Ventilation grilles for doors. Ventilation grille in the door as a way to ventilate the bathroom Door to the bathroom with ventilation

A bathroom is a place where moist air is almost constantly present. And it's completely unsafe. Finding no way out, moisture settles on the walls, ceiling, interior items and causes the formation of mold and fungus that are dangerous to humans. Properly installed ventilation helps to combat excess moisture. There is a variety of ventilation equipment. Do not think that the system must necessarily be complex and multicomponent. In some cases, even simple ventilation in the bathroom door will help improve the situation. Consider the simplest ways to remove moist air from the bathroom.

The organization of forced exhaust ventilation is justified only if the bathroom has an area of more than 15 square meters. m. A necessary element of the system is a duct centrifugal fan, which is installed in the ventilation shaft. Such devices operate almost silently and are easy to install. Even a home master can carry it out. Preliminarily, of course, carefully read the instructions.

The duct fan is installed inside the ventilation shaft

Before installation, you need to make sure that the ventilation duct is clean and functional. The fan must be fixed at a certain depth of the channel in a strictly vertical position. After this is done, you can start connecting the device to the power supply system. It must be remembered that this operation is carried out only after the apartment is de-energized. The power cable is laid to the fan. In the most convenient place, a switch is mounted. Then a check is carried out, if everything is in order - the device is ready for operation.

Installation of a surface fan

In small bathrooms, it is much easier to remove humid air. To do this, it is enough to install a conventional overhead fan. The main thing is to correctly determine the required power of the device, otherwise all efforts may be useless. For approximate calculations, experts recommend using the following formula: the area of \u200b\u200bthe room must be multiplied by 6 if less than 3 people regularly use the room, or by 8 if there are more than 3 residents in the house. The resulting value will be the required power of the equipment.

Installation of the device is carried out with the electricity turned off. Work begins with fixing the base box. Then, using a two-core cable with a diameter of about 0.2 mm, contact terminals are connected to the network. After that, you can install the body of the device. Usually it is equipped with special latches, so additional fasteners are not required. Upon completion of the work, the operability of the installed equipment is checked. Overhead fans have different designs, but they are installed according to the described scheme.

Surface-mounted fan - a practical solution for small bathrooms

Arrangement of ventilation holes in the door

A door with ventilation holes can become part of the bathroom ventilation system or act as the only device for removing moist air. Most often, holes are made in the lower part of the door leaf. For their decoration, special rings are used. Elements can be made of wood, metal or plastic. The choice of material depends on the appearance of the door. Parts are installed as follows:

Marking is in progress. The ring is applied to the place where it will be installed and outlined with a pencil or marker. It should be borne in mind that usually three ventilation rings are installed on one door leaf.
Holes are being made. With the help of a drill, three through slots are drilled on the plane.
Holes are being processed. Their inside should be smooth, without even small irregularities. Grinding of the walls is carried out with sandpaper. At the end of the work, varnish is applied to the leveled surface. It will help the door avoid deformation and give the details an aesthetic appearance.

Bathroom doors with ventilation

Ventilation rings are installed. To facilitate the process, a screwdriver is usually used.

Note: the rings installed in the door have several varieties. Along with the simplest parts on sale, you can find elements with a protective mesh from insects and noise-absorbing ones, covered with a special material that does not transmit sound.

One of the options for the design of the ventilation grill in the door

Ventilation openings can be made not only in the form of rings, but also in the form of a special grille. The design has some advantages over rings: the design of such devices is more interesting, and, in addition, the air passes through the grill along a curved path, therefore, drafts in the room can be avoided. The installation of the grate is carried out in the same way as the installation of the rings. A small nuance: upon completion of the installation, the structure must be in a strictly vertical position and not stagger.

Ventilation in the bathroom is not a luxury, but a necessity. The system can be set up in a variety of ways. The simplest and most accessible of them are described above. Provided that the instructions are followed and properly installed, the humid air extraction system will work smoothly. If there is no experience of such work or there is no desire to engage in them, the specialists of construction companies will qualitatively perform the installation of the necessary equipment.

Video: bathroom ventilation

The duct fan is installed inside the ventilation shaft

Installation of a surface fan

Surface-mounted fan - a practical solution for small bathrooms

Arrangement of ventilation holes in the door

Marking is in progress. The ring is applied to the place where it will be installed and outlined with a pencil or marker. It should be borne in mind that usually three ventilation rings are installed on one door leaf.
Holes are being made. With the help of a drill, three through slots are drilled on the plane.
Holes are being processed. Their inside should be smooth, without even small irregularities. Grinding of the walls is carried out with sandpaper. At the end of the work, varnish is applied to the leveled surface. It will help the door avoid deformation and give the details an aesthetic appearance.

