Ventilation grilles for window sills: installation rules, characteristics and features of use

Purpose of the grille

A convection grille in the window sill helps prevent condensation (which, in turn, leads to the formation of fungus). This happens due to impaired air circulation in the room and due to increased humidity levels.

The installed grille relieves a person of this problem: the air heated by the radiator freely flows through it up to the window, and when cooled at the opening, it falls down.

Location of the convection grille in the window sill

Now let's take a closer look at why it is important to install grilles and what causes condensation on the windows.

According to SNiP, central heating radiators should be located under the windowsill. Their task is not only to warm up the room, but also to heat the window opening - in order to avoid the appearance of condensation. Therefore, the radiator always protrudes slightly relative to the window sill - so that warm air from it can rise up to the window.

However, now the methods that were relevant in the past are often violated:

1. During repairs, window sill boards of greater depth are installed, completely covering the radiator.
2. Sealed plastic windows are installed.

Old wooden frames, which were installed in houses built in the second half of the last century, had gaps and cracks. Through them, air freely entered the rooms and was removed through ventilation shafts - that is, there was natural circulation.

Several ventilation grilles in the window sill above the radiator

Before the “2000s” (when people began to massively replace old, cracked wooden windows with new PVC structures), there were no such problems with condensation. And the rooms were not so stuffy - again, due to the flow of fresh air through the cracks.

Now people often forget that they need to worry not only about the beauty and tightness of the window, but also about normal ventilation. There are two ways to solve the problem:

1. Install a supply ventilation valve in the window.
2. Install the ventilation grille in the window sill.

Ideally, these methods should be combined: if there is a grille in the window sill, this will not solve the problem of stuffiness in the room.

Types and characteristics of products

Regardless of which window sill the grille is chosen for (plastic, wood, stone), it can be made from the following materials:

1. Aluminum.
2. Steel.
3. Tree.
4. Plastic.

External view of the ventilation grille for the window sill

The shape of the bars is rectangular (like the window sill). The most common frame sizes (in millimeters) are:

1. 80 x 800.
2. 100 x 800.
3. 100 x 600.
4. 80 x 480.
5. 100 x 500.
6. 80 x 500.

Based on the control method, products can be divided into 2 categories:

1. Non-adjustable – having fixed slats.
2. Adjustable - having slats that can be tilted, thereby letting more or less air through and directing it.

Appearance of ventilation grilles of different models

Products can also be divided according to their location relative to the window sill:

1. Flush with the surface.
2. Protrude relative to the surface.

As for the shape of the holes, most often they are made in the form of slits. Much less common are window sill grilles with round perforations, or any other shape, even some kind of figured decorative one, with ornaments or patterns.

How and what to choose?

The main rule when choosing a ventilation grille for a window sill is to focus on its length and the length of the battery.

The best option: choose a grille that is approximately the same length as the radiator. This can be either 1 long lattice or several shorter ones. A product that is not long enough and located on one side of the board simply will not protect against condensation in the other part of the window.

With this rule, one more thing should be followed: pay attention to the open cross-section of the grille (for reference: this is the area of ​​the holes through which air can pass). For most convection models, this characteristic ranges from 0.42 to 0.6 - which will be quite enough to solve problems with condensation on windows.

Window sill with bars

By the way, for those who plan to put something on the windowsill, it is not recommended to choose grill models with holes that are too large. In this case, small things may fall through them, and debris will accumulate under the batteries.

If the window sill board is not used in any way, you can choose ventilation grilles with a large open cross-section (large size of the notches) - up to 0.9. This way, more air will flow through the holes, which means there will be less chance of condensation forming.

About the grating material

As for the material: the most expensive option is steel. However, its use is not mandatory - plastic, aluminum, and wooden gratings will do the job equally well. They all have their own characteristics:

• plastic is the cheapest, but in white it fades in the sun and changes shade;
• wood is a less common option, which costs more than plastic and aluminum, and is more demanding to maintain;
• aluminum is the best option: not susceptible to UV radiation, and not too expensive.

