The polycarbonate greenhouse is built with an aluminium alloy grooved channel frame that locks each PC hollow sheet in place, giving the structure extra resistance against wind and weather. Twin-wall panels offer good thermal insulation and light transmission, making this PC panel greenhouse a practical choice for commercial farming, plant nurseries and research bases. The hot-dip galvanized steel frame is designed for a long service life in humid growing conditions, and the covering can be specified in 8mm or 12mm polycarbonate hollow sheet to suit the climate.
The polycarbonate greenhouse is designed around an aluminium alloy grooved channel frame. Each PC hollow sheet sits inside its own channel, so the covering stays locked down when wind and weather press against it. That construction gives the commercial greenhouse a stable structure, a clean appearance and reliable thermal insulation performance.
The growing frame is made of hot-dip galvanized steel pipe, which resists rust in the humid conditions of a working greenhouse. The covering is a twin-wall polycarbonate hollow sheet in 8mm or 12mm, set into a grooved channel frame that reinforces the panels and keeps joints tight.
Twin-wall PC sheet holds a layer of still air between its two walls. That air gap slows heat loss, so the greenhouse stays warmer at night than a single-layer covering would allow, and the same structure helps keep daytime temperatures from spiking too quickly.
| Structure material | Hot-dip galvanized steel / aluminium alloy |
| Covering material | 8mm or 12mm polycarbonate hollow sheet |
| Span | 6.4m / 8m / 9.6m / 10m available |
| Total structure height | 4m to 7.5m |
| Light transmission | 90% to 95% |
| UV protection | UV resistant coating on the PC sheet |
| Lifespan of PC sheet | 15 to 20 years |
| Insulation | Moderate, improved by the twin-wall air gap |
| Ventilation | Roof vents, side vents or automated systems |
| Heating | Optional, such as boiler or radiant heating |
The PC panel fares well against impact. Its shock performance is around 200 times higher than glass and 8 times higher than acrylic sheet, which matters on a site where hail, tools and crop carts all come close to the covering.
At very high temperatures the polycarbonate softens without spreading flame, giving the sheet useful flame retardancy. The material also installs without cracking or breaking, so panels can be handled and fitted on site with less risk of damage.
Polycarbonate has low thermal conductivity, and the twin-wall gap adds another layer of resistance. Condensation forms less readily than on a single skin, which helps keep the crop canopy dry and reduces drip onto leaves. When you are specifying a protected cultivation structure, matching the covering to the local climate is the first decision.
The grooved channel frame is assembled on site from galvanized steel pipe and aluminium alloy sections. Because the PC sheet slides into the channel, panels can be replaced individually without dismantling the surrounding covering. HortiDaily regularly covers how commercial growers plan and maintain this type of structure.
Routine work is limited. Wash the panel surface periodically to keep light transmission high, check the channel fixings after storm season, and confirm that vents still travel freely.
This PC panel greenhouse suits commercial vegetable and flower production, plant nurseries, seedling raising and experimental bases. Farms on varied or complex topography can use the same frame system, since the span and height are specified to suit the site. You can see the full range on our polycarbonate greenhouse page, or compare it against the Venlo glass house and the scientific research greenhouse.
We supply 8mm or 12mm polycarbonate hollow sheet. The thicker sheet gives better insulation and is usually chosen for colder sites, while 8mm suits milder climates and keeps the structure lighter.
The main frame is hot-dip galvanized steel pipe. The zinc coating protects the steel in humid greenhouse conditions, and we also offer aluminium alloy framing.
For a greenhouse on a normal growing site, 15 to 20 years. The sheet carries a UV resistant coating that slows the yellowing and embrittlement caused by sunlight.
Yes. Span is available in 6.4m, 8m, 9.6m and 10m, and total structure height can be set between 4m and 7.5m. Tell us your site conditions and the crop, and we will confirm a suitable configuration.
The greenhouse ships as a knockdown kit of frame parts and PC sheet. Our engineers can travel to your site to guide installation when required.