Bathroom doors with ventilation

Ventilation rings are installed. To facilitate the process, a screwdriver is usually used.

Note: the rings installed in the door have several varieties. Along with the simplest parts on sale, you can find elements with a protective mesh from insects and noise-absorbing ones, covered with a special material that does not transmit sound.

One of the options for the design of the ventilation grill in the door

Video: bathroom ventilation

Ventilation is one of the ways to maintain an optimal internal microclimate. There are many devices that allow you to improve air movement. All use ventilation grilles installed as guides.

Basic concepts

The movement of indoor air is very often restricted by closed doors. This does not allow even distribution of both temperature and humidity. One solution to this problem is the use of ventilation grilles.

This type of construction for doors belongs to the overflow ventilation devices. They consist of several structural elements:

Lattice. This part is made in the form of a solid frame, between which the strips are located at a certain angle. This allows the air to move freely.
Decorative overlay. The product is a small design that repeats the previous element in shape. Install it on the other side of the door to hide the places where the hole was cut.

You can install overflow grilles in almost any door, but often they are found only in a few rooms:

Kitchen. This is important if the hood is constantly working here. It removes dirty and hot air, and a fresh stream enters the room just through the holes in the door.
Bathroom and toilet. In such places, ventilation systems are used very often. This is especially important for the bathroom, where a large amount of moisture accumulates. And to prevent the formation of mold, surfaces should be thoroughly and constantly dried.
Interior doors. This approach is relatively rare. These structures are used in large offices where it is necessary to create comfortable conditions for workers. Such doors can also be seen in large archives or libraries, where it is necessary to maintain an optimal mode for storing paper.

materials

Door systems for air today can be found in almost any hardware store. They are made from several basic materials:

Plastic. The most common products, as the substance perfectly resists moisture. Plastic does not rot or crack, and its service life is practically unlimited.
Metal. Transfer systems made of this material are quite rare, as the products resist water very poorly. Only stainless steel gratings are the optimal solution.
Wood. It is very difficult to find structures of this type on the market; almost all such models are made to order. Wooden devices are great for interior doors, but it is recommended to install them in bathrooms.

For protection, all types of gratings can be covered with special protective paints.

Dimensions

Door ventilation systems are often installed at the bottom of the canvas. The number of such elements in most cases is no more than two.

The dimensions of the ventilation grilles vary in a relatively wide range:

Width - from 10 to 60 cm;
Height - from 10 to 25 cm.

As for the environment of use, the optimal dimensions for bathroom structures are considered to be 60 cm wide. If you plan to mount lattices in interior doors, then it is better to buy systems with slightly larger parameters.

The thickness of products in most cases is standard and varies from 35 to 40 mm. If the door leaf is non-standard, then this should be taken into account when choosing such structures.

If you need a non-standard size design, then it will have to be ordered individually, which will affect its cost.

Kinds

Overflow ventilation modifications for doors are practically no different from other models. Such lattices are classified only according to the shape of the frame. Depending on this parameter, there are:

Rectangular. A similar type of device is mounted in the door to the kitchen or bathroom. Some models can be supplemented with mosquito nets, which will prevent the migration of flies and other insects.
Round. Systems of this type are technically no different from rectangular counterparts. On the market there are products of small diameter, which allows you to mount up to 4-5 pieces in one door.

Criterias of choice

The installed grille does not always allow to achieve high-quality air flow. When choosing such solutions, one should pay attention not only to the material, but also to the usable cross-sectional area. This characteristic indicates how much air the system can pass. Experts recommend using grilles for one door, in which the “living” area is 30-40 square meters. cm.

For this, a lattice with dimensions of 30 * 25 cm is perfect. It is important to understand that the “live” area is about 40% lower than this parameter calculated along the perimeter of the structure.

Mounting

The process of installing a ventilation grill on a door can be divided into several successive steps:

You should take the exact dimensions from the purchased product. It is important to measure the side that will enter the hole.
On the door choose the place where the products will be located. Do not mount devices too close to the ends of the web, as you can simply damage it. When you have decided, you should mark the location of the gratings. Please note that the hole in the door should be approximately 2 mm larger than the perimeter of the product.
A hole should be cut. To do this, holes are initially drilled in each of the corners with a large drill. Then, using a jigsaw, cut a hole in sequence. If the doors are made of plastic or metal, then a special cutting tool should be used.
The process is completed by fixing the gratings. Initially, they are inserted into the holes and tried on. It expands if necessary. The fixation of the device is carried out using glue or other systems provided by the manufacturer. Many structures can be fastened with small self-tapping screws, so only decorative fasteners are used for such purposes.

