Not only summer residents, but also owners of private houses arrange on their sites a variety of sizes and structures, which can be combined under the general name of "greenhouse".Without dwelling on the technology of construction and choice( described here) and internal arrangement( for example, engineering communications), we will consider only one, but very important question. It is in many respects from the quality of natural illumination that the intensity of shoots planting and their yield depends.
As a transparent coating, various materials are used - from a variety of types of films to glasses. Everything depends on the material capabilities of the owners and some other factors, for example, the frequency of using the greenhouse( only in season or throughout the year).Recently, reinforced film has been increasingly advertised. But before analyzing the effectiveness of its use, it is necessary to understand the criteria by which to evaluate the specific material intended for such a "glazing".
What should the
- film provide? Protecting plantations from the influence of external factors: wind, temperature changes( including freezing), precipitation, fog, ultraviolet.
- Maintain a constant temperature, and at a level favorable for the development of plants.
- Increase the humidity inside the "room".
From the name of the material - "reinforced" - it follows that it has some sort of reinforcing structure. And this is actually so. In a certain approximation, such a film is a network with cells that are filled with polyethylene. But the threads can be different. Depending on the manufacturer, glass fibers, twisted polyethylene, polypropylene fibers and the like are used for their manufacture.
The best for use is a reinforced film, in the cells of which there are microscopic holes, thanks to which a qualitative natural ventilation of the sheltered space is provided. This is the case, for example, of Danish products.
Advantages of reinforced
- films Withstand a heavy load compared to conventional PVC.It is advisable to use if the hothouse is not disassembled for the winter period, in regions with heavy precipitation, in places subject to increased exposure to winds.
- Has good resistance to damage. Users note that if there is a mechanical effect on the material, which leads to its rupture in some place, then the cut will not go any further, as this will be prevented by reinforcement threads. Proceeding from this, the film can be "repaired", while there is no sense to put a patch on PVC.
- Possibility to use for several seasons.
- In the case of Danish film, you can not worry about the daily airing of the room, as well as not to equip the windows with this.
The cost depends on where and by what technology the product is manufactured. Domestic, Korean and Danish films are more common on the domestic market.
Based on the above, it turns out that the reinforced film is much better suited for coating greenhouses than conventional PVC.