Hole in the countertop for the ventilation grille

You should also pay attention to the location of the grille relative to the surface: ideally, it should be flush with the window sill. Protruding elements, firstly, catch the eye, and secondly, they do not allow the window sill board to be fully used (for example, as a “shelf” for flowers).

Approximate price minimum for some grilles:

• aluminum, non-adjustable, 80 x 800 mm: from 1100-1200 rubles;
• aluminum, adjustable, 80 x 800: from 1200;
• aluminum, non-adjustable, 100 x 600: from 1100-1200;
• aluminum, non-adjustable, 100 x 800: from 1200-1300;
• plastic, unregulated, 80 x 800: from 800-1000;
• plastic, unregulated, 100 x 500: from 700-800;
• wood, unregulated, 90 x 500: from 2500.

And some companies have now even begun to produce window sills with already installed grilles. This option is not always suitable - since their location may not correspond to the location of the radiator.

Ventilation grilles for batteries on window sills of plastic windows

After installing plastic windows, a problem with condensation almost always arises. To solve this, you need to use ventilation grilles for window sills. This is a simple and convenient option designed to evenly distribute the warm air emanating from the radiator in the room.

After windows are installed, they are almost always equipped with window sills. To bring even more comfort and convenience, ventilation grilles for window sills were invented. These devices are responsible for circulating heated air, which is supplied by heating radiators to the window area.

A big problem is ventilation in the windowsill of plastic windows. After their installation, it is difficult to achieve natural air circulation. Typically, the heat coming from the radiators rises upward and then, cooling down, falls down the room. Convection grilles in the window sill perform the function of natural ventilation. With them, warm air will rise to the windows through the sill, which is much better.

Installing gratings will allow the window sills to do their job more efficiently. Thanks to their heat-shielding properties, they will retain the flow of warm air emanating from heating devices and create a warm air cushion in the window area. After this, condensation will not form.

Experts recommend installing grilles if there are wide window sills installed in the room. Their dimensions completely cover the heating radiators under the windows. After this, hot air does not enter the room correctly and is distributed there. For this reason, condensation forms and the room does not warm up well. A small decorative product will solve two problems at once, without violating the design intent.

Modern ventilation grilles differ in the way they are installed, controlled and in their location. They are made in different sizes, shapes, using different materials during the production process. It could be:

The shapes of the gratings come in different shapes, but the most common are rectangular . They come in the following sizes:

• 80x800 mm;
• 100x800 mm;
• 100x600 mm;
• 80x480 mm;
• 100x500 mm;
• 80x500 mm.

The gratings differ in the way they are adjusted and come in two types: unregulated and adjustable. The first type has fixed slats, while the second is equipped with slats that can be controlled. They tilt and can allow more or less air to pass through, directing air flow.

Products are divided according to the method of location relative to the window sill, for example, flush with the surface. They can also protrude relative to its surface. Convection grilles for window sills have different shapes of holes. Most often they are made in the form of slits. However, sometimes they are made with round perforations. If desired by the customer, they can be made in a decorative form or with an ornament.

Modern convection grilles in the window sill for radiators can be called an interior element that can decorate it. Almost all of them are aesthetically attractive models, presented in different colors and types of design. They are classified according to certain characteristics:

• design feature;
• type of material;
• color;
• dimensions;
• form;
• installation method.

Nowadays such gratings are made from many types of materials. They all have their own characteristics. For example, products made from natural wood are very high maintenance and more expensive than plastic or aluminum. This is an environmentally friendly option that looks very aesthetically pleasing. Due to their difficult care, they are not in great demand.

The best option is aluminum models that are not afraid of UV and are affordable. Plastic window sill bars are considered the most inexpensive. However, in white they quickly lose their attractiveness and freshness when exposed to the sun and then break. The most durable and high-quality products can be called steel products. They are heavy and have a high price.

