There are gardeners and gardeners who say that greenhouses are basically useless – there is no sense in spending time on their construction and care to get your harvest for a week earlier than usual. And all plants grown in a natural environment are not so much affected by pests and taste more pleasant. But at the same time, greenhouses continue to be actively used and there are many reasons.
One of them lies in the fact that many plants initially require for themselves the conditions of growth similar to tropical or subtropical climatic belt. Therefore, they need a temperature of at least +25-35 C and a humidity level of at least 75, and better 100%. On the territory of our country, as a rule, temperature and humidity are very serious from these requirements. In addition, there is always an uncontrolled factor of prolonged and cold spring and early frosts in the fall, which very strongly shortens the period of full fruiting for many vegetable crops. In addition, if the site used is very small, then the use of the greenhouse will allow you to get a much larger harvest from it than with normal cultivation.
Choosing and building a greenhouse
First of all, you need to decide on the location of the greenhouse and the crops that will be grown in it, since taking into account this information will be made a greenhouse frame. After that, you need to select covering material for the greenhouse.
When building a frame, it is important to take into account the size of the poor plants. So, for plants, it is best to make a fastener or attic type (in the form of a small house) for plants quite high. Arched greenhouse frames are best suited for stunted crops and, moreover, it is very easy to close them with covering material.
The frame itself is best made of metal or wood. Duralumin is usually used as a metal, since it is easiest to install and assemble it, as well as disassemble when transferring or restructuring a greenhouse structure.
Typically, the choice of covering material was limited to the choice between glass and film. But recently, cellular polycarbonate has been gaining more and more popularity. The uniqueness of this material consists in its multi -layer and the presence of a rib of stiffness between these layers. In modern greenhouse construction, its advantages become undeniable, since it is also 6 times easier and 200 times stronger than glass. This allows you not to waste time and means to create a powerful foundation for the greenhouse. In addition, cellular polycarbonate has 86% of light transmission and at the same time completely filters out dangerous ultraviolet rays. This protects plants from light burns and at the same time provides them with excellent illumination.
In addition, the panels of this material retain all its properties with an amplitude of temperatures from -40 to +120 s. And the warranty periods of the greenhouse from the signature usually make up from 10 to 15 years.
In addition, due to an increase in popularity, prices for this material are becoming more and more affordable. Therefore, from the position of assessment of the “spent means – the results obtained”, this material has the best results.
Using cellular polycarbonate
When installing the panels, you need to ensure that all the stiffeners do not go horizontally, this will prevent the accumulation of condensate
You can not bend the material sheet for the largest radius, which is indicated by its manufacturer
For cutting, you need to use a construction knife or fine saw
Before installing the panel, you need to seal the ends with a self -adhesive tape
After the installation ends, you need to remove the entire protective film.