If you need to somehow decorate the room, which is especially often the case with a children’s room, then you can resort to using colored window sills.

They may have different texture and shape, which are selected taking into account the wishes of the client.

If we talk about convenience, then for each type of house there are options of different lengths and widths, so that you can manage the space as correctly as possible. Brickwork differs in width from the walls panel house, that’s why we need different window sills here. If we talk about original design solutions, then you can make a window sill-tabletop that will perform two functions at once, thereby making it possible to do without buying a table.

This option will look good in small kitchens or bedrooms where you need to place a lot functional zones in a small space.

The use of glossy or matte coating, original shapes and sizes - this is all that the owner of a PVC window sill can get. Often, such options are made to order and are a little more expensive, but the appearance of the room with such an accessory will be inimitable. Each owner decides for himself what to install in his home based on taste preferences and financial capabilities.

What to install?

Usually window sills are made standard sizes to fit the most common window options. But due to the fact that frames can often have atypical characteristics, very often it is necessary to trim the product on the spot so that it fits under the window as well as possible. To approach the process correctly, the first step is to carry out everything necessary measurements, and only after that cut off the excess.

It is best to mark with a pencil or marker so that it is clearly visible.

Necessary tools and components

Any repair process requires correct selection tools to provide maximum efficiency work, and right choice components will make the process of operating the product simple and not causing any problems or worries.

To install a PVC window sill, you need to have:

• the product itself;
• corner for determining the slope of the window sill;
• level to check the evenness of installation of the product;
• marker with tape measure for marking;
• silicone sealant for sealing joints and seams;
• polyurethane foam to eliminate cavities between the window sill and the wall of the house itself;
• jigsaw for cutting off unnecessary parts;
• hammer drill to dismantle the old structure and provide necessary conditions for new;
• screwdriver for fastening the window sill;
• self-tapping screws;
• cement mortar for leveling the surface under the new window sill and sealing the installation sites of the structure;
• a stationery knife and clean rags to give the window structure a finished look.

In addition to the basic tools and materials, you should also not forget about additional ones, which include slopes, thanks to which the window is transformed, creating a completely different perception of the room.

The cover on the window sill, which is put on both sides of the product, is necessary in order to frame it beautifully and close the cavities into which dust or moisture can get, from where it will not be easy to remove it. Usually it looks like a smooth strip with protrusions at the ends.

When installing it, you need to cut it in half and then measure it required amount so that it fits perfectly on the new window sill.

In order to cut a window sill, you can use several tools:

• Hacksaw for metal, any home owner will have one. The process of cutting with it will be lengthy and will require considerable physical strength.
• Jigsaw, which is best suited for such work, as it cuts off excess parts quickly and without much difficulty. For best result It is important to set the pendulum stroke to zero, and for the work choose a metal file with small teeth.
• Bulgarian helps to trim unnecessary parts very quickly and accurately, but at the same time it is very noisy and dusty during operation.
• Cordless saws are cordless instruments. It is easy and convenient to work with such equipment, but their disadvantage is the high cost of the tool.

When all the tools are ready, you can begin work, in which it is important to follow all the recommendations, otherwise the product may become distorted and the appearance of the window will suffer greatly from this.

It is important to remember that the places that need to be foamed must dry out for some time so as not to change their characteristics.

Preparatory work

In order to install a new PVC window sill, the first step is to dismantle the old structure. Depending on what material it was made of, certain work will be carried out. It is best to remove old parts carefully so as not to damage the masonry and have to restore it. If it was not possible to carry out dismantling effectively, then additional procedures will be needed.

First of all, the surface where the window sill will be installed is cleared of debris and unnecessary parts. Next, you need to calculate what dimensions the new window element has and whether it is necessary to change the dimensions of the opening. If both designs had approximately equal performance, then the process will proceed faster. If there is an obvious difference, then it is necessary to carry out work to adjust the size of the window opening to install a new PVC product.

