Not All Polycarbonate Greenhouses Are the Same
When designing a greenhouse, there is no one-size-fits-all solution. The ideal material depends on the specific needs of the application: maximizing natural light, improving thermal insulation, enhancing energy efficiency or creating aesthetically pleasing structures for public spaces.
Traditionally, greenhouses were made of glass, appreciated for its transparency and light transmission. Over time, however, the industry has increasingly turned to polycarbonate thanks to its outstanding combination of impact resistance, durability, light weight and excellent thermal performance.
Among the available options, solid polycarbonate sheets and multiwall polycarbonate sheets each offer distinct advantages.
The choice isn’t about which one is better—it’s about understanding which one is better suited to the desired growing environment.
Solid Polycarbonate: when light makes the difference
Some applications require maximum transparency and exceptional optical quality.
Solid polycarbonate sheets are designed to offer high light transmission while maintaining excellent mechanical performance. Their perfectly transparent appearance makes them particularly suitable not only for horticultural applications, but also for architectural greenhouses and spaces where aesthetics play an important role.
Their main advantages include:
- Maximum transparency
- High light transmission
- Aesthetics
- High impact resistance
Because of these characteristics, solid polycarbonate sheets are i deal for application where plant visibility matters:
- Display greenhouses
- Botanical gardens
- Retail and public spaces
- Architectural projects
In these environments, allowing as much natural light as possible to reach plants while maintaining visual transparency becomes a key requirement.
Multiwall Polycarbonate: Designed for Energy Efficiency
When thermal performance becomes the priority, multiwall polycarbonate offers significant advantages.
Its internal air chambers act as a natural insulating barrier, helping to reduce heat loss during colder periods and lowering heating requirements. This contributes to improved energy efficiency and greater thermal stability throughout the greenhouse.
At the same time, the multiwall structure diffuses sunlight more evenly, reducing direct light concentration and helping prevent scorching on sensitive crops.
The main benefits of multiwall polycarbonate include:
- Diffused light for more uniform plant illumination
- Minimized direct sunlight concentration to reduce scorching
- Excellent thermal insulation, reducing heat loss
- Combines high strength with low weight
- Improves thermal stability
Typical applications include:
- Commercial horticulture
- Home greenhouses
For many growers, reducing heating costs while maintaining optimal growing conditions represents a significant competitive advantage.
Omipa Extrusion Technology for Polycarbonate Applications
At Omipa, we design dedicated extrusion lines for the production of both solid and multiwall polycarbonate sheets, combining efficiency, reliability and production flexibility.
Whether the goal is achieving maximum optical quality or optimizing thermal performance, our technologies are developed to support manufacturers in meeting the evolving demands of the greenhouse industry.
Our extrusion lines can also integrate an in-line anti-drop treatment system. This special finishing treatment, often performed off-line, is applied directly during the extrusion process, eliminating the need for additional handling and post-processing operations.
By integrating the anti-drop treatment in line, manufacturers can benefit from:
- Waterproof finished products
- Reduced production time and costs
- No additional post-processing steps
- Cleaner surfaces with no limescale stains
A smart solution that not only streamlines production, but also improves the final product’s performance and durability in greenhouse applications.
Because every growing environment has different needs—and every application deserves the right extrusion solution.
Discover now Omipa’s extrusion lines for Hollow Profile PC and for High Optical Quality and find the ideal technology for your next project.