Ventilation grilles for doors are a universal solution that allows you to create a comfortable indoor climate and optimal living conditions for each tenant of the apartment.

Also in the video below you can see a brief overview of the adjustable door grille.

The fact that bathroom doors should be moisture resistant is out of the question. But this is the protection of the door itself from high humidity. But it turns out that the door itself closes it inside the room.

Thus provoking fogging of surfaces, fungus on the walls and other troubles. Of course there is an air duct in the bathroom. True, he does not always cope with his task. And the reason may not be blockages of the structure, but the lack of air movement in the room - after all, the door is tightly closed.

Keeping the bathroom door ajar is not convenient. But you can equip it with special ventilation holes for this case. They are usually made at the bottom of the bathroom door. There are several options.

Air vents for bathroom door

You can equip the door to the bathroom with ventilation rings. Lining rings will close the through holes drilled at the bottom of the door - it will be neat. And even beautiful, as there are rings of different designs so that you can pick up under the door. Materials: wood, plastic, metal.

The simplest vent rings, which are installed in the bathroom door, organize ventilation "holes" - nothing more. But you can buy rings with a protective mesh, and even noise-absorbing ones. By the way, ventilation rings of the latter type are often placed in bedrooms: the holes in them are covered with a material that allows air to pass through, but no noise.

Ventilation grilles for the bathroom door

The ventilation grill is also arranged along the bottom of the door to the bathroom. And also a very interesting design. The advantage of good ventilation grilles is that air does not go through them directly - that is, there are no drafts. Although, in any case, it will not blow much.

Bathroom door cut

Well, the most inconspicuous option: undercutting the doors. At the bottom, the door to the bathroom is cut a little so that even when closed, there is a small gap. And the place of the cut is closed with a special end edge.

If your bathroom doors suit you, you can simply retrofit them with ventilation ducts: these items are sold separately. But if you decide to buy a new bathroom door, choose a product with ventilation ducts already installed.

To ensure the movement of air from one room to another, overflow grilles can be used.This is a simple and cheap alternative for those who do not have a gap under the door: in this case, the normal ventilation of the room may be disturbed.

Why exactly a grille is needed, what it can be and how it is mounted - we will understand below.

Purpose

Overflow grilles are mounted in a hole that is made in the interior door leaf (less often - in balcony doors or in partitions). Their purpose is to ensure the movement of air between rooms: to remove the "used" and make room for fresh.

Door manufacturers often produce products that do not provide for a gap at the bottom (between the leaf and the floor). This gap is necessary specifically for ventilation: air passes through it even when the door is tightly closed. If this gap is absent (or there is, but there is also a threshold that covers it), then the air is “locked” in the room, and you will have to open the door for ventilation.

Thus, the door grille allows you to ensure normal ventilation in the room with the door closed, which does not have an undercut (slot). Air entering the room through the window (or through the supply valve or installation) will be able to exit into the corridor and be removed through the ventilation shaft or exhaust.

To summarize: it is important to use regrinding in such premises:

bathroom (bathroom, toilet) - they are usually kept closed, and if moist air stagnates, then mold will form inside;
kitchen - “exhaust” air is removed through the kitchen hood, giving way to fresh air, and therefore it is necessary to provide an unobstructed path for the air flow to the hood;
in any room in which there is no gap under the interior door.

The use of such gratings is relevant not only in residential premises, but also in any other - offices, classrooms, classrooms, regardless of their purpose.

Device and material

To structural productconsists of two frames: external and internal. Internal frame - inserted directly into the door leaf (into the hole in it) on one side. It has lamellas on it.

For transfer modelsthey are in the shape of a corner, V- figurative. This allows air to pass through without problems, but completely blocks the view.

H The outer frame is essentially decorative. It is attached on the other side of the door leaf, covering the edges of the sawn hole.

Another version of the execution is less common: when the product simply consists of two gratings, each of which has its own lamellas. They are mounted on both sides of the door leaf, opposite each other. This option especially relevant if the thickness of the canvas is more than the common 3.5-4 cm.

The material of the gratings is most often plastic: it is both cheap and practical (does not rust, is not afraid of moisture, and is easy to clean). Less commonly, door grilles are made from:

metal: such products are more expensive plastic , it is better not to use them for doors to bathrooms (unless it is stainless steel);

wood: you can hardly find such products in stores, they are usually made to order (they cost even more and require careful maintenance; it is better not to use them for bathrooms).

