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Installing a PVC window sill is a relatively simple process if there is basic knowledge about the process of construction and repair, as well as certain practical skills. Plastic window sills are now quite popular: they do not need to be painted, they are available up to 60 centimeters wide, which allows them to be installed with any wall thickness. In addition, they are best combined with the most popular windows today - plastic.
Taking measurements and choosing a window sill
Before proceeding directly to the installation process, you need to take measurements and do them correctly, because it directly depends on appearance window sill, and its functionality.
First of all, we measure the width of the window and add 10 cm to it. This will be the length of our window sill. Now we measure the distance from the corner of the wall to the window, that is, the thickness of the wall to the window.
We add 5 cm to the result obtained during the measurement process. If the protrusion is larger, it will disrupt the proper air circulation, and your windows will systematically fog up.
Window sill installation
Here, all measurements are taken, the window sill is selected, and you can begin the installation process. A special profile is installed on the lower part of all plastic windows, to which the ebb is attached from the outside. To the same profile, from inside the room, we will abut the window sill. We measure and cut the window sill of the required width and length. When measuring the width, do not forget to sit 5 cm on the ledge, as well as 1 cm, which will go under the window frame.
Now we try on the window sill, if something interferes with its free installation, for example, uneven slopes, we eliminate the interference with a puncher. It cleans the plane of the wall from dust, debris and dirt, then we select the lining wedges under the window sill canvas using trimming. You can rent a vacuum cleaner with a wall chaser at etools.by - see the website page.
The window sill should fit snugly against the frame, but the main thing here is not to overdo it, otherwise the window sill will be deformed.
The window sill should lie as horizontally as possible, and its front edge should be lowered by three degrees relative to window frame. As soon as the wedges on which the window sill will be installed are selected along the entire length of the frame, you need to fix them with plaster so that they do not “walk” during the installation process.
Now we remove the window sill, wet the wall and apply a lime-gypsum mortar. The solution layer should be 1.5 cm above the level of the wedges, we mount the window sill on it, press it tightly so that the window sill “sits” on the wedges. In this case, the excess solution is removed flush with the wall and wiped off.
If you install a window sill on mounting foam- do not overdo it, because the foam expands greatly during use and can move the window sill from its place, then the whole process will have to start over. Install and fix the window sill in with spacers. Fill in the voids with foam. After it is completely dry, remove the spacers and cut off the excess foam. Be sure to check the quality of the installation with a level, if something does not work out, use a hacksaw to remove the mounting foam and repeat the whole process from the beginning.
Plastic window sills can also be attached using special brackets, but this method is rarely used. Such fastening is used only if the width of the window sill exceeds its length.
We fill all the gaps between the frame, slopes and window sill with acrylic, it will protect the window sill from moisture penetration and prevent cracks.
Installation process plastic window sill completed. As you can see, there is nothing complicated in it, however, you should always take into account the element of chance, if something goes wrong, then redoing everything again can be much more difficult and costly.
Video instructions for installing a window sill
In the author's video lesson, blogger Sergey Gorbachev examined how home master install a new plastic window sill yourself if the window has already been mounted and is in the opening. In this video, he shares his experience. With the right tool, anyone can do this job.
What tool do you need
1. Diamond wheel puncher for cutting window sills and walls. Preferably smaller than in the video, as large ones are inconvenient to work with.
2. Perforator. If there is no puncher, you can use a construction chisel.
3. Construction chisel.
4. Screwdriver.
5. Hammer.
6. Hacksaw for wood.
7. Hacksaw (for cutting side plugs), you can use another tool.
8. Level.
9. Square.
10. Pencil.
How to install a window sill
We remove all unnecessary. The groove for inserting the window sill at the bottom of the window must be clean. We make markings at the bottom of the window opening for chiselling the main one. Its upper line must be at least 5 mm higher than the line of the lower edge of the window to ensure the adjustment gap. The part that protrudes beyond the width of the window opening is selected within 4-6 cm.
On the wall we mark a groove for the protruding part of the window sill with a margin of 1.5 cm. In the depth of the wall in this place, it should be deepened by 3-5 cm.
We grind with a grinder according to the markup and hollow out with a perforator. The main one needs to be hammered up brickwork. The minimum depth along the slope is 1 cm.
