Products

Tunnel greenhouse structure

These greenhouses are used as a single or twin tunnel with a height of 3 to 5 meters for growing vegetables and garden flowers. The suggested length for these greenhouses is suggested up to 50 meters due to having a roll-up window.

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These greenhouses are the simplest and cheapest type of modern greenhouses with plastic covering, which are implemented in units with a section of a circle (or similar). Cheapness, quick and easy installation, the ability to better control the spread of diseases and pests from one unit to other units and receiving more light per unit of greenhouse area due to the high ratio of the external surface to the cultivated surface are among the merits of tunnel greenhouses.

Its disadvantages include the following:
- High energy consumption for heating in winter due to the high ratio of heat exchange surface (external surface) to cultivated surface.
- Significant increase in the temperature inside the greenhouse in the summer due to the high ratio of the surface against radiation (external surface) to the cultivated surface.
- The low volume of air available to the plant for photosynthesis (in winter) due to the low ratio of air volume inside the greenhouse to the cultivated area.
- The rapid effect of ambient temperature fluctuations on the temperature inside the greenhouse due to the high ratio of the heat exchange surface (surface
external) to the volume of air inside and as a result of thermal shock to the plants and a negative effect on their performance
- The impossibility of using the surface under the cover in the side parts for most plants (due to the arch of the structure on the sides)
- The possibility of freezing of any greenhouse unit in case of problems in its heating system (for greenhouses that do not use a central heating system.)