If the window sill is thinner than before, then the difference can be eliminated using cement mortar; if it is thicker, then the excess part can be removed using a hammer drill, after which you will have to make a concrete screed.

When calculating the height of the base for installing a new element, it is important to take into account the gap for the foam on which the product will be attached. It must be at least 2 cm. If necessary, additional work is carried out to adjust the grooves in the side slopes. In order for the window to keep the cold out, it is important to exclude any possibility of this, which is why the junction of the frame and the window sill is coated silicone sealant, after which the installation itself takes place.

When calculating the width of the window sill, it is important to decide where exactly it will begin and end. You can make it the width of the window or leave a margin of a few centimeters so that the edges on each side go into the wall. Typically, such gaps are four to six centimeters long.

Initially, you need to make cuts in the slopes into which the new PVC window sill will be inserted.

Installation subtleties

In order to install a new PVC window sill with your own hands, you need to correctly install the structure. The installation process of such parts can be carried out using:

• polyurethane foam and special glue that are used to attach the window sill;
• brackets for fixation;
• profile for PVC installations products.

The simplest and most convenient option for installation is the one with foam. The first step is to prepare wooden wedges that will serve as supports for the new window sill. They are placed over the entire surface of the prepared base. It is important to check the levelness of the installation using a level and note the tilt of the product. It is necessary that the bevel be directed into the room in order to direct condensation not towards the stove, but into the room.

If any inconsistencies arise in these indicators, then the wooden wedges can be increased or, conversely, decreased depending on the situation.

All work is carried out in stages to avoid installation errors and unsatisfactory results. Once the wedges are the right size, free space between the window sill and the base is covered with foam. To prevent the angle of inclination from changing, it is important to install a weight on the windowsill that will provide the required resistance, so the foam will harden correctly. For complete hardening, at least two or even three days should pass, after which you can remove the weighting and use the window sill.

The process of installing a window and window sill goes step by step, and it is important to take into account all the stages in order to get a decent result in the end. This process is inextricably linked with the finishing of the walls, therefore, when planning the installation option, you need to think in advance about how further work will be carried out.

• If you plan to install a window sill before finishing it with sandwich panels or plasterboard, then there is no need to ditch the bottom. As the thickness increases, the slab will be pressed using the finishing material.
• If the slopes are covered with varnish or putty paint, then in this case it is necessary to trench the surface.

If you plan to use massive elements in the form of wooden panels, lining, cork to finish the window, Venetian plaster, then it is important to take into account the protrusion of the slab, taking into account the thickness of the coating. Otherwise, it will be recessed inside the opening, which will not look aesthetically pleasing.

Thus, replacing a window requires that the old concrete window sill also be removed and replaced with a new one. For the convenience of further work, it is advisable to remove the old structure without causing any major damage to the masonry.

You can replace a heavy and outdated window sill with a modern PVC product, which is not only light and quite durable, but also has a varied appearance that can be matched to the style of the room, which is very convenient.

The work process comes down to the following steps:

• Installation of a new product, inserting it into pre-prepared grooves.
• Aligning the window sill relative to the window using wooden wedges.
• The process of fixation, when the window sill can be secured using polyurethane foam, which will provide excellent performance characteristics for many years.
• The use of plugs, which may have different shapes. Depending on the design features of the window sill, they can be without lugs, if the thickness of the product is quite large and there is a desire to make it look like a stone monolith, or with lugs if minimum thickness and a simple version of the window element.

To change the window sill quickly and correctly, it is important to complete all the steps, which include dismantling old structures, installing new and Finishing work. This is important because incorrect dismantling of an old product will add unnecessary work, inaccuracies in installing a new one will lead to operational problems, and improper finishing work will affect the final appearance.

To remove the foam that will remain after installation, you must first cut it off using a utility knife, and then apply a layer of tile adhesive, which must be puttied when dry. Only after this can the surface be painted or wallpapered.