Prepared, cleaned of dirt. Let's take the dimensions. The first one is taken along the depth of the slotted groove in the window opening, minus 5 mm, so that the window sill can freely enter it. The second is the full length, taking into account the protruding part (4-6 cm on each side).
We measure the necessary parameters from a 6-meter workpiece and cut it off. You may already have purchased window sills of the desired length. Mark and cut corners. All.
Window sill ready for installation
Let's try it on. To attach it to the frame, we drill several holes in the center of the mounting groove in the frame. We will tighten the screws from the street. The master has already installed a low tide on each window, so each olive had to be removed.
The ebb is removed, the window sill is installed in place, you can fix it. We fasten through the finished holes with self-tapping screws. Their length is 60-80 mm. We install the drain in place.
The window sill is fixed, now it needs to be leveled. We will exhibit using the usual wooden pegs sliced from a plain board. We poke them in right size with a small margin so that you can clean up the excess when fitting. We substitute one in the middle and adjust according to the level. Wedged along the edges at the top and bottom. We follow the level. We put on the side plugs. The length of the plug is chosen so that it enters the wall by at least 3 cm. When everything is covered with plaster, they will be securely fixed.
Next stage. We foam the space under the windowsill. Probably it was necessary to foam completely, but the master suggested that the surface could swell, so he foamed closer to the edge.
Final actions
The window sill is securely installed, it remains to putty the bottom and sides. Gypsum plaster "Start" was used for putty. Then everything was puttied with finishing putty.
Why is it profitable to install a window sill yourself?
Installation of premium window sills costs up to 1200 rubles per linear meter. Master installed 17 running meters Muyler in less than two shifts. Count yourself. Subscribe to the channel of the author of the video lesson "Favorite video". It will present life's problems and how to solve them.
If the sun is hot in summer. What to do to get away from it?
When replacing old window structures, you must immediately install new window sills from modern materials. Today at the top of the popularity of plastic products. The width of the PVC panel is 60 cm, which makes it possible to install them with almost any wall thickness. How to install a plastic window sill qualitatively and reliably, read on.
- Preparatory work
- Exception - installation of wooden structures
Preparatory work
AT 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 will need to be dismantled. When replacing a window, complete removal old window structure. Installation of a new double-glazed window is carried out by the manufacturer's specialists. Installation of a plastic window sill can also be carried out by specialists or independently by the customer.
Installation of a plastic window sill is carried out only after installing the window frame and double-glazed window.
When replacing only the panel, you must first make the correct measurement:
- Measure the width of the window opening. Throw another 10 cm and get overall length designs.
- The width of the panel is equal to the distance from the installed window to the corner of the wall plus 5 cm per ledge. It is not advisable to make the base of the window wider, since air circulation is disturbed, which leads to fogging of the glasses.
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;
- carpentry knife and hacksaw;
- ax and hammer;
- square;
- marker and masking tape.
From the materials should be prepared:
- sealant;
- gun and mounting foam;
- window sill panel;
- three sets of plastic or wood substrates of different widths;
- two end caps.
Preparing the installation site for the PVC window sill
With a hacksaw, electric jigsaw, axes remove the old structure and window frame. Along the edges wooden product the cement screed is removed. The opening is cleaned of broken building material, 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 lower part of the frame. The left opening will serve as a support for the new structure.
If you plan to install a PVC window sill with your own hands longer than the window opening, grooves are sampled on the sides at the base. To do this, you need a hammer and grinder. First, they cut the wall, and then gently knock it out with a hammer construction material. The height of the groove is such that the new panel fits 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 laid with insulation. After the foam has completely solidified, the excess is cut off with a carpenter's knife. When installing plastic panel the size of a window opening mark the attachment points of the brackets at a distance of no more than 80 cm.
Before installing the PVC product, it is necessary to once again clean the base from debris and dust. Be sure to wet the brick with water to ensure adhesion.
Installing a plastic window sill
All materials are purchased and tools are ready to go. Start installing the window sill.
- 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 in the same plane as the middle of the battery heating system. When mounting the panel, the edge of which protrudes beyond the battery, vent holes are equipped in the panel itself. 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 the window structure from condensation.
- Select the length of the plastic base. When two windows are located side by side, one holistic design is preferred. When installing PVC window sills in size equal to the window opening, the length of the panel is made shorter by 10 mm.
