For the normal maintenance of the air regime in the room, a natural circulation of air masses should take place in it , so that moist air will leave naturally. This is especially important for all types of rooms located in the ground (cellar, garage pit, basement of the room, and so on), because with insufficient exchange the air becomes stale and stale, there is a feeling of dampness, and condensation droplets are visible on the walls of the room. For this reason, the ventilation of the cellar is especially important, since it is designed to store fruits and vegetables, and for them the correct temperature and humidity are the main parameters of preservation.
There are several types of ventilation, among which natural and forced. Natural occurs due to the difference in pressure of air masses inside and outside, and when it is installed, the main thing is the installation of a vertical ventilation pipe. It is important to pay attention to the fact that the pipe should go above the zone of wind support, since otherwise there is a risk of tipping over the rod. Forced ventilation of the cellar is the same pipes with a cross-section of at least 150 mm, in which fans are integrated that carry out air exchange in the basement.
For ventilation, two pipes are installed - exhaust and supply, and they are placed at different levels. The hole of the supply pipe is located in the corner of the lower part of the room, at a distance of 40-50 cm from the floor. In the opposite corner, but already under the very ceiling, there is an exhaust pipe, through which old air will leave. This is the most correct design, thanks to which you will have natural ventilation of the cellar, as a result of which it will always be dry. In the upper pipe, you can also install an additional valve, with which you can adjust the air movement yourself, covering it a bit during strong winds and frost.
For ventilation, plastic or asbestos-cement pipes can be used, and ventilation holes do not have to be round. If you wish, you can independently shoot vertical boxes from the boards through which air will also circulate successfully. However, in this case, the boards should necessarily be covered with hot bitumen to protect against settling of moist air on the tree. The upper part of the duct or pipes is also recommended to be insulated as much as possible in order to prevent condensate draining on the inside of the pipe due to temperature differences. And most importantly, remember that proper ventilation of the cellar is the key not only to the high-quality storage of products, but also to ensure a favorable indoor climate.
In addition to the foregoing, it should be borne in mind that the cross section of the pipe should be selected depending on the area of the room. If your cellar has an area of 708 m2, then its section of 120 mm will be sufficient. In some cases, ventilation in the cellar is carried out through one pipe, which can also be seen in many basements or cellars. Of course, with such a device, the air exchange rate will be less, however, if the cross section is increased to 180 mm, then the result can be the same as with two pipes with a cross section of 120 mm. Much also depends on the location of the cellar, wind and weather conditions.
If you have a garage with a pit, then it should also provide for natural or forced air exchange, depending on your desire and capabilities. The ventilation of the cellar in the garage plays an important role not only for the products that are stored in it, but also for the car, since there is nothing worse for it than humid and stale air. Always remember that the optimum level of humidity is necessary not only for long-term storage of food products, but also for humans, since health also depends on it - yours and your loved ones.