Dimensions

To do high-quality repairs, you need to select the right materials for it. When replacing windows and window sills, it is worth choosing the correct dimensions of the latter. Standard width the dimensions for it will be:

• 50-60 cm, if installation will be carried out in a brick house;
• 20-25 cm for panel houses.

The widest window sill that can be found on the market is 80 cm, and the narrowest is 20 cm. If we talk about length indicators, it can be from 1.5 meters to 6.

All unnecessary parts are removed during the installation process so that the resulting window has aesthetic appearance.

If we talk about atypical windows, for example, small structures in a bathroom or other room, then in this case there is no need to use a large window sill, the best solution the width will be 10 cm. Almost all standard products have a thickness of 2 cm, which is sufficient for moderate loads and full use of the window element. There are also thinner products, where the thickness is 1.8 cm, which implies lighter loads on the surface.

If the window sill is planned to be used as a table, then its width must be sufficient for this, so products are produced in widths from 60 cm to one meter. This option can be used in almost any room where you need to minimize the amount of furniture and increase functionality.

Colors

Due to the emergence of new materials for the manufacture of window sills, options have also appeared color solutions for such products. The simplest one is to use various colors and shades, which can either be transferred to the window itself or go separately as decorative element premises.

Often such accents are made in the kitchen, bedroom, nursery, where there is an opportunity to add color to the interior.

For something more sophisticated appearance you can use window sills imitating natural stone, marble and granite, or wood, which looks especially beautiful in wooden buildings. The variety of options for window sills can include not only color, but also texture, which can be glossy or matte.

For original style and to give the interior an expensive appearance, it is better to use gloss, but in a quieter room the matte version will look great.

Window repair is always accompanied by nuances that it is advisable to know and skillfully use.

• If you need to use a hammer drill, it is important to protect your face and hands with glasses and gloves so that nothing gets on them.
• When working on the base for a new PVC product, you need to clearly know its dimensions, so as not to knock off the excess part of the wall, but also not to make the hole smaller than necessary.
• The gap that forms between the window sill and the surface on which it rests must be sealed with foam. To help this material adhere better, it is important to wet the surface before use.
• When choosing the width of the product, it is important to know that its protrusion beyond the slope should not exceed 6 centimeters. If this is neglected, the circulation of air masses may be disrupted and the windows will fog up heavily.
• When repairing a balcony and replacing windows with access to it, the thickness of a standard window sill will be 20 cm, but if you have suitable dimensions, you can use even meter-long products. You can also fix the product on the balcony using foam or glue, depending on the situation.

For useful tips on choosing and installing window sills and slopes, see the following video.

Successful examples and options

• You can install windows both in a wooden house and in a brick one, and depending on this you can choose the color of the entire structure and design features certain parts.
• Usage wooden window sill in combination with a frame in the same color, it blends harmoniously with the entire house, which is finished with modern materials imitation wood.

When replacing old window structures, you must immediately install new window sills from modern materials. Today, plastic products are at the top of their popularity. The width of the PVC panel is 60 cm, which makes it possible to install them with almost any wall thickness. Read on to learn how to install a plastic window sill efficiently and reliably.

1. Preparatory work
2. Exception - installation of wooden structures

Preparatory work

IN preparatory stage includes measurement and design selection, selection of tools, purchase of building materials. If the double-glazed windows have not been replaced, the old window sill board will need to be dismantled. When replacing a window, the old window structure is completely removed. Installation of a new double-glazed window is carried out by specialists from the manufacturer. Installation of a plastic window sill can also be carried out by specialists or by the customer himself.

Installation of a plastic window sill is carried out only after installing the window frame and double-glazed windows.

When replacing only the panel, you must first take the correct measurement:

1. Measure the width of the window opening. Add another 10 cm and get the total length of the structure.
2. The width of the panel is equal to the distance from installed window to the corner of the wall plus 5 cm on the ledge. It is not advisable to make the base of the window wider, since air circulation is disrupted, which leads to fogging of the glass.