It is not recommended to place small objects on models with large holes to prevent them from falling through. If they are not used in any way, then you can choose products with larger perforations. Through this cross-section, more hot air will enter and a minimum of condensation will accumulate.

The ventilation grille should be closer to the window. If the window sill is very wide, then experts advise placing it directly above the battery. To determine the dimensions of the product, you need to measure the radiator.

Color is of great importance, since a harmonious combination of products will fit perfectly into the interior. Some buyers like to have contrast, so they prefer an unusual combination of colors.

The black color of ventilation grilles is always suitable for window sills made of dark plastic or stone. They are also good for wooden structures. However, white products are considered the most popular, so they are ordered and purchased most often. A good option is silver and gray ventilation models. These shades are perfect for light and cool tones.

Advantages of convection grilles for window sills

The presence of ventilation grilles for radiators of the heating system, installed in the window sill, has a number of undeniable advantages that ensure an optimal microclimate in the room where they are installed. In addition, the advantages of their presence include the following indicators:

• natural ventilation in the room improves;
• the issue of preventing the formation of condensation in the window opening is resolved.

The advantages of such products can also be considered:

• versatility of the installation method and ease of installation work;
• variety of shapes, designs and colors;
• ease of use and maintenance;
• affordable price for models made of plastic.

Convection grilles can be installed in different ways, depending on the materials of the enclosing structures, the design style of the room and the personal preferences of the user

Ventilation grilles in the window sill: types and purpose

Interruption of the warm air flow from radiators can be corrected by installing ventilation grilles in the window sill. Thanks to them, the cold air from the window goes down, and the heated air from the radiator, which is not interfered with, rises up through the slots.

Most likely, no one wonders why builders install heating radiators under the window and not in other places in the room. The regulatory documents (SNiP 41-01-2003. Heating, ventilation, air conditioning) clearly stipulate the installation locations of heating devices, their location relative to the window opening, window sill board. When mixing, the air flows must exchange temperature so that the cold air heats up and there is no feeling of a draft creeping across the floor. Also, to prevent condensation from forming on the glass.

To prevent too wide window sills from impeding proper circulation, a convection grille is built into their design. It is selected, first of all, depending on the material of the window sill itself. They are made from aluminum, plastic, wood and steel. The shape is rectangular. The market offers products of various overall sizes (8x48; 8x50; 8x80; 10x50; 10x60; 10x80 cm).

In addition, they are divided into the following types:

1. According to the design of the blinds (adjustable, fixed).
2. According to the installation method (flush with the surface, protruding).
3. According to the shape of the holes (slotted, round, with ornaments).

Important! Installing a grille in a window sill for radiators involves choosing the required size. It should be approximately the same size as the radiator. Too short - it will not be able to prevent condensation from falling in that part of the window glass where cold masses cannot warm up.

How to choose a window sill grille

The choice of modern convection grilles is quite wide: a window sill grill can look aesthetically attractive and have many types of designs and colors. This is a modern piece of furniture that can significantly decorate it. Products can be classified according to the following characteristics:

• material;
• color;
• design features;
• form;
• size;
• installation features.

Currently, gratings of various materials are produced

• wood is the least common option, which costs more than plastic and aluminum, and is more demanding to maintain
• aluminum is the best option: not susceptible to UV radiation, and not too expensive.
• steel
• plastic is the cheapest, but in white it fades in the sun and changes color, and breaks quickly

Steel gratings are considered to be the most durable products, but they also have the heaviest weight and, of course, high cost. Wooden grilles will look a little cheaper, but more aesthetically pleasing and environmentally friendly. They will not spoil the interior of the room with their appearance, but will require special care.

Some of the most affordable ventilation grilles in terms of price will be plastic and aluminum products. But over time, plastic can warp and turn yellow, and aluminum materials withstand sunlight and humidity better, but their cost is slightly higher than that of plastic products.

