Do-it-yourself garage ventilation - simple, fast and efficient. A garage is the best way to keep your car from bad weather, vandals and of course car thieves. However, the constant presence of a car in a garage with poor ventilation, or even without it at all, will adversely affect its condition and you cannot avoid metal corrosion. Breathing toxic air in a confined space to a person will also not bring any benefit, and it is dangerous for people with whitening asthma to be in such a room at all. The building codes and regulations (SNiP) say that all outbuildings must be equipped with a ventilation system, so fresh air must be constantly supplied to them. In Russia, this level is set at a volume of at least 180 cubic meters per hour, in European countries, at least 360 cubic meters per hour. The ventilation system will help to solve the problem of lack of fresh air and a musty smell in the garage. How to make ventilation with your own hands will help you reading this article, where all stages of its installation will be described in detail.
Why do you need ventilation in the garage
If it is provided at the proper level, you can do the following:
- Make the air cleaner by removing harmful impurities associated with the operation of the car engine. Many drivers spend a significant amount of time fixing their car. Sometimes in the process of work it becomes necessary to turn on the motor. With a working hood, the exhaust gases will be quickly removed from the room.
- The garage is often used not only for vehicles. Sometimes vegetables can be stored there, for example. An increase in air humidity can lead to their deterioration. A high-quality hood will help solve this problem.
- Sometimes moisture can enter the room due to rain or snow. Proper ventilation will help remove excess moisture trapped inside.
Forced garage ventilation system Source notperfect.ru
- Sometimes condensation can form on the car or on the walls, which is destructive. A regular supply of fresh air will help prevent air from forming.
- Humidity is not only harmful to metal parts. In such conditions, fungus can form. It can be on the walls or, for example, on vegetables that some may store in the garage.
Breathable air, the absence of excessive humidity, a regular flow of fresh air will create not only a useful, but also a pleasant microclimate in the garage.
A couple more tips for arranging and operating the ventilation system
- It is recommended to check the ventilation function on a monthly basis. In summer, you can do this more often, since more intensive clogging of the ventilation grilles with dust and debris is not excluded.
- Be sure to insulate the outside of the chimney. In winter, warm air from the room, rising through the air duct, cools sharply and condensate falls out of it. At night it turns into frost, and during the day it melts in the sun and flows into the garage. To insulate the hood, a foamed polyethylene sleeve is suitable, which is put directly on the outer section of the air duct. To protect polyethylene from destruction under the influence of sunlight, it is recommended to wrap it with foil (ordinary food is suitable).
In addition, we recommend watching the video, which also reveals in detail some aspects of creating a workable garage ventilation scheme:
How ventilation works
In practice, various ventilation options can be used.They can be roughly divided on the basis of which principle of action is applied in each case.
The effectiveness depends on the quality of the insulation and waterproofing of the garage. If the walls or roof will allow moisture to pass through, the hood may not be able to cope with this.
Natural ventilation
It is possible to try to solve the existing problem with minimal effort. This option is the most widespread.
The easiest way to ventilate premises
See also: The most popular projects of garages and other "small forms" for a private house.
In this case, two ventilation holes will be required. One is at the bottom, near the ground. The other is under the ceiling. The most suitable hole diameter can be obtained with a simple calculation. One of the options for such a calculation suggests that for every square meter of garage area there is 2 centimeters of pipe diameter. That is, if its area is 6 sq. meters, then the pipe should have a diameter equal to 12 centimeters.
The principle of operation is based on the fact that the temperature in the room is usually higher than outside. Relatively cold air enters inside, which then heats up and exits through a hole in the ceiling. Instead, fresh air is supplied from the outside.
Most typical garages are 6 meters long and 3 meters wide. In this case, the diameter of each of the holes will be 27 centimeters.
Installation features:
- Instead of one lower one, you can use two, but smaller ones. In this case, their diameter should be 70% of the original size.
- Ventilation slots should be 10 to 15 centimeters above garage floor level.
Pipes are mounted to the ventilation holes Source chipmaker.ru
- On the other side, a pipe outlet is made under the ceiling. The latter is brought up, and the higher it is, the better the ventilation will work. It is believed that the minimum height cannot be less than half a meter.
- The slots must be sealed with a sealant, the lower holes must be closed with a grate, and the upper edge of the pipe is protected with a special tip that prevents precipitation from entering.
It must be remembered that although natural ventilation is much cheaper, the quality of its work does not always remain satisfactory. So, for example, in warm weather there will be practically no air flow.
It should be taken into account that when the air exits outside, condensation will form in the pipe. If nothing is done, then it will accumulate and flow down. To prevent this from happening, it must be removed regularly, for which a separate tank is usually installed.
As a result, due to the low efficiency of natural ventilation in a garage with a basement, it makes sense to consider purchasing quality equipment. Although it will take more money, in the end, the hood will provide high-quality ventilation in any weather.
Thus, you can check how effective the ventilation is.
Exhaust device by yourself
So, now you can consider in more detail the question of how to make a hood in the garage yourself. To do this, at the initial stage, it is necessary to perform a number of calculations. The initial parameters that will be needed for this are the volume of the room.
