Customers in Africa purchased our zigzag greenhouses to grow vegetables. This greenhouse is 60 meters long and 40 meters wide. The greenhouse frame is hot-dip galvanized and covered with a 3-layer PO tape scattering anti-drip film with a 5-year warranty. Equipped with internal shading system and top ventilation system. This ventilation system is suitable for use in tropical and rainy areas. Top ventilation helps the hot air inside the greenhouse escape to the outside of the greenhouse. At the same time, this top ventilation method does not need to be closed even on rainy days. At the same time, this kind of greenhouse has a very good cost performance, so it is recognized and chosen by many customers.

This greenhouse used in Saudi Arabia is designed with an arched roof and is covered with membrane. Surrounded by solar panels. The top covering film can use a film roll to achieve top ventilation. It is also equipped with a fan and water curtain for cooling. Each span has 3 sets of fans for cooling.

Greenhouses have come a long way since their humble beginnings, evolving from simple structures to sophisticated technological marvels. This journey reflects the ever-changing needs of agriculture, horticulture, and our quest for a sustainable future. In ancient times, the concept of a controlled environment for plant growth can be traced back to the Roman Empire. The Romans built rudimentary structures known as "specularia," which were used to grow exotic plants. These early greenhouses were essentially large rooms with transparent materials, such as mica or oiled cloth, to allow sunlight to enter. However, they were mainly used for the pleasure of the wealthy and did not have the advanced features we associate with modern greenhouses. During the Middle Ages, the art of growing plants in controlled environments was largely forgotten. It wasn't until the Renaissance that interest in horticulture was rekindled. Wealthy nobles and scholars began to build small gardens with glass-covered enclosures to protect delicate plants from the harsh elements. These early glasshouses were still relatively simple in design but marked the beginning of a new era in plant cultivation. Today, greenhouses are an integral part of modern agriculture and horticulture. They come in a wide variety of sizes and designs, from small backyard hobby greenhouses to large commercial operations. Advanced technologies such as computerized climate control, LED lighting, and hydroponics are being used to optimize plant growth and maximize yields. Greenhouses are also playing an important role in sustainable agriculture by reducing water consumption, minimizing pesticide use, and enabling year-round production in areas with harsh climates.

In general, the unit size and overall size of a greenhouse are used to describe the architectural size characteristics of a greenhouse. (1) Unit size of a greenhouse The unit size parameters of a greenhouse mainly include span, bay, eaves height, ridge height, etc. ① Span: The horizontal distance between the axes of two adjacent columns in the greenhouse in the direction of the vertical gutter. Usually, the specifications of the greenhouse span are 6.00 m, 6.40 m, 7.00 m, 8.00 m, 9.00 m, 9.60 m, 10.80 m, and 12.80 m. ② Bay: The horizontal distance between the axes of two adjacent columns in the greenhouse along the gutter direction. Usually, the specifications of the greenhouse bay are 3.00 m, 4.00 m, 4.50 m, and 5.00 m. ③ Eaves height: The vertical distance from the indoor floor elevation to the eaves under the gutter. Usually, the specifications of the greenhouse eaves height are 3.00m, 3.50 m, 4.00 m, 4.50 m, 5.00m, 5.50 m, 6.00 m, 6.50 m, and 7.00 m. ④ Ridge height: The distance between the indoor floor elevation of the greenhouse and the highest point of the greenhouse roof truss. It is usually the sum of the eaves height and the roof height. (2) The overall dimensions of the greenhouse and the scale of the greenhouse The overall dimensions of the greenhouse mainly include the length and width of the greenhouse. ① Length: refers to the total length of the greenhouse in the direction of the larger overall size ② Width: refers to the total length of the greenhouse in the direction of the smaller overall size, ③ Total height: refers to the distance between the indoor floor elevation of the greenhouse and the highest point of the greenhouse. The highest point can be the highest point of the greenhouse or the highest point of other components outside the greenhouse roof (such as the external shading system, etc.).

vegetable greenhouses, most is multi-span film greenhouse, venlo big polycarbonate and glass greenhouse.