Therefore, we advise you to opt for aluminum grilles.

By the way, for those who plan to put something on the windowsill, it is not recommended to choose grill models with holes that are too large. In this case, small things may fall through them, and debris will accumulate under the batteries.

If the window sill board is not used in any way, you can choose ventilation grilles with a large open cross-section (large size of the notches) - up to 0.9. This way, more air will flow through the holes, which means there will be less chance of condensation forming.

The closer the ventilation grille is located to the windows, the better. With wide window sills, the grille should be placed directly above the radiators. To determine what the parameters should be, you need to know the dimensions of the battery. If in the upper section the battery has 800 by 100 mm, then the openings for the grill itself must be made the same (no less). Therefore, the standard sizes of gratings produced by the manufacturer are: 800x80, 600x100, 480x80 and 800x80.

In terms of their throughput, convection grilles for window sills have different effective cross-sectional sizes (the sum of the areas of the holes in the grille for air passage is called the open cross-section of the grille). For convection grilles it ranges from 0.42 to 0.60 l/s, and this is quite enough for heated rooms.

There is also a type of slatted grille - they can be adjusted and slightly rotated towards the window. This helps to further protect the installed windows from condensation and freezing.

Installation methods

Metal grilles for radiators built into the floor
First of all, you need to decide on the type of grilles and purchase elements of the desired model. The list of tools required for installation includes a screwdriver or drill, a grinder, a jigsaw, a construction pencil or marker, mounting adhesive or silicone sealant and a tape measure.

The grille in the window sill for home batteries can be installed externally or internally. They can be installed independently in window sills made of plastic or wood; for installation in concrete bases, additional tools will be required.

Outer

External models must be protected from environmental influences; aluminum grilles are an ideal option. In addition to their main task, they also prevent the accumulation of dust and dirt and the penetration of insects. External grilles can be adjustable or non-adjustable; models of the first type are supplemented with built-in blinds.

Interior

Internal grilles should be in harmony with the overall style of the room.
Internal grilles should have an aesthetically pleasing design and compact dimensions so as not to reduce the area of ​​the living space, for example, the kitchen. They can be made from any material that will harmonize well with the overall style of the interior and be of high quality.

Since the grille must ensure an accelerated rise of warm air from heating appliances to the windows through the window sills, the place for it is chosen as close to the windows as possible. In wide window sills, the installation of grilles is carried out strictly above the radiators, and the openings of the grilles must coincide with the dimensions of the upper section of the radiators. The cross sections of the gratings can be different in shape, but the total sum of their areas should be from 0.42 to 0.60 l/s. These indicators are sufficient for optimal ventilation.

Basic installation requirements

The appearance of the product will be determined not only by the material, shape, but also by the installation location.
Vent grilles can be installed outside and inside the room. The latter option should be harmoniously combined with the window sill, and also fulfill its main function. To do this, the structures are mounted closer to the end of the window sill or next to the window. The placement of the grille will depend on the location of the heating radiator. If the battery is hidden deep in the window sill, then the grille should be located close to the window. When the radiator protrudes, then ventilation is done above it. Products must fulfill their main function - to prevent the accumulation of condensation in the window area and regulate the flow of warm air.

Installing ventilation at the radiator location is a basic installation requirement. The length and width of the structure should be approximately the same dimensions as the radiators or slightly larger. Small sizes will lead to the accumulation of hot air and the appearance of condensation.

How to embed a grille into a window sill

Installing a ventilation grille in a window sill is a job that every tenant can do on their own, you just need to have experience working with plumbing and hand power tools, as well as have free time and the desire to work with your own hands.

What tools will you need?

To perform the work you will need tools such as:

• tape measure and construction square;
• pencil or marker;
• electric jigsaw or angle grinder (“grinder”);
• electric drill or screwdriver;
• a set of drills of various diameters.