Tools and materials

To install a plastic window sill with your own hands, you will need a set of tools:

• carpenter level;
• electric jigsaw or grinder;
• carpenter's knife and hacksaw;
• ax and hammer;
• square;
• marker and masking tape.

The following materials should be prepared:

• sealant;
• gun and polyurethane foam;
• window sill panel;
• three sets of plastic or wood bases of different widths;
• two end caps.

Preparing the installation site for a PVC window sill

Using a hacksaw, electric jigsaw, an ax removes the old structure and window frame. Along the edges wooden product deleted cement strainer. Clean the opening from loose building material and insulation.

Specialists install a new PVC window so that a distance of at least 5 cm is maintained between the base of the window opening and the bottom of the frame. The opening left will serve as a support for the new structure.

If you plan to install a PVC window sill with your own hands that is longer than the window opening, grooves are selected on the sides at the base. For this you need a hammer and a grinder. First, they cut the wall, and then carefully knock it out with a hammer. construction material. The height of the groove is such that new panel went in easily. The length of one groove is more than 5 cm.

The distance between the base of the window opening and the frame is foamed with mounting foam or covered with insulation. After the foam has completely hardened, cut off the excess with a carpenter's knife. When installing plastic panel the size of a window opening, mark the mounting locations of the brackets at a distance of no more than 80 cm.

Before installing the PVC product, you must once again clean the base of debris and dust. Be sure to moisten the brick with water to ensure adhesion.

Installing a plastic window sill

All materials have been purchased and the tools are ready to go. The installation of the window sill begins.

1. Determine the width of the structure. It can be the same as the width of the old base. When replacing windows and installing a new PVC product, its new width is calculated. Ideally, the edge of the panel is located in the same plane as the middle of the battery heating system. When installing a panel, the edge of which protrudes beyond the battery, it is equipped in the panel itself ventilation holes. Such holes are also made in the casing in front of the battery. They are needed for good air ventilation in front of the window, which protects window design from the appearance of condensation.
2. Select the length of the plastic base. When two windows are located nearby, preference is given to one with a holistic design. When installing PVC window sills of a size equal to the window opening, the length of the panel is made shorter by 10 mm.

According to the selected panel sizes, an order is made at hardware store. The shop's craftsmen immediately carry out trimming according to the specified parameters. Sometimes they buy a blank and do the trimming at home themselves.

1. The support for mounting plastic window sills is made from pre-purchased substrates. The width of the bar must be at least 50 mm, and the length must not exceed the width of the product. The shortest underlay should be 100 mm less than the width of the panel. Special attention given to the thickness of the substrate. After installing the bar, the panel should fit into the window sill space between the lower window frame and the substrate.
2. Before installing the support bars, the surface of the base is leveled with cement mortar. One structure requires a minimum of three substrates. The optimal distance between the bars is 40–50 cm.
3. The supports are aligned strictly horizontally and the correct installation is checked using a level in all planes. They make a control installation of the plastic panel. The result correct fastening The substrate is the tight fit of the structure into the gap between the edge of the window and the support.
4. Installing plastic window sills with your own hands begins with removing the protective film from the side adjacent to the window. Install plugs on the ends of the panel. Carefully insert the structure onto the fixed supports.
5. The panel fits tightly into place. Lightly tap the product to align it with the window frame. Carry out level control measurements in two directions.
6. Gaps of 5 mm are left on the right and left, which makes it possible to protect the panel from deformation. Upon completion of installation, the gaps are sealed with sealant.
7. Carefully foam the space under the plastic window sill with polyurethane foam. If the panel is poorly fixed, the increase in foam volume will cause it to warp.
8. Spacers are installed along the edges and in the center of the window opening. You can make them yourself or buy transforming spacers in a store. They do not allow the foam to rise established base window opening. When the foam hardens well, the spacers are dismantled and the excess polyurethane foam is cut off.
9. After the slopes are installed, they begin to seal the gaps. Painting tape is glued along the edges. Fill the gap with silicone sealant. Remove the excess and remove the masking tape.
10. The protective film is removed after completion of work.