According to the selected panel sizes, they make an order at a hardware store. Shop masters immediately carry out trimming according to given parameters. Sometimes they buy a blank, and trimming is done at home on their own.
- The support for mounting plastic window sills is made from substrates purchased in advance. 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 100mm less than the width of the panel. Special attention given to the thickness of the substrate. After installing the bar, the panel should enter the window sill space between the lower window frame and the substrate.
- Before installing the substrate bars, the surface of the base is leveled with cement mortar. At least three substrates are required per design. The optimal distance between the bars is 40–50 cm.
- The supports are aligned strictly horizontally and the correct installation is checked using a level in all planes. Make a control installation of the plastic panel. result correct fastening the substrate is a dense entry of the structure into the gap between the edge of the window and the support.
- Do-it-yourself installation of plastic window sills begins with the removal of 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.
- The panel is firmly in place. Align the product with light tapping in relation to the window frame. Carry out a control measurement of the level in two directions.
- Left and right leave gaps of 5 mm, which makes it possible to protect the panel from deformation. At the end of the installation, the gaps are sealed with sealant.
- Carefully foam the space under the plastic window sill with mounting foam. If the panel is poorly fixed, it will skew from the increase in foam in volume.
- Spacers are installed along the edges and in the center of the window opening. They are made independently or bought transforming spacers in the store. They do not allow the mounting foam to lift the installed base of the window opening. When the foam hardens well, the spacers are dismantled and the excess foam is cut off.
- After the slopes are installed, they begin to seal the gaps. Masking tape is glued along the edges. Fill the gap silicone sealant. Remove excess and remove masking tape.
- The protective film is removed after completion of work.
Exception - installation of wooden window sills
Window sills made of oak, pine, beech, ash or cherry wood make the interior of the house warmer and more comfortable. Giving preference to natural materials, many owners of apartments and houses choose natural instead of artificial plastic. wooden bases. Sold in stores wooden panels, covered with varnishes of different shades with different surface textures. Having made your choice, proceed to install a wooden window sill with your own hands.
Wall preparation
The base is cleaned of dust and litter. The surface is moistened with water to ensure good adhesion. If there is a niche under the window, metal or wooden poles so that the panel does not hang in the air. The wooden structure in this case is dressed in a metal frame.
Window sill alignment
Pre-expose the window sill with wedges, achieving its slope into the room by only 2 degrees. Along the window, the board is located strictly horizontally. When all the necessary indicators are achieved, the wedges are strengthened with a small amount of mortar by removing the workpiece.
Fixing a wooden window sill
A layer of mortar is laid on the base, covering the wedges by 5 mm. Mainly used cement mortar, but you can apply putty or gypsum. Install the window sill in place and firmly press it against the wedges until it stops. The excess that comes out is removed with a spatula.
Advice! For safety net, an insulating film is first laid on top of the solution to protect the tree from direct contact with the aqueous solution.
Sealing and reinforcement
For more reliable fixation from the side of the facade, long self-tapping screws are driven into the end of the wooden window sill through the window frame. After the fastening of the structure is completed, small cracks are sealed with liquid acrylic.
How to take the dimensions of the window sill, how to cut off the PVC window sill? Competent, step by step installation window sill. Read in this article.
Classic setup PVC window sill is the installation of a window sill, which includes the main operations performed in most cases. Of course, there are always exceptions, which we will also talk about, such as VIP installation!
Window sills for plastic windows
On the plastic windows, most often install PVC window sills. Wooden window sills are mounted less frequently. And very rarely, they put stone window sills. The latter have their own installation specifics. We will not talk about them in this article.
How to install a wooden window sill on plastic windows? The technology for installing plastic and wooden window sills is not fundamentally different. Therefore, further we will talk only about the methods of installing PVC window sills.
For those who first decided to install a window sill with their own hands, it is important to know that the quality of the window sill plastic affects the installation process. If you intend to work with an economy class window sill (for example, from the ECO company), then you need to treat it with care. For example, when cutting such a window sill with a jigsaw, large chips may appear.
Where can I buy a PVC window sill in St. Petersburg at an affordable price? - Below, for comparison, I give approximate window sill prices for plastic windows, having dimensions of 250 x 2000 mm:
- Inexpensive and low quality - "Eco" - 350 rubles.
- Inexpensive, but high quality - "Stained Glass" - 450 rubles.
