for personal needs or as a business in the cold regions can build a greenhouse thermos. Its main advantage is a constant plus temperature even in winter. The construction of such a structure will not be difficult, and materials for construction can serve as improvised means.
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- operating principle of the greenhouse in the ground without heating
- Pros and cons of underground greenhouses for year-round gardening
- Features facilities underground greenhouses
- Preparatory work for construction of the recessed greenhouse
- gable and lean-to greenhouses in the land of theirhands
- underground greenhouses( video)
- Examples greenhouses under the ground( photo)
operating principle of the greenhouse in the ground without heating
ConventionalThe greenhouses are designed in such a way that temperature changes are felt inside. But the greenhouses in the earth work in a different way. Because of the in-depth construction, the walls work like a thermos. This system allows you to save considerably on heating and electricity.
underground greenhouses are perfect not only for the cultivation of annual crops. You can plant perennial plants. Also in such a greenhouse is excellent to plant trees and bushes.
There is a myth that because of the small height and deep walls, the seedlings inside the greenhouse get less sunlight. But this is not true. Through the roof penetrates enough sunlight for a good growth of plants. The roof area itself is small, so there is less heat loss.
Type 2 earthworks greenhouses:
- Underground. The walls are completely underground. Such hotbeds are large enough and they grow perennial crops and trees. Deepening of the structure depends on the passage of groundwater.
- Recessed. In this case, only a part of the wall in 40-60 cm goes under the ground. The above-ground part reaches 110 cm. The construction is quite simple, but it will save much less heat.
The roofs of earthen greenhouses are rather flat. This can create inconvenience in winter. Such a hotbed should be regularly cleaned of rain so that the structure does not collapse. But there is a plus in this. Such a construction is resistant to strong winds.
Pros and cons of underground greenhouses for year-round gardening
Before the construction of the underground greenhouse should think things through, to evaluate the advantages and disadvantages of year-round gardening. To begin with, the gardener should know that cultivating crops can be both a beginner and an experienced gardener. In addition, it is possible to breed crops in Ukraine with a temperate climate, and in Siberia with severe frosts.
Pros of the underground greenhouse:
- Even without heating in winter, the greenhouse will retain a positive temperature. It will be at least 10 degrees.
- In summer, vegetables are reliably protected from ultraviolet radiation.
- Accessibility of the building. The deep greenhouse does not require large financial investments. This is the most budgetary option.
- Year-round greenhouse is an ideal option for organizing business all year round in Russia.
To build a reliable structure it will be necessary to build a strong frame. Also, do not forget about the foundation, which will ensure the durability of the building. But the main feature of greenhouses under the ground is the air space under the film or polycarbonate.
Constant temperature is ensured by the absence of drafts.
It is best to cover the greenhouse-thermos with polycarbonate. It is flexible, durable, does not miss ultraviolet, keeps heat and durable. You can use glass, but then plants will suffer from an overabundance of solar energy.
But such greenhouses also have disadvantages. They include difficulties in the construction of buildings. Also it is necessary to take care of ventilation. A care for plants in the hotbed-thermos can be difficult.
Features of the construction of the underground greenhouse
The main parameter that must be taken into account when building - the depth of construction. Here it is necessary to take into account the occurrence of groundwater and their winter freezing. If the water flow is shallow, then the construction of a winter greenhouse is very doubtful. The deep greenhouse should not reach the main bedding of groundwater. But beds should be placed below the level of freezing of underground sources in winter.
will turn out. The winter greenhouse is buried between underground waters and their freezing level.
It should be noted that there are 2 types of construction: buried and underground. The second option involves the equipping of stairs and special moves to gain access to plant care. The deep greenhouse is serviced by a grower when the roof is raised.
Types of greenhouses depending on the terrain:
- Horizontal;
- Inclined.
When building a greenhouse with your own hands, it is important to take into account the smoothness of the relief. Horizontal greenhouses have the same height of the wall, and the sloping ones are built on the slope. In this case, it is important to use solar energy as much as possible.
Depending on the area occupied, the greenhouses are divided into trench and foundation pit types. The first option is as long as possible with a small width. For a hollowed greenhouse, you need to dig a groove of the same width and length.
Preparatory work for the construction of a recessed greenhouse
Any construction work involves preparatory work. They include the choice of the construction site and the direct preparation of the soil. The winter greenhouse should be erected on the right site.
Things to consider when selecting a construction site:
- Wind direction. It is desirable to minimize gusty and cold winds. Underground greenhouse is resistant to strong winds, but with their constant availability it is necessary to further strengthen the greenhouse. To do this, you can mount a special fence.
- Illumination of the plot. The location of the greenhouse should be well lit so that the plants receive a maximum of light all day.
- Serviceability. You need to have constant access to the construction, so the greenhouse needs to be built near your place of residence.
When erecting a fence for additional protection, it is not necessary to make the construction too close to the greenhouse. This figure should be at least 8 cm. This is due to the fact that the wind flow in the collision with the fence is directed upwards and can cool the hotbed.
Gable and one-run greenhouse in the ground with your own hands
You can make a gable-edged greenhouse made of bricks. This is a reliable structure that will withstand the lowest temperatures. It can plant any crops, trees or seedlings. The construction itself may seem quite expensive, but you need to remember the longevity and savings in heating that will quickly pay for the greenhouse.
is used as a coating.
The foundation must be filled no higher than the freezing level of the ground. Depth is 80-90 cm.
It is necessary to divide such a thermos container into 3 functional zones: a working zone, a greenhouse and a tambour. The tambour serves as a place for installation of climate control systems. The roof in this compartment should not be transparent. Also, the vestibule can serve as a storage for tools. Insulate this room with mineral wool.
Sequence of erecting a gable underground greenhouse:
- You need to dig a foundation pit and fill the foundation. The depth of pouring is 80 cm. A ribbon base is used.
- Construction of walls in one brick. The thickness of the wall becomes 25 cm. You need to install windows above the level of 60 cm. To ensure good natural light, the distance between the windows is 2-3 bricks.
- Roof installation. The gable roof does not allow precipitation to remain on the surface. The optimal angle of the roof is 25 degrees.
Strapping bars must be mounted from the bottom to the floor. It is fixed with the help of rafters. Glass or polycarbonate can serve as a coating material. The second option is considered the best, as the glass is quite heavy and allows ultraviolet light to pass through. In this case, it is an order of magnitude more expensive than polycarbonate sheets.
Walls need to be protected with a galvanized visor. It is mounted with an indentation from the wall for 8-10 cm. The building is quite durable. She can serve at least 15 years.
P Outer greenhouses( video)
Ogonists often erect underground greenhouses for year-round cultivation of crops. In the thermo-hothouse, you can even plant trees that require constant high temperatures. So you can not only organize growing for personal needs, but also arrange a profitable business. At the same time, thanks to a unique design, the cost of keeping the greenhouse is insignificant.
Examples greenhouses underground( photo)