This Venlo PC sheet greenhouse is a multi-span structure covered with polycarbonate hollow sheet, built for flower growing and horticultural production. The Venlo roof uses a series of narrow gables repeated across each span, a profile that carries snow and wind load well and vents warm air through roof windows. The frame is hot-dip galvanized steel pipe with a double-sided zinc coating, so it resists rust in humid and coastal air. Covering is 8 mm or 12 mm PC sheet, a double-wall panel with an air gap that insulates better than a single film layer and resists impact far better than glass. Spans of 6.4 to 10.8 metres and heights of 4 to 7.5 metres are set to the site.
This Venlo PC sheet greenhouse is a multi-span structure covered in polycarbonate hollow sheet, built for flower growing, horticultural production and nursery work. The Venlo roof profile repeats a narrow gable across each span, which is a shape that carries load well and gives good ridge ventilation. Because the covering is PC sheet rather than film, the house holds heat and resists impact, so it suits growers who want a stable internal climate through the year rather than a cover that is replaced every few seasons.
The frame is hot-dip galvanized steel pipe with a double-sided zinc coating, which is the part that decides how long the structure lasts in humid and coastal air. The Venlo roof is built from a row of small gables running the length of each span, carried on columns and trusses. That profile is stiffer than a single wide arch, so the house takes snow and wind load without extra bracing, and roof windows sit in the ridges where warm air collects. Covering is 8 mm or 12 mm polycarbonate hollow sheet fixed into aluminium profiles, with gutters between spans taking rain to the ends of the house.
| Cover material | 8 mm or 12 mm polycarbonate hollow sheet |
| Frame material | Hot-dip galvanized steel pipe |
| Roof profile | Venlo, multi-span narrow gables |
| Span range | 6.4 to 10.8 metres |
| Structure height | 4 to 7.5 metres |
| Service life | Structure 15-20 years, structure warranty 10 years, anti-corrosion warranty 5 years |
| Optional systems | Cooling, heating, irrigation, ventilation, shading, benching |
Flower crops respond to light quality and to temperature consistency, and that is where polycarbonate greenhouse covering earns its place. PC sheet diffuses light across the crop rather than concentrating it in hard patches, which reduces leaf scorch in strong sun and gives more even colour development on cut flowers and potted plants. The air gap inside the sheet slows heat loss, so night temperatures stay above the level where flowering stalls, and the growing window stretches at both ends of the year. PC sheet also resists impact far better than glass, which matters on hail-prone sites, and it holds its light transmission for years without the yellowing that film develops.
The same structure is used across glasshouse horticulture beyond cut flowers. Nurseries use it for propagation trays and young plants where a stable root-zone temperature gives more even germination. Growers producing potted ornamentals use it for the insulation and the steady light. Vegetable and herb operations use it where the house needs to run through winter. Research and experimental bases use it where conditions must be repeatable from cycle to cycle. Benching, irrigation lines, thermal screens and lighting can all be fitted inside the frame, so the house can be equipped in stages as the operation grows.
The house ships as a metal frame package with the PC sheet, glazing profiles and installation notes. Steel sections are bundled and labelled against the assembly drawings so the build follows a clear sequence, and the sheet is crated for container loading. Our engineering team supplies drawings and guidance through construction, and where a customer wants support on site we can send engineers to guide installation. Many buyers visit the factory before placing an order, and we welcome that.
It is a multi-span greenhouse with a Venlo roof profile, meaning a row of narrow gables across each span, covered with polycarbonate hollow sheet instead of film or glass.
PC sheet diffuses light, insulates better than film and resists impact far better than glass, so flower colour develops more evenly and the house holds a steadier night temperature.
Spans range from 6.4 to 10.8 metres and heights from 4 to 7.5 metres. Send us the site layout and crop plan and we will size the house to fit.
Yes. Cooling pads, exhaust fans, heating, irrigation, shading screens and benching can all be fitted to the same frame as the operation grows.
The galvanized frame is designed for a 15-20 year service life, with a 10 year structure warranty and a 5 year anti-corrosion warranty. PC sheet does not need the repeated replacement that film does.
Compare this house with our Venlo PC green house, the polycarbonate greenhouse and our Venlo glass green house for other covering options.
For commercial greenhouse standards and crop production references, see the National Greenhouse Manufacturers Association and Produce Grower magazine on protected cropping practice.