- Expensive and high quality - "Stained Glass VPL" - 1250 rubles.
- Very expensive and very high quality - "Danke", "Moeller", each - 2200 rubles.
PVC window sill marking
Following the turnkey plastic window installation technology, the plastic window sill should be installed after the plastic window has already been installed. In the previous article, I already talked about the fact that the tide with the window sill are installed at the same time.
In order to understand how to install a window sill on plastic windows, you need to understand for yourself that the most important operation in this process is the marking of the PVC window sill. Further, step-by-step verified instructions with a photo, and my video is at the end of the article.
First, take a piece of paper and a pencil. We draw a window in a section in width, in a simple way, in the form of an elongated rectangle. View from above. And we enter the value of the window width in our rectangle.
Secondly, we find the starting point of the markup. This is done in the following way. We remove the size of the window sill in length. We write the value above the rectangle. We get two numerical values in a column that need to be subtracted. As in school, in the first grade))).
The resulting difference is divided in half. And we get the main figure, which is determined by the starting point for marking the PVC window sill. This figure is equal to the distance from the edge of the window sill to the edge of the frame on each side.
Thus, after installing the window sill and slopes, we will have the same:
- The side protrusions of the window sill - "ears" and
- Slope angles
Thirdly, continuing the markup, we take two locksmith squares (90 degrees) with a scale of 30 cm and 50 cm. gap. The main thing to understand is that the position of the square is the future position of the cut-off window sill. It remains only to take the first dimension along the length of the window sill, and write down this dimension on our sheet of paper, on which the starting point for measuring has already been determined.
Fourthly, with the help of the second square, pressing it against the inner wall of the room, we fix the second size along the width of the window sill. After that, the last cutting line of the side protrusion is automatically obtained.
Similarly, dimensions are taken on the right side of the window sill.
After that, the markup is applied to the window sill itself.
This markup we've looked at is the simplest. It is made in a flat perpendicular opening.
It happens that the opening has a step configuration, then it is necessary to take several measurements. But, the principle of markup does not change.
Fifthly, if the opening has an angle, then the marking of the PVC window sill is carried out at an angle. To do this, as in the first case, we press a large square with one side against the window sill profile, and direct the other perpendicular side at an angle. Imagine that this will be the angular cut line. And we attach the second square to the inner wall of the room. The intersection point of the gons is the end point. We fix its value. Further, leaving the second small square in a fixed position, we again attach the large square to the window sill profile at 90 degrees. We fix the second value at the intersection of the squares.
Thus, the marking of the PVC window sill is done. It must also be said that the cutting line of the side protrusion can be, as flush with inner wall premises, and deepened into this wall. It depends on whether the customer will make repairs after installing the window.
How to cut a PVC window sill?
After marking, the PVC window sill must be cut off. For this you can use four tools:
1. Hacksaw for metal. Yes, the cheapest tool, but it requires good physical preparation.
2. Electric jigsaw. The most acceptable option. You can use inexpensive. For example, I have recently been using Interskol. Such a jigsaw costs from 1700 to 2500 rubles.
The main thing when working with a jigsaw is to set the pendulum stroke to the number "0" and use a metal file with a fine tooth.
3. Bulgarian ("UShM" - angle grinder). The most efficient tool. Allows you to cut the PVC window sill most accurately. But, at the same time, the grinder is very noisy and creates a lot of dust.
4. Cordless saw "Makita HS300DWE" and "Bosch GKS 10.8 V-LI". Lightweight, handy, cordless tool, but very expensive. The cost of such a saw is about 10,000 rubles.
By the way, we do not throw away trimmings from the window sill. They will come in handy during installation. Read about it below.
We've made the markup. Cut off the window sill. Now we will learn how to install it. Before that, we need to prepare some materials:
Well, some tools:
- Construction knife
- A hammer
- Locksmith corner 90 degrees (also used for marking, see above)
- Level 40 and 60 cm
- Gun for polyurethane foam with a balloon
- Sprayer with water
- Cargo in the form of improvised means
The most important thing in installing a window sill- these are its reference points, or rather their number. Classic installation is done by most window installers and consists of minimizing these support elements. In this case, the window sill will look quite durable. You can stand on it and you can walk on it. In this case, a slight deflection is possible. As they say, price - quality.
