All businessmen know that the key to a successful project is a correctly drawn up business plan. This also applies to greenhouse complexes.
General plan example
In order to explain everything you need, it is best to give an example of how this is done. Naturally, almost any business begins with a plan. In this case, it is necessary to develop a project for the construction of a greenhouse complex. For example, a plan will be described, according to which it is possible to build a farm on 3-6 hectares of land for future vegetable growing.
- The first thing to do is to determine the area where the construction of the facility will take place.
- The payback period of this complex is from 4 to 5 years.
- The percentage of profitability will be from 30 to 40.
- What is important to consider before proceeding with the construction of a new greenhouse complex are risks. This term refers to the risk that banks will refuse to provide a loan for construction, which will slow down the progress of all work.
Object construction
Naturally, in the construction of any complex, its most important part is the main structure. In this case, it is recommended to erect a building from metal parts, which are made using the hot technology method of galvanized steel.
A rather important part in the construction of the greenhouse complex is the material for the roof. At present, it is best to choose single-layer polycarbonate as the main raw material, which is specially designed for this purpose. The difference from the usual coating is that the inner surface has additives that prevent dew. The outer side of the material is covered with anti-dust compounds, which allow the maximum amount of light to penetrate into the greenhouse. In addition, on this side there is also protection against sand and dust, which are carried in windy weather.
The recommended polycarbonate thickness for the construction of the greenhouse complex is 8 mm. It is also very important to create a large angle during construction to prevent the accumulation of snow in the winter. Material grade is usually taken by X Ltd.
Polycarbonate will also be used as the main raw material for the walls, however, it is already a two-layer type, and its thickness should be at least 4 mm. Such material is usually presented in the form of non-corrugated transparent sheets.
A rather important element in the construction of the greenhouse complex was the mulching film. Its main purpose is to prevent the growth of weeds in the greenhouse. It is presented in the form of a white permeable polypropylene film that completely reflects the light.
Arrangement of ventilation
During the construction of the greenhouse complex, ventilation is a rather important issue. According to this plan, it is best to install it in the side walls, as well as on the roof. The ventilation itself will be presented in the form of windows with gearboxes in which a rack and pinion gear is used. The main profiles for these elements are planned to be made of aluminum.
Creating a microclimate
A very important step in the construction of the object will be the creation of a certain microclimate inside the greenhouse. A properly created climate is the key to the success of the whole idea.
- The first is air circulation. This can be achieved by placing propeller fans inside the structure. They are necessary in order to push hot air through the side ventilation in the warm season, as well as to cool the plants themselves, using the process of mixing air. It will also prevent condensation. It is best to select three-phase devices for these purposes.
- It is worth doing the installation of thermal screens. Their main purpose is to save energy up to 40%. It is best to choose devices that have an aluminum coating. It provides adequate cooling during the hot season and provides approximately 30% shading.
- Also, during the construction of the greenhouse complex, it is very important to take care of the device of the desired humidity inside. For this, special fogging agents are used, which with the help of aerosol cooling will maintain the desired moisture level.
- It is also very important to ensure the supply of CO 2 , which is necessary for the proper metabolism of plants at a time when the object will be closed due to weather conditions.
Construction of a greenhouse complex in the Rostov region
The construction project of this facility is quite large-scale. The Don Manor project is a complex that is planned to be built on an area of 18 hectares. It is planned to make this facility the most ambitious in terms of productivity - up to 14 thousand tons of vegetables per year. The number of jobs will be 4 hundreds, and the greenhouse will operate year-round.
It is worth noting that the feature of this complex will be that it will be built in close proximity to gas deposits. This means that the greenhouse will be equipped with gas generating units, which will supply the building with energy and heat.