Sainpoly Multi-Span Tunnel Film Blueberry Greenhouse 1

Sainpoly Multi-Span Tunnel Film Blueberry Greenhouse 2

Sainpoly Multi-Span Tunnel Film Blueberry Greenhouse 3

Sainpoly Multi-Span Tunnel Film Blueberry Greenhouse 4

Sainpoly Multi-Span Tunnel Film Blueberry Greenhouse 5

Sainpoly Multi-Span Tunnel Film Blueberry Greenhouse 6

Sainpoly Multi-Span Tunnel Film Blueberry Greenhouse

Sainpoly Multi-Span Tunnel Film Blueberry Greenhouse is a multi-span, film-covered tunnel specially designed to create a stable, controlled environment for blueberry production. Its sturdy galvanized-steel frame and high-transmittance, UV-stabilized polyethylene film deliver good light diffusion, heat retention and weather resistance for bigger, earlier yields. Tailored ventilation, pest exclusion and easy, modular installation make it scalable, cost-effective and farmer-friendly for commercial blueberry growing.

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Certificate

CE Certificate

Optional system

Planting System

Packing

Safe Packing

Covering

150/200micro PE Film

Color

Transparent

Structure

275g/m2 Hot Galvanized Steel Pipe

Features

Stable Structure Easily Assembled

Application

Vegetable Fruits Flowers

Warranty

5-10 Years

Instruction for use

With installation manual and installation video.

Here are three four-word subtitle options — recommended: "Durable UV Stable Diffuser

Grow fresh off-season blueberries with this multi-span Sainpoly film greenhouse that provides reliable temperature control, strong ventilation and customizable sizes for flat or sloped sites, ensuring consistent yields and energy-saving thermal insulation. Built with hot-dip galvanized steel frames and high-performance plastic film covers, its durable, space-efficient shape and modern style plus thick insulated walls deliver long-lasting quality and secure packaging for safe shipping. Backed by factory production, sample availability and professional after-sales assembly support, these Top sale products offer cost-saving operation, convenient installation and trusted global service.

Sainpoly Multi-Span Blueberry Film

The Sainpoly Multi-Span Tunnel Film Blueberry Greenhouse, listed among Top sale products, features a customizable multi-span layout with high-performance plastic film covers (120/150/180/200 micron options), thick thermally insulating walls and a hot-dip galvanized steel tube skeleton engineered for long service life. Its core and extended attributes deliver clear value by enabling off-season fresh blueberry production in winter and early spring, providing space-efficient, cost-saving cultivation with strong ventilation and reliable microclimate control for higher yields. Structurally designed to bear loads and support coverings, accessories and mechanical systems, the greenhouse is simple to assemble with provided planning drawings and professional after-sales installation support, and is best sited on open, well-drained land with good water and transport access.

Durable Multi-Span Greenhouse Film

The Sainpoly Multi-Span Tunnel Film Blueberry Greenhouse is a large, multi-span agricultural structure with a plastic film cover and hot-dip galvanized steel tube frame designed for off-season blueberry cultivation to produce fresh fruit in winter and early spring. Built for open, well-lit sites with adequate water and good drainage, it features thick insulated walls, strong ventilation, customizable sizes, and durable film options (120–200 micron) for long service life and easy operation. Manufactured by Sainpoly (established 1997, 16,000 m² workshop, 100 ha annual capacity), this cost-saving, high-performance solution is one of their Top sale products and is available from a 300 m² minimum with professional planning and after-sales support.

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Durable Light Diffusion Protection

Sainpoly's Multi-Span Tunnel Film Blueberry Greenhouse combines decades of polymer innovation with precision-engineered multi-span architecture to deliver UV-stabilized polyethylene film, reinforced galvanized steel frames, and a design that creates a consistent, controllable microclimate. As one of our Top sale products, it enhances light diffusion, pest and weather protection, humidity control and energy-efficient heat retention while offering easy assembly and customizable sizes for commercial growers. Key features and advantages include anti-drip coating, high UV resistance, quick-connect joint systems, corrosion-resistant components and low maintenance requirements, providing reliable season extension and higher, more consistent yields.

Material introduction

The Sainpoly Multi-Span Tunnel Film Blueberry Greenhouse pairs a hot-dip galvanized steel skeleton with a multi-layer plastic film cover available in 120/150/180/200 micron thicknesses, providing optimal light transmission and thermal insulation for off-season blueberry production. The galvanized steel tubes deliver strong load-bearing capacity and long-term corrosion resistance (over 15 years in service), while the high-performance film ensures good ventilation, easy operation, and straightforward replacement. As Top sale products, these greenhouses offer a cost-effective, customizable material solution for reliable agricultural use.

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FAQ

What is the Sainpoly Multi-Span Tunnel Film and why is it suitable for blueberry greenhouses?

The Sainpoly Multi-Span Tunnel Film is a purpose-made greenhouse covering designed for multi-span tunnel structures. It typically provides high light transmission with diffusing properties, UV stabilization, and anti-condensation treatments that reduce dripping. For blueberries, it creates a stable microclimate—protecting plants from rain, hail, frost and excessive wind while delivering even light that supports flowering, fruit set and uniform ripening.

How is this film installed on a multi-span tunnel used for blueberries?

The film is usually draped over the tunnel framework and secured at ridge, side and end posts with clamps, ropes, or steel wires and covered by side boards or anchor trenches. Overlap seams should be minimized and sealed with greenhouse tape or heat welding if available. Use proper tensioning to avoid flapping in wind, and cut ventilation openings or fit roll-up sides/vents where needed for airflow.

What thickness or specifications should I choose for blueberry production and harsh weather?

Films are available in multiple thicknesses (commonly from ~80 μm to 200 μm and above). For commercial blueberry tunnels and regions with strong wind, snow or hail, choose a thicker, stronger film (e.g., 120–200 μm) with reinforced edge options. Also prioritize UV-stabilized and anti-drip/anti-fog formulations. Match material strength to local climate and your expected service life.

How should I manage ventilation, humidity and disease risk inside a blueberry tunnel covered with this film?

Blueberries need good air exchange to control humidity and reduce fungal diseases. Use side roll-ups, ridge vents, or end-wall openings to create cross-ventilation during the day, and close vents at night if frost is a risk. Avoid prolonged high humidity by scheduling ventilation during warm hours, and combine with drip irrigation and good canopy management to keep leaves dry. Consider automated vent control in larger operations.

What effects does the film have on light, temperature and berry quality?

The film’s light-diffusing properties spread sunlight more evenly through the canopy, reducing sunscald on fruit and improving overall photosynthesis. It helps raise daytime and night temperatures relative to open-field conditions, extending the growing season and protecting blossoms from light frosts. These microclimate benefits usually translate to more uniform fruit development, better color and improved yields when managed correctly.

How long does the film last, and how do I maintain or repair it during production?

Service life depends on thickness, UV additives and local climate; typical lifespans range from about 3–6 years. Regular maintenance—cleaning dust and bird droppings, re-tensioning edges, and inspecting seams—extends life and light transmission. Small tears can be patched with compatible greenhouse repair tape; larger damage may require panel replacement. At end of life, check local recycling programs for polyethylene films or dispose according to local regulations.

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