The gap between the window sill and its base in classical method irrelevant. There are many tricks and subtleties that allow you to achieve a certain strength of the window sill with a large gap, for example, from 5 to 15 cm. It is clear that a client who has paid for the classic installation of windows is enough low price, has no idea that literate and correct installation has a completely different value. And having recognized it, he would begin to doubt, and would run away to another company, where they would offer him the initial price, driving over the ears. And the end result would most likely be the same.
This revelation is necessary so that a client who wants really super quality must understand that a lot of money will have to be paid for this quality. But this is not enough. Still, you need to thoroughly study the process for which he pays. For example, the process we are talking about in this article is how to install a window sill on plastic windows? Otherwise, it's just swindled. So there are two options:
- Classic PVC window sill installation
- VIP PVC window sill installation
I consider myself not in the right to condemn the first installation method, since it has the right to life, if only because we live in Russia. And in our country there is such a thing as Russian reality. But, even this installation method must be competent and verified.
Classic PVC window sill installation
So we already have installed window and cut-to-size PVC window sill. As I said above, we need to create anchor points in two, three rows parallel to the window. The first row runs directly along the window. The second row runs along the edge of the inner wall. The third row is the middle one and is necessary in case of a window sill width of more than 400 mm.
In the classical method, the optimal number of support points in each row is calculated as follows:
- Single sash window (width 1000 - 1200 mm) - two supports
- Double-leaf window (width 1400 - 1600 mm) - three supports
- Three-leaf window (width 1700 - 2700) - four, five supports, depending on the width of the window
Further, the support in a classic PVC window sill installation is usually made of wood. And these wooden linings, assemblers saw from old, dismantled, wooden windows which is not so scary. After all, the tree is dry.
First, we expose the first row. To do this, take the largest trim from the windowsill. With it, we select the height of the support so that the window sill is pressed tightly against the window frame.
Also, instead of wooden linings, you can use brackets to press the window sill to the window frame, costing 8 rubles apiece. Expensive, but installation speed increases and simplifies. The number of brackets is the same as the number of supports. The disadvantage is that the bracket serves only as a temporary support for the window sill. Under the weight of a person, the bracket bends slightly, unlike wooden linings. To avoid this, after foaming the window sill (foaming occurs at the very end), you need to wait for the foam to dry completely, about one hour, before standing on the window sill.
When the first support row is set, you can proceed to the second - the extreme row. It is also installed using the same trim from the window sill, and using a level or square. I prefer a square, and set the sill at 90 degrees relative to the window frame at each anchor point. After all, I know what is mine. In this case, the subsequent installation of the slope is facilitated. There is practically no gap between the slope and the window sill. And the slope does not need to be cut at an angle (extra work). And the horizontal level of the window sill does not need to be checked. It will be the same as the window level.
Here, let's do small digression. The question arises. How to install a window sill on plastic windows? Strictly in a horizontal level or at an angle of 2 - 3 degrees (with a slight inclination into the room)? Why is it so strongly recommended to do this slope. Whichever site you go to, everywhere the angle of inclination of 2-3 degrees is required and that's it.
So, the slope is needed to drain water into the room, which appears on the windowsill from slanting rain, from condensate when incorrect installation windows, from excessive watering of flowers, from washing glass.
Now let's imagine where will he go water at horizontal installation window sill. First of all, the amount of water on the windowsill under any circumstances is minimal. I personally have not heard of floods on window sills. Secondly, the seam of the junction of the window sill and the window frame is always sealed. Thirdly, in order for the water to quickly leave the windowsill, a much greater slope is needed, and with a slight slope, water will still accumulate on the windowsill.
Yes, the installation of a window sill with a reverse angle is unacceptable, then the possibility of water accumulation is really created. But, again, do not forget about the sealant. In short, the window sill should be flat.
I believe that when, while watering a pot of flowers that is on the windowsill, and accidentally spills water, it should spill on your windowsill evenly in different sides instead of pouring on the floor. Also, I believe that, for example, a writing pen should not roll off the windowsill, as well as any round object. Especially when you consider the fact that some wide window sills used as tables.
Well, in general, this is my opinion about the slope of the window sill. We go further. If a third is required - the middle row, it is done very simply. In the middle of trimming the window sill, linings are selected in height.