In order to provide the required amount of incoming air, it is necessary to calculate the optimal amount of exhaust. For garage premises for 1 sq. m of area should be 15 mm of the diameter of the air pipe. For example, for a standard garage with a size of 6x3 meters, you need to make a ventilation hole with a diameter of 27 cm.
Usually, the installation of only two hoods is considered, one of which is mounted for the supply of air, and the other for the outflow.But it is advisable to provide and make several ventilation holes, especially if the garage is equipped with a cellar.
- Supply openings must be located no higher than 10-15 cm from the field level. If you have planned to make two inflows, then you need to place them on opposite sides.
- The hood is mounted strictly diagonally from the inlet openings. The hood should be located high, almost under the very roof of the room. Even if you are going to equip both the supply and the exhaust with special fans, the holes must be positioned relative to each other only in this way. The ventilation system must provide excellent air circulation throughout the room. And if you place the ducts incorrectly, then some part of the garage will be left without a new batch of fresh air.
Ventilation of the garage under the house
Garages can be located separately, and in some cases they are located in the basement of an apartment building. Then the ventilation of the cellar in the garage becomes especially important.
At the same time, the general principles remain the same, but the implementation scheme is significantly different:
- The inlet, when viewed from the outside of the house, is still located at the very surface of the earth. A pipe begins from it, which passes into the building and goes vertically downward. In the garage, the hole is located next to the floor.
- Proper ventilation in a basement garage is done as follows. The hood starts at the ceiling of the underground garage and goes vertically up to the roof. It is considered. That it should go up above the roof surface to a height of at least 50 centimeters.
Exhaust pipe under the ceiling of the garage Source turbiruem.ru
- At the bottom of the hood there is a faucet for draining the condensate that has formed inside the pipe.
- The ventilation device in the basement of the garage is made in such a way that the external pipe exits must be closed from rain or snow.
- The outer outlet of the inlet pipe is closed with a lattice to prevent insects and small animals from entering.
It is unacceptable that the diameter of the pipe changes along its length.
What to do if you have a metal garage
Many people use garages made in the form of a metal box. To ventilate them, consider the following:
- They do not have a viewing hole, so there is no need to ventilate the underground part.
- The garage is made of metal, so moisture and condensation threaten not only the car, but also the garage itself.
- There is no heating. Therefore, most of the year there are sharp changes in temperature, contributing to the formation of condensation.
- There is no connection to the mains, so it will not be possible to install a forced ventilation system.
Therefore, in this case, two rectangular holes are made, closed by gratings in the front and rear parts of the garage under the roof. This will provide ventilation.
Grilles for ventilated windows
Garage with underground part
When purchasing a garage, the driver usually wants that there was a viewing hole in it. Ventilation is also required for this underground part. Usually, when installing it, the main focus is on the bottom.
In this case, the inlet pipe should exit at the floor of the garage itself. A pipe is also installed, one hole of which is located at the floor of the inspection pit, and the other at the floor of the garage. In this case, the outlet pipe is located at the top of the inspection pit.
This arrangement of ventilation holes ensures a steady flow of air Source chonemuzhik.ru
Do I need to buy forced ventilation
Suppose the simplest hood was installed earlier. Here are the signs that can be used to determine whether she is satisfied with the work:
- In the room, the air remains stale all the time.
- Stains from dry condensation regularly appear on the walls.
- Fungus or mold has appeared.
First, you can take steps to improve the efficiency of the hood. This can be achieved using one of the following methods:
- Make the diameter of the ventilation pipes larger.
- Make sure that the outer opening of the outlet pipe is higher than before.
- Additional inlet and outlet pipes can be made.
- If there is an electrical connection, install a fan to improve air circulation. It is often sufficient to install it on a chimney.
If this does not help, it makes sense to think about purchasing a high-quality forced ventilation system, provided that it is possible to provide it with power.
Cooker hood
Many car owners are painting in their own garage. It should be noted that even if the ventilation system is forced, the area where the painting will be carried out must be equipped with an additional hood.
This need is due to the fact that during the behavior of the work, toxic fumes and dust are formed before preparing for painting work. Ideally, it is very good to equip the ventilation system with special cleaning devices - filters.
The hood in the garage for painting should be more powerful than conventional hoods
The hood for painting in the garage should only be carried out by force, as well as the entire system. This requirement must be met, since the natural circulation of air is very slow, and you need to quickly clean the room of harmful vapors.
As practical experience shows, a system with two fans, one of which pumps air inward, and the other enhances its outflow. It is advisable to install filters in such a system both on the inflow and outflow. It is for painting works that the presence of a filtration device on the inflow is important. Dust and dirt often form on the street. And during painting work, each grain of sand settling on the surface to be painted will be noticeable. Therefore, before painting, the floor in the room is always moistened, and a filter must be installed on the inlet to prevent dust and dirt particles from entering the garage.
A hood with a filter releases substances containing harmful vapors into the atmosphere. Correct exhaust in the garage where the paint job is carried out implies that the inlet must be mounted under the ceiling, but the exhaust duct must be located at the bottom. The fact is that the vapors that arise during painting and interfere with the normal visual vision tend to go down, so the hood located below is more efficient and faster in facilitating the outflow of harmful vapors from the garage.