In addition, you may need glue for plastic and self-tapping screws designed for attaching certain types of ventilation grilles, depending on their design and installation method.

Aluminum model GTV series 60x480 mm

Step-by-step process of installation work

The algorithm for installing a ventilation grille in a window sill is as follows:

IllustrationDescription of action

As already written above, installing a ventilation grill is quite simple, as evidenced by this work algorithm.

Types and sizes of ventilation grilles for window sills

The problem of condensation on a plastic window is known to many. One of the most effective and affordable ways to solve this problem is to install a ventilation grille. Today we will talk about what ventilation grilles for window sills are and what they are like.

What is it and why are ventilation grilles for window sills needed?

Operating principle and device

Ventilation grilles are usually mounted on plastic window sills, but if necessary they can be mounted on wooden or stone ones.

Reviews: pros and cons

According to reviews from owners of ventilation grilles, these types of devices are quite effective in providing natural ventilation. At the same time, air humidity is significantly reduced, which means there is no condensation.

Related article: Window sill height from floor standard

Types and technical characteristics

Ventilation grilles can be classified according to many parameters: material, size, shape, control method and location.

Regardless of which window sill the ventilation grille will be installed in, it can be made from:

The shape of the gratings can be anything, but the most common option is to use rectangular products. The most popular grating sizes are:

• 80 x 480 mm;
• 80 x 500 mm;
• 80 x 800 mm;
• 100 x 800 mm;
• 100 x 600 mm;
• 100 x 500 mm.

According to the control method, the gratings can be divided into:

• non-adjustable – equipped with fixed slats;
• adjustable - equipped with slats that can be tilted at the required angle, allowing less or more air to pass through and setting its direction.

Depending on the method of placement relative to the window sill, the products can be installed either flush with the surface or protruding above it.

In addition, the shapes of the holes may also vary. Most often, gratings are made with openings in the form of slits, but sometimes there are products with round, and sometimes even shaped, decorative notches.

60x480 mm

Among the variety of models presented, white grilles measuring 60 by 480 millimeters are especially popular. This demand is due to the dimensions, shape and color that are standard for most window sills. That is why the grille is universal in its own way. In addition, financial affordability makes the product even more attractive - the average cost of such a grill is only 400 rubles.

Narrow

For narrow window sills, standard-sized grilles are not suitable, which is why there are a large number of products of non-standard sizes on the modern market. As practice shows, it is not difficult to find gratings even with a width of 60 and 80 millimeters.

In addition, this kind of product can be used on standard window sills, which will allow you to partially save its usable space and use the window sill in accordance with your own wishes.

Round

Round ventilation grilles are less in demand than standard rectangular ones. However, due to their compact size, such products allow you to keep most of the window sill intact.

Manufacturers and popular models

Which manufacturer and type is better to choose?

It is difficult to single out any specific manufacturer of ventilation grilles - many companies produce them, and similar products differ little from each other.

Important: A grille located on one side of the window sill that is not long enough will not prevent condensation in the other part of the window.

In addition, it is necessary to pay attention to the live cross-section of the grille (the total area of ​​the holes through which air will pass). For the vast majority of convection models, this indicator ranges from 0.42-0.6, which is quite enough to solve the problem of condensation formation.

How to embed a ventilation grill into a window sill: installation rules

As practice shows, it is recommended to install a ventilation grill yourself only if the window sill is made of plastic or wood. To install the product in a concrete “board” you will need much more experience and specific tools. Otherwise, ventilation grilles are installed in concrete window sills according to the same principle.

Attention: It is not necessary to remove the window sill to install the grille. The main thing is to position the product correctly: the grille slats should be directed towards the window.

To install the grille in the window sill you will need:

• marking tool (pencil, marker);
• grinder or jigsaw;
• glue for plastic (optional);
• any massive object that can be used as a press (if the ventilation grille is glued);
• drill (the diameter of the drill must exceed the width of the jigsaw blade).

