Greenhouse Polyethylene Film for Commercial Greenhouses
Our greenhouse poly film solutions are built around high-performance greenhouse polyethylene film engineered to maximize light transmission, control condensation, and extend service life in demanding climates. Designed for 7.2 mil double poly greenhouse coverings, our films combine advanced materials science with proven durability for professional growers.
Exclusively available in Canada.
Discover the 2025 greenhouse poly film innovations.
High-Tech Greenhouse Polyethylene Film (7.2 mil)
The greenhouse polyethylene film used in Harnois structures is manufactured using advanced 8-layer technology, specifically optimized for 7.2 mil double poly greenhouse systems. This construction delivers consistent performance across light transmission, thermal efficiency, and long-term durability.
Key performance objectives:
Maximize usable light for crop growth
Prevent condensation and mist formation
Maintain flexibility and strength in cold conditions
Extend greenhouse covering lifespan
Available Sizes (7.2 mil Greenhouse Poly Film)
EVO AC® Greenhouse Poly Film
We stock 7.2 mil greenhouse poly film in multiple widths to fit commercial greenhouse spans and double-poly inflation systems. For ordering and lead times, contact our team with the width you need.
Note: Pricing varies by project and order volume. This list is provided for product identification only.
Clear High-Resistance 7.2 mil Poly Film
High-Resistance (7.2mil)
Available widths (by the foot)
6’, 8’, 12.5’, 14’, 16’, 18’, 20’, 25’, 28’, 32’, 36’, 40’, 42’, 48’, 50’, 54’
Pre-cut roll formats (105')
12.5’, 20’, 25’, 28’, 32′ & 40′
High-Resistance (7.2mil) with Anti-drip
Available widths (by the foot)
12.5’, 14’, 16’, 18’, 20’, 25’, 28’, 32’, 36’, 40’, 42’, 48’, 50’, 54’
Pre-cut roll formats (105')
12.5’, 20’, 25’, 28’, 32′ & 40′
The Longest-Lasting Anti-Drip Film on the Market
EVO AC® greenhouse poly film is developed with exclusive 8-layer nanotechnology, delivering industry-leading anti-drip performance, even in very low temperatures or on flatter greenhouse roof slopes.
Key Benefits of EVO AC®
Industry’s most durable anti-drip greenhouse film
No mist formation at dawn or dusk
Increased light transmission in challenging conditions
Maintains performance at very low temperatures
Suitable for low-slope greenhouse roofs (< 30°)
Multi-year service life without loss of anti-drip efficiency
Thanks to its nanotech surface layer, EVO AC® preserves its anti-drip treatment over several seasons, reducing humidity-related stress, fungal disease risks, and yield loss.
EVO2 AC® Greenhouse Poly Film
Patented Technology for Double Poly Greenhouses
EVO2 AC® is a patented innovation from Plastika Kritis designed specifically for double poly greenhouse coverings. During installation, the 8-layer film separates into two layers through an air-inflation process, simplifying installation while improving overall performance.
Once installed:
Outer layer: Transparent, highly durable, optimized for maximum light transmission
Inner layer: Thermo-regulating film with integrated EVO AC® anti-drip technology, available in clear or diffused options
Advantages for Commercial Growers
Faster and safer double-poly installation
Optimized thermal insulation and light diffusion
Reduced labor costs during installation
Designed for long-term energy efficiency and durability
A Structure + Greenhouse Poly Film Combination Designed to Last
At Harnois, greenhouse covering performance is not evaluated in isolation. The longevity of a greenhouse polyethylene film depends heavily on the structure it is installed on.
Our greenhouses are engineered with oval-shaped arches, a geometry specifically designed to reduce premature wear on greenhouse poly film.
Why Oval Arches Matter
Allows the greenhouse poly film to slide naturally under wind or snow loads
Minimizes friction points that accelerate film degradation
Eliminates sharp corners found in square or angular tubing
Reduces stress concentrations that can damage the film
Result: Longer greenhouse poly lifespan and fewer premature replacements.
When combined with advanced films like EVO AC® or EVO2 AC®, Harnois structures deliver a truly long-term greenhouse covering solution.
Why Choose Greenhouse Polyethylene Film?
Why Choose Polyethylene Film for Your Greenhouse?
Excellent light transmission (90–91%)
Ensures optimal light penetration to support photosynthesis, plant uniformity, and crop yield.
Long-lasting anti-drip treatment
Advanced anti-drip coatings prevent droplet formation, improve light diffusion, and protect crops from moisture-related diseases.
Efficient thermal insulation
Maintains performance even in very low temperatures, supporting year-round greenhouse operations.
No mist formation
Designed to eliminate internal misting, ensuring consistent lighting and visibility.
Adapts to low-slope roofs
Performs reliably on flatter roof designs, providing flexibility in greenhouse engineering.
Increased durability
Highly robust 7.2 mil greenhouse poly film designed for multi-year use, reducing replacement frequency and operating costs.
When to Replace Your Greenhouse Polyethylene Film
Replacement timing depends on:
Weather-related wear
Declining light transmission
Degradation of surface treatments (anti-drip, anti-UV)
Changes in crop or production requirements
With the latest generation of greenhouse poly films, service life is significantly extended, ensuring consistent performance over multiple seasons.