2026-10-27

Multi-span PE film greenhouses utilize different PE film thicknesses to suit various applications

Before purchasing a multi-span PE film greenhouse, commercial growers determine the appropriate film thickness; the ideal choice depends on factors such as local wind loads, climate-related risks, and the specific objectives of the cultivation operation.

0.12 mm PE film: Primarily intended for regions with mild climates and low wind speeds. It offers excellent light transmission, ensuring that leafy greens, seedlings, and light-loving vegetables receive ample illumination. Its good flexibility allows for easy installation and tensioning over greenhouse frameworks. It is well-suited for farms that follow a regular replacement schedule; however, it is not recommended for coastal areas or exposed, high-altitude locations, as persistent wind can cause small tears in the film, thereby shortening its service life.
0.15 mm PE film: This is the recommended thickness for multi-span greenhouse factory. It offers an optimal balance of light transmission and tear resistance, capable of withstanding seasonal winds and minor abrasion from dust during use. For farms growing tomatoes, cucumbers, or flowers, this film provides a service life of 3–4 years; it is the preferred choice even in areas occasionally subject to strong winds.
0.20 mm PE film: This thickened PE film is designed primarily for harsh environments—such as windy coastal regions or areas prone to hailstorms—offering enhanced puncture and tear resistance. It can withstand sustained wind-induced vibrations, thereby reducing the risk of sudden ruptures. However, its light transmission is slightly lower; therefore, it requires a well-engineered structural framework, secure attachment channels (locking profiles), and closely spaced film-securing wires to prevent damage to the facility.

As a professional supplier of multi-span PE film greenhouses, Zheyang recommends that the film thickness be matched to the wind load.

Increasing the thickness of the film does not in itself guarantee operational safety. Wind load is a critical factor that must be considered: while a 0.12 mm film may suffice under low-wind conditions, higher wind speeds necessitate thicker film—used in conjunction with a reinforced framework and a robust anchoring system—to create a comprehensive protective structure.

Zheyang does not necessarily advise users to simply opt for thicker film. Instead, we prioritize a holistic system approach to mitigate risks from windstorms and hail—incorporating features such as reinforced steel frameworks, optimized support structures, high-density film-securing lines, and reliable fastening systems.

You are welcome to provide us with local climate data, wind speed records, and the types of crops you intend to grow. We will then recommend the most appropriate film thickness for your multi-span PE film greenhouse, along with a corresponding structural framework design, to help you achieve stable crop yields.

FAQ
Q1: Will thicker PE film help insulate the greenhouse better in cold winter?

A: The insulation improvement brought purely by thickness is very limited. The difference in heat retention between 0.15 mm and 0.20 mm single-layer PE film is small, and it cannot replace professional thermal insulation solutions. If you need to cut winter heating cost, we will recommend adding a second inner film layer or rolling insulation covers, rather than simply upgrading to thicker outer PE film. This method gives you much better energy-saving results without sacrificing sunlight.

Q2: Between upgrading film thickness and reinforcing the multi-span greenhouse frame, which one is more cost-effective for wind protection?

A: It depends on your local wind condition. For areas with occasional strong gusts, reinforcing the frame, adding bracing and increasing press lines is usually more cost-effective. You can keep the 0.15 mm film with good light transmission, and avoid the extra cost of thick film. For locations with year-round strong coastal wind or regular hail, Multi-span greenhouse factory combine a reinforced frame with 0.20 mm heavy film for full protection. We evaluate every project separately instead of using a fixed solution.

Q3: Why should I custom multi-span PE film greenhouse with Zheyang instead of other suppliers?

A: Many greenhouse suppliers simply recommend thicker PE film as a quick solution for wind and hail risks. At Zheyang, our custom design logic is different. We start with your farm’s location, local wind load data, crop type and budget to build a balanced solution. When the climate condition does not require heavy film, we will not push you to upgrade 0.20mm film unnecessarily. Instead, we optimize the hot-dip galvanized frame, bracing structure, lock channel and press line system to improve wind resistance. This keeps good light transmission for your crops and controls your project cost. We match the film thickness and the whole greenhouse structure together, rather than only adjusting the covering material. Every film recommendation is calculated for your unique farm.