An exception is the installation of wooden window sills

Window sills made of oak, pine, beech, ash or cherry make the interior of the house warmer and more comfortable. Giving preference natural materials, many owners of apartments and houses instead artificial plastic choose natural wooden bases. Stores sell wooden panels coated with varnishes of different shades with different surface textures. Having made your choice, proceed to installing a wooden window sill with your own hands.

Preparing the walls

Clean the base from dust and debris. The surface is moistened with water to ensure good adhesion. If there is a niche under the window, metal or wooden supports so that the panel does not hang in the air. In this case, the wooden structure is dressed in a metal frame.

Window sill leveling

The window sill board is first placed using wedges, ensuring that it slopes into the room by only 2 degrees. Along the window, the board is positioned strictly horizontally. When all the necessary indicators have been achieved, the wedges are strengthened with a small amount of solution by removing the workpiece.

Fastening a wooden window sill

A layer of mortar is laid on the base, covering the wedges by 5 mm. Mostly cement mortar is used, but putty or gypsum can be used. Place the window sill in place and press it tightly against the wedges until it stops. Any excess that appears is removed with a spatula.

Advice! To be on the safe side, an insulating film is first laid on top of the solution to protect the wood from direct contact with the aqueous solution.

Sealing and strengthening of fastening

For more reliable fixation from the facade side, long self-tapping screws are driven through the window frame into the end of the wooden window sill. After completing the fastening of the structure, small cracks are sealed with liquid acrylic.

Often when conducting overhaul The old windows in the room have to be replaced. However, window installation cannot be considered complete without exterior finishing, We will talk about how they install and stand) in this material.

Common installation methods

There are several solutions that allow you to find the answer to the question of how to install a window sill with your own hands:

1. The structure can be fixed using an adhesive composition. This is enough old way, which is extremely rarely used by craftsmen today due to the emergence of more reliable options.
2. One of the most simple solutions- use of self-tapping screws. The fasteners are screwed into pre-prepared holes in the window sill. The use of special pads and polyurethane foam makes it possible to add rigidity to the structure.
3. The next method involves using spring metal brackets as fasteners. The latter are screwed to the window sill profile using the same self-tapping screws.
4. And finally, the last method is to seal the space under the window sill with pads until the edges of the plane fit under window frame achieving an increased level of density.

Tools and materials

How to install a plastic window sill with your own hands in the most basic way? To do this you may need the following tools:

• building level;
• screwdriver;
• gun for laying polyurethane foam;
• perforator;
• jigsaw;
• pencil;
• roulette.

Preparatory activities

First of all, you should prepare the above tools, which will definitely come in handy during the work process. Next you need to make correct measurements. The aesthetic appearance directly depends on this installed window sill and its reliability.

When taking measurements, it is important to take into account not only the parameters of the installed canvas, but also whole list additional characteristics. The location of the existing radiator deserves special attention here. If the latter is installed high enough, the presence of a free space of a few centimeters to the lower edge of the window sill can lead to disruption of air circulation in the room and deterioration of the microclimate.

When taking measurements, it should be taken into account that the length of the window sill should be greater than the space of the window opening. The width of the product can be chosen arbitrarily, depending on personal convenience and needs. Convenient option there will be a window sill that protrudes from the wall at a distance not exceeding 8-10 cm.

Window sill trimming

So, let's look further at how to properly install a window sill. Sometimes during installation it is necessary to trim the product so that it matches the parameters of the window opening. The largest window sills reach a length of 3 m or more. The width of the structure can be from 25 to 70 cm.