To protect metal gratings from moisture, powder paint is applied to them. This allows you to put them in the doors of bathrooms, however, if the paintwork is damaged, then the product will either have to be tinted or replaced.

Some models are equipped with a silencer (example -). The thing is useful if you need to muffle the sound (passing into the room or out of the room, it doesn’t matter).

Shape and dimensions

The shape of the door grilles is most often rectangular. Less commonly, it is a square or a circle.

The main characteristic is the size. Most often, the door leaf has the following dimensions:

70 or 80 cm - for interior doors;
60 cm - for doors to the bathroom, utility rooms;
thickness - 35-40 cm.

Proceeding from this, manufacturers make overflow gratings with a smaller width (no more than 60 cm). They can be installed in doors with a thickness of 25 to 50 mm.

The size range is something like this:

width - from 100 to 600 mm;
height - from 100 to 250 mm.

Larger gratings are usually not found in stores; if necessary, they will have to be ordered.

From the minimum to the maximum, the dimensions increase in increments of 50 mm (that is, 100x100, 150x100, 200x100, 200x150, 300x200, 500x250, and so on). For some manufacturers, the pitch may be 25 mm (occurs infrequently).

The most common options are:

350x150;
400x150;

500 x200.

How much air will let through: about the cross-sectional area

Another characteristic of gratings is the cross-sectional area. It depends on how much maximum air can pass through the regrinding.

For comparison: the door gap area is approximately 120 cm² (for a leaf 80 cm wide, with a gap height of 15 mm). With a normally working exhaust ventilation, which creates a normal pressure drop of 10 Pa, about 100-110 "cubes" of air per hour will pass through such a gap. This is more than enough to remove all the “exhaust” air from the room with the door tightly closed (for 1 adult, about 30 “cubes” are needed per hour).

Please note: for ventilation grilles, you need to pay attention to open area(in the characteristics it is indicated as F zh.s.), that is, on the “clean” area of air passage. This indicator is always less by about 30-40% than the total area of the grate - because of the lamellae.

Ideally, the area of the living section of the door grill (or several grilles in total, which are in one door leaf) should be more than 30-40 cm². Grids of approximately 300x250, or 350x200, have such an area. This will be enough to ensure the normal outflow of air from the room in which there is 1 person.

Here is an approximate table of areas (total - Fo, and living section - F zh.s.) for gratings of various sizes:

If the room is not always kept closed, then it is not necessary to pay special attention to calculating the cross-sectional area. The "exhaust" air will be removed from the room when the doors are opened.

Also note that no more air will escape through the grate than will enter. For example, if fresh air enters the room through the supply valve, which passes an average of 35 "cubes" per hour, it is simply useless to install too large grilles.

Manufacturers and prices

Here is a list of manufacturers of overflow gratings, whose products can be found on the markets of the CIS countries:

There are also products from other manufacturers. The average cost of door bars is approximately the same as in the price table for Arktos AP.

Where is it installed?

The overflow grille is mounted directly on the door leaf. Most often - in its lower part: carbon dioxide (which we exhale) is heavier than air. As a result, the “exhaust” air accumulates exactly below, from where it must be removed.

Attention should also be paid to where the air inflow point is located in the room. If it is located opposite the door (a window or a valve in the wall next to the window opening), then regrinding can be placed not only at the bottom.

If the inflow point is close to the overflow grate (on the adjacent wall), then the regrinding must be mounted at the bottom of the door leaf. This is done so that fresh air is not immediately removed from the room (and this will happen if the regrinding and supply are too close).

List of tools

For self-assembly you will need:

Ruler / tape measure.

Pencil/marker.

Drill with a small drill diameter.

Electric jigsaw.

Screwdriver / screwdriver - if the grate is bolted.

Glue - if the grill is glued to the door leaf.

File.

Mounting the door grill on the example of the Dvervent valve (video):

Conventional overflow gratings are installed in the same way, with the difference that it is not necessary to install a silencer.

Installation rules

For installation:

The place where the lattice will be located is selected.
The exact size of the inner frame that will be inserted into the door leaf is measured.
The shape of the future hole is marked on the canvas in full size.
In any corner of the markup (if it is a circle, then at any point in the circle), a hole is drilled with a drill.
From the drilled hole, the rest of the hole is cut with a jigsaw. The cut piece can be thrown away.
If necessary, the edges of the hole are leveled with a file.
The inner frame (with lamellas) is inserted into the hole and fastened in the prescribed way (bolts/glue).
On the other side of the canvas, the outer frame is attached.