Is the height of the glass greenhouse as high as possible? Professional analysis helps you avoid construction misunderstandings!

1.The height of the glass greenhouse is not the higher the better, scientific considerations are needed

Many farmers believe that the larger the space of the greenhouse, the better the ventilation and the better the crop growth environment. In fact, blindly increasing the height may cause the cost to rise rapidly; insulation becomes difficult; the structure is not stable enough, etc. The appropriate height of the glass greenhouse needs to be determined by combining the following factors:

1.The height is determined by the growth needs of crops

Different crops have very different requirements for space:

Climbing crops such as tomatoes, cucumbers and grapes require a height of more than 3 meters to ensure that the vines can grow fully. In fact, if you think about it a little, you will understand that only by giving them enough space can they thrive.

Low crops such as strawberries, lettuce, and spinach can meet the needs of about 2.5 meters;

-Seedling Greenhouses are generally controlled at 2.8 to 3.2 meters. Too high a space will increase the difficulty of temperature control.

2.Climate and environment affect the height selection

-Cold areas: 3 to 3.5 meters is recommended to reduce heat loss and reduce winter heating costs

-High temperature and high humidity areas: It can be appropriately raised to 4 to 4.5 meters to enhance ventilation and reduce the occurrence of pests and diseases

Windy and snowy areas: Too high greenhouses will increase wind resistance and snow pressure, and the frame needs to be reinforced, thereby increasing construction costs.

3.Economic costs increase with height

For every 0.5 meter increase in height, the construction cost may increase by 10% to 15%. Specifically, it includes:

-More steel support

-Larger area of ​​glass coverage

-Stronger wind and snow resistance structure

In addition, high greenhouses are more difficult to keep warm in winter, and they need to be equipped with additional internal insulation curtains and heating systems, which will increase operating costs.

2.Professional recommendation: The golden height of glass greenhouses for different purposes

1.Single-span glass greenhouse

- Conventional planting: 3 to 3.5 meters, to ensure the growth space of crops, while taking into account the heat preservation

- Elevated cultivation: 3.8 to 4.2 meters is suitable for three-dimensional planting mode.

2.Multi-span glass greenhouse

- Standard veneer greenhouse: gutter height 3 to 4 meters, span 9.6 to 12 meters, bay 4 meters, to ensure ventilation and mechanical operation space

- Ecological restaurant sightseeing greenhouse: more than 5 meters, to improve aesthetics and comfort

3.Special purpose greenhouse

- Seedling greenhouse: 2.8 to 3.2 meters to avoid excessive height and large fluctuations in temperature and humidity.

- Flower planting: 3.5 to 4 meters to meet the growth needs of tall flowers