If the window sill is too large, excess material can be cut off from the side where it attaches to the wall. Particular attention should be paid to the cutting line. It must pass without touching the stiffening ribs, which are located inside the window sill. Thus, the structure does not deform during operation and will be securely connected to the frame.

To trim the window sill, it is recommended to use an electric jigsaw. It is allowed to use a small hacksaw for wood or plastic, depending on the material of the structure. The work should be done slowly, which will avoid chips and scratches on the front surface of the window sill.

When sawing products, do not forget about safety. Since broken pieces of material can get into your eyes, it is recommended that you wear assembly glasses. To protect your hands, you should use gloves or work gloves.

How to install a plastic window sill: basic steps

Installation of plastic window sills is quite simple:

1. First, the surfaces are thoroughly cleaned. Pollution is eliminated and garbage is removed.
2. Having used it, you must determine the horizontal position of the structure and set the beacons. Typically, when installing window sills, their plane is tilted down by about 5 mm. This solution allows the formed condensate to drain from the plane.
3. How to install window sills on plastic windows? The structure sits on a special glue or building mixture. As alternative solution You can resort to fixing the plane with screws on mechanical supports.
4. On next stage free space between concrete slab and the window sill is filled with polyurethane foam. Excesses protruding outwards are carefully removed using a stationery knife.
5. Finally, special plugs are installed on the end edges. The surface of the window sill is removed from the protective film.

How to install window sills on plastic windows correctly? To do this, there should be a free distance of approximately 6-7 cm between the heating radiator and the lower edge of the product plane. Only in this case warm air will rise freely from the battery, drying the double-glazed windows and slopes.

How to install a wooden window sill?

Installation is much more difficult. Before you start working, you should pay attention to the quality of the source material. The window sill board should not contain obvious flaws in the form of chips, knots, or other defects. Moreover, you should use a well-dried board. Otherwise, the latter may crack during operation under the influence of sharp jumps temperature and changes in humidity levels.

How to install a window sill in this case:

1. The existing base is planed on all sides, after which teardrops are created on its back surface. The latter are small gutters 5-6 mm deep and 7-8 mm wide.
2. A felt lining impregnated with antiseptics is placed on the back surface of the board.
3. The prepared window sill is inserted into the openings in the wall. The teardroppers are installed on pre-prepared wooden blocks. Structural elements are fastened with nails.
4. The edges of the structure are strengthened with gypsum mortar.

Craftsmen who are well versed in how to install a wooden window sill recommend making a fairly impressive slope into the room, which should be about 20 mm. This avoids the accumulation of condensation on the surface of the product and prevents rotting of the material.

Installation of slopes

Upon completion of the installation of the window sill, slopes should be made. First of all, you need to resort to aligning the window opening vertically and horizontally. The easiest way to cope with the task is to use polyurethane foam. The latter will serve as good protection for slopes from freezing.

Surfaces can be reinforced with mounting mesh or plasterboard. The main task is to maximize the alignment of the planes, as well as the formation of a smooth texture. The top of the slopes can be coated with paint, choosing the color based on the features of the interior solutions.

If the edge of the window sill protrudes into the room by 10 cm or more in relation to the edge of the wall, it is recommended to strengthen the structure. For these purposes, it is worth resorting to using metal corners. But even when implementing such a solution, you should not overload the edges of the window sill during operation, as this may cause deformation of the plane.

Particular attention should be paid to the conditions for installing the window sill on the balcony. In order for the surfaces to “grab” firmly, it is advisable to maintain the air temperature in the range from +16 to +20 o C for several days.

When installing a window sill, it is recommended to apply a lot of polyurethane foam at the ends and in the middle part of the product. To strengthen the structure, the use of silicone sealants and glue is allowed.

Eventually

As you can see, installing a window sill with your own hands is a completely doable task. The main thing is to approach the work carefully and not miss moments that may negatively affect the subsequent operation of the structure.