OLYMPUS DIGITAL CAMERA

The algorithm of actions in this case will look like this:

• marking the place where the grille will be placed;
• drilling holes at the corners of the markings;
• cutting out a mounting hole for the grille;
• “trying on” the product;
• coating the edges of the hole with glue (optional);
• installing the product in place;
• removing excess glue;
• installing the press on the grate.

Attention: Metal products (as well as some wood and plastic) are attached with bolts, not glue.

Using glue can hardly be called an ideal solution, since the structure will be solid, and in case of repair, the grille will have to be torn off from the surface of the window sill. Therefore, if you managed to achieve perfectly smooth edges of the groove, it is better not to use glue - the grille will sit tightly in it without moving, and if necessary, it can simply be pulled out.

The cost of ventilation grilles is influenced by many parameters. Thus, the material from which the product is made is a fundamental factor: steel products are the most expensive, but all the tasks of a grating are performed equally well by plastic, aluminum or wooden gratings.

As practice shows, the average cost of ventilation grilles, depending on size and material, is as follows:

• aluminum, 80 x 800 mm: 1,100 – 1,200 rubles;
• aluminum, 100 x 600 mm: 1,100 – 1,200 rubles;
• aluminum, 100 x 800 mm: from 1,200 – 1,300 rubles;
• plastic, 80 x 800 mm: from 800-1,000 rubles;
• plastic, 100 x 500 mm: 700-800 rubles;
• wood, 90 x 500 mm: 2,500 rubles.

Where to buy a ventilation grille for a window sill?

In Moscow

In Moscow, you can purchase ventilation grilles for window sills from companies such as:

• “Brass”: address: Moscow, Dmitrovskoe highway, building 100, office 3286;
• website: https://inookno.ru;
• telephone.

In St. Petersburg

In St. Petersburg, the following organizations sell ventilation grilles for window sills:

• "DECORIOS": address: St. Petersburg, Chapygina street, building 6P, office 16-18;
• website: https://decorios.ru/;
• telephone.

Thus, installing ventilation grilles in the window sill can forever eliminate the annoying problem of condensation formation at a symbolic financial and time cost. The main thing is to choose the right size and shape of the product, in which case the use of the grid will be as effective as possible.

Related article: How to dismantle a plastic window sill

Installation Tips

To create high-quality ventilation, grilles can be installed indoors and outdoors. When installing indoors, you need to pay attention to the location of the radiator. If it is located deep under the window sill, then the grille is mounted as close to the window as possible. And if the radiator protrudes beyond the window sill, then the grille should be installed above the radiator.

It is worth remembering that the wrong location for installing ventilation grilles will lead to them not performing their functions correctly.

It is advisable to involve specialists for design and installation. If the installation is carried out incorrectly, the window sill can easily be damaged, which will entail the need to replace it.

For window sills made of plastic or wood, installation of ventilation grilles is quite simple. You can do it yourself. If the window sills are made of concrete, then it is better to use the services of specialists, since the installation process will require additional tools and experience working with this material.

For installation you will need a pencil or marker (to make markings), a grinder, a drill, as well as some heavy object to press down the grille. For plastic surfaces, glue is sometimes used.

When installing ventilation structures, there is no need to remove window sills. The procedure itself is quite simple and does not require special knowledge or skills. First, use a pencil to mark the installation site. Then the corresponding holes are cut out in the window sill using a grinder. Instead of a grinder, you can use a jigsaw.

The next step is to finish the surfaces of the cut holes. To do this, sandpaper is needed to clean the surfaces from irregularities and sharp protrusions. Next, the grate is inserted into the hole.

If the structure is adjustable, then the slats should be positioned so that they are directed towards the window. In this way, ventilation grilles are installed for plastic and wooden window sills.

To fix the grille, you can use silicone. Also, the structure is often fixed using glue. To do this, before installing the grille, the edges of the holes should be coated with glue. After placing the grille in the hole, you need to remove excess glue, and then press the product with a heavy object for a while (until the glue dries).

