Highly efficient vertical ventilation: The vertical facade of the sawtooth roof serves as continuous ventilation openings, utilizing the principle of thermal pressure (chimney effect) to create a powerful airflow that quickly expels hot and humid air. Ventilation efficiency is approximately 30% higher than traditional arched roof greenhouses with side windows, effectively preventing stuffiness and disease.

Uniform and stable lighting: The north-facing vertical lighting surface introduces stable and uniform north-facing diffused light, avoiding drastic changes in the angle of direct sunlight throughout the day, reducing crop scorching, and making the lighting inside the greenhouse softer and more uniform.

Strong climate adaptability: Particularly suitable for climates with high temperature, high humidity, and weak winds (such as South China and Southeast Asia), it is an excellent solution for solving summer cooling problems. Its structure also effectively prevents rainwater from directly entering through the ventilation openings.

Conventional Vegetable Cultivation: Leafy Vegetables: Lettuce, spinach, rapeseed, bok choy, etc. Short growth cycles and low temperature and light requirements make them ideal for off-season or early spring/late autumn cultivation in film greenhouses. Fruit Vegetables: Tomatoes, cucumbers, eggplants, peppers, zucchini, etc. Spring planting can be done earlier, and autumn planting can be delayed, effectively avoiding the low temperatures of open fields and significantly extending the harvest period. Fruit and Specialty Crops: Strawberries: Film greenhouses are the main form of off-season strawberry cultivation.

Through mulching and greenhouse insulation, fresh fruit can be supplied from winter to spring. Melons, Watermelons: Suitable for early-maturing cultivation. Seedling Raising: Cultivating seedlings for open-field vegetables, flowers, and fruit trees is cost-effective. Some Flowers and Shade-Tolerant Crops: Mid- to low-grade potted flowers, herbaceous flowers, or shade-tolerant foliage plants can be planted. In brief: Film greenhouses are "economical and practical," mainly used to resist low temperatures and extend the growing season. They are suitable for crops that do not have high requirements for environmental precision, have short growth cycles, and moderate economic benefits. They are currently the most widely used type of greenhouse in China.

Weifang Sainpoly Greenhouse Equipment Co., Ltd. is located in Weifang City, Shandong Province, covering an area of 32,000 square meters. With deep expertise in the agricultural greenhouse sector, the company is one of China's leading greenhouse manufacturing enterprises. 

We focus on the production, sales, and technical services of greenhouse materials, offering advanced greenhouse design solutions. We are also a professional supplier of various greenhouse types, including arch greenhouses, film greenhouses, polycarbonate sheet greenhouses, glass greenhouses, hydroponic greenhouses, and shade greenhouses. 

With 16 years of production experience and 11 years of export expertise, our annual production capacity reaches 100 hectares. Currently, our business covers most provinces in China and over 80 countries and regions worldwide, including the UK, France, Germany, the USA, Canada, Congo, South Africa, Uzbekistan, the UAE, and Singapore.