The attractiveness depends on the installation of window sills external design window opening. Failure to install them will not only make the room look unkempt, but will also create some inconvenience. In particular, the homeowner will have to regularly eliminate condensation leaks formed on the windows. Otherwise, annual finishing and renewal of surfaces will be required.

Content:

• What is important to know before installing a window sill with your own hands?
• Preparing to install a PVC window sill
• Video tutorial. DIY PVC window sill installation

Photo 1 - Plastic window sill photo

Practical, attractive and inexpensive plastic window sills most often installed together with the same windows, although others are possible design solutions. Installation of window sills does not require special skills, but you need to follow the technology exactly and perform all actions carefully.

List of materials needed for installing a PVC window sill

What you need to know for a successful window sill installation

Before starting any work, you need to carefully study the accompanying documents for all materials and tools used, if you have not used them before. This fully applies to the installation of a plastic window sill.

For example, it is very important to know at what temperature you can work with polyurethane foam. This information is on the product label. When choosing this material, you should give preference to products with the lowest coefficient of expansion, which will prevent the window sill from rising. Perfect option- use a spray foam gun. In this case, as a rule, professional material is used, which does not expand significantly.

If you are going to install a window sill in a window over 3 meters long, you will have to use additional parts that need to be carefully adjusted and glued, or special fillers for the joints.

Preparing to install a window sill

In order for the window sill to serve for a long time, it is important to correctly determine its dimensions. The width is calculated taking into account the following components:

Window sill width :

• Desired distance from the inner surface of the wall. Experts do not recommend making it more than 15 cm, because it can become a hindrance. It is also important to consider the location of heating devices. A window sill that is too wide can cause condensation to form on the side slopes and glass surfaces.
• Another 2 cm is added for the entrance of the window sill under the window.

To determine the length you need to measure the window opening using a tape measure and add another 10 cm to this value. This is necessary so that the cut edges of the window sill are not visible.

Important!

After taking all the measurements, check them again. It’s better to stick to the rule: measure seven times, cut once. In this way, you will be able to avoid annoying mistakes, which are quite difficult and sometimes impossible to correct.

All that remains is to cut off all the excess and you can begin installation.

Video installation of a PVC window sill. Main stages

First you need to clean the surface of the window opening from debris and dust. This must be done carefully so that subsequent foaming is successful. The next step is to try on a window sill that has already been prepared to size. If necessary, it is trimmed in the right places.

Photo 3 - DIY PVC window sill installation

Next step- installation of a window sill. To do this, it is inserted into a special support profile located under the window frame by 2 cm. Using a level, the surface of the window sill is set and wooden supports are placed, which are necessary to ensure the design rigidity during operation of the window sill.

The window sill canvas is installed with a slight slope directed into the room. This is necessary so that when condensation forms or watering flowers, excess moisture does not stagnate, but rolls off the windowsill.

Photo 4 - Do-it-yourself PVC window sill installation

The next stage is foaming. It is quite important and must be performed with special care. Before proceeding directly to the process itself, the surface of the window opening must be moistened. This technique allows for improved adhesion and a more uniform distribution of the polyurethane foam.

First they cover with foam inner surface window sill and the junction with the mounting profile. This allows you to avoid the appearance of such an unpleasant phenomenon as cold bridges.

Photo 5 - Do-it-yourself PVC window sill installation

After this operation, experts recommend installing a small weight on the windowsill, which is removed after the foam has completely hardened.

Polyurethane foam is afraid of ultraviolet radiation, so it should not be exposed to sunlight. Even thin layer plaster or other material can protect it.

All that remains is to install the plug, cutting it off from the workpiece desired length and lubricate it with cosmofen, press it to the ends of the window sill. And on final stage needs to be removed protective film and fill all joints with silicone sealant, doing this very carefully.

Photo 6 - DIY PVC window sill installation

From the above, it becomes clear that even those who have a minimum of knowledge and skills in this area can cope with the installation of a plastic window sill. It is only important not to allow technology violations and not to rush.