It is worth noting that fixation with glue is not the best option. The fact is that when the need arises to remove the structure, it will have to be torn off from the surface. Therefore, it is better to ensure a tight fit of the structure using accurate measurements of the holes. If the edges of the hole are perfectly adjusted to the dimensions of the grille, then it will be tightly fixed. Moreover, if necessary, it can be easily pulled out.

Sometimes there are structures (mostly metal) that are fastened with bolts. This is another convenient fixation option.

You can also find window sills with already built-in grilles on sale. However, this is not always a good choice, since the dimensions of the grilles may not match the dimensions of the radiator.

Installation stages and rules

You can install a ventilation grill with your own hands in a plastic or wooden window sill; installation in a concrete “board” will require much more experience and other tools. Otherwise, the grille is installed in a concrete window sill in exactly the same way.

Let's consider the nuances and stages of work for a plastic or wooden board and the same lattice. It is not necessary to remove the window sill to carry out the work . The direction of the slats (if the holes are slot-shaped and the slats are installed at an angle) should be towards the window.

A hole cut in the window sill for the ventilation grille

Tools you will need:

1. Marking tool (marker, pencil).
2. Jigsaw or grinder.
3. Glue for plastic (optional).
4. Any heavy object that can be used as a press (needed if the lattice will stick).
5. Drill.

The diameter of the drill bit must be larger than the width of the jigsaw blade (so that it can fit into the drilled hole).

Stages of work (video)

Stages of work

The process itself looks like this:

1. Mark the place where the grille will be located.
2. Holes are drilled in the corners.
3. A jigsaw blade is inserted into the hole and a mounting hole is cut out for the grill itself.
4. The product is installed in the hole for “trying on”.
5. The edges of the hole are coated with glue.
6. The grille is installed in place and pressed.
7. The glue squeezed out along the edges is removed.
8. Any heavy object is installed on top of the grate as a press.

Hole in the window sill for installing a grill

Metal products (as well as some plastic and wooden ones) are attached not with glue, but with bolts.

Using glue is not an ideal solution - in this case the structure will be solid. If necessary (for example, if the plastic lamella breaks), the grille will have to be torn off from the surface.

You don’t have to use glue if the groove is perfectly even: so that the lattice “sits” tightly in it without moving. In this case, if necessary, it can be pulled out - for replacement, repair or cleaning.

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In what cases is it necessary to install a grill on the windowsill?

We strongly recommend installing a grille if you plan to install very wide window sills that will completely block the radiators located under the windows. In this case, you will experience incorrect air distribution, which will lead to condensation on the windows and the room will not warm up well. The problem can be solved without violating the design intent and without changing the window sills to smaller models. It is enough to install a decorative grille in existing products.

The principle of choosing window sill grilles

When choosing a grille for a window sill, you need to pay attention to the size of the holes. For convection ones, the sum of their areas should be at least 0.42-0.6 m2 of the active cross-section of the grid. This size is quite enough to prevent condensation from collecting on the windows. But if the window sill will not be used as a stand for flowers, decorations, etc., then you can use grilles with a total hole area of ​​up to 1 m2. This design will allow air to pass through well, so conditions for condensation will not be created.

Wooden gratings are very demanding to maintain. Wood has the ability to accumulate moisture and expand, then dry out under the influence of elevated temperatures. In addition, this is an expensive material, so it is used extremely rarely.

Plastic grilles are convenient, cheap, and easy to install. But they quickly lose their aesthetic appearance, fading in the sun, and losing their original color. The most common are aluminum. They do not fade in the sun, can be washed without worrying about deformation, and are not expensive.

Important! Before installing a ventilation grille on the window sill, it is worth considering the option when the ventilation grille is initially part of the window sill. But first they make measurements to see if it is suitable for radiators. Offset or small holes will not solve the problem of “crying” windows and the product will become a useless purchase.