Since, in my example, a double-leaf window, I use three supports in each row. Accordingly, we expose them in the same way.
After all the supports are selected, you can take our pre-cut window sill (see above), and insert it under the window frame for fitting. At the same time, once again checking the perpendicularity of the installation with a square. Next, remove the window sill, spray the first row along the frame and all the anchor points with a sprayer. And we begin the stage of foaming.
We apply a strip of foam along the first row of anchor points along the window frame, so that half of the window sill profile is covered with foam.
If there is an average reference row, then it is necessary to foam it not completely, but only the reference points. The second, extreme row foams at the end. Next, insert the window sill so that the right and left marking points coincide with the edges of the window frame.
We measure the value of the protrusions in width. If necessary, we correct these values by slightly pushing or deepening the window sill on each side. We make a control measurement with a square or a level in the plane of inclination. After that, it remains to foam the second support row completely. Tip, if this gap is more than 5 cm, you need to foam in two layers. Pass the first layer 2, 3 cm. Wait until it dries (20 - 30 minutes). Then, foam the second layer to the end. Also, do not forget to foam the gaps in the places where the window sill is cut, and do not forget to put a load weighing from 1 kg to 10 kg, depending on the width of the gap. Since I have a gap of about 2 cm, then such a load is enough, as in the picture (tray with a tool).
And here is what should happen after installing the slopes. Despite the fact that when marking, the protrusions, the so-called ears, were different, now, as you can see in the photo, these protrusions are the same. At the same time, the angles of dawn of the slopes are the same.
This is the classic window sill installation that professionals do. But such an installation can be done by anyone with their own hands.
VIP PVC window sill installation
Most main principle, VIP installation of a PVC window sill, lies in the fact that the size of the gap between the base of the platform and the window sill should be 10 - 20 mm. Accordingly, if in the classical setting, this distance is not filled with anything. That is, voids remain, because the installers have neither the time nor the money that the client does not want to part with. This is a VIP installation, which means filling this space with cement mortar.
One more digression or advice. Very often, this filling method is used for large-scale repairs. But, builders - finishers, understanding little in the window business, pour the screed under the window sill into a tight frame or window sill profile. And it also happens that the foam is picked out right under the window sill profile. So, you can't do that. The screed should not reach the window block by about 5 cm. There should be foam.
Further, why don't window installers make such a screed? That's right, you have to wait until it dries. And for the money that they work, waiting is not profitable. In addition, you need to buy a solution. Some masters install the window sill directly on the screed. So faster.
But, if we talk about highest level installation - VIP, then, as I said above, you need to fill in the screed with a gap of 10 - 20 mm, wait until it rises. Then, foam the pad evenly with a snake. Foam layer about 30 mm. Gently place the window sill on this layer without shifting. Align with a level or square and press down with a light weight. The supports with this method of installation are, of course, plastic. And they are exhibited only on the second extreme row. In all other places, the window sill will have sufficient rigidity. This is achieved due to a small gap, which is filled with mounting foam in the form of a snake.
After the foam has completely dried, its remains under the window sill are cut off and the seam under the window sill is sealed. This operation is done both on the VIP installation and on the classic PVC window sill installation.
Note! Installation plastic threshold on the balcony has its own technology. The classic setting for the threshold is not suitable. Read about it
I hope that the reader of my blog will understand not only the principle of DIY installation, but also the principle of approach from a professional point of view. Payment for the services of a PVC window installer must correspond to his work done !!! And, of course, my video.
The role of the window sill cannot be overestimated. After all, it is not only decorative element windows and rooms. The window sill is involved in thermal insulation, preventing the penetration of cold air from the street. Therefore, the installation of this window element is a process that requires accuracy and strict observance rules. This article is devoted to the installation of window sills.
The materials from which window sills are made today can be different. The type of window sill determines the method of its installation.
Wood, such as oak, cherry, pine, has long been the most common material from which window sills were made. Wooden window sills do not lose their connoisseurs to this day. The wood is pre-dried and treated with antiseptic solutions and varnish.
The main advantage of a wooden window sill board is its natural origin and noble appearance. But such material is expensive, and solid wood products are subject to deformation. To save the window sill, you need to protect it from exposure to abrasives, water and aggressive chemicals, as well as periodically renew the coating.
Glued laminated timber boards are less expensive and more resistant to external influences if they are made in compliance with the technology.
