The main structural materials of greenhouses vary depending on the type and configuration of the greenhouse. Common materials include hot-dip galvanized steel pipes, aluminum alloy profiles, and composite materials.
Hot-dip galvanized steel pipes: This is currently the most widely used material for greenhouse frames, especially dominant in multi-span greenhouses and polycarbonate greenhouses. Processed through hot-dip galvanizing, it offers excellent corrosion resistance, with a service life of 15-20 years or even longer, and is relatively economical, making it suitable for large-scale agricultural production.
Aluminum alloy profiles: Often used in high-end glass greenhouses or exhibition greenhouses, they offer advantages such as light weight, corrosion resistance, good sealing, and an aesthetically pleasing appearance. They are often used in conjunction with glass or polycarbonate panels as supporting and mounting components.
Composite materials: Such as fiberglass (FRP) or PVC profiles, offer better insulation performance, but their strength and durability are generally lower than metal materials. They are often used in greenhouses where cost is a major consideration or for special design requirements.
