Customers often inquire about the price of greenhouse films, and some customers inquire about the construction price of multi-span film greenhouses, and how to choose greenhouse films for multi-span film greenhouses. We summarize the following four points for your reference:
(1) Cold resistance and heat preservation performance: When choosing a greenhouse film, remember to choose low-priced and promotional products. The cost of pursuing low-cost greenhouse film is to replace the new vegetable greenhouse film every year. In addition to manpower and material resources, the cost is not low, and the total cost of comprehensive greenhouse film is not much cheaper. Therefore, it is best to choose a shed film that is durable, high-quality and efficient, with good thickness and high tensile strength. Covering such a shed film, the temperature in the greenhouse in deep winter can be 2°C to 3°C higher than that of a conventional shed film.
(2) Tear strength: tear strength refers to the transverse and longitudinal tensile strength and toughness of the greenhouse film. The shed film with high tear resistance will not be torn or torn slightly by heavy snow and strong wind in winter and spring.
(3) Light transmission performance: In winter and spring, there is a lot of wind and dust, and there are many hazy weather and high air humidity, so the shed film will be stained with a layer of dust. If it is a shed film with good light transmission performance, the surface is smooth and dust-free, or it is very clean after being washed with rainwater or snow water. The light transmission performance directly affects the light intensity and temperature conditions of the greenhouse.
(4) Droplet atomization performance: Greenhouse film is divided into drip film and non-drip film. The high-quality shed film has a good atomization level, no fog droplets are formed in the shed, and when the humidity is high, the water vapor will flow down to the air along with the shed film, and the anti-fog function is excellent. At the same time, pay attention to when buckling the shed, a good greenhouse film has a front and a back, and don't buckle the anti-fog layer to the outside.