Chipboard and MDF
As a cheaper alternative to wood, many firms produce window boards made of chipboard or fiberboard. Products are covered with a special film on top. MDF is more durable and moisture resistant than chipboard. If the integrity of the film is violated, water that has fallen on the chipboard can lead to swelling and significant deformation. MDF is more expensive but more stable.
Window sills made of wood shavings or fibers are very easy to clean. The main thing is not to use abrasives.
stone products
Connoisseurs natural materials often prefer stone window sills. Most often it is granite or marble. Stone products are beautiful, each window sill has a unique pattern. But this pleasure is not cheap.
In addition, on polished surfaces natural stone easy to leave a scratch. Stone window sills easily absorb dirt, such as coffee, wine or tea stains. Yes, they have poor insulation. Due to the high cost and heavy weight, it is better to invite professionals to install a stone window sill.
An alternative to a natural stone window sill is a board made of artificial stone acrylic based. Such products are not inferior in strength, heat resistance and beauty, but at the same time they are cheaper and do not scratch.
PVC products in construction are becoming more and more popular every year. This also applies to plastic window sills, which have a whole list of advantages.
The PVC window sill also has disadvantages:
- non-natural origin of the material;
- the laminating film, which performs a decorative role, can peel off and be easily scratched;
- high temperatures, such as a hot pot, can cause the window sill to warp.
However, plastic window sills are most often used for installation on their own.
How to install a window sill
All window sills are mounted on general principle. Since plastic window sill boards are more often preferred to be used for do-it-yourself installation, we will describe in detail step by step instructions specifically for PVC window sills, noting at the end the features of mounting structures made of other materials.
Before buying materials, it is necessary to correctly measure the place where the window sill will stand. The length of the window sill is determined as follows:
To determine the width of the window sill, you need to measure the width of the wall to the window. 1.5 - 2 cm are added to the result obtained to deepen the board into the window groove. This width is sufficient if you plan to install flush with the wall, which is feasible for flat walls.
Note! When the walls are uneven, it is recommended to measure them on both sides of the window. This will allow you to adjust the window sill and install it evenly.
A protrusion can be provided, the size of which should not exceed 8 cm, so as not to interfere with the convection of air from the battery. After all, this will not only violate uniform distribution heat in the room, but also in cold weather will damage the window as a result of the formation of frost.
In accordance with the measurements obtained, the window sill is adjusted to the desired length and width. Now you can start installation.
Window sill installation
Step 1. Try on the future window sill at the installation site. Trim the board if necessary.
Note! Cutting plastic and stone is recommended with a grinder, a jigsaw is more suitable for wood, MDF and chipboard.
Step 2. Make grooves in the walls with a puncher if necessary. The edges of the window sill will go into these recesses.
Step 3 Clean the installation surface of dust and debris.
Step 4
Step 5 Wedges of wood are laid under the windowsill, starting from the extreme ones and ending with the central ones. The underlays should not protrude beyond the wall and the inner edge of the window sill. The maximum distance between wedges should be 40 cm.
Step 6 Align the window sill with a spirit level. If there are deviations from the horizon, then they rule with the help of additional wedges.
Note! The board should have a slope from the window to the inner edge of about 0.2 cm. This measure will prevent the accumulation of liquid near the window: the water will simply drain.
Step 7 A load is placed on the windowsill. The total load should be 10-20 kg.
Step 8. After additionally checking the horizontal position of the window sill, proceed to fix it. For this, mounting foam is used. It is better to take professional foam and a special spray gun. Additional fixation to the window profile is carried out from the outside using self-tapping screws.
Note! When the foam gets where it should not be, it is removed immediately with a cloth. If it has already hardened, then you can wipe the foam with the help of special solvents.
Step 9. After 24 hours, remove the load and cut off the excess foam.
Now you can install plugs from the ends, and remove the protective film.
If a decision is made to install a wooden window sill, then with inside boards, it is necessary to attach felt that has undergone antiseptic treatment with the help of a shred. ends stone window sills before installation, they also protect with a felt layer. The rest of the installation takes place according to the same principle as for plastic products.
Thus, the installation of a window sill is not difficult, especially when it comes to a plastic board. The main thing is to observe accuracy in alignment during work and not to overdo it with mounting foam.
Video - Installation of a window sill
