RUINENG Greenhouse Engineering
RUINENG Greenhouse Engineering—headquartered in China and trading at filmgreenhouses.com—builds its reputation on low-cost, large-area film houses. The company’s standard offer is a galvanized-steel tunnel or multi-span block clad in single- or double-layer PO/PE film, designed for vegetable and flower growers who need to cover a hectare or more without breaking the budget. The frames are simple round-arch or shallow Gothic ribs, pre-punched and bolted, so no welding is required on site. Ventilation is provided by side-wall roll-ups or roof vents, and every project can be shipped with drip lines, pad-fan cooling, soil-less troughs and even a biomass boiler as one turn-key package. RUINENG’s sweet spot is temperate to sub-tropical zones where the main challenge is removing heat and humidity, not supporting snow.
Gothic Arch Greenhouses, based in Mobile, Alabama, serves the North American market. Its signature structure is the true Gothic-arch house: a steep, pointed roof that sheds snow and rain while capturing extra morning and afternoon light. Although the firm still supplies plenty of film-covered arches, it also offers the same frame in twin-wall polycarbonate or glass, and it keeps a full inventory of hobby-sized kits as well as commercial houses. Engineering stamps for 70 lb/ft² snow and 120 mph wind are routine, and customers can pick up the phone for stateside technical support or freight consolidation from a U.S. warehouse.
Despite these differences, the two companies share a common heritage of curved-arch greenhouse design. Both use galvanized steel members that bolt together to create a clear-span bay—no internal columns—so tractors, trolleys and overhead irrigation booms move freely. Both sell UV-treated, anti-drip, anti-fog film with three- to five-year warranties, and both let you lengthen the house bay-by-bay or join several bays into one long range. Natural ventilation packages (side roll-ups, roof vents, insect screens) and optional mechanical systems (pad-fan cooling, thermal screens, heating manifolds) are available from either supplier.
In short, choose RUINENG when you need maximum covered area at minimum cost and you want one Chinese factory to deliver steel, film, irrigation and climate hardware in a single container. Choose Gothic Arch Greenhouses when you are in North America, need certified snow and wind ratings, prefer local spare parts and phone support, or simply want the classic Gothic peaked silhouette for a school, garden center or upscale retail grower.
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When searching for a commercial greenhouse for sale, Ruineng Greenhouse delivers the same core philosophy as Harnois: a factory-prefabricated, hot-dip-galvanized steel Gothic arch covered with long-life anti-drip PO film, shipped as a flat-pack kit that bolts together on site without welding. Both brands promise high light transmission (≈90 %), 8–9 m spans, and the option to add gutters, vents or internal equipment later. The similarities stop there, however; every subsequent detail is engineered to give Ruineng owners a faster, stronger and cheaper path to positive cash-flow.
When commercial growers need a greenhouse that can be erected quickly, survive extreme weather and still keep cost per square metre low, they usually end up at the same web address: filmgreenhouses.com. RUINENG Greenhouse Engineering, the company behind the site, has spent the last decade perfecting one simple promise—factory-direct sales of durable, customizable greenhouses for all crops and climates.
RUINENG Greenhouse Engineering (filmgreenhouses.com) is a Chinese manufacturer that competes on scale and speed. Its core offer is the film-house: galvanized-steel arches clad in single- or double-layer PO/PE film, delivered as a turn-key kit that can cover ten or even seventy acres at a time. The company’s own literature highlights two obsessions—span and bay width. By widening the span to 9 m while keeping the gutter at 4.2 m, and by narrowing the bay to 3.5 m in windy zones, RUINENG claims a 30 % gain in usable floor area and wind resistance up to 118 km/h without adding steel weight. Every project is bundled with site-specific sensors, an IoT dashboard that tracks 50+ climate points, and on-site training in Shouguang cropping techniques; a 70-acre block in Uzbekistan went up in six months and produced six-fold tomato yields the first season. In short, RUINENG positions itself as a one-stop, low-cost, high-throughput solution for governments and large private growers who need to be in production before the next planting window closes.
RUINENG Greenhouse Engineering—headquartered in China and trading at filmgreenhouses.com—builds its reputation on low-cost, large-area film houses. The company’s standard offer is a galvanized-steel tunnel or multi-span block clad in single- or double-layer PO/PE film, designed for vegetable and flower growers who need to cover a hectare or more without breaking the budget. The frames are simple round-arch or shallow Gothic ribs, pre-punched and bolted, so no welding is required on site. Ventilation is provided by side-wall roll-ups or roof vents, and every project can be shipped with drip lines, pad-fan cooling, soil-less troughs and even a biomass boiler as one turn-key package. RUINENG’s sweet spot is temperate to sub-tropical zones where the main challenge is removing heat and humidity, not supporting snow.
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